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HomeMy WebLinkAboutPermit PL16-0009 - CITY OF TUKWILA / PUBLIC WORKS - GILLIAM CREEK CULVERT REPLACEMENTGILLIAM CREEK CULVERT REPLACEMENT SITE APN: STRT-01064 RECEIVED PARENT PROJECT NO: PL16-0009 PROJECT N O : L 16-0011 City of Tukwila Allan Ekberg, Mayor Department of Community Development - Jack Pace, Director May 19, 2017 NOTICE OF DECISION Amended (highlighted below in yellow) TO: Cyndy Knighton, City of Tukwila Public Works Washington State Department of Ecology Washington State Department of Fish and Wildlife Muckleshoot Indian Tribe, ATTN. Karen Walter Army Corps of Engineers Jeremy Tyndall, 15625 42 Avenue S. #29, Tukwila 98188 This letter serves as a Notice of Decision and is issued pursuant to TMC 18.104.170 on the following project and permit approval. I. PROJECT INFORMATION Project File Number: L16-0011, 42 Avenue Street Improvement Project Applicant: City of Tukwila Type of Permit Applied for: Special permission from the Director Project Description: Location: Associated Files: SEPA Determination: II. DECISION The proposal is to reconstruct 42 Avenue S. and add curb, gutter, sidewalks, landscaping, street illumination, undergrounding of overhead utility lines, new storm water facilities and street signage. The pipe carrying the Gilliam watercourse underneath 42 Avenue S. is failing and is being replaced as part of the project. 42 Avenue S. from Southcenter Boulevard to S. 160th Street E14-0010 (Environmental Review) A Determination of Nonsignificance in October 2014 The Community Development Director has determined that the special permission application does comply with applicable City and state code requirements and has approved the application, subject to the following conditions: 1. Revise the 5-year Monitoring Plan: notice of Decision — L16-OOP May 18,2017 Page 2 • to accurately reflect appropriate protocol for herbicide use. The Plan must specify that herbicide use is only allowed with prior approval from the City's Urban Environmentalist. Dates, name of proposed chemical, reason for use, and name of the certified aquatic pesticide applicator must be sent to the Urban Environmentalist (email is acceptable.) • to state that an as -built report shall be prepared after installation and planting. Additionally, the annual monitoring report shall be prepared by a qualified expert and delivered to the City's Urban Environmentalist by October 31 as opposed to a "spring and fall report" for each year of the five year monitoring period. 2. Revise Sheet 84 to show a native plant enhancement of the area between the WSDOT limited access fence line and the back of the Project sidewalk/driveway areas per Exhibit G. III. YOUR APPEAL RIGHTS The Decision on this Permit Application is a Type 2 decision pursuant to Tukwila Municipal Code §18.104.010. Other land use applications related to this project may still be pending. No administrative appeal of a DNS or an EIS is permitted. One administrative appeal to the Hearing Examiner of the Decision on the Permit itself is permitted. A party who is not satisfied with the outcome of the administrative appeal process may file an appeal in King County Superior Court from the Hearing Examiner decision. IV. PROCEDURES AND TIME FOR APPEALING In order to appeal the Community Development Director's decision on the Permit Application, a written notice of appeal must be filed with the Department of Community Development within -14-21 days of the issuance of this Decision, that is by (21 days from Date of dccisionJune 9, 2017. The requirements for such appeals are set forth in Tukwila Municipal Code 18.116. All appeal materials shall be submitted to the Department of Community Development. Appeal materials MUST include: 1. The name of the appealing party. 2. The address and phone number of the appealing party; and if the appealing party is a corporation, association or other group, the address and phone number of a contact person authorized to receive notices on the appealing party's behalf. 3. A statement identifying the decision being appealed and the alleged errors in the decision, including any specific challenge to an MDNS. / \ Notice of Decision — L16-0011 May 18,2017 Page 3 4. The Notice of Appeal shall identify (a) the specific errors of fact or errors in application of the law in the decision being appealed; (b) the harm suffered or anticipated by the appellant, and (c) the relief sought. The scope of an appeal shall be limited to matters or issues raised in the Notice of Appeal. 5. Appeal fee per the current fee schedule, additional hourly charges may apply. In addition all hearing examiner costs will be passed through to the appellant. V. APPEAL HEARINGS PROCESS Any administrative appeal regarding the Permit shall be conducted as an open record hearing before the Hearing Examiner based on the testimony and documentary evidence presented at the open record hearing. The Hearing Examiner decision on the appeal is the City's final decision. Any party wishing to challenge the Hearing Examiner decision on this application must file an appeal pursuant to the procedures and time limitations set forth in RCW 36.7oC. An appeal challenging a DNS, an MDNS or an EIS may be included in such an appeal. If no appeal of the Hearing Examiner decision is properly filed in Superior Court within such time limit, the Decision on this permit will be final. The City's decision to issue a DNS, an MDNS or an EIS is final for this permit and any other pending permit applications for the development of the subject property. VI. INSPECTION OF INFORMATION ON THE APPLICATION Project materials including the application, any staff reports, and other studies related to the permits are available for inspection at the Tukwila Department of Community Development, 6300 Southcenter Blvd., Suite ioo, Tukwila, Washington 98188 from Monday through Friday between 8:3o a.m. and 5:0o p.m. The project planner is Moira Bradshaw, who may be contacted at 2o6-431-3651 for further information. Property owners affected by this decision may request a change in valuation for their property tax purposes. Contact the King County Assessor's Office for further information regarding property tax valuation changes. The notice board must be removed at the expiration of the appeal period if no appeal is filed. J ' k Pace, Director Department of Community Development City of Tukwila City of Tukwila Allan Ekberg, Mayor Department of Community Development - Jack Pace, Director MEMORANDUM May 31, 2018 TO: Jack Pace, Director, Dept. of Community Development FM: Andrea Cummins, Urban Environmentalist RE: 42"d Avenue South/Gilliam Creek Culvert Replacement - Mitigation Background: This memo summarizes my knowledge of the status of the current 42"d Ave S./Gilliam Creek culvert project in relation to proposed mitigation. The scope of the project has changed since the mitigation plan was accepted as part of the SEPA and the Special Permission, Director. The footprint of the construction has changed substantially (in both the stream area as well as along the roadway) from the original site plans, which were used in the permitting process. As this is the case, the original and approved mitigation plan is no longer valid and will need to be updated to reflect the new footprint. The previous restoration plan for the area around the new culvert reflected a .17-acre planting, 52 trees and 146 shrubs in total. A new drawing showing the current clearing and construction footprint will need to be created so that the scope of the additional mitigation requirement can be assessed. It is safe to assume that additional funds will need to be expended to create the new mitigation plan, as well as implement the restoration to include additional plantings, soil amendment, mulch and irrigation as required by site conditions. Maintenance and monitoring costs will also increase due to the larger restoration area. The sooner a drawing of the current project footprint can be created, the faster the new costs can be assessed. The new mitigation plan will need to be submitted to DCD for approval as well as to WDFW as an update for the existing HPA. There was additional tree removal along the street during construction, generally due to unstable slopes and the original design not providing enough protection for trees that were close to the edge of the clearing limits. I am aware of the removal of approximately 10 additional trees (of various sizes) along the ROW and on private property, but it is likely there were more. Replacement of these trees, particularly those which were on private property should be considered but are not required as part of the Special Permission. i May 31, 2018 42' Ave S./Gilliam Creek Page 2 of 2 Recommendations: The contractor should create and submit an updated clearing limits/construction boundary site plan. Once that is available, I am happy to go out onsite and see the extent and discuss the changes that will be needed to provide mitigation for the extended area. A new mitigation/monitoring and maintenance will need to be submitted. DCD will review and update the Special Permission as needed. Mitigation should start as soon as construction is completed. W:\\Sharepoint\Long Range Planning\2016-2017 Landscaping & Tree Code\Draft Tree Code\Jack\Mayor Memo City of Tukwila Allan Ekberg, Mayor Public Works Department - Bob Giberson, Director May 26, 2017 Moira Bradshaw Senior Planner Department of Community Development 6300 Southcenter Boulevard, Suite 100 Tukwila, WA 98188 RE: 42nd Avenue Street Improvement Project, L16-0011 Revisions Required for Permit Compliance Project No. 99410303 Dear Moira: In accordance with the Notice of Decision issued on May 18, 2017 on the Special Permission from the Director permit, I have revised the required documents. The 5-year Monitoring Plan has been changed to address the herbicide protocol and the annual monitoring report requirements. Two plan sheets have been modified from the plans submitted with the permit to address the newly required native plant area. These plan sheets have already been provided to the construction management team for preparation of a change order to the contractor to revise their work. Please let me know if you have any questions or concerns with these revisions. Sincerely, V� Cynd'y Knighfo Senior Program Mar(ager — Transportation Encl. 5-year Monitoring Plan, May 26, 2017 Revised Plan Sheets 84 and 86 RECEIVED MAY 262017 Community Development \ r TECHNICAL MEMORANDUM 5-year Monitoring Plan City of Tukwila — 40th-42nd Avenue S Phase III Gi Culvert Replacement Project PREPARED FOR: Cyndy Knighton, Senior Program Manager - Transportation City of Tukwila COPY TO: Eric Haupt/CH2M PREPARED BY: Linda Cyra-Korsgaard, RLA WA DATE: May 26, 2017 PROJECT NUMBER: Special Permission Permit #L16-00011 REVISION NO.: 1 APPROVED BY: Eric Haupt/CH2M Ca'1?A11.: iam Creek This 5-year monitoring plan outlines the actions that will be taken by the City of Tukwila in association with selected Contractor to restore and monitor the Gilliam Creek Culvert Replacement buffer area revegetation adjacent to 42"d Avenue S. Tukwila WA. The Construction is scheduled to begin in spring 2017, with revegetation implementation to begin in fall 2017. The project is located entirely on City of Tukwila land in western Washington. Roles, Responsibilities and Contacts The City of Tukwila project manager will be the main contact during design. During construction, the project engineer will be the main contact. The City of Tukwila will assign an environmental specialist who will be the main revegetation contact to consult during the construction phase. After the project, has been completed, and the one year maintenance and monitoring contract is closed out, the project engineer will transition the remainder monitoring to the City of Tukwila Public Works Department. The project as planned will minimally affect soil conditions along the roadway. Cuts and fills will be designed to minimize erosion. The erosion and sediment control plans will be developed and will be the responsibility of the contractor. The project engineer and environmental specialists will have a limited role, primarily in providing guidance for temporary stabilization practices. Key to this guidance will be the selection of appropriate materials and methods that will not deter future revegetation efforts. Revegetation Objectives Following are the revegetation objectives for the creek buffer area: • Control noxious weeds. • Maintain slope stability. 5-YEAR MONITORING PLAN • Minimize soil erosion. • Maintain biodiversity of the surrounding plant communities by planting native and locally adapted species. • Enhance scenic beauty using native grass, shrub, and tree species. Planting Performance Standards Plant species and seed mix are outlined in the project Landscape Plans and Specifications. Soil preparation is covered in the project specifications, civil) and landscape details. As -built plans with final species and temporary (5 year) irrigation will be the basis of performing on -going monitoring of the project site. • Removal of riparian vegetation would be minimized to the greatest extent possible. • All trees and riparian vegetation remaining would be protected with fencing and care would be taken to avood soil compaction and erosion. • All native vegetation to be planted would meet the American Standards for Nursery Stock, ANSI Z60.1 latest edition • Plants would be labeled with scientific and common name and nursery of origin when brought to site. • All plants shall comply with State and Federal laws governing the shipping, selling and handling of plant stock and inspection for plant diseases and pest infestations. Plants shall be certified free from disease and infestation and invasive weeds by the grower and supplier. Any inspection certificates required by law shall accompany each shipment. • Seed would be certified as prepared in accordance with project specifications. • The project contractor will design, install and maintain a temporary irrigation system to serve the site during the 1st year plant establishment period then the system will be transitioned over to the City for the remainder of the 5-year monitoring period. • Temporary irrigation plan, winterization/spring start-up would be approved by the City of Tukwila. • Survival rates, percent cover and diversity would be met by the contractor or contractor would install additional seeding/planting prior to final project acceptance. 5-YEAR MONITORING PLAN Table 1 Performance Standards Item Creek Bank Percent Native Plant Diversity Survival Rate Cover Required Plants Year 1 100% Additional information • Per Project Spec and Plans • Per Zones outlined on plans • Species substitutions shall be approved and documented on as -built Year 2-5 85% Additional information • Per Plans and Zones • Percent of establishment would be calculated for each side of Roadway Seed Year 1 1000% Additional information • Per Project Spec and Plans • Per Zones outlined on plans • Percent of establishment would be calculated for each side of Roadway Satisfactory Stand of Grass that has: • No bare spots larger than 3 square feet. • Not more than 10 percent of total area with bare spots larger than 1 square foot. • Not more than 15 percent of total area with bare spots larger than 6 square inches. • No erosion or gullying Year 2-5 85% Additional information • Per Plans and Zones Satisfactory Stand of Grass that has: • No bare spots larger than 3 square feet. • Not more than 10 percent of total area with bare spots larger than 1 square foot. • Not more than 15 percent of total area with bare spots larger than 6 square inches. • No erosion or gullying Project Constraints Restoration activities of the area impacted by the replacement of the creek culvert will be dependent on the Construction Schedule. Erosion control methods may be deployed if the restoration cannot be planted during the specified planting seasons. Access to the site for purposes of maintenance and monitoring from 42nd Avenue S. will be coordinated with the City of Tukwila project manager. Noxious Weeds Prevention The contractor will be required to clean all equipment and vehicles before entering and leaving the site to minimize spread of state- and county -listed noxious and non-native plants. Mud, dirt, and plant parts will be removed from project equipment before moving equipment into project areas. Also, the contractor will be required to use gravel from a known weed -free site. The contractor will be required to monitor and flag the known noxious and non-native plants, and remove any plants before project work 5-YEAR MONITORING PLAN begins. The contractor will be required to use weed -free staging areas within the project site as agreed by the project engineer. Control Monitoring and treatment of noxious weeds and invasive plants will occur regularly beginning at project start and will continue through successful vegetation establishment. The monitoring and treatment plan will be cooperatively developed by the City and the Contractor. The plan is not a substitute for prevention, but rather directs and funds additional resources to monitor and treat noxious weeds and invasive plant species in, and adjacent to, the construction corridor during and after project implementation. Monitoring also includes haul roads, source sites and waste areas. Herbicide use is only allowed with prior approval from the City's Urban Environmentalist. Dates, name of proposed chemical, reason for use, and name of the certified aquatic pesticide applicator must be sent to the Urban Environmentalist (email is acceptable.) Monitoring Program Overall Monitoring An as -built Gilliam Creek Culvert Replacement buffer area revegetation report shall be prepared after installation and planting. Baseline(post-construction) project site conditions will be documented for reference. For each post -construction monitoring year, a monitoring report will be submitted to the City of Tukwila. The reports will describe the monitoring methods, performance standards, results, and contingency measures. Each monitoring report will include photographic documentation taken from established photo points, one for each zone. The annual monitoring report shall be prepared by a qualified expert and delivered to the City's Urban Environmentalist by October 31 of each year of the five-year monitoring period. Monitoring will be conducted during late spring to early summer of the field season following the initial plant and seed application. Areas of unsatisfactory plant establishment will be evaluated for retreatment and will be re -seeded, if appropriate, the following fall. Shrubs and trees will be assessed for establishment rate, survival, animal damage and need for protection, and potential need for replacement with new plants. At final contract acceptance the contractor shall turn over necessary user manuals for the irrigation system, as -built drawings and plant lists, monitoring reports and photo documentation. The City of Tukwila Public Works Department will continue the monitoring over the next four years to evaluate success in establishment, species composition, and percentage of plant cover. Noxious weeds will also be monitored, and will be eradicated if found on the site. During the monitoring inspections a qualified expert would field inspect the new project features including the riparian plantings. The monitoring inspection would look for and document evidence of bank erosion, planting success and failures and invasive vegetation. Revegetation Zones Six revegetation zones were delineated for this project based on slopes, soil depths and location. .• , 5-YEAR MONITORING PLAN Monitoring Tasks The contractor will install a temporary irrigation system and will operate, maintain and monitor the planting and seeding through the 1-year establishment period. Plant material or seeding areas that are not satisfactory will be replaced through the final acceptance of the project. Subsequent to the 15t year, the City of Tukwila Public Works Department will maintain and monitor the planting for the remaining 4 years. Each zone will have a representative 30x 30 plot staked and photographed at installation and the following fall and spring for the 5-year duration. The number, growth and health condition of the seed, shrubs and trees will be documented and recommendations made for adjustments in fertilizer, water, pest control, and species replacement. Noxious weeds will be monitored for a minimum of 5 years and will be eradicated if found on the site. Maintenance Tasks In the spring of every year, the irrigation system will be made operational and timed to supply adequate water to all areas. In the fall the irrigation system will be winterized. Trash will be collected and disposed of during the spring and fall inspections. Summary The Contractor will submit monitoring reports by October 31st and at the end of the 1-year plant establishment & monitoring period as part of the contract. Subsequent monitoring reports will be submitted October 315t of years 2, 3, 4 and 5. They will be compiled and submitted to the City of Tukwila Urban Environmental Specialist. 0 N z J x 0 I— i iLVF�'}iVF' • 36 MR 4 HD 49 GS 49 PO LANDSCAPE NOTES 0 ADJUST SHRUBS SO THAT NO SHRUB CENTER IS CLOSER THAN 3' TO SIDEWALK/DRIVEWAY RETURN, TYP. 0 PLANT SHRUBS NO CLOSER THAN 3' FROM BACK OF SIDEWALK LEGEND SEED/SOD MIX B & TOPSOIL NATIVE SHRUB AREA 0 SHRUB & BARK MULCH 2" DEPTH CRUSHED SURFACING TOP COURSE - HVF — TREE PROTECTION FENCING (HVF) co NUMBER OF PLANTS c�i>c'S c'`1 7�1c - 32 BT 63+00 64+00 65+00 66+00 •x•x x•k•x•x•x•X•x•x•x• 42ND AVE S. •x•X•x•X•X•X•x•7Cx:x•X•x•x•X•X•x•)�\ x•x•x•xo •x•x•X•X.X•x•x•X•x•x•kV- x•) / klVF 9 BT 9 RR 6 RI 9 PO 3 BT' 3 RR 2 RI L I • } 6 BT 6 RR 4 RI 3 PO 3 BT 2 RR 6 BT 3 RR 3 RI ♦♦ 3 PO ♦ ♦ • ♦ • • • • • ♦ • • • \— PLANT SPECIES (SEE SHEET LA-6) NOTES: 1. SEE DEMOLITION AND EROSION CONTROL SHEETS FOR TREE REMOVALS. x 1- 0 20 40 SCALE IN FEET PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- by date dealgned LCK CA d,ad LCK n-ol are EWH aol d CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III LANDSCAPE PLAN 84 89 file no LA-4 scale 1"=20' / 1 PLANT SCHEDULE - GILLIAM CREEK REVEGETATION BUFFER AREA SYMBOL AREA QUANTITY BOTANICAL NAME COMMON NAME SIZE NOTES TREES 0.17 ACRE 5 SALIX LASIANDRA PACIFIC WILLOW * #3 PLANT 12' O.C. TRIANGULAR SPACE 5 SALIX SCOULERIANA SCOULER WILLOW* #3 PLANT 12' O.C. TRIANGULAR SPACE 5 BETULA PAPYRI FERA PAPER BIRCH* #3 PLANT 12' O.C. TRIANGULAR SPACE 5 FRAXINUS LATIFOLIA OREGON ASH* #3 PLANT 12' O.C. TRIANGULAR SPACE 5 THUJA PLICATA WESTERN RED CEDAR ** #3 PLANT 12' O.C. TRIANGULAR SPACE •- ••� 5 TSUGA HETEROPHYLLA WESTERN HEMLOCK** #3 PLANT 12' O.C. TRIANGULAR SPACE 5 ALNUS RUBRA RED ALDER*** #3 PLANT 12' O.C. TRIANGULAR SPACE 5 ACER CIRCINATUM VINE MAPLE** #3 PLANT 12 O.C. TRIANGULAR SPACE 4 ACER MACROPHYLLUM BIG -LEAF MAPLE** #3 PLANT 12' O.C. TRIANGULAR SPACE 4 PSEUDOTSUGA MENZIESII DOUGLAS FIR*** #3 PLANT 12' O.C. TRIANGULAR SPACE 4 PIN US CONTORTA SHORE PINE*** #3 PLANT 12' O.C. TRIANGULAR SPACE SHRUBS 0 .22 ACRE 24 CORNUS SERICEA REDOSIER DOGWOOD* #3 PLANT GROUPS OF 3 AT 3' O.C. TRIANGULAR SPACE 24 SAMBUCUS RACEMOSA RED ELDERBERRY* #3 PLANT GROUPS OF 3 AT 3' O.C. TRIANGULAR SPACE 24 MYRICA CALIFORNICA PACIFIC WAX MYRTLE** #3 PLANT GROUPS OF 3 AT 3' O.C. TRIANGULAR SPACE itiiiii "A 23 RIBES SANGUINEUM RED FLOWERING CURRENT*** #3 PLANT GROUPS OF 3 AT 3' O.C. TRIANGULAR SPACE 27 HOLODISCUS DISCOLOR OCEANSPRAY*** #3 PLANT GROUPS OF3AT3'O.C.TRIANGULAR SPACE 24 SYMPHORICARPOS ALBUS SNOWBERRY*** #3 PLANT GROUPS OF 3 AT 3' O.C. TRIANGULAR SPACE SEEDING 0.22 ACRE NATIVE GRASS MIX A SEE SPECIFICATION ii ►•i•iii• ������•.4 0.22 ACRE TOPSOIL A 4" DEPTH 0.22ACRE FINE COMPOST 3" DEPTH NOTES: *TOLERATES WET TO SATURATED SOILS ** RECOMMEND MODERATELY WET TO DRY SOILS *** RECOMMEND DRY SOILS 1, THE ACTUAL PLACEMENT OF REVEGETATION TREES AND SHRUBS WILL BE AT THE DIRECTION OF THE ENGINEER AND IN CONSULTATION WITH THE CITY'S HABITAT MANAGER AND/OR URBAN ENVIRONMENTALIST. PLANT SCHEDULE - 42ND AVE S. PLANTING AND SEED/SOD AREAS SYMBOL AREA QUANTITY BOTANICAL NAME COMMON NAME SIZE NOTES SEEDING 0.53ACRE SEED/SOD MIX B SEE SPECIFICATIONS 0.53ACRE TOPSOILA 6" DEPTH IN SEED/SOD AREA PLANTS PT •- - - - - 54 PARTHENOCISSUS TRICUSPIDATA BOSTON IVY 4" POT PLANT 18" O.C. BT 0000 102 BERBERUS THUN BERGI I 'CRIMSON PYGMY' CRIMSON PYGMY DWARF BARBERRY #3 PLANT3'O.C. RR 0000 90 ROSA RUGOSA 'SHOWY PAVEMENT' SHOWY PAVEMENT ROSE #3 PLANT 3' O.C. RI 0000 73 RHAPHIOLEPIS X DELACOURII 'GEORGIA PETITE' GEORGIA PETITE INDIAN HAWTHORN #3 PLANT 3' O.C. PO 0000 109 PHYSOCARPUS OPULIFOLIUS 'PODARAS 3' LEMON CANDY NINEBARK #3 PLANT 3' O.C. IN TRENCH, PLANT GROUPS OF 3 AT 3' O.C. TRIANGULAR SPACE WITH SALAL IN NATIVE SHRUB AREA. HD 000 4 HOLODISCUS DISCOLOR OCEANSPRAY #3 PLANT 20' O.C. 5' OFFSET FROM FENCE MR 0000 36 MAHONIAREPENS CREEPING BARBERRY (CREEPINGOREGONGRAPE) #3 PLANT3'O.C. GS 49 GAULTHERIA SHALLON SALAL #3 PLANT GROUPS OF 3AT3' O.C. TRIANGULAR SPACE WITH NINEBARK IN NATIVE SHRUB AREA. ACER 00 2 ACER CIRCINATUM VINE MAPLE 1.5"CALIPER PLANT WHERE SHOWN 479 SY AMENDED TOPSOIL 12" DEPTH - CONTINUOUS TRENCH IN ROADWAY LANDSCAPE DETAILS 479 SY BARK/WOODCHIP MULCH 3" DEPTH - CONTINUOUS IN PLANT BEDS SEE ROADWAY LANDSCAPE DETAILS PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- dale d-Ipned LCK CA checked LCK PSI cog accier ENH LANDSCAPE AND REVEGETATION NOTES: 1. SEE DEMOLITION AND EROSION CONTROL SHEETS FOR TREES TO REMAIN. 2. GRADING SHALL BE ACCEPTED PRIOR TO PLANT INSTALLATION. 3. COORDINATE ACCESS AND CONSTRUCTION STAGING WITH ENGINEER. 4. DISCREPANCIES BETWEEN PLANS AND SITE CONDITIONS SHALL BE BROUGHT TO THE ATTENTION OF THE ENGINEER PRIOR TO PROCEEDING WITH LANDSCAPE WORK. 5. PLANTING IN WATER SATURATED SOILS ON AREAS WITH STANDING WATER WILL NOT BE ALLOWED. 6. ALL LANDSCAPE AND PLANT MATERIALS SHALL BE IN ACCORDANCE WITH THE AMERICAN STANDARDS FOR NURSERY STOCK, ANSI Z60.1 LATEST EDITION. 7. SUBMIT TO ENGINEER THREE MONTHS PRIOR TO LANDSCAPE AND REVEGETATION WORK, CONFIRMED PROCUREMENT ORDERS FOR ALL PLANT MATERIAL. PROVIDE THE QUANTITY, LOCATION PHONE NUMBER AND ADDRESS OF THE GROWERS. 8. ALL NURSERIES UNDER CONTRACT TO PROVIDE PLANT MATERIAL FOR THE PROJECT MUST HOLD P. RAMORUM CERTIFICATION IN ORDER TO GUARANTEE AGAINST RAMORUM BLIGHT AND DIEBACK. 9. PRIOR TO COMMENCEMENT OF LANDSCAPE AND REVEGETATION WORK, CONTRACTOR SHALL SUBMIT AND GAIN APPROVAL FOR A WATERING PROGRAM TO PROVIDE COMPLETE UNIFORM COVERAGE TO ALL NEW PLANTINGS. 10. CONTACT ENGINEER IN WRITING 3 WEEKS IN ADVANCE OF PLANT MATERIAL DELIVERY TO ESTABLISH ON -SITE INSPECTION. PLANT MATERIAL SHALL NOT BE INSTALLED UNTIL IT HAS BEEN APPROVED BY THE ENGINEER. ALL PLANT MATERIAL SHALL BE PLACED IN ONE ROADWAY AND ONE REVEGETATION LOCATION ON THE PROJECT SITE AND CONTRACTOR TO PROVIDE ENGINEER UNRESTRICTED ACCESS FOR VISUAL INSPECTION OF INDIVIDUAL PLANTS. PLANTS SHALL BE ORGANIZED IN BLOCKS BY SPECIES AND SUFFICIENTLY SPACED TO OBSERVE OVERALL GROWTH HABIT. TREES SHALL BE UNTIED AND BRANCHES SEPARATED. UNACCEPTABLE PLANT LMATERIAL SALL BE REOVED FROM THE JOB SITE. 11. ALL AREAS DISTURBED BY THE CONSTRACTOR OUTSIDE THE AREAS SHOWN ON THE LANDSCAPE PLANS SHALL RECEIVE SEED/SOD APPROVED BY THE ENGINEER. GILLIAM CREEK REVEGETATION AREA 1. THE ACTUAL PLACEMENT OF REVEGETATION TREES AND SHRUBS WILL BE AT THE DIRECTION OF THE CITY OF TUKWILA URBAN ENVIRONMENTAL SPECIALIST OR THEIR DESIGNEE. 2. TREES SHALL BE SPACED 12 FOOT ON CENTER IN AREAS SEE DETAIL ON SHEET 87. 3. SHRUBS SHALL BE SPACED 3 FOOT ON CENTER IN CLUSTERS OF 3 OF THE SAME SPECIES INTERSPERSED BETWEEN THE TREES. 4. TOPSOIL AND COMPOST SHALL BE BLENDED WITH EXISTING SOIL IN ALL AREAS OUTSIDE THE TREE AND SHRUB MULCH RINGS AND SEEDED WITH SEED MIX A. 5. CONTRACTOR MAY HYDROSEED OR HAND SEED, NO OVERSEEDING OF PLANT RINGS WILL BE PERMITTED. 6. CONTRACTOR RESPONSIBLE FOR PROVIDING ADEQUATE WATER FOR REVEGETATION AREA. DEAD OR DYING REVEGETATION PLANTS TO BE REPLACED AT A 2 TO 1 RATIO. 7. CONTRACTOR SHALL DESIGN AND INSTALL A TEMPORARY IRRIGATION SYSTEM FOR THE GILLIAM CREEK REVEGETATION AREA. IRRIGATION SYSTEM TO REMAIN IN PLACE FOR 5 YEARS. OWNER WILL FURNISH 3/4" METER AND ELECTRICAL SERVICE. CONTRACTOR RESPONSIBLE FOR MAINTENANCE, WEED/PEST CONTROL, AND IRRIGATION FROM THE BEGINNING OF THE PROJECT AND CONTINUE THROUGH THE FIRST YEAR OF PLANT ESTABLISHMENT, SEE SPECIFICATIONS. 42ND AVENUE ROADWAY PLANTING 1. PLANT SHRUBS IN LINEAR GROUPS OF 3 OF THE SAME SPECIES BEGINNING FROM EVERY DRIVEWAY -END. THE REPEATING SEQUENCE IS: 3 BT, 3 RR, 3 RI, 3 PO AND THE SEQUENCE IS SOUTH TO NORTH. THE SEQUENCE STARTS OVER AT EVERY NEW DRIVEWAY -END. 2. ROADWAY PLANTING OF SHRUBS SHALL BE IN A CONTINUOUS AMENDED TOPSOIL TRENCH. NATIVE SHRUB BED SHALL BE IN A CONTINUOUS AMENDED TOPSOIL AREA. 3. MULCH SHALL BE CONTINUOUS THROUGHOUT THE PLANT BEDS. 4. NO TEMPORARY OR PERMANENT IRRIGATION SYSTEM FOR THE ROADWAY PLANTING. CONTRACTOR SHALL BE RESPONSIBLE FOR THE PLANT WATERING, MAINTENANCE, AND WEED/PEST CONTROL THROUGH THE FIRST YEAR OF PLANT ESTABLISHMENT. REVEGETATION MAINTENANCE 1. PERFORM MAINTENANCE OPERATIONS DURING MAINTENANCE PERIOD, (SEE SPECIFICATIONS) TO INCLUDE: - WATERING: KEEP SURFACE MOIST. - WASHOUTS: REPAIR BY FILLING WITH TOPSOIL, FERTILIZING, SEEDING, AND COMPOST MULCHING. - MULCH: REPLACE WHEREVER AND WHENEVER WASHED OUT OR BLOWN AWAY. - WEEDING: MONITOR AND CONTROL NOXIOUS WEEDS AND INVASIVE SPECIES. - RESEED: UNSATISFACTORY AREAS OR PORTIONS THEREOF IMMEDIATELY IF A SATISFACTORY STAND HAS NOT BEEN PRODUCED. - RESEED/REPLANT: DURING NEXT PLANTING SEASON IF SCHEDULED END OF MAINTENANCE PERIOD FALLS AFTER SEPTEMBER 15TH. - RESEED/REPLANT ENTIRE AREA IF SATISFACTORY STAND HEALTHY AND VIABLE PLANTS DO NOT DEVELOP BY END OF CONTRACT. CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III LANDSCAPE NOTES AND PLANT SCHEDULE 86 89 file no LA-6 scale Project Name: Type of Action: File Numbers: E Applicant; CITY Site Address: 42"D AVE. S FR UBLIC I 0 BM OMMENT OR TO' OBTAIN ADDITIONAL INFORMATION. PLEASE,C O `:ACT THEEP TIIENT OF COMMUNITY DEVELOPMENT 206) 431 ,36 0 ,1°Tuk Plann 6300 'So % hcentei - Ivd. # ' 0 1 eity of J uIwiea Department Of Community Development AFFIDAVIT OF DISTRIBUTION I, Jaclyn Adams , HEREBY DECLARE THAT: Notice of Application X Notice of Decision AMENDED Notice of Public Hearing Notice of Public Meeting Determination of Non- Significance Mitigated Determination of Non - Significance Determination of Significance & Scoping Notice Short Subdivision Agenda Notice of Application for Shoreline Mgmt Permit Shoreline Mgmt Permit Board of Appeals Agenda Packet Board of Adjustment Agenda Packet Official Notice Notice of Action Other: Was mailed to each of the addresses listed on the letter on this 24th day of May , 2017 Project Name: 42nd Ave St Improvement Project Number: L16-0011, PL17-0009 Associated File Number (s): E14-0010 Mailing requested by: Moira Bradshaw Mailer's signature: ,zi eit[l of Department Of Community AFFIDAVIT OF J u;ftwita Development DISTRIBUTION I, Jaclyn Adams , HEREBY DECLARE THAT: Notice of Application X Notice of Decision Notice of Public Hearing Notice of Public Meeting Determination of Non- Significance Mitigated Determination of Non - Significance Short Subdivision Agenda Determination of Significance & Scoping Notice Notice of Application Shoreline Mgmt Permit for Shoreline Mgmt Permit Board of Appeals Agenda Packet Board of Adjustment Agenda Packet Official Notice Notice of Action cl,Q, A-L. 4 --(--c ay) Nc))cQ\-I X Other: STAFF REPORT AND EXHIBITS CA, . Was mailed to each of the addresses listed/attached on this 19th day of _ May , 2017 Project Name: 42nd Ave Street Improvement Project Number: L16-0011, PL17-0009 Associated File Number (s):E14-0010 Mailing requested by: Moira Bradshaw / Minnie Dhaliwal Mailer's signature: City of Tukwila Allan Ekberg, Mayor Department of Community Development - Jack Pace, Director May ig, 2017 NOTICE OF DECISION TO: Cyndy Knighton, City of Tukwila Public Works Washington State Department of Ecology Washington State Department of Fish and Wildliife Muckleshoot Indian Tribe, ATTN. Karen Walter Army Corps of Engineers Jeremy Tyndall, 3.5625 42 Avenue S. #29, Tukwila 983.88 This letter serves as a Notice of Decision and is issued pursuant to TMC 3.8.104.17o on the following project and permit approval. I. PROJECT INFORMATION Project File Number: Li6-ooii, 42 Avenue Street Improvement Project Applicant: City of Tukwila Type of Permit Applied for: Special permission from the Director Project Description: The proposal is to reconstruct 42 Avenue S. and add curb, gutter, sidewalks, landscaping, street illumination, undergrounding of overhead utility lines, new storm water facilities and street signage. The pipe carrying the Gilliam watercourse underneath 42 Avenue S. is failing and is being replace as part of the project. Location: 42 Avenue S. from Southcenter Boulevard to S. i6oth Street Associated Files: E3.4-ooio (Environmental Review) SEPA Determination: A Determination of Nonsignificance in October 2014 II. DECISION The Community Development Director has determined that the special permission application does comply with applicable City and state code requirements and has approved the application, subject to the following conditions: 1. Revise the 5-year Monitoring Plan: ■ to accurately reflect appropriate protocol for herbicide use. The Plan must specify that herbicide use is only allowed with prior approval from the City's Urban Environmentalist. Dates, name of proposed chemical, reason for use, Notice of Decision — L16-0011 May 18,2017 Page 2 and name of the certified aquatic pesticide applicator must be sent to the Urban Environmentalist (email is acceptable.) ■ to state that an as -built report shall be prepared after installation and planting. Additionally, the annual monitoring report shall be prepared by a qualified expert and delivered to the City's Urban Environmentalist by October 31 as opposed to a "spring and fall report" for each year of the five year monitoring period. 2. Revise Sheet 84 to show a native plant enhancement of the area between the WSDOT limited access fence line and the back of the Project sidewalk/driveway areas per Exhibit G. III. YOUR APPEAL RIGHTS The Decision on this Permit Application is a Type 2 decision pursuant to Tukwila Municipal Code §18.3.o4.oio. Other land use applications related to this project may still be pending. No administrative appeal of a DNS or an EIS is permitted. One administrative appeal to the Hearing Examiner of the Decision on the Permit itself is permitted. A party who is not satisfied with the outcome of the administrative appeal process may file an appeal in King County Superior Court from the Hearing Examiner decision. IV. PROCEDURES AND TIME FOR APPEALING In order to appeal the Community Development Director's decision on the Permit Application, a written notice of appeal must be filed with the Department of Community Development within 14- days of the issuance of this Decision, that is by (21 days from Date of decision, 2o17. The requirements for such appeals are set forth in Tukwila Municipal Code 18.116. All appeal materials shall be submitted to the Department of Community Development. Appeal materials MUST include: z. The name of the appealing party. 2. The address and phone number of the appealing party; and if the appealing party is a corporation, association or other group, the address and phone number of a contact person authorized to receive notices on the appealing party's behalf. 3. A statement identifying the decision being appealed and the alleged errors in the decision, including any specific challenge to an MDNS. 1' Notice of Decision — L16-0011 May 18, 2017 Page 3 4. The Notice of Appeal shall identify (a) the specific errors of fact or errors in application of the law in the decision being appealed; (b) the harm suffered or anticipated by the appellant, and (c) the relief sought. The scope of an appeal shall be limited to matters or issues raised in the Notice of Appeal. 5. Appeal fee per the current fee schedule, additional hourly charges may apply. In addition all hearing examiner costs will be passed through to the appellant. V. APPEAL HEARINGS PROCESS Any administrative appeal regarding the Permit shall be conducted as an open record hearing before the Hearing Examiner based on the testimony and documentary evidence presented at the open record hearing. The Hearing Examiner decision on the appeal is the City's final decision. Any party wishing to challenge the Hearing Examiner decision on this application must file an appeal pursuant to the procedures and time limitations set forth in RCW 36.7oC. An appeal challenging a DNS, an MDNS or an EIS may be included in such an appeal. If no appeal of the Hearing Examiner decision is properly filed in Superior Court within such time limit, the Decision on this permit will be final. The City's decision to issue a DNS, an MDNS or an EIS is final for this permit and any other pending permit applications for the development of the subject property. VI. INSPECTION OF INFORMATION ON THE APPLICATION Project materials including the application, any staff reports, and other studies related to the permits are available for inspection at the Tukwila Department of Community Development, 6300 Southcenter Blvd., Suite ioo, Tukwila, Washington 98188 from Monday through Friday between 8:3o a.m. and 5:0o p.m. The project planner is Moira Bradshaw, who may be contacted at 2o6-433.-369. for further information. Property owners affected by this decision may request a change in valuation for their property tax purposes. Contact the King County Assessor's Office for further information regarding property tax valuation changes. The notice board must be removed at the expiration of the appeal period if no appeal is filed. 1 t k Pace, Director Department of Community Development City of Tukwila 1 City of Tukwila Allan Ekberg, Mayor Department of Community Development - Jack Pace, Director File Number: Applicant: Request: Location: SEPA Determination: Comprehensive Plan Designation: Zone Designation: Staff: Attachments: STAFF REPORT TO THE DIRECTOR 19 May 2017 L16-0011, 42 Avenue Street Improvement Project City of Tukwila Special Permission Permit —administrative approval by the Director to allow work in the sensitive areas and approve buffer reduction associated with reconstruction of 42nd Ave S and Gilliam Creek culvert replacement. 42 Avenue S. from Southcenter Boulevard to S. 160th Street E14-0010 - Determination of Non -significance on October 20, 2014 using the 60% plans dated 8/19/2014. Low Density Residential (LDR); Medium Density Residential (MDR) and High Density Residential (HDR) Low Density Residential (LDR); Medium Density Residential (MDR) and High Density Residential (HDR) Moira Bradshaw Andrea Cummins, Urban Environmentalist A. City of Tukwila Sensitive Area Map (2017) B. 40-42 Avenue S. - Phase III :100% Progress Set (CH2M, February 21, 2017) C. Drawing of Gilliam Creek Reroute D. 5-year Monitoring Plan (CH2M, February 26, 2017) E. Wetland and Jurisdictional Ditch Assessment for the Gilliam Creek Culvert Replacement at 42nd Avenue S (CH2M, June 19, 2012) F. Photos of sensitive area buffers on South Side of SR 518 Tukwila City Hall • 6200 Southcenter Boulevard • Tukwila. WA 98188 • 206-433-1800 • Website: TukwilaWA_aov Page 2 G. Sheet 84 Landscape Plan for Wetland/Watercourse buffer south of SR 518 Findings Proposal The proposal is to reconstruct 42 Avenue S. and add curb, gutter, sidewalks, landscaping, street illumination, undergrounding of overhead utility lines, new storm water facilities and street signage. The pipe carrying the Gilliam Creek underneath 42 Avenue S. is failing and is being replaced as part of the project. The sensitive natural environment (See Exhibit A - Sensitive Areas Map of project location.) within the corridor that will be affected includes: • Gilliam Creek , a Type 3 watercourse; • several Category IV wetlands and their buffers to the east and west of the corridor in the first block south of SR 518; • a mapped Type 4 wetland and buffer & and unmapped Type 3 watercourse and buffer on the west side along the south toe of the slope that supports SR 518; and • Geologically sensitive areas in the form of Type 2 slopes within the right of way corridor; and • Significant trees. The Wetland and Jurisdictional Ditch Assessment Memo (Exhibit E) states that Southeast Ditch and Southwest Ditch along 42nd Ave S are potentially jurisdictional under the United States Army Corp of Engineers (USACE). The applicant is responsible for coordinating any permitting with the USACE in addition to complying with the City's Environmentally Sensitive Areas Chapter TMC 18.45. Exemptions from regulations For street construction projects, removal of significant trees is exempt from replacement in geologically sensitive areas per the Chapters on Environmentally Sensitive Area and Trees. (Environmentally Sensitive Areas; Areas of Potential Geologic Instability Uses, Exemptions, Alterations, and mitigation. TMC 18.45.130(B)(4)) In addition, a Tree Clearing Permit is not required for the removal of the significant trees per the following section. f. Construction and maintenance of streets and utilities within City -approved rights -of -way and easements (Tree Regulations; Permit - Exempt Activities TMC 18.54.050) Discrepancies from the Sensitive Areas Map Phone: 206-433-1800 • Email: Mavorna TukwiilaWA.eov • Website: TukwilaWA_uw ' � J Page 3 The City did a wetland analysis and determined that two wetlands shown on the City's Sensitive Areas Map do not exist. Those two wetlands are noted on Exhibit A and in the Sensitive Areas Report (Exhibit E.) Exhibit A highlights the two areas where the Project intersects with sensitive areas and/or their buffers and is not subject to exemption. The following Type 2 discretionary decisions from the Environmentally Sensitive Areas Chapter of the Zoning Code (TMC 18.45) are required: 1. Permitted Use subject to Administrative Review - Maintenance and repair of existing uses and facilities where alteration or additional fill will be placed or heavy construction equipment used will occur north and south of SR 518. (TMC 18.45.070(B)) 2. Wetland Buffer variation of Category IV wetland on the south side of SR 518 (TMC 18.45.080 (F) 3. Watercourse Buffer variation for a Type 3 watercourse on south side of SR 518 (TMC 18.45.100 (E) Decision Criteria This report provides an overview of project consistency with applicable criteria for discretionary decisions for sensitive area encroachment, followed by discussion of the mitigation plan, comments, conclusions, and recommendations. Decision Criteria Staff comment 18.45.70 B. PERMITTED USES SUBJECT TO ADMINISTRATIVE REVIEW. Sensitive Area North of SR 518 The following uses may be permitted only after administrative review and approval by the Director: 1. Maintenance and repair of existing uses and facilities where alteration or additional fill materials will be placed or heavy construction equipment used. The proposed project to reconstruct 42 Avenue S. and add curb, gutter, sidewalks, landscaping, street illumination, undergrounding of overhead utility Hines, new storm water facilities, street signage and watercourse culvert replacement is considered "maintenance and repair of existing uses and facilities" and is permitted subject to administrative review. Heavy machinery will be used to replace the existing pipe culvert. The nL_�__ 1.1.116 .. Yff/\A _ r.___ct- .,------i-. r-.,----e,—uu Page 4 equipment will be positioned in the watercourse and buffer to remove all vegetation and the existing pipe and replace it with the new arch culvert. New rocks and fill will be placed along the watercourse banks to create stable new grades to the top of the new culvert. Equipment will also be used to construct a new gravel watercourse bed. 18.45.80 F. Variation of Standard Wetland Buffer Width Sensitive Area south of SR 518 1. The Director may reduce the standard wetland buffers only where the buffer conditions are currently degraded (due to existing development within the prescribed buffer width, the presence of significant amount of invasive vegetation that impairs buffer function, and/or lack of native vegetation) on a case -by -case basis, provided the remaining buffer is enhanced and the buffer does not contain slopes 15% or greater. Where a buffer has a variable topography that includes Class I slopes on the landward half of the buffer, a buffer reduction may be allowed if the proposed reduction is in the area with the Class I slopes, and a 10-foot planted setback from the top of the slope is maintained. Further, a geotechnical review of the proposed buffer enhancement plan must determine the buffer enhancement can be implemented without destabilizing the slope. The approved buffer width shall not result in greater than a 50% reduction in width. 2. Buffer reduction with enhancement may be allowed by the Director as a Type 2 permit with an approved buffer enhancement plan prepared by a qualified wetland biologist, if: a. Additional protection to wetlands will be provided through the implementation of a buffer A Category 4 wetland and a Type 3 watercourse are located south of SR 518 and the required standard buffers are 50 feet and 80 feet respectively. The existing condition is shown on Sheet 8 of Exhibit B and photos are shown on Exhibit F. The regulatory buffer width within the project area is currently covered with grass, asphalt, concrete and is being used for utilities, property access and transportation. There is approximately 40 feet from the right of way center line to the WSDOT limited access fence line. As indicated on Sheet 8, cement concrete will be removed from in front of the WSDOT gate and HMA pavement will be removed from the current roadway shoulder. Additional clearing and grubbing will occur up to about 15 feet of the WSDOT fence line. The planned improvements shown on Sheet 15 of Exhibit B show a new driveway of asphalt in front of the Phone: 206-433-1800 • Email: MavnreTukwilaWA_anv • Wehcite• Tii1 wiIaWA anv Page 5 enhancement plan; b. The existing condition of the buffer is degraded; and c. Buffer enhancement includes, but is not limited to the following: (1) Planting vegetation that would increase value for fish and wildlife habitat or improve water quality or hydrology; (2) Enhancement of wildlife habitat by incorporating structures that are likely to be used by wildlife, including wood duck boxes, bat boxes, snags, root wads/stumps, birdhouses, and heron nesting areas; or (3) Removing non-native plant species and noxious weeds from the buffer area and replanting the area subject to 2.c. (1) above. WSDOT gate and fill to support the new 11-foot-wide sidewalk. Sheet 84 of Exhibit B shows seed/sod mix B and topsoil for any disturbed areas in the buffer outside of the improvements noted above. Seed Sod Mix B is a grass seed that is typically used to restore lawn area. The buffer enhancement plan should be revised to include native plants. See Exhibit G for the location of the remaining buffer. The current edge of roadway improvements is 15 feet from the roadway centerline. The new sidewalk edge will be 25 feet from the center line as measured from Mark 65, resulting in 10 feet additional encroachment in the buffer area. 18.45.100 E. VARIATION OF STANDARD WATERCOURSE BUFFER WIDTH Sensitive area north of SR518 1. The standard watercourse buffer may be reduced on a case -by -case basis, only where the buffer is significantly degraded due to: • existing development within the prescribed buffer width, • the presence of significant amount of invasive vegetation that impairs buffer function, and/or • lack of native vegetation), provided the remaining buffer is enhanced in accordance with an approved buffer enhancement plan that is prepared by a qualified professional, and does not contain slopes 15% or greater. Where a buffer has a variable topography that includes Class I slopes on the landward portion of the buffer, a A buffer modification will occur with approval of the alteration/reroute of the Gilliam Creek, The 80 foot required buffer will be shifted to the south due to the shifting of the watercourse. (See Sheet 30, Exhibit B) An 80-foot buffer edge is shown on Sheet 85, Exhibit B. The plan shows the ordinary high water level (OHWL) on the east side of the culvert opening. Conditions of the buffer on the south side of the Gilliam Creek include a home and yard as well as an elevated Page 6 buffer reduction may be allowed if the proposed reduction is in the area with the Class I slopes, and a 10-foot planted setback from the top of the slope is maintained. The approved buffer width shall not result in greater than a 50% reduction in width. Any buffer reduction proposal must demonstrate that it will not result in direct, indirect, or long-term adverse impacts to watercourses, and that: a. The buffer is vegetated and includes an on -site buffer enhancement plan prepared by a qualified professional, to retain existing native vegetation and install additional native vegetation to improve the buffer function; or b. If there is no significant vegetation in the buffer, a buffer may be reduced only if an on -site buffer enhancement plan is provided. The plan must include using a variety of native vegetation that improves the functlional attributes of the buffer and provides additional protection for the watercourse functions. 2. Buffers for all types of watercourses will be increased when they are determined to be particularly sensitive to disturbance or the proposed development will create unusually adverse impacts. Any increase in the width of the buffer shall be required only after completion of a watercourse study by a qualified specialist or expertthat documents the basis for such increased width. An increase in buffer width may be appropriate when: a. The development proposal has the demonstrated potential for significant adverse impacts upon the watercourse that can be mitigated by an increased buffer width; or b. The area serves as habitat for endangered, threatened, sensitive or monitor species listed by the federal government or the State. state highway and regional light rail system. The Gilliam Creek watercourse/wetland memo states that vegetation at upstream sample point met the hydrophytic vegetation criteria for wetlands but the downstream sample point did not meet the hydrophytic criteria. It further noted that non-native weeds dominate the site, such as English ivy, blackberry, and reed canarygrass. (Exhibit E) The clearing limits and buffer impacts for the culvert replacement work are shown on Sheet 9, Exhibit B. Sensitive area south of SR518 During a staff field visit in April 2017, water was observed to be flowing in a channel and wetland vegetation was present in the area. Access to the site was not possible due to a WSDOT fence so additional data is not available. At the edge of the fence line, the creek enters a pipe. After a discussion with a WSDOT Hydrologist familiar with the 518 area, it was determined that the watercourse is likely a Type 3 watercourse, as WSDOT personnel said that the water flows perennially. It is likely not fish bearing (a Type 2 watercourse), as fish barriers exist downstream. Therefore, the required buffer is 80 feet. Dhnnn• 1nA-A2z-1 unn • Fm2il• MwnerlTu4u.it %AlA eve." • %Alnheitn. Th.Lu.il. 1AIA nnv Page 7 3. Every reasonable effort shall be made to maintain the existing viable native plant life and non- invasive significant trees in the buffers. Vegetation may be removed from the buffer as part of an enhancement plan approved by the Director. Enhancements will ensure that slope stability and watercourse quality will be maintained or improved. Any disturbance of the buffers for watercourses shall be replanted with a diverse plant community of native northwest species that are appropriate for the specific site. If the vegetation must be removed, or because of the alterations of the landscape the vegetation becomes damaged or dies, then the applicant for a permit must replace existing vegetation along watercourses with comparable specimens that will restore buffer functions within five years. 4. The Director shall require subsequent corrective actions and long-term monitoring of the project if adverse impacts to regulated watercourses or their buffers are identified. The watercourse enters a pipe approximately 10 feet west of the WSDOT limited access fence line. (Sheet 8, Exhibit B) The pipe takes the water into the street drainage system and outfalls into the Gilliam Creek. The topography for the buffer area is steep along the north and south sides of the watercourse but relatively flat where the watercourse ends and the Project meet. The buffer is heavily vegetated to the west of the WSDOT fence and is gravel, pavement, and compacted dirt on the east of the fence to the Project shoulder and roadway. There is also a gate in the fence for WSDOT maintenance and access to the highway improvements. The proposal for the west edge of the street improvements is to extend the street improvements by up to 10 additional feet into the required buffer width for this watercourse and potential wetland area. No plantings are proposed through this section of street corridor. The proposed new sidewalk is 11 feet along and through the required buffer. The project plans show no work occurring to the west of the WSDOT fence line where native vegetation does exist. nMwww. '%ft A111 [AA .1*5* __._ _ ...1 .... Page 8 The curb being installed as part of the project should lessen impacts to the wetland/watercourse because vehicles will not be using the shoulder as they currently are able. The buffer enhancement plan should be revised to include native plants. See Exhibit G for the location of the where additional native plants should be planted. 18.45.110 B. Watercourse Alterations Sensitive areas south of SR 518 No alteration of the Type 3 watercourse in this area is proposed as part of the Project. Sensitive areas north of SR 518 1. Diverting or rerouting may only occur with the permission of the Director and an approved mitigation plan. 2. Any watercourse that has critical wildlife habitat, or is necessary for the life cycle or spawning of salmonids, shall not be rerouted unless it can be shown that the habitat will be improved for the benefit of the species. 3. A watercourse may be rerouted or day lighted as a mitigation measure to improve watercourse function. 4. As a condition of approval, the Director may require water quality monitoring for storm water discharges to streams, and additional treatment of storm water if water quality standards are not being met. The project includes the rerouting of the Gilliam Creek. Exhibit C shows the current watercourse's path and the proposed new path in the new arch culvert. The mitigation plan consists of replanting as shown on sheets 85, 86, 87, Exhibit B. A 5-year Monitoring Plan has been submitted and is Exhibit D. There are no critical wildlife habitats identified for the Gilliam Creek based upon a review of the State Department of Fish and Wildlife Priority Habitats Data. The watercourse will have improved function after the rerouting in that the new course will be through a culvert that is wider and taller and has a natural gravel bottom, all of which Dhnnc•'rig_A2' .1Rf1A ♦ Finaii• MavnrI Tnkuril%WAWA anv ♦ Waheito• TiakwiliWA any Page 9 5. Piping of any watercourse should be avoided. Relocation of a watercourse or installation of a bridge is preferred to piping. If piping occurs in a watercourse sensitive area, it shall be limited to requirements for stream crossings for access. a. Piping of Type 1 watercourses shall not be permitted. b. Piping may be allowed in watercourses if it is necessary for access purposes. In all watercourses, it must be demonstrated that the piping will not cause adverse impacts to fish, confine the channel or floodplain, create an entry point for road run-off, create downstream scouring, cause erosion or sedimentation, or adversely impact riparian habitat (including downstream habitat). c. Piping projects shall be performed pursuant to the following applicable standards: • The conveyance system shall be de- signed to comply with the standards in current use and recommended by the Department of Public Works and the standards of the Washington Department of Fish and Wildlife in the "Design of Road Culverts for Fish Passage" manual (2003 or as amended). • Where allowed, piping shall be limited to the shortest length possible to allow access would allow future fish passage. The size of the new pipe will increase flow capacity. Water quality will be improved over existing conditions because a storm water detention vault will be installed in S. 158th Street, and a Department of Ecology approved water quality treatment facility will be installed prior to storm water discharge to the Gilliam Creek. The water quality facility being installed just prior to the outfall into Gilliam Creek prevents primarily solids from entering the watercourse. The Gilliam Creek is currently piped under 42 Avenue S. The Project's pipe replacement work increases the size of the pipe and improves the condition of the water channel through the pipe. A bridge was not considered due to the assumed cost relative to the replacement pipe alternative. 42 Avenue S. is a street providing access and acts as a neighborhood collector. It is classified as a collector arterial. The replacement pipe creates a fish passable watercourse; enlarges the existing channel, and the street project design prevents any street run-off from entering the watercourse in such a way as to scour the AL........ '1AL A9, 1tlnn r.Y _:1. u_..__/1T_.1_._.]1_u.w - ts.-L-ei-- r._ 1 !I_.... Page 10 onto a property. (3) Where water is piped for an access point, those driveways or entrances shall be consolidated to serve multiple properties where possible, and to minimize the length of piping. (4) Watercourses under drivable surfaces shall be contained in an arch culvert using oversize or super span culverts for rebuilding of a streambed. These shall be provided with check dams to reduce flows, and shall be replanted and enhanced according to a plan. (5) All watercourse crossings shall be designed to accommodate fish passage, unless technically not feasible. (6) Water quality must be as good or better for any water exiting the pipe as for the water entering the pipe, and flow must be comparable. (7) Maintenance dredging of watercourses shall be allowed only when necessary to protect public safety, structures and fish passage and shall be done as infrequently as possible. Long-term solutions such as storm water retrofits are preferred over ongoing maintenance dredging. d. Storm water runoff shall be detained and infiltrated to preserve the watercourse channel's dominant discharge. e. All construction shall be designed to have the least adverse impact on the watercourse, buffer, and surrounding environment. f. All piping or other alterations shall be carried out or constructed during periods of low flow, or as specified by the State Department of Fish and Wildlife in accordance with an approved Hydraulics Permit. g. On properties being developed or re- developed, or when stream crossings in public or private rights -of -way are being replaced, existing culverts that carry fish -bearing watercourses or those that could bear fish (based on the criteria in WAC 222- 16-031, Washington Forest Practices Rules, and Regulations), shall be upgraded to meet the standards watercourse and adversely affect water quality. Sheet 40, Exhibit B, illustrates the check dams designed within the arch culvert. Water quality pretreatment is being added to treat storm water for the entire street roadway surface (existing and new pervious surfaces.) The new pervious surfaces being added for the entire street improvement project -11,128 square feet - will be treated using DOE approved water quality treatment facilities. Maintenance dredging is not anticipated for the new design and did not occur with the old pipe. The existing roadside ditches will be filled and any flows there will be piped. The slow release from the detention will maintain and reduce as needed flows to the watercourse. The Hydraulic Project Approval permit stipulates the culvert replacement shall only occur between June 1 and September30. Phone. MA-411-1Rnn • Finail• MavnrnT11kwilaWn any • Wahcita• TuktuilatAMA anti N. `/ Page 11 in the WDFW manual "Design of Road Culverts for Fish Passage" (2003 or as updated) if technically feasible. 18.45.110 D. Alternation Mitigation Standards Sensitive Area North of SR 518 5. The following shall be considered the minimum standards for approved stream alterations: a. Maintenance or improvement of stream channel habitat and dimensions such that the fisheries habitat functions of the compensatory stream reach or exceed that of the original stream; b. Bank and buffer configuration restored to an enhanced state; c. Channel, bank, and buffer areas replanted with native vegetation that improves the original in species diversity and density; d. Stream channel bed and biofiltration systems equivalent to (in the case of public drainage maintenance projects) and better than in the original stream (in the case of other kinds of projects); e. Original fish and wildlife habitat enhanced unless technically not feasible. 6. Relocation of a watercourse shall not result in the new sensitive area or buffer extending beyond the development site and onto adjacent property without the written agreement of the affected property owners. The channel dimensions are being enlarged such that fish habitat function will be improved over the existing conditions. The disturbed section of bank and buffer will be restored. (Sheets 85, 86, 87, Exhibit B) Native vegetation will be planted with six shrub species and eleven tree species, which exceeds the number of type of species under existing conditions. The stream channel bed will be wider than existing conditions. The watercourse and its associated regulatory buffer will be shifted approximately 14 feet south but does not extend onto different parcels, rather just farther onto the existing properties. On the west side of the project corridor, the City of Tukwila owns the southern properties. WSDOT owns the affected land on the east side of the project corridor. Table 1, Page 3, of the 5-year Monitoring Plan contains Performance Standards. The standard for plants is an 850/0 coverage in years 2-5. Successful riparian habitat nL....... ant a 1nnn r.Y_:1. u_...w __._ _ ...-�-°`-_ �.--�- _.•1_.... _._ Page 12 requires diversity of species, which is not specified in the Plan. Years 3-5 should yield a survival of at least 3 species of trees and 3 of shrubs. Weeding procedure of the 5-year monitoring Plan is that noxious weeds will be controlled using approved herbicides which is generally not allowed in streams unless knotweed is present. Under control of noxious weeds, the scope of the project work is the construction corridor. The City's property on the west side of SR 518 contains English ivy, which is an invasive plant that has the potential to take over the restoration area, extends beyond the construction corridor. The Monitoring Plan vaguely specifies that the monitoring reports would be submitted in the spring and fall of years 2,3, 4 and 5. The Plan also notes that the City of Tukwila will maintain and monitor the plantings for the 4 years remaining after turnover by the Project contractor. COMMENTS A Notice of Application was mailed on April 19, 2017 to departments and agencies with jurisdiction and to property owners and tenants within 500 feet of the project corridor pursuant to the Permit Application Types and Procedures Chapter of the Zoning Code (TMC 18.104.090.) The comment period ended on May 2, 2017 and no comment letters were received. Conclusions 1. The construction plans minimize the development impacts on the Gilliam Creek. Phone! 206-4i -1R00 • Finail• MavoreTukwilaWA any • Wphcitc+• Tial wilaWA any Page 13 2. The quality of the storm water in the Gilliam Creek will be improved because of storm water treatment facilities that will be installed as part of this project. Future potential fish habitat will be improved as the new pipe will be fish passable. 3. The public will be better protected with a pipe that is replaced and enlarged that will provide additional watercourse capacity during high flow events. 4. Aesthetically the community's natural resource will be more obvious because of the size of the new culvert. The watercourse bed will be more obvious to pedestrians and adjacent property owners and part of the buffer will be enhanced with new native species. 5. Private property owners will not be adversely impacted by the shifting of the watercourse to the south as those parcels are publicly owned. 6. North of SR 518, watercourse and wetland functions are not lost and some new function is gained due to the fish passable design for the culvert. The buffer mitigation and enhancements can potentially be destroyed by adjacent invasives on the public site (tax parcel #s 0043000270) and the Gilliam Creek's downstream reach from 42 Avenue S. to Southcenter Boulevard. 7. South of SR 518, the regulatory buffers (Exhibit G) for the sensitive areas within the WSDOT right of Way are significantly degraded east of the WSDOT fence line. The Project hardscape improvements encroach approximately 800 additional square feet farther into the sensitive area buffers than current improvements. Criteria for a buffer width variation requires enhancement of degraded conditions. Additional gains over present conditions on the south side of SR 518 would be possible with soil modification and native plantings between the east side of the fence and the west edge of the sidewalk. 8. Herbicide use as noted in Findings above is generally not allowed in stream areas. Under certain conditions it may be used to control knotweed. Approval by the City's environmental specialist should be obtained before any use within the sensitive areas. Recommendations Staff recommends approval of the Special Permission permit for work within sensitive areas and their buffers with the following conditions: 1. Revise the 5-year Monitoring Plan: • to accurately reflect appropriate protocol for herbicide use. The Plan must specify that herbicide use is only allowed with prior approval from the City's Urban Environmentalist. Dates, name of proposed chemical, reason for use, and name of the certified aquatic pesticide applicator must be sent to the Urban Environmentalist (email is acceptable.) • to state that an as -built report shall be prepared after installation and planting. Additionally, the annual monitoring report shall be prepared by a qualified expert and delivered to the City's Urban Environmentalist by Page 14 October 31 as opposed to a "spring and fall report" for each year of the five year monitoring period. 2. Revise Sheet 84 to show a native plant enhancement of the area between the WSDOT limited access fence line and the back of the Project sidewalk/driveway areas per Exhibit G. Phnna• 7A6-411-1R(ln • Finail• Mavnr(�)TukwilaWA_anv • WahcitP• TukwilaWA anv eitg of J u ftwita Department Of Community Development AFFIDAVIT OF DISTRIBUTION I, Jaclyn Adams , HEREBY DECLARE THAT: X Notice of Application Notice of Decision Notice of Public Hearing Notice of Public Meeting Determination of Non- Significance Mitigated Determination of Non - Significance Short Subdivision Agenda Determination of Significance & Scoping Notice Notice of Application for Shoreline Mgmt Permit Shoreline Mgmt Permit Board of Appeals Agenda Packet Board of Adjustment Agenda Packet Official Notice Notice of Action Other: Was emailed to each of the addresses listed/attached on this 19th day of April , 2017 Project Name: 42ND AVE S -as* c5/ //9L -/%L (.5 c( 0-ki Project Number: PL16-0009 Associated File Number (s): L16-0011 & E14-0010 Mailing requested by: MOIRA BRADSHAW Mailer's signature: .-��� _ / r AGENCY LABELS Office of Archaeology Transportation Department (WSDOT NW) Dept of Natural Resources Office of the Governor WA State Department of Commerce WA Fisheries & Wildlife, MillCreek Office WA Fisheries & Wildlife, Larry Fisher, 1775 12th Ave NW Ste 201, Issaquah WA 98027 ( ) City Clerk Office — All PUBLIC HEARINGS/MEETINGS to be emailed to Ana Le to include in Digital Records Center US Corps of Engineers Federal HWY Admin Federal Transit Admin, Region 10 Dept of Fish & Wildlife Section 1 FEDERAL AGENCIES US Environmental Protection Agency (E.P.A.) US Dept of HUD National Marine Fisheries Service Section 2 WASHINGTON STATE AGENCIES RDept of Social & Health Services. Dept of Ecology NW Regional Office, Shoreland Div. SHORELINE NOD REQUIRES RETURN RECEIPT Dept of Ecology, SEPA **Send Electronically Office of Attorney General Office of Hearing Examiner Section 3 ❑KC Boundary Review Board ❑Fire District # 11 ❑Fire District # 2 ❑KC Wastewater Treatment Div ❑KC Dept of Parks & Recreation ✓❑KC Assessor's Office ✓❑KC Watershed Coordination WRIA 9 KING COUNTY AGENCIES ❑Health Department ❑ Port of Seattle ✓❑ KC Dev & Environmental Services-SEPA Info Center ✓❑ KC Metro Transit Div-SEPA Official, Environmental Planning ❑ KC Dept of Natural Resources ❑ KC Dept of Natural Resources, Andy Levesque KC Public Library System ✓ Foster Library Renton Library Kent Library Seattle Library Section 4 SCHOOLS LIBRARIES Westfield Mall Library Tukwila School District _ Highline School District Seattle School District Renton School District 7 Century Link / Seattle City Light / Puget Sound Energy Highline Water District ✓ Seattle Planning &Dev/Water Dept Comcast ❑✓ BP Olympic Pipeline Section 5 UTILITIES Seattle Public Utilities Val-Vue Sewer District Water District # 125 T kwila City Depa Public Works Police Planning Parks & Rec Mayor Fire Finance Building Section 6 CITY AGENCIES Kent Planning Dept Renton Planning Dept City of SeaTac City of Burien City of Seattle Strategic Planning *Notice of all Seattle Related Projects Section 7 OTHER LOCAL AGENCIES * send notice of all applications on Green/Duwamish River I Duwamish River Clean Up Coalition * IHI Mu- leshoot Indian Tribe * Cultural Resources Fisheries Program Wildlife Program EDuwamish Indian Tribe * People for Puget Sound * Puget Sound Clean Air Agency Sound Transit/SEPA Puget Sound Regional Council Washington Environmental Council Futurewise Puget SoundKeeper SW KC Chamber of Commerce Tukwila Historical Society** ** send notices for a Tukwila projects which require public notice — via email to: tukwilahistsociety@tukwilahistory.org and rcwieser@comcast.net I I Seattle Times ,__,Section 8 MEDIA n Highline Times South County Journal n City of Tukwila Websi %lib%\ 111 A....I;-�ti.... D....fe... D....-e.-.-\D..L.Ii. �I..FI.-.. D........1.......\M .:1:....\A...... Public Notice Mailings For Permits SEPA MAILINGS (Comment period starts on date of mailing) Notice of Application mailed to: Department of Ecology (send checklist with Notice of Application), appl icant, other agencies as necessary, property owners and tenants within 500 feet. It is also posted on site. KC Transit Division — SEPA_Official would like to receive information about all projects that might affect transit demand. Tribes — For any application on the Green/Duwamish River, send the checklist and a full set of plans with the Notice of Application SEPA Determination mailed to Dept. of Ecology Environmental Review Section *Applicant *Other agencies as necessary (checked off on attached list) *Any parties of record * send only the staff report, site plan and the SEPA Determination Send These Documents to DOE at the time of SEPA determination: SEPA Determination Staff report SEPA Checklist (filled out by applicant) Drawings/Plans of project (site plan, elevations, etc. from PMT's) Affidavit of Distribution (notice was mailed or sent to newspaper) SHORELINE MAILINGS: Notice of Application for a Substantial Development Permit must be mailed to applicant, property owners and re sidents within 500 feet of subject property, age ncies with ju risdiction. Comments are due 3 0 days after the notice of ap plication is mailed/posted. The Notice of Application for a Shoreline Subst antial Development Permit must include a stat ement that any person desiring to submit written comments on the application or desiring to receive notification of the final decision on the application may do so within 30 days of the Notice of Application. If a hearing will be held on the application, the hearing notice must include the information that written comments may be submitted, or oral presentation made at the hearing. Notice is sent to Ecology's NW Regional Office Shorelands & Environmental Assistance Program. Shoreline Permit Notice of Decision: Mail to: (within 8 days of decision; 21-day appeal period begins date of filing with DOE) — Notice to DOE must be by return receipt requested mail (this requirement included in SSB 5192, effective 7-22-11). Department of Ecology Shorelands Section, NW Regional Office State Attorney General *Applicant *Indian Tribes *Other agencies as necessary (checked off on attached list). *Any parties of record * send only the notice of decision and staff report, site plan and the SEPA Determination Send These Documents to DOE and Attorney General: One complete packet should also be sent to Muckleshoot Indian Tribe if they commented on the project during comment period. Permit Data Sheet Shoreline Substantial Development Decision (Signed by Director) Findings (staff report or memo) Shoreline Permit Application Form (filled out by applicant) Drawings/Plans of project (site plan, elevations, etc. from PMT's) Site plan, with mean high water mark & improvements - Cross -sections of site with structures & shoreline - Grading Plan - Vicinity map SEPA determination (Signed by Director) Findings (staff report or memo) SEPA Checklist (filled out by applicant) Any background studies related to impacts on shoreline Notice of Application Affidavit of Distribution (notice was mailed) W:\\Planning\Development Review Manual\LU Application Review Process\Public Notice Procedures\Mailing\Agency Checklist ADDR-10772 Tukwila Community Member 4037 S 159TH LN TUKWILA WA 98188 ADDR-10773 Tukwila Community Member 4040 S 159TH LN TUKWILA WA 98188 ADDR-10774 Tukwila Community Member 4044 S 159TH LN TUKWILA WA 98188 ADDR-10775 Tukwila Community Member 4048 S 159TH LN TUKWILA WA 98188 ADDR-11037 Tukwila Community Member 15649 44TH AVE S TUKWILA WA 98188 ADDR-10776 Tukwila Community Member 4051 S 159TH LN TUKWILA WA 98188 ADDR-10777 Tukwila Community Member 4055 S 159TH LN TUKWILA WA 98188 ADDR-10806 Tukwila Community Member 3920 S 159TH PL 109 TUKWILA WA 98188 ADDR-10807 Tukwila Community Member 3920 S 159TH PL 110 TUKWILA WA 98188 ADDR-10808 Tukwila Community Member 3920 S 159TH PL 111 TUKWILA WA 98188 ADDR-10809 Tukwila Community Member 3920 5 159TH PL 112 TUKWILA WA 98188 ADDR-10810 Tukwila Community Member 3920 S 159TH PL 113 TUKWILA WA 98188 � ADDR-10811 Tukwila Community Member 3920 S 159TH PL 209 TUKWILA WA 98188 1 ADDR-10812 Tukwila Community Member 3920 S 159TH PL 210 TUKWILA WA 98188 ADDR-10813 Tukwila Community Member 3920 S 159TH PL 211 TUKWILA WA 98188 ADDR-10814 Tukwila Community Member 3920 S 159TH PL 212 TUKWILA WA 98188 ADDR-10815 Tukwila Community Member 3920 S 159TH PL 213 TUKWILA WA 98188 ADDR-10816 Tukwila Community Member 3920 S 159TH PL 309 TUKWILA WA 98188 ADDR-10817 Tukwila Community Member 3920 5 159TH PL 310 TUKWILA WA 98188 ADDR-10818 Tukwila Community Member 3920 S 159TH PL 311 TUKWILA WA 98188 ADDR-10819 Tukwila Community Member 3920 S 159TH PL 312 TUKWILA WA 98188 ADDR-10820 Tukwila Community Member 3920 S 159TH PL 313 TUKWILA WA 98188 ADDR-11074 Tukwila Community Member 4342 S 156TH ST TUKWILA WA 98188 ADDR-04179 Tukwila Community Member 15603 42ND AVE S A TUKWILA WA 98188 ADDR-04178 Tukwila Community Member 15603 42ND AVE S TUKWILA WA 98188 ADDR-05912 Tukwila Community Member 15123 42ND AVE S TUKWILA WA 98188 ADDR-03115 Tukwila Community Member 4211 S 160TH ST TUKWILA WA 98188 ADDR-03116 Tukwila Community Member 4217 S 160TH ST TUKWILA WA 98188 ADDR-03117 Tukwila Community Member 4225 S 160TH ST TUKWILA WA 98188 ADDR-07292 Tukwila Community Member 4217 SOUTHCENTER BLVD A07 TUKWILA WA 98188 ADDR-07293 Tukwila Community Member 4217 SOUTHCENTER BLVD A08 TUKWILA WA 98188 ADDR-07294 Tukwila Community Member 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Tukwila Community Member 15416 40TH AVE S A TUKWILA WA 98188 ADDR-03524 Tukwila Community Member 15416 40TH AVE S B TUKWILA WA 98188 ADDR-03525 Tukwila Community Member 15416 40TH AVE S C TUKWILA WA 98188 ADDR-03526 Tukwila Community Member 15416 40TH AVE S D TUKWILA WA 98188 ADDR-03529 Tukwila Community Member 15418 40TH AVE S A TUKWILA WA 98188 ADDR-03530 Tukwila Community Member 15418.40TH AVE S 8 TUKWILA WA 98188 ADDR-03531 Tukwila community Member 15418 40TH AVE S C TUKWILA WA 98188 ADDR-03532 Tukwila Community Member 15418 40TH AVE S D TUKWILA WA 98188 ADDR-03535 Tukwila Community Member 15420 40TH AVE S A TUKWILA WA 98188 ADDR-03548 Tukwila Community Member 15428 40TH AVE S A TUKWILA WA 98188 ADDR-03549 Tukwila Community Member 15428 40TH AVE S 8 TUKWILA WA 98188 ADDR-03550 Tukwila Community Member 15428 40TH AVE S C TUKWILA WA 98188 ADDR-03551 Tukwila Community Member 15428 40TH AVE S D TUKWILA WA 98188 ADDR-03554 Tukwila Community Member 15430 40TH AVE S A TUKWILA WA 98188 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40TH AVE S C TUKWILA WA 98188 ADDR-03544 Tukwila Community Member 15422 40TH AVE 5 D TUKWILA WA 98188 ADDR-03582 Tukwila Community Member 15815 40TH PL 5 302 TUKWILA WA 98188 ADDR-03583 Tukwila Community Member 15815 40TH PL S 303 TUKWILA WA 98188 ADDR-03585 Tukwila Community Member 15825 40TH PL 5 104 TUKWILA WA 98188 ADDR-03586 Tukwila Community Member 15825 40TH PL S 105 TUKWILA WA 98188 ADDR-03587 Tukwila Community Member 15825 40TH PL S 106 TUKWILA WA 98188 ADDR-03588 Tukwila Community Member 15825 40TH PL 5 107 TUKWILA WA 98188 ADDR-03589 Tukwila Community Member 15825 40TH PL 5 108 TUKWILA WA 98188 ADDR-03590 Tukwila Community Member 15825 40TH PL S 204 TUKWILA WA 98188 ADDR-03591 Tukwila Community Member 15825 40TH PL S 205 TUKWILA WA 98188 ADDR-03592 Tukwila Community Member 15825 40TH PL S 206 TUKWILA WA 98188 ADDR-03593 Tukwila Community Member 15825 40TH PL 5 207 TUKWILA WA 98188 ADDR-07237 Tukwila Community Member 4216 S 160TH ST TUKWILA WA 98188 ADDR-07238 Tukwila Community Member 4228 5 160TH ST TUKWILA WA 98188 ADDR-07270 Tukwila Community Member 4210 SOUTHCENTER BLVD A TUKWILA WA 98188 ADDR-07271 Tukwila Community Member 4210 SOUTHCENTER BLVD B TUKWILA WA 98188 ADDR-07274 Tukwila Community Member 4213 SOUTHCENTER BLVD B15 TUKWILA WA 98188 ADDR-07275 Tukwila Community Member 4213 SOUTHCENTER BLVD B16 TUKWILA WA 98188 ADDR-07276 Tukwila Community Member 4213 SOUTHCENTER BLVD B17 TUKWILA WA 98188 ADDR-07277 Tukwila Community Member 4213 SOUTHCENTER BLVD B18 TUKWILA WA 98188 ADDR-07278 Tukwila Community Member 4213 SOUTHCENTER BLVD B19 TUKWILA WA 98188 ADDR-07279 Tukwila Community Member 4213 SOUTHCENTER BLVD B20 TUKWILA WA 98188 ADDR-07280 Tukwila Community Member 4213 SOUTHCENTER BLVD B21 TUKWILA WA 98188 ADDR-07310 Tukwila Community Member 4220 SOUTHCENTER BLVD 08 TUKWILA WA 98188 ADDR-07311 Tukwila Community Member 4220 SOUTHCENTER BLVD 09 TUKWILA WA 98188 ADDR-07312 Tukwila Community Member 4220 SOUTHCENTER BLVD 10 TUKWILA WA 98188 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Member 15625 42ND AVE S 02 TUKWILA WA 98188 ADDR-04190 Tukwila Community Member 15625 42ND AVE S 03 TUKWILA WA 98188 ADDR-03606 Tukwila Community Member 15405 42ND AVE S TUKWILA WA 98188 ADDR-03607 Tukwila Community Member 15405 42ND AVE S A TUKWILA WA 98188 ADDR-03608 Tukwila Community Member 15405 42ND AVE S B TUKWILA WA 98188 ADDR-03609 Tukwila Community Member 15405 42ND AVE S C TUKWILA WA 98188 ADDR-03610 Tukwila Community Member 15405 42ND AVE S D TUKWILA WA 98188 ADDR-03612 Tukwila Community Member 15409 42ND AVE S TUKWILA WA 98188 ADDR-03613 Tukwila Community Member 15409 42ND AVE S A TUKWILA WA 98188 ADDR-03614 Tukwila Community Member 15409 42ND AVE S B TUKWILA WA 98188 ADDR-03615 Tukwila Community Member 1540942ND AVE S C TUKWILA WA 98188 ADDR-03616 Tukwila Community Member 15409 42ND AVE S D TUKWILA WA 98188 ADDR-09630 Tukwila Community Member 15625 42ND AVE S 04 TUKWILA WA 98188 ADDR-09631 Tukwila Community Member 15625 42ND AVE S 05 TUKWILA WA 98188 ADDR-09632 Tukwila Community Member 15625 42ND AVE S 06 TUKWILA WA 98188 ADDR-09633 Tukwila Community Member 15625 42ND AVE S 07 TUKWILA WA 98188 ADDR-09634 Tukwila Community Member 15625 42ND AVE S 08 TUKWILA WA 98188 ADDR-09636 Tukwila Community Member 15625 42ND AVE S 10 TUKWILA WA 98188 ADDR-09637 Tukwila Community Member 15625 42ND AVE S 09 TUKWILA WA 98188 ADDR-09639 Tukwila Community Member 15625 42ND AVE S 11 TUKWILA WA 98188 ADDR-09944 Tukwila Community Member 4014 S 158TH ST 54 TUKWILA WA 98188 ADDR-09945 Tukwila Community Member 4014 S 158TH ST 55 TUKWILA WA 98188 ADDR-09946 Tukwila Community Member 4014 S 158TH ST 56 TUKWILA WA 98188 ADDR-09948 Tukwila Community Member 4016 S 158TH ST 49 TUKWILA WA 98188 ADDR-09949 Tukwila Community Member 4016 S 158TH ST 50 TUKWILA WA 98188 ADDR-09950 Tukwila Community Member 4016 S 158TH ST 51 TUKWILA WA 98188 ADDR-09951 Tukwila Community Member 4016 S 158TH ST 52 TUKWILA WA 98188 ADDR-09953 Tukwila Community Member 4018 S 158TH ST 57 TUKWILA WA 98188 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133RD ST #2 PO BOX 18188 7111 ALLMAN AVE SE #201 4055 5 159TH LANE #19 4066 S 158TH ST 4252 S 158TH ST 4228 S 160TH ST 4255 S 160TH ST 15646 42ND AV S 15203 42ND AVE 5 PO BOX 1513 15210 42ND AVE S 4337 S 160TH ST 15223 40TH S 4066 S 152ND ST 15609 44TH AVE S 15828 43RD AV S 15631 44TH AVE S 15458 42ND AVE 5 95 S TOBIN ST 15222 42ND AV S 16023 42ND AVE S 4031 S 160TH 4033 5 160TH ST 4035 S 160TH ST 3722 SOUTHCENTER BLVD #10 NORMANDY PARK WA SEATAC WA TUKWILA WA TUKWILA WA TUKWILA WA TUKWILA WA FEDERAL WAY WA TUKWILA WA TUKWILA WA TUKWILA WA SEATTLE WA TUKWILA WA TUKWILA WA KENT WA TUKWILA WA SEATTLE WA TUKWILA WA SEATTLE WA SEATTLE WA SNOQUALMIE WA SEATTLE WA TUKWILA WA TUKWILA WA TUKWILA WA TUKWILA WA TUKWILA WA SEATTLE WA BOTHELL WA SEATTLE WA TUKWILA WA SEATTLE WA TUKWILA WA TUKWILA WA TUKWILA WA TUKWILA WA TUKWILA WA RENTON WA TUKWILA WA SEATAC WA SEATTLE WA SEATAC WA SEATAC WA TUKWILA WA 98166 98188 98188 98188 98188 98188 98003 98188 98188 98188 98188 98188 98188 98031 98188 98188 98188 98178 98118 98188 98188 98188 98188 98188 98188 98188 98188 98041 98188 98188 98188 98188 98188 98188 98188 98188 98057 98188 98188 98188 98188 98188 98177 Community Member 19529 8TH AVE NW SHORELINE WA 98188 Community Member 16017 42BD AVE S SEATAC WA 98188 Community Member 16061 42ND AVE SOUTH SEATTLE WA 98188 Community Member 16035 42ND AVE S SEATAC WA 98188 Community Member 16043 42ND AVE 5 SEATTLE WA 98188 Community Member 4068 S 160TH PL SEATAC WA 98188 Community Member 4015 S 160TH ST SEATAC WA 98133 Community Member 14035 MERIDIAN AVE N SEATTLE WA 98188 Community Member 16018 40TH PL S • SEATAC WA 98188 Community Member 4052 S 160TH PL SEATAC WA 98188 Community Member 3765 S 160TH ST SEATTLE WA 98188 Community Member 16023 40TH PL 5 SEATTLE WA 98188 Community Member 3755 S 160TH ST SEATTLE WA 98188 Community Member 16012 39TH LN S SEATAC WA 98188 Community Member 16016 39TH LN S SEATAC WA 98188 Community Member 16031 40TH PL S SEATAC WA 98188 Community Member 16036 40TH PL S SEATTLE WA 98188 Community Member 16030 40TH PL S SEATTLE WA 98188 Community Member 16023 42ND AVE 5 SEATAC WA 98188 Community Member 4031 S 160TH ST SEATAC WA 98188 Community Member 4033 S 160TH ST SEATAC WA 98188 Community Member 4035 S 160TH ST SEATAC WA 98188 Community Member 4039 S 160TH ST SEATAC WA 98188 Community Member 4037 S 160TH ST SEATAC WA 98188 Community Member 16017 42ND AVE S SEATAC WA 98188 Community Member 16061 42ND AVE 5 SEATAC WA 98188 Community Member 16035 42ND AVE S SEATAC WA 98188 Community Member 16043 42ND AVE S SEATAC WA 98188 Community Member 4068 S 160TH PL SEATAC WA 98188 Community Member 4015 S 160TH ST SEATAC WA 98188 Community Member 16024 40TH PL S SEATAC WA 98188 Community Member 16018 40TH PL S SEATAC WA 98188 Community Member 4052 S 160TH PL SEATAC WA 98188 Community Member 3765 S 160TH ST SEATAC WA 98188 Community Member 16023 40TH PL S SEATAC WA 98188 Community Member 3755 S 160TH ST SEATAC WA 98188 Community Member 16013 39TH LN 5 SEATAC WA 98188 Community Member 16016 39TH LN 5 SEATAC WA 98188 Community Member 16031 40TH PL S SEATAC WA 98188 Community Member 16036 40TH PL S SEATAC WA 98188 Community Member 16030 40TH PL S SEATAC WA 98188 ADDR# NAME ADDRESS LINE Unit number CITY/STATE ZIPCODE ADDR-09668 Tukwila Community Member 15819 42ND AVE 5 TUKWILA WA 98188 ADDR-09669 Tukwila Community Member 15827 42ND AVE S TUKWILA WA 98188 ADDR-09670 Tukwila Community Member 15837 42ND AVE S TUKWILA WA 98188 ADDR-09671 Tukwila Community Member 15857 42ND AVE S TUKWILA WA 98188 ADDR-09960 Tukwila Community Member 4020 S 158TH ST 75 TUKWILA WA 98188 ADDR-09961 Tukwila Community Member 4020 5 158TH ST 76 TUKWILA WA 98188 ADDR-09962 Tukwila Community Member 4020 S 158TH ST 77 TUKWILA WA 98188 ADDR-09963 Tukwila Community Member 4020 S 158TH ST 78 TUKWILA WA 98188 ADDR-09965 Tukwila Community Member 4022 S 158TH ST 63 TUKWILA WA 98188 ADDR-09966 Tukwila Community Member 4022 S 158TH ST 64 TUKWILA WA 98188 ADDR-09967 Tukwila Community 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Member 4066 S 158TH ST TUKWILA WA 98188 ADDR-09983 Tukwila Community Member 4028 S 159TH LN TUKWILA WA 98188 ADDR-09984 Tukwila Community Member 4032 S 159TH LN TUKWILA WA 98188 ADDR-04984 Tukwila Community Member 4209 5 158TH ST TUKWILA WA 98188 ADDR-04985 Tukwila Community Member 4240 S 158TH ST TUKWILA WA 98188 ADDR-04986 Tukwila Community Member 4241 S 158TH ST TUKWILA WA 98188 ADDR-04988 Tukwila Community Member 4252 S 158TH ST TUKWILA WA 98188 ADDR-04990 Tukwila Community Member 4258 S 158TH ST TUKWILA WA 98188 ADDR-09789 Tukwila Community Member 4011 S 152ND ST TUKWILA WA 98188 ADDR-09640 Tukwila Community Member 15625 42ND AVE S 12 TUKWILA WA 98188 ADDR-09641 Tukwila Community Member 15625 42ND AVE S 13 TUKWILA WA 98188 ADDR-09642 Tukwila Community Member 15625 42ND AVE S 14 TUKWILA WA 98188 ADDR-09643 Tukwila Community Member 15625 42ND AVE S 15 TUKWILA WA 98188 ADDR-09644 Tukwila Community Member 15625 42ND AVE S 16 TUKWILA WA 98188 ADDR-09645 Tukwila Community Member 15625 42ND AVE 5 17 TUKWILA WA 98188 ADDR-09647 Tukwila Community Member 15625 42ND AVE S 18 TUKWILA WA 98188 ADDR-09648 Tukwila Community Member 15625 42ND AVE S 19 TUKWILA WA 98188 ADDR-09649 Tukwila Community Member 15625 42ND AVE S 20 TUKWILA WA 98188 ADDR-09650 Tukwila Community Member 15625 42ND AVE S 21 TUKWILA WA 98188 ADDR-09914 Tukwila Community Member 4008 S 158TH ST 10 TUKWILA WA 98188 ADDR-09915 Tukwila Community Member 4008 S 158TH ST 11 TUKWILA WA 98188 ADDR-09916 Tukwila Community Member 4008 S 158TH ST 12 TUKWILA WA 98188 ADDR-09917 Tukwila Community Member 4008 S 158TH ST 13 TUKWILA WA 98188 ADDR-09918 Tukwila Community Member 4008 S 158TH ST 14 TUKWILA WA 98188 ADDR-09919 Tukwila Community Member 4008 5 158TH ST 15 TUKWILA WA 98188 ADDR-09920 Tukwila Community Member 4008 5 158TH ST 16 TUKWILA WA 98188 ADDR-09921 Tukwila Community Member 4008 S 158TH ST 17 TUKWILA WA 98188 ADDR-09923 Tukwila Community Member 4010 S 158TH ST 30 TUKWILA WA 98188 ADDR-09924 Tukwila Community Member 4010 S 158TH ST 31 TUKWILA WA 98188 ADDR-09925 Tukwila Community Member 4010 S 158TH ST 32 TUKWILA WA 98188 ADDR-09926 Tukwila Community Member 4010 S 158TH ST 33 TUKWILA WA 98188 ADDR-09927 Tukwila Community Member 4010 S 158TH ST 34 TUKWILAWA 98188 ADDR-09928 Tukwila Community Member 4010 S 158TH ST 35 TUKWILA WA 98188 ADDR-09930 Tukwila Community Member 4012 S 158TH ST 18 TUKWILA WA 98188 ADDR-09931 Tukwila Community Member 4012 S 158TH ST 19 TUKWILA WA 98188 ADDR-09932 Tukwila Community Member 4012 S 158TH ST 20 TUKWILA WA 98188 ADDR-09933 Tukwila Community Member 4012 S 158TH ST 21 TUKWILA WA 98188 ADDR-09934 Tukwila Community Member 4012 S 158TH ST 22 TUKWILA WA 98188 ADDR-09935 Tukwila Community Member 4012 S 158TH ST 23 TUKWILA WA 98188 ADDR-09936 Tukwila Community Member 4012 S 158TH ST 24 TUKWILA WA 98188 ADDR-09937 Tukwila Community Member 4012 S 158TH ST 25 TUKWILA WA 98188 ADDR-09938 Tukwila Community Member 4012 S 158TH ST 26 TUKWILA WA 98188 ADDR-09939 Tukwila Community Member 4012 S 158TH ST 27 TUKWILA WA 98188 ADDR-09940 Tukwila Community Member 4012 S 158TH ST 28 TUKWILA WA 98188 ADDR-09941 Tukwila Community Member 4012 S 158TH ST 29 TUKWILA WA 98188 ADDR-09943 Tukwila Community Member 4014 S 158TH ST 53 TUKWILA WA 98188 ADDR-09956 Tukwila Community Member 4018 S 158TH ST 60 TUKWILA WA 98188 ADDR-09957 Tukwila Community Member 4018 S 158TH ST 61 TUKWILA WA 98188 ADDR-09958 Tukwila Community Member 4018 S 158TH ST 62 TUKWILA WA 98188 ADDR-09844 Tukwila Community Member 4026 S 158TH LN TUKWILA WA 98188 ADDR-09845 Tukwila Community Member 4030 S 158TH LN TUKWILA WA 98188 ADDR-09846 Tukwila Community Member 4034 S 158TH LN TUKWILA WA 98188 ADDR-09847 Tukwila Community Member 4038 S 158TH LN TUKWILA WA 98188 ADDR-09848 Tukwila Community Member 4042 S 158TH LN TUKWILA WA 98188 ADDR-09849 Tukwila Community Member 4046 S 158TH LN TUKWILA WA 98188 ADDR-09888 Tukwila Community Member 4002 S 158TH ST 41 TUKWILA WA 98188 ADDR-09889 Tukwila Community 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Community Member 4270 5 158TH ST TUKWILA WA 98188 ADDR-10935 Tukwila Community Member 3900 SOUTHCENTER BLVD C01 TUKWILA WA 98188 ADDR-10936 Tukwila Community Member 3900 SOUTHCENTER BLVD CO2 TUKWILA WA 98188 ADDR-10937 Tukwila Community Member 3900 SOUTHCENTER BLVD CO3 TUKWILA WA 98188 . J ADDR-10938 Tukwila Community Member 3900 SOUTHCENTER BLVD C04 TUKWILA WA 98188 ADDR-10939 Tukwila Community Member 3900 SOUTHCENTER BLVD C05 TUKWILA WA 98188 ADDR-10940 Tukwila Community Member 3900 SOUTHCENTER BLVD C06 TUKWILA WA 98188 ADDR-10952 Tukwila Community Member 3900 SOUTHCENTER BLVD OFFICE TUKWILA WA 98188 ADDR-10954 Tukwila Community Member 4015 SOUTHCENTER BLVD B15 TUKWILA WA 98188 ADDR-10955 Tukwila Community Member 4015 SOUTHCENTER BLVD 616 TUKWILA WA 98188 ADDR-10956 Tukwila Community Member 4015 SOUTHCENTER BLVD B17 TUKWILA WA 98188 ADDR-10957 Tukwila Community Member 4015 SOUTHCENTER BLVD B18 TUKWILA WA 98188 ADDR-10958 Tukwila Community Member 4015 SOUTHCENTER BLVD B19 TUKWILA WA 98188 ADDR-10959 Tukwila Community Member 4015 SOUTHCENTER BLVD B20 TUKWILA WA 98188 ADDR-10960 Tukwila Community Member 4015 SOUTHCENTER BLVD B21 TUKWILA WA 98188 ADDR-10961 Tukwila Community Member 4015 SOUTHCENTER BLVD B22 TUKWILA WA 98188 ADDR-10973 Tukwila Community Member 4021 SOUTHCENTER BLVD C33 TUKWILA WA 98188 ADDR-10974 Tukwila Community Member 4021 SOUTHCENTER BLVD C34 TUKWILA WA 98188 ADDR-10975 Tukwila Community Member 4021 SOUTHCENTER BLVD C35 TUKWILA WA 98188 ADDR-10976 Tukwila Community Member 4021 SOUTHCENTER BLVD C36 TUKWILA WA 98188 ADDR-10977 Tukwila Community Member 4024 SOUTHCENTER BLVD TUKWILA WA 98188 J ADDR-10980 Tukwila Community Member 4025 SOUTHCENTER BLVD A01 TUKWILA WA 98188 ADDR-10981 Tukwila Community Member 4025 SOUTHCENTER BLVD A02 TUKWILA WA 98188 ADDR-10982 Tukwila Community Member 4025 SOUTHCENTER BLVD A03 TUKWILA WA 98188 ADDR-10994 Tukwila Community Member 4036 SOUTHCENTER BLVD TUKWILA WA 98188 ADDR-10995 Tukwila Community Member 15206 42ND AVE S TUKWILA WA 98188 ADDR-10996 Tukwila Community Member 15210 42ND AVE 5 TUKWILA WA 98188 ADDR-10826 Tukwila Community Member 4012 S 160TH ST TUKWILA WA 98188 ADDR-10827 Tukwila Community Member 4022 S 160TH ST TUKWILA WA 98188 ADDR-10828 Tukwila Community Member 4040 S 160TH ST TUKWILA WA 98188 ADDR-10910 Tukwila Community Member 3900 SOUTHCENTER BLVD Al TUKWILA WA 98188 ADDR-10911 Tukwila Community Member 3900 SOUTHCENTER BLVD A2 TUKWILA WA 98188 ADDR-10912 Tukwila Community Member 3900 SOUTHCENTER BLVD A3 TUKWILA WA 98188 ADDR-10913 Tukwila Community Member 3900 SOUTHCENTER BLVD A4 TUKWILA WA 98188 ADDR-10914 Tukwila Community Member 3900 SOUTHCENTER BLVD A5 TUKWILA WA 98188 ADDR-10915 Tukwila Community Member 3900 SOUTHCENTER BLVD A6 TUKWILA WA 98188 ADDR-10916 Tukwila Community Member 3900 SOUTHCENTER BLVD A7 TUKWILA WA 98188 ADDR-10917 Tukwila Community Member 3900 SOUTHCENTER BLVD A8 TUKWILA WA 98188 ADDR-10919 Tukwila Community Member 3900 SOUTHCENTER BLVD BO1 TUKWILA WA 98188 ADDR-10931 Tukwila Community Member 3900 SOUTHCENTER BLVD B13 TUKWILA WA 98188 ADDR-10932 Tukwila Community Member 3900 SOUTHCENTER BLVD B14 TUKWILA WA 98188 ADDR-10933 Tukwila Community Member 3900 SOUTHCENTER BLVD B15 TUKWILA WA 98188 ADDR-10999 Tukwila Community Member 15222 42ND AVE S A TUKWILA WA 98188 ADDR-11000 Tukwila Community Member 15222 42ND AVE S B TUKWILA WA 98188 ADDR-11001 Tukwila Community Member 15436 42ND AVE S TUKWILA WA 98188 ADDR-11002 Tukwila Community Member 15458 42ND AVE S TUKWILA WA 98188 ADDR-11003 Tukwila Community Member 15460 42ND AVE S TUKWILA WA 98188 ADDR-11004 Tukwila Community Member 15638 42ND AVE S TUKWILA WA 98188 ADDR-11005 Tukwila Community Member 15642 42ND AVE S TUKWILA WA 98188 ADDR-11006 Tukwila Community Member 15646 42ND AVE S TUKWILA WA 98188 ADDR-11007 Tukwila Community Member 15650 42ND AVE S TUKWILA WA 98188 ADDR-11008 Tukwila Community Member 15654 42ND AVE S TUKWILA WA 98188 ADDR-11009 Tukwila Community Member 15660 42ND AVE S TUKWILA WA 98188 ADDR-11010 Tukwila Community Member 15808 42ND AVE S TUKWILA WA 98188 ADDR-11011 Tukwila Community Member 15820 42ND AVE S TUKWILA WA 98188 ADDR-11012 Tukwila Community Member 15826 42ND AVE S TUKWILA WA 98188 ADDR-11013 Tukwila Community Member 15838 42ND AVE S TUKWILA WA 98188 ADDR-11014 Tukwila Community Member 15854 42ND AVE S TUKWILA WA 98188 ADDR-11015 Tukwila Community Member 15820 43RD AVE S TUKWILA WA 98188 ADDR-11016 Tukwila Community Member 15824 43RD AVE S TUKWILA WA 98188 ADDR-11017 Tukwila Community Member 15828 43RD AVE S TUKWILA WA 98188 ADDR-11018 Tukwila Community Member 15836 43RD AVE S TUKWILA.WA 98188 ADDR-11019 Tukwila Community Member 15844 43RD AVE S TUKWILA WA 98188 ADDR-11020 Tukwila Community Member 15850 43RD AVE S TUKWILA WA 98188 ADDR-11021 Tukwila Community Member 15856 43RD AVE 5 TUKWILA WA 98188 ADDR-11024 Tukwila Community Member 15605 44TH AVE S TUKWILA WA 98188 ADDR-11025 Tukwila Community Member 15609 44TH AVE S TUKWILA WA 98188 ADDR-11028 Tukwila Community Member 15621 44TH AVE S TUKWILA WA 98188 ADDR-11029 Tukwila Community Member 15625 44TH AVE S TUKWILA WA 98188 ADDR-11030 Tukwila Community Member 15629 44TH AVE S TUKWILA WA 98188 ADDR-11032 Tukwila Community Member 15631 44TH AVE S TUKWILA WA 98188 ADDR-11033 Tukwila Community Member 15633 44TH AVE S TUKWILA WA 98188 ADDR-11034 Tukwila Community Member 15635 44TH AVE S TUKWILA WA 98188 ADDR-11035 Tukwila Community Member 15635 44TH AVE S TUKWILA WA 98188 ADDR-11036 Tukwila Community Member 15635 44TH AVE S TUKWILA WA 98188 ADDR-10770 Tukwila Community Member 4033 S 159TH LN TUKWILA WA 98188 ADDR-10771 Tukwila Community Member 4036 S 159TH LN TUKWILA WA 98188 Department of Community elopment 6300 Southcenter Blvd., Ste 100 Tukwila, WA. 98188 US CORP OF ENGINEERS PO BOX 3755 SEATTLE WA 98124 - 3755 City of Tukwila Department of Community Development 6300 Southcenter Blvd., Ste 100 Tukwila, WA. 98188 FEDERAL HIGHWAY ADMIN. 711 S CAPITOL WAY SUITE 501 OLYMPIA, WA 98501 City of 'Tukwila otice of Application —April 19, 2 17 SEPA, Environmentally Sensitive Area Special Permission Southcenter BL. 42nd ,AV S. Project Project name/location: 42nd Avenue S. street improvement from Southcenter Blvd to S. 160th St., including replacement of a culvert carrying Gilliam Creek. File #: L16-0011 - Environmentally Sensitive Area Special Permission E14-0010 SEPA Planner: Moira Bradshaw 206-431-3651; moira.bradshaw(aiitukwilawa.go1 Your written comments on the project are requested and can be delivered to DCD, 6300 Southcenter Blvd., Suite 100, Tukwila, WA 98188. Comments must be received by 5:00 pm on May 3, 2017. You are receiving this notice because you are a property owner or tenant within 500ft of this project. You may request a copy of any decision, information on hearings, and your appeal rights by calling 206-431-3651. Project Description: Street improvement includes sidewalks, street illumination, undergrounding overhead utility lines, storm drainage facilities and culvert replacement containing Gilliam Creek. The existing culvert is a non -fish passable, 92-foot long, 3-foot diameter concrete culvert & will be replaced with a 146-foot long, 16-foot wide by 8-foot, corrugated metal fish passable culvert. 42nd AV S. Project City of Tukwila Notice of Application —April 19, 2017 SEPA, Environmentally Sensitive Area Special Permission Project name/location: 42nd Avenue S. street improvement from Southcenter Blvd to S. 160th St., including replacement of a culvert carrying Gilliam Creek. File #: L16-0011 - Environmentally Sensitive Area Special Permission E14-0010 SEPA Planner: Moira Bradshaw 206-431-3651; moira.bradshaw@tukwilawa.go' Your written comments on the project are requested and can be delivered to DCD, 6300 Southcenter Blvd., Suite 100, Tukwila, WA 98188. Comments must be received by 5:00 pm on May 3, 2017. You are receiving this notice because you are a property owner or tenant within 500ft of this project. You may request a copy of any decision, information on hearings, and your appeal rights by calling 206-431-3651. Project Description: Street improvement includes sidewalks, street illumination, undergrounding overhead utility lines, storm drainage facilities and culvert replacement containing Gilliam Creek. The existing culvert is a non -fish passable, 92-foot long, 3-foot diameter concrete culvert & will be replaced with a 146-foot long, 16-foot wide by 8-foot, corrugated metal fish passable culvert. t-ity OI 1 UKWIIa Department of Communitvelopment 6300 Southcenter Blvd., Ste 100 Tukwila, WA. 98188 City of Tukwila Department of Community Development 6300 Southcenter Blvd., Ste 100 Tukwila, WA. 98188 City of Tukwila 0 Notice of Application —April 19, 2017 SEPA, Environmentally Sensitive Area Special Permission r r ,>t,In mg sr maw r Sunthccntcr Bt.. 42nd AV S. Project Gilliam (reek Project name/location: 42nd Avenue S. street improvement from Southcenter Blvd to S. 160th St., including replacement of a culvert carrying Gilliam Creek. File #: L16-0011 - Environmentally Sensitive Area Special Permission E14-0010 SEPA Planner: Moira Bradshaw 206-431-3651; moira.bradshaw@tukwilawa.gol Your written comments on the project are requested and can be delivered to DCD, 6300 Southcenter Blvd., Suite 100, Tukwila, WA 98188. Comments must be received by 5:00 pm on May 3, 2017. You are receiving this notice because you are a property owner or tenant within 500ft of this project. You may request a copy of any decision, information on hearings, and your appeal rights by calling 206-431-3651. Project Description: Street improvement includes sidewalks, street illumination, undergrounding overhead utility lines, storm drainage facilities and culvert replacement containing Gilliam Creek. The existing culvert is a non -fish passable, 92-foot long, 3-foot diameter concrete culvert & will be replaced with a 146-foot long, 16-foot wide by 8-foot, corrugated metal fish passable culvert. Suuthcenter BI.. 42nd AV S. Project S. 160 ST City of Tukwila Notice of Application —April 19, 2017 SEPA, Environmentally Sensitive Area Special Permission Gilliam ( Project name/location: 42nd Avenue S. street improvement from Southcenter Blvd to S. 160th St., including replacement of a culvert carrying Gilliam Creek. File #: L16-0011 - Environmentally Sensitive Area Special Permission E14-0010 SEPA Planner: Moir a Bradshaw 206-431-3651; moira.bradshaw@tukwilawa.go' Your written comments on the project are requested and can be delivered to DCD, 6300 Southcenter Blvd., Suite 100, Tukwila, WA 98188. Comments must be received by 5:00 pm on May 3, 2017. You are receiving this notice because you are a property owner or tenant within 500ft of this project. You may request a copy of any decision, information on hearings, and your appeal rights by calling 206-431-3651. Project Description: Street improvement includes sidewalks, street illumination, undergrounding overhead utility lines, storm drainage facilities and culvert replacement containing Gilliam Creek. The existing culvert is a non -fish passable, 92-foot long, 3-foot diameter concrete culvert & will be replaced with a 146-foot long, 16-foot wide by 8-foot, corrugated metal fish passable culvert. i City of Tukwila Re----e27%)/ Allan Ekberg, Mayo Public Works Department - Bob Giberson, Director INTERDEPARTMENTAL MEMORANDUM TO: Moira Bradshaw FROM: Cyndy Knighton DATE: March 6, 2017 RE: 42nd Avenue S Phase III Project L 16-0011 Incomplete Application Response Project No. 99410303 RECEIVE MAR 07 2017 Community Development On March 17, 2016, you issued a memorandum of incompleteness on the Special Permission permit application on the 42nd Avenue S Phase III project. As you are aware, Public Works and DCD staff have been working on developing a mutually acceptable revision to the project that includes changes to address the incomplete application determination. This memorandum is the response to the incomplete determination issued last year. We have identified six comments to respond to upon review of your incompleteness memo. I will summarize our understanding of your comments here but the attached marked up version of your original memo (Exhibit 1) may aid you in understanding how the divisions were made. Comment 1. Storm Drainage Facility Location The storm drainage facility that was proposed and shown in the design drawings, is no longer located in stream buffer of Gilliam Creek. Five options were developed to ensure the storm drainage facility is either removed or design would meet applicable requirements identified in Tukwila Municipal Code (TMC) 18.45. After working with the City of Tukwila Public Works department, the Selected Option was chosen. The Selected Option would construct a stormwater vault in the roadway on S 158th Street just west of the intersection with 42nd Avenue S. The vault would be located about 1,300 feet (0.25 mile) south of the Gilliam Creek well outside of the stream buffer. Stormwater discharge to the creek would be through existing discharge locations, and no new discharge outfalls would be constructed. The project increases the amount of impervious surface and the quantity of stormwater would also increase; however, the project includes pretreatment which improves the water .quality,_ discharged to Gilliam Creek over existing conditions and the flow rate is also slowed down compared to existing conditions which reduces the potential for any stream scour. Comment 2. Outfall change to Gilliam Creek As noted above, stormwater discharge to Gilliam Creek does not require any new discharges. There would be an increase in stormwater as a result of increased impervious surfaces. However, the water from the project is a very small portion of the tributary and the stormwater will be treated and the detention vault serves to slow the flow rate. These changes serve to reduce impacts to Gilliam Creek. L 16-0011 Incomplete Application Response March 6, 2017 Page 2 Comment 3. Previous Studies The recommendation in the previous studies was not carried forward because the studies are old (15 and 22 years old) and the recommendation identified would be difficult to implement given the changes in the regulatory requirements over the past 22 years. Permitting agencies and Muckleshoot Tribe would not permit in -stream ponds because of the fish passage issues and the required in water work. Additional, the recommendation identified was focused on detention during storm events, to minimize impacts downstream which is no longer required given the detention facility that has been constructed since the last report was prepared. The detention facility to the south was constructed about 10 years ago. The recommendation does not address stormwater treatment and detention that is required as part of the proposed project and a storm water facility would still be required even if the identified recommendation had been constructed. The bio-swale identified in the recommendation is not an option for stormwater treatment for the area because the parcel is too small and a bio-swale large enough to provide required retention would require the demolition of the single-family residence or additional work within the stream buffer which would not be allowed per TMC 18.45.070.B.3. Comment 4. Watercourse Sensitive Area Study/Mitigation Plan The storm drainage facility is no longer located within the Gilliam Creek buffer. There are no changes proposed in this area and as noted above under Comment 1, the storm drainage detention facility has been moved and is now within a vault underneath S 158th Street. Gilliam Creek currently flows through a 92-foot long 36-inch culvert that is currently failing. The original construction of the 36-inch culvert resulted in the diversion of the creek and a watercourse alteration which has constrained the creek (Photo 1) and results in backups during storm events. Because the existing culvert is failing and needs to be replaced, if the project moved forward as routine maintenance/repair then the project would replace the existing 36-inch culvert with a similar sized culvert. The areas north and south of the culvert have also been affected by past construction. The area to the north of the creek and west of 42nd Avenue S includes a large rock retaining wall constructed to protect residential development. To the east are a number of large boulders placed in the streambed to minimize erosion of the bank. Areas to the south of the creek included mowed grass lawns and non-native vegetation. Photo 1— Existing Culvert Conditions Instead of replacement, the project will construct a new 16-foot wide and 8-foot high arch culvert with a natural bottom consisting of streambed gravel that will be fish passable and restore the natural watercourse in the culvert area. As shown in Exhibit 2, the flow lane of the creek will be 10-feet wide and the streambed gravels will allow the creek to define a channel through the culvert and restore the r.nfi rr. nroov cull -try"; est. NNrti.i..1.. Nunn .....a TL_ L16-0011 Incomplete Application Response March 6, 2017 Page 3 3 feet thick and coarse streambed bands will be installed in the channel to provide additional stability of the streambed gravel. The only alteration to the existing watercourse of Gilliam Creek will be at the ends of the new fish - passable culvert. The creek relocation is needed to be able to place the new culvert without impacting the slope to the north. This would require regrading, vegetation removal and potentially the acquisition and displacement of a residential development to construct the culvert and not alter from its current course in the existing 36-inch culvert. These additional impacts would have resulted in additional project costs and would not result in any improvements in watercourse function. To minimize these impacts, the culvert is shifted between 12 to 14 feet south of the existing culvert (Exhibit 3). Approximately 25 feet of the upstream channel and 50 feet of the downstream channel will be reconstructed because of the shift. The design of the culvert has been approved by federal and state permitting agencies (U.S. Army Corps of Engineers and Washington Department of Fish and Wildlife) as well as the Muckleshoot Tribe (Attachment A). As noted in TMC 18.45.110.B.3: A watercourse may be rerouted or day -lighted as a mitigation measure to improve watercourse function. Because the reroute of the creek with the new fish passable culvert improves watercourse function no additional mitigation should be required. Even though the proposed project does reroute the watercourse through the culvert location only, the increased width, height, and streambed materials improves the watercourse function as well as meeting fish passage requirements. The culvert has been designed to meet the latest WDFW standards identified in the WDFW Water Crossing Design Guidelines (2013). As noted above under the response to Comment 1, the project will improve water quality due to treatment. There is an increase in the amount of stormwater, but the detention vault makes flow rates discharged to the creek slower than existing conditions which reduces impacts. The water from the project is a very small portion of the tributary and the stormwater will be treated and will not adversely impact Gilliam Creek. The construction of the fish passable culvert does not degrade the functions of the watercourse or the buffer, but will result in overall improvements to the watercourse and buffer. The project includes development of a landscape plan including the creek buffer areas that will be disturbed because of the construction of the culvert. Attachment B (Landscape Plan) includes a Monitoring Plan that delineates responsibilities and performance measures for 5-years of monitoring to ensure revegetation success. Additional details on the landscape plan are identified in Comment 6. The following provides information on how the mitigation standards identified in 18.45.110 are met: A. Bankfull width measurements were performed in the field. Measurements were conducted by a fisheries biologist including a WDFW fisheries biologist. The information was used along with the latest WDFW guidelines to design a fish passable culvert. The new culvert includes a 16-foot wide channel compared to the existing 36-inch wide pipe. The new culvert includes streambed gravel and is designed consistent with the WDFW Water Crossing Design Guidelines (2013). As • L 16-0011 Incomplete Application Response March 6, 2017 Page 4 B. The streambed through the culvert and approximately 25 feet of the upstream channel and 50 feet of the downstream channel would be reconstructed consistent with WDFW Water Crossing Design Guidelines (2013). Area in the stream buffer disturbed by construction of the culvert will be replanted per the landscape plan prepared for the project which will include planting of native species. C. The stream and adjacent areas disturbed by construction will be replanted. Areas disturbed will be replanted with native vegetation. A landscape plan developed for the project provides additional details. The Monitoring Plan includes monitoring performance measures for revegetation success (Attachment B). D. The stream channel associated with the fish passable culvert replaces the existing 36-inch culvert. All stream reconstruction will be done to restore the existing degraded stream channel in the area of the existing culvert to an improved condition over existing and result in improved stream channel functions. E. The fish passable culvert includes fish habitat improvements not associated with the existing culvert and the widening of the culvert improves the stream functions compared to the existing conditions. Note: the text in 'the letter refers to TMC 18.45.090(1-6), with regards to watercourse alteration; however, the code citation refers to wetland uses, alterations, and mitigation. There are no wetlands affected by the culvert replacement. Comment 5. Tree Permit Criteria The following provides text to address the information identified in TMC 18.54.140 as noted in the comment letter. 2a. Strict compliance with the provisions of this code may jeopardize project feasibility or reasonable use of property. • The project avoided significant trees to the extent possible and trees to remain will be protected during construction. Tree retention has been incorporated to the extent possible. The project specification requires the contractor to have a certified arborist onsite during cut and fill staking operations to determine if additional trees will be impacted with construction or if additional tree protection measure are required. Where significant trees, cannot be avoided, replacement calculation have been made and tree replacement values have been included in the creek buffer planting. The landscape plan mitigates the impacts associated with the removal of significant trees by planting within the "creek buffer. Construction of the new culvert requires vegetation removal including six (6) significant trees. The planting of replacement trees, shrubs and seed would enhance the aesthetic and ecological conditions in the current stream buffer that includes primarily non-native vegetation. 2b. Proposed vegetation removal, replacement, and any mitigation measures proposed, are consistent with the purpose and intent given in this chapter. • The proposed plantings will help to restore native vegetation in the creek buffer and will be L16-0011 Incomplete Application Response March 6, 2017 Page 5 replanted includes areas with non-native vegetation and the replanting will restore and improve the ecological function of the stream buffer. 2c. The granting of the exception or standard reduction will not be detrimental to the public welfare or injurious to other property in the vicinity. • The exception will occur on properties owned by the City of Tukwila and the planting of native vegetation more suited to the site conditions will help to improve the stream buffer area compared to existing conditions which include areas of mowed grasses and other non-native plant species. 3b. The size of the site or project cannot support the number of required replacement trees, and off -site tree planting is proposed which furthers the goals of this chapter and other City policies. • Off -site tree planting is not proposed as part of the project. Replacement of significant trees occurs within the project area. The landscape plan provides details for tree and shrub spacing. The ,5-year monitoring plan includes measures to maximize survival rate and replanting as necessary. 3c. On -site planting of all required replacement trees is not feasible, and the project includes an equivalent contribution in funds and/or labor and materials for off -site tree planting as jointly agreed by the applicant and Director. • The project will plant on -site and no off -site tree planting or contribution in funds and/or labor and materials is required. All planting will be done on -site. 3d. Smaller -sized replacement plants are more suited to the species, site conditions, and to the purposes of this chapter, and are planted in sufficient quantities to meet the intent of this chapter. • Given site constraints of limited right-of-way and slopes within the creek buffer, the landscape plan proposes the use of smaller -sized replacement plants rather than street trees to increase the survivability, sustainability, and ability of species to adapt to the site conditions. 24 trees are required, 52 (#3 size) trees are proposed, an 117% increase. In addition, 146 shrubs and native seeding are also proposed. The landscape plan provides additional details. Comment 6. Landscape Plan The landscape plan has been updated to provide additional details. Based upon the comments received the following have been incorporated into the landscape plan: • Soil preparation depths have been modified and include a minimum of 6-inches for shrubs and 12-inches for trees. In addition, 4 inches of topsoil and 3 inches of fine compost will support the native seed. • Plantings of smaller plants is still proposed in the landscape plan. The contractor will install a temporary irrigation system and will operate and maintain the planting through the 1 year L 16-0011 Incomplete Application Response March 6, 2017 Page 6 establishment period. After the first year, the City of Tukwila will maintain and monitor the planting for the remaining 4 years. • The 5-year monitoring plan is outlined in a tech memo dated February 26, 2017. The plan addresses the buffer area plantings and include bi-annual reports to ensure performance measures are met. The selected contractor will follow the monitoring requirements for the first year and the City of Tukwila will be responsible for meeting the performance measures for the subsequent years 2 through 5. • The landscape architect has worked directly with the City of Tukwila staff on the development of the landscape plans to address plant species and spacing. Coordination includes addressing requests on drought tolerant native seed cover that is able to stabilize the soils. I trust that this memorandum and the associated attachments answer all your comments and concerns. We will be advertising this project for construction starting March 21, 2017 with the anticipation of opening bids on April 11, 2017. This permit will not be approved at the time of bid opening but we will continue working with you to ensure the permit is in -hand prior to work commencing on the project. Please let me know as soon as possible if you still require additional information. Exhibit 1 Interdepartmental Memorandum To: Cyndy Knighton From: Moira Bradshaw Date: Marcy 17, 2016 Subject: L 16-0011 Incomplete Application Proposed Sensitive Area Use Per the TMC, an administrative decision is required for most work in sensitive areas and their buffers (Special Permission Watercourse Alteration (TMC 18.45.110.) The City must make an administrative quasi-judicial decision regarding the watercourse alteration due to the culvert replacement as well as any other modifications within the watercourse area or its buffer. The storm drainage facility must be removed from the watercourse buffer, per previous comments on the review drawings. Only new surface water discharges to sensitive areas or their buffers from surface water management structures may be allowed. Specifically, "Bioswales and —dispersion outfalls are the only storm water facilities allowed.in watercourse buffers." Please clarify the change in outfalls to the Creek, which may need a description of how any new 2 discharge meets the clean water standards of RCW 90.48 and WAC 173.200 and 201 and does not adversely affect water level fluctuations or adversely affect watercourse habitat and flow _conditions relative to the existing rate. (18.45.070 (B) (2) The proposed Stormwater detention facility is not considered an Essential Utility because of the above reference to storm drainage facilities. The more specific applies and the City may not fall back on the more general reference of "essential utilities." The provisions of the Sensitive Areas Chapter (TMC 18.45) are minimum requirements in their interpretation and application and are to be liberally construed to serve the purposes of the Chapter. Buffer reductions may be allowed subject to the findings of a sensitive area study and if the existing buffer is degraded and a mitigation plan is created that proposes improvements. Required materials A copy of the Gilliam Creek Design report (Perteet 1994) was included in the application but the figures are cut off, if relevant, please provide complete graphics to explain the proposal. The Gilliam Creek Basin Stormwater Management Plan (Herrera 2001) recommends two in -stream ponds and a biofiltration Swale, which duplicates recommendation from 1994 Report and were recommendations to mitigate new Stormwater from the proposed 42 Av. Design. The Stormwater Design Criteria and Stormwater Management Concept (CH2MHill, March 2013.) was also submitted and provides an analysis and recommendation that is not represented in the previous studies nor in the current application. Please provide updated supporting material. Exhibit 1 Although a lot of work has been done, there are some missing items in order to meet the standards of a watercourse sensitive area study: Description of buffer size, per the SA Chapter; conditions such as topographic considerations, existing vegetation types and density, habitat features, watercourse edges, presence of invasive species ) and functions; description of habitat conditions, ; determination of the degree of hazard and risk from the proposal both on the site and on adjacent properties; an assessment of the probable cumulative impacts to the sensitive area and their buffers and other properties resulting from the proposal. Please refer to Sensitive Areas Special Studies (TMC 18.45.040 B.) The specifics of the study can be discussed based upon the final storm water solution. There is the need for a Mitigation Plan (See 18.45.100 © Mitigation Plan Content) and a narrative responding to the criteria for altering the watercourse. The Mitigation Plan needs to include a description of reasonable efforts to apply mitigation sequencing to avoid minimize and mitigate impact to the sensitive areas, plans for adequate mitigation to offset any impacts; and recommendations for maintenance, short term and long term monitoring and contingency. (18.45.040 (B) (b)(4)(5)(6)(7)(8)(9) and (10)) The Plan must show how water quality treatment, erosion control pollution reduction, wildlife and fish habitat and general watercourse quality would be improved. Please see Mitigation Plan content for components of a Plan: 18.45.110© (3) The mitigation minimum standards that are not clear are whether the bank and buffer configurations restored to an enhanced state. A narrative is needed that addresses the criteria for watercourse alteration (TMC 18.45.090(1-6.) Proposed Tree removal in Sensitive Areas: Please provide a written response to the following Tree Permit criteria Permit Exceptions TMC 18.54.140): 2. a. Strict compliance with the provisions of this code may jeopardize project feasibility or reasonable use of property. b. Proposed vegetation removal, replacement, and any mitigative measures proposed, are consistent with the purpose and intent given in this chapter. c. The granting of the exception or standard reduction will not be detrimental to the public welfare or injurious to other property in the vicinity. 3. In addition to the above criteria, the Director may also consider any of the following in reviewing an exception request: b. The size of the site or project cannot support the number of required replacement trees, and off -site tree planting is proposed, which furthers the goals of this chapter and other City policies. c. On -site planting of all required replacement trees is not feasible, and the project includes an equivalent contribution in funds and/or labor and materials for off -site tree planting as jointly agreed by the applicant and Director. Pape 2 of: Exhibit 1 d. Smaller -sized replacement plants are more suited to the species, site conditions, and to the purposes of this chapter, and are planted in sufficient quantities to meet the intent of this chapter. In general, the 90% drawings are too vague and too broad in scope for us to evaluate the effectiveness and impact of the proposed replanting. The soil preparation depths are not adequate for either the lawn or trees; a minimum of 6" for small plants and 12" for trees will be required. In addition, while the smaller size of plant replacement can be supported, it comes at a higher maintenance cost and die off, so more than a 10% increase over existing trees will be required. On the sensitive slopes, the proposed use of lawn requires mowing and watering for maintenance and success. If the lawn is not a continuation of an existing condition, the disturbed areas should be planted with drought tolerant natives or ground cover that is able to spread and stabilize the soils. Please refer us to the topographic plan with 2 foot contours for the affected areas and the specifications for the seed mixes. fF 42N0 AVE S. PROPOSED GRADE EX 1rG EX 4'G REFERENCE NUMBER 579 APPLICANT NAME: City of Tukwila PROPOSED PROJECT: 40th - 42nd Avenue South - Phase III LOCATION: Tukwila, WA SHEET 8 OF 10 DATE: July 2014 t24• SS JOINT ELECTRICAL/ COMM. OUCTBANK 16'DIA CMP (10 GAUGE) MULTI -PLATE ARCHES CULVERT EX tr w �` EX18T)NG 36" CONC CULVERT STREAMBED GRAVE. (36' THICK) CULVERT SECTION NOTES: 1. GRAVEL BORROW SWILL BE PER WSDOT STD SPECIFICATION 9.03.14(1). 2. STREAMBED GRAVEL SHALL CONSIST A WELL BLENDED MIXTURE Of 12' COBBLE (APPROX 80%), ONE MAN STREAM BOULDER (APPROX 10%), AND TYPO MAN STREAM BOULDER (APPROX 10%), PER WSDOT STD SPECFICATION 9-03.11(2) AND 403.11(3). Exhibit 2 — Cross section of proposed Gilliam Creek culvert F L16-00011 SPECIAL PERMISSION - INCOMPLETE APPLICATION RESPONSE TO COMMENTS Attachment A — USACE and WDFW Permit Approvals City of Tukwila BID AND CONTRACT DOCUMENTS AND SPECIFICATIONS FOR CITY OF TUKWILA 40TH — 42ND AVENUE SOUTH — PHASE III City of Tukwila Department of Public Works 6300 Southcenter Blvd., Suite 100 Tukwila, WA 98188 March 2017 VOLUME 1 of 2 CONTRACT PROVISIONS FOR 40T" - 42ND AVENUE SOUTH — PHASE III 42' AVENUE SOUTH FROM S. 160T" STREET TO SOUTHCENTER BOULEVARD (VOLUME 1 OF 2) Project No. [#] MARCH 2017 Prepared for: CITY OF TUKWILA 6200 Southcenter Boulevard Tukwila, Washington 98188 Prepared by: 1100 112th Avenue NE Bellevue, WA 98004 CITY OF TUKWILA 6200 Southcenter Boulevard Tukwila, Washington 98188 Tukwila City Council Members Dennis Robertson, President Joe Duffie Kathy Hougardy Kate Kruller De'Sean Quinn Verna Seal Thomas McLeod City Administration Allan Ekberg , Mayor David Cline, City Administrator Christy O'Flaherty, CMC, City Clerk Bob Giberson, P.E., Director of Public Works Approved for construction by: City Engineer Robin Tischmak, P.E. Consulting Engineer Signature Date Robin Tischmak, P.E., City Engineer Pat Brodin, P.E., Public Works Operations Manager Bob Giberson, P.E., Director of Public Works 40T" — 42ND AVENUE SOUTH — PHASE III TABLE OF CONTENTS Call for Bids Information for Bidders Page 1-1 1-2 Proposal P-1 Bid Schedule P-3 Proposal Signature Sheet P-17 Bid Security P-19 Non -Collusion Declaration P-20 Responsible Bidder Determination Form P-21 Proposed Equipment and Labor Schedule P-24 Proposed Subcontractors P-25 Agreement Form Payment and Performance Bond Amendments to the Standard Specifications C-1 C-3 A-1 Special Provisions SP-1 Appendices A Geotechnical Data Report B Potholing Plans C City of Tukwila Standard Plans and Details D Prevailing Wage Rates E Utility Undergrounding Standards and Details F PSE Gas Plans (work by others) G HPA Permit H City of Tukwila Standard Forms I-1 CALL FOR BIDS NOTICE IS HEREBY GIVEN that sealed bids will be received by the City of Tukwila, Washington at the office of the City Clerk, in Tukwila City Hall, 6200 Southcenter Boulevard, Tukwila, Washington 98188, up to the hour of 5:00 p.m. on [Day], [Month & Date], 20[YR]. Bids will be opened and publicly read aloud at 10:00 a.m. on [NEXT DAY], [Month & Date], 20[YR] for: 40T" — 42ND AVENUE SOUTH — PHASE III PROJECT NO. [#] The Work to be performed within [165] calendar days from the date of Notice to Proceed consists of furnishing all materials, equipment, tools, labor, and other work or items incidental thereto for: Construction of approximately 2,250 linear feet of street improvements within the right-of-way of 42nd Avenue South - S. 160th Street to Southcenter Boulevard, including Ibut not limited to clearing and grubbing, grading, drainage, paving with HMA, installing curb, gutter and sidewalks, undergrounding of overhead power and communications, sanitary sewer, water main, soldier pile and structural earth retaining walls, landscaping, signing, striping, illumination, installation of a fish passible culvert and other work necessary to complete the Work as specified and shown in the Contract Documents. Each bid shall be in accordance with the bid documents available free of charge on-line through Builders Exchange of Washington, Inc. at http://www.bxwa.com. Click on: "bxwa.com", "Posted Projects"; Public Works"; "City of Tukwila", and "Project Bidding". Bidders are encouraged to "Register as a Bidder" in order to receive automatic e-mail notification of addenda and to be placed on the "Bidders List". This service is provided free of charge to Prime Bidders, Subcontractors and Vendors bidding this project. Contact Builders Exchange of Washington at (425) 258-1303, should you require further assistance. Informational copies of any available maps, plans, specifications, and subsurface information are on file for inspection in the office of the Tukwila City Engineer, at the Public Works Department. All bid proposals shall be submitted according to the Information for Bidders and be accompanied by a bid proposal deposit in the form of a cash deposit, certified or cashier's check, postal money order, or surety bond made payable to the City of Tukwila, for a sum not less than five percent (5%) of the amount of such bid, including sales tax. Should the successful bidder fail to enter into such contract and furnish satisfactory payment and performance bonds within the time stated in the specifications, the bid deposit/bond shall be forfeited to the City of Tukwila. The City of Tukwila hereby notifies all bidders that it will affirmatively ensure that in any contracts entered into pursuant to this advertisement, minority business enterprises will be afforded full opportunity to submit bids in response to this invitation and will not be discriminated against on the grounds of race, color, sex or national origin in consideration for an award. The City reserves the right to reject any and all bids or waive any informalities in the bidding and make the award as deemed to be in the best interest of the City. CITY OF TUKWILA Christy O'Flaherty, CMC City Clerk Published Seattle Times: [DATES TO BE PUBLISHED] Published Daily Journal: [DATES TO BE PUBLISHED] 1-2 INFORMATION FOR BIDDERS The following supplements the information in the Call for Bids: 1. Pre -Bid Conference A pre -bid conference will be held at Tukwila City Hall, 6200 Southcenter Boulevard, Tukwila, Washington on [DAY], [MONTH] [DATE], 20[YR] at [TIME] [a.m./p.m.] All potential bidders are strongly encouraged to attend. This will be your only opportunity to ask direct questions related to the project. Information from the pre -bid conference will not be made available to bidders who do not attend. The Engineer will transmit to all prospective Bidders of record such addenda as Engineer considers necessary in response to questions arising at the conference. Oral statements may not be relied upon and will not be binding or legally effective. 2. Examination of Plans, Specifications, and Site Before submitting his bid, the Contractor shall carefully examine each component of the Bid Documents prepared for the Work and any other available supporting data so as to be thoroughly familiar with all the requirements. However, the Owner or Consulting Engineer will not assume responsibility for variations of subsoil quality or condition at locations other than places shown and at the time investigation was made (if any). The availability of this information shall not relieve the Bidder of his duty to examine the project site nor of any other responsibility under the Contract. The Bidder shall make an alert, heads -up, eyes -open reasonable examination of the project site and conditions under which the Work is to be performed, including but not limited to: current site topography, soil and moisture conditions; underground obstructions; the obstacles and character of materials which may be encountered; traffic condiitions; public and private utilities; the availability and cost of labor; and available facilities for transportation, handling, and storage of materials and equipment. See Section 1-05.14 of the Special Provisions for identification of any other work that is to be performed on or near the project site by others. A Geotechnical Data Report has been provided in Appendix A for review. 3. Property Issues — Permits, Easements, Licenses to Construct All bidders shall base their bids upon full restoration of all property within the right-of-way and easements, and wherever Bidder will have 'license to construct'. The easements and license to construct documents that have been acquired are available for inspection and review. The Bidder is advised to review the conditions of the permits, easements, and licenses to construct, as he shall be required to comply with all conditions at no additional cost to the Owner. All other permits, licenses, etc., shall be the responsibility of the Bidder. The Bidder shall comply with the requirements of each. [INSERT LANGUAGE HERE IF ANY RIGHT-OF-WAY, EASEMENT, OR RIGHT -OF -ENTRY ISSUES STILL PENDING, AND HOW CONTRACTOR WILL HAVE TO ADJUST SCHEDULE, ETC. Information for Bidders 1-3 ALSO IN SEPARATE PARAGRAPH, DISCUSS ANY SPECIFIC PERMIT ISSUES — WHICH ONES OWNER IS FURNISHING VS. WHAT CONTRACTOR MUST OBTAIN, ETC.] 4. Interpretation of Bid Documents The Bidder shall promptly notify Owner of any discovered conflicts, ambiguities, or discrepancies in or between, or omissions from the Bid Documents. Questions or comments about these Bid Documents should be directed to the attention of: Cyndy Knighton, 6200 Southcenter Boulevard, Tukwila, WA 98188, phone (206) 433-0179. Questions received less than two (2) days prior to the date of bid opening may not be answered. Any interpretation or correction of the Bid Documents will be made only by addendum, and a copy of such addendum will be mailed or delivered to each person receiving a set of such Bid Documents. The Owner will not be responsible for any other explanations or interpretations of the Bid Documents. No oral interpretations of any provision in the Bid Documents will be made to any Bidder. 5. Special Schedule Considerations/Sequencing of Work [INSERT AS NEEDED] 6. Wages Washington State Prevailing Wage rates apply to this project. The Owner requires strict adherence to, and will monitor compliance with, applicable wage rates. Weekly Certified Payrolls are required. All Contractors are responsible for payment of prevailing wages to all "workers employed directly upon the site of the work" under the contract. All Contractors shall provide weekly certified payroll reports that are complete and comply with State law and the conditions set out in the Contract Documents. The Contractor is also responsible for the compliance to the above requirements of all Subcontractors and Sub -Subcontractors. All contractors shall complete and provide all Owner required documentation and forms. Non- compliance with the above requirements will result in denial of the Contractor's application for payment. No exceptions will be made. 7. State Sales Tax (see also APWA GSP 1-07.2 in Special Provisions) The work on this contract is to be performed upon lands whose ownership obligates the Contractor to pay State sales tax. The Contractor shall include Washington State retail sales taxes in the various unit and lump sum bid prices of the contract, in compliance with State Department of Revenue Rule 171. These retail sales taxes shall include those the Contractor pays on purchases of materials, equipment, and supplies used or consumed in doing the work. All tax payments shall be based on actual quantities used, regardless of quantities stated in the Proposal. The work on this contract is to be performed upon lands whose ownership obligates the Contractor to pay State sales tax on portions of the project work and obligates the Contractor to collect State sales tax from the Contracting Agency on other portions of the project, as follows: 1. The provisions of State Department of Revenue Rule 171 apply to Schedules A and B and the Contractor shall include Washington State sales taxes in the various bid items. Information for Bidders 1-4 2. The provisions of State Department of Revenue Rule 170 apply to Schedules C, D and E, and the Contractor shall collect retail sales tax from the Contracting Agency. Note: in both cases, sales tax for purchase or rental of tools, machinery, equipment, or consumable supplies not integrated into the project, shall be included in the bid item prices. 8. Bidding Checklist All bids shall be submitted on the exact forms provided in these Bid Documents, and listed below. Failure to submit any of these forms is grounds for rejection of the bid. The only exception is if the bidder follows the directions for Bids Submitted on Computer Printouts, following the bid proposal forms. Sealed bids for this proposal shall be submitted as specified in the Call for Bids. Each bid must be submitted in a sealed envelope bearing on the outside the name and address of the Bidder, and must be clearly marked with the name and number of the project for which the bid is submitted: BID FOR 40TH — 42ND AVENUE SOUTH — PHASE III All bids will remain subject to acceptance for ninety (90) days after the day of the bid opening. a. Proposal — Bidders must bid on all items contained in the Proposal. The omission or deletion of any bid item will be considered nonresponsive and shall be cause for rejection of the bid. b. Bid Security/Bid Bond — Bid Bond is to be executed by the Bidder and the surety company unless bid is accompanied by a cash deposit, certified or cashier's check, or postal money order. The amount of this security/bond shall be not less than five percent (5%) of the total bid, including sales tax, if applicable, and may be shown in dollars. Surety must be authorized to do business in the State of Washington, and must be on the current Authorized Insurance List in the State of Washington per Section 1-02.7 of the Standard Specifications. The Bid Security form included in these Contract Provisions MUST be used; no substitute will be accepted. If an attorney -in -fact signs bond, a certified and effectively dated copy of their Power of Attorney must accompany the bond. The deposit of the successful Bidder will be returned provided Bidder executes the Agreement, furnishes satisfactory Payment and Performance Bond covering the full amount of work, and provides evidence of insurance coverage, within ten (10) days after Notice of Award. Should Bidder fail or refuse to do so, the Bid Deposit or Bond shall be forfeited to the City of Tukwila as liquidated damages for such failure. The Owner reserves the right to retain the security of the three (3) lowest bidders until the successful Bidder has executed the Agreement and furnished the bond. Information for Bidders 1-5 c. Non -Collusion Affidavit — Must be filled in, signed, and notarized. d. Responsible Bidder Determination Form e. Proposed Equipment and Labor Schedule f. Proposed Subcontractors, if required Regarding forms d, e, and f, the Owner reserves the right to check all statements and to judge the adequacy of the Bidder's qualifications, and to reject Bidder as not responsible based on this information. 9. Contract Checklist The following forms are to be executed by the successful Bidder after the Contract is awarded. The Agreement and Payment and Performance Bond are included in these Bid Documents and should be carefully examined by the Bidder. a. Agreement — Two (2) copies to be executed by the successful Bidder. b. Payment and Performance Bond — Two (2) copies to be executed by the successful Bidder and its surety company. This bond covers successful completion of all work and payment of all laborers, subcontractors, suppliers, etc. The bond continues in effect at ten percent (10%) of the total price bid for one year after final acceptance of the Work. The bond form included in these Bid Documents MUST be used; no substitute will be accepted. If an Attorney -in -fact signs bond, a certified and effectively dated copy of their Power of Attorney must accompany the bond. c. Certificates of Insurance — To be executed by an insurance company acceptable to the Owner, on ACORD Forms. Required coverages are listed in Section 1-07.18 of the Special Provisions (APWA GSP). The Owner and Consulting Engineer retained by Owner shall be named as "Additional Insureds" on the insurance policies. The above bid and contract documents must be executed by the Contractor's President or Vice - President if a corporation, or by a partner if a partnership. In the event another person has been duly authorized to execute contracts, a copy of the resolution or other minutes establishing this authority must be attached to the Proposal and Agreement documents. P-1 PROPOSAL (unit price) Contractor's Name Contractor's State License No. City of Tukwila Project No. [#] To the Mayor and City Council City of Tukwila, Washington The undersigned (Bidder) hereby certifies that he personally examined the location and construction details of Work outlined in the Contract Documents for the City of Tukwila (Owner) project titled 40th — 42nd Avenue Souh — Phase III, which project includes but is not limited to: Bid Schedule A — Public Roadway Improvements Construction of approximately 2,250 linear feet of street improvements within the right-of-way of 42nd Avenue South - S. 160th Street to Southcenter Boulevard, including but not limited to clearing and grubbing, grading, drainage, paving with HMA, installing curb, gutter and sidewalks, retaining walls, landscaping, signing, striping, illumination and other work necessary to complete the Work as specified and shown in the Contract Documents. Bid Schedule B — Gilliam Creek Culvert Replacement Construction of a fish passible culvert approximately 150' long x 16' wide to replace the existing 36" diameter pipe culvert where Gilliam Creek crosses 42nd Ave S. Bid Schedule C — Power and Communications Undergroundinq Constructing power and joint communications ductbanks to underground the overhead power and communications lines along 42nsd Ave S. from S. 160th Street to the SR-518 overpass. Utility owners include Seattle City Light (SCL), Century Link, Comcast and ZAYO. This work also includes installing conduit for private services to 21 homes along 42nd Ave S. including surface restoration. Bid Schedule D — Valley View Sewer Installation of new sewer main and manholes for Valley View Sewer, including temporary sewer bypass system required during construction, and other work as shown in the contract documents. Bid Schedule E — King County Water District 125 Construction of new water mains and fire hydrants for King County Water District 125, including capping and removal of a portion of the existing water main prior to the culvert installation, installing new water main and fire hydrants, removing an existing Meter vault and installing a new meter vaults, replacing several existing water services, and other work as shown in the contract documents. Proposal P-2 and has read and thoroughly understands these Documents which govern all Work embraced in this improvement and the methods by which payment will be made for said Work, and thoroughly understands the nature of said Work; and hereby proposes to undertake and complete all Work embraced in this improvement in accordance with these Contract Documents and at the following schedule of rates and prices. The Bidder understands that the quantities mentioned herein are approximate only and are subject to increase or decrease, and hereby proposes to perform all quantities of work as either increased or decreased in accordance with the Contract Documents. As evidence of good faith, (check one) 0 bid bond or 0 cash, 0 cashier's check, 0 certified check, or 0 postal money order made payable to the City of Tukwila equal to five percent (5%) of the Total Bid Price is attached hereto. Bidder understands that, should this offer be accepted by Owner within ninety (90) calendar days after the day of Bid Opening and the Bidder fails or refuses to enter into an Agreement and furnish the required Payment and Performance Bond and liability insurance within ten (10) calendar days after Notice of Award, the Contract shall be null and void and the Bid Deposit or Bond accompanying this Proposal shall be forfeited and become the property of Owner as liquidated damages, all as provided for in the Bid Documents. Bidder shall attain Physical Completion of all Work in all respects within 165 working days from the date stated in the written Notice to Proceed. If the work is not completed within this time period, Bidder shall pay liquidated damages to Owner as specified in Section 1-08.9 of the Standard Specifications for every calendar day work is not Physically Complete after the expiration of the Contract time stated above. In addition, Bidder shall compensate Owner for actual engineering inspection and supervision costs and any other legal fees incurred by Owner as a result of such delay. 40th - 42nd Ave South - Phase III Bid Schedule A - Public Roadway Improvements Project No. [#] Note: Unit prices for all items, all extensions, and the total amount bid must be shown. Where conflict occurs between the unit price and the total amount specified for any item, the unit price shall prevail, and totals shall be corrected to conform thereto. For Schedule A, include applicable Sales Tax in the various Unit and Lump Sum prices. Item No. Sec. No. Item Description Quantity Unit Unit Price Amount Al 1-09 Mobilization 1 LS A2 1-09 Resolution of Utility Conflicts 1 FA $ 20,000.00 A3 1-09 Field Office Building 1 LS A4 1-02 Type B Progress Schedule, min. Bid $5,000.00 1 LS A5 1-04 Minor Change 1 FA $ 15,000.00 A6 1-05 Record Drawings, min. Bid $5,000.00 1 LS A7 1-05 Roadway Surveying 1 LS A8 1-07 Utility Potholing 1 FA $ 15,000.00 A9 1-10 Flaggers and Spotters, min. Bid $50.00 per hour 2200 HR A10 1-10 Other Traffic Control Labor, min. Bid $50.00 per hour 500 HR All 1-10 Traffic Control Supervisor, min. Bid $50.00 per hour 320 HR Al2 1-10 Construction Signs Class A 250 SF A13 1-10 Sequential Arrow Sign 750 HR A14 1-10 Portable Changeable Message Sign 970 HR A15 1-10 Outside Agency Uniformed Police Flagging Labor 1 FA $ 3,000.00 A16 2-01 Clearing and Grubbing 2.0 AC A17 2-01 Roadside Cleanup 1 FA $ 5,000.00 A18 2-02 Remove Existing Drainage Structure 18 EA A19 2-02 Remove Existing Storm Sewer Pipe 1800 LF A20 2-02 Removal of Structure and Obstructions 1 LS A21 2-02 Removal and Relocation of Existing Private Improvements 1 FA $ 8,000.00 A22 2-02 Pavement Sawcutting 3810 LF A23 2-02 Remove Hydrant 2 EA Item No. Sec. No. Item Description Quantity Unit Unit Price Amount A35 2-03 Roadway Excavation Incl. Haul 2100 CY A36 2-03 Gravel Borrow Incl. Haul 4405 CY A37 2-09 Shoring or Extra Excavation Class B 16165 SF A38 2-09 Structure Excavation Class A Incl. Haul 250 CY A39 2-12 Construction Geotextile for Permanent Erosion Control 150 SY A40 2-12 Construction Geotextile for Separation 1110 SY A41 2-12 Construction Geotextile for Underground Drainage 240 SY A42 4-04 Crushed Surfacing Top Course 865 TON A43 4-04 Crushed Surfacing Base Course 2431 TON A44 4-04 Ballast 33 CY A45 5-04 HMA Cl. 1/2-inch PG 64-22 1125 TON A46 5-04 HMA Cl. 1-inch PG 64-22 1411 TON A47 5-04 Pavement Repair Excavation Incl. Haul 300 SY A48 5-04 HMA for Pavement Repair Cl. 1/2-inch PG 64-22 205 TON A48a 5-04 Planing Bituminous Pavement 314 SY A49 5-05 Cement Concrete Pavement 40 CY A50 6-10 Single Sloped Concrete Barrier 149 LF A51 7-01 Gravel Backfill for Drain 27 CY A52 7-01 Underdrain Pipe 6 In. Diam. 285 LF A53 7-01 Underdrain Pipe 8 In. Diam. 181 LF A54 7-01 Drain Pipe 6 In. Diam. 70 LF A55 7-01 Drain Pipe 8 In. Diam. 100 LF A56 7-04 Testing Storm Sewer Pipe 3352 LF A57 7 04 Corrugated polyethlyene Storm Sewer Pipe 8 In. Diam. 38 LF A58 7-04 Corrugated polyethlyene Storm Sewer Pipe 12 In. Diam. 942 LF A59 7-04 Corrugated polyethlyene Storm Sewer Pipe 18 In. Diam. 929 LF A60 7-04 Corrugated polyethlyene Storm Sewer Pipe 24 In. Diam. 927 LF Item No. Sec. No. Item Description Quantity Unit Unit Price Amount A61 7-04 CI. V Reinf. Conc. Storm Sewer Pipe 30 In. Diam. 36 LF A62 7-04 Ductile Iron Storm Sewer Pipe 8 In. Diam. 89 LF A63 7-04 Ductile Iron Storm Sewer Pipe 12 In. Diam. 316 LF A64 7-04 Ductile Iron Storm Sewer Pipe 18 In. Diam. 75 LF A65 7-05 Adjust Catch Basin 5 EA A66 7-05 Concrete Inlet 25 EA A67 7-05 Catch Basin Type 1 28 EA A68 7-05 Catch Basin Type 1 with Circular Frame and Cover 1 EA A69 7-05 Catch Basin Type 1 L 6 EA A70 7-05 Catch Basin Type 2, 48In. Diam. 20 EA A71 7-05 Catch Basin Type 2, 541n. Diam. With Flow Restrictor 1 . EA A72 7-05 Detention Vault 1 LS A73 7-05 Connection to Drainage Structure 12 EA A74 7-05 Structure Excavation Class B Incl. Haul 2800 CY A75 7-05 Abandon and Fill Pipe 307 LF A76 7-05 Through Curb Inlet 2 EA A77 7-14 Hydrant Assembly 5 EA A78 7-14 Resetting Existing Hydrant 4 EA A79 7-21 Stormwater Pre -Treatment Unit A 1 LS A80 7-21 Stormwater Treatment Unit B 1 LS A81 7-21 Stormwater Treatment Unit C 1 LS A82 8-01 SWPPP Preparation And General Permit Compliance 1 LS A83 8-01 Portable Storage Tank 1 LS A84 8-01 ESC Lead 45 DAY A85 8-01 Erosion/Water Pollution Control 1 FA $ 25,000.00 A86 8-01 High Visibiliy Fence 1350 LF A87 8-01 Silt Fence 620 LF Item No. Sec. No. Item Description Quantity Unit Unit Price Amount A88 8-01 Check Dam 168 LF A89 8-01 Inlet Protection 18 EA A90 8-01 Biodegrable Erosion Control Blanket 360 SY A91 8-02 Topsoil Type A (4" Depth) 0.49 ACRE A92 8-02 Topsoil Type A (12" Depth) 290 SY A93 8-02 Seed/Sod (MIX B) 0.49 ACRE A94 8-02 Bark or Wood Chip Mulch (3" Depth) 290 SY A95 8-02 PSIPE, Berberous Thunbergii'Crimson Pygmy' (#3) 102 EA A96 8-02 PSIPE, Rosa Rugosa'Showy Pavement' (#3) 90 EA A97 8-02 PSIPE, Acer Circinatum (1.5" Caliper) 2 EA A98 8-02 PSIPE, Rhphiolepis X Deiacourii 'Georgia Petite' 73 EA A99 8-02 PSIPE, Physocarpus Opulifoius'Podarus' (#3) 60 EA A100 8-04 Cement Conc. Traffic Curb and Gutter 4312 LF A101 8-04 Extruded Curb, Type 6 176 LF A102 8-04 Integral Curb Wall 20 SF A103 8-06 Cement Conc. Driveway Entrance 770 SY A104 8-09 Raised Pavement Marker Type 1 16 Hundred A105 8-09 Raised Pavement Marker Type 2 5 Hundred A106 8-11 Raising Existing Beam Guardrail 38 LF A107 8-12 Black Vinyl Coated Chain Link Fence Type 3 109 LF A108 8-12 Black Vinyl Coated Chain Link Fence Type 4 266 LF A109 8-12 Black Vinyl Coated Double 14' Chain Link Gate 1 EA A110 8-13 Adjust Monument 2 EA A111 8-14 Cement Conc Sidewalk 2510 SY A112 8-14 Cement Conc Curb Ramp, Type A 2 EA A113 8-14 Cement Conc Curb Ramp Type Parallel A 8 EA A114 8-14 Paved Buffer Zone 290 SY Item No. Sec. No. Item Description Quantity Unit Unit Price Amount A115 8-15 Quarry Spalls 25 TON A116 8-18 Mailbox Support, Type 1 8 EA A117 8-18 Mailbox Support, Type 2 3 EA A118 8-20 Illumination System Complete 1 LS A119 8-21 Permanent Signing 1 LS A120 8-22 Plastic Stop Line 50 LF A121 8-22 Plastic Line (4") 433 LF A122 8-22 Plastic Wide Lane Line (8") 4062 LF A123 8-22 Plastic Crosswalk Line 110 SF A124 8-22 Plastic Traffic Arrow 2 EA A125 8-22 Plastic Sharrow Symbol 2 EA A126 8-23 Temporary Pavement Markings 4000 LF A127 8-24 Rock for Rock Wall 320 TON A128 8-24 Backfill for Rock Wall 120 CY A129 8-24 Compacted Till 70 CY A130 8-26 Adjust Valve Box to Grade 40 EA Schedule A Total 40th - 42nd Ave South - Phase III Bid Schedule B - Gilliam Creek Culvert Replacement Project No. [#] Note: Unit prices for all items, all extensions, and the total amount bid must be shown. Where conflict occurs between the unit price and the total amount specified for any item, the unit price shall prevail, and totals shall be corrected to conform thereto. For Schedule B, include appllicable Sales Tax in the various Unit and Lump Sum prices. Item No. Sec. No. Item Description Quantity Unit Unit Price Total Price B1 1-04 Minor Change 1 LS B2 2-01 Clearing and Grubbing 0.4 AC B3 2-02 Remove Existing Pipe 94 LF B4 2-03 Roadway Excavation Incl. Haul 4200 CY B5 2-03 Gravel Borrow Incl. Haul 3700 CY B6 2 09 Shoring or Extra Excavation Cl. A for Culvert Footing 1 LS B7 6-02 Conc. Class 4000 for Culvert Footing 167 CY B8 6-02 St. Reinf. Bar for Culvert Footing 24000 LBS B9 7-03 St. Str. Plate Arch 10 Gage 16 ft. Span 146 LF B10 7-03 Steambed Bounders - One Man 85.8 TON 1311 7-03 Steambed Bounders - Two Man 85.8 TON B12 7-03 Steambed Cobbles 675 TON B13 7-03 Coarse Band 3 EA B14 7-06 Temporary Stream Diversion 1 LS B15 8-01 High Visibiliy Fence 250 LF B16 8-02 Topsoil Type A (4" Depth) 0.19 ACRE B17 8-02 Seed, Fertilize & Mulching (Native Seed Mix A) 0.19 ACRE B18 8-02 Fine Compost (3" depth) 0.19 ACRE B19 8-02 PSIPE, Salix Lasiandra (#3) 4 EA B20 8-02 PSIPE, Salix Scouleriana (#3) 4 EA B21 8-02 PSIPE, Betula Papyrifera (#3) 4 EA B22 8-02 PSIPE, Fraxinus Latifolia (#3) 4 EA B23 8-02 PSIPE, Thuja Plicata (#3) 4 EA Item No. Sec. No. Item Description Quantity Unit Unit Price Total Price B24 8-02 PSIPE, Tsuga Heterophylla (#3) 4 EA B25 8-02 PSIPE, Alnus Rubra (#3) 4 EA B26 8-02 PSIPE, Acer Circinatum (#3) 4 EA B27 8-02 PSIPE, Acer Macrophyllum (#3) 4 EA B28 8-02 PSIPE, Pseudotsuga Menziesii (#3) 4 EA B29 8-02 PSIPE, Pinus Contorta (#3) 4 EA B30 8-02 PSIPE, Cornus Sericea (#3) 21 EA B31 8-02 PSIPE, Sambucus Racemosa (#3) 21 EA B32 8-02 PSIPE, Myrica Californica (#3) 21 EA B33 8-02 PSIPE, Ribes Sanguineum (#3) 23 EA B34 8-02 PSIPE, Holodiscus Discolor (#3) 24 EA B35 8-02 PSIPE, Symphoricarpos Albus (#3) 21 EA B36 8-03 Temporary Irrigation System 1 LS B37 8-37 Settlement Monitoring 1 LS Schedule B Total $ 40th - 42nd Ave South - Phase III Schedule C - Power and Communications Undergroundinq Project No. [#] Note: Unit prices for all items, all extensions, and the total amount bid must be shown. Where conflict occurs between the unit price and the total amount specified for any item, the unit price shall prevail, and totals shall be corrected to conform thereto. For Schedule C, do not include applicable Sales Tax in the various Unit and Lump Sum prices, but instead add Sales Tax to the end sum as shown. Item No. Sec. No. Item Description Quantity Unit Unit Price Total Price C1 1-04 Minor Change 1 FA $ 15,000.00 C2 8-35 Franchise Utility Coordination 1 FA $ 10,000.00 C3 8-35 Utility Potholing 1 FA $ 15,000.00 Joint Communications Ductbank C4 8-32 Structure Excavation Class B Incl. Haul for Joint Trench 1207 CY C5 8 32 Shoring or Extra Excavation Class B for Joint Trench 6790 SF C6 8-32 Joint Trench Pipe Zone Bedding, Including Haul 397 CY C7 8-32 Joint Trench Backfill 2022 CY C8 8-32 Install 444-LA Vault —Comcast 18 EA C9 8-32 Install Conduit Pipe 4 In. Diam. — Comcast 5286 LF C10 8-34 Conduit Riser, 4-inch - Comcast 4 EA C11 8-32 Install H1730H Handhole — CenturyLink 8 EA C12 8-32 Install 264-TA — CenturyLink 4 EA C13 8-32 Install Conduit Pipe 4 In. Diam. — CenturyLink 3548 LF C14 8-32 Core Drill of Existing Vault - CenturyLink 14 EA C15 8-32 Install 444-LA Vault —Zayo 3 EA C16 8-32 Install Conduit Pipe 4 In. Diam. — Zayo 1546 LF SCL Electrical Ductbank C17 8 33 Structure Excavation Class B Incl. Haul for SCL Duct Bank 1266 CY C18 8-33 Shoring or Extra Excavation Class B for SCL Duct Bank 9080 SF C19 8-33 Handhole, 233-LA - SCL 3 EA C20 8-33 Vault, 444-LA — SCL 6 EA C21 8-33 Vault, 507-LA - SCL 3 EA Item No. Sec. No. Item Description Quantity Unit Unit Price Total Price C22 8-33 Vault, 577-LA - SCL 7 EA C23 8-33 Vault, 712-LA - SCL 1 EA C24 8-33 Vault, 712-CLX - SCL 2 EA C25 8-33 Vault, Pad 10 - SCL 1 EA C26 8-33 Conduit, PVC, 4 Inch - SCL 12250 LF C27 8-33 Conduit, Fiberglass, 5 Inch -SCL 6960 LF C28 8-33 Conduit Bend, RGS, 4 Inch, Misc. Degree, 144" or 150 EA C29 8-33 Conduit Bend, RGS, 4 Inch, Misc. Degree, 48" Rad 3 EA C30 8-33 Conduit Riser, 4-inch 8 EA C31 8-33 Conduit Riser, 5-inch 4 EA C32 8-33 Core Drill of Existing Vault - SCL 14 EA C33 8-33 High Strength-FTB - SCL 390 CY C34 8-33 Low Strength-FTB - SCL 2626 CY C35 8-33 Guard Post (Bollard) 2 EA Private Service Joint Utility Trench C36 8-34 Install Conduit Pipe 2 In. Diam. — Comcast Private Service 1820 LF C37 8-34 Install Conduit Pipe 2 In. Diam — Century Link Private Service 1750 LF C38 8-34 Conduit Pipe 3 In. Diam — Seattle City Light Private Service 1930 LF C39 8-34 Private Service Address 15857 1 LS C40 8-34 Private Service Address 15837 1 LS C41 8-34 Private Service Address 15827 1 LS C42 8-34 Private Service Address 15819 1 LS C43 8-34 Private Service Address 4066 1 LS C44 8-34 Private Service Address 15645 1 LS C45 8-34 Private Service Address 15625 1 LS C46 8-34 Private Service Address 15603 1 LS C47 8-34 Private Service Address 15854 1 LS C48 8-34 Private Service Address 15838 1 LS Item No. Sec. No. Item Description Quantity Unit Unit Price Total Price C49 8-34 Private Service Address 15826 1 LS C50 8-34 Private Service Address 15820 1 LS C51 8-34 Private Service Address 15660 1 LS C52 8-34 Private Service Address 15654 1 LS C53 8-34 Private Service Address 15650 1 LS C54 8-34 Private Service Address 15646 1 LS C55 8-34 Private Service Address 15642 1 LS C56 8-34 Private Service Address 15638 1 LS C57 8-34 Private Service Address 15460 1 LS C58 8-34 Private Service Address 15458 1 LS C59 8-34 Private Service Address 15436 1 LS C60 8-34 Property Restoration for Private Services 1 FA Schedule C Subtotal Sales Tax @ 9.5% $ Schedule Total $ 40th - 42nd Ave South - Phase III Schedule D - Valley View Sewer Project No. [#] Note: Unit prices for all items, all extensions, and the total amount bid must be shown. Where conflict occurs between the unit price and the total amount specified for any item, the unit price shall prevail, and totals shall be corrected to conform thereto. For Schedule D, do not include applicable Sales Tax in the various Unit and Lump Sum prices, but instead add Sales Tax to the end sum as shown. Item No. Sec. No. Item Description Quantity Unit Unit Price Total Price D1 Traffic Control 1 LS D2 Shoring & Trench Safety Systems 433 LF D3 Temporary Erosion and Sedimentation Control 1 LS D4 Dewatering 1 LS D5 Potholing 5 EA D6 Landscape and Misc. Restoration 1 LS D7 Gilliam Temporary Gravity Wastewater Bypass 1 LS D8 Other Temporary Wastewater Bypasses 1 LS D9 60-inch Saddle Manhole (E17-77) 1 LS D10 48-inch Standard Manhole (F17-21, F17-22) 2 EA D11 72-inch Standard Manhole with Extra Channeling Work (E17-51) 1 LS D12 72-inch Standard Manhole (E17-53) 1 LS D13 60-inch Shallow Manhole (E17-76) 1 LS D14 72-inch Shallow Manhole (E17-49, E17-52) 1 EA D15 8-inch SDR 35 PVC Pipe 172 LF D16 8-Inch AWWA C900 DR 25 PVC Pipe 45 LF D17 18-inch SDR 35 PVC Pipe 32 LF D18 30-inch class 52 Ductile Iron Pipe with Ceramic Epoxy Lining 184 LF D19 Controlled Density Fill Pipe Encasement 110 CY D20 Crushed Surfacing Top Course Compacted Trench Backfill 1283 LF D21 Crushed Surfacing Base Course Compacted Trench Backfill 1283 LF D22 Gilliam Creek Crossing Crushed Surfacing Top Course Compacted Trench Backfill 995 LF D23 Foundation Material 356 TON Item No. Sec. No. Item Description Quantity Unit Unit Price Total Price D24 Gravel Driveway Restoration 1 LS D25 10-inch HMA Patch with 8-inch Crushed Rock Base 144 SY D26 Record Drawings and Post Construction Survey 1 LS Schedule D Subtotal Sales Tax @ 9.5% $ Schedule D Total $ $ 40th - 42nd Ave South - Phase III Schedule E - King County Water District 125 Project No. [#] Note: Unit prices for all items, all extensions, and the total amount bid must be shown. Where conflict the unit price and the total amount specified for any item, the unit price shall prevail, and totals shall conform thereto. For Schedule E, do not include applicable Sales Tax in the various Unit and Lump Sum prices, but Sales Tax to the end sum as shown. occurs between be corrected to instead add Item No. Sec. No. Item Description Quantity Unit Unit Price Total Price El Trench Safety 1 LS E2 Install 12" Line Valve at Tee 2 EA E3 Remove & Dispose of Ex. 12" D.I. Pipe 100 LF E4 Remove & Dispose of Ex. 8" D.I. Pipe 45 LF E5 CL 52, 12" D.I. Pipe & Fittings 100 LF E6 8" D.I., Restrained Joint Pipe & Fittings 40 LF E7 Connect to Existing Water Main 4 EA E8 Remove and Abandon Existing SPU Meter Vault 1 LS E9 Construct New SPU Meter Vault 1 LS E10 Extend/Relocate Existing Fire Hydrant 4 EA El 1 Install New Fire Hydrant Assembly 3 EA E12 Replace 1" Short Side Water Service 2 EA E13 Replace 1" Long Side Water Service 4 EA E14 Replace 1 1/2" Short Side Water Service 3 EA E15 Adjust Valve box to Grade 12 EA E16 Plug & Block Existing Main 2 EA E17 Crushed Surfacing Top Course 225 TN Schedule E Subtotal SalesTax@9.5% $ Schedule E Total $ TOTAL OF SCHEDULES Schedule A brought forward $ Schedule B brought forward $ Schedule C brought forward $ Schedule D brought forward $ Schedule E brought forward $ TOTAL BID PRICE $ P-17 Bids Submitted on Computer Printouts Bidders, at their option, in lieu of hand writing in the unit prices in figures in ink on the Bid forms above, may submit an original computer printout sheet with their bid, as long as the following requirements are met: 1. Each sheet of the computer printout must contain the exact same information as shown on the hard - copy bid form — Project Name, Schedule Name, column headings — in the order shown, totals, etc. 2. The computer printout of the Bid Proposal must have the exact certification language shown below, signed by the appropriate officer of the firm. 3. If a computer printout is used, the bidder must still execute that portion of the unit price Bid form which acknowledges the Bid Guaranty, Time of Completion, and all addenda that may have been issued, etc. If any of these things are missing or out of order, the bid may be rejected by the Owner. The unit and lump sum prices shown on acceptable printouts will be the unit prices used to tabulate the Bid and used in the Contract if awarded by the City. In the event of conflict between the two, unit Bid prices will prevail over the extended (Total) prices. If the Bid submitted by the bidder contains both the form on these Bid Proposal sheets, and also a computer printout, completed according to the instructions, the unit bid prices shown on the computer printout will be used to determine the bid. Put this certification on the last sheet of the Bid computer printout, and sign: (YOUR FIRM'S NAME) certifies that the unit prices shown on this complete computer print-out for all of the bid items contained in this Proposal are the unit and lump sum prices intended and that its Bid will be tabulated using these unit prices and no other information from this print-out. (YOUR FIRM'S NAME) acknowledges and agrees that the total bid amount shown will be read as its total bid and further agrees that the official total Bid amount will be determined by multiplying the unit Bid prices shown in this print-out by the respective estimated quantities shown on the Bid form then totaling all of the extended amounts. Signed: Title: Date: Proposal P-18 By signing below, Bidder acknowledges receipt and understanding of the following Addenda to the Bid Documents: Addendum No. Date of Receipt Addendum No. 1 3 2 4 Date of Receipt NOTE: Failure to acknowledge receipt of Addenda may be considered as an irregularity in the Bid Proposal and Owner reserves the right to determine whether the bid will be disqualified. By signing below, Bidder certifies that Bidder has reviewed the insurance provisions of the Bid Documents and will provide the required coverage. It is understood that Owner may accept or reject all bids. The Surety Company which will furnish the required Payment and Performance Bond is of (Name) (Address) Bidder: Signature of Authorized Official: Printed Name and Title: Address: Circle One: Individual / Partnership / Joint Venture / Corporation Phone No.: State of Incorporation: Date: This address and phone number is the one to which all communications regarding this proposal should be sent. NOTES: 1. If the Bidder is a co -partnership, give firm name under which business is transacted; proposal must be executed by a partner. If the Bidder is a corporation, proposal must be executed in the corporate name by the president or vice-president (or any other corporate officer accompanied by evidence of authority to sign). 2. A bid must be received on all items. If either a unit price or an extension is left blank (but not both) for a bid item, the Owner will multiply or divide the available entry by the quantity, as applicable, and enter it on the bid form. If there is no unit price or extension for one or more bid item(s), the proposal will be rejected. P-19 BID SECURITY Bid Deposit: The undersigned Principal hereby deposits a Bid Deposit with the City of Tukwila in the form of a cash deposit, certified or cashier's check, or postal money order in the amount of dollars ($ ). --OR-- Bid Bond: The undersigned, (Principal), and (Surety), are held and firmly bound unto the City of Tukwila (Owner) in the penal sum of dollars ($ ), which for the payment of which Principal and Surety bind themselves, their heirs, executors, administrators, successors and assigns, jointly and severally. The liability of Surety under this Bid Bond shall be limited to the penal sum of this Bid Bond. Conditions: The Bid Deposit or Bid Bond shall be an amount not less than five percent (5%) of the total bid, including sales tax and is submitted by Principal to Owner in connection with a Proposal for 40TH — 42ND AVENUE SOUTH — PHASE III, Project No. [#], according to the terms of the Proposal and Bid Documents. Now therefore, a. If the Proposal is rejected by Owner, or b. If the Proposal is accepted and Principal shall duly make and enter into an Agreement with Owner in accordance with the terms of the Proposal and shall furnish a bond for the faithful performance of said Project and for the payment of all persons performing labor or furnishing materials in connection therewith, with Surety or Sureties approved by Owner, then this Bid Security shall be released; otherwise it shall remain in full force and effect and Principal shall forfeit the Bid Deposit or Surety shall immediately pay and forfeit to Owner the amount of the Bid Bond, as penalty and liquidated damages. The obligations of Surety and its Bid Bond shall be in no way impaired or affected by any extension of time within which Owner may accept bids; and Surety does hereby waive notice of any such extension. Signed and dated this day of , 20 Principal Surety By Signature of Authorized Official Attorney in Fact (Attach Power of Attorney) Title Name and address of local office of agent and/or Surety Company: Surety companies executing bonds must appear on the current Authorized Insurance List in the State of P-20 STATE OF WASHINGTON ) COUNTY OF KING NON -COLLUSION DECLARATION ss. The undersigned, being first duly sworn, on oath states that the person, firm, association, partnership, joint venture, or corporation named in the Bid Proposal has (have) not, either directly or indirectly, entered into any agreement, participated in any collusion, or otherwise taken any action in restraint of free competitive bidding in connection with the City of Tukwila project named 40T" — 42ND AVENUE SOUTH — PHASE III, Project No. [#]. Signed and sworn to before me on this Name of Firm Signature of Authorized Official Title day of , 20 Signature of Notary Public in and for the State of Washington, residing at My appointment expires: SEAL To report bid rigging activities call: NOTICE TO ALL BIDDERS 1-800-424-9071 The U.S. Department of Transportation (USDOT) operates the above toll -free "hotline" Monday through Friday, 8:00 a.m. to 5:00 p.m., eastern time. Anyone with knowledge of possible bid rigging, bidder collusion, or other fraudulent activities should use the "hotline" to report such activities. The "hotline" is part of USDOT's continuing effort to identify and investigate highway construction contract fraud and abuse and is operated under the direction of the USDOT Inspector General. All information will be treated confidentially and caller anonymity will be respected. P-21 RESPONSIBLE BIDDER DETERMINATION FORM Attach additional sheets as necessary to fully provide the information required. Name of Bidder: Address of Bidder: City Contractor's License No. State WA State UBI No. Zip Code Dept. of L&I License Bond Registration No. Worker's Comp. Acct. No. Bidder is a(n): 0 Individual 0 Partnership 0 Joint Venture 0 Incorporated in the state of List business names used by Bidder during the past 10 years if different than above: Bidder has been in business continuously from Bank Reference Year Bank Account Officer Officer's Phone No. No. of regular full-time employees: Number of projects in the past 10 years completed: ahead of schedule _ on schedule behind schedule Bidder has had experience in work comparable to that required for this Project: As a prime contractor for years. As a subcontractor for years. List the supervisory personnel to be employed by the Bidder and available for work on this project (Project Manager, Principal Foreman, Superintendents, and Engineers): Name Title How Long With Bidder P-22 Name the Surveyor to be used on this Project, who will directly supervise all surveying activities. Attach a resume outlining the experience and qualifications of the Surveyor.. Is the Surveyor licensed in the State of Washington (a PLS)? Yes ❑ No Surveyor's Name: List all those projects, of similar nature and size, completed by Bidder within the past 10 years. Include a reference for each. Any attached preprinted project listing must include all this information. Bidder must have at least 10 years experience working on projects of similar nature and size. Year Contract Project Name Completed Amount Owner/Reference Name and Phone List all projects undertaken in the last 10 years which have resulted in partial or final settlement of the Contract by arbitration or litigation in the courts: Name of Client and Project Total Claims Amount of Contract Arbitrated Settlement Amount or Litigated of Claims Has Bidder, or any representative or partner thereof, ever failed to complete a contract? 0 No 0 Yes If yes, give details: Has Bidder ever had any Payment/Performance Bonds called as a result of its work? 0 No 0 Yes If yes, please state: Project Name Contracting Party Bond Amount Responsible Bidder Determination Form P-23 Has Bidder ever been found guilty of violating any State or Federal employment laws? 0 No 0 Yes If yes, give details: Has Bidder ever filed for protection under any provision of the federal bankruptcy laws or state insolvency laws? 0 No 0 Yes If yes, give details: Has any adverse legal judgment been rendered against Bidder in the past 5 years? 0 No 0 Yes If yes, give details: Has Bidder or any of its employees filed any claims with Washington State Workman's Compensation or other insurance company for accidents resulting in fatal injury or dismemberment in the past 5 years? ❑ No 0 Yes If yes, please state: Date Type of Injury Agency Receiving Claim The undersigned warrants under penalty of Perjury that the foregoing information is true and accurate to the best of his/her knowledge. The undersigned authorizes the City of Tukwila to verify all information contained herein. Signature of Bidder Title: Date: P-24 PROPOSED EQUIPMENT AND LABOR SCHEDULE (Use additional sheets if required) Equipment to be used: DESCRIPTION/TYPE YEAR CONDITION OWN/RENT Labor to be used: Name of Bidder Signature of Authorized Official Title P-25 PROPOSED SUBCONTRACTORS Name of Bidder In accordance with RCW 39.30.060 as amended, every bid that totals $1 million or more shall include below the names of the subcontractors with whom the Bidder, if awarded the contract, will subcontract for performance of the work of: HVAC (heating, ventilation, and air conditioning); plumbing as described in chapter 18.106 RCW; and electrical as described in chapter 19.28 RCW, or to name itself for the work. The Bidder shall not list more than one subcontractor for each category of work identified, unless subcontractors vary with bid alternates, in which case the Bidder must indicate which subcontractor will be used for which alternate. Failure of the Bidder to submit as part of the bid the names of such subcontractors or to name itself to perform such work or the naming of two or more subcontractors to perform the same work shall render the prime contract bidder's bid nonresponsive and, therefore, void. The successful Bidder must have the written permission of the Owner to make any change to this list. Percent of total bid to be performed by Bidder Schedule/Bid Item Numbers % of Name Subcontractor will perform Total Bid C-1 AGREEMENT FORM CONTRACT NO. THIS AGREEMENT is made and entered into on this day of , 20_, by and between the City of Tukwila, Washington ("Owner") and ("Contractor"). Now, therefore the parties agree as follows: 1. Project. Contractor shall complete all work and furnish all labor, tools, materials, and equipment for the project entitled 40111 — 42ND AVENUE SOUTH — PHASE III, Project No. [##], including all changes to the Work and force account work, in accordance with the Contract Documents, as described in Section 1-04.2 of the Supplemental General Requirements. 2. Payments. Owner shall pay Contractor at the unit and lump sum prices, and by force account as specified in the Proposal according to the Contract Documents as to time, manner, and condition of payment. The payments to Contractor include the costs for all labor, tools, materials and equipment for the Work. 3. Completion Date. Contract time shall commence upon Owner's Notice to Proceed date. The Work under this Agreement shall be completed within the time specified in the Proposal. If the Work under this Agreement is not completed within the time specified, as detailed in the Contract Documents, Contractor shall pay liquidated damages and all engineering inspection and supervision costs to Owner as specified in the Proposal. 4. Attorney's Fees. In the event litigation is commenced to enforce this Agreement, the prevailing party shall be entitled to recover its costs, including reasonable attorneys and expert witness fees. 5. Disclaimer. No liability of Contractor shall attach to Owner by reason of entering into this Agreement, except as expressly provided in this Agreement. 6. Counterparts. This Agreement is executed in two (2) identical counterparts, by the parties, each of which shall for all purposes be deemed an original. CITY OF TUKWILA, WASHINGTON (Owner) (Contractor) By: By: Mayor Title: Attest: This day of Attest: , 20 This day of , 20 City Clerk Approved as to Form: Contractor's License No. City Attorney Address for giving notices: Address for giving notices: C-2 PAYMENT AND PERFORMANCE BOND Bond to City of Tukwila, Washington Bond No. We, and (Principal) (Surety) a corporation, and as a surety corporation authorized to become a surety upon Bonds of Contractors with municipal corporations in Washington State, are jointly and severally bound to the City of Tukwila, Washington ("Owner"), in the penal sum of Dollars ($ ), the payment of which sum, on demand, we bind ourselves and our successors, heirs, administrators, executors, or personal representatives, as the case may be. This Payment and Performance Bond is provided to secure the performance of Principal in connection with a contract dated , 20_ , between Principal and Owner for a project entitled 40TH — 42ND AVENUE SOUTH — PHASE III, Contract No. ("Contract"). The initial penal sum shall equal 100% of the Total Bid Price, including sales tax, as specified in the Proposal submitted by Principal. NOW, THEREFORE, this Payment and Performance Bond shall be satisfied and released only upon the condition that Principal: • Faithfully performs all provisions of the Contract and changes authorized by Owner in the manner and within the time specified as may be extended under the Contract; • Pays all laborers, mechanics, subcontractors, lower tier subcontractors, material men, and all other persons or agents who supply labor, equipment, or materials to the Project; • Indemnifies and holds Owner, its officers, and agents harmless from and against all claims, liabilities, causes of action, damages, and costs for such payments for labor, equipment, and materials by satisfying all claims and demands incurred under the Contract, and reimbursing and paying Owner all expenses that Owner may incur in making good any default by Principal; and • Indemnifies and holds Owner harmless from all claims, liabilities, causes of action, damages and costs, including property damages and personal injuries, resulting from any defect appearing or developing in the material provided or workmanship performed under the Contract. The indemnities to Owner shall also inure to the benefit of the Consulting Engineers and other design professionals retained by Owner in connection with the Project. The liability of Surety shall be limited to the penal sum of this Payment and Performance Bond. No change, extension of time, alteration, or addition to the terms of the Contract or to the Work to be performed under the Contract shall in any way affect Surety's obligation on the Payment and Performance Bond. Surety hereby waives notice of any change, extension of time, alteration, or addition to the terms of the Contract or the Work, with the exception that Surety shall be notified if the Contract time is extended by more than twenty percent (20%). If any modification or change increases the total amount to be paid under the Contract, Surety's obligation under this Payment and Performance Bond shall automatically increase in a like amount. Any such increase shall not exceed twenty-five percent (25%) of the original amount of the Payment and Performance Bond without the prior written consent of Surety. Payment & Performance Bond C-3 This Payment and Performance Bond shall be governed and construed by the laws of the State of Washington, and venue shall be in King County, Washington. IN WITNESS WHEREOF, the parties have executed this instrument in two (2) identical counterparts this day of , 20 Principal Surety Signature of Authorized Official Signature of Authorized Official By Title Attorney in Fact Name and address of local office of agent and/or Surety Company: (Attach Power of Attorney) Surety companies executing bonds must appear on the current Authorized Insurance List in the State of Washington per Section 1-02.7 of the Standard Specifications. 1 INTRODUCTION 2 3 4 5 7 8 9 10 11 12 13 14 The following Amendments and Special Provisions shall be used in conjunction with the 2016 Standard Specifications for Road, Bridge, and Municipal Construction. AMENDMENTS TO THE STANDARD SPECIFICATIONS The following Amendments to the Standard Specifications are made a part of this contract and supersede any conflicting provisions of the Standard Specifications. For informational purposes, the date following each Amendment title indicates the implementation date of the Amendment or the latest date of revision. Each Amendment contains all current revisions to the applicable section sof Specifications and may include references which do not apply to this partic4 15 Section 1-01, Definitions and Terms 16 August 1, 2016 17 18 19 20 21 22 1-01.3 Definitions o<e° � The following new term and definition is inserted after the'lith paragraph: tandard ect. Cold Weather Protection Period — A period {► 7 days from the day of concrete placement or the duration of the cure period, ever is longer. 23 Section 1-02, Bid Procedures and Col ns \c\C) 24 April 4, 2016 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 448, c14' The 43 44 45 46 47 48 1-02.4(1) General The first sentence of the last par 'l ph is revised to read: Any prospective Bidd ring an explanation or interpretation of the Bid Documents, shall request the a la tion or interpretation in writing by close of business on the Thursday precedi a bid opening to allow a written reply to reach all prospective Bidders before mission of their Bids. 1-02.9 DelivProposal The last nee of the third paragraph is revised to read: tracting Agency will not open or consider any Proposal when the Proposal or Bid sit is received after the time specified for receipt of Proposals or received in a location er than that specified for receipt of Proposals unless an emergency or unanticipated event interrupts normal work processes of the Contracting Agency so that Proposals cannot be received. following new paragraph is inserted before the last paragraph: If an emergency or unanticipated event interrupts normal work processes of the Contracting Agency so that Proposals cannot be received at the office designated for receipt of bids as specified in Section 1-02.12 the time specified for receipt of the Proposal will be deemed to be extended to the same time of day specified in the solicitation on the first work day on which the normal work processes of the Contracting Agency resume. SPECIAL PROVISIONS SP- i SPECIAL PROVISIONS - CONTENTS INTRODUCTION TO THE SPECIAL PROVISIONS 1 DIVISION 1- GENERAL REQUIREMENTS 2 1-01 DEFINITIONS AND TERMS 2 1-01.3 Definitions 2 1-02 BID PROCEDURES AND CONDITIONS 4 1-02.1 Prequalification of Bidders 4 1-02.1 Qualifications of Bidder 4 1-02,1(1) Supplemental Qualifications Criteria Error! Bookmark not defined. 1-02.2 Plans and Specifications 4 1-02.2 Plans and Specifications 4 1-02.4(2) Subsurface Information 4 1-02.4(2) Subsurface Information 5 1-02.5 Proposal Forms 5 1-02.6 Preparation of Proposal 5 1-02.6(1) Recycled Materials Proposal 6 1-02.7 Bid Deposit 6 1-02.9 Delivery of Proposal 6 1-02.10 Withdrawing, Revising, or Supplementing Proposal 7 1-02.12 Public Opening of Proposals 7 1-02.13 Irregular Proposals 7 1-02.14 Disqualification of Bidders Error! Bookmark not defined. 1-02.14 Disqualification of Bidders 8 1-02.14 Disqualification of Bidders Error! Bookmark not defined. 1-02.15 Pre Award Information 11 1-03 AWARD AND EXECUTION OF CONTRACT 12 1-03.1 Consideration of Bids 12 1-03.1(1) Identical Bid Totals 12 1-03.2 Award of Contract 12 1-03.3 Execution of Contract 13 1-03.4 Contract Bond 13 1-03.4(1) Retainage in Lieu of Contract Bond 14 1-03.7 Judicial Review 14 1-04 SCOPE OF THE WORK 14 1-04.2 Coordination of Contract Documents. Plans. Special Provisions Specifications, and Addenda 14 1-04.4(1) Minor Changes 15 1-04.4(1) Unexpected Site Changes 15 1-04.6 Variation in Estimated Quantities Error! Bookmark not defined. 1-04.6 Variation in Estimated Quantities 15 1-04.6 Variation in Estimated Quantities Error! Bookmark not defined. 1-04 11 Final Cleanup 16 1-05 CONTROL OF WORK 16 1-05 1 Authority of Engineer 16 1-05.4 Conformity With And Deviations From Plans And Stakes 16 1-05 5 As -Built Recording 18 1-05.7 Removal of Defective and Unauthorized Work 19 1-05.11 Final Inspection 20 1-05.11 Final Inspections and Operational Testing 20 1-05.11(1) Substantial Completion Date . 20 1-05.11(2) Final Inspection and Physical Completion Date 20 1-05.11(3) Operational Testing 21 1-05.12(1) One -Year Guarantee Period 21 1-05.13 Superintendents, Labor and Equipment of Contractor 22 1-05 14 Cooperation with Other Contractors 22 SP- ii 1-05 14(1) 1-05.15 1-05.16 1-05.17 1-05.18 1-05.18 Notifications Relative to Contractor's Activities 23 Method of Serving Notices 25 Water and Power 25 Oral Agreements Error! Bookmark not defined. Record Drawings Error! Bookmark not defined. Contractor's Daily Diary 25 1-06 CONTROL OF MATERIAL 26 1-06.1(4) 1-06.6 1-07 LEGAL RE 1-07.1 1-07.2 1-07.2 1-07.2(1) 1-07.2(2) 1-07.2(3) 1-07.5 1-07 5(5) 1-07 6 1-07.6 1-07.7 1-07 7(1) 1-07 9(3) 1-07.13 1-07 16(1-i 1-07.16(3, 1-07.18 1-07.18 1-07.18(1) 1-07.18(2) 1-07.18(3) 1-07.18(4) 1-07.18(5) 1-07.18(5)A 1-07.18(5)B 1-07.18(5)C 36 1-07.18(5)D 1-07.18(5)E 1-07.18(5)E 1-07.18(5)G 1-07.18(5)H 1-07.18(5)1 1-07.18(5)J 1-07.18(5)K 1-07.24 Fabrication Inspection Expense 26 Recycled Materials 27 LATIONS AND RESPONSIBILITIES TO THE PUBLIC 27 Laws to be Observed 27 State Taxes 27 State Sales Tax 27 State Sales Tax - Rule 171 28 State Sales Tax - Rule 170 28 Services 28 Environmental Regulations 29 Noise Regulations 29 Permits and Licenses 29 Permits and Licenses 30 Load Limits 30 General 30 Apprentices 30 Contractor's Responsibility for Work Error! Bookmark not defined. Private/Public Property 33 Fences Mailboxes, Incidentals 33 Public Liability and Property Damage Insurance 33 Insurance 33 General Requirements 33 Additional Insured 34 Subcontractors 34 Verification of Coverage 35 Coverages and Limits 35 Commercial General Liability 35 Automobile Liability 36 Workers' Compensation 36 Excess or Umbrella Liability 36 LHWCA Insurance 36 LHWCA Insurance 37 Hull and Machinery 37 Marine Pollution 37 Builder's Risk 37 Pollution Liability 38 Professional Liability 39 Rights of Way 39 1-08 PROSECUTION AND PROGRESS 41 1-08.0 1-08.0(1) 1-08.0(2) 1-08.1 1-08.3 1-08.3(2)A 1-08.3(2)IB 1-08.4 1-08.4 1-08.5 Preliminary Matters 41 Preconstruction Conference 41 Hours of Work 41 Subcontracting 42 Progress Schedule 42 Type A Progress Schedule Error! Bookmark not defined. Type B Progress Schedule 42 Prosecution of Work 43 Notice to Proceed and Prosecution of Work 43 Time for Completion 43 SP- iii 1-08 6 Suspension of Work 44 1-08 8 Extensions of Time 44 1-08.9 Liquidated Damages 44 1-09 MEASUREMENT AND PAYMENT 45 1-09.2(1) General Requirements for Weighing Equipment 45 1-09.6 Force Account 45 1-09.8 Payment for Material on Hand 46 1-09.9 Payments 46 1-09.9 Payments 46 1-09,9 Payments 47 1-09.13(3) Claims $250,000 or Less 48 1-09.13(3)A Administration of Arbitration 48 1-10.5(1) Lump Sum Bid for Project (No Unit Items) Error! Bookmark not defined. 1-10.5(2) Item Bids with Lump Sum for Incidentals 48 SP- 1 INTRODUCTION TO THE SPECIAL PROVISIONS (August 14, 2013 APWA GSP) The work on this project shall be accomplished in accordance with the Standard Specifications for Road, Bridge and Municipal Construction, 2016 edition, as issued by the Washington State Department of Transportation (WSDOT) and the American Public Works Association (APWA), Washington State Chapter (hereafter "Standard Specifications"). The Standard Specifications, as modified or supplemented by the Amendments to the Standard Specifications and these Special Provisions, all of which are made a part of the Contract Documents, shall govern all of the Work. These Special Provisions are made up of both General Special Provisions (GSPs) from various sources, which may have project -specific fill-ins; and project -specific Special Provisions. Each Provision either supplements, modifies, or replaces the comparable Standard Specification, or is a new Provision. The deletion, amendment, alteration, or addition to any subsection or portion of the Standard Specifications is meant to pertain only to that particular portion of the section, and in no way should it be interpreted that the balance of the section does not apply. The project -specific Special Provisions are not labeled as such. The GSPs are labeled under the headers of each GSP, with the effective date of the GSP and its source. For example: (March 8, 2013 APWA GSP) (April 1, 2013 WSDOT GSP) (May 1, 2013 Tukwila GSP) Also incorporated into the Contract Documents by reference are: • Manual on Uniform Traffic Control Devices for Streets and Highways, currently adopted edition, with Washington State modifications, if any • Standard Plans for Road, Bridge and Municipal Construction, WSDOT/APWA, current edition • City of Tukwila Standard Plans, Third Edition, Rev. 4, April 2010. Contractor shall obtain copies of these publications, at Contractor's own expense. * * IMPORTANT - PLEASE READ ** Each Special Provision in this document either Supplements, Replaces, or Modifies the specific combined Standard Specifications/Amendments cited; or is a New section/provision — as detailed below. These designations are shown in Italics at the beginning of each Special Provision. Supplement: Text supplements or adds clarification to the identified section of the Standard Specifications. New: Item/specification is unique to this project and will not be found in the Standard Specifications. Replacement: A replacement of the entire identified section or subsection of the Standard Specifications. Modification: A replacement of the identified sentence or paragraph of the Standard Specifications. SP- 2 DIVISION 1- GENERAL REQUIREMENTS 1-01 DEFINITIONS AND TERMS 1-01.3 Definitions (January 4, 2016 APWA GSP) Modification Delete the heading Completion Dates and the three paragraphs that follow it, and replace them with the following: Dates Bid Opening Date The date on which the Contracting Agency publicly opens and reads the Bids. Award Date The date of the formal decision of the Contracting Agency to accept the lowest responsible and responsive Bidder for the Work. Contract Execution Date The date the Contracting Agency officially binds the Agency to the Contract. Notice to Proceed Date The date stated in the Notice to Proceed on which the Contract time begins. Substantial Completion Date The day the Engineer determines the Contracting Agency has full and unrestricted use and benefit of the facilities, both from the operational and safety standpoint, any remaining traffic disruptions will be rare and brief, and only minor incidental work, replacement of temporary substitute facilities, plant establishment periods, or correction or repair remains for the Physical Completion of the total Contract. Physical Completion Date The day all of the Work is physically completed on the project. All documentation required by the Contract and required by law does not necessarily need to be furnished by the Contractor by this date. Completion Date The day all the Work specified in the Contract is completed and all the obligations of the Contractor under the contract are fulfilled by the Contractor. All documentation required by the Contract and required by law must be furnished by the Contractor before establishment of this date. Final Acceptance Date The date on which the Contracting Agency accepts the Work as complete. nth . nii A.....-..- 111 SP- 3 Supplement this Section with the following: All references in the Standard Specifications, Amendments, or WSDOT General Special Provisions, to the terms "Department of Transportation", "Washington State Transportation Commission", "Commission", "Secretary of Transportation", "Secretary", "Headquarters", and "State Treasurer" shall be revised to read "Contracting Agency". All references to the terms "State" or "state" shall be revised to read "Contracting Agency" unless the reference is to an administrative agency of the State of Washington, a State statute or regulation, or the context reasonably indicates otherwise. All references to "State Materials Laboratory" shall be revised to read "Contracting Agency designated location". All references to "final contract voucher certification" shall be interpreted to mean the Contracting Agency form(s) by which final payment is authorized, and final completion and acceptance granted. Additive A supplemental unit of work or group of bid items, identified separately in the Bid Proposal, which may, at the discretion of the Contracting Agency, be awarded in addition to the base bid. Alternate One of two or more units of work or groups of bid items, identified separately in the Bid Proposal, from which the Contracting Agency may make a choice between different methods or material of construction for performing the same work. Business Day A business day is any day from Monday through Friday except holidays as listed in Section 1-08.5. Contract Bond The definition in the Standard Specifications for "Contract Bond" applies to whatever bond form(s) are required by the Contract Documents, which may be a combination of a Payment Bond and a Performance Bond. Contract Documents See definition for "Contract". Contract Time The period of time established by the terms and conditions of the Contract within which the Work must be physically completed. Notice of Award The written notice from the Contracting Agency to the successful Bidder signifying the Contracting Agency's acceptance of the Bid Proposal. Notice to Proceed The written notice from the Contracting Agency or Engineer to the Contractor authorizing and directing the Contractor to proceed with the Work and establishing the date on which the Contract time begins. Traffic Both vehicular and non -vehicular traffic, such as pedestrians, bicyclists, wheelchairs, and equestrian traffic. SP- 4 1-02 BID PROCEDURES AND CONDITIONS 1-02.1 Prequadification of Bidders Delete this Section and replace it with the following: 1-02.1 Qualifications of Bidder (January 24, 2011 APWA GSP) Replacement Before award of a public works contract, a bidder must meet at least the minimum qualifications of RCW 39.04.350(1) to be considered a responsible bidder and qualified to be awarded a public works project. 1-02.2 Plans and Specifications (June 27, 2011 APWA GSP) Delete this section and replace it with the following: Replacement Information as to where Bid Documents can be obtained or reviewed can be found in the Call for Bids (Advertisement for Bids) for the work. After award of the contract, plans and specifications will be issued to the Contractor at no cost as detailed below: To Prime Contractor No. of Sets Basis of Distribution Reduced plans (11" x 17") 10 Furnished automatically upon award. Contract Provisions 10 Furnished automatically upon award. Large plans (e.g., 22" x 34") 1 Furnished only upon request. Additional plans and Contract Provisions may be obtained by the Contractor from the source stated in the Call for Bids, at the Contractor's own expense 1-02.2 Plans and Specifications (January 25, 2008 `uk.vila GSP) Supplement Supplement this Section with the following: The original plans and specifications are on file with bxwa com. The Contractor is responsible for al; costs to pint have pnnts produced and related exaenses 1-02.4(2) Subsurface Information (March 8, 2013 APWA GSP) Modification SP- 5 The second sentence in the first paragraph is revised to read: The Summary of Geotechnical Conditions and the boring logs, if and when included as an appendix to the Special Provisions, shall be considered as part of the Contract. 1-02.4(2) Subsurface Information (January 2, 2012 WSDOT GSP) Supplement Section 1-02.4(2), is supplemented with the following: The soils information used for study and design of this project is available for review by the bidder at the following location: Appendix A The soils information includes the following: The Geotechnical Data Report in Appendix A includes data from new Borings that were done in support of the design of this project as well as historical boring logs in the project vicinity. 1-02.5 Proposal Forms (June 27, 2011 APWA GSP) Replacement Delete this section and replace it with the following: The Proposal Form will identify the project and its location and describe the work. It will also list estimated quantities, units of measurement, the items of work, and the materials to be furnished at the unit bid prices. The bidder shall complete spaces on the proposal form that call for, but are not limited to, unit prices; extensions; summations; the total bid amount; signatures; date; and, where applicable, retail sales taxes and acknowledgment of addenda; the bidder's name, address, telephone number, and signature; the bidder's D/M/WBE commitment, if applicable; a State of Washington Contractor's Registration Number; and a Business License Number, if applicable. Bids shall be completed by typing or shall be printed in ink by hand, preferably in black ink. The required certifications are included as part of the Proposal Form. The Contracting Agency reserves the right to arrange the proposal forms with alternates and additives, if such be to the advantage of the Contracting Agency. The bidder shall bid on all alternates and additives set forth in the Proposal Form unless otherwise specified. 1-02.6 Preparation of Proposal (June 27, 2011 APWA GSP) Modification Supplement the second paragraph with the following: 4. If a minimum bid amount has been established for any item, the unit or lump sum price must equal or exceed the minimum amount stated. 5. Any correction to a bid made by interlineation, alteration, or erasure, shall be initialed by the signer of the bid. Delete the last paragraph, and replace it with the following: The Bidder shall make no stipulation on the Bid Form, nor qualify the bid in any manner. A bid by a corporation shall be executed in the corporate name, by the president or a vice president (or other corporate officer accompanied by evidence of authority to sign). SP- 6 A bid by a partnership shall be executed in the partnership name, and signed by a partner. A copy of the partnership agreement shall be submitted with the Bid Form if any D/M/WBE requirements are to be satisfied through such an agreement. A bid by a joint venture shall be executed in the joint venture name and signed by a member of the joint venture. A copy of the joint venture agreement shall be submitted with the Bid Form if any D/W/MBE requirements are to be satisfied through such an agreement. Section 1-02.6 is supplemented with the following: (August 7, 2006) Progress Schedule Minimum Bid A minimum bid of $5000 lump sum has been established for the item "Type B Progress Schedule." The Contractor's bid shall equal or exceed that amount. If the Contractor's bid is less than the minimum specified amount, the Contracting Agency willl-02.6(1) Recycled Materials Proposal (January 4, 2016 APWA GSP) New The Bidder shall submit with the Bid, its proposal for incorporating recycled materials into the project, using the form provided in the Contract Provisions. 1-02.7 Bid Deposit (March 8, 2013 APWA GSP) Supplement Supplement this section with the following: Bid bonds shall contain the following: 1. Contracting Agency -assigned number for the project; 2. Name of the project; 3. The Contracting Agency named as obligee; 4. The amount of the bid bond stated either as a dollar figure or as a percentage which represents five percent of the maximum bid amount that could be awarded; 5. Signature of the bidder's officer empowered to sign official statements. The signature of the person authorized to submit the bid should agree with the signature on the bond, and the title of the person must accompany the said signature; 6. The signature of the surety's officer empowered to sign the bond and the power of attorney. If so stated in the Contract Provisions, bidder must use the bond form included in the Contract Provisions. If so stated in the Contract Provisions, cash will not be accepted for a bid deposit. 1-02.9 Delivery of Proposal (August 15, 2012 APWA GSP, Option A) Replacement Delete this section and replace it with the following: SP- 7 Each proposal shall be submitted in a sealed envelope, with the Project Name and Project Number as stated in the Call for Bids clearly marked on the outside of the envelope, or as otherwise required in the Bid Documents, to ensure proper handling and delivery. If the project has FHWA funding and requires DBE Written Confirmation Documents or Good Faith Effort Documentation, then to be considered responsive, the Bidder shal submit with their Bid Proposal, written Confirmation Documentation from each DBE firm listed on the Bidder's completed DBE Utilization Certification, form 272-056A EF, as required by Section 1-02.6. The Contracting Agency will not open or consider any Bid Proposal that is received after the time specified in the Call for Bids for receipt of Bid Proposals, or received in a Vocation other than that specified in the Call for Bids. 1-02.10 Withdrawing, Revising, or Supplementing Proposal (July 23, 2015 APWA GSP) Replacement Delete this section, and replace it with the following: After submitting a physical Bid Proposal to the Contracting Agency, the Bidder may withdraw, revise, or supplement it if: 1. The Bidder submits a written request signed by an authorized person and physically delivers it to the place designated for receipt of Bid Proposals, and 2. The Contracting Agency receives the request before the time set for receipt of Bid Proposals, and 3. The revised or supplemented Bid Proposal (if any) is received by the Contracting Agency before the time set for receipt of Bid Proposals. If the Bidder's request to withdraw, revise, or supplement its Bid Proposal is received before the time set for receipt of Bid Proposals, the Contracting Agency will return the unopened Proposal package to the Bidder. The Bidder must then submit the revised or supplemented package in its entirety. If the Bidder does not submit a revised or supplemented package, then its bid shall be considered withdrawn. Late revised or supplemented Bid Proposals or late withdrawal requests will be date recorded by the Contracting Agency and returned unopened. Mailed, emailed, or faxed requests to withdraw, revise, or supplement a Bid Proposal are not acceptable. 1-02.12 Public Opening of Proposals (May 4, 2012 APWA GSP) Replacement Delete this section and replace it with the following: Proposals will be opened and publicly read at the time indicated in the Call for Bids, after the deadline(s) for submitting all elements of the Bid Proposal including DBE Written Confirmation Documents and/or Good Faith Effort Documentation, unless the Bid opening has been delayed or canceled. Bidders, their authorized agents, and other interested parties are invited to be present. 1-02.13 Irregular Proposals (January 4, 2016 APWA GSP) Replacement Delete this section and replace it with the following: SP- 8 1. A proposal will be considered irregular and will be rejected if: a. The Bidder is not prequalified when so required; b. The authorized proposal form furnished by the Contracting Agency is not used or is altered; c. The completed proposal form contains any unauthorized additions, deletions, alternate Bids, or conditions; d. The Bidder adds provisions reserving the right to reject or accept the award, or enter into the Contract; e. A price per unit cannot be determined from the Bid Proposal; f. The Proposal form is not properly executed; g. The Bidder fails to submit or properly complete a Subcontractor list, if applicable, as required in Section 1-02.6; h. The Bidder fails to submit or properly complete a Disadvantaged Business Enterprise Certification, if applicable, as required in Section 1-02.6; i. The Bidder fails to submit written confirmation from each DBE firm listed on the Bidder's completed DBE Utilization Certification that they are in agreement with the bidders DBE participation commitment, if applicable, as required in Section 1-02.6, or if the written confirmation that is submitted fails to meet the requirements of the Special Provisions; The Bidder fails to submit DBE Good Faith Effort documentation, if applicable, as required in Section 1-02.6, or if the documentation that is submitted fails to demonstrate that a Good Faith Effort to meet the Condition of Award was made; k. The Bid Proposal does not constitute a definite and unqualified offer to meet the material terms of the Bid invitation; or More than one proposal is submitted for the same project from a Bidder under the same or different names. 2. A Proposal may be considered irregular and may be rejected if: a. The Proposal does not include a unit price for every Bid item; b. Any of the unit prices are excessively unbalanced (either above or below the amount of a reasonable Bid) to the potential detriment of the Contracting Agency; c. Receipt of Addenda is not acknowledged; d. A member of a joint venture or partnership and the joint venture or partnership submit Proposals for the same project (in such an instance, both Bids may be rejected); or e. If Proposal form entries are not made in ink. 1-02.14 Disqualification of Bidders (March 8, 2013 APWA GSP, Option B) Replacement Delete this Section and replace it with the following: A Bidder will be deemed not responsible if the Bidder does not meet the mandatory bidder responsibility criteria in RCW 39.04.350(1), as amended; or does not meet the following Supplemental Criteria: 1. Delinquent State Taxes A. Criterion: The Bidder shall not owe delinquent taxes to the Washington State Department of Revenue without a payment plan approved by the Department of Revenue. B. Documentation: The Bidder shall not be listed on the Washington State Department of Revenue's "Delinquent Taxpayer List" website: n}h wnn,1 A..—..rm.— 111 SP- 9 http://dor.wa.gov/content/fileandpaytaxes/latefiling/dtlwest.aspx , or if they are so listed, they must submit a written payment plan approved by the Depariment of Revenue, to the Contracting Agency by the deadline listed below. 2. Federal Debarment A. Criterion: The Bidder shall not currently be debarred or suspended by the Federal government. B. Documentation: The Bidder shall not be listed as having an "active exclusion" on the U.S. government's "System for Award Management" database (www.sam.gov). 3. Subcontractor Responsibility A. Criterion: The Bidder's standard subcontract form shall include the subcontractor responsibility language required by RCW 39.06.020, and the Bidder shall have an established procedure which it utilizes to validate the responsibility of each of its subcontractors. The Bidder's subcontract form shall also include a requirement that each of its subcontractors shall have and document a similar procedure to determine whether the sub -tier subcontractors with whom it contracts are also "responsible" subcontractors as defined by RCW 39.06.020. B. Documentation: The Bidder, if and when required as detailed below, shall submit a copy of its standard subcontract form for review by the Contracting Agency, and a written description of its procedure for validating the responsibility of subcontractors with which it contracts. Prevailing Wages A. Criterion: The Bidder shall not have a record of prevailing wage violations as determined by WA Labor & Industries in the five years prior to the bid submittal date, that demonstrates a pattern of failing to pay workers prevailing wages, unless there are extenuating circumstances and such circumstances are deemed acceptable to the Contracting Agency. B. Documentation: The Bidder, if and when required as detailed below, shall submit a list of all prevailing wage violations in the five years prior to the bid submittal date, along with an explanation of each violation and how it was resolved. The Contracting Agency will evaluate these explanations and the resolution of each complaint to determine whether the violations demonstrate a pattern of failing to pay its workers prevailing wages as required. 5. Claims Against Retainage and Bonds A. Criterion: The Bidder shall not have a record of excessive caims filed against the retainage or payment bonds for public works projects in the three years prior to the bid submittal date, that demonstrate a lack of effective management by the Bidder of making timely and appropriate payments to its subcontractors, suppliers, and workers, unless there are extenuating circumstances and such circumstances are deemed acceptable to the Contracting Agency. B. Documentation: The Bidder, if and when required as detailed below, shall submit a list of the public works projects completed in the three years prior to the bid submittal date that have had claims against retainage and bonds and include for each project the following information: • Name of project SP- 10 • The owner and contact information for the owner; • A list of claims filed against the retainage and/or payment bond for any of the projects listed; • A written explanation of the circumstances surrounding each claim and the ultimate resolution of the claim. 6. Public 3iddinq Crime A. Criterion: The Bidder and/or its owners shall not have been convicted of a crime involving bidding on a public works contract in the five years prior to the bid submittal date. B. Documentation: The Bidder, if and when required as detailed below, shall sign a statement (on a form to be provided by the Contracting Agency) that the Bidder and/or its owners have not been convicted of a crime involving bidding on a public works contract. 7. Termination for Cause / Termination for Default A. Criterion: The Bidder shall not have had any public works contract terminated for cause or terminated for default by a government agency in the five years prior to the bid submittal date, unless there are extenuating circumstances and such circumstances are deemed acceptable to the Contracting Agency. B. Documentation: The Bidder, if and when required as detailed below, shall sign a statement (on a form to be provided by the Contracting Agency) that the Bidder has not hac, any public works contract terminated for cause or terminated for default by a government agency in the five years prior to the bid submittal date; or if Bidder was terminated, describe the circumstances. 8. Lawsuits A. Criterion: The Bidder shall not have lawsuits with judgments entered against the Bidder in the five years prior to the bid submittal date that demonstrate a pattern of failing to meet the terms of contracts, unless there are extenuating circumstances and such circumstances are deemed acceptable to the Contracting Agency. B. Documentation: The Bidder, if and when required as detailed below, shall sign a statement (on a form to be provided by the Contracting Agency) that the Bidder has not had any lawsuits with judgments entered against the Bidder in the five years prior to the bid submittal date that demonstrate a pattern of failing to meet the terms of contracts, or shall submit a list of all lawsuits with judgments entered against the Bidder in the five years prior to the bid submittal date, along with a written explanation of the circumstances surrounding each such lawsuit. The Contracting Agency shall evaluate these explanations to determine whether the lawsuits demonstrate a pattern of failing to meet the terms of construction related contracts. As evidence that the Bidder meets the mandatory and supplemental responsibility criteria stated above, the apparent two lowest Bidders must submit to the Contracting Agency by 12:00 P.M. (noon) of the second business day following the bid submittal deadline, a written statement verifying that the Bidder meets all of the mandatory and supplemental criteria together with supporting documentation including but not limited to that detailed above (sufficient in the sole judgment of the Contracting Agency) demonstrating compliance with all mandatory and supplemental responsibility criteria. The Contracting Agency reserves the right to request such documentation from other Bidders as well, and to request further documentation as needed to assess Bidder SP- 11 responsibility. The Contracting Agency also reserves the right to obtain information from third parties and independent sources of information concerning a Bidder's compliance with the mandatory and supplemental criteria, and to use that information in their evaluation. The Contracting Agency may (but is not required to) consider mitigating factors in determining whether the Bidder complies with the requirements of the supplemental criteria. The basis for evaluation of Bidder compliance with these mandatory and supplemental criteria shall include any documents or facts obtained by the Contracting Agency (whether from the Bidder or third parties) including but not limited to: (i) financial, historical, or operational data from the Bidder; (ii) information obtained directly by the Contracting Agency from others for whom the Bidder has worked, or other public agencies or private enterprises; and (iii) any additional information obtained by the Contracting Agency which is believed to be relevant to the matter. If the Contracting Agency determines the Bidder does not meet the bidder responsibility criteria above and is therefore not a responsible Bidder, the Contracting Agency shall notify the Bidder in writing, with the reasons for its determination. If the Bidder disagrees with this determination, it may appeal the determination within two (2) business days of the Contracting Agency's determination by presenting its appeal and any additional information to the Contracting Agency. The Contracting Agency will consider the appeal and any additional information before issuing its final determination. If the final determination affirms that the Bidder is not responsible, the Contracting Agency will not execute a contract with any other Bidder until at least two business days after the Bidder determined to be not responsible has received the Contracting Agency's final determination. Request to Change Supplemental Bidder Responsibility Criteria Prior To Bid: Bidders with concerns about the relevancy or restrictiveness of the Supplemental Bidder Responsibility Criteria may make or submit requests to the Contracting Agency to modify the criteria. Such requests shall be in writing, describe the nature of the concerns, and propose specific modifications to the criteria. Bidders shall submit such requests to the Contracting Agency no later than five (5) business days prior to the bid submittal deadline and address the request to the Project Engineer or such other person designated by the Contracting Agency in the Bid Documents. 1-02.15 Pre Award Information (August 14, 2013 APWA GSP) Modification Revise this section to read: Before awarding any contract, the Contracting Agency may require one or more of these items or actions of the apparent lowest responsible bidder: 1. A complete statement of the origin, composition, and manufacture of any or all materials to be used, 2. Samples of these materials for quality and fitness tests, 3. A progress schedule (in a form the Contracting Agency requires) showing the order of and time required for the various phases of the work, 4. A breakdown of costs assigned to any bid item, 5. Attendance at a conference with the Engineer or representatives of the Engineer, SP- 12 6. Obtain, and furnish a copy of, a business license to do business in the city or county where the work is located. 7. Any other information or action taken that is deemed necessary to ensure that the bidder is the lowest responsible bidder. 1-03 AWARD AND EXECUTION OF CONTRACT 1-03.1 Consideration of Bids (January 23, 2006 APWA GSP) Modification Revise the first paragraph to read: After opening and reading proposals, the Contracting Agency will check them for correctness of extensions of the prices per unit and the total price. If a discrepancy exists between the price per unit and the extended amount of any bid item, the price per unit will control. If a minimum bid amount has been established for any item and the bidder's unit or lump sum price is less than the minimum specified amount, the Contracting Agency will unilaterally revise the unit or lump sum price, to the minimum specified amount and recalculate the extension. The total of extensions, corrected where necessary, including sales taxes where applicable and such additives and/or alternates as selected by the Contracting Agency, will be used by the Contracting Agency for award purposes and to fix the Awarded Contract Price amount and the amount of the contract bond. 1-03.1(1) Identical Bid Totals (January 4, 2016 APWA GSP) Modification Revise this section to read: After opening Bids, if two or more lowest responsive Bid totals are exactly equal, then the tie- breaker will be the Bidder with an equal lowest bid, that proposed to use the highest percentage of recycled materials in the Project, per the form submitted with the Bid Proposal. If those percentages are also exactly equal, then the tie -breaker will be determined by drawing as follows: Two or more slips of paper will be marked as follows: one marked "Winner" and the other(s) marked "unsuccessful". The slips will be folded to make the marking unseen. The slips will be placed inside a box. One authorized representative of each Bidder shall draw a slip from the box. Bidders shall draw in alphabetic order by the name of the firm as registered with the Washington State Department of Licensing. The slips shall be unfolded and the firm with the slip marked "Winner" will be determined to be the successful Bidder and eligible for Award of the Contract. Only those Bidders who submitted a Bid total that is exactly equal to the lowest responsive Bid, and with a proposed recycled materials percentage that is exactly equal to the highest proposed recycled materials amount, are eligible to draw. 1-03.2 Award of Contract (March 31. 2006 TLkwila GSP) Supplement Supplement this section w:th the following. The Award of contract. if made. tir;li be made to the 'owest responsive and responsible bidder No Award will be made until necessary investigatcns are made by Contracting Agency as to the responsibility of the apparent love bidder Contracting Agency shall be the sole judge as to the responsrbNlity of the bidder to satisfactorily perform the work as specified and within the tme limit set SP- 13 1-03.3 Execution of Contract (October 1, 2005 APWA GSP) Modification Revise this Section to read: Copies of the Contract Provisions, including the unsigned Form of Contract, will be available for signature by the successful bidder on the first business day following award. The number of copies to be executed by the Contractor will be determined by the Contracting Agency. Within 14 calendar days after the award date, the successful bidder shall return the signed Contracting Agency -prepared contract, an insurance certification as required by Section 1-07.18, and a satisfactory bond as required by law and Section 1-03.4. Before execution of the contract by the Contracting Agency, the successful bidder shall provide any pre -award information the Contracting Agency may require under Section 1-02.15. Until the Contracting Agency executes a contract, no proposal shall bind the Contracting Agency nor shall any work begin within the project limits or within Contracting Agency -furnished sites. The Contractor shall bear all risks for any work begun outside such areas and for any materials ordered before the contract is executed by the Contracting Agency. If the bidder experiences circumstances beyond their control that prevents return of the contract documents within the calendar days after the award date stated above, the Contracting Agency may grant up to a maximum of 7 additional calendar days for return of the documents, provided the Contracting Agency deems the circumstances warrant it. 1-03.4 Contract Bond (July 23, 2015 APWA GSP) Replacement Delete the first paragraph and replace it with the following: The successful bidder shall provide executed payment and performance bond(s) for the full contract amount. The bond may be a combined payment and performance bond; or be separate payment and performance bonds. In the case of separate payment and performance bonds, each shall be for the full contract amount. The bond(s) shall: 1. Be on Contracting Agency -furnished form(s); 2. Be signed by an approved surety (or sureties) that: a. Is registered with the Washington State Insurance Commissioner, and b. Appears on the current Authorized Insurance List in the State of Washington published by the Office of the Insurance Commissioner, 3. Guarantee that the Contractor will perform and comply with all obligations, duties, and conditions under the Contract, including but not limited to the duty and obligation to indemnify, defend, and protect the Contracting Agency against all losses and claims related directly or indirectly from any failure: a. Of the Contractor (or any of the employees, subcontractors, or lower tier subcontractors of the Contractor) to faithfully perform and comply with all contract obligations, conditions, and duties, or b. Of the Contractor (or the subcontractors or lower tier subcontractors of the Contractor) to pay all laborers, mechanics, subcontractors, lower tier subcontractors, material person, or any other person who provides supplies or provisions for carrying out the work; 4. Be conditioned upon the payment of taxes, increases, and penalties incurred on the project under titles 50, 51, and 82 RCW; and SP- 14 5. Be accompanied by a power of attorney for the Surety's officer empowered to sign the bond; and 6. Be signed by an officer of the Contractor empowered to sign official statements (sole proprietor or partner). If the Contractor is a corporation, the bond(s) must be signed by the president or vice president, unless accompanied by written proof of the authority of the individual signing the bond(s) to bind the corporation (i.e., corporate resolution, power of attorney, or a letter to such effect signed by the president or vice president). 1-03.4(1) Retainage in Lieu of Contract Bond [delete if FHWA funded project] (October 10, 2008 APWA GSP) New Add the following new section: For contracts of $35,000 or less, the Contractor may, at the Contractor's option, authorize the Contracting Agency to retain fifty percent (50%) of the contract amount in lieu of furnishing a performance and/or payment bond. If the Contractor elects this option, the retainage shall be held for a period of thirty (30) days after the date of final acceptance, or until receipt of all necessary releases from the Departments of Revenue and of Labor and Industries and settlement of any liens filed under RCW 60.28, whichever is later. The Contractor must advise the Contracting Agency in writing of the Contractor's election to authorize retainage in lieu of a bond, at the time of execution of the Contract. In choosing this option, the Contractor agrees that if the Contractor, its heirs, executors, administrators, successors, or assigns, shall in all things stand to and abide by, and well and truly keep and perform the covenants, conditions and agreements in the Contract, and shall faithfully perform all the provisions of such contract and shall also well and truly perform and fulfill all the undertakings, covenants, terms, conditions and agreements of any and all duly authorized modifications of the Contract that may hereafter be made, at the time and in the manner therein specified, and shall pay all laborers, mechanics, subcontractors, and material suppliers, and all persons who shall supply such person or persons, or subcontractors, with provisions and supplies for the carrying on of such work, on his or her part, and shall indemnify and save harmless the Contracting Agency, its officers and agents from any claim for such payment, then the funds retained in lieu of a performance bond shall be released at the time provided above; otherwise, the funds shall be retained until the Contractor fulfills the said obligations. 1-03.7 Judicial Review (July 23, 2015 APWA GSP) Modification Revise this section to read: Any decision made by the Contracting Agency regarding the Award and execution of the Contract or Bid rejection shall be conclusive subject to the scope of judicial review permitted under Washington Law. Such review, if any, shall be timely filed in the Superior Court of the county where the Contracting Agency headquarters is located, provided that where an action is asserted against a county, RCW 36.01.05 shall control venue and jurisdiction. 1-04 SCOPE OF THE WORK 1-04.2 Coordination of Contract Documents, Plans, Special Provisions Specifications, and Addenda (March 31 2006 Tukwila GSP) Modification A nth Annr1 A....... ... 0 1"1 L....... 111 SP- 15 Revise the first sentence to also include in the contract the "Information for Bidderssection of these Contract Provisions Revise the second paragraph to read Any inconsistency in the parts of the contract shall be resolved by following this order of precedence (e g., 1 presiding over 2, 2 over 3. 3 over 4 and so forth): 1. Addenda, 2. Proposal Form, 3. Special Provisions. including APWA and Tukwila General Special Provisions. 4, Information for Bidders, 5 Contract Plans, 6. Amendments to the Standard Specifications, 7. WSDOTIAPWA Standard Specifications for Road: Bridge and Municipal Construction. 8. Contracting Agency's Standard Plans. and 9 WSDOT/APWA Standard Plans for Road, Bridge, and Municipal Construction. 1-04.4(1) Minor Changes (March 24, 2016 Tukwila GSP) Replacement Delete this section (including title) and replace it with the following: 1-04.4(1) Unexpected Site Changes Payments or credits for changes amounting to $15,000 or less may be made under the Bid item "Unexpected Site Changes", if included in the Bid Schedule. At the discretion of the Contracting Agency, this procedure for Unexpected Site Changes may be used in lieu of the more formal procedure as outlined in Section 1-04.4, Changes. The Contractor will be provided a copy of the completed order for Unexpected Site Changes. The agreement for the Unexpected Site Changes will be documented by signature of the Contractor, or notation of verbal agreement. If the Contractor is in disagreement with anything required by the order for Unexpected Site Changes, the Contractor may protest the order as provided in Section 1- 04.5. Payments will be determined in accordance with Section 1-09.6. For the purpose of providing a common Proposal for all Bidders, the Contracting Agency has entered an amount for "Unexpected Site Changes" in the Proposal to become a part of the total Bid by the Contractor. Credits will be determined in accordance with Section 1-09.4. 1-04.6 Variation in Estimated Quantities [delete if FHWA funded project] (July 23, 2015 APWA GSP, Option A; may not be used on FHWA-funded projects) Modification Revise the first paragraph to read: Payment to the Contractor will be made only for the actual quantities of Work performed and accepted in conformance with the Contract. When the accepted quantity of Work performed under a unit item varies from the original Proposal quantity, payment will be at the unit Contract price for all Work unless the total accepted quantity of any Contract item, adjusted to exclude added or deleted amounts included in change orders accepted by both parties, increases or decreases by more than 25 percent from the original Proposal quantity, and if the total extended bid price for that SP- 16 item at time of award is equal to or greater than $$1$$. In that case, payment for contract work may be adjusted as described herein. 1-04.11 Final Cleanup (March 31 2006 Tukwila GSP) Supplement Supplement this section with the folloving 3 Clean out all storm drain pipe and structures and any ditches that may have been filled during the workand replace damaged surfacing. 4 Clean all windows in buildings and leave buildings broom clean. Final cleanup costs are incidental to the Contract 1-05 CONTROL OF WORK 1-05.1 Authority of Engineer (March 31, 2006 Tukwila GSP) Modification Revise item 10 in the second paragraph to read: 10 Determination as to unworkable days and to whether or not a contract time extension is warranted, and 1-05.4 Conformity With And Deviations From Plans And Stakes Section 1-05.4 is supplemented with the following: (April 1, 2013 WSDOT GSP) Supplement Contractor Surveying - Roadway Copies of the Contracting Agency provided primary survey control data are available for the bidder's inspection at the office of the Project Engineer. The Contractor shall be responsible for setting, maintaining, and resetting all alignment stakes, slope stakes, and grades necessary for the construction of the roadbed, drainage, surfacing, paving, channelization and pavement marking, illumination and signals, guardrails and barriers, and signing. Except for the survey control data to be furnished by the Contracting Agency, calculations, surveying, and measuring required for setting and maintaining the necessary lines and grades shall be the Contractor's responsibility. The Contractor shall inform the Engineer when monuments are discovered that were not identified in the Plans and construction activity may disturb or damage the monuments. All monuments noted on the plans "DO NOT DISTURB" shall be protected throughout the length of the project or be replaced at the Contractor's expense. Detailed survey records shall be maintained, including a description of the work performed on each shift, the methods utilized, and the control points used. The record shall be adequate to allow the survey to be reproduced. A copy of each day's record shall be provided to the Engineer within three working days after the end of the shift. SP- 17 The meaning of words and terms used in this provision shall be as listed in "Definitions of Surveying and Associated Terms" current edition, published by the American Congress on Surveying and Mapping and the American Society of Civil Engineers. The survey work shall include but not be limited to the following: 1. Verify the primary horizontal and vertical control furnished by the Contracting Agency, and expand into secondary control by adding stakes and hubs as well as additional survey control needed for the project. Provide descriptions of secondary control to the Contracting Agency. The description shall include coordinates and elevations of all secondary control points. 2. Establish the centerlines of all alignments by placing hubs, stakes, or marks on centerline or on offsets to centerline at all curve points (PCs, PTs, and Pls) and at points on the alignments spaced no further than 50 feet. 3. Establish clearing limits, placing stakes at all angle points and at intermediate points not more than 50 feet apart. The clearing and grubbing limits shall be 5 feet beyond the toe of a fill and 10 feet beyond the top of a cut unless otherwise shown in the Plans. 4. Establish grading limits, placing slope stakes at centerline increments not more than 50 feet apart. Establish offset reference to all slope stakes. If Global Positioning Satellite (GPS) Machine Controls are used to provide grade control, then slope stakes may be omitted at the discretion of the Contractor. 5. Establish the horizontal and vertical location of all drainage features, placing offset stakes to all drainage structures and to pipes at a horizontal interval not greater than 25 feet. 6. Establish roadbed and surfacing elevations by placing stakes at the top of subgrade and at the top of each course of surfacing. Subgrade and surfacing stakes shall be set at horizontal intervals not greater than 50 feet in tangent sections, 25 feet in curve sections with a radius less than 300 feet, and at 10-foot intervals in intersection radii with a radius less than 10 feet. Transversely, stakes shall be placed at all locations where the roadway slope changes and at additional points such that the transverse spacing of stakes is not more than 12 feet. If GPS Machine Controls are used to provide grade control, then roadbed and surfacing stakes may be omitted at the discretion of the Contractor. 7. Establish intermediate elevation benchmarks as needed to check work throughout the project. 8. Provide references for paving pins at 25-foot intervals or provide simultaneous surveying to establish location and elevation of paving pins as they are being placed. 9. For all other types of construction included in this provision, (including but not limited to channelization and pavement marking, illumination and signals, guardrails and barriers, and signing) provide staking and layout as necessary to adequately locate, construct, and check the specific construction activity. 10. Contractor shall determine if changes are needed to the profiles or roadway sections shown in the Contract Plans in order to achieve proper smoothness and drainage where matching into existing features, such as a smooth transition from new pavement to existing pavement. The Contractor shall submit these changes to the Project Engineer for review and approval 10 days prior to the beginning of work. The Contractor shall provide the Contracting Agency copies of any calculations and staking data when requested by the Engineer. SP- 18 To facilitate the establishment of these lines and elevations, the Contracting Agency will provide the Contractor with primary survey control information consisting of descriptions of two primary control points used for the horizontal and vertical control, and descriptions of two additional primary control points for every additional three miles of project length. Primary control points will be described by reference to the project alignment and the coordinate system and elevation datum utilized by the project. In addil:ion, the Contracting Agency will supply horizontal coordinates for the beginning and ending points and for each Point of Intersection (PI) on each alignment included in the project. The Contractor shall ensure a surveying accuracy within the following tolerances: Slope stakes Subgrade grade stakes set 0.04 feet below grade Vertical Horizontal ±0.10 feet ±0.10 feet ±0.01 feet ±0.5 feet (parallel to alignment) ±0.1 feet (normal to alignment) Stationing on roadway N/A ±0.1 feet Alignment on roadway N/A ±0.04 feet Surfacing grade stakes ±0.01 feet ±0.5 feet (parallel to alignment) ±0.1 feet (normal to alignment) Roadway paving pins for surfacing or paving ±0.01 feet ±0.2 feet (parallel to alignment) ±0.1 feet (normal to alignment) The Contracting Agency may spot-check the Contractor's surveying. These spot-checks will not change the requirements for normal checking by the Contractor. When staking roadway alignment and stationing, the Contractor shall perform independent checks from different secondary control to ensure that the points staked are within the specified survey accuracy tolerances. The Contractor shall calculate coordinates for the alignment. The Contracting Agency will verify these coordinates prior to issuing approval to the Contractor for commencing with the work. The Contracting Agency will require up to seven calendar days from the date the data is received. Contract work to be performed using contractor -provided stakes shall not begin until the stakes are approved by the Contracting Agency. Such approval shall not relieve the Contractor of responsibility for the accuracy of the stakes. Stakes shall be marked in accordance with Standard Plan A10.10-00. When stakes are needed that are not described in the Plans, then those stakes shall be marked, at no additional cost to the Contracting Agency as ordered by the Engineer. 1-05.5 As-Bult Recording (March 31 2006 Tukwila GSP) Ne,v SP- 19 Add the following new section: Contractor shall record exact locations and dimensions of constructed features as the project progresses and show them on detailed and accurate redlined plans, which are clear enough to be used by Engineer to produce Record Drawings. The Contractor shall ensure an as -built surveying accuracy within the following tolerances, as well as following the requirements in Section 1-05.4 herein: Vertical Horizontal As -built invert and grate elevations +0.01 foot 0.01 foot As -built monumentation +0.001 foot +0.001 foot As -built pipe profiles +0.10 foot +0.10 foot As -built waterlines valves. hydrants N/A +0.10 foot As -built pondslswales/water features +0.10 foot +0.10 foot As -built buildings (fin. Floor elev.) +0.01 foot +0.10 foot As -built gas lines, power, TV, Tel, Com +1.00 foot +1.00 foot As -built channelization. signs, signals. etc. N/A +0.10 foot The Contractor shall bring the most current and up to date red -lined plan markups to each Weekly Coordination Meeting to show progress to the Engireer. Finalizing and producing the final complete red -lined markups will be a punchfst item. Project Completion will not be declared, nor will Final Acceptance or Final Payment be issued, until a complete set of Record Drawing markups is submitted. and the Engineer is satisfied as to its quality and accuracy. 1-05.7 Removal of Defective and Unauthorized Work (October 1, 2005 APWA GSP) Supplement Supplement this section with the following: If the Contractor fails to remedy defective or unauthorized work within the time specified in a written notice from the Engineer, or fails to perform any part of the work required by the Contract Documents, the Engineer may correct and remedy such work as may be identified in the written notice, with Contracting Agency forces or by such other means as the Contracting Agency may deem necessary. If the Contractor fails to comply with a written order to remedy what the Engineer determines to be an emergency situation, the Engineer may have the defective and unauthorized work corrected immediately, have the rejected work removed and replaced, or have work the Contractor refuses to perform completed by using Contracting Agency or other forces. An emergency situation is any situation when, in the opinion of the Engineer, a delay in its remedy could be potentially unsafe, or might cause serious risk of loss or damage to the public. Direct or indirect costs incurred by the Contracting Agency attributable to correcting and remedying defective or unauthorized work, or work the Contractor failed or refused to perform, shall be paid by the Contractor. Payment will be deducted by the Engineer from monies due, or to become due, the Contractor. Such direct and indirect costs shall include in particular, but without limitation, compensation for additional professional services required, and costs for repair and replacement of work of others destroyed or damaged by correction, removal, or replacement of the Contractor's unauthorized work. SP- 20 No adjustment in contract time or compensation will be allowed because of the delay in the performance of the work attributable to the exercise of the Contracting Agency's rights provided by this Section. The rights exercised under the provisions of this section shall not diminish the Contracting Agency's right to pursue any other avenue for additional remedy or damages with respect to the Contractor's failure to perform the work as required. 1-05.11 Final Inspection Delete this section and replace it with the following: 1-05.11 Final Inspections and Operational Testing (October 1, 2005 APWA GSP) Replacement 1-05.11(1) Substantial Completion Date When the Contractor considers the work to be substantially complete, the Contractor shall so notify the Engineer and request the Engineer establish the Substantial Completion Date. The Contractor's request shall list the specific items of work that remain to be completed in order to reach physical completion. The Engineer will schedule an inspection of the work with the Contractor to determine the status of completion. The Engineer may also establish the Substantial Completion Date unilaterally. If, after this inspection, the Engineer concurs with the Contractor that the work is substantially complete and ready for its intended use, the Engineer, by written notice to the Contractor, will set the Substantial Completion Date. If, after this inspection the Engineer does not consider the work substantially complete and ready for its intended use, the Engineer will, by written notice, so notify the Contractor giving the reasons therefor. Upon receipt of written notice concurring in or denying substantial completion, whichever is applicable, the Contractor shall pursue vigorously, diligently and without unauthorized interruption, the work necessary to reach Substantial and Physical Completion. The Contractor shall provide the Engineer with a revised schedule indicating when the Contractor expects to reach substantial and physical completion of the work. The above process shall be repeated until the Engineer establishes the Substantial Completion Date and the Contractor considers the work physically complete and ready for final inspection. 1-05.11(2) Final Inspection and Physical Completion Date When the Contractor considers the work physically complete and ready for final inspection, the Contractor by written notice, shall request the Engineer to schedule a final inspection. The Engineer will set a date for final inspection. The Engineer and the Contractor will then make a final inspection and the Engineer will notify the Contractor in writing of all particulars in which the final inspection reveals the work incomplete or unacceptable. The Contractor shall immediately take such corrective measures as are necessary to remedy the listed deficiencies. Corrective work shall be pursued vigorously, diligently, and without interruption until physical completion of the listed deficiencies. This process will continue until the Engineer is satisfied the listed deficiencies have been corrected. If action to correct the listed deficiencies is not initiated within 7 days after receipt of the written notice listing the deficiencies, the Engineer may, upon written notice to the Contractor, take whatever steps are necessary to correct those deficiencies pursuant to Section 1-05.7. Allth — A')nd Avcni io C _ Dhow III SP- 21 The Contractor will not be allowed an extension of contract time because of a delay in the performance of the work attributable to the exercise of the Engineer's right hereunder. Upon correction of all deficiencies, the Engineer will notify the Contractor and the Contracting Agency, in writing, of the date upon which the work was considered physically complete. That date shall constitute the Physical Completion Date of the contract, but shall not imply acceptance of the work or that all the obligations of the Contractor under the contract have been fulfilled. 1-05.11(3) Operational Testing It is the intent of the Contracting Agency to have at the Physical Completion Date a complete and operable system. Therefore when the work involves the installation of machinery or other mechanical equipment; street lighting, electrical distribution or signal systems; irrigation systems; buildings; or other similar work it may be desirable for the Engineer to have the Contractor operate and test the work for a period of time after final inspection but prior to the physical completion date. Whenever items of work are listed in the Contract Provisions for operational testing they shall be fully tested under operating conditions for the time period specified to ensure their acceptability prior to the Physical Completion Date. During and following the test period, the Contractor shall correct any items of workmanship, materials, or equipment which prove faulty, or that are not in first class operating condition. Equipment, electrical controls, meters, or other devices and equipment to be tested during this period shall be tested under the observation of the Engineer, so that the Engineer may determine their suitability for the purpose for which they were installed. The Physical Completion Date cannot be established until testing and corrections have been completed to the satisfaction of the Engineer. The costs for power, gas, labor, material, supplies, and everything else needed to successfully complete operational testing, shall be included in the unit contract prices related to the system being tested, unless specifically set forth otherwise in the proposal. Operational and test periods, when required by the Engineer, shall not affect a manufacturer's guaranties or warranties furnished under the terms of the contract. 1-05.12(1) One -Year Guarantee Period (March 8, 2013 APWA GSP, may not be used on FHWA funded projects) New Add the following new section: The Contractor shall return to the project and repair or replace all defects in workmanship and material discovered within one year after Final Acceptance of the Work. The Contractor shall start work to remedy any such defects within 7 calendar days of receiving Contracting Agency's written notice of a defect, and shall complete such work within the time stated in the Contracting Agency's notice. In case of an emergency, where damage may result from delay or where loss of services may result, such corrections may be made by the Contracting Agency's own forces or another contractor, in which case the cost of corrections shall be paid by the Contractor. In the event the Contractor does not accomplish corrections within the time specified, the work will be otherwise accomplished and the cost of same shall be paid by the Contractor. When corrections of defects are made, the Contractor shall then be responsible for correcting all defects in workmanship and materials in the corrected work for one year after acceptance of the corrections by Contracting Agency. This guarantee is supplemental to and does not limit or affect the requirements that the Contractor's work comply with the requirements of the Contract or any other legal rights or remedies of the Contracting Agency. SP- 22 1-05.13 Superintendents, Labor and Equipment of Contractor (August 14, 2013 APWA GSP) Modification Delete the sixth and seventh paragraphs of this section. 1-05.14 Cooperation with Other Contractors (March 31. 2006 Tu'<wrla GSP) Supplement Supplement this section with the following Contractor shall allow the Contracting Agency and othe' contractors working in the area reasonable opportanity for ,he introduction and storage of their materials and the execLtion of their respective work and Contactor shall properly connect ar,d ccordinate 'ts work with theirs Other utilites districts agencies and/or contractors who may be working vrltn n the project area are as follows Puget Sound Energy/Gas = Val V,ae Sewer District Puget Sound Energy/Power = King County (Transit and Sewer) Comcast Cable Services r• Water District 125 City of Tukwila = Highl:ne Water District Centurylink Communications e Seattle Public Uti'iities Seattle City Light - Washington State Department of Transportation (WSDOT) e i ti"' Cc is, r )1 re. Note that the following described "Other Contracts or Other Work" contains phasing and durations of utility crews and/or their agents. Under 1-08.3(2)B Type B Progress Schedule, the Contractor is to incorporate the described phasing and durations into their baseline schedule, then update the baseline schedule monthly as the activities of the "Other Contracts or Other Work" is coordinated into the Contractor's work activities. Temporary Utility Support As shown in Appendix F, PSE will be placing a temporary gas main support over Gilliam Creek. PSE will use this temporary support to hang their gas lines. The Contractor shall use this same support to hang the temporary Valley View Sewer bypass system. The Contractor shall coordinate with PSE and their representatives in the installation of the support system. The Contractor is to anticipate that PSE contractors and/or representatives will need up to 2 weeks to install the support system. The Contractor is to coordinate this 2 weeks with PSE and incorporate said support installation into their three week and baseline schedules. It is anticipated that PSE will need up to 1 week to remove the support system. The Contractor is to coordinate this removal with PSE and incorporate said removal into their three week look ahead and baseline schedule. Utility Cut Overs Utility cut overs is the work performed by the utilities in moving aerial services to underground. The Contractor's work supporting the cut overs is described in these special provisions under 8-32: JOINT UTILITY TRENCH FOR COMMUNICATIONS, 8-33: SEATLE CITY LIGHT ELECTRICAL DUCT BANK, 8-34: PRIVATE JOINT UTILITY TRENCH and 8-35: FRANCHISE UTILTIY COORDINATION. The Contractor is to coordinate with the City, Seattle City Light, Comcast, Century Link and Zayo to incorporate utility work for the cut overs into the baseline and three week look ahead schedules. The Contractor's baseline and three week look ahead schedules shall include: Anth Annd C Dk-, III SP- 23 1.) The suspension period as described but not limited to Special Provisions sections 1- 07.23(1), 1-08.6, 8-32 and 8-33. 2.) The Contractor's anticipated substantial completion dates for the 8-32: JOINT UTILITY TRENCH FOR COMMUNICATIONS and 8-33: SEATLE CITY LIGHT ELECTRICAL DUCT BANK. 3.) Furthermore the baseline and three week look ahead schedules shall include the following assumptions: For both 8-32: JOINT UTILITY TRENCH FOR COMMUNICATIONS and 8-33: SEATTLE CITY LIGHT ELECTRICAL DUCT BANK, the Contractor shall request substantial completion concurrence. The Contractor shall assume that within 15 working days of their request for substantial completion, each utility will inspect their respective ducts and generate a punch list. The Contractor shall assume that following the 15 days for the generated punch list, another 15 working days will be required for the Contractor to address the punch list issues and secure City concurrence of substantial completion for the duct work. These two 15 working day activities will be shown on the Contractor's baseline and three week look ahead schedule. Seattle City Light (SCL): Upon concurrence of the substantial completion request for 8-33: SEATTLE CITY LIGHT ELECTRICAL DUCT BANK, the City anticipates SCL crews will be on site for cut over of the power from above ground, to underground. The Contractor shall assume this cut over to take place during the suspension period. The Contractor is to show the SCL crew work windows on the baseline and 3 week look ahead schedules. Comcast, Century Link and Zayo: Upon concurrence of the substantial completion request for 8-32: JOINT UTILITY TRENCH FOR COMMUNICATIONS, the City anticipates Comcast, Century Link and Zayo to be on site for the cut over of their respective utilities from above ground, to underground and for their work to take place during the suspension period. The Contractor is to show the Comcast, Century Link and Zayo crew work windows on the baseline and three week look ahead schedules. 1-05.14(1) Notifications Relative to Contractor's Activities (March 31. 2006 Tukwila GSP) New Add the fol owing new section: The Contractor shad give written notification to the Engineer, to all adjacent property owners (including land owner, building owner. business owner and tenants), and to the following listed agencies and individuals, in time for them to receive such notice at least 3 calendar days prior to commencement of any Work. or significant change in type of work or impacts. on the Project site. This notification must include: o the time of the commencement and completion of work o names of streets or locations of alleys to be closed o routes of detours where possible • schedule of operations d name(s) and phone number(s) of the construction superintendent in responsible charge • names of individua:s having full authority to execute the orders or directions of the Engineer. in the event of an emergency Include phone numbers with 24/7 availability. SP- 24 The Contractor shah copy trie Ergineer on all communications with others related to this project whether written or logs of phore conversations The following addresses and telephone numbers of private. public. franchise ut:l ties county. state and city services are supplied for the Contractor's use and convenience. Valley Communications Center (operates 911 for South King County) (253) 372-1300 City of Tukwila Police Department Telephone, (206) 433. 1808 Fax (206) 244-6181 6200 Southcenter Boulevard Tukwila Washington 98188 Tukwila School District Attn J.D. Hill, Transportation Manager Telephone. (206) 901-7922 4640 S 144' St Tukwila, Washington 98168 King County Water Pollution Control Division Attn Mr. Eric Davidson, MS KSC-NR-0508 Telephone: (206) 684 1707 FAX: (206) 684-1710 201 S Jackson St Seattle, Washington 98104-3855 United States Postal Service Delivery Manager for 98168/98178 Telephone. (206) 242-3522 Puget Sound Energy 24 Hour Call -Out Telephone: (206) 464 1999 805 156th NE Bellevue, Washington 98007 Century Link Communications Attn Robert Bair Telephone (253) 372-5388 Cell 253-831.2059 Fax (253) 372-5176 23315 66th Avenue South Kent. Washington 98032 City of Tukwila Fire Department Telephone (206) 575-4404 Fax (206) 575-4439 6200 Southcenter Boulevard Tukwila Washington 98188 City of Tukwila Maintenance Shops Attn. Mr Pat Brodin, Operations Manager Te'ephone (205) 431-1860 Fax: (206) 575-3404 600 Minkler Boulevard TuKwi'a. Washington 98188 Utilities Underground Location Center 1-800-424 5555 King County/ Metro Transit Attn: Construction Information Center Telephone (206) 684,2732 1270 - 6th Avenue S. MS -OS Seattle Washington 98134 Seattle City Light Attn: Joe Hampton PO Box 34023 Seattle, Wasnington 98124-4023 Telephone: (206) 684-5046 Puget Sound Energy Attn: Will Foster 355 110th Ave NE Bellevue, WA 98004 Telephone Desk (425) 462-3947 Celi 253-332-2857 General Information 1-888-225-5773 Highline Water District .;eremy Del Mar 23828 30th Ave S. Kent, WA 98032 206.592 8904 (office) 206 824 0806 (fax) www.highline:vater org SP- 25 Comcast Cable Services Attn: Bill Wacker Telephone: (253) 288-7532, c. (253) 391-1763 4020 Auburn Way N Auburn, Washington 98002 Valley View Sewer Dana Dick 3460 S. 148th St Suite 100 Tukwila. WA 98168 206-242-3236 (Office) 206-242-1527 (Fax) King County Water District 125 Mark Parsons 3160 S. 148th Street, Suite 110 Tukwila. WA 98168 206-242-9547 (office) 206-248-1744 (fax) Markparsons©waterdistrict125.com office@waterdistrict125.com www.waterdistrict125 com ZAYO Tim Sypowicz OSP Project Manager — Pacific Northwest 7905 South 196th Street Kent WA. 98303 253-617-0256 (Office) 253-549-9100 (ivtobile) WSDOT NW Region Traffic Signal Maintenance Attn: John Merriman Telephone: (206) 764-4010. c. (206) 799-7005 P.O. Box 33010 Seattle, Washington 98133-9710 WSDOT Maintenance/Area 5 (15 n/o 178th & SR599) Attn: Phil George Telephone: (425) 822-4161 10833 Northrup Way NE Bellevue. Washington 98004 1-05.15 Method of Serving Notices (March 25, 2009 APWA GSP) Revise the second paragraph to read: WSDOT Maintenance/Area 4 (15 slo 178th & SR518) Attn- Don Komac Telephone: (253) 872-6470 26620 68th Avenue S Kent, Washington 98032 Modification All correspondence from the Contractor shall be directed to the Project Engineer. All correspondence from the Contractor constituting any notification, notice of protest, notice of dispute, or other correspondence constituting notification required to be furnished under the Contract, must be in paper format, hand delivered or sent via mail delivery service to the Project Engineer's office. Electronic copies such as e-mails or electronically delivered copies of correspondence will not constitute such notice and will not comply with the requirements of the Contract. 1-05.16 Water and Power (October 1, 2005 APWA GSP) New Add the following new section: The Contractor shall make necessary arrangements, and shall bear the costs for power and water necessary for the performance of the work, unless the contract includes power and water as a pay item. 1-05.18 Contractor's Daily Diary (March 31. 2006 Tukwila GSP) New Add the following new section: SP- 26 The Contractor and subcontractors shall maintain daily. a Daily Diary Record of the Work. The Diary must be kept and maintained by Contractor s designated project superintendent(s) Entries must be made on a daily basis and must accurately represent all of the prcject activities on each day Provide signed copies of diary sheets for the previous week to Engineer at each Weekly Coordination Meeting or within one week Every single diary sheet/page must have ▪ Project name & number; • Consec.ative numbenng of pages and o Typed cr printed name signature. and date of the person making the entry. At a minimum, the diary shall, for each day have a separate entry detailing each of the following 1. Day and date. 2. Weather conditions, including changes throughout the day. 3 Complete description of work accomplished during the day. with adequate references to the Plans a id Contract Provisions so the reader can easily and accuratey identify said work on the Plans. Identify location/description of photographs or videos taken that day. 4. Each and every changed condition, dispute or potential dispute, incident, accident, or occurrence of ary nature whatsoever which might affect Contractor, Contracting Agency. or any third party in any manner. 5 List all materials received and stored on- or off -site by Contractor that day for future installation, including the manner of storage and protection of the same. 6 List ma erials installed that day. 7. List ail subcontractors working on -site that day. 8 List the number of Contractor's employees work;ng during each day, by category of employment. 9. List Contractor's equipment on the site than day: showing wh ch were in use, and which idle 10 Notations to explain inspections testing stake -out. and all other services furnished by Contracting Agency or other party during the day. 11 Ve-ify the daily (including non -work days) inspection and maintenance of traffic control devices and condition of the traveled roadway surfaces. 12 Any other information that serves to give an accurate and complete record of the nature quantity. and quality of Contractor's progress on each day It 's express y agreed between Contractor and Contracting Agency that the Daily Diary maintained by Contractor shall be the "Contractor's Book of Orig+na' Entry" for the documentation of any potential claims or disputes that might arise during this Contract Failure of Contractor to maintain this Diary in the manner described above wi'i constitute a waiver of any suc7 claims or disputes by Contractor. Engineer or hs representative on the job site will also complete a Daily Cons:ruction Report 1-06 CONTROL OF MATERIAL 1-06.1(4) Fabrication Inspection Expense (June 27, 2011 AWPA GSP) Replacement SP- 27 Delete this section in its entirety. 1-06.6 Recycled Materials (January 4, 2016 APWA GSP) Replacement Delete this section, including its subsections, and replace it with the following: The Contractor shall make their best effort to utilize recycled materials in the construction of the project. Approval of such material use shall be as detailed elsewhere in the Standard Specifications. Prior to Physical Completion the Contractor shall report the quantity of recycled materials that were utilized in the construction of the project for each of the items listed in Section 9-03.21. The report shall include hot mix asphalt, recycled concrete aggregate, recycled glass, steel furnace slag and other recycled materials (e.g. utilization of on -site material and aggregates from concrete returned to the supplier). The Contractor's report shall be provided on DOT form 350-075 Recycled Materials Reporting. 1-07 LEGAL RELATIONS AND RESPONSIBILITIES TO THE PUBLIC 1-07.1 Laws to be Observed (October 1, 2005 APWA GSP) Supplement Supplement this section with the following: In cases of conflict between different safety regulations, the more stringent regulation shall apply. The Washington State Department of Labor and Industries shall be the sole and paramount administrative agency responsible for the administration of the provisions of the Washington Industrial Safety and Health Act of 1973 (WISHA). The Contractor shall maintain at the project site office, or other well known place at the project site, all articles necessary for providing first aid to the injured. The Contractor shall establish, publish, and make known to all employees, procedures for ensuring immediate removal to a hospital or doctor's care persons, including employees, who may have been injured on the project site. Employees should not be permitted to work on the project site before the Contractor has established and made known procedures for removal of injured persons to a hospital or a doctor's care. The Contractor shall have sole responsibility for the safety, efficiency, and adequacy of the Contractor's plant, appliances, and methods, and for any damage or injury resulting from their failure, or improper maintenance, use, or operation. The Contractor shall be solely and completely responsible for the conditions of the project site, including safety for all persons and property in the performance of the work. This requirement shall apply continuously, and not be limited to normal working hours. The required or implied duty of the Engineer to conduct construction review of the Contractor's performance does not, and shall not, be intended to include review and adequacy of the Contractor's safety measures in, on, or near the project site. 1-07.2 State Taxes Delete this section, including its sub -sections, in its entirety and replace it with the following: 1-07.2 State Sales Tax (June 27, 2011 APWA GSP) Replacement SP- 28 The Washington State Department of Revenue has issued special rules on the State sales tax. Sections 1-07.2(1) through 1-07.2(3) are meant to clarify those rules. The Contractor should contact the Washington State Department of Revenue for answers to questions in this area. The Contracting Agency will not adjust its payment if the Contractor bases a bid on a misunderstood tax liability. The Contractor shall include all Contractor -paid taxes in the unit bid prices or other contract amounts. In some cases, however, state retail sales tax will not be included. Section 1-07.2(2) describes this exception. The Contracting Agency will pay the retained percentage (or release the Contract Bond if a FHWA- funded Project) only if the Contractor has obtained from the Washington State Department of Revenue a certificate showing that all contract -related taxes have been paid (RCW 60.28.051). The Contracting Agency may deduct from its payments to the Contractor any amount the Contractor may owe the Washington State Department of Revenue, whether the amount owed relates to this contract or not. Any amount so deducted will be paid into the proper State fund. 1-07.2(1) State Sales Tax— Rule 171 WAC 458-20-171, and its related rules, apply to building, repairing, or improving streets, roads, etc., which are owned by a municipal corporation, or political subdivision of the state, or by the United States, and which are used primarily for foot or vehicular traffic. This includes storm or combined sewer systems within and included as a part of the street or road drainage system and power lines when such are part of the roadway lighting system. For work performed in such cases, the Contractor shall include Washington State Retail Sales Taxes in the various unit bid item prices, or other contract amounts, including those that the Contractor pays on the purchase of the materials, equipment, or supplies used or consumed in doing the work. 1-07.2(2) State Sales Tax — Rule 170 WAC 458-20-170, and its related rules, apply to the constructing and repairing of new or existing buildings, or other structures, upon real property. This includes, but is not limited to, the construction of streets, roads, highways, etc., owned by the state of Washington; water mains and their appurtenances; sanitary sewers and sewage disposal systems unless such sewers and disposal systems are within, and a part of, a street or road drainage system; telephone, telegraph, electrical power distribution lines, or other conduits or lines in or above streets or roads, unless such power lines become a part of a street or road lighting system; and installing or attaching of any article of tangible personal property in or to real property, whether or not such personal property becomes a part of the realty by virtue of installation. For work performed in such cases, the Contractor shall collect from the Contracting Agency, retail sales tax on the full contract price. The Contracting Agency will automatically add this sales tax to each payment to the Contractor. For this reason, the Contractor shall not include the retail sales tax in the unit bid item prices, or in any other contract amount subject to Rule 170, with the following exception. Exception: The Contracting Agency will not add in sales tax for a payment the Contractor or a subcontractor makes on the purchase or rental of tools, machinery, equipment, or consumable supplies not integrated into the project. Such sales taxes shall be included in the unit bid item prices or in any other contract amount. 1-07.2(3) Services The Contractor shall not collect retail sales tax from the Contracting Agency on any contract wholly for professional or other services (as defined in Washington State Department of Revenue Rules 138 and 244). SP- 29 1-07.5 Environmental Regulations (September 20, 2010 WSDOT GSP) Supplement Section 1-07.5 is supplemented with the following: Environmental Commitments The following Provisions summarize the requirements, in addition to those required elsewhere in the Contract, imposed upon the Contracting Agency by the various documents referenced in the Special Provision Permits and Licenses. Throughout the work, the Contractor shall comply with the following requirements: Note to Designer: If City has obtained an HPA or other Federal permit for the project, select the appropriate WSDOT GSP's with the correct permit conditions. If NOT applicable, delete header and this section. Payment (August 3, 2009 WSDOT GSP) Supplement All costs to comply with this special provision for the environmental commitments and requirements are incidental to the contract and are the responsibility of the Contractor. The Contractor shall include all related costs in the associated bid prices of the contract. Note to Designer: Remove payment section if not applicable. 1-07.5(5) Noise Regulations (March 31, 2006 Tukwila GSP) New Add the following new section. Contractor shall also comply with the City of Tukwila Municipal Code. witi special emphasis on Chapter 8.22 — Noise, which is hereby made a part of the Contract Documents. A copy of this environmental provision is available to Contractor at Engineer's office. 1-07.6 Permits and Licenses (March 31. 2006 Tukwila GSP) Supplement Supplement this section with the following The easements and license to construct documents that have been acgaired are available for inspection and review at Engineer's office. Contractor shall comply with ali cond tior..s of the permits. easements. and Incenses to construct, at no additional cost to Contracting Agency. Contractor shall indemnify Contracting Agency from all claims that may arise due to Contractors actions related to any of these requirements, in the same manner as detailed ;n Section 1-07.1 of the Standard Specifications Contractor shall fully restore all property wsthin the easements or licenses .o construct See also Section 1-07.16 of the Standard Specifications and Special Provisions. Permits permiss.on under franchises licenses. and bonds of a temporary nature necessary for and during the prosecution of the work, and inspection fees in connection therewith shall be secured and paid for by Contractor. SP- 30 Where Contracting Agency is required to secure permits, permission under franchises licenses. and bonds, any and all costs incurred by Contracting Agency due to violation(s) by the Contractor of the permits/franchises/licenses/bonds or any other law or regulation shall be charged against Contractor and offset by Contracting Agency against the Contract price 1-07.6 Permits and Licenses Note to Designer: Designer must insert the proper WSDOT GSP dependent upon the project's need for a Construction Stormwater General Permit. There are two GSP options to choose from. Designer shall insert the proper GSP and delete the unused option. (Option 1) (August 3, 2015 WSDOT GSP) Supplement Section 1-07.6 is supplemented with the following: The Contracting Agency has obtained the below -listed permit(s) for this project. A copy of the permit(s) is attached as an appendix for informational purposes. Copies of these permits and a copy of the Transfer of Coverage form submitted to Ecology for the Construction Stormwater General Permit are required to be onsite at all times Contact with the permitting agencies, concerning the below -listed permit(s), shall be made through the Engineer with the exception of the Construction Stormwater General Permit where direct communication with the Ecology is allowed. The Contractor shall be responsible for obtaining Ecology's approval for any Work requiring additional approvals (e.g. Request for Chemical Treatment Form). The Contractor shall obtain additional permits as necessary. All costs to obtain and comply with additional permits shall be included in the applicable Bid items for the Work involved. Hydraulic Project Approval Permit Number: 2014-4-350+01 1-07.7 Load Limits 1-07.7(1) General (August 1 2006 Tukwila GSP) Supplement Supplement this section with the following The Contractor shall, at the Contractor's expense. make all arrangements for use of all haul routes. 1-07.9(3) Apprentices (February 28. 2014 Tukwila GSP) Supplement Supp emert this section with the following A APPRENTICE UTILIZATION REQUIREMENTS 1 The Contractor shall ensure that ten percent (10%) of the total contrac the Project site are performed by apprentices registered with Apprenticeship and Training Counci', here`neer known as SAC. abor hours utilized on e Wash ngton State a. Total contract labor hours incude additional hours worked as a result of change orders b Total contract labor hours exclude hours worked by foremen. superintendents supervisors owners, and workers who are not subject to prevailing wage requirements. Anth A')nd A,.esn. C __ DI.,noo 111 SP- 31 However, total contract labor hours shall include the hours worked by supervisors. foremen, and superintendents if it is determined that they are subject to prevailing wage requirements pursuant to the following criteria of WAC 296-127-015. (2) Supervisors (e.g foremen, general foremen, superintendents etc.) are entitled to receive at least the journey level prevailing rate of wage for performing manual or physical labor. For each hour spent in the performance of manual or physical !abor if it is for more than twenty percent but less than fifty percent of their hours worked on a public works project during any given week. For all hours worked in any given week if they per orm manual or physical labor for fifty percent or more of their hours worked on a public works project during such week. 2 The Contractor shall ensure compliance with the apprenticeship training standards for each trade/craft classification used on the Project, as set forth by the Washington State Department of Labor and Industries. B. APPRENTICE UTILIZATION PLAN At the Preconstruction Meeting. the Contractor shall submit to the City, a comprehensive plan outlining how the apprentice utilization requirements will be met on the total contract labor hours. The plan shall include the following information. on a form :o be provided by the City: a. A list of trades/crafts to be used on the Project, including an estimate of labor hours by each trade/craft and the total labor hours to be used. b. An estimate of the number of apprentices for each trade/craft to be used on the Project. c An estimate of the number of apprentice labor hours and percentage to be used by each trade/craft on the Project. The combined total number of apprentice hours used must equal or exceed ten percent (10%) of total contract labor hours as defined in subsection A.1. An estimate of the percentage of apprentice labor hours to be used by each trade/craft. The percentage of apprentice labor hours must be based on the estimate of total labor hours by each trade/craft. e An estimate of the start date of each trade/craft. A description of efforts the Contractor intends to make to ensure that the apprentice utilization requirement is met. 2 The City will provide assstance in directing the Contractor to available resources for hiring apprentices. 3 The Contractor the Engineer, and the Project Manager shall meet to discuss and modify the plan as may be appropriate C. QUARTERLY STATEMENT OF APPRENTICE PARTICIPATION 1 The Contractor shall submit to the City's Representative a Quarterly Statement of Apprentice Participation in an electronic format to be provided by the City, for the Contractor SP- 32 and al; subcontractors The Quarterly Statement of Apprentice Participation shall be completed by the Contractor and all subcortractors performing work on the Project durng the reporting period. The report shall be submitted by the 30" of the month following the reporting period to the City's Representative The Contractor shall be responsible for reporting apprentice utilization data required by the City beginning with the first day of work for each apprentice. The Contractor's first submittals are due at the end of the first month after the Contract start date specified in the Notice to Proceed and at quarterly intervals thereafter. until the Physical Completion Date has been established. Subcontractor submittals are due at the end of the quarter after commencement of their work and quarterly thereafter 3. The Contractor shah report the following information on each apprentice. a Apprentice's Name. b Trade/Craft c State Apprentice Registration I.D. Number. d Labor hours for Reporting Period. 4 The Contractor shall report the following information on journey level employees: a. Total journey level labor hours (for each trade/craft) and number of employees to date. 5. The Contractor shall submit such other information as may be requested by the City to verify compliance with the apprentice utilization requirements of the Contract. The City reserves the right to add, delete. or change as necessary the information required by the Contractor on the Quarterly Statement of Apprentice Participation, D APPRENTICE UTILIZATION MONITORING The City shall verify the registration of each apprentice used on the Project with the Washington State Apprerticeship and Training Council 2 The City shall monitor the apprentice utilization data provided by the Contractor. I n the event that the Contractor is deficient in the use of apprentices. as shown in the Quarterly Statement of Apprentice Participation: the Engineer shah meet with the Contractor to discuss the reasons for the deficiency and the Contractor shall develop a written plan for meeting the requirement. Thereafter. any deficiency in the work of Apprentices as reported in the Quarterly Statement of Apprentice Participation sha l be deemed a breach of contract subject to remedy allowed by law and under this contract. 3. The Engineer will make routine v.sits to tne Project site for the purpose of confirming the use of apprentices. E CHANGES TO THE APPRENTICE UTILIZATION REQUIREMENT If during the term of tne contract. the Contractor determ°nes It will be unable to meet the apprentice utlization percentage required by Paragraph A. the Contractor may mace a written request to the Frgineer to reduce the apprentice utilization percentage The request shall include documentation of the Contractor's affirmative efforts to use SAC registered apprentices. including copies of correspordence between the Contractor and the SAC approved apprentice programs. union locals and others. These documents must demonstrate SP- 33 that an inadequate number of apprentices are available to meet the required apprentice utilization percentage or that there are other specified extenuatng circt instances that prevent the Contractor from reasonably meeting the required apprentice utilization percentage. 2 The Engineer shall evaluate the request. and if appropriate. a change crder shall be prepared by the Engineer reducing the required utilization percentage. If the. Engineer determines that a reducton in the requ red utilization is not justified, the Engineer shall communicate the decision to the Contractor. 1-07.16(1) Private/Public Property (March 31 2006 Tukwila GSP) Supplement Supplement this section with the following: Contractor shall maintain jobsite ail streets used by it, and utiiites in a nea" orderly. workmanlike, and usable condition Contractor shall clean up on a daily basis all ,efuse, rubbish, scrap material, and debris caused by his operations, including sweeping of streets. In the event Contractor fails to conform to these requirements, Contracting Agency shall have the right to have the work done by others and the cost shall be deducted from moneys due to Contractor. 1-07.16(3) Fences, Mailboxes, Incidentals (March 31. 2006 Tukwila GSP) Supplement Supplement this section with the following Contractor shall coordinate mail delivery service with the US Postal Service. for all mailboxes that are impacted by construction. Contact the Delivery Manager at 206-242-3522 at the Riverton Post Office. 1-07.18 Public Liability and Property Damage Insurance Delete this section in its entirety and replace it with the following: 1-07.18 Insurance (January 4, 2016 APWA GSP) Replacement 1-07.18(1) General Requirements A. The Contractor shall procure and maintain the insurance described in all subsections of section 1-07.18 of these Special Provisions, from insurers with a current A. M. Best rating of not less than A-: VII and licensed to do business in the State of Washington. The Contracting Agency reserves the right to approve or reject the insurance provided, based on the insurer's financial condition. B. The Contractor shall keep this insurance in force without interruption from the commencement of the Contractor's Work through the term of the Contract and for thirty (30) days after the Physical Completion date, unless otherwise indicated below. C. If any insurance policy is written on a claims made form, its retroactive date, and that of all subsequent renewals, shall be no later than the effective date of this Contract. The policy shall state that coverage is claims made, and state the retroactive date. Claims -made form coverage shall be maintained by the Contractor for a minimum of 36 months following the Completion SP- 34 Date or earlier termination of this Contract, and the Contractor shall annually provide the Contracting Agency with proof of renewal. If renewal of the claims made form of coverage becomes unavailable, or economically prohibitive, the Contractor shall purchase an extended reporting period ("tail") or execute another form of guarantee acceptable to the Contracting Agency to assure financial responsibility for liability for services performed. D. The Contractor's Automobile Liability, Commercial General Liability and Excess or Umbrella Liability insurance policies shall be primary and non-contributory insurance as respects the Contracting Agency's insurance, self-insurance, or self -insured pool coverage. Any insurance, self-insurance, or self -insured pool coverage maintained by the Contracting Agency shall be excess of the Contractor's insurance and shall not contribute with it. E. The Contractor shall provide the Contracting Agency and all additional insureds with written notice of any policy cancellation, within two business days of their receipt of such notice. F. The Contractor shall not begin work under the Contract until the required insurance has been obtained and approved by the Contracting Agency G. Failure on the part of the Contractor to maintain the insurance as required shall constitute a material breach of contract, upon which the Contracting Agency may, after giving five business days' notice to the Contractor to correct the breach, immediately terminate the Contract or, at its discretion, procure or renew such insurance and pay any and all premiums in connection therewith, with any sums so expended to be repaid to the Contracting Agency on demand, or at the sole discretion of the Contracting Agency, offset against funds due the Contractor from the Contracting Agency. H. All costs for insurance shall be incidental to and included in the unit or lump sum prices of the Contract and no additional payment will be made. 1-07.18(2) Additional Insured All insurance policies, with the exception of Workers Compensation, and of Professional Liability and Builder's Risk (if required by this Contract) shall name the following listed entities as additional insured(s) using the forms or endorsements required herein: • the Contracting Agency and its officers, elected officials, employees, agents, and volunteers • $$1$$ • $$2$$ • $$3$$ The above -listed entities shall be additional insured(s) for the full available limits of liability maintained by the Contractor, irrespective of whether such limits maintained by the Contractor are greater than those required by this Contract, and irrespective of whether the Certificate of Insurance provided by the Contractor pursuant to 1-07.18(4) describes limits lower than those maintained by the Contractor. For Commercial General Liability insurance coverage, the required additional insured endorsements shall be at least as broad as ISO forms CG 20 10 10 01 for ongoing operations and CG 20 37 10 01 for completed operations. 1-07.18(3) Subcontractors The Contractor shall cause each Subcontractor of every tier to provide insurance coverage that complies with all applicable requirements of the Contractor -provided insurance as set forth herein, SP- 35 except the Contractor shall have sole responsibility for determining the limits of coverage required to be obtained by Subcontractors. The Contractor shall ensure that all Subcontractors of every tier add all entities listed in 1-07.18(2) as additional insureds, and provide proof of such on the policies as required by that section as detailed in 1-07.18(2) using an endorsement as least as broad as ISO CG 20 10 10 01 for ongoing operations and CG 20 37 10 01 for completed operations. Upon request by the Contracting Agency, the Contractor shall forward to the Contracting Agency evidence of insurance and copies of the additional insured endorsements of each Subcontractor of every tier as required in 1-07.18(4) Verification of Coverage. 1-07.18(4) Verification of Coverage The Contractor shall deliver to the Contracting Agency a Certificate(s) of Insurance and endorsements for each policy of insurance meeting the requirements set forth herein when the Contractor delivers the signed Contract for the work. Failure of Contracting Agency to demand such verification of coverage with these insurance requirements or failure of Contracting Agency to identify a deficiency from the insurance documentation provided shall not be construed as a waiver of Contractor's obligation to maintain such insurance. Verification of coverage shall include: 1. An ACORD certificate or a form determined by the Contracting Agency to be equivalent. 2. Copies of all endorsements naming Contracting Agency and all other entities listed in 1-07.18(2) as additional insured(s), showing the policy number. The Contractor may submit a copy of any blanket additional insured clause from its policies instead of a separate endorsement. 3. Any other amendatory endorsements to show the coverage required herein. 4. A notation of coverage enhancements on the Certificate of Insurance shall not satisfy these r equirements — actual endorsements must be submitted. Upon request by the Contracting Agency, the Contractor shall forward to the Contracting Agency a full and certified copy of the insurance policy(s). If Builders Risk insurance is required on this Project, a full and certified copy of that policy is required when the Contractor delivers the signed Contract for the work. 1-07.18(5) Coverages and Limits The insurance shall provide the minimum coverages and limits set forth below. Contractor's maintenance of insurance, its scope of coverage, and limits as required herein shall not be construed to limit the liability of the Contractor to the coverage provided by such insurance, or otherwise limit the Contracting Agency's recourse to any remedy available at law or in equity. All deductibles and self -insured retentions must be disclosed and are subject to approval by the Contracting Agency. The cost of any claim payments falling within the deductible or self -insured retention shall be the responsibility of the Contractor. In the event an additional insured incurs a liability subject to any policy's deductibles or self -insured retention, said deductibles or self -insured retention shall be the responsibility of the Contractor. 1-07.18(5)ACommercial General Liability Commercial General Liability insurance shall be written on coverage forms at, least as broad as ISO occurrence form CG 00 01, including but not limited to liability arising from premises, operations, SP- 36 stop gap liability, independent contractors, products -completed operations, personal and advertising injury, and liability assumed under an insured contract. There shall be no exclusion for liability arising from explosion, collapse or underground property damage. The Commercial General Liability insurance shall be endorsed to provide a per project general aggregate limit, using ISO form CG 25 03 05 09 or an equivalent endorsement. Contractor shall maintain Commercial General Liability Insurance arising out of the Contractor's completed operations for at least three years following Substantial Completion of the Work. Such policy must provide the following minimum limits: $1,000,000 $2,000,000 $2,000,000 $1,000,000 $1,000,000 Each Occurrence General Aggregate Products & Completed Operations Aggregate Personal & Advertising Injury each offence Stop Gap / Employers' Liability each accident 1-07.18(5)B Automobile Liability Automobile Liability shall cover owned, non -owned, hired, and leased vehicles; and shall be written on a coverage form at least as broad as ISO form CA 00 01. If the work involves the transport of pollutants, the automobile liability policy shall include MCS 90 and CA 99 48 endorsements. Such policy must provide the following minimum limit: $1,000,000 Combined single limit each accident 1-07.18(5)C Workers' Compensation The Contractor shall comply with Workers' Compensation coverage as required by the Industrial Insurance laws of the State of Washington. Note to Designer: Work with City project manager to choose appropriate insurance provisions based on project specific needs. 1-07.18(5)D Excess or Umbrella Liability (January 4, 2016 APWA GSP) New The Contractor shall provide Excess or Umbrella Liability insurance with limits of not less than $$1$$ million each occurrence and annual aggregate. This excess or umbrella liability coverage shall be excess over and as least as broad in coverage as the Contractor's Commercial General and Auto Liability insurance All entities listed under 1-07.18(2) of these Special Provisions shall be named as additional insureds on the Contractor's Excess or Umbrella Liability insurance policy. This requirement may be satisfied instead through the Contractor's primary Commercial General and Automobile Liability coverages, or any combination thereof that achieves the overall required limits of insurance. 1-07.18(5)E LMWCA Insurance (January 4, 2016 APWA GSP) New SP- 37 If this Contract involves work on or adjacent to Navigable Waters of the United States, the Contractor shall procure and maintain insurance coverage in compliance with the statutory requirements of the U.S. Longshore and Harbor Workers' Compensation Act (LHWCA). Such policy must provide the following minimum limits: $1,000,000 Bodily Injury by Accident — each accident $1,000,000 Bodily Injury by Disease — each employee $1,000,000 Bodily Injury by Disease — policy limits 1-07.18(5)F Protection & Indemnity Insurance Including Jones Act (January 4, 2016 APWA GSP) New If this Contract involves marine activities, or work from a boat, vessel, or floating platform, the Contractor shall procure and maintain Protection and Indemnity (P&I) coverage including collision liability, injury to crew (Merchant Marine Act of 1920 - Jones Act) and passengers, removal of wreck and liability for seepage, pollution, containment and cleanup using form SP-23 or SP 38 or a form as least as broad. All entities listed under 1-07.18(2) of these Special Provisions shall be named as additional insureds on the Contractor's Protection and Indemnity insurance policy. Such policy must provide the following minimum limits: $1,000,000 Bodily Injury by Accident — each accident or occurrence $1,000,000 Bodily Injury by Disease — each employee $1,000,000 Bodily Injury by Disease — policy limits 1-07.18(5)G Hull and Machinery (January 4, 2016 APWA GSP) New If this Contract involves use of a boat, vessel, or floating platform, the Contractor shall procure and maintain coverage at Market Value of vessel on American Institute Hull Clauses, 6/2/77 form. 1-07.18(5)H Marine Pollution (January 4, 2016 APWA GSP) New The Contractor shall procure and maintain Pollution Liability (OPA, CERCLA) insurance to satisfy U.S. Coast Guard requirements as respects the Federal Oil Pollution Act of 1990 and the Comprehensive Environmental Response, Compensation and Liability Act of 1980 as amended. Such policy must provide the following minimum limits, or statutory Iz:mits of liability as applicable, whichever is higher: $1,000,000 per Occurrence 1-07.18(5)I Builder's Risk (January 4, 2016 APWA GSP) New Contractor shall purchase and maintain Builder's Risk insurance covering interests of the Contracting Agency, the Contractor, and Subcontractors of every tie-, as Named Insureds, in the SP- 38 Work. An Installation Floater instead of Builders Risk is acceptable for renovation projects. Builder's Risk insurance shall be on a special form policy, and shall insure against the perils of fire and extended coverage and physical loss or damage, theft, vandalism, malicious mischief and collapse; and flood and earthquake when shown below. The Builder's Risk insurance shall include coverage for temporary buildings, debris removal, and damage to materials in transit or stored off - site. Such insurance shall cover resulting "soft costs" including but not limited to design costs, licensing fees, architect's and engineer's fees, and costs due to delay in completion. Builder's Risk insurance shall be written in the amount of the completed value of the project, with no coinsurance provisions. Such policy must provide coverage and deductibles that comply with the following: Coverage: Total Cost of Project to be Insured: $$1$$ Soft Costs: $$2$$ Flood: $$3$$ Earthquake $$4$$ Deductibles not to exceed: Flood: 2% of the Value at Time of Loss, subject to a $250,000 Minimum Earthquake: 5% of the Value at Time of Loss, subject to a $250,000 Minimum Earth Movement: 5% of the Value at Time of Loss, subject to a $250,000 Minimum All Other Perils: $50,000 Soft Costs: $50,000, with no more than 7-day waiting period The Builders Risk insurance covering the work shall have maximum deductibles as listed above for each occurrence. The deductible(s) shall be the responsibility of the Contractor. The Contractor shall provide the Contracting Agency with a full and certified copy of the insurance policy when the Contractor delivers the signed Contract for the work. Failure of Contracting Agency to demand such verification of coverage with these insurance requirements or failure of Contracting Agency to identify a deficiency from the insurance documentation provided shall not be construed as a waiver of Contractor's obligation to maintain such insurance. The Builders Risk insurance shall be maintained until final acceptance of the Work by the Contracting Agency. The Contractor and the Contracting Agency waive all rights against each other and any of their Subcontractors of every tier, agents, and employees, officers, and officials, for damages caused by fire or other perils to the extent covered by Builder's Risk insurance or other property insurance applicable to the work. The policies shall provide such waivers by endorsement. 1-07.18(5)J Pollution Liability (January 4, 2016 APWA GSP) New The Contractor shall provide a Contractors Pollution Liability policy, providing coverage for claims involving bodily injury, property damage (including loss of use of tangible property that has not been physically injured), cleanup costs, remediation, disposal or other handling of pollutants, including costs and expenses incurred in the investigation, defense, or settlement of claims, arising out of any one or more of the following: 1. Contractor's operations related to this project. 2. Remediation, abatement, repair, maintenance or other work with lead -based paint or materials containing asbestos. 3. Transportation of hazardous materials away from any site related to this project. i',I/. ."nd n_ SP- 39 All entities listed under 1-07.18(2) of these Special Provisions shall be named by endorsement as additional insureds on the Contractors Pollution Liability insurance policy. Such Pollution Liability policy shall provide the following minimum limits: $$1$$ each loss and annual aggregate 1-07.18(5)K Professional Liability (January 4, 2016 APWA GSP) New The Contractor and/or its Subcontractor(s) and/or its design consultant providing construction management, value engineering, or any other design -related non -construction professional services shall provide evidence of Professional Liability insurance covering professional errors and omissions. Such policy shall provide the following minimum limits: $1,000,000 per claim and annual aggregate If the scope of such design -related professional services includes work related to pollution conditions, the Professional Liability insurance shall include coverage for Environmental Professional Liability. If insurance is on a claims made form, its retroactive date, and that of all subsequent renewals, shall be no later than the effective date of this Contract. Section 1-07.23(1) is supplemented with the following: Lane closures are subject to the following restrictions: The Contractor shall prepare and submit a project specific Traffic Control Plan (TCP) to the Engineer for approval. The Contractor shall not perform work affecting traffic until TCP is approved. The TCP submittal shall include the necessary phasing and sequencing to clarify the proposed order of work. The following minimum Traffic Control requirements shall be maintained during the construction of the project: If the Engineer determines the permitted closure hours, constraints and restrictions adversely affect traffic, the Engineer may adjust accordingly. The Engineer will notify the Contractor in writing of any change in the closure hours, constraints and restrictions. Lane closures are not allowed on any of the following: 1. A holiday, 2. A holiday weekend; holidays that occur on Friday, Saturday, Sunday or Monday are considered a holiday weekend. A holiday weekend includes Saturday, Sunday, and the holiday. 3. After 1 pm on the day prior to a holiday or holiday weekend. The Contractor shall adhere to the following constraints and restrictions: 1. Unless otherwise approved by the Engineer or specified herein, work within the traveled way will be limited to the hours between 7am and 6pm. SP- 40 2. The Contractor will be allowed to close 42nd Ave S for eleven (11) weeks for the installation of the Gilliam Creek Pipe Arch. This road closure restriction shall be incorporated into the Contractor's critical path schedule 1-08.3(2)B. 3. Local access will be maintained at all times. 4. The traveling public shall have full and unrestricted use, two lanes in each direction, during the Suspension Period, November 16, 2016 to March 14th, 2017. The suspension period shall be incorporated into the Contractor's critical path schedule 1-08.3(2)B. 5. The Contractor's TCS will coordinate Contractor TCP with utility work as described under 1- 05.14 Other Contracts Or Other Work and 1-07.17 Utilities and Similar Facilities. Work described in 1-05.14 shall be incorporated into the Contractor's critical path schedule 1- 08.3(2)B. 1-07.24 Rights of Way (July 23, 2015 APWA GSP) Replacement Delete this section and replace it with the following: Street Right of Way lines, limits of easements, and limits of construction permits are indicated in the Plans. The Contractor's construction activities shall be confined within these limits, unless arrangements for use of private property are made. Generally, the Contracting Agency will have obtained, prior to bid opening, all rights of way and easements, both permanent and temporary, necessary for carrying out the work. Exceptions to this are noted in the Bid Documents or will be brought to the Contractor's attention by a duly issued Addendum. Whenever any of the work is accomplished on or through property other than public Right of Way, the Contractor shall meet and fulfill all covenants and stipulations of any easement agreement obtained by the Contracting Agency from the owner of the private property. Copies of the easement agreements may be included in the Contract Provisions or made available to the Contractor as soon as practical after they have been obtained by the Engineer. Whenever easements or rights of entry have not been acquired prior to advertising, these areas are so noted in the Plans. The Contractor shall not proceed with any portion of the work in areas where right of way, easements or rights of entry have not been acquired until the Engineer certifies to the Contractor that the right of way or easement is available or that the right of entry has been received. If the Contractor is delayed due to acts of omission on the part of the Contracting Agency in obtaining easements, rights of entry or right of way, the Contractor will be entitled to an extension of time. The Contractor agrees that such delay shall not be a breach of contract. Each property owner shall be given 48 hours notice prior to entry by the Contractor. This includes entry onto easements and private property where private improvements must be adjusted. The Contractor shall be responsible for providing, without expense or liability to the Contracting Agency, any additional land and access thereto that the Contractor may desire for temporary construction facilities, storage of materials, or other Contractor needs. However, before using any private property, whether adjoining the work or not, the Contractor shall file with the Engineer a written permission of the private property owner, and, upon vacating the premises, a written release from the property owner of each property disturbed or otherwise interfered with by reasons of construction pursued under this contract. The statement shall be signed by the private property owner, or proper authority acting for the owner of the private property affected, stating that SP- 41 permission has been granted to use the property and all necessary permits have been obtained or, in the case of a release, that the restoration of the property has been satisfactorily accomplished. The statement shall include the parcel number, address, and date of signature. Written releases must be filed with the Engineer before the Completion Date will be established. 1-08 PROSECUTION AND PROGRESS Add the following new section: 1-08.0 Preliminary Matters (May 25, 2006 APWA GSP) Add the following new section: New 1-08.0(1) Preconstruction Conference (October 10, 2008 APWA GSP) New Prior to the Contractor beginning the work, a preconstruction conference wiill be held between the Contractor, the Engineer and such other interested parties as may be invited. The purpose of the preconstruction conference will be: 1. To review the initial progress schedule; 2. To establish a working understanding among the various parties associated or affected by the work; 3. To establish and review procedures for progress payment, notifications, approvals, submittals, etc.; 4. To establish normal working hours for the work; 5. To review safety standards and traffic control; and 6. To discuss such other related items as may be pertinent to the work. The Contractor shall prepare and submit at the preconstruction conference the following: 1. A breakdown of all lump sum items; 2. A preliminary schedule of working drawing submittals; and 3. A list of material sources for approval if applicable. Add the following new section: 1-08.0(2) Hours of Work (December 8, 2014 APWA GSP) New Except in the case of emergency or unless otherwise approved by the Engineer, the normal working hours for the Contract shall be any consecutive 8-hour period between 7:00 a.m. and 6:00 p.m. Monday through Friday, exclusive of a lunch break. If the Contractor desires different than the normal working hours stated above, the request must be submitted in writing prior to the preconstruction conference, subject to the provisions below. The working hours for the Contract shall be established at or prior to the preconstruction conference. All working hours and days are also subject to local permit and ordinance conditions (such as noise ordinances). SP- 42 If the Contractor wishes to deviate from the established working hours, the Contractor shall submit a written request to the Engineer for consideration. This request shall state what hours are being requested, and why. Requests shall be submitted for review no later than 10 days prior to the day(s) the Contractor is requesting to change the hours. If the Contracting Agency approves such a deviation, such approval may be subject to certain other conditions, which will be detailed in writing. For example: 1. On non -Federal aid projects, requiring the Contractor to reimburse the Contracting Agency for the costs in excess of straight -time costs for Contracting Agency representatives who worked during such times. (The Engineer may require designated representatives to be present during the work. Representatives who may be deemed necessary by the Engineer include, but are not limited to: survey crews; personnel from the Contracting Agency's material testing lab; inspectors; and other Contracting Agency employees or third party consultants when, in the opinion of the Engineer, such work necessitates their presence.) 2. Considering the work performed on Saturdays, Sundays, and holidays as working days with regard to the contract time. 3. Considering multiple work shifts as multiple working days with respect to contract time even though the multiple shifts occur in a single 24-hour period. 4. If a 4-10 work schedule is requested and approved the non working day for the week will be charged as a working day. 5. If Davis Bacon wage rates apply to this Contract, all requirements must be met and recorded properly on certified payroll 1-08.1 Subcontracting (July 23, 2015 APWA GSP) Replacement Delete the eighth paragraph and replace it with the following: On all projects funded with federal assistance the Contractor shall submit "Quarterly Report of Amounts Credited as DBE Participation" (form 422-102 EF) on a quarterly basis, in which DBE Work is accomplished, for every quarter in which the Contract is active or upon completion of the project, as appropriate. The quarterly reports are due on the 20th of April, July, October, and January for the four respective quarters. 1-08.3 Progress Schedule 1-08.3(2)B Type B Progress Schedule (March 13, 2012 APWA GSP) Modification Revise the first paragraph to read: The Contractor shall submit a preliminary Type B Progress Schedule at or prior to the preconstruction conference. The preliminary Type B Progress Schedule shall comply with all of these requirements and the requirements of Section 1-08.3(1), except that it may be limited to only those activities occurring within the first 60-working days of the project. Revise the first sentence of the second paragraph to read: SP- 43 The Contractor shall submit 5 copies of a Type B Progress Schedule depicting the entire project no later than 21-calendar days after the preconstruction conference.1-08.4 Prosecution of Work Delete this section and replace it with the following: 1-08.4 Notice to Proceed and Prosecution of Work (July 23, 2015 APWA GSP) Replacement Notice to Proceed will be given after the contract has been executed and the contract bond and evidence of insurance have been approved and filed by the Contracting Agency. The Contractor shall not commence with the work until the Notice to Proceed has been given by the Engineer. The Contractor shall commence construction activities on the project site within ten days of the Notice to Proceed Date, unless otherwise approved in writing. The Contractor shall diligently pursue the work to the physical completion date within the time specified in the contract. Voluntary shutdown or slowing of operations by the Contractor shall not relieve the Contractor of the responsibility to complete the work within the time(s) specified in the contract. When shown in the Plans, the first order of work shall be the installation of high visibility fencing to delineate all areas for protection or restoration, as described in the Contract. Installation of high visibility fencing adjacent to the roadway shall occur after the placement of all necessary signs and traffic control devices in accordance with 1-10.1(2). Upon construction of the fencing, the Contractor shall request the Engineer to inspect the fence. No other work shall be performed on the site until the Contracting Agency has accepted the installation of high visibility fencing, as described in the Contract. 1-08.5 Time for Completion (August 14, 2013 APWA GSP, Option A) Modification Revise the third and fourth paragraphs to read: Contract time shall begin on the first working day following the Notice to Proceed Date. Each working day shall be charged to the contract as it occurs, until the contract work is physically complete. If substantial completion has been granted and all the authorized working days have been used, charging of working days will cease. Each week the Engineer will provide the Contractor a statement that shows the number of working days: (1) charged to the contract the week before; (2) specified for the physical completion of the contract; and (3) remaining for the physical completion of the contract. The statement will also show the nonworking days and any partial or whole day the Engineer declares as unworkable. Within 10 calendar days after the date of each statement, the Contractor shall file a written protest of any alleged discrepancies in it. To be considered by the Engineer, the protest shall be in sufficient detail to enable the Engineer to ascertain the basis and amount of time disputed. By not filing such detailed protest in that period, the Contractor shall be deemed as having accepted the statement as correct. If the Contractor is approved to work 10 hours a day and 4 days a week (a 4-10 schedule) and the fifth day of the week in which a 4-10 shift is worked would ordinarily be charged as a working day then the fifth day of that week will be charged as a working day whether or not the Contractor works on that day. Revise the sixth paragraph to read: The Engineer will give the Contractor written notice of the completion date of the contract after all the Contractor's obligations under the contract have been performed by the Contractor. The following events must occur before the Completion Date can be established: 1. The physical work on the project must be complete; and SP- 44 2. The Contractor must furnish all documentation required by the contract and required by law, to allow the Contracting Agency to process final acceptance of the contract. The following documents must be received by the Project Engineer prior to establishing a completion date: a. Certified Payrolls (per Section 1-07.9(5)). b. Material Acceptance Certification Documents c. Quarterly Reports of Amounts Credited as DBE Provisions. d. Final Contract Voucher Certification e. Copies of the approved "Affidavit of Prevailing Subcontractors f. Property owner releases per Section 1-07.24 1-08.6 Suspension of Work (March 31 2006 Tukviila GSP) Supplement this section with the following Participation, as required by the Contract Wages Paid" for the Contractor and all Supplement Contractor shall not suspend work under the Contract without the order of the Contracting Agency. Contracting Agency may at any time suspend the work or any part thereof, by giving notice to Contractor in writing. Ir urgent situations. the Contractor shall suspend work upon Contracting Agency's verbal notice, which will be followed up with a written notice. When ordered by the Engineer to suspend or resume work, the Contractor shall do so immediately The project will be suspended from November 16th, 2017 to March 14th, 2018. During the suspension period it is anticipated that utilities will be working on cut-overs from aerial to underground as described in 1-05.14. No working days will be charged during the suspension period. If the suspension of work is due to conditions beyond the control of the Contractor, and is solely for the convenience of the Contracting Agency. then the "Working Day" count shall also be suspended during the period of suspension The Working Day count wilt immediately resume once the Contractor is ordered to resume work. Upon resumption of work, the Contractor shall revise the Project Schedule to show the period of suspension 1-08.8 Extensions of Time (July 5. 2006 Tukwila GSP) Modification Add the following to the bulleted list after the sixth paragraph: 6 Engineer's delay in or failure to furnish Contractor -requested or other supplemental drawings, unless Contractor snail have g'ven at 'east 2 calendar weeks' notice of the need for such drawings and not then unless claim of need for such drawings is reasonable Add the foilowng to the end of this Section: If it has been determined that the Contractor is entitled to an extension of time. the amount of such extension shall be only to compensate for direct de'ays and shall be Lased upon Contractor energetcauy pursuing the work at a rate not less than that which would have been necessary to complete the original Contract Work or time 1-08.9 Liquidated Damages (August 14, 2013 APWA GSP) Modification SP- 45 Revise the fourth paragraph to read: When the Contract Work has progressed to Substantial Completion as defined in the Contract, the Engineer may determine that the work is Substantially Complete. The Engineer will notify the Contractor in writing of the Substantial Completion Date. For overruns in Contract time occurring after the date so established, the formula for liquidated damages shown above will not apply. For overruns in Contract time occurring after the Substantial Completion Date, liquidated damages shall be assessed on the basis of direct engineering and related costs assignable to the project until the actual Physical Completion Date of all the Contract Work. The Contractor shall complete the remaining Work as promptly as possible. Upon request by the Project Engineer, the Contractor shall furnish a written schedule for completing the physical Work on the Contract. 1-09 MEASUREMENT AND PAYMENT 1-09.2(1) General Requirements for Weighing Equipment (July 23, 2015 APWA GSP, Option 2) Modification Revise item 4 of the fifth paragraph to read: 4. Test results and scale weight records for each day's hauling operations are provided to the Engineer daily. Reporting shall utilize WSDOT form 422-027, Scaleman's Daily Report, unless the printed ticket contains the same information that is on the Scaleman's Daily Report Form. The scale operator must provide AM and/or PM tare weights for each truck on the printed ticket. 1-09.6 Force Account (October 10, 2008 APWA GSP) Supplement Supplement this section with the following: Contracting Agency has estimated and included in the Proposal dollar amounts for all items to be paid per force account only to provide a common proposal for Bidders. All such dollar amounts are to become a part of Contractor's total bid. However, the Contracting Agency does not warrant expressly or by implication that the actual amount of work will correspond with those estimates. Payment will be made on the basis of the amount of work actually authorized by Engineer. 1-09.7 Mobilization Section 1-09.7 is supplemented with the following: (March 13, 1995) FIELD OFFICE BUILDING Description This work shall consist of furnishing and setting -up a temporary office building for the sole use of the Contracting Agency. Construction Requirements The building shall be set-up, at the location designated by the Engineer, within the first 10 working days, unless the Engineer has approved a different schedule. The building shall be weather -tight, installed plumb and level, and provided with the following as a minimum: SP- 46 1. 400 square feet of floor space 2. Above ground floor 3. Heat 4. Electric lights 5. Telephone 6. Adequate windows 7. Six square feet of shelving 8. Plan table: 3 feet 6 inches deep by 6 feet wide by 3 feet 3 inches high 9. Drafting stool 10. Conference table: 4 foot by 8 foot 11. Four chairs, three office -type desks 12. Cylinder door lock and six keys 13. Sanitary facilities 14. Water for drinking 15. Two, four drawer metal filing cabinets 16. Two, three shelf bookcases 17. Hi -speed internet connection, rated at 15 megabits per second or higher 18. Weekly waste removal 19. Weekly vacuuming 20. Copy machine with the following capabilities • Color print/Scan/Copy • Document feeder/stapler • 30+ ppm • 8-1/2 x 11 and 11 x 17 paper sizes • Services to include maintenance, initial set up and links to agency provided computers, toner, paper, labor and parts The building shall remain the property of the Contractor and removed from the site upon physical completion of the contract, or when designated by the Engineer. 1-09.8 Payment for illiaterial on Hand (March 31. 2006 Tukwila GSP) Supplement Supplement thes secton with the following: Payment for material on hand wi l only be made for materials properly stored: protected and insured 1-09.9 Payments (March 13, 2012 APWA GSP) Supplement Supplement this section with the following: Lump sum item breakdowns are not required when the bid price for the lump sum item is Tess than $20,000. 1-09.9 Payments (March 13, 2012 APWA GSP) Modification Delete the first four paragraphs and replace them with the following: The basis of payment will be the actual quantities of Work performed according to the Contract and as specified for payment. SP- 47 The Contractor shall submit a breakdown of the cost of lump sum bid items at the Preconstruction Conference to enable the Project Engineer to determine the Work performed on a monthly basis. A breakdown is not required for lump sum items that include a basis for incremental payments as part of the respective Specification. Absent a lump sum breakdown, the Project Engineer will make a determination based on information available. The Project Engineer's determination of the cost of work shall be final. Progress payments for completed work and material on hand will be based upon progress estimates prepared by the Engineer. A progress estimate cutoff date will be established at the Preconstruction Conference. The initial progress estimate will be made not later than 30 days after the Contractor commences the work, and successive progress estimates will be made every month thereafter until the Completion Date. Progress estimates made during progress of the work are tentative, and made only for the purpose of determining progress payments. The progress estimates are subject to change at any time prior to the calculation of the final payment. The value of the progress estimate will be the sum of the following: 1. Unit Price Items in the Bid Form — the approximate quantity of acceptable units of work completed multiplied by the unit price. 2. Lump Sum Items in the Bid Form — based on the approved Contractor's lump sum breakdown for that item, or absent such a breakdown, based on the Engineer's determination. 3. Materials on Hand — 100 percent of invoiced cost of material delivered to job site or other storage area approved by the Engineer. 4. Change Orders — entitlement for approved extra cost or completed extra work as determined by the Engineer. Progress payments will be made in accordance with the progress estimate less: 1. Retainage per Section 1-09.9(1), on non FHWA-funded projects; 2. The amount of progress payments previously made; and 3. Funds withheld by the Contracting Agency for disbursement in accordance with the Contract Documents. Progress payments for work performed shall not be evidence of acceptable performance or an admission by the Contracting Agency that any work has been satisfactorily completed. The determination of payments under the contract will be final in accordance with Section 1-05.1. 1-09.9 Payments (March 31, 2006 Tukwila GSP) Supplement Supplement this secton with the following Within 7 calendar days of the progress estimate cutoff date, Contractor shaI submit to Engineer 3 copies of an itemized request for payment The itemized pay request shall be in an electronic spreadsheet format witl separate columns for current request, total prior request, and a total to date column. The itemized pay request shall be SP- 48 grouped in rows according to the bid schedule wit'i subtotals and subtotals minus retainage for the groupings displayed in the bid schedule (i.e Roadway, Storm Drainage Traffic Control Devices etc) Pay requests not in this format will not be accepted. Pay request shall be supported to the extent required by Engineer by receipts or other vouchers showing payment for materials and labor payments to subcontractors. and other such evidence of Contractors nght to payment as Engineer may direct Progress estimates will be prepared by Engineer not later than 30 calendar days after commencing work, and every 30 calendar days thereafter, if sc entitled, for the duration of construction. These shall be based upon an approximate estimate of quantities of work completed and considered acceptable, as extended by the unit prices established ,n the Contract or as provided by the schedule of iump sum payments. Quantities used for progress estimates shall be considered only as approximate and provisional and shah be subject to recalculations, adjustment. and correction by Engineer in subsequent progress estimates and in final estimates. Once the Contractor signs the Final. Pay Estimate this will be considered equivaiert to the `Final Contract Voucher Certification" and serve as an acknowledgement that no further monies are due and owing to the Contractor and a'so as a release of all claims against the City. However. the actual formal contract closeout and acceptance wilt not occur until the Final Pay Estimate has been issued and all contractual obligations and documentation are received and verified as adequate. 1-09.13(3) Claims $250,000 or Less (October 1, 2005 APWA GSP) Replacement Delete this section and replace it with the following: The Contractor and the Contracting Agency mutually agree that those claims that total $250,000 or less, submitted in accordance with Section 1-09.11 and not resolved by nonbinding ADR processes, shall be resolved through litigation unless the parties mutually agree in writing to resolve the claim through binding arbitration. 1-09.13(3)A Administration of Arbitration (July 23, 2015 APWA GSP) Modification Revise the third paragraph to read: The Contracting Agency and the Contractor mutually agree to be bound by the decision of the arbitrator, and judgment upon the award rendered by the arbitrator may be entered in the Superior Court of the county in which the Contracting Agency's headquarters is located, provided that where claims subject to arbitration are asserted against a county, RCW 36.01.05 shall control venue and jurisdiction of the Superior Court. The decision of the arbitrator and the specific basis for the decision shall be in writing. The arbitrator shall use the Contract as a basis for decisions. 1-10.5(2) Item Bids with Lump Sum for Incidentalls (January 23, 2006 APWA GSP) Modification Revise the names of the first, third and fourth pay items to read: "Traffic Control Supervisor, min. Bid $50 per hour" "Flaggers and Spotters, min. Bid $50 per hour". A A}h SP- 49 "Other Traffic Control Labor, min. Bid $50 per hour" SPECIAL PROVISIONS SP- i SPECIAL PROVISIONS — CONTENTS DIVISION 2 - EARTHWORK 2-02 REMOVAL OF STRUCTURES AND OBSTRUCTIONS 2-02.1 Description 2-02.3 Construction Requirements Removing Miscellaneous Traffic Items 2-02.3(3) Removal of Pavement, Sidewalks, Curbs, and Gutters 1 2-02.3(4) Pavement Sawcutting 2 2 02.3(5) Removal and Relocation of Existing Private Improvements 2 2-02.3(6) Removal of Drainage Structures 2 2-03.3(14)N POND EXCAVATION INCLUDING HAUL Error! Bookmark not defined. 2-03.4 MEASUREMENT 3 DIVISION 3 - AGGREGATE PRODUCTION AND ACCEPTANCE 4 3-01 PRODUCTION FROM QUARRY AND PIT SITES 4 3-01.2 Material Sources, General Requirements 4 Permits for Pit Operations In King County 4 DIVISION 5 - SURFACE TREATMENTS AND PAVEMENTS 7 5-04 HOT MIX ASPHALT 7 5-04.3(7)A2 Statistical or Nonstatistical Evaluation 7 5-04.3(7)A2 Nonstatistical Evaluation 7 5-04.3(8)A1 General 7 5-04.3(8)A4 Definition of Sampling Lot and Sublot 8 5-04.3(8)A6 Test Methods 8 5-04.5(1)B Price Adjustments for Quality of HMA Compaction 8 DIVISION 6 - STRUCTURES ERROR! BOOKMARK NOT DEFINED. 6-10 CONCRETE BARRIER ERROR! BOOKMARK NOT DEFINED. 6-10.3(6) Construction Requirements Error! Bookmark not defined. Placing Concrete Barrier Error! Bookmark not defined. 6-10.5 Payment Error! Bookmark not defined. 6-13.2 Structural Earth Walls Error! Bookmark not defined. Materials Error! Bookmark not defined. Error! Bookmark not defined. Error! Bookmark not defined. Error! Bookmark not defined. Geosynthetic Soil Reinforcement Error! Bookmark not defined. Drainage Geosynthetic Fabric Error! Bookmark not defined. Error! Bookmark not defined. General Materials Concrete Block Mortar Proprietary Materials Allan Block Wall Landmark Retaining Wall Mesa Wall 6-13.3 Construction Requirements Concrete Block Faced Structural Earth Wall Error! Bookmark not defined. Error! Bookmark not defined. Error! Bookmark not defined. Error! Bookmark not defined. Error! Bookmark not defined. 6-13.3(2) Submittals Error! Bookmark not defined. 6-13.3(5) Precast Concrete Facing Panel and Concrete Block ErectionError! Bookmark not defined. Specific Erection Requirements for Precast Concrete Block Faced Structural Earth Walls Error! Bookmark not defined. CIITY OF TUKWILA, WA SP- ii Landmark Retaining Wall Error! Bookmark not defined. Mesa Wall Error! Bookmark not defined. DIVISION 7 - DRAINAGE STRUCTURES, STORM SEWERS, SANITARY 9 SEWERS, WATER MAINS, AND CONDUITS 9 7-04 STORM SEWERS 9 7-04.2 Materials 9 Ductile Iron Storm Sewer Pipe 9-05.13 9 7-04.3 Construction Requirements 9 7-06 TEMPORARY STREAM DIVERSION 9 7-06.1 Description 9 7-06.2 Materials 9 7-06.3 Construction Requirements 9 7-06.3(1) General 9 7-06.3(2) Temporary Stream Diversion Plan 10 7-06.3(2)A General Plan Requirements 10 7-06.3(2)B Minimum Stream Volumes 10 7-06.3(2)C Design Requirements. 10 7-06.3(2)D Plan Requirements 11 7-06.3(3) Fish and Aquatic Species Exclusion and Notifications 13 7-06.3(4) Inspection and Maintenance 13 7-06.3(5) Dewatering Work Area 13 7-06.3(6) Rewatering the Stream Channel 14 7-06.3(7) Removal of the Temporary Stream Diversion 14 7-21 STORMWATER TREATMENT UNITS AND DETENTION VAULT 14 7-21.1 Description 14 7-21.1(2) General 14 7-21.1(3) Manufacturers' Services 14 7-21.1(4) Submittals 15 7-21.2 Materials 15 7-21.2(1) Stormwater Treatment Systems 15 7-21.2(2) Stormwater treatment system Bedding and Backfill 16 7-21.2(3) Conformance with Standards 17 7-21.2(4) Stormwater Vault 17 7-21.2(4)A General 17 7-21.2(4)B Design and Material Requirements: 17 7-21.2(4)C Accessories 18 7-21.2(4) Warranties 18 7-21.3 Construction Requirements 18 7-21.3(1) General 18 7-21.3(2) Precast Concrete Vault 19 7-21.3(4) Installation Warranty 19 7-21.3(5) Operational Testing 19 DIVISION 8 - MISCELLANEOUS CONSTRUCTION 20 8-01 EROSION CONTROL AND WATER POLLUTION CONTROL 20 8-01.3(1) Construction Requirements 20 General 20 TESC Compliance Incentive 20 CITY OF TUKWILA, WA SP- Hi 8-01.3(A) Submittals 21 Erosion and Sediment Control (ESC) Lead 21 8-01.3(1)C Water Management 22 8-01.3(1) General Error! Bookmark not defined. Offsite Stormwater 22 8-01.3(1)A Submittals Error! Bookmark not defined. 8-01.3(1)B Erosion and Sediment Control (ESC) Lead Error! Bookmark not defined. 8-01.3(1)F SWPPP PREPARATION AND GENERAL PERMIT COMPLIANCE 23 8-01.3(1)G Stormwater Monitoring Requirements 24 Turbidity and pH Exceedances 24 8-01.3(2)B Seeding, Fertilizing and Mulching 25 Seeding and Fertilizing Error! Bookmark not defined. 8-01.3(15) Maintenance 25 8-01.3(16) Removal 25 8-01.4 Measurement Error! Bookmark not defined. 8-01.5 Payment Error! Bookmark not defined. 9-14 ROADSIDE RESTORATION 26 Materials 26 9-14.1(1) SOIL ERROR! BOOKMARK NOT DEFINED. Topsoil Type A Error! Bookmark not defined. 8-02.3(4) Construction Requirements 26 8-02.3(4)A Topsoil 26 Topsoil Type A 26 8-02.3(8) Planting 26 8-02.3(11) Bark or Wood Chip Mulch 27 Measurement Error! Bookmark not defined. Payment Error! Bookmark not defined. 8-04.3(4) Integral Curb 28 8-12 CHAIN LINK FENCE AND WIRE FENCE 28 8-12.2 Materials 28 Coated Chain Link Fence 28 8-14 CEMENT CONCRETE SIDEWALKS 28 8-14.3 Construction Requirements 28 8-14.3(6) Special Color and Scoring 29 8-22 PAVEMENT MARKING 29 9-06.16 Permanent Signing 29 Roadside Sign Structures 29 Perforated Steel Square Sign Post System 30 System Acceptance 30 8-24 ROCK AD GRAVITY BLOCK WALL AND GABION CRIBBING 30 8-24.1 Description 30 8-24.2 Materials 30 8-24.3(1) Rock Wall 31 8-24.3(1)F Base Leveling Pad 31 8-24.3(4) Modular Block Wall 32 8-24.3(4)A Excavation 32 8-24.3(4)B Base Leveling Pad 32 8-24.3(4)C Modular Unit Installation 32 8-24.3(4)D Cap Installation 32 CITY OF TUKWILA, WA SP- iv 8-24.3(4)E As -built Construction Tolerances 32 8-26 VALVE BOXES 33 8-26.1 Description 33 8-32 JOINT UTILITY TRENCH FOR COMMUNICATIONS NEW SECTION 33 8-32.1 Description 33 8-32.1(1) Work by Contractor 33 8-32.1(2) Work by CENTURY LINK, COMCAST and ZAYO 33 8-32.2 Materials 34 8-32.3 Construction Requirements 34 8-32.3(1) Excavating and Backfilling 34 8-32.3(3) Conduit 35 8-32.3(4) Vaults, Handholes, Pedestals and Appurtenances 35 8-32.3(5) Core Drill of Existing Vault 36 8-33 SEATTLE CITY LIGHT ELECTRICAL DUCT BANK NEW SECTION 36 8-33.1 Description 36 8-33.1(1) Work by Contractor 37 8-33.1(2) Work by Seattle City Light 38 8-33.2 Material 38 8-33.3 Construction Requirements 39 8-33.3(1) Excavating and Backfilling 39 8-33.3(2) Conduit Risers 39 8-33.3(3) Core Drill of Existing Vault 39 8-33.3(4) Electrode for Vault and Handhole Grounding 39 8-34 PRIVATE SERVICE JOINT UTILITY TRENCH NEW SECTION 40 8-34.1 Description 40 8-34.1(1) Work by Contractor 40 8-34.1(2) Work by CENTURYLINK, COMCAST and Seattle City Light 40 8-34.2 Materials 41 8-34.3 Construction Requirements 41 8-34.3(1) Private Service Joint Utility Trench (JUT) Placement and Property Restoration 41 8-35 FRANCHISE UTILITY COORDINATION 41 8-37 SETTLEMENT MONITORING OF EXISTING ROCKERY WALL 42 8-37.1 Description 42 8-37.3 Construction Requirements 42 Settlement Monitoring 42 8-37.3(1) Submittals 43 DIVISION 9 - MATERIALS 45 9-29 ILLUMINATION, SIGNAL, AND ELECTRICAL 45 9-29.10(3) LED Roadway Luminaires 47 CITY OF TUKWILA, WA SP- 1 DIVISION 2 - EARTHWORK 2-01 CLEARING, GRUBBING, AND ROADSIDE CLEANUP 2-01.1 Description Section 2-01.1 is supplemented with the following: "Arborist" means ISA board certified arborist and City of Tukwila recognized arborists with experience assessing the health and sustainability of trees within and adjacent to the construction area. 2-01.3 Construction Requirements Section 2-01.3 is supplemented with the following: Contractor shall employ the services of an arborist to review clearing limits in relation to trees to remain and trees to be removed. Arborist to make clearing recommendations concerning tree sustainability after construction and provide a written document with photos to illustrate recommendations for trees that should be protected or removed that are shown to remain. No trees to remain shall be removed prior to consultation with the City of Tukwila. 2-02 REMOVAL OF STRUCTURES AND OBSTRUCTIONS 2-02.1 Description Section 2-02.1 is supplemented with the following: (March 13, 1995) This work shall consist of removing miscellaneous traffic items. 2-02.3 Construction Requirements Section 2-02.3 is supplemented with the following: (February 17, 1998) Removal of Obstructions *** $$1$$ *** (March 13, 1995) Removing Miscellaneous Traffic Items The following miscellaneous traffic items shall be removed and disposed of: Existing Street signs as shown in the plans (Sign Schedule). 2-02.3(3) Removal of Pavement, Sidewalks, Curbs, and Gutters Section 2-02.3(3) is supplemented with the following: CITY OF TUKWILA, WA SP- 2 (September 8, 1997) The approximate thickness of the HMA pavement is 8 inches. 2-02.3(4) Pavement Sawcutting Section 2-02.3(4) is a new section: Prior to removal, the Contractor shall make a full -depth sawcut to delineate the areas of pavement removal from those areas of pavement to remain. The Engineer shall approve the equipment and procedures used to make the full -depth sawcut. No wastewater from the sawcutting operation shall be released directly to any stream or storm sewer system. 2 02.3(5) Removal and Relocation of Existing Private Improvements ( ) Section 2-02.3(5) is a new section: When directed by the Engineer, the removal and relocation of certain specified existing private improvements are to be paid for on the basis of force account in accordance with Section 1 09.6 of the Standard Specifications. For the purpose of providing a common proposal, and for that purpose only, the Contracting Agency has estimated the cost of accomplishing this item of work and has arbitrarily entered that amount in the bid proposal to become part of the total bid by the Contractor. Typical items of work covered by this bid item include: 1. Private Landscaping 2. Private illumination and electrical systems 3. Roof drains and underdrains 4. Private Signs 5. Private Fence and Gate Removal of improvements which are incidental to the bid items for Clearing and Grubbing and Removal of Structures and Obstructions shall not be paid for separately under this bid item. 2-02.3(6) Removal of Drainage Structures ( ) Section 2-02.3(6) is a new section: Where shown in the Plans or where designated by the Engineer, the Contractor shall remove existing catch basins, manholes, pipes, and other drainage features in accordance with Section 2-02 of the Standard Specifications. Removal shall be conducted in such a manner as to prevent damage to surrounding facilities including any existing storm sewers, sanitary sewers, electrical conduits or other facilities to remain. All remaining facilities including but not limited to storm sewers, sanitary sewers, monuments, valves, vaults, and electrical conduits damaged due to the Contractor's operations shall be CITY OF TUKWILA, WA SP- 3 replaced by the Contractor to the satisfaction of the Engineer at no additional cost to the Contracting Agency. Catch basins, manholes, and other drainage structures designated for removal, including all debris, shall be completely removed. All removed catch basins, manholes, and other drainage structures shall become the property of the Contractor and shall be disposed of in accordance with Section 2-02 of the Standard Specifications. All undamaged frames, grates, and solid covers in a re -useable condition shall become the property of the City of Federal Way and shall be delivered to a location specified by the Engineer. Sawcutting (full depth) of existing asphalt concrete pavement and cement concrete curb and gutter surrounding the structure required for removal will be considered incidental to the removal of the catch basin, manhole, or other drainage structures. Sawcuts shall be in accordance with Section 2-02 of these Special Provisions. Backfilling of catch basins, manholes, pipes and other drainage structures to be removed and replaced shall not be performed until the new structure is installed and shall be in accordance with Section 7-05. Backfilling of a structure to be replaced shall be considered incidental to the construction and installation of the new catch basin, manhole, or other drainage structure. Backfilling of catch basins, manholes, pipes and other drainage structures to be completely removed shall be performed using gravel borrow paid in accordance with the Bid Schedule. Prior to backfilling any voids, the Contractor shall remove pipe as noted in the plans. Pipe shown to be abandoned or ordered by the Engineer to be abandoned shall be filled with CDF in accordance with Section 2-09.3(1)E of the Standard Specifications. Material, labor, tools, and equipment necessary to remove and/or fill any abandoned pipe shall be paid in accordance with the Bid Schedule. The Contractor shall maintain existing drainage, where designated by the Engineer, until the new drainage system is completely installed and functioning. (******) 2-03.4 MEASUREMENT Section 2-03.4 is supplemented with the following: (March 13, 1995) Only one determination of the original ground elevation will be made on this project. Measurement for roadway excavation and embankment will be based on the original ground elevations recorded previous to the award of this contract. If discrepancies are discovered in the ground elevations which will materially affect the quantities of earthwork, the original computations of earthwork quantities will be adjusted accordingly. Earthwork quantities will be computed, either manually or by means of electronic data processing equipment, by use of the average end area method or by the finite element analysis method utilizing digital terrain modeling techniques. Copies of the ground cross-section notes will be available for the bidder's inspection, before the opening of bids, at the Project Engineer's office and at the Region office. Upon award of the contract, copies of the original ground cross -sections will be furnished to the successful bidder on request to the Project Engineer. CITY OF TUKWILA, WA SP- 4 DIVISION 3 - AGGREGATE PRODUCTION AND ACCEPTANCE 3-01 PRODUCTION FROM QUARRY AND PIT SITIES 3-01.2 Material Sources, General Requirements Section 3-01.2 is supplemented with the following: (March 13, 1995) Permits for Pit Operations In King County The Contractor is advised that King County may require the Contractor to meet any or all of the following listed conditions before considering issuance of a temporary permit for pit operations within King County: Security fences and locking gates shall be installed where deemed necessary by the King County Department of Building. Cable or wire gates are not acceptable. Hours of operation shall be limited to: 7:00 a.m. to 7:00 p.m. Access roads shall be improved and maintained to the satisfaction of the King County Department of Public Works. A haul road agreement for County road maintenance may be required. All roads shall be swept, washed, or both, by the Contractor at the Contractor's expense as often as the Department of Building deems necessary. Property shall have functional access to an arterial level street. All operations will have to be approved by King County Flood Control for drainage plans, Washington State Department of Ecology, and Puget Sound Air Pollution Control Authority. Those properties near or adjacent to any water body shall have written approval from the State of Washington Department of Fisheries. The Contractor shall obtain a mining reclamation permit from the State of Washington Department of Natural Resources for sites of over three acres in size of disturbed land or resulting in pit walls more than thirty feet high and steeper than one to one slope. No stockpiling of foreign excavated material is permitted on the site except for those materials to be used in the land rehabilitation of the subject property. No signs other than signs required by Chapter 24.42, King County Zoning Code are authorized as a result of the temporary permit. Plans required: a. Scale of Plot Plans Site Size: less than 10 acres 1 inch = 50 feet 10 to 100 acres 1 inch = 100 feet b. Contours over 100 acres 1 inch = 200 feet CITY OF TUKWILA, WA SP- 5 Show existing and proposed contours at 5-foot intervals. If existing and proposed contours are superimposed upon one another it must be clear as to which is which. Plans which incorporate a screening process may be required by the County to distinguish said contours. Finished contours must show how the property can be used under the existing zoning. Plans showing daylighting of property to road grade or below with high 2:1 slope walls will no longer be permitted within the R, S, or G zones. The plans must contain large terraces which will permit the lot sizes and roads that are permitted within the zone. c. Sections Show a minimum of two sections in each direction. d. Maximum Slope Cuts shall not be steeper in slope than two horizontal to one vertical unless the owner furnishes a soils engineering or an engineering geology report certifying that the site has been investigated and indicating that the proposed deviation will not endanger any private property or result in the deposition of debris on any public way or interfere with any existing drainage course. e. Fill Slopes No fill shall be made which creates an exposed surface steeper in slope than two horizontal to one vertical. f. Benches on Slopes There shall be a 10 foot wide bench sloped into the hillside for every 50 feet in height. g. Setbacks Material and vegetation shall be left in its natural state: 50 feet from any FP, A, G, S, or R zoned property; 20 foot setback which includes a 6 foot high planted berm along any public right-of-way; 20 feet from M, B, or CG zoned property; 10 feet from QM or FR zoned property. Plans shall show type of vegetation existing within the buffer zones. h. Drainage All drainage facilities shall be designed to carry surface waters to the nearest practical street, storm drain, or natural water -course. Adequate provision shall be made to prevent any surface waters from damaging the face of an excavation or fill. All slopes shall be protected from surface water runoff from above by berms or swales. The Contractor is further advised that King County may require conditions which are in addition to the foregoing list and that the County may reject permit applications at its discretion because of the proposed operations proximity to schools, residential neighborhoods, hospitals, arterials, or for other environmental conditions. CIITY OF TUKWILA, WA SP- 6 When there are discrepancies between the requirements of the State and the County the more stringent specifications shall apply. Should the Contractor fail to comply with any requirements of a temporary permit obtained in the Contracting Agency's name, the Contracting Agency will take the necessary action to meet these requirements and any costs incurred by the Contracting Agency will be deducted from monies due or to become due the Contractor. CITY OF TUKWILA, WA SP- 7 DIVISION 5 - SURFACE TREATMENTS AND PAVEMENTS 5-04 HOT MIX ASPHALT 5-04.3(7)A2 Statistical or Nonstatistical Evaluation Delete this section and replace it with the following: 5-04.3(7)A2 Nonstatistical Evaluation (January 16, 2014 APWA GSP) Mix designs for HMA accepted by Nonstatistical evaluation shall; 1. Be submitted to the Project Engineer on WSDOT Form 350-042 Have the aggregate structure and asphalt binder content determined in accordance with WSDOT Standard Operating Procedure 732 and meet the requirements of Sections 9-03.8(2) and 9-03.8(6). Have anti -strip requirements, if any, for the proposed mix design determined in accordance with WSDOT Test Method T 718 or based on historic anti -strip and aggregate source compatibility from WSDOT lab testing. Anti -strip evaluation of HMA mix designs utilized that include RAP will be completed without the inclusion of the RAP. At or prior to the preconstruction meeting, the contractor shall provide one of the following mix design verification certifications for Contracting Agency review; 1. The proposed mix design indicated on a WSDOT mix design/anti-strip report that is within one year of the approval date 2. The proposed HMA mix design submittal (Form 350-042) with the seal and certification (stamp & signature) of a valid licensed Washington State Professional Engineer. 3. The proposed mix design by a qualified City or County laboratory mix design report that is within one year of the approval date. The mix design will be performed by a lab accredited by a national authority such as Laboratory Accreditation Bureau, L-A-B for Construction Materials Testing, The Construction Materials Engineering Council (CMEC's) ISO 17025 or AASHTO Accreditation Program (AAP) and shall supply evidence of participation in the AASHTO Material Reference Laboratory (AMRL) program. At the discretion of the Engineer, agencies may accept mix designs verified beyond the one year verification period with a certification from the Contractor that the materials and sources are the same as those shown on the original mix design. 5-04.3(8)A1 General (January 16, 2014 APWA GSP) Delete this section and replace it with the following: Acceptance of HMA shall be as defined under nonstatistical or commercial evaluation. Nonstatistical evaluation will be used for all HMA not designated as Commercial HMA in the contract documents. CIITY OF TUKWILA, WA SP- 8 The mix design will be the initial JMF for the class of HMA. The Contractor may request a change in the JMF. Any adjustments to the JMF will require the approval of the Project Engineer and must be made in accordance with Section 9-03.8(7). Commercial evaluation may be used for Commercial HMA and for other classes of HMA in the following applications: sidewalks, road approaches, ditches, slopes, paths, trails, gores, prelevel, and pavement repair. Other nonstructural applications of HMA accepted by commercial evaluation shall be as approved by the Project Engineer. Sampling and testing of HMA accepted by commercial evaluation will be at the option of the Project Engineer. Commercial HMA can be accepted by a contractor certificate of compliance letter stating the material meets the HMA requirements defined in the contract. 5-04.3(8)A4 Definition of Sampling Lot and Sublot (January 16, 2014 APWA GSP) Section 5-04.3(8)A4 is supplemented with the following: For HMA in a structural application, sampling and testing for total project quantities less than 400 tons is at the discretion of the engineer. For HMA used in a structural application and with a total project quantity less than 800 tons but more than 400 tons, a minimum of one acceptance test shall be performed: 1. If test results are found to be within specification requirements, additional testing will be at the engineer's discretion. If test results are found not to be within specification requirements, additional testing as needed to determine a CPF shall be performed. 5-04.3(8)A5 Test Results (January 16, 2014 APWA GSP) The first paragraph of this section is deleted. 5-04.3(8)A6 Test Methods (January 16, 2014 APWA GSP) Delete this section and replace it with the following: Testing of HMA for compliance of Va will be at the option of the Contracting Agency. If tested, compliance of Va will be use WSDOT Standard Operating Procedure SOP 731. Testing for compliance of asphalt binder content will be by WSDOT FOP for AASHTO T 308. Testing for compliance of gradation will be by WAQTC FOP for AASHTO T 27/T 11. 5-04.5(1)B Price Adjustments for Quality of HMA Compaction (January 16, 2014 APWA GSP) Delete this section and replace it with the following: The maximum CPF of a compaction lot is 1.00. For each compaction lot of HMA when the CPF is Tess than 1.00, a Nonconforming Compaction Factor (NCCF) will be determined. THE NCCF equals the algebraic difference of CPF minus 1.00 multiplied by 40 percent. The Compaction Price Adjustment will be calculated as the product of the NCCF, the quantity of HMA in the lot in tons and the unit contract price per ton of the mix. CITY OF TUKWILA, WA SP- 9 DIVISION 7 - DRAINAGE STRUCTURES, STORM SEWERS, SAN SEWERS, WATER MAINS, AND CONDUITS 7-04 STORM SEWERS 7-04.2 Materials Ductile Iron Storm Sewer Pipe 9-05.13 (******) ITARY 7-04.3 Construction Requirements Through Curb Inlet shall be per City of Tukwila Standard Plan DS-08 Existing storm sewer pipes to be abandoned will be filled with commercial concrete. Vacant (April 4, 2016) 7-06 TEMPORARY STREAM DIVERSION New section 7-06 is added: 7-06.1 Description This work shall include designing, installing, operating, maintaining, removing, and disposing of the temporary stream diversion, environmental compliance and other Work as detailed in these Specifications. 7-06.2 Materials All materials shall be as detailed in the Contractor's Temporary Stream Diversion (TSD) Plan. 7-06.3 Construction Requirements 7-06.3(1) General The Work shall include compliance with Washington State Water Quality Standards in WAC 173-201A, project permits, environmental commitments and these Provisions. The temporary stream diversion including water that is retained by the temporary stream diversion and any dewatering system shall be located within the permitted impact areas as shown in the Plans. The upstream diversion dam shall be constructed to a height sufficient to prevent stream flow from entering the work area. Scour protection shall be provided at the outfall of the temporary stream diversion systems and dewatering system to prevent flow re-entering the stream channel from mobilizing streambed and embankment sediments. When a temporary stream diversion is located in or near an intertidal zone the temporary stream diversion design shall include tidal influence. CITY OF TUKWILA, WA SP- 10 The Contractor shall have a contingency plan for each temporary stream diversion to be used in the event of a storm producing streamflow in excess of the design requirement, equipment failure, vandalism, or other incident. The equipment and materials for the contingency plan shall be exclusive to a specific temporary stream diversion. The contingency plan shall convey at a minimum fifty percent of the volume of water required for the temporary stream diversion and be operational within 2-hours. The Contractor shall immediately implement the contingency plan when required or specified by the Engineer. For each temporary stream diversion the Contractor shall arrange a meeting with the Engineer prior to implementation of the TSD Plan. At this meeting the Contractor shall explain to the Engineer the Work to be completed for the temporary stream diversion. The meeting shall be a minimum of 7 calendar days prior to start of the temporary stream diversion work. 7-06.3(2) Temporary Stream Diversion Plan 7-06.3(2)A General Plan Requirements The Contractor shall submit a Temporary Stream Diversion Plan in accordance with the requirements of a Type 2E Working Drawing and these Specifications. A separate TSD Plan shall be prepared and submitted for each temporary stream diversion that is required. The TSD Plan shall consist of a narrative and drawings detailing all temporary stream diversion requirements and shall encompass and protect all the areas affected by the Contractor's temporary stream diversion Work. The Contractor shall fully implement the TSD Plan at all times. The Contractor shall update the TSD Plan throughout project construction to reflect actual site conditions and the Contractor's Work. Changes to plan shall comply with WAC 196-23-020. At the request of the Engineer an updated TSD Plan shall be submitted as a Type 2E Working Drawing. A copy of the TSD Plan shall be on the project site at all times. The TSD Plan shall describe measures that will be taken to comply with Washington State Water Quality Standards in WAC 173-201A, applicable permits, environmental commitments and these Provisions. The Contractor shall incorporate the Diversion Schedule and Sequence into their Progress Schedule. 7-06.3(2)B Minimum Stream Volumes At all times of operation the Contractor's temporary stream diversion shall be designed to convey at a minimum of 2 cubic feet per second at all time. Table 1 shows the estimated peak flow rate for various storm events for reference. Table 1. Gilliam Creek Peak Flow Rates at 42nd Avenue Crossing. Flow statistic Discharge (cfs) Average summer low flow 0.5 Average annual flow 21 2-year recurrence peak flow 98 10-year recurrence peak flow 187 7-06.3(2)C Design Requirements: The Contractor's temporary stream diversion shall comply with the following requirements: Temporary Stream Diversion is also part of the temporary erosion and sedimentation control strategy and must be coordinated with Section 8-01 of the specifications, and the SWPPP. Installation and operation of the Temporary Water Bypass shall comply with all project permits. CITY OF TUKWILA, WA SP- 11 Temporary water bypass plans and designs shall be prepared, stamped, and signed by a professional Civil Engineer who has expertise in that type of facilities, is registered in the State of Washington, and is not an employee of the Contractor. Design of the temporary coffer dams shall be based upon the Contractor's construction method. Each temporary coffer dam shall be submitted to the Engineer for review prior to installation. All temporary coffer dams shall be designed by the Contractor's professional Civil engineer and submitted to the Engineer for review. The temporary dam shall fit within the project limit, and be able to withstand the water or earth hydrostatic pressure, and water flows. 7-06.3(2)D Plan Requirements The TSD Plan shall provide the following information in the following order: 1. Description and Location of the temporary stream diversion a. Identify the name of the water body where the temporary stream diversion will be placed. Provide a description of the temporary stream diversion. b. Provide drawings showing the location of the temporary stream diversion, including proposed access routes, temporary coffer dam, and equipment to be used to construct the diversion. 2. Schedule and Sequence a. Provide a sequence of Work, dates, and durations for when the following will occur, in accordance with the in -water work window in the Special Provisions: i. Fish exclusion. ii. TSD Plan Implementation Meeting iii. TSD installation. iv. Dewatering of the isolated Work area. v. Restoration and stabilization of the temporary stream diversion work area to prevent erosion. vi. Any relocations of the temporary stream diversion to accommodate the work sequence (if needed). vii. Channel rewatering. viii. Removal of the TSD. ix. Fish block removal. b. Include other Work that needs to be coordinated with the TSD (e.g., temporary erosion control). 3. Calculations and Materials a. Detail all elements of the temporary stream diversion; including but not limited to pipes, pumps, and other equipment. CITY OF TUKWILA, WA SP- 12 b. Calculations shall demonstrate the diversion system conveys the minimum peak flow specified by the Contracting Agency and include tidal influence where applicable. c. Temporary stream diversion shall include a water conveyance system to be used for dewatering and rewatering that is capable of conveying the flow required for the temporary stream diversion. d. Methods for anchoring temporary stream diversion pipe and associated hardware; include calculations to demonstrate the devices ability to anchor the pipe and associated hardware. e. Specifications for all materials and equipment to be used as part of the diversion including pump or diversion capacities and hose sizes. For example, provide the type, profile, and size of pipe. f. Provide the size of fish screens (mesh size and surface area) to be used, in accordance with the Special Provisions. 4. Stream Flow Blocking and Dewatering a. Provide the method(s), including locations and details (narrative and drawings) for blocking both the upstream and downstream ends of the diversion. Describe how minor leakage from upstream and downstream will be addressed. b. Include provisions for scour protection at the temporary stream diversion outfalls. c. Identify the means and methods for dewatering water and disposal of the water. 5. Contingency Plan a. Provide details for the contingency plan. b. Describe the Work that will be implemented to prevent the work area from becoming inundated. c. Provide the type and size of materials that will be used in the event of the work area becoming inundated. d. Describe how the contingency equipment and materials will be inspected and maintained so they are ready for use if required. e. The contingency plan shall be designed to be fully operational within 2 hours. 6. Inspection and Maintenance a. Provide the schedule and frequency for inspection of the temporary stream diversion; include weekends and holidays. b. Describe how maintenance will be conducted when inspections identify deficiencies in the temporary stream diversion. These include, but are not limited to removal and disposal of trapped sediment or debris and repairing Teaks. c. The Contractor shall keep a record of all inspections and maintenance of the temporary stream diversion. CITY OF TUKWILA, WA SP- 13 7. Rewatering the Stream Channel a. Detail how the stream channel will be rewatered to comply with water quality requirements. b. Identify measures that will prevent the stranding of fish during rewatering (i.e. describe methods, rates, and durations of the rewatering process knowing that flows downstream of the fish block must be maintained to protect fish). 8. Removal of the Temporary Stream Diversion a. Describe the sequence that will be used for removing the temporary stream diversion and methods to prevent water quality impacts. b. Describe how disturbed soil will be permanently stabilized. c. Describe any temporary pipes to remain (requires approval of the Engineer): their type, pipe class, size, location, and plugging procedure. 9. Other Work required for the Contractor's temporary stream diversion 7-06.3(3) Fish and Aquatic Species Exclusion and Notifications Prior to installing a temporary stream diversion, the Contractor shall install fish block nets upstream and downstream of the in -water Work area; and safely capture and relocate any fish and other aquatic organisms that become trapped between the block nets. As specified by the Engineer the Contractor shall perform the fish and aquatic species exclusion. The Contracting Agency will pay for this Work by the force account item "Fish Exclusion". 7-06.3(4) Inspection and Maintenance At a minimum, the Contractor shall perform the following daily (including weekends and holidays): 1. Check for and correct leaks; Inspect the upstream and downstream fish block nets and remove debris; Ensure the fish block nets remain sealed to the channel substrate; Inspect the upstream fish block net and all screens and similar facilities for impinged fish; a. The Contractor shall immediately notify the Contracting Agency when impinged fish are discovered. b. Removal of impinged fish will be by the Contracting Agency. Maintain a written record of inspection and maintenance activities; record to be available at the request of the Engineer. 7-06.3(5) Dewatering Work Area Dewatering the isolated in -water Work area shall occur at a rate slow enough to allow the Contracting Agency to safely capture and relocate all fish species and other aquatic organisms to avoid stranding, as determined by the Engineer. CITY OF TUKWILA, WA SP- 14 7-06.3(6) Rewatering the Stream Channel The Contractor shall notify the Engineer a minimum of 7 calendar days in advance of rewatering the stream channel. The Contractor shall introduce water to the new stream channel section and trap sediments until the stream section meets the requirements of these Provisions. Rewatering shall occur at a rate to avoid loss of surface water downstream while the new channel section water is restored. 7-06.3(7) Removal of the Temporary Stream Diversion The Contractor shall notify the Engineer two calendar days in advance of beginning the temporary stream diversion removal sequence. Once the water in the new stream channel will meet the applicable turbidity standards the Contractor may begin removal of the temporary stream diversion and the stream channel opened to flows. The Contractor shall immediately take all corrective actions necessary to prevent the water from exceeding the turbidity standards should the stream turbidity increase. All Work within the channel, except for removal of the temporary erosion control items, shall be completed before the temporary stream diversion is removed. All materials used for the diversion shall become the property of the Contractor and removed from the project limits, with the exception of any materials supplied by the Contracting Agency, unless otherwise specified by the Engineer. 7-21 STORMWATER TREATMENT UNITS AND DETENTION VAULT Section 7-21 is added: 7-21.1 Description 7-21.1(1) Work Included This work consists of constructing the Storm Water Detention Vault, Treatment and Pretreatment System of the type and sizes designated in accordance with the Plans, Specifications in conformity with the lines and grades. 7-21.1(2) General 1. Like items of equipment specified herein shall be the end products of one manufacturer in order to achieve standardization for operation, maintenance, spare parts, and manufacturer's service. The use of the manufacturer's name and model or catalog number is for the purpose of establishing the standard of quality and general configuration only. Products of other manufacturers will be considered in accordance with the General Conditions. 7-21.1(3) Manufacturers' Services 1. A manufacturer's representative for the equipment specified herein shall be present on the jobsite for a minimum of 3 person -days total, travel time excluded, for installation assistance, inspection, and certification of the equipment installation and proper operation. CITY OF TUKWILA, WA Ties VVV SP- 15 7-21.1(4) Submittals 1. Submittals for the stormwater detention vault, treatment unit and pretreatment unit shall include the following items in accordance with Division 1, GENERAL REQUIREMENTS. a. Shop Drawings for each stormwater detention vault, treatment unit, and pre-treatment unit installation including size, location, inlet and outlet inverts, appurtenant piping, valves, access ways, venting details; bedding, backfill, concrete top slab, and anchorage tiedown system details. The concrete top slab design shall be prepared by a registered structural engineer and provide HS-20 loading for each system. b. Complete materials list. c. Documentation of corrosion protection package elements and all site -specific protection needs. d. Manufacturer's data and calculations to demonstrate compliance with product criteria included within these Specifications. e. Manufacturer's recommended installation and maintenance procedures. f. Manufacturer's certificate of satisfactory installation and warranty. g. Temporary shoring plan for the installation of the detention vault. 7-21.2 Materials 7-21.2(1) Stormwater Treatment Systems 1. All stormwater treatment, and pretreatment system shall be precast structure delivered to the site prepackaged and complete. 2. Treatment Unit B and C shall include: a. A precast concrete vault with two chambers, a pretreatment chamber and treatment chamber, as described under Conformance with Standards below. This system shall uses biofiltration to provide treatment. b. The pretreatment chamber shall include banks of pre -filter cartridge. c. The treatment chamber shall include the filter media with underdrain manifold and vegetation. d. Fittings and required extension piping for vents. e. Access hatch, cover, and galvanized steel ladders with required extensions. f. Lifting lugs at balancing points for handling and installation. g. Identification nameplates affixed to a prominent location, durable and legible throughout equipment life. h. Filter Media i. Precast Concrete Vault Components i. Precast concrete vault shall be provided according to ASTM C857 and C858. ii. Vault joint sealant shall be Conseal CS-101 or approved equal. iii. If interior concrete baffle walls are provided, baffle walls shall be sealed to the interior vault walls and floor with a polyurethane construction sealant rated for use below the waterline, SikaFlex 1 a or equal. Contractor to provide sealant material and installation unless completed prior to shipment. CIITY OF TUKWILA, WA SP- 16 iv. Frames and covers shall be gray cast iron and shall meet AASHTO H-20 loading requirements, and shall be provided according to ASTM A48. v. Doors shall have hot -dipped galvanized frame and covers. Covers shall have diamond plate finish. Each door shall be equipped with a recessed lift handle. Doors shall meet H-20 loading requirements for incidental traffic, at a minimum. vi. Steps shall be constructed of copolymer polypropylene conforming to ASTM D-4101. Steps shall be driven into preformed or drilled holes once concrete is cured. Steps shall meet the requirements of ASTM C-478 and AASHTO M-199. The 1/" Grade 60 deformed reinforcing bar shall meet ASTM A-615. The Stormwater Treatment Unit B and Unit C shall be as follows : Modualr WetlandsTM (model MWS-L-4-8-V) manufactured by Modular Wetland Systems, Inc. Corporation. The systems shall have "General Use Level Designation" for Basic Treatment from the Washington State Dept of Ecology. See http://www. ecy.wa.gov/programs/wq/stormwater/newtech/technologies. html 1. Pretreatment Units A shall include: A circular "swirl chamber" within a manhole to treat the incoming water containing a sludge retaining baffle and oil retaining baffle. Fittings and required extension piping for vents. Access manholes and galvanized steel ladders with required extensions. Lifting lugs at balancing points for handling and installation. Identification nameplates affixed to a prominent location, durable and legible throughout equipment life. The Pretreatment Unit A shall be as follows or equal as approved by the Engineer: The systems shall have "General Use Level Designation" for TSS Pretreatment from the Washington State Dept of Ecology. See http://www.ecy.wa.qov/programs/wq/stormwater/newtech/technologies.html Unit A shall be a CDS TM Stormwater Treatment System (model CDS 3030) manufactured by Contech Engineered Solutions, The systems shall function as designed by the manufacture when fit within the plan footprints and hydraulic profiles as shown on the plans. 2. Locking manhole frames and covers shall have the word "DRAIN" on the cover. 3. All metal parts shall be corrosion resistant. 7-21.2(2) Stormwater treatment system Bedding and Backfill 1. Bedding and backfill materials for stormwater treatment system installation shall be in accordance with Section 7-05.3. CITY OF TUKWILA, WA SP- 17 7-21.2(3) Conformance with Standards The Stormwater Pre -Treatment Unit A, Treatment Unit B, and Treatment Unit C shall conform to the treatment peak flow rates below. They shall conform to applicable ASTM standards for underground precast concrete utility installation, and shall meet the following minimum performance and sizing requirements: Max. Min. WWHM Water Headloss at Pretreatment Quality Treatment 25-year Flow Treatment Sediment Unit Flow (On-line) (cfs) (cfs)* Flow (inches) Storage (cy) A 2.9 27.0 6 2.1 B 0.07 1.2 16 1.0 C 0.07 1.4 8 1.0 The hydraulic profiles and horizontal footprint of the Stormwater Treatment and Pretreatment Systems shall fit within the storm drain profiles and horizontal areas depicted for each system on the plans. Site conditions will limit the selection of individual treatment units. 7-21.2(4) Stormwater Vault 7-21.2(4)A General The stormwater detention vault shall be fabricated from precast concrete elements. Allowable configuration are: 1. 3-sided structure with a separate precast bottom slab element, or 2. 4-sided monolithic box structure. 7-21.2(4)B Design and Material Requirements: 1. In the event of a conflict between or among standards, the more stringent standard shall govern. 2. 3-sided vault structure: comply with ASTM C890, except as modified herein. 3. 4-sided box structure: Comply with ASTM 1577, except as modified herein. 4. Nominal dimensions as shown in the drawings. 5. Construction: Rigid type and behave monolithically. 6. Design in accordance with current edition of AASHTO LRFD Bridge Design Specification or AASHTO standard Specifications for Highway Bridges. 7. Design shall accommodate additional stresses or Toads that may be imposed during factory precasting, transporting, erection, and placement. 8. Blockouts for penetrations shall be as shown in Drawings. 9. Joints: CITY OF TUKWILA, WA SP- 18 a. Watertight joints to provide lasting, watertight seal. b. Joints between vault sections and riser sections shall be rubber gasketed in conformance with ASTM C443. 10. Joint mortar. Comply with ASTM C387, type S or in accordance with non -shrink cement sand grout. 11. 28-day concrete compressive strength: 5,000 psi minimum. 12. Vault floor a. Slope of vault floor shall be as shown in Drawings. b. Slope may be applied after precasting, (2-inch minimum thickness) with Class 3000 concrete. 7-21.2(4)C Accessories 1. Access ladders shall consist of polyproplylene steps per Standard Plans. 7-21.2(4) Warranties 1. Manufacturer shall warrant all products to be free from defects in materials and workmanship for a minimum of 1 year from the date of installation. Manufacturer shall inspect and repair or replace defective parts during warranty period at no additional cost to Owner. 7-21.3 Construction Requirements 7-21.3(1) General 1. Installation of stormwater detention vault, treatment unit and pre-treatment unit and all appurtenances shall be in accordance with the Drawings and the manufacturer's recommended installation procedures, and fit within the footprint plan area and profile grades shown on the Drawings. 2. Bedding and backfill for stormwater treatment units shall be installed in accordance with Division 2, Earthwork. Refer to the Geotechnical Report for subsurface information. 3. Contractor shall exercise extreme care in the site storage, transport, and installation of the stormwater treatment system, and appurtenant piping. Damage as a result of improper handling or installation shall be the sole responsibility of Contractor and shall be repaired in accordance with manufacturer recommendations or replaced at no additional cost to Owner. 4. Concrete placed for the Vault and manhole structure shall be placed in accordance with section 6-02 5. Shoring and extra excavation for the construction of the vaults is limited as specified in section 2- 09. 6. Pothole utilities in the vicinity of the vault to identify existing utilities locations and allow time for relocation of conflicts utilities as needed. 7. Temporary structural shoring for the detention vault shall be designed and installed by the Contractor. CITY OF TUKWILA, WA SP- 19 8. Possible Settlement: If subgrade is encountered that may require removal to prevent structure settlement, notify Engineer. The Engineer will determine depth of over -excavation and means of stabilizing subgrade prior to structure installation. 9. Place 6-inch minimum thickness of crushed gravel on undisturbed earth or modified subgrade; thoroughly compacted. 7-21.3(2) Precast Concrete Vault 1. Set precast vault on crushed rock base material that has been placed in maximum 12-inch lifts, loose thickness, and compacted to at least 95-percent of the maximum dry density as determined by the standard Proctor compaction test, ASTM D698, at moisture content of +/-2% of optimum water content. 2. Vault floor shall slope 5% maximum across the width and slope downstream 1 inch per 12 foot of length. Vault top finish grade shall be even with surrounding finish grade surface unless otherwise noted on plans. 3. Inlet and outlet pipes shall be stubbed in and connected to precast concrete vault according to Engineer's requirements and specifications. 4. If grout is used, Contractor to grout all inlet and outlet pipes flush with or protruding up to 2 inches into interior of vault. 7-21.3(3) Excavation and Backfill 1. Remove and keep water clear from excavation at all times during construction. 2. Excavation as specified in Division 2-02. 3. Backfill: The detention vault shall be backfilled to the roadway subgrade with gravel borrow and the following: a. Backfill around the vault evenly on both sides of the structure. b. Backfill around the sides of vault should be placed in horizontal lifts not exceeding 8 inches prior to compaction, keeping the elevation the same at all times on both sides of the vault, and compacted to not less than 90 percent of its maximum density in accordance with ASTM D1557. 7-21.3(4) Installation Warranty Manufacturer's representative shall observe installation of the stormwater filters and shall provide a certificate of satisfactory installation to Owner prior to operation. 7-21.3(5) Operational Testing The Manufacturers shall participate in and observe operational testing of the stormwater treatment systems for design performance. All observed problems shall be rectified prior to Owner acceptance. CITY OF TUKWILA, WA SP- 20 DIVISION 8 - MISCELLANEOUS CONSTRUCTION 8-01 EROSION CONTROL AND WATER POLLUTION CONTROL 8-01.2 Materials Section 8-01.2 is supplemented with the following: "Native Grass Seed Mix A" shall meet the requirements of Section 9-14.2. "Seed/Sod Mix B" shall meet the requirements of Section 9-14.2. 8-01.3(1) Construction Requirements General Section 8-01.3(1) is supplemented with the following: (January 5, 2015) The Contractor shall be responsible for all Work required for compliance with the Construction Stormwater General Permit (CSWGP) including annual permit fees. TESC Compliance Incentive If the Proposal includes the Bid item "TESC Compliance Incentive" then an incentive has been established to provide the Contractor the opportunity to earn additional payment for carrying out well -planned and proactive implementation of the CSWGP requirements in order to protect the environment during construction. The Contractor will earn a TESC Compliance Incentive payment in the amount of five percent of monies paid on a progress estimate for the Bid item Erosion Control and Water Pollution Prevention when all Work by the Contractor during the period of that progress estimate complies with all Contract requirements for Erosion Control and Water Pollution Prevention and the CSWGP. The first through eighth paragraphs of Section 8-01.3(1) are deleted and replaced with the following: (January 5, 2015) The Contractor shall install a high visibility fence along the site preservation lines shown in the Plans or as instructed by the Engineer. Throughout the life of the project, the Contractor shall preserve and protect the delineated area, acting immediately to repair or restore any fencing damaged or removed. Controlling pollution, erosion, runoff, and related damage requires the Contractor to perform temporary Work items including but not limited to: 1. Providing ditches, berms, culverts, and other measures to control surface water. 2. Building dams, settling basins, energy dissipaters, and other measures, to control downstream flows. 3. Controlling underground water found during construction. CITY OF TUKWILA, WA SP- 21 4. Covering or otherwise protecting slopes until permanent erosion -control measures are working. To the degree possible, the Contractor shall coordinate this temporary Work with permanent drainage and erosion control Work the Contract requires. All sediment control devices including, but not limited to, sediment ponds, perimeter silt fencing, or other sediment trapping BMPs shall be installed prior to any ground disturbing activity. Clearing, grubbing, excavation, borrow, or fill within the Right of Way shall never expose more erodible earth than as listed below: Western Washington (West of the Cascade Mountain Crest) Eastern Washington (East of the Cascade Mountain Crest) May 1 through September 30 17 Acres April 1 through October 31 17 Acres October 1 through April 30 5 Acres November 1 through March 31 5 Acres 8-01.3(1)A Submittals Section 8-01.3(1)A is revised to read: (August 3, 2015) The Contractor shall modify the Temporary Erosion Control Plans included in the Plans to conform to the Contractor's submitted SWPPP, proposed construction methods and phasing for project. A Temporary Erosion and Sediment Control (TESC) Plan consists of a narrative section and plan sheets that meets Ecology's Stormwater Pollution Prevention Plan (SWPPP) requirement in the CSWGP. When the Contracting Agency has developed a TESC Plan for a Contract the narrative is included in the appendix to the Special Provisions and the TESC plan sheets are included in the Contract Plans. The Contracting Agency TESC plan will not include off -site areas used to directly support construction activity. The Contractor shall either adopt the TESC Plan in the Contract or develop a new TESC Plan. If the Contractor adopts the Contracting Agency TESC Plan the Contractor shall modify the TESC Plan to meet the Contractor's schedule, method of construction, and to include off -site areas that will be used to directly support construction activity such as equipment staging yards, material storage areas, or borrow areas. Contractor TESC Plans shall include all high visibility fence delineation shown on the Contracting Agency Contract Plans. All TESC Plans shall meet the requirements of the current edition of the WSDOT Temporary Erosion and Sediment Control Manual M 3109 and be adapted as needed throughout construction based on site inspections and discharge samples to maintain compliance with the CSWGP. The Contractor shall develop a schedule for implementation of the TESC work and incorporate it into the Contractor's progress schedule. The Contractor shall submit their TESC Plan (either the adopted plan or new plan) and implementation schedule as Type 2 Working Drawings. At the request of the Engineer updated TESC Plans shall be submitted as Type 1 Working Drawings. 8-01.3(1)B Erosion and Sediment Control (ESC) Lead In this section, replace the term "Temporary Erosion and Sediment Control Plan" (TESC) with "Stormwater Pollution Prevention Plan" (SWPPP). Section 8-01.3(1)B is supplemented by the following; CITY OF TUKWILA, WA SP- 22 The ESC Lead shall be responsible for the monitoring, reporting and recordkeeping requirements as specified in the Construction Stormwater General Permit and section 8-01.3(1)G. The second and third paragraphs in Section 8-01.3(1)B are revised to read: (January 5, 2015) The ESC Lead shall implement the SWPPP Plan. Implementation shall include, but is not limited to: 1. Installing and maintaining all temporary erosion and sediment control Best Management Practices (BMPs) included in the SWPPP Plan to assure continued performance of their intended function. Damaged or inadequate TESC BMP's shall be corrected immediately. 2. Updating the SWPPP Plan to reflect current field conditions. 3. Discharge sampling and submitting Discharge Monitoring Reports (DMRs) to Ecology in accordance with the CSWGP. 4. Develop and maintain the Site Log Book as defined in the CSWGP. As a part of the Site Log Book, the Contractor shall develop and maintain a BMP tracking table to show that identified TESC compliance issues are fully resolved within 10 calendar days. The table shall include the date an issue was identified, a description of how it was resolved, and the date the issue was fully resolved. The ESC Lead shall also inspect all areas disturbed by construction activities, all on -site erosion and sediment control BMP's, and all stormwater discharge points at least once every calendar week and within 24-hours of runoff events in which stormwater discharges from the site. Inspections of temporarily stabilized, inactive sites may be reduced to once every calendar month. The Erosion and Sediment Control Inspection Form (WSDOT Form 220-030) shall be completed for each inspection and a copy shall be submitted to the Engineer no later than the end of the next working day following the inspection. 8-01.3(1)C Water Management Section 8-01.3(1)C is supplemented with the following: (August 6, 2012) Offsite Stormwater Stormwater is known to enter the project site at the following locations: 42ND 50+20 LT - 12-inch storm drain 42ND 50+20 RT - 18 inch storm drain 42ND 59+10 LT — 8 inch storm drain 42ND 61+95 LT - 12-inch storm drain 42ND 63+30 RT - 12-inch storm drain 42ND 65+15 LT - 12-inch storm drain CITY OF TUKWILA, WA SP- 23 42ND 67+20 RT - 6-inch SR518 downspout 42ND 71+40 LT - 12-inch storm drain The Contractor shall, prior to disruption of the normal water course, intercept the offsite stormwater and pipe it either through or around the project site in such a manner that it is not combined with onsite stormwater and it is discharged at its pre -construction outfall point in such a manner that there is no increase in erosion below the site. The method for performing this work shall be included in the Contractor's temporary erosion control plan. (April 3, 2006) 8-01.3(1)F SWPPP PREPARATION AND GENERAL PERMIT COMPLIANCE Section 8-01.3(1)F is added: The Contractor shall prepare a Storm Water Pollution Prevention Plan, (SWPPP) that they shall use and implement in compliance with Department of Ecology's NPDES and State Waste Discharge General Permit for Stormwater Discharges Associated with Construction Activity (General Permit). This work shall include the following: 1. Preparing, revising, maintaining the SWPPP in compliance with the General Permit; 2. Designing and planning all sediment control/erosion control measures, and BMPs that are not shown in the plans that are needed to meet general permit requirements (including engineering calculations for temporary storage of construction stormwater); 3. Planning, performing and reporting of storm water monitoring. For each construction stage, the SWPPP shall be revised and updated by the Contractor, and submitted for approval to the Engineer. The SWPPP and Contractor's revisions shall consist of the Contractor's complete strategy to meet the requirements of the General Permit. The Contactor shall include and modify as necessary the Site Preparation and Erosion Control Plan drawings provided as part of the Contract Plans. The Contractor shall review and modify the SWPPP as necessary to be consistent with the actual work schedule, sequencing, and construction methods that will be used on the project. The SWPPP and revisions shall meet the requirements of the General Permit. The Contractor shall provide and maintain on -site the standby equipment and materials to comply with the General Permit. The original SWPPP and any Contractor revisions shall document all the erosion and sediment control Best Management Practices (BMPs) proposed, whether permanent or temporary. The plan shall document installation procedures, materials, scheduling, and maintenance procedures for each erosion and sediment control BMP. The Contractor shall submit the updated/revised SWPPP for the Engineer's approval before any work begins. The Contractor shall allow at least five working days for the Engineer's review of the initial SWPPP update or any revisions to the SWPPP. Failure to approve all or part of any such plan shall not make the Contracting Agency liable to the Contractor for any work delays. The Contractor may not begin work without an approved Contractor's SWPPP. In addition, the SWPPP shall outline the procedures to be used to prevent high pH stormwater or dewatering water from entering surface waters. The plan shall include how the pH of the water will be maintained in compliance with the Construction Stormwater General Permit in Appendix C prior to being discharged from the project or entering surface waters. CITY OF TUKWILA, WA SP- 24 The Demolition and Erosion Control Plan included in the Plans shall be supplemented as necessary to meet the General Permit requirements. As part of the lump sum item "SWPPP Preparation and General Permit Compliance", the Contractor shall plan for and design all additional erosion control and water pollution control measures, systems, or BMPs necessary to meet the requirements of the General Permit. 8-01.3(1)G Stormwater Monitoring Requirements Section 8-01.3(1)G is added: As part of the item SWPPP and General Permit Compliance, monitoring of stormwater shall be conducted for comparisons to benchmark values for turbidity and pH as described in the General Permit. The Contractor shall provide weekly stormwater monitoring of the project stormwater discharge locations for turbidity and pH as required for sites which disturb between 1 and 5 acres as described in the General Permit. In addition, the Contractor shall: 1. Review project maps, project definition, and the proposed construction schedule to understand when and where construction activities have the greatest potential to impact specific water quality parameters 2. Assume three discharge locations to be monitored. Establish three specific project sampling locations for monitoring at each discharge location to determine background, outfall, and downstream water quality conditions. The Contractor shall assume: one discharge location for discharges for the Gilliam Creek one discharge for discharges form 42nd Ave S., west of Gilliam Creek one discharge for discharges form 42nd Ave S., east of Gilliam Creek. 3. Develop a map to be included in the SWPPP for approval that identifies the Contractor's proposed sampling station locations. Keep the map with the monitoring and reporting forms so personnel responsible for monitoring, recording and reporting can understand the locations and access the sampling stations. 4. Establish procedures that adapt to unanticipated events such as severe storms, schedule adjustments, modified construction techniques, etc. Submit any modifications to the procedures to the Project Engineer for approval. 5. Calibrate equipment according to manufacturers' recommendations and according to their specified schedule. If data appears suspect, perform additional calibrations immediately. The Contractor shall complete all online reporting as required by the NPDES permit. Payment for planning performing and the related reporting/record keeping for the storm water monitoring will be made under the lump sum item "SWPPP Preparation and General Permit Compliance". Turbidity and pH Exceedances Following any exceedances of the turbidity or pH benchmarks, the Contractor shall provide the following at no additional cost to the Contracting agency: 1. The necessary SWPPP revisions and on -site measures/revisions including additional source control, BMP maintenance, and/or additional stormwater treatment BMPs that are necessary to prevent continued exceedance of turbidly and/or pH benchmarks. CITY OF TUKWILA, WA SP- 25 2. The regulatory notification to the Dept. of Ecology and to the Engineer of any monitoring results requiring regulatory notification. 3. The additional daily sampling and reporting measures described in the General Permit to verify when project site runoff is in compliance. At no cost to the City, the Contractor shall be responsible for paying any fines levied against the City for any failure by the Contractor to comply with the permit requirements as listed in these specifications and as indicated in the permit(s). 8-01.3(2) Seeding, Fertilizing and Mulching 8-01.3(2)C Liming Section 8-01.3(2)C is supplemented with the following: (******) Lime shall be applied as determined by soil test results and recommendations. 8-01.3(2)D Mulching Section 8-01.3(2)D is supplemented with the following: (January 5, 2015) Long-term mulch and moderate -term mulch shall be applied at a rate of 2,700 pounds per acre with no more than 1,400 pounds per acre applied in a single lift. 8-01.3(15) Maintenance (January 5, 2015) The fifth paragraph of Section 8-01.3(15) is deleted. 8-01.3(16) Removal The first paragraph of Section 8-01.3(16) is revised to read: (January 5, 2015) The Contractor shall remove all temporary BMP's and all associated hardware from the project limits prior to Physical Completion unless otherwise approved by the Engineer. At the request of the Contractor and at the sole discretion of the Engineer the CSWGP may be transferred back to the Contracting Agency. Approval of the Transfer of Coverage request will require the following: 1. All other Work required for Contract Completion has been completed. 2. All Work required for compliance with the CSWGP has been completed to the maximum extent possible. This includes removal of BMPs that are no longer needed and the site has undergone all Stabilization identified for meeting the requirements of Final Stabilization in the CSWGP. 3. An Equitable Adjustment change order for the cost of Work that has not been completed by the Contractor. CITY OF TUKWILA. WA SP- 26 4. Submittal of the Washington State Department of Ecology Transfer of Coverage form (Ecology form ECY 020-87a) to the Engineer. If the Engineer approves the Transfer of Coverage back to the Contracting Agency the requirement in Section 1-07.5(3) for the Contractor's submittal of the Notice of Termination form to Ecology will not apply. 8-02 ROADSIDE RESTORATION 8-02.2 Materials Section 8-02.2 is supplemented with the following: The Compost shall conform to the requirements of Section 9-14.4(8). 8-02.3 Construction Requirements 8-02.3(4) Topsoil 8-02.3(4)A Topsoil Type A Section 8-02.3(4)A is supplemented with the following: Topsoil Type A shall be placed to a non -compacted depth as indicated on plans. The topsoil shall be thoroughly blended prior to placement. The Contractor shall submit a Type 1 Working Drawing consisting of independent test results from an accredited laboratory demonstrating the Topsoil Type A meets the requirements of Section 9-14.1(1). The Type 1 Working Drawing shall also include the Request for Approval of Material in accordance with Section 1-06.1(2). 8-02.3(5)A Planting Area Preparation Section 8-02.3(5) is supplemented with the following: (August 5, 2013) After the initial planting area weed control, soil placement, grading, and the installation of irrigation lines are completed, and prior to planting, all designated planting areas shall be covered with compost. Prior to placement of compost, the application methods shall be approved by the Engineer. Compost shall not be placed when a condition exists, such as frozen or water saturated soil that may be detrimental to successful application or soil structure. The Contractor shall notify the Engineer a minimum of five working days prior to the start of compost work. Compost shall be uniformly and evenly placed in all designated areas at a depth as indicated on plans. 8-02.3(8) Planting Section 8-02.3(8) is supplemented with the following: (February 25, 2013) CITY OF TUKWILA, WA SP- 27 When work requiring disturbance within planting area(s) is complete, the Contractor shall perform planting work within the next available planting window. 8-02.3(11) Bark or Wood Chip Mulch Section 8-02.3(11) is supplemented with the following: (April 2, 2012) Bark mulch or wood chip mulch shall be placed to a uniform non -compacted depth of 3" over all planting areas. Bark or wood chip mulch shall not be placed in areas of standing or flowing water. -.V1(I ct,l`� 8-03 IRRIGATION SYSTEM 1 r 8-03.1 Description Section 8-03.1 is replaced with the following: This Work consists of installing a Contractor designed temporary irrigation system for the Gilliam Creek Revegetation Area. Irrigation system to remain in place for 5 years. Owner furnished'/" meter and electrical service. 8-03.3 Construction Requirements Section 8-03.3 first paragraph is replaced with the following: Irrigation design shall meet the requirements of the City of Tukwila, Engineering Department codes, specifications, details and inspection requirements. Irrigation system shall be designed by the Contractor, and submitted to the Engineer for approval. Landscape contractor shall submit an irrigation system design for the area indicated on the plans in the revegetation area. The system shall have a water pressure minimum of 45 pounds per square inch (psi) and maximum of 50 psi at the connection to main backflow prevention device and 30 psi at the last head in each zone. The shop drawing submittal shall also include a system pressure calculation and irrigation requirement of the area and indicate the following: 1. Head, piping, valve, controller, and sensor layout. 2. Pipe, valve, backflow preventer, and controller. Irrigation contractor to review the planting area with the Engineer and Landscape contractor prior to accepting area for irrigation installation. Contractor shall note in writing any changes or issues that arise. Site preparation shall maintain existing grades and flow lines unless otherwise specified. Material displaced by the irrigation contractor's operations shall be removed and/or disposed of appropriately. All irrigation lines shall be placed and tested prior to the installation of plant material. The irrigation system will connect to the water service where indicated by the Engineer and the irrigation controls shall be designed and installed within the project boundaries. CITY OF TUKWILA, WA SP- 28 Provide a pressure test and operation test including verification of sprinkler head layout. Provide a water schedule that corresponds to the gallons per minute flow for each zone by week, month, and year. Provide an as -built drawing and equipment schedule. The irrigation contractor shall continue to maintain the system until final acceptance by the Engineer after planting. This shall include keeping the system operational, adjusted per the plant requirements, and replacing defective parts. 8-04 CURBS, GUTTERS, AND SPILLWAYS Add the following section: 8-04.3(4) Integral Curb "Integral Curb" shall be constructed as described in the detail provided in the plans. 8-12 CHAIN LINK FENCE AND WIRE FENCE 8-12.2 Materials Section 8-12.2 is supplemented with the following: (August 3, 2009) Coated Chain Link Fence Chain Zink fence fabric shall be hot -dip galvanized with a minimum of 0.8 ounce per square foot of surface area. Fencing materials shall be coated with an ultraviolet -insensitive plastic or other inert material at least 2 mils in thickness. Any pretreatment or coating shall be applied in accordance with the manufacturer's written instructions. The Contractor shall provide the Engineer with the manufacturer's written specifications detailing the product and method of fabrication. The color shall match Federal Standard 595 color number FS17038 (Black), or be as approved by the Engineer. Samples of the coated fencing materials shall be approved by the Engineer prior to installation on the project. The Contractor shall supply the Engineer with 10 aerosol spray cans containing a minimum of 14 ounces each of paint of the color specified above. The touch-up paint shall be compatible with the coating system used. 8-14 CEMENT CONCRETE SIDEWALKS 8-14.3 Construction Requirements Section 8-14.3 is supplemented with the following: (April 4, 2011) CITY OF TUKWILA, WA SP- 29 The Contractor shall request a pre -meeting with the Engineer to be held 2 to 5 working days before any work can start on cement concrete sidewalks, curb ramps or other pedestrian access routes to discuss construction requirements. Those attending shall include: 1. The Prime Contractor and Subcontractor in charge of constructing forms, and placing, and finishing the cement concrete. 2. Project Engineer (or representative) and Project Inspectors for the cement concrete sidewalk, curb ramp or pedestrian access route Work. Items to be discussed in this meeting shall include, at a minimum, the following: 1. Slopes shown on the Plans. 2. Inspection 3. Traffic control 4. Pedestrian control, access routes and delineation 5. Accommodating utilities 6. Form work 7. Installation of detectable warning surfaces Add the following section: 8-14.3(6) Special Color and Scoring "Paved buffer Zone" shall be Type II Gray Portland Cement with color additive and special scoring as shown in the paving details. Color shall be a uniform, warm brown/black color "taupe", with a light broom finish. Color additives shall contain pure concentrated mineral pigments specially processed for mixing into concrete and complying to ASTM C979. "Paved buffer Zone" shall be cured and sealed with a curing compound and sealer to be approved by color additive manufacturer, for use with colored concrete, and shall comply with ASTM C309. Curing compound and sealer shall be water based, non-flammable, low gloss, non -yellowing, non -clouding and wear resistant. Compound sealer shall protect against water damage, oil and common stains, formulated for exterior use. Samples for color selection: Contractor shall submit color additive manufacturer's sample chip set, and indicate color additive numbers and required dosage rates for approval by Engineer. 8-22 PAVEMENT MARKING 9-06.16 Permanent Signing Materials Roadside Sign Structures Section 9-06.16 is supplemented with the following: (January 3, 2011) CITY OF TUKWILA, WA SP- 30 Perforated Steel Square Sign Post System Where noted in the Plans, steel sign post systems shall be square, pre -punched galvanized steel tubing, that are NCHRP 350 Test Level 3 Certified and FHWA approved. The steel sign post system shall include all anchor sleeves, and other hardware required for a complete sign installation. System Acceptance Systems listed in the current QPL will be accepted per the QPL approval code. Systems not listed in the QPL will be accepted based on a Supplier's Certificate of Compliance. The Supplier's Certificate of Compliance will be a contract specific letter from the supplier stating the system is NCHRP 350 Test Level 3 compliant. 8-24 ROCK AD GRAVITY BLOCK WALL AND GABION CRIBBING 8-24.1 Description Section 8-24.1 is replaced with the following: This Work consists of constructing rock and modular block wall(s) in accordance with the Plans, Special Provisions, these Specifications, or as designated by the Engineer. 8-24.2 Materials Section 8-24.2 is supplemented with the following: (*****) 1. Modular concrete units shall conform to the following requirements: a. Face color - concrete gray, unless otherwise specified. b. Face finish sculptured rock face in angular tri-planer configuration. Other face finishes will not be allowed without written approval of Owner. c. Bond configuration running with bonds nominally located at midpoint vertically adjacent units, in both straight and curved alignments. d. Exposed surfaces of units shall be free of chips, cracks or other imperfections when viewed from a distance of 10 feet under diffused lighting. 2. Modular concrete materials shall conform to the requirements of ASTM C1372 - Standard Specifications for Segmental Retaining Wall Units. 3. Modular concrete units shall conform to the following structural and geometric requirements measured in accordance with ASTM C140 Sampling and Testing Concrete Masonry Units: a. Compressive strength: 3000 psi; b. Absorption: 8 % (6% in northern states) for standard weight aggregates; c. Dimensional tolerances: ± 1/8" from nominal unit dimensions not including rough split face, ±1/16" unit height - top and bottom planes; d. Unit size: 8" (H) x 18" (W) x 18"(D) minimum; e. Unit weight: 100 ibs/unit minimum for standard weight aggregates. CITY OF TUKWILA, WA SP- 31 4. Modular concrete units shall conform to the following performance testing: a. Inter unit shear strength in accordance with ASTM D6916 (NCMA SRWU-2): 1500 plf minimum at 2 psi normal pressure; b. Geogrid/unit peak connection strength in accordance with ASTM D6638 (NCMA SRWU- 1): 900 plf minimum at 2-psi normal force. 5. Modular concrete units shall conform to the following constructability requirements: a. Vertical setback: 1/8" ± per course (near vertical) or 1" + per course per the design; b. Alignment and grid positioning mechanism fiberglass pins, two per unit minimum; c. Maximum horizontal gap between erected units shall be 0 1/2 inch 6. Shear Connectors Shear connectors shall be 1/2-inch diameter thermoset isopthalic polyester resin pultruded fiberglass reinforcement rods or equivalent to provide connection between vertically and horizontally adjacent units with the following requirements: a. Flexural Strength in accordance with ASTM D4476: 128,000 psi minimum; b. Short Beam Shear in accordance with ASTM D4475: 6,400 psi minimum. 7. Base Leveling Pad Material Material shall consist of a compacted crushed surfacing base course for rock wall, and a compacted crushed surfacing base course or non reinforced concrete for modular block wall as shown on the construction drawings. 8. Unit Drainage Fill for Modular Block Wall Unit drainage fill shall conform to the requirements of Section 9-03.12(4) Gravel Backfiil for Drains. One cubic foot, minimum, of drainage fill shall be used for each square foot of wall face. Drainage fill shall be placed within cores of, between, and behind units to meet this requirement. 9. Drainage Pipe Drainage pipe shall conform to the requirements of Section 9-05.2(7). 10. Geotextile Filter Fabric Geotextile filter fabric shall conform to Section 9-33.2(1) for separation for rock wall, and for low survivability nonwoven fabric Class A for modular block wall. 8-24.3 CONSTRUCTION REQUIREMENTS Section 8-24.3 is supplemented with the following: 8-24.3(1) Rock Wall 8-24.3(1)F Base Leveling Pad 1. Leveling pad material shall be placed to the lines and grades shown on the construction drawings. CITY OF TUKWILA, WA SP- 32 Soil leveling pad materials shall be compacted to a minimum of 95 % Standard Proctor density per ASTM D-698 or 92% Modified Proctor Density per ASTM D1557. 3. Leveling pad shall be prepared to insure full contact to the base surface of the base rocks. 8-24.3(4) Modular Block Wall 8-24.3(4)A Excavation 1. Excavate to the lines and grades shown on the construction drawings. Proof roll foundation area as directed by the Engineer. 2. Over excavation and replacement of unsuitable foundation soils and replacement with approved compacted fill as directed by the Engineer. 8-24.3(4)B Base Leveling Pad 1. Leveling pad material shall be placed to the lines and grades shown on the construction drawings, to a minimum thickness of 6 inches and extend laterally a minimum of 6" in front and behind the modular wall unit. 2. Soil leveling pad materials shall be compacted to a minimum of 95 % Standard Proctor density per ASTM D-698 or 92% Modified Proctor Density per ASTM D1557. 3. Leveling pad shall be prepared to insure full contact to the base surface of the concrete units. 8-24.3(4)C Modular Unit Installation 1. First course of units shall be placed on the leveling pad at the appropriate line and grade. Alignment and level shall be checked in all directions and insure that all units are in full contact with the base and properly seated. 2. Place the front of units side -by -side. Do not leave gaps between adjacent units. Layout of corners and curves shall be in accordance with manufacturer's recommendations. 3. Install shear/connecting devices per manufacturer's recommendations. 4. Place and compact drainage fill within and behind wall units. Place and compact backfill soil behind drainage fill. Follow wall erection and drainage fill closely with structure backfill. 5. Maximum stacked vertical height of wall units, prior to unit drainage fill and backfill placement and compaction, shall not exceed two courses. 8-24.3(4)D Cap Installation 1. Cap units shall be glued to underlying units with an all-weather adhesive recommended by the manufacturer. 8-24.3(4)E As -built Construction Tolerances 1. Vertical alignment: ± 1.5" (40 mm) over any 10' (3 m) distance. 2. Wall Batter: within 2 degrees of design batter. 3. Horizontal alignment: ± 1.5" (40 mm) over any 10' (3 m) distance. CITY OF TUKWILA, WA • SP- 33 4. Corners, bends & curves: ± 1 ft (300 mm) to theoretical location. 5. Maximum horizontal gap between erected units shall be 1/2 inch (13 mm). 8-26 VALVE BOXES 8-26.1 Description Valve Boxes shall be adjusted in the same manner as manholes per Section 7-05.3(1) Adjusting Manholes and Catch Basins to Grade of the Standard Specifications. 8-32 JOINT UTILITY TRENCH FOR COMMUNICATIONS NEW SECTION 8-32.1 Description Joint trench work consists of excavation, shoring, installation of conduit, handholes, vaults, pedestals, pole risers, placement of bedding and backfill for the relocation of CenturyLink, Comcast and Zayo facilities from overhead poles to new underground conduits and vaults. 8-32.1(1) Work by Contractor The Contractor's work shall include the following: 1. Sawcutting pavement (HMA and/or Concrete) as necessary according to the joint trench alignment. 2. Excavating and shoring the joint trenches. 3. Installing conduit, conduit bends, connections, pole riser brackets, Pole riser conduit and vaults. 4. Furnishing, placing, and compacting joint trench pipe zone bedding. 5. Placing and compacting native or import trench backfill material 6. Furnishing and installing marker tape. 7. Connecting conduits to existing vaults, including all bends and fittings. 8. Cutting and capping conduit. 9. Cleaning all conduits, proofing the conduits with a mandrel, and installing mule tape to pull utility conductors. 10. Other work indicated on the Plans and in the Specifications and Special Provisions. Upon completion of the JOINT UTILITY TRENCH FOR COMMUNICATIONS, the Contractor shall submit a statement that their work is substantially complete and requests concurrence and/or punch list from the City. 8-32.1(2) Work by CENTURY LINK, COMCAST and ZAYO Century Link, Comcast and Zayo will be responsible for furnishing and installing cables, conductors, removal of poles, and other Century Link, Comcast and Zayo equipment that is no longer needed. CITY OF TUKWILA, WA SP- 34 The following is a list of materials that will be provided to the Contractor by Century Link, Comcast and Zayo that are to be installed by the Contractor: 1. CenturyLink: Vaults (1730HH, 264-TA) 2. CenturyLink: Conduit (4" Diameter Schedule 40 PVC Conduit) 3. Comcast: Vaults (444-LA) 4. Comcast: Conduit (4" Diameter Schedule 40 PVC Conduit) 5. Zayo: Vaults (444-LA) 6. Zayo: Conduit (4" Diameter Schedule 40 PVC Conduit) Other than the CenturyLink, Comcast and Zayo materials described in this section, the Contractor supplies all other materials for Joint Utility Trench installations. Century Link, Comcast and ZAYO have been granted a work window during the suspension period to allow them to install and activate their new system and wreck out their abandoned system. The Contractor shall coordinate with each service provider to incorporate this work into the Contractors critical path baseline and three week look ahead schedules. 8-32.2 Materials Marker Tape Polyethylene, 5 Mil Tape, 1/2 mil Aluminum Center Core Telecommunication --Six inch (6") wide, orange in color, with non-ferrous metal conductor sandwiched in the tape for detection purposes imprinted with black lettering "CAUTION - COMMUNICATION LINE BELOW". Joint Trench Pipe Zone Bedding 9-03.12(3) Gravel Backfill for Pipe Zone Bedding Select Trench Backfill 9-03.9(3) (Crushed Surfacing) Trench Backfill 9-03.19 (Bank Run Gravel for Trench Backfill) 9-03.14(1) (Gravel Borrow) 8-32.3 Construction Requirements 8-32.3(1) Excavating and Backfilling Excavations shall conform to the requirements of Section 2-09 Structure Excavation. The contractor shall anticipate excavating up to 10 feet deep when crossing existing utilities such that minimum clearances can be achieved. The contractor shall anticipate up to 20 cubic yards of additional excavation at each of the vaults to accommodate conduit sweeps. These crossings of existing utilities and making room for the conduit sweeps are exceptions to the minimum neat line measurements for width and depth. At these aforementioned areas of exception, actual measurements at the utility crossings and sweeps for excavation and shoring payments shall be made. All other area of Structure Excavation and Shoring shall be measured and paid as neat line. The excavations required for the installation of conduit, vaults, and other appurtenances shall be performed in a manner to cause the least possible disturbance to the streets, sidewalks, and other improvements. The trenches shall not be excavated wider and/or deeper than necessary for the proper installation of the conduit, vaults, handholes, and other necessary appurtenances. Excavation shall not be performed until immediately before installation of conduit and other appurtenances. The material from the excavation shall be placed where the least interference to vehicular and pedestrian traffic, and to surface drainage, will occur. The Contractor shall not excavate adjacent to existing water lines until they CITY OF TUKWILA, WA SP- 35 have consulted the City regarding acceptable lengths of open joint trench next to live water lines. The Contractor shall not disturb any thrust blocks for watermains or earth supporting the thrust blocks. Locations of conduit ducts and vaults shown in the plans are approximate. The Engineer, utility company representatives, and the Contractor will coordinate actual location of vaults, handholes and conduits as necessary to avoid conflicts with the existing and proposed utilities and appurtenances. The Contracting Agency reserves the right to adjust these locations as necessary to accommodate existing or newly installed utilities at no additional cost to the Contracting Agency. The Contractor shall place detection tape as required by each respective utility. CenturyLink, Comcast and Zayo crews will perform the majority of the cut over from aerial to underground during the suspension period. The Contractor is to include this cut over activity on their baseline and three week look ahead schedules. The Contractor shall anticipate some utility activates within the project limits and outside of the suspension period. The Contractor shall coordinate these activities with the utilities and incorporate into their three week look ahead and baseline schedules. 8-32.3(3) Conduit Installation of conduit shall conform to appropriate articles of the NEC and these Specifications. The size of conduit used shall be as shown in the Plans. The ends of all conduits shall be well reamed to remove burrs and rough edges. Field cuts shall be made square and true. Conduit stubs from bases shall extend at least 6 inches from the vertical face of foundations and at least 18 inches below grade. All conduit stubs shall be capped. Nonmetallic conduit bends, where allowed, shall conform to Article 347-13 of the NEC. Conduit shall be laid to the depth required by each respective utility company standard but not less than 36 inches below finish grade. Where new construction occurs, conduit shall be placed prior to placement of base course pavement. Conduit terminating in foundations shall extend a maximum of 2 inches above the foundation vertically. Suitable marker stakes shall be set at the ends of conduits which are buried so !:hat they can be easily located. All conduits installed shall be prepared as follows: After final assembly in place, the conduit shall be blown clean with compressed air. Then, in the presence of the Engineer, a sizing mandrel correctly sized for each size of conduit shall be pulled through to ensure that the conduit has not been deformed. As soon as the mandrel has been pulled through, both ends of the conduit shall be sealed with conduit caps. Existing conduit in place scheduled to receive new conductors shall have any existing conductors removed and a sizing mandrel sized for the conduit shall be pulled through. 8-32.3(4) Vaults, Handholes, Pedestals and Appurtenances Vaults, handholes, pedestals and other appurtenances shall be installed at the locations shown in the Plans and Appendix E. Vault installation shall conform to the respective utility company's standards. Vaults shall be adjusted to be flush with the finished grade. CITY OF TUKWILA, WA SP- 36 8-32.3(5) Core DriIII of Existing Vault Where Drawings call for core drilling an existing vault, a five day notification of vault owner is required. Refer to plans for vault locations and the number of conduit entering vaults. The existing vaults are as follows; Vault Number Vault Owner EX CL 1-4 Century Link EX CL 2-3 Century Link EX CL 3-1 Century Link EX CL 3-2 Century Link 8-33 Seattle City Light Electrical Duct Bank NEW SECTION 8-33.1 Description The Seattle City Light (SCL) Electrical Duct Bank work consists of excavation, shoring, installation of conduit, vaults, pole risers, and backfill for the relocation of SCL facilities from overhead poles to new underground conducts, handholes and vaults. In addition to the joint trench details shown in the Contract Plans, the Contractor shall follow the requirements of these special provisions and SCL Construction and Material Standards. Below and included in the appendix is a list of SCL Construction and Material Standards. Items in the list below cross reference between construction and material standards of SCL. The City does not guarantee that all these cross references are contained in the list and appendix; the Contactor is responsible to secure any missing referenced standard via Seattle City Light's website. Seattle City Light Construction and Material Standards • U9-5 Connections 577 Vault Transformer and Junction Box Installation, Grounding and • 0214.00 Clearance between SCL Underground Structures and Other Utility Structures in the Public Right -of -Way • 0222.02 Requirements for Duct Banks in the Public Right -of -Way • 0224.05 Requirements for Underground Services on Private Property • 0226.06 Installation of Fluidized Thermal Backfill • 0226.11 Backfill Operations, General Requirements • 0232.05 Underground Residential Equipment Location of 577 Vaults and Secondary Handholes • 0461.10 Grounding Electrodes for Handholes and Vaults • 6103.90 250KCMIL copper wire for vault grounding • 7150.00 Fluidized Thermal Backfill • 7015.05 Schedule 40 PVC Conduit and Fittings • 7025.05 Fiberglass Conduit and Fittings, Standard -Wall, Five Inch IPS CITY OF TUKWILA, WA SP- 37 • 7050.05 Zinc -Coated Steel Conduit and Fittings • 7346.8 Spacers, Plastic — Nonmetallic Conduit • 7203.08 233 Handholes • 7203.10 Precast Reinforced Concrete Handholes — General • 7203.21 Precast Reinforced Concrete Structures, General • 7203.26 444 Electric Vault • 7203.36 507 Electric Vault • 7203.41 577 Electric Vault • 7203.46 712 Electric Vault • 7204.15 Cover Slabs and Risers for Electrical Vaults • 7204.70 Frames and Covers, 42-Inch Round, Iron • 7346.8 Spacers, Plastic — Non -Metallic Conduit • U2-11.3/NDK-30 Termination of Existing Duct Banks in New Vaults or Manholes • U2-11.40/NDK-40 Mandreling and Cleaning of Ducts and Conduits • U2-14.2 Typical Vault or Handhole Installation (5ft x7 ft x7 ft and smaller) • U7-10/NDK-70 Conduit Risers on Poles • U7-10.2/NDK-90 Primary Conduit Riser Pole Base Detail • U10-5.2 Pad construction for Pad -mounted Switchgear 8-33.1(1) Work by Contractor The Contractor's work shall include the following: 1. Sawcutting pavement (HMA and/or Concrete) as necessary according to the joint trench alignment. 2. Excavating and shoring the joint trenches. 3. Furnishing and installing conduit (PVC Schedule 40, Fiberglass and Rigid Steel), conduit elbows, conduit adapters, ground conductor, tracer wire, conduit spacers, base spacer, pole riser brackets, pole riser conduit, pads and vaults 4. Grounding of all electrical vaults and handholes 5. Placing High Strength Fluidized Thermal Backfill (HSFTB) 6. Placing Low Strength Fluidized Thermal Backfill (LSFTB) CITY OF TUKWILA_ WA SP- 38 7. Furnishing and installing marker tape 8. Connecting conduits to existing vaults, including all elbows and fittings 9. Cutting and capping conduit where shown in the plans 10. Cleaning all conduits, proofing the conduits with a mandrel, and installing mule tape to pull utility conductors 11. Other work indicated on the Plans and these Special Provisions including the Seattle City Light Construction Standards in the appendix and listed in this special provision Upon completion of the SEATTLE CITY LIGHT ELECTRICAL DUCT BANK, the Contractor shall submit a statement that thew work is substantially complete and requests concurrence and/or punch list from the City. 8-33.1(2) Work by Seattle City Light Seattle City Light be responsible for furnishing and installing cables, conductors and electrical equipment as well as the removal of the poles once they are no longer needed. Seattle City Light has been granted a work window during the suspension period to allow them to install and activate their new system and wreck out their abandoned system. The Contractor shall coordinate with SCL to incorporate SCL's installation and activations into the Contractors critical path baseline and three week look ahead schedules. 8-33.2 Material Marker Tape Polyethylene, 5 Mil Tape, 1/2 mil Aluminum Center Core Telecommunication --Six inch (6") wide, orange in color, with non-ferrous metal conductor sandwiched in the tape for detection purposes imprinted with black lettering "CAUTION - COMMUNICATION LINE BELOW'. High Strength Fluidized Thermal Backfill (HSFTB) SCL 7150.00 Low Strength Fluidized Thermal Backfill (LSFTB) SCL 7150.00 Conduit Pipe 5 In. Diam. a. Straight Conduit Fiberglass SCL 7025.05 b. Horizontal Bends: Fiberglass, min 12-ft radius SCL 7025.05 c. Pole riser Bends/Conduit on pole: Fiberglass, min 5-ft radius SCL 7025.05 Conduit Pipe 4 In. Diam. SCL 7015.05 a. Straight Conduit. PVC Schedule 40 b. Horizontal Bends" Fiberglass, 12-ft radius, or Steel, 4-ft radius SCL 7024.05 (Fiberglass) or 7050.05 (Steel) c. Pole riser Bends/Conduit on pole: Steel, 4-ft radius SCL 7050.05 In addition to the material listed above, the Contractor shall review the Contract documents and submit the material required for the Electrical Duct Bank for agency review and approval. CITY OF TUKWILA, WA SP- 39 8-33.3 Construction Requirements 8-33.3(1) Excavating and Backfilling Excavations shall conform to the requirements of WSDOT Standard Specifications Section 2-09 Structure Excavation. The contractor shall anticipate excavating up to 10 feet deep when crossing existing utilities such that minimum clearances can be achieved. The contractor shall anticipate up to 20 cubic yards of additional excavation at each of the vaults to accommodate conduit sweeps. These crossings of existing utilities and making room for the conduit sweeps are exceptions to the minimum neat line measurements for width and depth. At these aforementioned areas of exception, actual measurements at the utility crossings and sweeps for excavation and shoring payments shall be made. All other area of Structure Excavation and Shoring shall be measured and paid as neat line. The excavations required for the installation of conduit, vaults, and other appurtenances shall be performed in a manner to cause the least possible disturbance to the streets, sidewalks, and other improvements. The trenches shall not be excavated wider and/or deeper than necessary for the proper installation of the conduit, vaults, handholes, and other necessary appurtenances. Excavation shall not be performed until immediately before installation of conduit and other appurtenances. The material from the excavation shall be placed where the least interference to vehicular and pedestrian traffic, and to surface drainage, will occur. The Contractor shall not excavate adjacent to existing water lines until they have consulted the City regarding acceptable lengths of open joint trench next to live water lines. The Contractor shall not disturb any thrust blocks for watermains or earth supporting the thrust blocks. Locations of conduit ducts and vaults shown in the plans are approximate. The Engineer, Seattle City Light company representative, and the Contractor will coordinate actual location of vaults and conduits as necessary to avoid conflicts with the existing and proposed utilities and appurtenances. The Contracting Agency reserves the right to adjust these locations as necessary to accommodate existing or newly installed utilities at no additional cost to the Contracting Agency. 8-33.3(2) Conduit Risers Conduit Risers shall be constructed per SCL Construction Guidelines. Conduit risers shall be the size indicated on the Drawings. The 90-degree bend and conduit up the pole to 10 feet above the surface shall be rigid steel. Conduit above the 10-foot level shall be installed by SCL or the Communication Utilities in accordance with SCL requirements. See SCL U7-10 and U7-10.2 for pole riser requirements. 8-33.3(3) Core Drill of Existing Vault Where Drawings call for core drilling an existing vault, a five day notification of vault owner is required. Refer to plans for vault locations and the number of conduit entering vaults. The existing vaults are as follows; Vault Number EX SCL 3-3 EX SCL 3-5 EX SCL 4-4 EX SCL 4-5 Vault Owner Seattle City Light Seattle City Light Seattle City Light Seattle City Light 8-33.3(4) Electrode for Vault and Handhole Grounding The Contractor shall ground all electrical Vaults (444, 507, 577 and 712) and Handhole (233). For vaults 507, 577 and 712, the ground shall consist of 250KCMIL copper wire (SCL 6103.90) laid on the conduit CITY OF TUKWILA, WA SP- 40 spacers between the bottom two conduits in the duct bank to form a concrete -encased electrode. See SCL 0461.10 for further details. Install a length 250KCMIL copper wire electrode cable from each trench into each vault. This length of wire shall be twice the length of the vault plus the width of the vault. All grounding shall be in accordance with the Seattle City Light Construction and Material Standards. 8-34 Private Service Joint Utility Trench NEW SECTION 8-34.1 Description The plans show details and a Private Services Schedule for service connections. The Contractor shall perform the Private Service Joint Utility Trench work which will involve excavation, shoring, installation of conduit, connecting conduits to vaults in the right of way, placement of bedding and backfill and property restoration for the relocation of CenturyLink, Comcast and Seattle City Light facilities from public right-of- way to private termini. In addition to the joint trench details shown in the Contract Plans, for the Seattle City Light Components, the Contractor shall follow the requirements of these special provisions and the list of Seattle City Light Construction and Material Standards shown in section 8-33.1. 8-34.1(1) Work by Contractor The Contractor's work shall include the following: 1. Coordination and scheduling of installation with each property owner and Franchise Utility 2. Sawcutting pavement (HMA and/or Concrete) as necessary according to the joint trench alignment on private property. 3. Excavating and shoring the joint trenches. 4. Installing conduit, conduit bends, connections, termini riser brackets and pole riser conduit from below to above ground. 5. Furnishing, placing, and compacting joint trench pipe zone bedding. 6. Placing and compacting imported trench backfill material 7. Furnishing and installing marker tape. 8. Connecting conduits to existing and/or new vaults, including all bends and fittings. 9. Cutting and capping conduit. 10. Cleaning all conduits, proofing the conduits with a mandrel, and installing mule tape to pull utility conductors. 11. Other work indicated on the Plans and in the Specifications and Special Provisions. 12. Property restoration 8-34.1(2) Work by CENTURYLINK, COMCAST and Seattle City Light Century Link, Comcast and Seattle City Light will be responsible for furnishing and installing cables, conductors, electrical equipment, and for the removal of poles, and other Century Link, Comcast and Seattle City Light equipment that is no longer needed. CITY OF TUKWILA, WA SP- 41 The following is a list of materials that will be provided to the Contractor by CenturyLink and Comcast that are to be installed by the Contractor: CenturyLink: Conduit (2" Diameter Schedule 40 PVC Conduit) Comcast: Conduit (2" Diameter Schedule 40 PVC Conduit) Other than the CenturyLink, Comcast and Seattle City Light materials described in this section, the Contractor supplies all other materials for Private Service installations. 8-34.2 Materials Marker Tape Polyethylene, 5 Mil Tape, 1/2 mil Aluminum Center Core Telecommunication ---Six inch (6") wide, orange in color, with non-ferrous metal conductor sandwiched in the tape for detection purposes imprinted with black lettering "CAUTION - COMMUNICATION LINE BELOW". Joint Trench Pipe Zone Bedding 9-03.12(3) Gravel Backfill for Pipe Zone Bedding Trench Backfill 9-03.19 (Bank Run Gravel for Trench Backfill) 9-03.14(1) (Gravel Borrow) Seattle City Light Conduit Pipe 3 In. Diam a. Straight Conduit: PVC Schedule 40 SCL 7015.05 b. Horizontal Bends: Steel, 3-ft radius SCL 7050.05 c. Pole riser Bends/Conduit on pole: Steel, 3-ft radius SCL 7050.05 For other Seattle City Light material requirements, see the list of Seattle City Light Construction and Material Standards shown in section 8-33.1. 8-34.3 Construction Requirements 8-34.3(1) Private Service Joint Utility Trench (JUT) Placement and Property Restoration The Contractor shall support the Franchise Utilities by trenching, installing conduit, backfill and compaction for each private service as shown in the plans. This section contains lump sum payments for private services by address. These lump sum items compensate for work below surface features. Surface features are considered lawn, bark, topsoil, fence, asphalt or concrete driveway and asphalt of concrete walkways. Surface features will be restored by the Engineer's direction under "Property Restoration for Private Services". 8-35 FRANCHISE UTILITY COORDINATION New section 8-35 is added: (******) Franchise Work is detailed in several places within these special provisions to include utilities working within the project limits to perform relocations affiliated with the JOINT UTILITY TRENCH FOR COMMUNICATIONS, SEATTLE CITY LIGHT ELECTRICAL DUCT BANK, utility adjustments and maintenance. CITY OF TUKWILA, WA SP- 42 The Contractor shall be responsible for coordination and scheduling of their work with the Franchise Utility work within the project limits including private service connections. Coordination will include integrating Franchise Utility work with and around the Contractor's activities. Franchise work could include adjustments to grade, utility cut overs between areal and underground relocations, relocations to avoid conflicts with contract work and pole removals. The Contractor will be an active participant in the weekly coordination meetings regarding Franchise Utility work and include utility activities in the Contractor's two and three week look ahead schedules. The Contractor shall anticipate some of the pole removals to be last order of utility relocations. As such, the Contractor may need to place block outs in some of their work until which time the Franchise Utilities remove the poles and the Contractor can then finish their work. Other Contractor responsibilities, specific to Sections 8-32, 33 and 34 of these special provisions, include the Contractor providing a secure staging area, within or near the project limits, for CenturyLink, Comcast and Zayo provided material. The Contractor will coordinate and schedule CenturyLink, Comcast and Zayo provided material deliveries. CenturyLink, Comcast and Zayo provided material includes them delivering to the staging area. The Contractor shall provide all labor and equipment to off load said material. Once off-loaded, the materials become the Contractor's responsibility. Any material damaged or stolen shall be the Contractor's responsibility to replace. The Contractor shall coordinate with CenturyLink, Comcast, Zayo and Seattle City Light regarding the orientation of the conduits coming out of the ground and up the riser poles regarding position of the risers relative to traffic as well as the orientation of the Franchise Conduits on the riser bracket. As a pro -active measure, the Engineer may direct the Contractor to pothole ahead of underground installations. Through the coordination with Franchise Utilities, the Engineer may determine that directing the Contractor to take steps towards the resolution of utility conflicts is necessary. The plans show an "Over Excavation Under Duct Bank" detail. If unsuitable is encountered, the Engineer will determine whether or not to use said detail under the Resolution of Utility Conflicts item. 8-37 SETTLEMENT MONITORING OF EXISTING ROCKERY WALL New section 8-37 is added: (******) 8-37.1 Description This work consists of monitoring vertical deflections of the existing rockery wall for the construction of the new culvert as shown in the Plans. 8-37.3 Construction Requirements Settlement Monitoring The Contractor shall perform settlement monitoring of the existing rockery wall to ensure that movements due to new construction are within allowable tolerances and that damage to the existing structures does not occur from excessive movements. Settlement monitoring points shall be established at locations as specified that provide reference points for monitoring movement and to establish a baseline record of such movement. CITY OF TUKWILA, WA SP- 43 Measurements of settlement will provide the basis for the implementation of remedial measures. Remedial measures, if necessary, include modifications to construction procedures or methods as deemed acceptable to the Engineer. Minimum surveyor experience shall consist of: 1. Survey installation and monitoring experience on similar construction projects. 2. A registered Land Surveyor in the State of Washington. Benchmark: Establish a benchmark a minimum of 200 feet from the work area. Tolerances: 1. Establish the initial locations (x,y,z) of monitoring points to within 1/8 inch accuracy. 2. Measure and record the subsequent locations of monitoring points at established intervals to within ±1/8 inch accuracy. The Contractor shall perform monitoring using optical or laser surveying methods and report survey data using the project datum indicated in the Contract Plans. Settlement Monitoring Points A minimum of 6 monitoring points shall be established at the top of the wall located within the vicinity of the new culvert and equally spaced along the wall. Monitoring points shall consist of bonded survey targets attached to the top of the wall. Deformation monitoring readings shall consist the following: The Contractor shall establish benchmarks, install settlement monitoring points, and make initial baseline readings once excavation near the existing rockery wall has begun. The Contractor shall routinely measure monitoring points during excavation occurring within 50 feet of the existing rockery wall as directed by the Engineer. As a minimum, monitoring points shall be measured at the following intervals: 1. At least daily while construction activity within 50 feet of the monitoring points is occurring or if measured deformations exceed 1/4 inch. 2. At least once for each 2 feet of excavation while construction activity within 50 feet of the monitoring points is occurring. 3. At least weekly for a period of 2 months after excavation is complete and before the new culvert has been backfilled to the finished height. More frequent readings may be required at critical times during construction if significant movement is indicated or as directed by the Engineer. The Contractor shall submit data from movement readings of all points within 8 hours after readings are taken. 8-37.3(1) Submittals Qualifications of the individual(s), as outlined in Section 6-19.1(1), responsible for the installation and monitoring of the monitoring points. CITY OF TUKWILA, WA SP- 44 Plan and Documentation: 1. Monitoring plan containing the information called for in this Section clearly outlining when the required information will be submitted. 2. Schedule and description of procedures to be used for monitoring point installation and performance of monitoring. 3. Detailed drawing of monitoring point locations. CITY OF TUKWILA, WA SP- 45 DIVISION 9 - MATERIALS 9-14 EROSION CONTROL AND ROADSIDE PLANTING 9-14.1 Topsoil 9-14.1(1) Topsoil Type A Section 9-14.1(1) is supplemented with the following: (August 3, 2015) Topsoil Type A shall meet the following requirements: 1. Cation exchange capacity (CEC) of Topsoil Type A shall be a minimum of 5 milliequivalents CEC/100 g dry soil (U.S. EPA Method 9081). 2. Organic content greater than 8-percent but less than 15-percent as measured on a dry weight basis using AASHTO T 267 Determination of Organic Content in Soils by Loss on Ignition. Topsoil Type A shall be 60-percent to 70-percent Loam and 40-percent to 30-percent Compost by volume. Loam shall be as defined by the US Department of Agriculture Soil Survey Manual - and documented with a Particle Size Analysis from a laboratory that is accredited to perform AASHTO T 88 "Particle Size Analysis of Soils. 9-14.2 Seed Section 9-14.2 is supplemented with the following: Native Grass Seed Mix A The grass seed dealer shall mix the native grass seed only. The Contractor shall furnish the Engineer with a dealer's guaranteed statement of the composition, mixture, and the percentage of purity and germination of each variety. Hydroseed shall be composed of the following varieties mixed in the proportions indicated, or approved equal. Native Grass Seed Mix shall be applied at a rate of 1.5 Ibs / 1000 SF or 65 Ibs/acre Name By Weight % Purity % Germination Festuca rubra rubra/ Native Red Fescue 50% 98% 90% Bromus carninatus/ California Brome 20% 98% 90% Elymus glaucus/ Blue Wildrye 20% 98% 90% Lupinus rivularis/ Streambank Lupine 10% 98% 90% Seed/Sod Mix B The grass seed dealer shall mix the grass seed only. The Contractor shall furnish the Engineer with a dealer's guaranteed statement of the composition, mixture, and the percentage of purity and germination CITY OF TUKWILA, WA SP- 46 of each variety. Hydroseed shall be composed of the following varieties mixed in the proportions indicated, or approved equal. Seed/Sod Mix shall be applied at a rate of 5 Ibs / 1000 SF or 220 Ibs/acre Name By Weight % Purity % Germination Festuca rubra / Chewings Fescue 20% 98% 90% Festuca rubra /Creeping Red Fescue 20% 98% 90% Lolium perenne / Perennial Ryegrass 60% 98% 90% Source Identified seed shall be generation four or Tess. Non -Source Identified seed shall meet or exceed Washington State Department of Agriculture Certified Seed Standards and be from within the appropriate genetic zones of the Central Puget Lowlands (2f) Ecoregion(s) as defined by the US Environmental Protection Agency (EPA). The seed certification class shall be Certified (blue tag) in accordance with WAC 16-302 and meet the following requirements: Prohibited Weed Noxious Weed Other Weed Other Crop 0% max. 0% max. 0.20% max. 0.40% max. The Contractor shall document all Source Identified seed by providing the Association of Official Seed Certifying Agents (AOSCA) yellow seed label for each species in the mix. Site Identification Logs can be supplied for collections where the AOSCA yellow label is not available. 9-14.3 Fertilizer Section 9-14.3 is replaced with the following: Fertilizer shall be a minimum of 50% organic matter in a pelleted or granular form with the following Guaranteed Chemical Analysis (N-P-K) (%): N: 5 to 7 P: 1 to 4 K: 1 to 4 Water insoluble N shall be a minimum of 85%. Organic Fertilizer shall have a minimum carbon to nitrogen (C:N) ratio of 4:1. Heavy Metals content shall not exceed the limits provided in Table 1 of Section 9-14.4(2). Fertilizer shall be supplied in one of the following forms: 1. A dry free -flowing granular form or homogenous pellet suitable for application by a hydroseeder or ferti-blast gun. 2. A soluble form that will permit complete suspension of insoluble particles in water, suitable for application by power sprayer or hydroseeder. CITY OF TUKWILA, WA SP- 47 Fertilizer shall be furnished in a standard unopened container with weight, name of plant nutrients, and manufacturer's guaranteed statement of analysis clearly marked. The fertilizer formulation and application rate shall be approved by the Engineer before use. 9-29 ILLUMINATION, SIGNAL, AND ELECTRICAL ) Add the following section: 9-29.10(3) LED Roadway Luminaires Section 9-29.10 (3) is replaced with the following: The luminaire shall have the specs listed below and be Leotek Green Cobra GC1 with 60F LED, or approved equal. Roadway Luminaires shall be IES Type III medium distribution cutoff, with Light Emitting Diodes Hi-flux/Hi- power white with a minimum of 95% of initial intensity and rated at 100,000 hours minimum. Each housing shall be provided with a four -bolt slip fitter capable of mounting on a 2-inch pipe tenon and capable of being adjusted within 5 degrees from the axis of the tenon. The clamping bracket(s) and the cap screws of the slip fitter shall not bottom out on the housing bosses when adjusted within the ±5- degree range. Housing shall be fabricated from aluminum. Painted housings shall be painted flat gray, Federal Standard 595 chip no. 26280. Housings that are painted shall withstand a 1,000-hour salt spray test as specified in ASTM B 117. Luminaires shall be LED with a current drive set at 350mA, the luminaire shall have a color temperature of 4000K and be natural white with a delivered lumens of 7600, and a system wattage of 70 watts. Electrical components shall be accessed without tools and mounted on removable power door. The Power door shall have a quick disconnect to the terminal block and LED board. All luminaires to be mounted on horizontal mast arm shall be capable of withstanding cyclic loading that meet 3G vibration per ANSI C136 CITY OF TUKWILA, WA SCHEDULE D TECHNICAL PROVISIONS INTRODUCTION These Technical Provisions cover the furnishing of materials, labor and equipment for the installation and construction of the 42"d Ave South Gravity Sewer for the Valley View Sewer District, and shall also cover materials, workmanship, and testing. The following Technical Provisions shall be used in conjunction with the applicable sections of the 2014 Standard Specifications for Road, Bridge and Municipal Construction, as prepared by the Washington State Department of Transportation and the Washington State Chapter of the American Public Works Association (hereinafter referred to as the "Standard Specifications") except as may be amended, modified, or revised herein. Division 1 of the "Standard Specifications" relating to the General Conditions are hereby deleted. All sections related to measurement and payment in the Standard Specifications are deleted and are replaced with the Measurement and Payment section in the Supplemental Provisions. The Standard Specifications, except as they may be modified or superseded by these provisions and the Supplemental Provisions, shall govern all phases of work under this contract, and they are by reference made an integral part of these specifications and contract as if herein fully set forth. Reference Specifications Certain referenced sections to the following publications are used in this specification and in the Standard Specifications and are from the latest edition of: AWWA American Water Works Association ANSI American National Standards Institute ASA American Standards Association ASTM American Society for Testing and Materials Headings Heading to parts, sections, forms, articles and sub -articles are inserted for convenience or reference only and shall not affect the interpretation of the contract documents. Technical Provision Structure The specifications noted herein are in addition to, or as a replacement for, the Standard Specifications. Where sections are marked "Replacement Section" or "Partial Replacement Section," the specifications herein are to replace, or partially replace, the Standard Specifications noted. Where sections are marked "Additional Section," the specifications herein will be an addition to the Standard Specifications noted. Where sections are marked "Supplemental Section," the specifications herein are to be a supplement to the Standard Specifications. Division 1 SURFACE TREATMENT AND PAVEMENTS 1-06 CONTROL OF MATERIAL 1-06.6 Required Submittals (Additional Section) The list of submittals required by this section shall supplement submittals required by other sections of the Standard Specifications or these Technical Specifications. The contractor shall provide submittals to the Owner for the following: • Traffic Control Plans • Pre -cast concrete structures, including submittals from the pre -caster, stamped by a Professional Engineer, verifying that the structural strength of the manholes is adequate for the loadings encountered on 42' Avenue South. • Castings and miscellaneous metals • Ladder inserts and miscellaneous appurtenances • Sewer pipe and fittings • Sewer pipe couplings • Schedule of Values for LS bid items • Temporary Erosion Control and Sedimentation Control (TESC) Plan • Dewatering water treatment plan • Asphalt mix design • Gradation tables for imported backfill, crushed surfacing, foundation material, and any other imported gravel, soils, or rock • Non -shrink grout, including admixtures • Wastewater bypass plans • Ratchet tie -downs for Gilliam Creek bypass • Pipeline inspection videos on DVD (Post Proposed Pipe Installation) • Record drawing information 1-07.15 Temporary Water Pollution/Erosion Control (Supplemental Section) The Contractor is responsible for treating dewatering water and other site runoff before discharge to the storm sewer. Discharged water shall not have turbidity in excess of 5 NTUs above background. The Contractor shall submit his plan for treating dewatering water and other site runoff for turbidity and pH to the Engineer for approval. Division 5 SURFACE TREATMENT AND PAVEMENTS 5-04 ASPHALT CONCRETE PAVEMENT 5-04.3(5)A Preparation of Existing Surfaces (Supplemental Section) All edges of existing asphalt concrete pavement shall be saw cut or jack hammered full depth. The cut shall be a minimum of 12 inches beyond the edge of the trench. 5-04.3(22) Pavement Patching (Additional Section) When constructing within existing paved areas the contractor shall patch the existing paved areas in accordance with the Construction Plans. Asphalt concrete paving, Class 1" PG 64-22 as defined in Section 9-02.1 and Section 9-03.8 of the Standard Specifications shall be placed in a maximum of 2-inch compacted lifts. The asphalt concrete patch shall be rolled to a smooth riding surface, flush with the surface of the existing asphalt Immediately thereafter, all joints between the new and original asphalt shall be painted with hot asphalt emulsion and be covered with dry paving sand before the asphalt solidifies. At the end of each working day a temporary patch shall be placed over unfinished portions of work that affect traffic in any way. Material for these temporary patches shall be cold asphalt mix. Division 7 DRAINAGE STRUCTURES, STORM SEWERS, SANITARY SEWERS, WATER MAINS, AND CONDUITS 7-06 TEMPORARY WASTEWATER BYPASSES (ADDITIONAL SECTION) 7-06.1 Gilliam Creek Temporary Wastewater Bypass (Additional Section) The Gilliam Creek Temporary Wastewater Bypass, between SSMH E17-49 and SSMH E17-52, shall be installed to flow by gravity. The contractor shall provide 12-inch-diameter, SDR 17 HDPE pipe for the wastewater bypass. The pipe shall be suspended, per the Plans, from the utility bridge constructed by PSE's contractor using 2-inch wide double J-hook ratchet tie downs, spaced 8 feet maximum on center, equal to Smartstraps with minimum 1,500 lb. working load. The Contractor shall fabricate and install any HDPE bends or other fittings necessary to route the bypass piping from the existing sanitary sewer alignment to and from utility bridge. Existing SSMH E17-49 and SSMH E17-52 shall be core -drilled to accept the temporary bypass pumping pipe, which shall be grouted into place, matching the upstream and downstream inverts of the existing sanitary sewer pipe. The bypass pipe shall be adjusted to a constant slope using the ratchet tie downs and any other necessary supports. The bypass piping shall not rise above the upstream invert or sag below the downstream invert at any point. 7-06.2 Other Temporary Wastewater Bypasses (Additional Section) At least two temporary bypass pumps shall be provided and operated by the Contractor for each bypass, with the exception of the Gilliam Creek culvert bypass, which will flow by gravity as shown in the Plans and detailed in Section 7-06.1. Each pump shall be capable of handling the peak flow of the sewer main (see construction plans for estimated quantity) with at least one bypass pump used for redundancy in the event that the other bypass pump fails. The Contractor shall provide all labor, piping, plugs, and other appurtenances necessary to achieve a reliable temporary wastewater bypass. Temporary bypass piping and fittings shall be installed in sizes adequate to handle the capacity of the temporary bypass pumps. The Contractor shall provide temporary pipe protection where bypass lines cross roads and restore these areas back to original or better condition once the temporary bypass lines are removed. The Contractor shall submit a detailed bypass plan to the Owner for each temporary wastewater bypass, which shall be approved by the Owner prior to the start of construction. 7-08 GENERAL PIPE INSTALLATION REQUIREMENTS 7-08.3(1) Excavation and Preparation of Trench 7-08.3(1)A Sewer Trench (Supplemental Section) Prior to excavation through asphalt concrete, or Portland cement concrete surfaces, the pavement shall be removed to a minimum of 24 inches greater than the top width of the trench. The pavement shall be sawcut in a neat, straight line paralleling the trench centerline prior to removal. The Portland cement concrete pavement shall be cut to half the depth of the pavement. Prior to trenching through areas improved with lawn or through fences, rockeries, shrubs, plants, or other improvements, these improvements shall be removed, stored and protected unless otherwise noted. After the sewer installation is complete, the improved area shall be returned to a condition equal or better than the area before the sewer installation. If any stored improvements are not suitable for reuse after construction, they shall be replaced with an improvement of equal or better quality. The contractor shall provide all materials, labor and equipment necessary to adequately shore trenches to protect the work, existing property, utilities, pavement and any other improvements and to provide safe working conditions in the trench. The contractor may use any method of shoring, provided that the method complies with all local, state and federal safety codes. The contractor alone shall be responsible for worker safety, and the owner and its agents assume no responsibility. Damages resulting from improper shoring or failure to shore shall be the sole responsibility of the contractor. Shoring below the pipe will not be removed if, in the opinion of the Engineer, such removal will disturb the pipe bed. The contractor shall furnish, install and operate all necessary machinery, appliances and equipment to keep excavations free from water during construction. Drainage and culvert replacement: where disturbed, drainage ditches and culverts shall be restored to their original alignment and grade, backfilled with select backfill as shown on the plans, and left in a condition to provide drainage equal to or better than now existing as determined by the engineer. Existing vegetated channels shall be revegetated using hydroseed or other methods of stabilization if approved by the Engineer if disturbed by construction. 7-08.3(1)D Pipe Foundation (Additional Section) Pipe Foundation in Poor Soil When soft or unstable material is encountered at the subgrade which, in the opinion of the Engineer, will not uniformly support the pipe, such material shall be excavated to an additional depth as required by the engineer and backfilled with 11-inch washed rock to a depth of 12 inches and 4- to 6-inch quarry spalls to the excavated depth. The foundation material shall be placed in 12-inch lifts and compacted to provide an unyielding foundation. All washed rock will be considered incidental to the project. Correcting Faulty Grade Excess excavation below the required grade shall be backfilled with foundation material and thoroughly compacted to the required grade line. Such excavation below the required grade and the required backfill shall not entitle the contractor to extra compensation. 7-08.3(2) Laying Sewer Pipe 7-08.3(2)B Pipe Laying - General (Partial Replacement Section) Delete Paragraph 3 and insert the following: Variance from established line and grade shall not be greater than 1/32-inch per inch of pipe diameter and not to exceed 1/2-inch, provided that such variation does not result in a level or reverse sloping invert; provided also, that variation in the invert elevation between adjoining ends of pipe, due to non -concentricity of joining surface and pipe interior surfaces, does not exceed 1/64-inch per inch of pipe diameter, or 1/2-inch maximum. 7-08.3(2)H Sewer Line Connections (Supplemental Section) Sewer line connections to trunks, mains, laterals, or side sewers shall be left uncovered until after an acceptance inspection has been made. After approval of the connection, the trench shall be backfilled as specified in section 7-08.3(3) of the Standard Specifications, after first covering the bare pipe with select material compacted to a depth above the crown of the pipe as specified in the Plans. 7-08.3(3) Backfilling (Partial Replacement and Supplemental Section) Remove the fourth paragraph and replace with: Backfill above the pipe zone shall be accomplished in such a manner that the pipe will not be shifted out of position nor damaged by impact or overloading. Backfill shall be compacted to at least 90 percent maximum density in trenches in unpaved areas, and to at least 95 percent maximum density in trenches in paved areas as specified in the Modified Proctor Test except where a higher standard is required by the agency which has jurisdiction or when otherwise specified on the Plans. Supplement 7-08.3(3) with: After backfilling and placement of the base course, the contractor shall immediately place cold patch over all trenches in paved areas until such time that a permanent overlay or patch can be completed. The contractor shall grade all roads and shall maintain them during the period required by the general provisions of this contract in such a manner as to provide safe travel by the public, free of settlement, mud holes, ruts, and high centers. Streets shall be repainted upon completion of construction in conformance with current striping. 7-17 SANITARY SEWERS 7-17.2 Materials (Replacement Section) Gravity sewer pipe shall be PVC sewer pipe or ductile iron pipe as specified herein. The contractor shall provide five copies of the pipe manufacturer's technical literature and tables of dimensional tolerances to the engineer. Any pipe found to have dimensional tolerances in excess of those prescribed or having defects which prevent adequate joint seal or any other damage shall be rejected. If requested by the engineer, not less than three nor more than five lengths of pipe for each size, selected from stock by the engineer, shall be tested as specified for maximum dimensional tolerance of the respective pipe. Pipe and Fittings — Gravity a. PVC shall meet extra strength minimum requirements of ASTM D 3034 SDR 35 or ASTM F 789. Joints for PVC pipe shall conform to ASTM D3212 using restrained gasket conforming to ASTM F 477. Provisions shall be made for construction and expansion of each joint with a rubber ring. The bell shall consist of an integral wall section with a slid cross section rubber ring. Size and dimensions shall be as shown on the drawings. Standard pipe length shall be 12.5' and 20'. Where specified on the plans, PVC shall meet the requirements of AWWA C900 DR 25. Where specified on the plans, ductile iron pipe shall conform to ANSI specification A21.51-1976 (AWWA C151-76) and shall meet the requirements of Thickness Class 52. All ductile iron pipe shall have ceramic epoxy lining equivalent to Protecto 401. b. PVC Pipe Fittings shall be as manufactured and furnished by the pipe supplier and have bell and/or spigot configurations identical to that of the pipe. PVC sewer pipe shall be a "glass smooth" interior finish and a factory -made close tolerance joint. All fittings for use on PVC pipe shall be SDR 26 molded fittings. Fabricated fittings will not be accepted. Where AWWA C900 DR 25 pipe is specified on the plans, fittings shall meet the requirements of AWWA C900. Pipe Caps All caps shall be of the same material as the pipe being capped. The cap shall be capable of withstanding all test pressures without leakage. Plugs may be used for testing, but shall not be part of the permanent installation. For pipes or fittings with "bell" or female couplings, install a capped 2-foot section of pipe. Manhole Joints Concrete to PVC or DI manhole adapters shall be "Kor-N-Seal" boots, or GPK manhole adapters. 7-17.3(2) 7-17.3(2)A Joints and Gaskets Rubber or elastomeric gaskets for gravity sewer pipe shall conform to ASTM D1869. Quarry Spalls Quarry spalls shall be 4- to 6-inch quarry spalls. Foundation Gravel Material Foundation gravel shall be 11/2-inch washed rock. Bedding Gravel Material Flexible Pipe: Bedding gravel shall be 5/8 minus crushed rock, unless otherwise noted in these Plans, Specifications and Contract Documents. Bank Run Gravel Material Bank run gravel for trench backfill shall conform to the requirements of Section 9-03.19 of the Standard Specifications. Pit Run Gravel Material Pit run gravel for trench backfill shall conform to the requirements of Section 9-03.10 of the Standard Specifications. Concrete Blocking Material Concrete used for bedding or blocking shall be Class C (11) Portland cement concrete and shall conform to the requirements of section 9-01 and 6-02.3(1) Of the Standard Specifications. Cleaning and Testing General (Supplemental Section) Testing of all pipe materials may be required prior to installation at option of the engineer. Such tests, if required, shall be conducted in accordance with the reference material specification for the material being used. Testing shall be performed on the new mainline and laterals, simultaneously prior to the new sewer being placed in service. Cleaning and Flushing All gravity sewer pipe shall be cleaned and flushed after side sewer installation and after backfilling and compaction. Any obstruction such as cemented grout or debris found in the completed section shall be removed. Alignment and Grade Alignment and grade will be inspected with an approved video monitoring system (TV inspection). Any section or portion which exceeds the allowance for variance in line or grade shall be re -excavated and re -hid at no additional cost to the owner. Manhole Vacuum Tests All manholes shall be vacuum tested after backfilling, in accordance with ASTM C 1244-62. If leakage is found, contractor shall repair and fill leakage areas with grout as required by the engineer. The Contractor shall provide the manhole rim seal with appropriate fittings to enable a vacuum compressor (also provided by the Contractor) to draw a vacuum of 9 to 10 inches Hg in the manhole. Contractor shall also provide flow -through plugs or other plugs for all manhole pipe penetrations. Manholes 8 feet and less shall lose no more than 1-inch Hg in 20 seconds to be considered acceptable. Five seconds shall be added to the acceptance test interval for each 2 feet of depth over 8 feet. 7-17.3(2)H Video Inspection (Supplemental Section) Prior to the video inspection, the new sewer pipe shall be flushed to remove all debris and water allowed to fill all pipe "bellies." The deviation from pipe grade (depth of pipe "bellies") shall be determined by towing a 1-inch ball ahead of the video camera while the water is stagnant in the pipe "bellies." Video inspection while water is flowing will not be acceptable. The ball shall be fully visible during the video. Video inspections shall be performed after all laterals are installed and prior to placing the new sewer in service. Division 8 MISCELLANEOUS CONSTRUCTION 8-01.3(17) On -Site BMP Materials (Additional Section) The Contractor shall ensure that materials, equipment and labor are available and on -hand to implement effective erosion control and to address unanticipated situations. These materials may or may not be utilized during the course of the project. If used during the course of the work, they shall be replenished by the Contractor at no additional cost to the Owner. 8-02.3(17) Hydroseeding (Additional Section) All disturbed surfaces within the project not otherwise covered by asphalt, gravel, quarry spalls, concrete, or other plant material/landscape items as indicated on Plans shall be hydroseeded, except ditches and swales may have seed applied by hand. Apply seed prior to installing erosion control blankets. The contractor shall apply hydroseed either for temporary stabilization or permanent restoration within the optimum seeding windows whenever possible. Construction practices shall be timed to minimize bare, cleared and excavated areas so that surfaces are hydroseeded and seed germinates and grows stabilizing surfacing as soon as possible. The optimum seeding windows are April 1 through June 30 and September 1 through October 1. Seeding that occurs between July 1 and August 30 will require irrigation until 75 percent grass cover is established. Seeding that occurs between October 1 and March 30 will require a mulch layer at least 2-inches thick or plastic cover until 75 percent grass cover is established. The contractor shall provide temporary irrigation, mulch or plastic sheeting to hydroseeded areas as required by construction schedule in addition to the hydroseed (per areas dictated on the plans or disturbed to facilitate construction or both) at no additional cost to the owner. Areas that will be seeded must have 2 inches of topsoil installed on the disturbed areas if no native top soil is present. The seedbed should be firm and rough. All soil should be roughened regardless of slope. If compaction is required, slopes must be track walked before seeding. Backblading or smoothing of slopes greater than 4:1 is not permitted if they are to be seeded. Hydroseed applications shall include a minimum of 1,500 pounds per acre of mulch with 3 percent tackifier. Mulch may be made up of 100 percent: cottonseed meal; fibers made of wood, recycled cellulose, hemp, and kenaf; compost; or blends thereof. Tackifier shall be plant -based, such as guar or alpha plantago, or chemical -based such as polyacrylamide or polymers. Any mulch or tackifier product used shall be installed per manufacturer's instructions. Mulch is required for seeding. Any areas that have seed applied by hand shall have a minimum 2-inch thick layer of mulch or topsoil. Slow -release fertilizers shall be used. Fertilizer shall not be agitated more than 20 minutes in the hydromulch machine before it is to be used. On 2:1 to 1.5:1 slopes, Bonded Fiber Matrix (BFM) or Mechanically Bonded Fiber Matrix (MBFM) products may be used in lieu of hydroseed with erosion control mat. BFM/MBFM products are applied with approximately 10 percent tackifier. BFM/MBFM shall be allowed to cure 24-36 hours before rainfall and shall not be installed on wet or saturated soils. The aforementioned specifications are the minimum requirements for the anticipated conditions. It will be the responsibility of the Contractor to ensure seeded areas establish ground cover and to provide any additional measures necessary to establish ground cover in seeded areas. Any seeded areas that fail to establish at least 75 percent cover (100 percent cover for areas that receive sheet or concentrated flows) shall be reseeded at no additional cost to the Owner. Western Washington Hydroseed Mixes Install seed, fertiliser, and mulch for hydroseed mix at the following application rates: Seed 180 pounds per acre Fertilizer 90 pounds per acre, 10-4-6 Nitrogen -Phosphorus -Potassium (N-P-K) Mulch 1,500 pounds per acre BFM/MBFM 3,000 pounds per acre (for 2:1 slopes and steeper) Hydroseed Mix Proportion Percent Percent Name by Weight Purity Germination Tall or meadow fescue 75-80% 98% 90% Seaside/Creeping bentgrass 10-15% 92% 85% Redtop bentgrass 5-10% 90% 80% 8-02.3(18) Property Restoration (Additional Section) If property or improvements are disturbed or damaged, the Contractor shall restore and repair the property or improvements to their original condition and as directed by the Engineer. KING COUNTY WATER DISTRICT NO. 125 PLANS AND TECHNICAL SPECIFICATIONS Water District 125 1 40th-42nd Ave. S — Ph. III PROPOSAL BID SCHEDULE E WATER DISTRICT NO. 125 Note: Bid Schedule E, pertains only to the work associated with the installation of the water improvements for Water District No. 125. The Plans and Specifications for this work are contained in this Appendix G. Language contained in Appendix G Specifications and Schedule E items supersede the specifications for the road work. Having carefully examined the Plans and Specifications for construction of the City of Tukwila 40th — 42nd Avenue South — Phase III project and the premises and all conditions affecting the work, the Contractor proposes to furnish all labor, materials and equipment necessary to perform all of the work required in strict accordance with the above -named documents and their implied intent for the prices listed in Bid Schedule E: Bidder acknowledges that all work shown in the contract documents is not specifically covered as individual bid items. The bidder acknowledges that such work including all labor, materials and equipment necessary for a complete project as shown on the contract drawings and as described within these specifications shall be considered incidental to the project and have been included within the unit bid prices presented in Bid Schedule E. See MEASUREMENT AND PAYMENT SECTION for detailed descriptions of Bid Items. WATER DISTRICT NO. 125 TECHNICAL SPECIFICATIONS The technical specifications for items exclusive to the Water District 125 work shall be as set forth in Divisions 7 and 9 of the Standard Specifications for Road, Bridge and Municipal Construction, latest Edition, prepared by the Washington State Chapter of the American Public Works Association (APWA) and Washington State Department of Transportation (WSDOT). Specifications for items common to other work associated with the City of Tukwila road project are as called out for that work. All detail specifications set forth herein and all Water District 125 Technical Specifications shown on the plan drawings shall supersede the Standard Specifications. Except as specifically modified and added to herein, all specifications set forth in the Standard Specifications shall be strictly Water District 125 2 40th-42nd Ave. S — Ph. III adhered to in execution of all work. Section and subsection numbers of the various specifications set forth herein refer to corresponding section and subsection numbers of the Standard Specifications. Water District 125 3 40th-42nd Ave. S — Ph. III DIVISION 7 DRAINAGE STRUCTURES, STORM SEWERS SANITARY SEWERS, WATER MAINS AND CONDUITS SECTION 2-07 WATERING The items specified herein shall be considered as replacing in full Sections 2-07.3 through 2-07.5 of the Standard Specifications. Water furnished by the Owner will be charged to the Contractor at the District's commercial rates. Any required transportation of water from the designated existing facilities to the construction site will be the responsibility of the Contractor, and all transportation shall be at the Contractor's expense. Contractor shall obtain and use a hydrant meter from the District and pay $500.00 deposit for the use of this meter. No separate or extra payment will be made for any water used under this Contract, including that used for connection or dust control. Water used under this Contract shall be considered incidental to the other items of work. SECTION 7-09 - PIPE AND FITTINGS FOR WATER MAINS The items specified herein shall be considered as an amendment to Section 7-09. 7-09.2 Materials DUCTILE IRON PIPE (a) Ductile iron pipe shall conform to AWWA Standard C-151. Thickness class 52 or as indicated on the Drawings. Pipe and fittings shall have cement mortar lining conforming to AWWA Standard C-104. Joints shall be mechanical joint or push -on joint and shall conform to AWWA Standard C-111. (b) Cast or Ductile iron fittings shall conform to AWWA Standard C-110 or C-153. Mechanical or push -on joints shall conform to AWWA Standard C-111. Flanged joints shall conform to ASA Standard B-16.1, class 125. Flange gaskets shall be ring type, cloth insert rubber, 1/16-inch thick, equal to Rainbow or Durable Garlock. Fittings shall be lined per AWWA Standard C-104. COPPER SERVICE PIPE AND FITTINGS Copper service pipe and fittings shall conform to AWWA standard C-800, with a minimum working pressure of 150 psi. Copper tubing shall be classification ASTM B88, Type K. Fitting joints shall be cold flared. Saddles: (a) Ductile iron pipe: Connections into ductile iron pipe shall be by direct tap for 1-inch or smaller and shall be made with double strap saddles for 1 %-inch and larger. Connections larger than 2-inch shall be made as required by the District. Water District 125 4 40th-42nd Ave. S. — Ph. III (b) Service saddles, corporation stops, tees, curb stops and reducers shall be as manufactured by Mueller or equivalent. VALVES Gate valves shall be resilient seated gate valves conforming to AWWA Standard C-509. Valves shall be opened by turning counterclockwise. Joints shall be as indicated on the Plans. Before installation, valves shall be cleaned of all foreign material as hereinbefore specified for installation of pipe. Such blocking as the District may deem necessary shall be provided. The valve and valve box shall be set plumb with the valve box centered on the valve. The top of the valve box shall be set to the grade indicated by the District and the valve box "ears" set parallel to the water main. Valve markers shall be set where required by the District for all valves except auxiliary valves for hydrants. The marker shall be set on a line through the valve at right angles to the centerline of the road. The marker shall generally be set on the property line unless the District decides another location is safer or more conspicuous. At depths of cover in excess of 4 feet, valve extensions shall be provided. VALVE BOXES Valve boxes shall be cast iron, two-piece, suitable for installation required, equal to Atlas Foundry Company or Olympic Foundry Company. The cover shall have the word "WATER" cast in it. Valve boxes shall be set flush in pavement and 2 inches low in gravel roads. Valve boxes in paved areas shall have shallow style traffic lid similar to Rich Manufacturing Co. #940 or approved equal. Locking lids similar to Rich Manufacturing Co. #923 or approved equal shall be used where designated on plans. FIRE HYDRANTS Fire Hydrants shall have five %-inch main valve opening (MVO). Hydrant for 42-inch cover, unless otherwise designated, flanged at ground line, 6-inch M-J connections: two 2-1/2 inch hose connection ASA (National) standard thread; 5-inch Stortz pumper discharge port with City of Seattle standard threads (King County) or National standard thread (Cities of SeaTac and Tukwila). Hydrant shall be so constructed that direction of pumper connection may be rotated to face the roadway. Hydrant shackles and straps shall be as shown on standard details. Hydrants shall be Mueller A-423 or M&H 929. Hydrant installation shall generally conform to AWWA Standard C-600 and the Standard Detail Fire Hydrant Assembly. The concrete guard posts as shown on the Standard Detail Drawing shall be installed where required by the District. Shackle rods shall receive two coats of cold tar or asphalt prior to installation. Pumper nozzle shall face the road after installation is completed. Any hydrant not in service shall be identified by covering with a burlap or plastic bag. SECTION 7-09.3(4) - Removal of Existing Street Improvements - Add the following: All asphalt pavement removed during excavation shall be hauled offsite and all edges shall be sawcut to a neat and straight line a distance of 12 inches outside the trench line. No asphalt shall \A/afar rliefrirf 196 6 d(\th-d7nd Ava — Ph III be removed beyond these limits without prior approval by the District. 7-09.3(5) Grade and Alignment — Delete existing and add the following: Pipe shall be laid to specified alignment as staked in the field. Alignment deviation shall not exceed 0.5 feet. Replacement of stakes lost or destroyed shall be made at the Contractor's expense and in accordance with Contract Plans, including modifications called for by the District. 7-09.3(7) Trench Excavation - Delete existing and add the following: Trenches shall be excavated to the line and grade designated by the District. Except for unusual circumstances where approved by the District, the trench sides shall be excavated vertical and the trench width shall be excavated to only such widths as are necessary for adequate working space. The maximum trench width at the top of the pipe shall normally be the outside diameter of the pipe barrel plus 16 inches. The trench shall be kept free from water until jointing material has set. Surface water shall be diverted so as not to enter the trench. The Contractor shall maintain sufficient pumping equipment on the job to insure that these provisions are carried out. Boulders, rocks, roots and other obstructions shall be entirely removed or cut out to the width of the trench and to a depth of 6 inches below water main grade. Where material is removed from below water main grade, the trench shall be backfilled to grade with material satisfactory to the District and thoroughly compacted. Trenching operations shall not proceed until pipe laying is ready to commence and not more than 300 feet of trench shall be opened in advance of pipe laying operations without written approval of the District. However, Contractor is to trench far enough in advance of pipe laying to allow minor deflections in the pipe to avoid existing utilities. No compensation shall be allowed to the Contractor for relaying water main or installation of additional fittings due to conflicts in grade or alignment that should have been foreseen. All work on County or City right-of-way shall be backfilled in its entirety each day. All pavement shall be sawcut prior to excavation as specified in the plans. The Contractor shall be responsible for maintaining the cleanly cut edge during excavation, pipe laying and backfill. Any additional sawcuttinq and asphalt replacement that is required beyond the originally cut edge will be paid for at the Contractor's sole expense and no additional compensation will be made. All areas within the existing asphalt disturbed by the water trenching activities shall be "cold mixed" at the end of each work day. The cold mix shall be wheel rolled to a smooth and uniform surface level with the existing asphalt. Any steel plates left on the road shall be ramped with cold mix so as to leave no exposed plate edges. The cost to provide, place, remove and dispose of cold mix asphalt shall be incidental to the cost of the project. No specific reimbursement for cold mix will be made. The depth of trenching for water mains shall be such as to give a minimum cover of 42 inches over the top of the pipe for all pipe 12 inches in diameter or less. Pipe 16 inches in diameter shall have a minimum cover of 48 inches. Pipe cover shall be increased as required to provide minimum 6-inch clearance when crossing culverts or existing utilities, and due to localized breaks in grade. Where profile of pipeline and ground surface is shown on the Plans, pipeline shall be laid to elevation shown regardless of depth. Excavation shall be to such depth that the minimum cover over the valve nuts shall be one foot. No valve shall be located in such a position as to be in any roadside ditch, drainage ditch or channel. Water District 125 6 40th-42nd Ave. S. — Ph. III All trenches which exceed a depth of four feet shall be provided with adequate safety systems that meet the requirements of the Washington Industrial Safety and Health Act, Chapter 49.17 RCW. 7-09.3(9) - Bedding the Pipe - Delete existing and add the following: Bedding material shall be crushed surfacing top course, and shall conform to section 9-03.9(3) of the Standard Specifications. All rigid pipe shall be placed in bedding material of the type specified in standard specifications. The bedding shall be placed from a minimum of four (4) inches below the pipe barrel to the spring line of the pipe as shown on the Standard Details. Bedding material shall be worked by hand under, around and over the pipe to the depths required for the full width of the trench. If sand is used, it shall be hand compacted around the sides of the pipe to ensure uniform support under the pipe. Bedding shall be placed in more than one lift. The first lift, to provide at least 4-inch thickness under any portion of the pipe, shall be placed before the pipe is installed and shall be spread smoothly so that the pipe is uniformly supported along the barrel. Subsequent lifts of not more than 6-inch thickness shall be placed as shown on the Standard Details and individually compacted to 90 percent of maximum density. 7-09.3(10) - Backfilling Trenches — Delete existing and add the following: Ductile Iron Pipe: Crushed rock material shall be placed and compacted around the water mains by hand tools to a height of 12 inches above the top of the water main. The subsequent backfill shall be placed according to local road jurisdiction that has authority. No water settling will be permitted. Subsequent backfilling shall be performed by pushing material from the end of the trench along and directly over the pipe so that the material will be applied in the form of a rolling slope rather than by side filling. Backfilling from the sides of the trench will not be done until the District has determined that material has been carefully placed over the pipe to a sufficient depth. All other areas: Backfill shall be compacted to 95 percent of maximum theoretical density in all street shoulder areas and in all areas where pavement is to be placed and 90 percent in all other areas. Measurement of density shall be by the modified AASHTO method. The District will arrange for an independent laboratory or King County laboratory to perform in -place density tests as it sees fit to provide proof of compaction meeting these specifications. The costs of such testing shall be paid by the District. 7-09.3(19)A - Connections to Existing Mains - Add the following: Connection of new mains to existing water lines will not be allowed until after the new mains have been successfully tested and flushed. The Contractor shall notify the Owner at least two (2) working days prior to the desired time for making connections to existing mains. The hours selected for cut -in or connection are subject to approval of the Owner. Water District 125 7 dnth_d9nd Ava C — Ph III Where cut -ins are to be made in existing pipes, the work shall be conducted at such a time and in such a manner as to minimize the interruption of service. Necessary pipe, fittings and gate valves shall be assembled at the site ready for installation prior to shutting off the water in the existing main. Once the water has been cut-off, the work shall be prosecuted vigorously and shall not be halted until the line is restored to service. Unless specifically provided for elsewhere in these Specifications, the Contractor shall have the responsibility of giving at least 24 hours' notice to the affected water users. Where connections are to be made to existing AC pipes and for all work with AC pipe, all local, state and EPA regulations and procedures shall be adhered to. Contractor shall not operate any valves, including fire hydrant valves, in any part of the water system, except in the presence of the District. Contractor shall notify the District 24 hours in advance of need to operate valves. Tapping of existing pipe lines where designated on the plans shall be made with tapping tee or cross and valve assembly. The new main shall be tested using normal pipeline pressure prior to start of tapping existing main. 7-09.3(21) - Concrete Thrust Blocking — Delete existing and add the following; Concrete blocking shall be cast from 1:3:6 mix with a slump of not more than six inches (6"). Concrete blocking shall be cast in place and have a minimum of 1/4 square foot bearing against the fitting and bearing area against undisturbed soil as shown in the Standard Details. Additional bearing area may be required by the District. Blocking shall bear against fittings only and shall be clear of joints so as to permit taking up or dismantling joints. All hydrants, bends and tees shall be blocked. The Contractor shall install blocking which is adequate to withstand full test pressure as well as to continuously stand operating pressures under all conditions of service. Vertical blocking, when required, shall conform to that shown in the Standard Details. 7-09.3(23) - Hydrostatic Pressure Test - Add the following: Hydrostatic pressure tests shall be made on all valved sections. The test shall be made at the low point of the section and shall include testing of the services to the curb stop. The Contractor shall provide all necessary equipment and shall perform all work connected with the tests. The installation shall be tested at 250 psi for pipes less than 12 inches in diameter and 200 psi for pipe 12 inches and larger. For approval, the pressure shall not drop more than 5 psi in 15 minutes. Any defective joints, pipe, or fittings shall be replaced at the Contractor's expense and the test repeated until satisfactory. Water used for the initial testing shall be provided by the Owner. If additional testing is required as a result of failure, all water shall be paid for by the Contractor at the existing Water District rates. Each valved section of the water main shall be tested after backfilling the main and allowing concrete blocking to set, to prevent movement. Each valve shall be tested in the closed position. Water District 125 8 40th-42nd Ave. S. — Ph. III 7-09.3(24) - Disinfection of Water Mains - Add the following: Sterilization of water lines shall in general condition conform to AWWA Standard C-601. Chlorination shall be by chlorine -bearing compound placed in each pipe length or capsules secured to the top of the barrel of each pipe length. Sterilization shall include all pipe mains, all pipe runs to hydrants and all service lines to the curb stop. Contact period shall be for a minimum of 24 hours during which time all valves shall be opened and closed. After the contact period, all mains, services and pipe runs to hydrants shall be thoroughly flushed and a water sample taken for testing and approval by the Washington State Department of Health. Water used for the initial flushing and sterilization shall be provided by the owner. Additional water required as a result of failure or water used from a water main break caused by the Contractor shall be paid for by the Contractor at the existing Water District rates. Water District 125 9 40th-42nd Ave. S. — Ph. III SP- 29 Lump sum payment shall be based upon the alignment and Private Services Schedule shown in the plans. Lump sum payment shall include all labor equipment and material necessary for the sawcutting and excavation of the private service joint trench, shoring, bedding, backfill, placement of detectable marking tape and compaction. Bid Item No. C58 — Property Restoration for Private Service (8-34) Measurement and payment for "Property Restoration for Private Service" shall be by Force Account. Costs affiliated with the Engineer's direction to restore property upon completion of the private services work will be paid for by force account in accordance with section 1-09.6. To provide a common proposal for all bidders, the Contracting Agency has estimated the amount for "Property Restoration for Private Services and entered the amount in the proposal to become a part of the total bid by the Contractor. Private property damage due to the Contractor's negligence shall be resolved by the Contractor at no expense to the Contracting Agency. Valley View Sewer District Schedule D 42nd Avenue South Gravity Sewer Measurement and Payment SCHEDULE D MEASUREMENT AND PAYMENT It is the intention of these specifications that the performance of all work under the bid for each item shall result in the complete construction in an accepted operating condition of each item. Work and material not specifically listed in the proposal, but required according to the contract Plans, Technical Provisions, and general practice shall be included in the contractor's bid price. No separate payment of any kind will be made for these incidental items. The measurement and payment descriptions below pertain to the titles directly above them. Bid Item No. D1 — Traffic Control The lump sum price shall cover the complete cost of furnishing, installing and removing all temporary traffic signs and barricades. Price shall also include all labor costs to provide flaggers and police. Measurement shall be lump sum with partial payments for this item made based upon work completed as determined by the Engineer. Bid Item No. D2 — Shoring & Trench Safety Systems The price per lineal foot shall cover the complete cost of furnishing, installing and removing all shoring and sheeting necessary to support and temporarily cover trenches and excavations for project work associated with sanitary sewer improvements. Shoring and sheeting shall be as specified in the Standard Specification and the special provisions for utility work. Bid shall not be less than $1 per lineal foot for this bid item. Measurement shall be per lineal foot of pipe installed. Bid Item No. D3 — Temporary Erosion and Sedimentation Control The lump sum price for temporary erosion control will be full compensation for all materials, labor, tools, and equipment required to finish, install, maintain, and remove erosion and sedimentation control, including silt fencing, straw waddles, catch basin inserts, and dirtbag(s) for water filtration. Daily street sweeping, protection and cleaning of storm drain system (including catch basin inserts) shall be included in this item. Erosion control items must be provided per what is provided in the Plans, Contract Documents and Technical Provisions. Measurement shall be lump sum with partial payments for this item made based upon work completed as determined by the Engineer. Bid Item No. D4 — Dewatering The lump sum price shall cover, for sanitary sewer improvements, the complete cost of all trench and other excavation dewatering, conveyance and treatment of dewatering water for turbidity reduction (to the levels identified in the Technical Provisions) and disposal of said water. Measurement shall be lump sum with partial payments for this item made based upon work completed as determined by the Engineer. Bid Item No. D5 — Potholing The per each price for potholes will be full compensation for potholing for conflicting utility lines, as shown on the Plans and/or as directed by the Engineer. The price shall include removal and disposal of Valley View Sewer District Schedule D 42nd Avenue South Gravity Sewer Measurement and Payment pavement, excavating the pothole, disposing of the excavated material, and any other costs associated with locating conflicting utility lines. Measurement shall be per each pothole. Bid Item No. D6 — Landscape and Misc. Restoration The lump sum price for landscape restoration shall be full compensation for all labor, material and equipment necessary to restore the project area back to its original condition, and according to applicable requirements. The unit price for this bid item shall also include: 1. Finish grading and restoration of easement and temporary construction areas including mounding of trenches where indicated or directed by Owner. Gravel driveway surface restoration shall be paid under the bid item gravel Driveway Restoration". 2. Removing, storing and replanting of trees, shrubs and ornamental plants. 3. Protection, replacement, reconstruction of existing features such as fences, mail boxes, benches, decks, rockeries and traffic signs. 4. Restoration of ditches, culverts, channels and other existing structures disturbed during construction. 5. Lawn restoration in Right -Of -Way areas including topsoil, hydroseeding and sod in lawn areas. This includes all disturbed permeable areas. 6. Replacement of all permanent survey monuments which had been damaged, disturbed, or destroyed during construction. 7. Providing and planting new trees and shrubs as shown on Plans. 8. Seeding, hydroseeding and/or sod placement. 9. Providing and placing topsoil as required by Plans, Technical Provisions and Permits. This bid item shall include all restoration not covered by other bid items. No further compensation will be made for restoration work. Payment for this bid item will be made based upon work completed as determined by the Engineer. Bid Item No. D7 — Gilliam Creek Temporary Gravity Wastewater Bypass The lump sum price for Gilliam Creek Temporary Gravity Wastewater Bypass shall be full compensation for all labor, material, and equipment necessary to install, operate, disassemble, and dispose of the temporary bypass piping system spanning the Gilliam Creek culvert replacement (between SSMH E17-49 and SSMH E17-52) per these Plans, Contract Documents, Technical Provisions and permit requirements. The price shall include, but is not limited to, the following: 1. Maintaining the functionality of the existing sanitary sewer system during the installation and decommissioning of the bypass piping system. 2. Maintain service for 8-inch-diameter lateral entering Manhole E17-49 from the west. 3. Maintain service for 8-inch-diameter main entering Manhole E17-52 from the west. 4. Coordination with PSE's Contractor to install the bypass piping system on the bridge spanning the excavation. 5. Furnishing and fusing 12-inch HDPE bypass pipe. 6. Verifying angles and dimensions for necessary HDPE fittings, fabricating said fittings, and fusing fitting -to -pipe connections. Valley View Sewer District Schedule D 42nd Avenue South Gravity Sewer Measurement and Payment 7. Connection and adjustment to grade of 12-inch bypass pipe with ratchet tie -downs to temporary bridge structure. 8. Core -drilling existing MH E17-49 and existing MH E17-52 for bypass pipe, installing bypass pipe into penetrations, and grouting the annular space to ensure a watertight seal. 9. Decommissioning of bypass piping system. 10. Clearing and disposing of all cleared material. 11. Excavation of all materials encountered during pipe installation. 12. Mud and dust control. Bid Item No. D8 — Other Temporary Wastewater Bypasses The lump sum price for Other Temporary Wastewater Bypasses shall be full compensation for all labor, material, and equipment necessary to provide, install, staff, manage, and remove all temporary wastewater bypasses and bypass pumping, excepting the Gilliam Creek bypass paid under the bid item `Gilliam Creek Temporary Gravity Wastewater Bypass" per these Plans, Contract Documents, Technical Provisions and permit requirements. The price shall include the provision, installation, securing and protection of at least two temporary bypass pumps for each bypass, associated piping, pipeline plugs, and all labor necessary to transfer wastewater flow to the bypass system. The price shall include all material and labor costs to furnish and install temporary pipe protection where bypass lines cross roads and to restore these areas back to original condition once temporary bypass lines are removed. Provision and installation of a flow -through plug in Manhole E17-51 during channel concrete curing shall be paid under this bid item. Price shall include labor costs for planning and logistical coordination for the transfer of wastewater flow into the bypasses and then back to the permanent system. Costs for preparation of submittal for bypass Plans shall be included in this pay item. Measurement shall be lump sum with partial payments for this item made based upon work completed as determined by the Engineer. Bid Item No. D9 — 60-inch Saddle Manhole (E17-77) The lump sum price for this item shall be full compensation for furnishing and placing a 60-inch saddle manhole per Plans and Technical Provisions, including ring and cover, manhole section joint sealing, pipe to manhole connections, channeling, grouting, excavation, dewatering, placement of backfill material, disposal of displaced material, furnishing and placing manhole foundation material, compaction, vertical extension, adjustment to grade, and vacuum testing. Bid Item No. D10 — 48-inch Standard Manhole (F17-21, F17-22) The per each price for this item shall be full compensation for furnishing and placing a 48-inch standard manhole per Plans and Technical Provisions, including ring and cover, manhole section joint sealing, pipe to manhole connections, channeling, grouting, excavation, dewatering, placement of backfill material, disposal of displaced material, furnishing and placing manhole foundation material, compaction, vertical extension, adjustment to grade, and vacuum testing. Manhole F17-21 is approximately 14 feet deep and Manhole F17-22 is approximately 9 feet deep. Bid Item No. D11 — 72-inch Standard Manhole with Extra Channeling Work (E17- 51 The lump sum price for this item shall be full compensation for furnishing and placing a 72-inch Valley View Sewer District Schedule D 42nd Avenue South Gravity Sewer Measurement and Payment sealing, pipe to manhole connections, channeling and grouting per detail in the Plans, excavation, dewatering, placement of backfill material, disposal of displaced material, furnishing and placing manhole foundation material, compaction, vertical extension, adjustment to grade, and vacuum testing. The price shall also include providing a concrete cylinder and compressive strength testing results per ASTM C31. Bid Item No. D12 — 72-inch Standard Manhole (E17-53) The lump sum price for this item shall be full compensation for furnishing and placing a 72-inch standard manhole per Plans and Technical Provisions, including ring and cover, manhole section joint sealing, pipe to manhole connections, channeling, grouting, excavation, dewatering, placement of backfill material, disposal of displaced material, furnishing and placing manhole foundation material, compaction, vertical extension, adjustment to grade, and vacuum testing. Bid Item No. D13 — 60-inch Shallow Manhole (E17-76) The lump sum price for this item shall be full compensation for furnishing and placing a 60-inch shallow manhole per Plans and Technical Provisions, including ring and cover, manhole section joint sealing, pipe to manhole connections, channeling, grouting, excavation, dewatering, placement of backfill material, disposal of displaced material, furnishing and placing manhole foundation material, compaction, vertical extension, adjustment to grade, and vacuum testing. Bid Item No. D14 — 72-inch Shallow Manhole (E17-49, E17-52) The per each price shall be full compensation for furnishing and placing a 72-inch shallow manhole per Plans and Technical Provisions, including ring and cover, manhole section joint sealing, pipe to manhole connections, channeling, grouting, excavation, dewatering, placement of backfill material, disposal of displaced material, furnishing and placing manhole foundation material, compaction, vertical extension, adjustment to grade, and vacuum testing. Bid Item No. D15 — 8-inch SDR 35 PVC Pipe The price per lineal foot of 8-inch SDR 35 PVC sewer pipe shall be full compensation for furnishing and installing sewer main pipe and fittings per these Plans, Contract Documents, Technical Provisions, and permit requirements. The price shall include, but is not limited to, the following: 1. Saw cutting existing pavement. 2. Materials and labor for placing and removing temporary cold -mix patch. 3. Cleaning and disposing of all cleared material. 4. Excavation of all materials encountered during pipe installation and reuse/storage/disposal of displaced material. 5. Furnishing and installing pipe bedding per Plans and Technical Provisions. 6. Furnishing and installing all sewer pipe, including fittings, bends, gaskets, manhole couplings, couplings to existing sewer lines and stubs, plugs, and flushing and testing. 7. Placement and compaction of backfill in accordance with the applicable agency's requirements. 8. Mud and dust control. 9. Maintenance, restoration, supports and coordination of other utilities affected by construction. 10. Providing for compaction tests as required by the Owner or Engineer or in accordance with Valley View Sewer District Schedule D 42nd Avenue South Gravity Sewer Measurement and Payment 11. Furnishing and installing all required fittings to provide for side sewer service connections. 12. All work shall be performed in order to adhere to the restrictions and requirements as stated on all easements and State, County and City permits issued for this project. 13. Temporary removal, storage and replacement of all items present within the project area as required for installation of the sewer pipe and appurtenances including rockeries, fences, other material and private property items. 14. Asphalt recycling. 15. Equipment and labor during construction and post -installation video inspection. 16. All costs not chargeable to other specific bid items in the contract for a complete job as shown and described within the contract documents. Payment shall be based upon the length of 8-inch SDR 35 PVC sewer pipe installed. Bid Item No. D16 — 8-inch AWWA C900 DR 25 PVC Pipe The price per lineal foot of 8-inch AWWA C900 DR 25 PVC sewer pipe shall be full compensation for furnishing and installing sewer main pipe and fittings per these Plans, Contract Documents, Technical Provisions, and permit requirements. The price shall include, but is not limited to, the following: 1. Saw cutting existing pavement. 2. Materials and labor for placing and removing temporary cold -mix patch. 3. Clearing and disposing of all cleared material. 4. Excavation of all materials encountered during pipe installation and reuse/storage/disposal of displaced material. 5. Furnishing and installing pipe bedding per Plans and Technical Provisions. 6. Furnishing and installing all sewer pipe, including fittings, bends, gaskets, manhole couplings, couplings to existing sewer lines and stubs, plugs, and flushing and testing. 7. Placement and compaction of backfill in accordance with the applicable agency's requirements. 8. Mud and dust control. 9. Maintenance, restoration, supports and coordination of other utilities affected by construction. 10. Providing for compaction tests as required by the Owner or Engineer or in accordance with permit requirements by the City of Tukwila. 11. Furnishing and installing all required fittings to provide for side sewer service connections. 12. All work shall be performed in order to adhere to the restrictions and requirements as stated on all easements and State, County and City permits issued for this project. 13. Temporary removal, storage and replacement of all items present within the project area as required for installation of the sewer pipe and appurtenances including rockeries, fences, other material and private property items. 14. Asphalt recycling. 15. Equipment and labor during construction and post -installation video inspection. Payment shall be based upon the length of 8-inch AWWA C900 DR 25 PVC sewer pipe installed. Valley View Sewer District Schedule D 42"d Avenue South Gravity Sewer Measurement and Payment Bid Item No. D17 — 18-inch SDR 35 PVC Pipe The price per lineal foot of 18-inch SDR 35 PVC sewer pipe shall be full compensation for furnishing and installing sewer main pipe and fittings per these Plans, Contract Documents, Technical Provisions, and permit requirements. The price shall include, but is not limited to, the following: 1. Saw cutting existing pavement. 2. Materials and labor for placing and removing temporary cold -mix patch. 3. Clearing and disposing of all cleared material. 4. Excavation of all materials encountered during pipe installation and reuse/storage/disposal of displaced material. 5. Furnishing and installing pipe bedding per Plans and Technical Provisions. 6. Furnishing and installing all sewer pipe, including fittings, bends, gaskets, manhole couplings, couplings to existing sewer lines and stubs, plugs, and flushing and testing. 7. Placement and compaction of backfill in accordance with the applicable agency's requirements. 8. Mud and dust control. 9. Maintenance, restoration, supports and coordination of other utilities affected by construction. 10. Providing for compaction tests as required by the Owner or Engineer or in accordance with permit requirements by the City of Tukwila. 11. Furnishing and installing all required fittings to provide for side sewer service connections. 12. All work shall be performed in order to adhere to the restrictions and requirements as stated on all easements and State, County and City permits issued for this project. 13. Temporary removal, storage and replacement of all items present within the project area as required for installation of the sewer pipe and appurtenances including rockeries, fences, other material and private property items. 14. Asphalt recycling. 15. Equipment and labor during construction and post -installation video inspection. Payment shall be based upon the length of 18-inch SDR 35 PVC sewer pipe installed. Bid Item No. D18 — 30-inch Class 52 Ductile Iron Pipe with Ceramic Epoxy Lining The price per lineal foot of 30-inch Class 52 ductile iron sewer pipe shall be full compensation for furnishing and installing sewer main pipe and fittings per these Plans, Contract Documents, Technical Provisions, and permit requirements. The price shall include, but is not limited to, the following: 1. Saw cutting existing pavement. 2. Materials and labor for placing and removing temporary cold -mix patch. 3. Clearing and disposing of all cleared material. 4. Excavation of all materials encountered during pipe installation and reuse/storage/disposal of displaced material. 5. Furnishing and installing pipe bedding per Plans and Technical Provisions. 6. Furnishing and installing all sewer pipe, including fittings, bends, gaskets, manhole couplings, couplings to existing sewer lines and stubs, plugs, and flushing and testing. Placement and rmmnartinn of harlrfill in arrnrrlanre [STi th flip arlrdirahlp arrpn rule rplrllirp mpntc Valley View Sewer District Schedule D 42nd Avenue South Gravity Sewer Measurement and Payment 8. Mud and dust control. 9. Maintenance, restoration, supports and coordination of other utilities affected by construction. 10. Providing for compaction tests as required by the Owner or Engineer or in accordance with permit requirements by the City of Tukwila. 11. Furnishing and installing all required fittings to provide for side sewer service connections. 12. All work shall be performed in order to adhere to the restrictions and requirements as stated on all easements and State, County and City permits issued for this project. 13. Temporary removal, storage and replacement of all items present within the project area as required for installation of the sewer pipe and appurtenances including rockeries, fences, other material and private property items. 14. Asphalt recycling. 15. Equipment and labor during construction and post -installation video inspection. Payment shall be based upon the length of 30-inch Class 52 ductile iron sewer pipe installed. Bid Item No. D19 — Controlled Density Fill Pipe Encasement The per cubic yard price shown shall cover the complete cost of providing all materials, equipment, and labor necessary for providing and installing controlled density fill for pipe encasement between SSMH E17-49 and SSMH E17-53 per the Plans, and other instances where necessary. Price shall include delivery and placement. Measurement shall be per cubic yard. Bid Item No. D20 — Crushed Surfacing Top Course Compacted Trench Backfill The unit of measurement for 12-inch layer crushed rock compacted trench backfill shall be per linear foot installed. Crushed rock shall be 5/8-inch minus and be installed in lifts no thicker than 12 inches per these Technical Provisions, drawings and details in areas disturbed by the sewer main construction and in those locations directed by the Engineer. Measurement and payment for this bid item does not include the crushed rock installed as part of the bid items for "60-inch Saddle Manhole," "48-inch Standard Manhole, ""72-inch Standard Manhole with Extra Channeling Work," "72-inch Standard Manhole," "60-inch Shallow Manhole," "72-inch Shallow Manhole," "8-inch SDR 35 PVC Pipe," "8-inch AWIVA C900 DR 25 PVC Pipe," "18-inch SDR 35 PVC Pipe," "30-inch Class 52 Ductile Iron Pipe with Ceramic Epoxy Lining" `Gilliam Creek Crossing Crushed Surfacing Top Course Compacted Trench Backfill," gravel Driveway Restoration," or "10-inch HMA Patch with 8-Inch Crushed Rock Base." Bid Item No. D21 — Crushed Surfacing Base Course Compacted Trench Backfill The unit of measurement for 12-inch crushed surfacing base course — select trench backfill shall be per linear foot installed. Base course shall be installed in lifts no thicker than 12 inches per these Technical Provisions, drawings and details in areas disturbed by sewer main construction and in those locations directed by the Engineer. Such payment shall constitute full compensation for all labor, equipment, tools and supplies, and material necessary to complete all items of the work in accordance with these Technical Provisions and applicable drawings. Measurement for select trench backfill shall be the linear foot based on the distance measured horizontally between centers of manholes and/or at the lower end of the cleanout installed at a thickness of 12 inches. At the end of the line, no allowance will be given from center of manhole to the end of the manhole excavation. Valley View Sewer District Schedule D 42nd Avenue South Gravity Sewer Measurement and Payment Bid Item No. D22 — Gilliam Creek Crossing Crushed Surfacing Top Course Compacted Trench Backfill The unit of measurement for 12-inch layer crushed rock compacted trench backfill below the sewer pipe for the Gilliam Creek Crossing shall be per linear foot installed. Crushed rock shall be 5/8-inch minus and be installed in a 4.5-ft wide column in lifts no thicker than 12 inches per these Technical Provisions, drawings and details in areas disturbed by the culvert excavation and in those locations directed by the Engineer. Bid Item No. D23 — Foundation Material The unit price per ton shall cover the complete cost of providing pipe foundation material, as described in the Technical Provisions, at the direction of the Construction Inspector or Engineer. All excavation and disposal of existing soft material, compaction of new material, and other necessary equipment, labor, and materials required to install the foundation material shall be paid under this bid item. Measurement shall be per ton. Bid Item No. D24 - Gravel Driveway Restoration The lump sum price shall be full compensation for restoring the gravel driveway for 15460 42' Avenue South. The price shall include providing, placing, and grading 3 inches of crushed surfacing top course to restore the driveway's surface. Measurement shall be lump sum with partial payments for this item made based upon work completed as determined by the Engineer. Bid Item No. D25 — 10-inch HMA Patch with 8-inch Crushed Rock Base The unit of measurement for 10-inch HMA patch with 8-inch crushed rock compacted base shall be per square yard of Class 1 inch PG 64-22 HMA pavement installed per these Plans, Contract Documents, Technical Provisions, and permit requirements. The unit price per square yard shall include all the costs of material and labor for furnishing and installing compacted Class 1/2 inch PG 64-22 HMA pavement on roadways and driveways, to match the existing asphalt depth disturbed by the sewer main trench and in those locations directed by the Engineer. Work paid under this item shall also include saw -cutting, grinding at driveways (if necessary) and joint sealing. Included shall be the cost of providing and compacting a crushed surfacing base course. The HMA patch shall be installed in 2-inch lifts with 8 inches of crushed surfacing base course. Bid Item No. D26 — Record Drawings and Post -Construction Survey The lump sum price shall be full compensation for the following: • A full set of construction plans, with deviations made from the sanitary sewer design during construction recorded by the contractor. • A post -construction survey, to be completed by a Professional Land Surveyor. The post - construction survey shall include the state plane coordinates and elevation of manholes and other sanitary sewer structures, and the invert elevations of sanitary sewer pipes. The post -construction survey shall be provided to the Engineer in AutoCAD format. Measurement shall be lump sum. MEASUREMENT AND PAYMENT For Schedule E — Water District 125 Items Only GENERAL The Contract price for each item shall constitute full compensation for furnishing all plant, labor, materials and equipment for the performing of all the work and operations required to construct the completed items as shown on the drawings and as specified herein. Payment for the completed work shall be considered full compensation and shall include all items required for a complete job but not specifically mentioned in the Contract Documents and items mentioned in the Contract Documents but not having a specific pay item. Work will be paid for under one item only. If the Contract Documents require work that has no unit or lump sum bid item in the proposal, costs shall be incidental and included within the other unit and lump sum bid prices in the Proposal. For Schedule E, Delete all references to Measurement and Payment in the Standard Specifications and replace with the following. Bid Item El - TRENCH SAFETY The completed work described in these contract documents and in accordance with all applicable codes, ordinances and laws shall constitute the lump sum work for this item as listed in the proposal. The lump sum (LS) price bid for this item shall constitute full compensation for providing safe trench environment, in compliance with Washington Industrial Safety and Health ACT (RAW 49.17) and safety and health standards such as Safety Standards for Construction Work (Chapter 296-155 WAC), General Safety and Health Standard (Chapter 296-24 WAC), General Occupational Health Standard (Chapter 296-22 WAC), and any other appropriate safety and health codes. Payment will be made based on the percent of the project completed. Bid Item E2 - INSTALL 12" LINE VALVE AT TEE Measurement and payment for new 12" Line Valve at Tee shall be per each and shall cover all costs required to install the valves to allow isolation of the creek crossing area, including cutting and removing pipe as necessary, verification of existing and proposed fitting configurations, provision and installation of the valves, pipe nipples and couplings and all other appurtenances associated with the installation. Bid Items E3 and E4 - REMOVE AND DISPOSE OF EXISTING " D.I. PIPE Measurement and payment for Removal and Disposal of Existing Pipe shall be per lineal foot and shall be full compensation for the excavation, removal and lawful disposal of existing ductile iron water pipe. Bid Item E5 - CL 52, 12" D.I. PIPE AND FITTINGS Measurement and payment for new Water Main shall be per lineal foot of pipe laid, tested and 1A/rtcr (lic+rirf 1')i 1n dnth A )nd p%/c C - Ph III approved, and shall be measured along the pipe through fittings, valves and couplings. Items to be included in the bid price shall include but shall not necessarily be limited to: a) Excavation of all materials of whatever nature encountered. b) Sheeting, bracing and dewatering, when necessary. c) Furnishing, installing, and testing pipe and fittings. d) Furnishing, placing and compacting bedding material. e) Placing and compacting crushed gravel backfill for trench. f) All restrained joints as shown on the plans and not paid for elsewhere. g) Flushing. h) Pressure and sanitary testing. i) Blocking of pipe and fittings. Bid Item E6 — 8" D.I., RESTRAINED JOINT PIPE & Fittings Bid Item E7 - CONNECT TO EXISTING WATER MAIN The unit price per each for connection to existing main shall constitute full compensation for all work required to make connections to existing facilities. The unit price shall include excavation and backfill, temporary blowoffs and blocking as required for testing and flushing prior to the permanent connection, tapping tees where called for and all 4" and 6" piping, and bends and fittings as shown on the details. Valves will be paid for under a separate bid item. Bid Item E8 - REMOVE AND ABANDON EXISTING SPU METER VAULT The lump sum price to Remove and Abandon the Existing SPU Meter Vault shall constitute full compensation for all work required to remove and dispose of the existing meter and associated appurtenances, including the internal piping, valves and fittings, vault, hatch and all other internal equipment. Bid Item E9 - CONSTRUCT NEW SPU METER VAULT The lump sum price bid to Construct New SPU Meter Vault shall constitute full compensation for all work required to provide and install the vault, meter and piping shown on the drawings, including excavation and backfill, provision of risers and leveling brick as necessary to match the proposed walk grade and all temporary piping and fittings for testing and disinfection. Bid Item E10 - EXTEND/RELOCATE EXISTING FIRE HYDRANT The unit price per each for connection to existing fire hydrant shall constitute full compensation for all work required to relocate existing hydrants. The unit price shall include excavation and backfill, removal of the existing hydrant, connection to the existing hydrant run, new restrained joint couplings and piping as needed, re -installation of the hydrant in accordance with the standard detail and all backfill and compaction. Bid Item Ell — INSTALL NEW FIRE HYDRANT ASSEMBLY The unit price per each for install new fire hydrant assemblies shall include all costs of furnishing and installing the hydrant assemblies in the location shown on the plans and as Water District 125 11 4nth-47nd AvA S - Ph III specified herein. The unit bid price shall include the furnishing and placing of all materials shown on the plans for these assemblies, including hydrant body, tapping tees and piping connection to water main, valve, valve box, Stortz fitting, shackles, tie rods, pier blocks, washed gravel, guard posts, covering, painting and incidentals that will be required for the complete installation of the hydrant as specified. Bid Item E13 — REPLACE 1" LONG SIDE WATER SERVICE The unit price per each for replace 1" long side water service shall include all costs associated with furnishing and installing long side services as shown on the plans. Costs shall include but not necessarily be limited to saddles, corporation stops, tees, reducers, angle stops, meter boxes, Type K annealed copper pipe, connection of the new service to the existing service line, transfer of the existing meters, and any other appurtenances and labor necessary for a complete installation. Long services shall be defined as any service where the meter is on the opposite side of the road from the new water main. Long services shall be installed by hogging, boring or jacking, the cost of which shall be included in the price bid. No open cuts for long service installation will be allowed without prior approval by the District. Bid Items E12 and E14 — REPLACE 1" & 1'/2" SHORT SIDE WATER SERVICE The unit price per each for replace 1" and 1'h" short water service shall include all costs associated with furnishing and installing short services as shown on the plans. Costs shall include but not necessarily be limited to saddles, corporation stops, tees, reducers, angle stops, meter boxes, Type K annealed copper pipe, connection of the new service to the existing service line, transfer of the existing meters, and any other appurtenances and labor necessary for a complete installation. Short services shall be defined as any service where the meter is on the same side of the road as the new water main. Bid Item E15 - ADJUST VALVE BOX TO GRADE The unit price per each shall cover all costs associated with adjusting the existing valve boxes to the new street or sidewalk grade, including excavation as necessary, extending the existing riser or installation of new valve box risers as needed and restoration of the area around the box. Bid Item E16 - PLUG & BLOCK EXISTING MAIN The unit price per each shall cover the costs of all labor and equipment necessary to excavate, expose and cut, plug, cap or blind flange and block existing mains to allow for temporary removal of the main in the creek culvert area. The unit price also includes the cost of all equipment and labor necessary for backfill and restoration. Bid Item E17 - CRUSHED SURFACING TOP COURSE The unit price per ton for crushed surfacing top course shall include furnishing the material, delivering to the site, and placing and compacting as required and as determined necessary by the Owner. Measurement shall be by the ton as verified by truck tickets collected and delivered to the inspector at the time of delivery. Water District 125 17 dnth_117nd /ova — Ph III City of Tukwila BID AND CONTRACT DOCUMENTS AND SPECIFICATIONS FOR CITY OF TUKWILA 40TH — 42ND AVENUE SOUTH — PHASE III City of Tukwila Department of Public Works 6300 Southcenter Blvd., Suite 100 Tukwila, WA 98188 March 2017 VOLUME 2 of 2 The following appendices are attached and made a part of this contract: APPENDIX A: Geotechnical Data Report APPENDIX B: Potholing Plans APPENDIX C: City of Tukwila Standard Plans APPENDIX D: Prevailing Wage Rates APPENDIX E: Utility Undergrounding Standards and Details APPENDIX F: PSE Plans for Temporary Gas Main Support at Culvert APPENDIX G: HPA Permit APPENDIX H: City of Tukwila Standard Forms niT/ osr TI IVIA/11 A .1A SP- 15 Bid Item No. A100 — Cement Conc. Sidewalk (8-14) Measurement and Payment for "Cement Conc. Sidewalk" shall be per square yard. Measurement shall be of finished surface and will not include the surface area of the curb ramps. Bid Item No. A101 — Cement Conc. Curb Ramp, Type A (8-14) Measurement and Payment for "Cement Conc. Curb Ramp, Type A" shall be per each for the complete curb ramp installed and includes the installation of the detectable warning surface. Bid Item No. A102 — Cement Conc. Curb Ramp, Type Parallel A (8-14) Measurement and Payment for "Cement Conc. Curb Ramp, Type Parallel A" shall be per each for the complete curb ramp installed and includes the installation of the detectable warning surface. Bid Item No. A103 — Paved Buffer Zone (8-14) Measurement and Payment for "Cement Conc. Curb Ramp, Type Parallel A" shall be per square yard of finished surface. Bid Item No. A104 — Quarry Spalls (8-15) Measurement and Payment for "Quarry Spalls" shall be per ton of spalls actually placed. The unit Contract price per ton "Quarry Spalls" shall be full pay for all costs in furnishing, placing, and compacting spalls. Bid Item No. A105 — Mailbox Support, Type 1 (8-18) Measurement and Payment for "Mailbox Support, Type 1" shall be per each. Mailbox supports will be measured by the unit for each kind of mailbox support furnished and installed in its permanent location. Bid Item No. A106 — Mailbox Support, Type 2 (8-18) Measurement and Payment for "Mailbox Support, Type 2" shall be per each. Mailbox supports will be measured by the unit for each kind of mailbox support furnished and installed in its permanent location. Bid Item No. A107 - Illumination System Complete (8-20) Measurement and Payment for "Illumination System, Complete" shall be per lump sum. The lump sum Contract price for "Illumination System, Complete" shall be full pay for the construction of the complete electrical system, modifying existing systems, or both as described in section 8-20 and as shown in the Plans, including excavation, backfilling, concrete foundations, conduit, wiring, restoring facilities destroyed or damaged during construction, salvaging existing materials, and for making all required tests. All additional materials and labor, not shown in the Plans or called for herein and which are required to complete the electrical system, shall be included in the lump sum Contract price Bid Item No. A108 — Permanent Signing (8-21) Measurement and Payment for "Permanent Signing" shall be per lump sum. SP- 16 The lump sum cost shall be full compensation for all work necessary to or incidental to removing existing signs, relocating existing signs, and to furnish and install new signs, including posts, hardware, and restoration, as needed. Bid Item No. A109 — Plastic Stop Line (8-22) Measurement and payment for "Plastic Stop Line" shall be per linear foot. Included in the unit bid item price shall be, but shall not necessarily be limited to: all necessary materials, labor, and equipment to satisfactorily complete the work as defined in the Standard Specifications and these Special Provisions. Bid Item No. A110 — Plastic Line (4") (8-22) Measurement and payment for "Plastic Line (4")" shall be per linear foot. The measurement for "Plastic Line" will be based on the total length of each 4 inch plastic line installed. No deduction will be made for the unmarked area when the marking includes a broken line such as, center line, dotted extension line, center line with no -pass line, lane line, reversible lane line, or two-way left -turn center line. Bid Item No. A111 — Plastic Wide Lane Line (8") (8-22) Measurement and payment for "Plastic Wide Lane Line (8")" shall be per linear foot. The measurement for "Plastic Wide Lane Line" will be based on the total length of each 8 inch wide plastic line installed. No deduction will be made for the unmarked area when the marking includes a broken line such as, center line, dotted extension line, center line with no -pass line, lane line, reversible lane line, or two-way left -turn center line. Bid Item No. A112 — Plastic Crosswalk Line (8-22) Measurement and payment for "Plastic Crosswalk Line" shall be per square foot of marking installed. Bid Item No. A113 — Plastic Traffic Arrow (8-22) Measurement and payment for "Plastic Traffic Arrow" shall be per each. Included in the unit bid item price shall be, but shall not necessarily be limited to: all necessary materials, labor, and equipment to satisfactorily complete the work as defined in the Standard Specifications and these Special Provisions. Bid Item No. A114 — Plastic Sharrow Symbol (8-22) Measurement and payment for "Plastic Sharrow Symbol" shall be per each. Included in the unit bid item price shall be, but shall not necessarily be limited to: all necessary materials, labor, and equipment to satisfactorily complete the work as defined in the Standard Specifications and these Special Provisions. Bid Item No. A115 — Temporary Pavement Markings (8-23) Measurement and payment for "Temporary Pavement Markings" shall be per linear foot. The unit Contract price shall be full pay for constructing and maintaining temporary lines and markers as specified. All costs for removal of temporary pavement markings shall be included in the unit Contract P`ITV AC TI I1lIAIII A IA/A SP- 17 price per linear foot for "Temporary Pavement Marking". No additional compensation will be allowed when the Contractor is required to repair temporary taped markings that have been damaged or worn. Bid Item No. A116 — Rock for Rock Wall Measurement and payment for "Rock for Rock Wall" shall be per Ton. Bid Item No. A117 — Gravel Backfill for Rock Wall Measurement and payment for "Gravel Backfill for Wall" will be per cubic yard. Bid Item No. A118 — Compacted Till Measurement and payment for "Compacted Till" shall be per Cubic Yard. (8-24) (8-24) (8-24) Bid Item No. A119— Adjust Valve Box to Grade (8-26) Measurement and payment for "Adjust Valve Box to Grade" shall be per each. The unit price per each shall cover all costs associated with adjusting the existing valve boxes to the new street or sidewalk grade, including excavation as necessary, extending the existing riser or installation of new valve box risers as needed and restoration of the area around the box. SP- 18 BID SCHEDULE B - GILLIAM CREEK CULVERT REPLACEMENT Bid Item No. A5 - Minor Change (1-04) Measurement and payment for "Minor Change" shall be by force account per Section 1-09.6 of the Standard Specifications. For the purposes of bidding equality, the Contracting Agency has furnished an estimated quantity for this item of work. Payment will be made only for the actual amount of work performed as authorized and deemed necessary by the Engineer. Bid Item No. B2 - Remove Existing Pipe (2-02) Measurement and payment for "Remove Existing Pipe" will be measured by the linear foot. Bid Item No. B3 - Clearing and Grubbing (2-01) Measurement and Payment for "Clearing and Grubbing" shall be per acre. Bid Item No. B4 - Roadway Excavation Incl. Haul (2-03) Measurement and payment for "Roadway Excavation Incl. Haul" will be per cubic yard. If pavements, sidewalks, curbs, or gutters lie within an excavation area, their removal will be paid for as part of the quantity removed in excavation. Bid Item No. B5 - Gravel Borrow Incl. Haul (2-03) Measurement and payment for "Gravel Borrow Incl. Haul" will be per cubic yard. Bid Item No. B6 - Shoring or Extra Excavation Cl. A for Culvert Footing (2-09) Measurement and payment for "Shoring or Extra Excavation Cl. A for Culvert Footing" will be per square lump sum. The lump sum price shall be full pay for all excavation, backfill, compaction, and other Work required when extra excavation is used in lieu of constructing shoring. If select backfill material is required for backfilling within the limits of the Structure excavation, it shall also be required as backfill material for the extra excavation at the Contractor's expense. Bid Item No. B7 - Conc. Class 4000 for Culvert Footing (6-02) Measurement and payment for "Conc. Class 4000 for Culvert Footing" will be per cubic yard. "Conc. Class 4000 for Culvert Footing" shall be measured in place by the cubic yard to the neat lines of the Structure as shown in the Plans No deduction will be made for pile heads, reinforcing steel, structural steel, bolts, weep holes, rustications, chamfers, edgers, joint filler, junction boxes, miscellaneous hardware, ducts or less than 6- inch diameter drain pipes when computing concrete quantities for payment. Bid Item No. B8 - St. Reinf Bar for Culvert Footing (6-02) Measurement and payment for "St. Reinf Bar for Culvert Footing" will be per pound. ',ITV Ar TI IVIA/11 A %AEA SP- 19 Payment for reinforcing steel shall include the cost of furnishing, fabricating, placing, and splicing the reinforcement. In Structures of reinforced concrete where there are no structural steel Bid items, such minor metal parts as expansion joints, bearing assemblies, and bolts will be paid for at the unit Contract price for "St. Reinf. Bar " unless otherwise specified. Bid Item No. B9 — St. Str. Plate Arch 10 Gage 16 Ft. Span (7-03) Measurement and payment for "St. Str. Plate Arch 10 Gage 16 Ft. Span" will be per linear foot. The concrete collar as shown in the Plan shall be incidental to the St. Str. Plate Arch _ Gage ft. Span bid item. Bid Item No. B10 — Streambed Boulders — One Man (7-03) Measurement and payment for "Streambed Boulders — One Man" will be per ton. Bid Item No. B11 — Streambed Boulders — Two Man (7-03) Measurement and payment for "Streambed Boulders — Two Man" will be per ton. Bid Item No. B12 — Streambed Cobbles (7-03) Measurement and payment for "Streambed Cobbles" will be per ton. Bid Item No. B13 — Coarse Band (7-03) Measurement and payment for "Coarse Band" will be per ton. Bid Item No. B14 — Temporary Stream Diversion (7-06) No Measurement will be made for temporary stream division. Payment will be made in accordance with Section 1-04.1 for the following Bid items when included in the proposal: "Temporary Stream Division", lump sum. The lump sum Contract price for "Temporary Stream Division" shall be full payment to perform the Work as specified, including pumps, pipes, coffer dams, and temporary supports, initial setup, re -set up of the system as needed, and removal of the system. The lumps sum Contract price will also include backup and additional equipment, tools, and materials as needed. Progress payments for the lump sum item "Temporary Water Bypass" will be made as follows: 1. Twenty-five percent of the bid amount will be paid following completion of the TSD Plan including resolution of all Contracting Agency review comments. 2. The remaining seventy-five percent of the bid amount shall be paid in accordance with Section 1-09.9. Bid Item No. B15 — High Visibility Fence Measurement and Payment for "High Visibility Fence" shall be by linear foot. Fencing will be measured by the linear foot along the ground line of the completed fence. (8-01) SP- 20 Bid Item No. B16 — Topsoil Type A (4" Depth) (8-02) Measurement and payment for "Topsoil Type A (4" Depth)" shall be per acre. Where "Topsoil Type A (4" Depth)" is called for in the plans, Topsoil Type A shall be placed at a minimum depth of 4 inches. "Topsoil Type A (4" Depth)" will be measured by the acre along the grade and slope of the area covered after application Bid Item No. B17 — Seed, Fertilize & Mulching (Native Seed Mix A) Measurement and payment for "Seed, Fertilize & Mulching (Native Seed Mix A)" will be per acre. Bid Item No. B18 — Fine Compost (3" Depth) Measurement and payment for "Fine Compost (3" Depth)" shall be per acre. (8-02) (8-02) Where "Fine Compost (3" Depth)" is called for in the plans, Topsoil Type A shall be placed at a minimum depth of 4 inches. "Fine Compost (3" Depth)" will be measured by the acre along the grade and slope of the area covered after application. Bid Item No. B19 through B35 — PSIPE "" (8-02) Measurement and payment for "PSIPE, " shall be per each. The unit Contract price for "PSIPE ", per each, shall be full pay for all materials, labor, tools, equipment, and supplies necessary for weed control within the planting area, planting area preparation, fine grading, planting, cultivating, plant storage and protection, fertilizer and root dip, staking, cleanup, and water necessary to complete planting operations as specified. As the plants that include plant establishment are obtained, propagated, and grown, partial payments shall be made as follows after inspection by the Engineer: Payment of 5 percent of the unit Contract price, per each, when the plant materials have been contracted, propagated, and are growing under nursery conditions. The Contractor shall provide the Engineer with certification that the plant material has been procured or contracted for delivery to the project for planting within the time limits of the project. The certification shall state the location, quantity, and size of all material. Payment shall be increased to 15 percent of the unit Contract price, per each, upon completion of the initial weed control Work. Payment shall) be increased to 60 percent of the unit Contract price per each for the contracted plant material in a designated unit area when planted. Payment shall be increased to 70 percent of the unit Contract price per each for contracted plant material at the completion of the initial planting. Payment shall be increased to the appropriate percentage upon reaching the following plant establishment milestones: June 30th - 80 percent September 30th - 90 percent Completion of first -year plant establishment or after all 100 percent replacement plants have been installed, whichever is later ('Iry nc Ti unA/u A \A/A SP- 21 Plant establishment milestones are achieved when plants meet conditions described in Section 8- 02.3(13). As the plants that do not include plant establishment are obtained, propagated, and grown, partial payments shall be made as follows: Payment of 15 percent of the unit Contract price per each when the plant materials have been contracted, propagated, and are growing under nursery conditions. The Contractor shall provide the Engineer with certification that the plant material has been procured or contracted for delivery to the project for planting within the time limits of the project. The certification shall state the location, quantity, and size of all material. Payment shall be increased to 90 percent of the unit Contract price per each for contracted plant material at the completion of the initial planting. Payment shall be increased to 100 percent at the Physical Completion of the Contract. All partial payments shall be limited to the actual number of healthy vigorous plants that meet the stage requirements, limited to plan quantity. Previous partial payments madle for materials rejected or missing will be deducted from future payments due the Contractor. Bid Item No. B36 — Temporary Irrigation System (8-03) Measurement and Payment for "Temporary Irrigation System" shall be per lump sum. The lump sum contract price for the "Temporary Irrigation System" shall be full pay for all cost associated with furnishing and installing a functional irrigation system including all materials, submittals and installation. Bid Item No. B37 — Settlement Monitoring (8-37) Measurement and payment for "Settlement Monitoring" will be per lump sum. Settlement Monitoring shall be measured per lump sum and shall constitute full pay for furnishing all labor, tools, equipment and materials for installing, reading, reporting, and maintaining each settlement point in operating condition during the time that the construction activities as specified herein are occurring. SP- 22 BID SCHEDULE C - POWER AND COMUNICATIONS UNDERGROUNDING Bid Item No. C1 - Minor Change (1-04) Measurement and payment for "Minor Change" shall be by force account per Section 1-09.6 of the Standard Specifications. For the purposes of bidding equality, the Contracting Agency has furnished an estimated quantity for this item of work. Payment will be made only for the actual amount of work performed as authorized and deemed necessary by the Engineer. Bid Item No. C2 - Franchise Utility Coordination Measurement and Payment for "Franchise Utility Coordination" shall be per Force Account. To provide a common proposal for all bidders, the Contracting Agency has estimated the amount for "Franchise Utility Coordination" and entered the amount in the proposal to become a part of the total bid by the Contractor. Bid Item No. C3 -, Utility Potholing Measurement and Payment for "Utility Potholing" shall be by Force Account in accordance with Section 1-09.6. To provide a common proposal for all bidders, the Contracting Agency has estimated the amount for "Utility Potholing" and entered the amount in the proposal to become a part of the total bid by the Contractor. Bid Item No. C4 - Structure Excavation Class B Incl. Haul for Joint Trench (2-09) Measurement and payment for "Structure Excavation Class B Incl. Haul for Joint Trench" will be per cubic yard. "Structure Excavation Class B Incl. Haul for Joint Trench" shall be measured per cubic yard of excavation for the joint trench, vaults and handholes according to the requirements outlined in these special provision and Section 2-09. Neat line measurements will be used according to the minimum width determined from the typical underground conduit trench details shown in the plans. Bid Item No. C5 - Shoring or Extra Excavation Class B for Joint Trench (8-32) Measurement and payment for "Shoring or Extra Excavation Class B for Joint Trench" will be per square foot. The area for payment will be one vertical plane measured along the centerline of the trench, including Structures. Measurement will be made from the existing ground line to the bottom of the excavation and for the length of the Work actually performed. If the Contract includes a pay item for grading to remove materials, the upper limit for measurement will be the neat lines of the grading section shown in the Plans. The bottom elevation for measurement will be the bottom of the excavation as shown in the Plans or as otherwise established by the Engineer. The unit Contract price per square foot shall be full pay for all excavation, backfill, compaction, and other Work required when extra excavation is used in lieu of constructing shoring. If select backfill material is required for backfilling within the limits of the Structure excavation, it shall also be required as backfill material for the extra excavation at the Contractor's expense. CITY nF TI IKWII A WA SP- 23 Bid Item No. C6 — Joint Trench Pipe Zone Bedding Incl. Haul (8-32) Measurement and payment for "Joint Trench Pipe Zone Bedding Incl. Haul" will be per cubic yard. Neat line measurements will be used for the material according to the minimum width determined from the typical underground conduit trench details shown in the plans. Bid Item No. C7 — Joint Trench Backfill (8-32) Measurement and payment for "Joint Trench Backfill" will be per cubic yard. Neat line measurements will be used for the material according to the minimum width determined from the typical underground conduit trench details shown in the plans. Bid Item No. C8 — Install 444-LA Vault — Comcast (8-32) Measurement and payment for "Install 444-LA Vault — Comcast" shall be per each Comcast supplied 444-LA Vault installed by the Contractor. Payment shall include all labor, equipment and material (other than material specified as being provided by Comcast) necessary to complete the installation, including, but not limited to the following: coordination with Comcast for the receiving of utility provided materials, saw cutting, excavation, setting vault, placing and compacting backfill material, and adjusting lid to finished grade Bid Item No. C9 — Install Conduit Pipe 4 In. Diam. — Comcast (8-32) Measurement and payment for "Install 4-inch diameter conduit — Comcast" shall be per linear foot of Comcast supplied 4-inch diameter conduit installed by the Contractor. Payment shall include all labor, equipment and material (other than material specified as being provided by Comcast) necessary to complete the installation, including, but not limited to the following: coordination with Comcast for the receiving of utility provided materials, mandrel, sweeps, glue, primer, marker tape, conduit spacers, conduit chairs, cleaning and proofing conduits. Bid Item No. C10 — Conduit Riser, 4 In. - Comcast (8-32) Measurement and payment for "Conduit Riser, 4 In. - Comcast" shall be per each. "Conduit Riser, 4 In. - Comcast" shall include all work and materials required to furnish and install the complete riser, including all conduit, fittings, conduit spacers, clamps and hardware from 10 feet above ground to and including the 90-degree rigid steel bend underground. Material such as conduit spacers, conduit chairs, pole riser brackets, mandrel, glue and primer are incidental. Bid Item No. C11 — Install H1730H Handhole — Century Link (8-32) Measurement and payment for "Install H1730H Handhole — Century Link" shall be per each Century Link supplied H1730H Handhole installed by the Contractor. Payment shall include all labor, equipment and material (other than material specified as being provided by Century Link) necessary to complete the installation, including, but not limited to the following: coordination with Century Link for the receiving of utility provided materials, saw cutting, excavation, setting handhole, placing and compacting backfill material, and adjusting lid to finished grade. SP- 24 Bid Item No. C12 - Install 264-TA Vault - Century link (8-32) Measurement and payment for "Install 264-TA Vault - Century link" shall be per each Century Link supplied 264-TA vault; installed by the Contractor. Payment shall include all labor, equipment and material (other than material specified as being provided by Century Link) necessary to complete the installation, including, but not limited to the following: coordination with Century Link for the receiving of utility provided materials, saw cutting, excavation, setting vault, placing and compacting backfill material, and adjusting lid to finished grade . Bid Item No. C13 - Install Conduit Pipe 4 In. Diam. - Century Link (8-32) Measurement and payment for "Install 4-inch diameter conduit - Century Link" shall be per linear foot of Century Link supplied 4-inch diameter conduit installed by the Contractor. Payment shall include all labor, equipment and material (other than material specified as being provided by Century Link) necessary to complete the installation, including, but not limited to the following: coordination with Century Link for the receiving of utility provided materials, mandrel, sweeps, glue, primer, marker tape, conduit spacers, conduit chairs, cleaning and proofing conduits. Bid Item No. C14 - Core Drill of Existing Vault - Century Link Measurement and payment for "Core Drill of Existing Vault - Century Link" shall be per each "Core Drill of Existing Vault - CenturyLink" will be measured per each conduit entering vault. Bid Item No. C15 - Install 444-LA Vault - Zayo (8-32) (8-32) Measurement and payment for "Install 444-LA Vault - ZAYO" shall be per each ZAYO supplied 444-LA Vault installed by the Contractor. Payment shall include all labor, equipment and material (other than material specified as being provided by ZAYO) necessary to complete the installation, including, but not limited to the following: coordination with ZAYO for the receiving of utility provided materials, saw cutting, excavation, setting vault, placing and compacting backfill material, and adjusting lid to finished grade Bid Item No. C16 - Install Conduit Pipe 4 In. Diam. - Zayo (8-32) Measurement and payment for "Install 4-inch diameter conduit - ZAYO" shall be per linear foot of ZAYO supplied 4-inch diameter conduit installed by the Contractor. Payment shall include all labor, equipment and material (other than material specified as being provided by ZAYO) necessary to complete the installation, including, but not limited to the following: coordination with ZAYO for the receiving of utility provided materials, mandrel, sweeps, glue, primer, marker tape, conduit spacers, conduit chairs, cleaning and proofing conduits. Bid Item No. C17 - Structure Excavation Class B Incl. Haul for SCL Duct Bank (8-33) Measurement and payment for "Structure Excavation Class B Incl. Haul for SCL Duct Bank" will be per cubic yard. "Structure Excavation Class B Incl. Haul for SCL Duct Bank" shall be measured per cubic yard of excavation for the SCL Electrical Duct Bank and vaults according to the requirements outlined in these special provision and WSDOT Standard Specification Section 2-09. Neat line measurements will be !`ITV ( TI II[IA/II A WA SP- 25 used according to the minimum width determined from the typical underground conduit trench details shown in the plans. Bid Item No. C18 — Shoring or Extra Excavation Class B for SCL Duct Bank (8-33) Measurement and payment for "Shoring or Extra Excavation Class B for SCL Duct Bank" shall be per square foot. The area for payment shall be one vertical plane measured along the centerline of the trench, including Structures. Measurement shall be made from the existing ground line to the bottom of the excavation and for the length of the Work actually performed. If the Contract includes a pay item for grading to remove materials, the upper limit for measurement shall be the neat lines of the grading section shown in the Plans. The bottom elevation for measurement shall be the bottom of the excavation as shown in the Plans or as otherwise established by the Engineer. The unit Contract price per square foot shall be full pay for all excavation, backfill, compaction, and other Work required when extra excavation is used in lieu of constructing shoring. If select backfill material is required for backfilling within the limits of the Structure excavation, it shall also be required as backfill material for the extra excavation at the Contractor's expense. Bid Item No. C19 — Handhole, 233-LA — SCL (8-33) Measurement and payment for "Handhole, 233-LA — SCL" shall be per each Contractor supplied 233- LA Handhole installed by the Contractor. Handhole shall be SCL stock number 720388 as shown in Seattle City Light Material Standard 7203.08. Payment shall include all labor, equipment and material necessary to complete the installation, including, but not limited to the following: saw cutting, excavation, setting vault, placing and compacting backfill material, and adjusting lid to finished grade Bid Item No. C20 — Vault, 444-LA — SCL (8-33) Measurement and payment for "Handhole, 444-LA — SCL" shall be per each Contractor supplied 444- LA Handhole installed by the Contractor. Vault shall be SCL stock number 013120 as shown in Seattle City Light Material Standard 7203.26. Payment shall include all labor, equipment and material necessary to complete the installation, including, but not limited to the following: saw cutting, excavation, setting vault, placing and compacting backfill material, and adjusting lid to finished grade Bid Item No. C21 — Vault, 507-LA — SCL (8-33) Measurement and payment for "Vault, 507-LA — SCL" shall be per each Contractor supplied 507-LA Vault installed by the Contractor. Vault shall be SCL stock number 013169 as shown in Seattle City Light Material Standard 7203.36 Payment shall include all labor, equipment and material necessary to complete the installation, including, but not limited to the following: saw cutting, excavation, setting vault, placing and compacting backfill material, and adjusting lid to finished grade SP- 26 Bid Item No. C22 — Vault, 557-LA — SCL (8-33) Measurement and payment for "Vault, 557-LA — SCL" shall be per each Contractor supplied 557-LA Vault installed by the Contractor. Vault shall be SCL stock number 013125 as shown in Seattle City Light Material Standard 7203.41 Payment shall include all labor, equipment and material necessary to complete the installation, including, but not limited to the following: saw cutting, excavation, setting vault, placing and compacting backfill material, and adjusting lid to finished grade Bid Item No. C23 — Vault, 712-LA — SCL (8-33) Measurement and payment for "Vault, 712- LA — SCL" shall be per each Contractor supplied 712-CLX Vault installed by the Contractor. Vault shall be SCL. stock number 013117 as shown in Seattle City Light Material Standard 7203.46 Payment shall include all labor, equipment and material necessary to complete the installation, including, but not limited to the following: saw cutting, excavation, setting vault, placing and compacting backfill material, and adjusting lid to finished grade Bid Item No. C24 — Vault, 712-CLX — SCL (8-33) Measurement and payment for "Vault, 712- CLX — SCL" shall be per each Contractor supplied 712-CLX Vault installed by the Contractor. Vault shall be SCL stock number 013119 as shown in Seattle City Light Material Standard 7203.46 Payment shall include all labor, equipment and material necessary to complete the installation, including, but not limited to the following: saw cutting, excavation, setting vault, placing and compacting backfill material, and adjusting lid to finished grade Bid Item No. C25 — Vault, Pad 10 — SCL (8-33) Measurement and payment for "Vault, Pad 10 — SCL" shall be per each Contractor supplied Pad 10 Vault installed by the Contractor. Vault shall be Oldcastle Precast Transformer Pad 10. Payment shall include all labor, equipment and material necessary to complete the installation, including, but not limited to the following: saw cutting, excavation, setting vault, placing and compacting backfill material, and adjusting lid to finished grade Bid Item No. C26 — Conduit, PVC 4 Inch — SCL (8-33) Measurement and payment for "Conduit Pipe 4 In. Diam. — SCL" shall be per linear foot. Payment shall include all labor, equipment and material necessary to complete the installation, including, but not limited to the following: coordination with SCL regarding mandrel, sweeps, glue, primer, marker tape, conduit spacers, conduit chairs, cleaning and proofing conduits. Note — Rigid Steel Bends are paid for separately. f`1TV AC Till/IA/II A to/A SP- 27 Bid Item No. C27 — Conduit, Fiberglass 5 Inch — SCL (8-33) Measurement and payment for "Conduit Pipe 5 In. Diam. — SCL" shall be per linear foot including both straight segments and bends. Payment shall include all labor, equipment and material necessary to complete the installation, including, but not limited to the following: coordination with SCL regarding mandrel, sweeps, glue, primer, marker tape, conduit spacers, conduit chairs, cleaning and proofing conduits. Bid Item No. C28 — Conduit Bend, RGS, 4 Inch, Misc. Degree, 144" or 150" Radius — SCL (8-33) Measurement and payment for "Conduit Bend, RGS, 4 Inch, Misc. Degree, 144" or 150" Radius — SCL" shall be per each. Measurement for "Conduit Bend, RGS, 4 Inch, Misc. Degree, 144" or 150" Radius — SCL" shall be by each complete bend. A complete bend of conduit shall include the entire curved section between two straight sections of conduits and may include more than one section of conduit to complete the curve. Payment for "Conduit Bend, RGS, 4 Inch, Misc. Degree, 144" or 150" Radius — SCL" shall include all costs for the work required to furnish and install the complete bend as specified. Bid Item No. C29 — Conduit Bend, RGS, 4 Inch, Misc. Degree, 48" Radius — SCL (8-33) Measurement and payment for "Conduit Bend, RGS, 4 Inch, Misc. Degree, 48" Radius — SCL" shall be per each. Measurement for "Conduit Bend, RGS, 4 Inch, Misc. Degree, 48" Radius — SCL" shall be by each complete bend. A complete bend of conduit shall include the entire curved section between two straight sections of conduits and may include more than one section of conduit to complete the curve. Payment for "Conduit Bend, RGS, 4 Inch, Misc. Degree, 48" Radius — SCL" shall include all costs for the work required to furnish and install the complete bend as specified. Bid Item No. C30 — Conduit Riser, 4 In. — SCL (8-33) Measurement and payment for "Conduit Riser, 4 In. - SCL" shall be per each. "Conduit Riser, 4 In. - SCL" shall include all work and materials required to furnish and install the complete riser, including all conduit, fittings, conduit spacers, clamps and hardware from 10 feet above ground to and including the 90-degree rigid steel bend underground. Material such as conduit spacers, conduit chairs, pole riser brackets, mandrel, glue and primer are incidental. Bid Item No. C31 — Conduit Riser, 5 In. — SCL (8-33) Measurement and payment for "Conduit Riser, 5 In. - SCL" shall be per each. "Conduit Riser, 5 In. - SCL" shall include all work and materials required to furnish and install the complete riser, including all conduit, fittings, conduit spacers, clamps and hardware from 10 feet above ground to and including the 90-degree rigid steel bend underground. Material such as conduit spacers, conduit chairs, pole riser brackets, mandrel, glue and primer are incidental. SP- 28 Bid Item No. C32 — Core Drill of Existing Vault — SCL Measurement and payment for "Core Drill of Existing Vault — SCL" shall be per each "Core Drill of Existing Vault — SCL" will be measured per each conduit entering vault. Bid Item No. C33 — High Strength FTB — SCL (8-33) (8-33) Measurement and payment for "High Strength-FTB — SCL" shall be per neat line cubic yard of encased electrical duct conduit. Neat line measurements will be used according to the minimum width and depth determined from the typical underground conduit trench details shown in the plans. Bid Item No. C34 — Low Strength FTB — SCL (8-33) Measurement and payment for "Low Strength-FTB — SCL" shall be measured per neat line cubic yard of backfill above the High Strength-FTB encased electrical duct conduit. Neat line measurements will be used according to the minimum width and depth determined from the typical underground conduit trench details shown in the plans. Bid Item No. C35 — Guard Post (Bollard) (8-33) Measurement and payment for "Guard Post (Bollard)" shall be measured per each. Bid Item No. C36 — Install Conduit Pipe 2 In. Diam. — Comcast Private Service Measurement and payment for "Install Conduit Pile 2 In. Diam. — Comcast Private Service" shall be per linear foot of Comcast supplied 2-inch diameter conduit installed by the Contractor. Payment shall include all labor, equipment and material (other than material specified as being provided by Comcast) necessary to complete the installation, including, but not limited to the following: coordination with Comcast for the receiving of provided materials, connecting to vaults, installing the PVC Conduit and PVC Bends, sweeps, conduit spacers, conduit chairs, cleaning and proofing conduits, mandrel, glue and primer. Bid Item No. C37 — Install Conduit Pipe 2 In. Diam. — Century Link Private Service (8-34) Measurement and payment for "Install Conduit Pile 2 In. Diam. — Century Link Private Service" shall be per linear foot of Century Link supplied 2-inch diameter conduit installed by the Contractor. Payment shall include all labor, equipment and material (other than material specified as being provided by Century Link) necessary to complete the installation, including, but not limited to the following: coordination with Century Link for the receiving of provided materials, connecting to vaults, installing the PVC Conduit and PVC Bends, sweeps, conduit spacers, conduit chairs, cleaning and proofing conduits, mandrel, glue and primer. Bid Item No. C38 — Conduit Pipe 3 In. Diam. — SCL Private Service (8-34) Measurement and payment for "Conduit Pipe 3 In. Diam. — SCL Private Services" shall include all labor, equipment and material to install Contractor supplied conduit including, but not limited to the following: saw cutting, connecting to vaults, installing the PVC Conduit and PVC Bends, sweeps, conduit spacers, conduit chairs, cleaning and proofing conduits, mandrel, glue and primer. Bid Item No. C39 to C59 — Private Service Address (8-34) Measurement and payment for Private Services Address , will be by lump sum. SP- 1 DIVISION 10 - MEASUREMENT AND PAYMENT - UNIT PRICE BID GENERAL When the Contract Documents state that a certain item of work "shall be considered incidental to the Contract", and whenever any aspect of work is not included in one of the pay items listed below, then the cost of performing that work shall be included in the various bid prices of the Contract, and no separate payment will be made. Contractor shall include all costs of doing this work within the unit and lump sum bid prices in the Proposal. If the Contract Documents require work that has no unit or lump sum bid item in the proposal, costs shall be incidental and included within the other unit and lump sum bid prices in the Proposal. For items listed below as being paid by "Force Account", to provide a common basis for all bidders, the City has estimated and included in the Proposal, dollar amounts for those items. All such dollar amounts are to become a part of Contractor's total bid. However, the City does not warrant expressly or by implication, that the actual amount of work will correspond with those estimates. Payment will be made on the basis of the amount of work actually authorized by Engineer, in accordance with Section 1-09.6 of the Standard Specifications. BID SCHEDULE ITEMS The following subsections correspond to the items on the bid schedule and shall be paid based on the conditions listed, and as detailed in the Standard Specifications for that item. The Section where the item of work is discussed in the Standard Specifications and/or Special Provisions is shown in parentheses. BID SCHEDULE A - ROADWAY Bid Item No. Al — Mobilization (1-09) Measurement and Payment for "Mobilization" shall be per lump sum. The lump sum contract price for "Mobilization" shall be full compensation for providing, furnishing, and installing all work and materials necessary to: 1. move or organize equipment and personnel onto and off of the site 2. provide and maintain support facilities 3. clean up the site at the conclusion of the project 4. obtain all necessary permits, licenses, and bonds The lump sum price for Mobilization shall also include all costs associated with remobilization following any suspension of work. Delete the second paragraph and subsequent list of Section 1-09.7 of the Standard Specifications and replace them with the following: Based on the lump sum contract price for "Mobilization," partial payments will be made as follows: 1. When 10 percent of the total original contract amount is earned from other contract items, excluding amounts paid for materials on hand, 60 percent of the amount bid for SP- 2 mobilization, or 10 percent of the total original contract amount, whichever is the least, will be paid. 2. When the substantial completion date has been established for the project, any remaining amount bid for mobilization will be paid. Bid Item No. A2 - Resolution of Utility Conflicts (1-09) Measurement and payment for "Resolution of Utility Conflicts" shall be by force account per Section 1- 09.6 of the Standard Specifications. For the purposes of bidding equality, the Contracting Agency has furnished an estimated quantity for this item of work. Payment will be made only for the actual amount of work performed as authorized and deemed necessary by the Engineer. Bid Item No. A3 — Field Office Building (1-09) Measurement and Payment for "Field Office Building" shall be per lump sum. The lump sum contract price for "Field Office Building" shall be full pay for furnishing, installing, maintaining, and removing the facility, including all costs associated with all required utility hook-ups and disconnects, and monthly utility charges for all utilities except telephone. No progress payments will be made of any sort until the field office is completely set up as described herein. The monthly telephone costs will be paid by the Contracting Agency. Bid Item No. A4 — Type B Progress Schedule Measurement and Payment for "Type B Progress Schedule" shall be per lump sum. The minimum bid for "Type B Progress Schedule" shall be $5000 (1-08) 20% of the lump sum item "Type B Progress Schedule" will be measured and paid upon review and approval of the initial baseline schedule. The remaining 80% will be measured and paid by pro -rating with the charged working days. Bid Item No. A5 — Minor Change (1-04) Measurement and payment for "Minor Change" shall be by force account per Section 1-09.6 of the Standard Specifications. For the purposes of bidding equality, the Contracting Agency has furnished an estimated quantity for this item of work. Payment will be made only for the actual amount of work performed as authorized and deemed necessary by the Engineer. Bid Item No A6 — Record Drawings Measurement andl Payment for "Record Drawings" shall be per lump sum. The minimum bid for "Record Drawings" shall be $5000. (1-05) Payment for this item will be made on a prorated monthly basis for work completed in accordance with this section up to 75% of the lump sum bid. The final 25% of the lump sum item will be paid upon submittal and approval of the completed Record Drawings set prepared in conformance with these Special Provisions. CITY AF TIIKWII A WA SP- 3 Bid Item No. A7 — Roadway Surveying (1-05) Measurement and Payment for "Roadway Surveying" shall be per lump sum. The lump sum contract price for "Roadway Surveying" shall be full pay for all labor, equipment, materials, and supervision utilized to perform the Work specified, including any resurveying, checking, correction of errors, replacement of missing or damaged stakes, and coordination efforts. Bid Item No. A8 — Utility Potholing Measurement and payment for "Utility Potholing" shall be by force account per Section 1- 09.6 of the Standard Specifications. Bid Item No. A9— Flaggers and Spotters Measurement and Payment for "Flaggers and Spotters" shall be per hour. The minimum bid for "Flaggers and Spotters" shall be $50.00 per hour. Bid Item No. A10 — Other Traffic Control Labor Measurement and Payment for "Other Traffic Control Labor" shall be per hour. The minimum bid for "Other Traffic Control Labor" shall be $50.00 per hour. Bid Item No. All — Traffic Control Supervisor Measurement and Payment for "Traffic Control Supervisor" shall be per hour. The minimum bid for "Traffic Control Supervisor" shall be $50.00 per hour. Bid Item No. Al2 — Construction Signs Class A Measurement and Payment for "Construction Signs Class A" shall be per Square Foot. Bid Item No. A13 — Sequential Arrow Sign Measurement and Payment for "Sequential Arrow Sign" shall be per Hour. Bid Item No. A14 — Portable Changeable Message Sign Measurement and Payment for "Portable Changeable Message Sign" shall be per Hour. Bid Item No. A15 — Outside Agency Uniformed Police Flagging Labor (1-07) (1-10) (1-10) (1-10) (1-10) (1-10) (1-10) (1-10) Measurement and payment for "Outside Agency Uniformed Police Flagging Labor" shall be by force account per Section 1-09.6 of the Standard Specifications. For the purposes of bidding equality, the Contracting Agency has furnished an estimated quantity for this item of work. Payment will be made only for the actual amount of work performed as authorized and deemed necessary by the Engineer. Bid Item No. A16 — Clearing and Grubbing (2-01) Measurement and Payment for "Clearing and Grubbing" shall be per acre. SP- 4 Arborists services shall be included in the per acre measurement of clearing and grubbing. Bid Item No. A17 — Roadside Cleanup (2-01) Measurement and Payment for "Roadside Cleanup" shall be by Force Account in accordance with Section 1-09.6. For the purposes of bidding equality, the Contracting Agency has furnished an estimated quantity for this item of work. Payment will be made only for the actual amount of work performed as authorized and deemed necessary by the Engineer. Bid Item No. A18 — Remove Existing Drainage Structure Measurement and payment for "Remove Existing Drainage Structure" will be per each. Bid Item No. A19 — Remove Existing Storm Sewer Pipe (2-02) (2-02) Measurement and payment for "Remove Existing Storm Sewer Pipe" will be measured by the linear foot. Bid Item No. A20 — Removal of Structures and Obstructions (2-02) Measurement and Payment for "Removal of Structures and Obstructions" shall be per lump sum. The lump sum Bid price shall include, but not necessarily be limited to: All necessary materials, labor, equipment, and tools necessary to complete the work identified herein or on the Plans including abandoning or removing, hauling, and disposing of the material off site at a Contractor -obtained legal disposal site including but not limited all items identified on the Plans, specified herein, or required for installation of improvement for which a separate Bid item has not been included in the Proposal. Backfill of voids after demolition activities shall be measured and paid for as "Gravel Borrow Incl. Haul". If pavements, sidewalks, curbs, or gutters lie within an excavation area, their removal will be paid for as part of the quantity removed in excavation. Bid Item No. A21 — Removal and Relocation of Existing Private Improvements (2-02) Measurement and Payment for "Removal and Relocation of Existing Private Improvements" shall be by Force Account in accordance with Section 1-09.6. For the purposes of bidding equality, the Contracting Agency has furnished an estimated quantity for this item of work. Payment will be made only for the actual amount of work performed as authorized and deemed necessary by the Engineer. Bid Item No. A22 — Pavement Sawcutting (2-02) Measurement and payment for "Pavement Sawcutting" will be by the linear foot. Bid Item No. A23 — Remove Hydrant Measurement and payment for "Remove Hydrant" will be per each and shall include removing existing hydrant lateral tee from the main. rITV nF TI IKWII ewe SP- 5 Bid Item No. A24 — Roadway Excavation Incl. Haul (2-03) Measurement and payment for "Roadway Excavation Incl. Haul" will be per cubic yard. If pavements, sidewalks, curbs, or gutters lie within an excavation area, their removal will be paid for as part of the quantity removed in excavation. Bid Item No. A25 — Gravel Borrow Incl. Haul (2-03) Measurement and payment for "Gravel Borrow Incl. Haul" will be per cubic yard. When used in trench backfill or backfill around structure the measurement and payment will be per cubic yard by the excavation limit neat line. Bid Item No. A26 — Shoring or Extra Excavation Class B (2-09) Measurement and payment for "Shoring or Extra Excavation Class B" will be per square foot. The area for payment will be one vertical plane measured along the centerline of the trench, including Structures. Measurement will be made from the existing ground line to the bottom of the excavation and for the length of the Work actually performed. If the Contract includes a pay item for grading to remove materials, the upper limit for measurement will be the neat lines of the grading section shown in the Plans. The bottom elevation for measurement will be the bottom of the excavation as shown in the Plans or as otherwise established by the Engineer. The unit Contract price per square foot shall be full pay for all excavation, backfill, compaction, and other Work required when extra excavation is used in lieu of constructing shoring. If select backfill material is required for backfilling within the limits of the Structure excavation, it shall also be required as backfill material for the extra excavation at the Contractor's expense. Bid Item No. A27 — Structure Excavation Class A Incl. Haul Measurement and payment for "Structure Excavation Class A Incl. Haul" will be per cubic yard. Bid Item No. A28 — Construction Geotextile for Permanent Erosion Control (2-09) (2-12) Measurement and payment for "Construction Geotextile for Permanent Erosion Control" will be by the square yard for the ground surface area actually covered. Bid Item No. A29 — Construction Geotextile for Separation (2-12) Measurement and payment for "Construction Geotextile for Separation" will be per square yard for the ground surface area actually covered. Bid Item No. A30 — Construction Geotextile for Underground Drainage (2-12) Measurement and payment for "Construction Geotextile for Underground Drainage" will be per square yard for the ground surface area actually covered. Bid Item No. A31 — Crushed Surfacing Top Course (4-04) Measurement and payment for "Crushed Surfacing Top Course" will be per ton. SP- 6 Bid Item No. A32 — Crushed Surfacing Base Course Measurement and payment for "Crushed Surfacing Base Course" will be per ton. Bid Item No. A33 — Ballast Measurement and payment for "Ballast" will be per cubic yard. (4-04) (4-04) Bid Item No. A34 — HMA CI.'/2-inch PG 64-22 (5-04) Measurement and payment for "HMA Cl. '/z-inch PG 64-22 (Class B)" will be per ton in accordance with Section 1-09.2, with no deduction being made for the weight of asphalt binder, mineral filler, or any other component of the mixture. If the Contractor elects to remove and replace mix as allowed by Section 5- 04.3(11), the material removed will not be measured. Bid Item No. A35 — HMA Cl. 1-inch PG 64-22 (5-04) Measurement and payment for "HMA Cl. 1-inch PG 64-22 (Class B)" will be per ton in accordance with Section 1-09.2, with no deduction being made for the weight of asphalt binder, mineral filler, or any other component of the mixture. If the Contractor elects to remove and replace mix as allowed by Section 5- 04.3(11), the material removed will not be measured. Bid Item No. A36 — Pavement Repair Excavation Including Haul (5-04) Measurement and payment for "Pavement Repair Excavation Incl. Haul" will be per square yard of surface marked prior to excavation. Bid Item No. A37 — HMA for Pavement Repair CI.'/Z-inch PG 64-22 (5-04) Measurement and payment for "HMA for Pavement Repair Cl. 'h-inch PG 64-22" will be per ton in accordance with Section 1-09.2, with no deduction being made for the weight of asphalt binder, mineral filler, or any other component of the mixture. If the Contractor elects to remove and replace mix as allowed by Section 5-04.3(11), the material removed will not be measured. Bid Item No. A38 — Cement Concrete Pavement (5-05) Measurement and payment for "Cement Concrete Pavement" will be per cubic yard. Bid Item No. A39 — Single Sloped Concrete Barrier (6-10) Measurement andl payment for "Single Sloped Concrete Barrier" will be per linear foot. The unit Contract price per linear foot for "Single Slope Concrete Barrier" shall be full pay for either cast - in -place or precast single slope concrete barrier. Bid Item No. A40 — Gravel Backfill for Drain (7-01) Measurement and payment for "Gravel Backfill for Drain" will be per cubic yard measured by the volume placed within the neatline limits of Structure excavation Class B. Bid Item No. A41 — Underdrain Pipe 6 In. Diam. (7-01) Measurement and payment for "Underdrain Pipe 6 In. Diam." will be per linear foot. rITV (IF TI IKWII A WA SP- 7 The length of underdrain pipe will be the number of linear feet of completed installation measured along the invert. Pipe placed in excess of the length designated by the Engineer will not be measured or paid for. Bid Item No. A42 — Underdrain Pipe 8 In. Diam. (7-01) Measurement and payment for "Underdrain Pipe 8 In. Diam." will be per linear foot. The length of underdrain pipe will be the number of linear feet of completed installation measured along the invert. Pipe placed in excess of the length designated by the Engineer will not be measured or paid for. Bid Item No. A43 — Drain Pipe 6 In. Diam. (7-01) Measurement and payment for "Drain Pipe 6 In. Diam." will be per linear foot. The length of drain pipe will be the number of linear feet of completed installation measured along the invert. Pipe placed in excess of the length designated by the Engineer will not be measured or paid for. Bid Item No. A44 — Drain Pipe 8 In. Diam. (7-01) Measurement and payment for "Drain Pipe 8 In. Diam." will be per linear foot. The length of drain pipe will be the number of linear feet of completed installation measured along the invert. Pipe placed in excess of the length designated by the Engineer will not be measured or paid for. Bid Item No. A45 — Testing Storm Sewer Pipe Measurement and payment for "Testing Storm Sewer Pipe" will be per linear foot. The length of testing storm sewer pipe in conformance with Section 7-17.3(2)A will linear feet of completed installation actually tested. Bid Item No. A46 through A49 — Corrugated Polyethylene Storm Sewer Pipe Measurement and payment for "Corrugated Polyethylene Storm Sewer Pipe _ In. linear foot. (7-04) be the number of In. Diam. (7-04) Diam." will be per The length of storm sewer pipe will be the number of linear feet of completed installation measured along the invert and will include the length through elbows, tees, and fittings. The number of linear feet will be measured from the center of manhole to center of manhole or to the inside face of catch basins and similar type Structures. All costs associated with furnishing and installing bedding and backfill with native material within the pipe zone in the installation of pipe shall be included in the unit contract price. Bid Item No. A50 — Cl. V Reinf. Conc. Storm Sewer Pipe 30 In. Diam. (7-04) Measurement and payment for "Cl. V Reinf. Conc. Storm Sewer Pipe 24 In. Diam." will be per linear foot. The length of storm sewer pipe will be the number of linear feet of completed installation measured along the invert and will include the length through elbows, tees, and fittings. The number of linear feet will be measured from the center of manhole to center of manhole or to the inside face of catch basins and similar type Structures. SP- 8 All costs associated with furnishing and installing bedding and backfill with native material within the pipe zone in the installation of pipe shall be included in the unit contract price. Bid Item No. A51 through A53 — Ductile Iron Storm Sewer Pipe _ In. Diam. (7-04) Measurement and payment for "Ductile Iron Storm Sewer Pipe In. Diam." will be per linear foot. The length of storm sewer pipe will be the number of linear feet of completed installation measured along the invert and will include the length through elbows, tees, and fittings. The number of linear feet will be measured from the center of manhole to center of manhole or to the inside face of catch basins and similar type Structures. All costs associated with furnishing and installing bedding and backfill with native material within the pipe zone in the installation of pipe shall be included in the unit contract price. Bid Item No. A54 — Adjust Catch Basin (7-05) Measurement and payment for "Adjust Catch Basin" will be per each. The unit contract price per each for "Adjust Catch Basin" shall be full pay for all costs necessary to make the adjustment including restoration of adjacent areas in a manner acceptable to the Engineer. Bid Item No. A55 — Concrete Inlet (7-05) Measurement and payment for "Concrete Inlet" shall be per each. All costs associated with furnishing and installing gravel backfill for bedding inlets shall be included in the unit Contract price for the item installed. Bid Item No. A56 — Catch Basin Type 1 (7-05) Measurement and payment for "Catch Basin Type 1" shall be per each. All costs associated with furnishing and installing gravel backfill for bedding catch basins shall be included in the unit Contract price for the item installed. Bid Item No. A57 — Catch Basin Type 1 with Circular Frame and Cover (7-05) Measurement and payment for "Catch Basin Type 1 with Circular Frame and Cover" shall be per each. All costs associated with furnishing and installing gravel backfill for bedding catch basins shall be included in the unit Contract price for the item installed. Bid Item No. A58 — Catch Basin Type 1 L (7-05) Measurement and payment for "Catch Basin Type 1 L" shall be per each. All costs associated with furnishing and installing gravel backfill for bedding catch basins shall be included in the unit Contract price for the item installed. Bid Item No. A59 — Catch Basin Type 2, 48 In. Diam. (7-05) Measurement and payment for "Catch Basin Type 2 48 In. Diam." shall be per each. All costs associated with furnishing and installing gravel backfill for bedding catch basins shall be included in the unit Contract price for the item installed. rITV AF TI IVWll A WA SP- 9 Bid Item No. A60 — Catch Basin Type 2, 54 In. Diam. With Flow Restrictor (7-05) Measurement and payment for "Catch Basin Type 2 54 In. Diam. With Flow Restrictor" shall be per each. All costs associated with furnishing and installing gravel backfill for bedding catch basins shall be included in the unit Contract price for the item installed. Bid Item No. A61 — Detention Vault (7-05) Measurement and payment for "Detention Vault" shall be per Lump Sum. The lump sum contract price for "Stormwater Detention Vault" shall be full pay for furnishing all labor, tools, equipment, and materials necessary to complete the installation of the vauk according to the Plans and Specifications. The work including excavation, temporary structural shoring, dewatering (if required), foundation materials, vault installation, granular material backfill, compaction, connection to storm drains, testing and cleaning, and submittals and furnishing and placing of all accessories and hardware items. Bid Item No. A62 — Connection to Drainage Structure Measurement and payment for "Connection to Drainage Structure" shall be per each. Bid Item No. A63 — Structure Excavation Class B Incl. Haul Measurement and payment for "Structure Excavation Class B Incl. Haul" will be per cubic yard. Bid Item No. A64 — Abandon and Fill Pipe Measurement and payment for "Abandon and Fill Pipe" shall be per linear foot. Bid Item No. A65 — Through Curb Inlet Measurement and payment for "Through Curb Inlet" shall be per each. All costs associated with furnishing and installing the casting and adjustment to finish grade. Bid Item No. A66 — Hydrant Assembly Measurement and payment for "Hydrant Assembly" shall be per each. (7-05) (7-05) (7-05) (7-05) (7-14) The unit Contract price per each for "Hydrant Assembly" shall be full pay for all Work to furnish and install fire hydrant assemblies, including hydrant body, tapping tees and piping connection to the water main, all costs for auxiliary gate valve, shackles, tie rods, concrete blocks, gravel, and painting required for the complete installation of the hydrant assembly as specified. Bid Item No. A67 — Resetting Existing Hydrant (7-14) Measurement and payment for "Resetting Existing Hydrant" shall be per each. The unit Contract price per each for "Resetting Existing Hydrant" shall be full pay for all Work to reset the existing hydrant, including excavation, backfill, shackling, painting, and reconnecting to the main. Bid Item no. A68— Stormwater Pre -Treatment Unit A (7-21) Measurement and payment for "Stormwater Pre -Treatment Unit A" shall be per lump sum. SP- 10 The lump sum contract prices for "Stormwater Pre-treatment Unit A" shall be full pay for furnishing all labor, tools, equipment, and materials necessary to complete each system according to the Plans and Specifications, including removal of existing utilities, dewatering (if required), foundation material, bedding, compaction, connections to storm drains, top slab, surface restoration, testing and cleaning, submittals, and furnishing and placing of all accessories and hardware items. "Structure Excavation Class B Incl. Haul" and "Shoring or Extra Excavation Class B for Stormwater Pre -Treatment Unit A" shall be paid as specified in 2-09.5. Bid Item no. A69 - Stormwater Treatment Unit B (7-21) Measurement and payment for "Stormwater Treatment Unit B" shall be per lump sum. The lump sum contract prices for "Stormwater Treatment Unit B" shall be full pay for furnishing all labor, tools, equipment, and materials necessary to complete each system according to the Plans and Specifications, including removal of existing utilities, dewatering (if required), foundation material, bedding, compaction, connections to storm drains, top slab, surface restoration, testing and cleaning, submittals, and furnishing and placing of all accessories and hardware items. Bid Item no. A70 - Stormwater Treatment Unit C (7-21) Measurement and payment for "Stormwater Treatment Unit C" shall be per lump sum. The lump sum contract prices for "Stormwater Treatment Unit C" shall be full pay for furnishing all labor, tools, equipment, and materials necessary to complete each system according to the Plans and Specifications, including removal of existing utilities, dewatering (if required), foundation material, bedding, compaction, connections to storm drains, top slab, surface restoration, testing and cleaning, submittals, and furnishing and placing of all accessories and hardware items. Bid Item No. A71 - SWPPP Preparation and General Permit Compliance (8-01) Measurement and payment for "SWPPP Preparation and General Permit Compliance" shall be per lump sum. The lump sum contract price for the "SWPPP and Permit Compliance" shall be full pay for all costs associated with complying with the Special and General Conditions of the General Permit; including creating, submitting, modifying and maintaining the SWPPP; design and submittal of erosion and sediment control BMPs; providing, maintaining on site the standby equipment and materials to comply with the General Permit; providing all stormwater monitoring and reporting, and other specified SPPPP requirements. Bid Item No. A72 - Portable Storage Tanks (8-01) Measurement and payment for "Portable Storage Tank" shall be per lump sum. The lump sum contract price for the "Portable Storage Tank" shall be full pay for all cost associated with mobilization, installation, operation, maintenance, and demobilization of the storage tank system including the necessary pipes, and pumps to convey water to the tanks and discharges from the tanks. Bid Item No. A73 - ESC Lead (8-01) Measurement and payment for "ESC Lead" shall be per Day. Payment for "ESC lead" will be measured per day for each day that an inspection is made and a report is filed. "sr/ Ar TI IIdIIIIII A IIIIA SP- 11 Bid Item No. A74 — Erosion/Water Pollution Control (8-01) Measurement and Payment for "Erosion/Water Pollution Control" shall be by Force Account in accordance with Section 1-09.6. To provide a common Proposal for all Bidders, the Contracting Agency has entered an amount in the Proposal to become a part of the Contractor's total Bid "Erosion/Water Pollution Control" shall include Maintenance and removal of erosion and water pollution control devices including removal and disposal of sediment, stabilization and rehabilitation of soil disturbed by these activities, and any additional Work deemed necessary by the Engineer to control erosion and water pollution. Bid Item No. A75 — High Visibility Fence Measurement and Payment for "High Visibility Fence" shall be by linear foot. Fencing will be measured by the linear foot along the ground line of the completed fence. Bid Item No. A76 — Silt Fence Measurement and Payment for "Silt Fence" shall be by linear foot. Fencing will be measured by the linear foot along the ground line of the completed fence. Bid Item No. A77 — Check Dam Measurement and Payment for "Check Dam" shall be by linear foot. (8-01) (8-01) (8-01) Check dams will be measured per linear foot one time only along the completed check dam. No additional measurement will be made for check dams that are required to be rehabilitated or replaced due to wear. Bid Item No. A78 — Inlet Protection Measurement and Payment for "Inlet Protection" shall be per each. Inlet protection will be measured per each for each initial installation at a drainage Structure. Bid Item No. A79 — Biodegradable Erosion Control Blanket (8-01) (8-01) Measurement and Payment for "Biodegradable Erosion Control Blanket" shall be per square yard. Bid Item No. A80— Topsoil Type A (4" Depth) (8-02) Measurement and payment for "Topsoil Type A (4" Depth)" shall be per acre. Where "Topsoil Type A (4" Depth)" is called for in the plans, Topsoil Type A shall be placed at a minimum depth of 4 inches. "Topsoil Type A (4" Depth)" will be measured by the acre along the grade and slope of the area covered after application. Bid Item No. A81 — Topsoil Type A (12" Depth) (8-02) Measurement and payment for "Topsoil Type A (12" Depth)" shall be per square yard. SP- 12 Where "Topsoil Type A (12" Depth)" is called for in the plans, Topsoil Type A shall be placed at a minimum depth of 12 inches. "Topsoil Type A (12" Depth)" will be measured by the square yard along the grade and slope of the area covered after application. Bid Item No A82 — Seed/Sod Mix B (8-02) Measurement and payment for "Seed/Sod Mix B" shall be per acre. "Seed/Sod Mix B" will be measured by the acre along the grade and slope of the area covered after application. Bid Item No A83 — Bark or Wood Chip Mulch (3" Depth) (8-02) Measurement and payment for "Bark or Wood Chip Mulch (3" Depth)" shall be per square yard. Where "Bark or Wood Chip Mulch (3" Depth)" is called for in the plans, "Bark or Wood Chip Mulch" shall be placed at a minimum depth of 3 inches. "Bark or Wood Chip Mulch (3" Depth)" will be measured by the square yard along the grade and slope of the area covered after application. Bid Item No. A84 through A88 — PSIPE " 31 Measurement and payment for "PSIPE, " shall be per each. (8-02) The unit Contract price for "PSIPE ", per each, shall be full pay for all materials, labor, tools, equipment, and supplies necessary for weed control within the planting area, planting area preparation, fine grading, planting, cultivating, plant storage and protection, fertilizer and root dip, staking, cleanup, and water necessary to complete planting operations as specified. As the plants that include plant establishment are obtained, propagated, and grown, partial payments shall be made as follows after inspection by the Engineer: Payment of 5 percent of the unit Contract price, per each, when the plant materials have been contracted, propagated, and are growing under nursery conditions. The Contractor shall provide the Engineer with certification that the plant material has been procured or contracted for delivery to the project for planting within the time limits of the project. The certification shall state the location, quantity, and size of all material. Payment shall be increased to 15 percent of the unit Contract price, per each, upon completion of the initial weed control Work. Payment shall be increased to 60 percent of the unit Contract price per each for the contracted plant material in a designated unit area when planted. Payment shall be increased to 70 percent of the unit Contract price per each for contracted plant material at the completion of the initial planting. Payment shall be increased to the appropriate percentage upon reaching the following plant establishment milestones: June 30tb - 80 percent September 30th - 90 percent Completion of first -year plant establishment or after all 100 percent replacement plants have been installed, whichever is later (ITV AC TI IKWII A WA SP- 13 Plant establishment milestones are achieved when plants meet conditions described in Section 8- 02.3(13). As the plants that do not include plant establishment are obtained, propagated, and grown, partial payments shall be made as follows: Payment of 15 percent of the unit Contract price per each when the plant materials have been contracted, propagated, and are growing under nursery conditions. The Contractor shall provide the Engineer with certification that the plant material has been procured or contracted for delivery to the project for planting within the time limits of the project. The certification shall state the location, quantity, and size of all material. Payment shall be increased to 90 percent of the unit Contract price per each for contracted plant material at the completion of the initial planting. Payment shall be increased to 100 percent at the Physical Completion of the Contract. All partial payments shall be limited to the actual number of healthy vigorous plants that meet the stage requirements, limited to plan quantity. Previous partial payments made for materials rejected or missing will be deducted from future payments due the Contractor. Bid Item No. A89 — Cement Conc. Traffic Curb and Gutter (8-04) Measurement and Payment for "Cement Conc. Traffic Curb and Gutter" shall be by linear foot measured along the line and slope of the completed curb. Measurement of "Cement Conc. Traffic Curb and Gutter", when constructed across driveways or sidewalk ramps, will include the width of the driveway or sidewalk ramp. Bid Item No. A90 — Extruded Curb, Type 6 (8-04) Measurement and Payment for "Extruded Curb, Type 6" shall be by linear foot measured along the line and slope of the completed curb. Bid Item No. A91 — Integral Curb Wall (8-04) Measurement and Payment for "Integral Curb Wall" shall be by square foot of finished surface. Bid Item No. A92 — Cement Concrete Driveway Entrance (8-06) Measurement and Payment for "Cement Concrete Driveway Entrance" shall be by square yard of finished surface. Both "Cement Concrete Driveway Entrance, Type A" and "Cement Concrete Driveway Entrance, Type B" shall be paid for under the pay item "Cement Concrete Driveway Entrance". All costs in constructing the driveway entrance in segments and installing and removing the temporary approach shall be included. Bid Item No. A93 — Raised Pavement Marker Type 1 (8-09) Measurement and Payment for "Raising Pavement Marker Type 1" shall be per hundred. Included in the unit bid item price shall be, but shall not necessarily be limited to: all necessary materials, labor, and equipment to satisfactorily complete installation of raised pavement markers regardless of SP- 14 type or color as required to satisfactorily complete the work as defined in the Standard Specifications and these Special Provisions. Bid Item No. A94 — Raised Pavement Marker Type 2 (8-09) Measurement and Payment for "Raising Pavement Marker Type 2" shall be per hundred. Included in the unit, bid item price shall be, but shall not necessarily be limited to: all necessary materials, labor, and equipment to satisfactorily complete installation of raised pavement markers regardless of type or color as required to satisfactorily complete the work as defined in the Standard Specifications and these Special Provisions. Bid Item No. A95 — Raising Existing Beam Guardrail (8-11) Measurement and Payment for "Raising Existing Beam Guardrail" shall be by linear foot. Measurement of raising beam guardrail and removing beam guardrail will be by the linear foot measured along the line of guardrail actually raised or removed and reset. This will include transition sections, expansion sections, anchors, and terminal sections. Bid Item No. A96 — Black Vinyl Coated Chain Link Fence Type 3 (8-12) Measurement and Payment for "Black Vinyl Coated Chain Link Fence Type 3" shall be by linear foot. Measurement shall be of completed fence, along the ground line, exclusive of openings and shall include all posts required. Payment for clearing of fence line for "Coated Chain Link Fence Type 4" shall be in accordance with Section 2-01.5. Bid Item No. A97 — Black Vinyl Coated Chain Link Fence Type 4 (8-12) Measurement and Payment for "Black Vinyl Coated Chain Link Fence Type 4" shall be by linear foot. Measurement shall be of completed fence, along the ground line, exclusive of openings and shall include all posts required. Payment for clearing of fence line for "Coated Chain Link Fence Type 4" shall be in accordance with Section 2-01.5. Bid Item No. A98 — Black Vinyl Coated Double 14' Chain Link Gate (8-12) Measurement andl Payment for "Black Vinyl Coated Double 14' Chain Link Gate" shall be Per Each. Measurement shall be of completed gate and shall include all posts and accessories required. Bid Item No. A99 — Adjust Monument (8-13) Measurement and Payment for "Adjust Monument" shall be per each. Where called for on the plans, or where directed by the Engineer, the Contractor shall adjust existing monuments to the grade. The existing cast iron case and cover shall first be removed and thoroughly cleaned for reinstalling at the new grade. !`ITV AC T111 IA/11 A 1A/A TECHNICAL MEMORANDUM 5-year Monitoring Plan 696 City of Tukwila — 40th-42nd Avenue S Phase III Gilliam Creek Culvert Replacement Project PREPARED FOR: Cyndy Knighton, Senior Program Manager - Transportation City of Tukwila COPY TO: Eric Haupt/CH2M PREPARED BY: Linda Cyra-Korsgaard, RLA WA DATE: February 26, 2017 PROJECT NUMBER: Special Permission Permit#L16-00011 REVISION NO.: APPROVED BY: Eric Haupt/CH2M C•11?4#1t This 5-year monitoring plan outlines the actions that will be taken by the City of Tukwila in association with selected Contractor to restore and monitor the Gilliam Creek Culvert Replacement buffer area revegetation adjacent to 42nd Avenue S. Tukwila WA. The Construction is scheduled to begin in spring 2017, with revegetation implementation to begin in fall 2017. The project is located entirely on City of Tukwila land in western Washington. Roles, Responsibilities and Contacts The City of Tukwila project manager will be the main contact during design. During construction, the project engineer will be the main contact. The City of Tukwila will assign an environmental specialist who will be the main revegetation contact to consult during the construction phase. After the project has been completed, and the one year maintenance and monitoring contract is closed out, the project engineer will transition the remainder monitoring to the City of Tukwila environmental specialist. The project as planned will minimally affect soil conditions along the roadway. Cuts and fills will be designed to minimize erosion. The erosion and sediment control plans will be developed and will be the responsibility of the contractor. The project engineer and environmental specialists will have a limited role, primarily in providing guidance for temporary stabilization practices. Key to this guidance will be the selection of appropriate materials and methods that will not deter future revegetation efforts. Revegetation Objectives Following are the revegetation objectives for the creek buffer area: • Control noxious weeds using only approved herbicides. • Maintain slope stability. ui.-ool‘ 5-YEAR MONITORING PLAN • Minimize soil erosion. • Maintain biodiversity of the surrounding plant communities by planting native and locally adapted species. • Enhance scenic beauty using native grass, shrub, and tree species. Planting Performance Standards Plant species and seed mix are outlined in the project Landscape Plans and Specifications. Soil preparation is covered in the project specifications, civil and landscape details. As -built plans with final species and temporary (5 year) irrigation will be the basis of performing on -going monitoring of the project site. • Removal of riparian vegetation would be minimized to the greatest extent possible. • All trees and riparian vegetation remaining would be protected with fencing and care would be taken to avoid soil compaction and erosion. • All native vegetation to be planted would meet the American Standards for Nursery Stock, ANSI Z60.1 latest edition • Plants would be labeled with scientific and common name and nursery of origin when brought to site. • All plants shall comply with State and Federal laws governing the shipping, selling and handling of plant stock and inspection for plant diseases and pest infestations. Plants shall be certified free from disease and infestation and invasive weeds by the grower and supplier. Any inspection certificates required by law shall accompany each shipment. • Seed would be certified as prepared in accordance with project specifications. • The project contractor will design, install and maintain a temporary irrigation system to serve the site during the 1st year plant establishment period then the system will be transitioned over to the City for the remainder of the 5-year monitoring period. • Temporary irrigation plan, winterization/spring start-up would be approved by the City of Tukwila. • Survival rates, percent cover and diversity would be met by the contractor or contractor would install additional seeding/planting prior to final project acceptance. 5-YEAR MONITORING PLAN Table 1 Performance Standards Item Creek Bank Percent Native Plant Diversity Survival Rate Cover Required Plants Year 1 100% Additional information • Per Project Spec and Plans • Per Zones outlined on plans • Species substitutions shall be approved and documented on as -built Year 2-5 85% Additional information • Per Plans and Zones • Percent of establishment would be calculated for each side of Roadway Seed Year 1 1000% Additional information • Per Project Spec and Plans • Per Zones outlined on plans • Percent of establishment would be calculated for each side of Roadway Satisfactory Stand of Grass that has: • No bare spots larger than 3 square feet. • Not more than 10 percent of total area with bare spots larger than 1 square foot. • Not more than 15 percent of total area with bare spots larger than 6 square inches. • No erosion or gullying Year 2-5 85% Additional information • Per Plans and Zones Satisfactory Stand of Grass that has: • No bare spots larger than 3 square feet. • Not more than 10 percent of total area with bare spots larger than 1 square foot. • Not more than 15 percent of total area with bare spots larger than 6 square inches. • No erosion or gullying Project Constraints Restoration activities of the area impacted by the replacement of the creek culvert will be dependent on the Construction Schedule. Erosion control methods may be deployed if the restoration cannot be planted during the specified planting seasons. Access to the site for purposes of maintenance and monitoring from 42nd Avenue S. will be coordinated with the City of Tukwila project manager. Noxious Weeds Prevention The contractor will be required to clean all equipment and vehicles before entering and leaving the site to minimize spread of state- and county -listed noxious and non-native plants. Mud, dirt, and plant parts will be removed from project equipment before moving equipment into project areas. Also, the contractor will be required to use gravel from a known weed -free site. The contractor will be required to monitor and flag the known noxious and non-native plants, and remove any plants before project work 5-YEAR MONITORING PLAN begins. The contractor will be required to use weed -free staging areas within the project site as agreed by the project engineer. Control Monitoring and treatment of noxious weeds and invasive plants will occur regularly beginning at project start and will continue through successful vegetation establishment. The monitoring and treatment plan will be cooperatively developed by the City and the Contractor. The plan is not a substitute for prevention, but rather directs and funds additional resources to monitor and treat noxious weeds and invasive plant species in, and adjacent to, the construction corridor during and after project implementation. Monitoring also includes haul roads, source sites and waste areas. Monitoring Program Overall Monitoring Monitoring will be conducted during late spring to early summer of the field season following the initial plant and seed application. Areas of unsatisfactory plant establishment will be evaluated for retreatment and will be re -seeded, if appropriate, the following fall. Shrubs and trees will be assessed for establishment rate, survival, animal damage and need for protection, and potential need for replacement with new plants. At final contract acceptance the contractor shall turn over necessary user manuals for the irrigation system, as -built drawings and plant lists, monitoring reports and photo documentation. The City of Tukwila will continue the monitoring over the next four years to evaluate success in establishment, species composition, and percentage of plant cover. Noxious weeds will also be monitored, and will be eradicated if found on the site. During the monitoring inspections a qualified biologist, arborist and/or environmental specialist would field inspect the new project features including the riparian plantings. The monitoring team would look for and document evidence of bank erosion, planting success and failures and invasive vegetation. Baseline(post-construction) project site conditions will be documented for reference. For each post - construction monitoring year, a monitoring report will be submitted to the City of Tukwila. The reports will describe the monitoring methods, performance standards, results, and contingency measures. Each monitoring report will) include photographic documentation taken from established photo points, one for each zone. Revegetation Zones Six revegetation zones were delineated for this project based on slopes, soil depths and location. Monitoring Tasks The contractor will install a temporary irrigation system and will operate, maintain and monitor the planting and seeding through the 1-year establishment period. Plant material or seeding areas that are not satisfactory will be replaced through the final acceptance of the project. Subsequent to the 1st year, the City of Tukwila will maintain and monitor the planting for the remaining 4 years. / 5-YEAR MONITORING PLAN Each zone will have a representative 30x 30 plot staked and photographed at installation and the following fall and spring for the 5-year duration. The number, growth and health condition of the seed, shrubs and trees will be documented and recommendations made for adjustments in fertilizer, water, pest control, and species replacement. Noxious weeds will be monitored for a minimum of 5 years and will be eradicated if found on the site. Maintenance Tasks In the spring of every year, the irrigation system will be made operational and timed to supply adequate water to all areas. In the fall the irrigation system will be winterized. Trash will be collected and disposed of during the spring and fall inspections. Summary The Contractor will submit a monitoring reports in the spring and fall and at the end of the 1-year plant establishment & monitoring period as part of the contract. Subsequent monitoring reports will be submitted in the spring and fall of years 2, 3 4 and 5. They will be compiled and submitted to the Urban Environmental Specialist, City of Tukwila. TECHNICAL MEMORANDUM C.i#1?ANI! 5-year Monitoring Plan City of Tukwila — 40th-42nd Avenue S Phase III Gilliam Creek Culvert Replacement Project PREPARED FOR: Cyndy Knighton, Senior Program Manager -Transportation City of Tukwila COPY TO: Eric Haupt/CH2M PREPARED BY: Linda Cyra-Korsgaard, RLA WA DATE: February 26, 2017 PROJECT NUMBER: Special Permission Permit #L16-00011 REVISION NO.: APPROVED BY: Eric Haupt/CH2M This 5-year monitoring plan outlines the actions that will be taken by the City of Tukwila in association with selected Contractor to restore and monitor the Gilliam Creek Culvert Replacement buffer area revegetation adjacent to 42nd Avenue S. Tukwila WA. The Construction is scheduled to begin in spring 2017, with revegetation implementation to begin in fall 2017. The project is located entirely on City of Tukwila land in western Washington. Roles, Responsibilities and Contacts The City of Tukwila project manager will be the main contact during design. During construction, the project engineer will be the main contact. The City of Tukwila will assign an environmental specialist who will be the main revegetation contact to consult during the construction phase. After the project has been completed, and the one year maintenance and monitoring contract is closed out, the project engineer will transition the remainder monitoring toihe-6ixya la Is . CC i weerc r' l r -k -- C .„0-►"a. -rI r The project as planned will minimally affect soil conditions along the roadway. Cuts and fills will be designed to minimize erosion. The erosion and sediment control plans will be developed and will be the responsibility of the contractor. The project engineer and environmental specialists will have a limited role, primarily in providing guidance for temporary stabilization practices. Key to this guidance will be the selection of appropriate materials and methods that will not deter future revegetation efforts. Revegetation Objectives Following are the revegetation objectives for the creek buffer area: • Control noxious weeds using only approved herbicides. • Maintain slope stability. _ . . 1acL 5-YEAR MONITORING PLAN • Minimize soii erosion. • Maintain biodiversity of the surrounding plant communities by planting native and-leeally .adapted species. • Enhance scenic beauty using native grass, shrub, and tree species. Planting Performance Standards Plant species and seed mix are outlined in the project Landscape Plans and Specifications. Soil preparation is covered in the project specifications, civil and landscape details. As -built plans with final species and temporary (5 year) irrigation will be the basis of performing on -going monitoring of the project site. • Removal of riparian vegetation would be minimized to the greatest extent possible. • All trees and riparian vegetation remaining would be protected with fencing and care would be taken to avoid soil compaction and erosion. • All native vegetation to be planted would meet the American Standards for Nursery Stock, ANSI Z60.1 latest edition • Plants would be labeled with scientific and common name and nursery of origin when brought to site. • All plants shall comply with State and Federal laws governing the shipping, selling and handling of plant stock and inspection for plant diseases and pest infestations. Plants shall be certified free from disease and infestation and invasive weeds by the grower and supplier. Any inspection certificates required by law shall accompany each shipment. • Seed would be certified as prepared in accordance with project specifications. • The project contractor will design, install and maintain a temporary irrigation system to serve the site during the 1st year plant establishment period then the system will be transitioned over to the Cit for the remainder of the 5-year moniitoring period. �`vrnh� • Temporary irrigation plan, winterization/spring start-up would be approved by the City of Tukwila. • Survival rates, percent cover and diversity would be met by the contractor or contractor would install additional seeding/planting prior to final project acceptance. 5-YEAR MONITORING PLAN Table 1 Performance Standards Item Creek Bank Percent Native Plant Diversity Survival Rate Cover Required Plants Year 1 100% Additional information • Per Project Spec and Plans • Per Zones outlined on plans • Species substitutions shall be approved and documented on as -built Year 2-5 85% Additional information • Per Plans and Zones - • Percent of establishment would be calculated for each side of Roadway Seed Year 1 1004 Additional information • Per Project Spec and Plans • Per Zones outlined on plans • Percent of establishment would be calculated for each sid of Roadway, Satisfactory Stand of Grass that has: • No bare spots larger than 3 square feet. • Not more than 10 percent of total area with bare spots larger than 1 square foot. • Not more than 15 percent of total area with bare spots larger than 6 square inches. • No erosion or gullying Year 2-5 85% Additional information • Per Plans and Zones Satisfactory Stand of Grass that has: • No bare spots larger than 3 square feet. • Not more than 10 percent of total area with bare spots larger than 1 square foot. • Not more than 15 percent of total area with bare spots larger than 6 square inches. • No erosion or gullying Project Constraints Restoration activities of the area impacted by the replacement of the creek culvert will be dependent on the Construction Schedule. Erosion control methods may be deployed if the restoration cannot be planted during the specified planting seasons. Access to the site for purposes of maintenance and monitoring from 42' Avenue S. will be coordinated with the City of Tukwila project manager. Noxious Weeds Prevention The contractor will be required to clean all equipment and vehicles before entering and leaving the site to minimize spread of state- and county -listed noxious and non-native plants. Mud, dirt, and plant parts will be removed from project equipment before moving equipment into project areas. Also, the contractor will be required to use gravel from a known weed -free site. The contractor will be required to monitor and flag the known noxious and non-native plants, and remove any plants before project work 5-YEAR MONITORING PLAN begins. The contractor will be required to use weed -free staging areas within the project site as agreed by the project engineer. Control Monitoring and treatment of noxious weeds and invasive plants will occur regularly beginning at project start and will continue through successful vegetation establishment. The monitoring and treatment plan will be cooperatively developed by the City and the Contractor. The plan is not a substitute for prevention, but rather directs and funds additional resources to monitor and treat noxious weeds and invasive plant species in, and adjacent to, the construction corridor during and after project implementation. Monitoring also includes haul roads, source sites and waste areas. Monitoring Program Overall Monitoring Monitoring will be conducted during late spring to early summer of the field season following the initial plant and seed application. Areas of unsatisfactory plant establishment will be evalluated for retreatment and will be re -seeded, if appropriate, the following fall. Shrubs and trees will be assessed for establishment rate, survival, animal damage and need for protection, and potential need for replacement with new plants. At final contract acceptance the contractor shall turn over necessary user manuals for the irrigation system, as -built drawings and plant lists, monitoring reports and photo documentation. CbtnAYeCabr The City of Tukwila will continue the monitoring over the next four years to evaluate success in establishment, species composition, and percentage of plant cover. Noxious weeds will also be monitored, and will be eradicated if found on the site. 1070 we_, «� Yetur yew l's During the monitoring inspections a qualified biologist, arborist and/or environmental specialist would field inspect the new project features including the riparian plantings. The monitoring team would look for and document evidence of bank erosion, planting success and failures and invasive vegetation. Baseline(post-construction) project site conditions will be documented for reference. For eacji_post, lic'I construction monitoring year, a monitoring report will be submitted to the City of Tukwila. h'T e reports 1 4 ik will describe the monitoring methods, performance standards, results, and contingency measures. Each monitoring report willl include photographic documentation taken from established photo points, one for each zone. Revegetation Zones Six revegetation zones were delineated for this project based on slopes, soil depths and location. Monitoring Tasks The contractor will install a temporary irrigation system and will operate, maintain and monitor the planting and seeding through the 1-year establishment period. Plant material or seeding areas that are not satisfactory will be replaced through the final acceptance of the project. Subsequent to the 1s` year, the City of Tukwila will maintain and monitor the planting for the remaining 4 years. CYQ4" 5-YEAR MONITORING PLAN Each zone will have a representative 30x 30 plot staked and photographed at installation and the following fall and spring for the 5-year duration. The number, growth and health condition of the seed, shrubs and trees will be documented and recommendations made for adjustments in fertilizer, water, pest control, and species replacement. Noxious weeds will be monitored for a minimum of 5 years and will be eradicated if found on the site. Maintenance Tasks In the spring of every year, the irrigation system will be made operational and timed to supply adequate water to all areas. In the fall the irrigation system will be winterized. Trash will be collected and disposed of during the spring and fall inspections. Summary The Contractor will submit a monitoring reports in the spring and fall and at the end of the 1-year plant establishment & monitoring period as part of the contract. 00t 31 Subsequent monitoring reports will be submitted it the-sprinel}of years 2, 3 4 and 5. They will be compiled and submitted to the Urban Environmental Specialist, City of Tukwila. who c's — VJIIkr2_,Q �' Rat ww-utvil� t°� AU&( Lai 10% oJ G.A.ver yok4. 5) (2o" o Nka.,_ �f 3v* S(A,kruis _ At OW1 S i til/►A g Moira Bradshaw From: Moira Bradshaw Sent: Wednesday, September 28, 2016 9:40 AM To: Robin Tischmak Cc: Cyndy Knighton Subject: 42 Ave S. culvert replacement Special Permission and tree permit On March 17, 2016, DCD determined that the applications (L16-0011) for the Special Permission for work in the stream and buffer and the tree permit for work in sensitive areas were incomplete. On May 12, a revised incomplete memo was created that listed items based upon a revised proposal to eliminate the above ground storm water facility that had been shown in the buffer. Z:\DCD & PW\42 Av S\Incomplete L16-00011.pdf Z:\DCD & PW\42 Av S\Incomplete Revised L16-00011.pdf A fee of $1601.25 was paid for the applications. The TMC stipulates a timeline for responding to an incomplete application (TMC 18.104.070.) Please get back to me with a request for an extension with some realistic timelines so that we may hold open the applications. Thanks Moira City of Tukwila Allan Ekberg, Mayor Public Works Department - Bob Giberson, Director MEMORANDUM TO: David Cline, City Administrator FROM: Bob Giberson, Public Works Director DATE: April 18, 2016 SUBJECT: Sensitive Area Regulations Related to 42nd Avenue S Phase III Project Issue Stormwater detention is required for all projects which add impervious surfaces; the 42"d Avenue S Phase III project proposes to construct an open detention pond west of 42nd Avenue S in the Gilliam Creek buffer zone to detain stormwater runoff for the widened street and new sidewalks and buffer zones. The proposed location and design is the most feasible option to construct but DCD sensitive area regulations have been interpreted in such a way that detention in the stream buffer is not allowed. Background Public Works contracted with CH2MHill to design the combined 42nd Avenue S Phase III project and the Gilliam Creek Culvert Replacement project in February 2012. As the design progressed and utility coordination occurred, challenges on the placement of the stormwater detention facility arose. In a 35 foot wide area of the proposed detention pond, there are: • 4" natural gas • Water main • 12" high pressure natural gas • Power • Stormwater line • Communications (phone, cable) • Sewer lines (main and side sewers) • Fiber optics At the 30% design level, a detention vault was proposed and this was circulated to internal staff as well as the utility providers for review on March 19, 2013. After review by Puget Sound Energy (PSE), it was found that one of the gas lines was a 12" high pressure gas main that is one of two lines that provides natural gas for south Seattle. This gas line cannot be readily removed from service or relocated easily and staff has been working closely with PSE to support the line during the culvert excavation in order to leave it in service during construction. Because of the high expense to relocate the gas main and the impacts to the construction schedule, the City agreed to look for an alternate location for stormwater detention as the underground vault would have warranted a relocation4SEPA Checl(ist was submitted on July 7, 2014 which included a reference to stormwater detention of either a pond or a vault that would be constructed within City owned property as it was not yet determined which option would be used. At the 60% design level the open stormwater pond had been selected and plans were Sensitive Area Regulations Related to the 42nd Avenue S Phase III Project April 18, 2016 Page 2 provided to internal staff and the outside utility providers for review on August 20, 2014. A Determination of Non -Significance was issued on October 20, 2014 and the staff report issued on the same day concluded that the combined project did not have the potential to impact the environment. Landscape restoration along the creek would be addressed under a Special Permission, Director permit was noted in the Notice of Decision. On November 23, 2015, the 90% design level plans were distributed internally and to the outside utility providers. On December 31,J1115, DCD provided comments on the draft plans, including first-time statement declaring the stormwater detention pond as not allowed under the Sensitive Areas Ordinance. In accordance with the SEPA DNS, Public Works submitted an application to DCD for the Special Permission, Director permit for the landscaping work in the stream buffer on March 2, 2016. The application included reference to the stormwater pond as exempt from complying with the SAO because it is an essential public utility. On March 17, 2016, the application was deemed as incomplete and required that the stormwater detention pond be removed from the watercourse buffer. The incomplete memorandum also stated that the detention pond was not considered an Essential Utility. In an interdepartmental memorandum dated April 6, 2016, four options were identified by DCD Director Jack Pace for consideration as alternatives to the open stormwater detention pond. Discussion Public Works contends that stormwater detention facilities are part of the Surface Water Management Utility that clearly is an essential public utility, and that in this case, the stormwater detention is irrevocably tied to the street, which is also considered an essential public utility as defined in TMC 18.06.285. Stormwater detention must be provided for the street improvement project to detain for all the new impervious surface area that will be added to allow for the widened roadway, uphill bike lane, and sidewalks with buffer zones on both sides of the street. The regulatory requirements for stormwater standards stem from the Federal Clean Water Act. This act requires states to regulate stormwater discharges, and in Washington this falls under the control of the Department of Ecology (DOE). DOE implemented rules concerning stormwater requiring jurisdictions adopt standards that are equivalent to their requirements. Tukwila chose to adopt the King County Surface Water Manual (KCSWM) to regulate both flow control and water quality. The project has been designed to meet the KCSWM requirements as well as minimize utility conflicts, control costs, and minimize construction impacts. As such, the open pond option was selected mid- 2014 as the best option. In order to meet the clean water standards defined in RCW 90.48, three new water quality treatment facilities have also been included in the project design, including one unit immediately prior to the proposed detention pond. Within TMC 18.45.070, Sensitive Area Permitted Uses, Essential Public Streets, Roads, and Rights -of - Way are permitted uses subject to administrative review and approval by the DCD director. Sensitive Area Regulations Relate, .o the 42nd Avenue S Phase III Project April 18, 2016 • Page 3 Feasibility As suggested by the City Attorney, Public Works analyzed the feasibility of alternative options,In response to the incomplete application memorandum and the April 6, 2016 interdepartmental memorandum, Public Works has researched several options to the proposed open pond. DCD Options The first option proposed in the April 6th memo was to create in -stream ponds with dams to provide in - stream detention and at the same time remove the existing failing dam just upstream from the new fish -passable culvert being installed as part of this project. First off, removal of the failing dam is outside of the limits of this project, as was discussed during the SEPA comment period. The dam has been in place for more than 50 years and has decades of silt behind it. In order to remove the dam, Gilliam Creek would have to be dredged or a large volume of silt would be sent downstream, clogging up the streambed and generally negatively affecting the stream quality. The slow crumbling of the dam is preferred at this time to avoid dredging or silting up of the downstream creek. Secondly, this option was proposed to both the Department of Fish and Wildlife (DFW) and DOE. Neither state agency would permit this option. RCW 90.48.080 was cited by DOE as the overarching reason this is not an allowed use. NOT loieleer-T The second option proposed was to create a system of bioswales linearly along the stream corridor within the buffer, which could require terracing the existing steep buffer edges. There appears to be some confusion between storm detention and water quality treatment. Bioswales are a water quality treatment option, they are not a stormwater detention facility. A variant of this option was looked at and discussed below. The third option was to evaluate a combination of an underground vault and above ground infiltration, citing the anecdotal evidence provided by two property owners at a recent open house. This option has not been fully explored as pervious pavement is not effective on slopes greater than 5%. Most of 42nd Avenue S in the project area greatly exceeds 5% grades, with much of the roadway being at or near 14% grades. The only flat area of the project is at this low spot where the detention pond is proposed near Gilliam Creek. The amount of stormwater detention reduction that could be achieved by including pervious pavement in this flat section is likely nominal. The fourth option was to request a watercourse buffer reduction and propose storm detention facilities subject to the standards for buffer width reductions. However, under the interpretation given in that memo, only bioswales and dispersion outfalls are the only stormwater facilities allowed in watercourse buffers. As stated above, bioswales are for water quality treatment and are not a stormwater detention facility. Dispersion outfalls are also not a storm detention facilities. Public Works Feasibility Analysis 1. Demolition of the City -owned house leased to Way Back Inn to accommodate an underground vault or an open pond Sensitive Area Regulations Related to the 42nd Avenue S Phase III Project April 18, 2016 Page 4 2. Demolition of the carport south of the City -owned house for an underground vault or open pond 3. Underground vault in the roadway 4. Combination of bioswales with check dams to provide storm detention on the entire city - owned parcel, including demolition of the house 5. An underground vault in place of the proposed open pond with native plants on top 6. Bioswales in place of the proposed open pond. The table on the next page summarizes the options with pros and cons as well as a cost estimate to design and construct each option. In both variants of option 1 and option 4, the house that is currently leased to Way Back Inn would be removed. The demolition cost has been included but no dollar amount is assigned to the social and political costs. Three options have been deemed infeasible for not meeting the needs of the project's detention or simply because there is not enough real estate to construct the option. Summary 1. All surface water utility facilities are included in the definition as an "Essential Utility", per TMC 18.06.285; 2. All essential utilities should be allowed to provide proof of technical and financial feasibility per TMC Section 18.06.305; — ftau's'b lW( > t <ocrix\ 3. TMC 18.45.070 B says "detention may be allowed.,.", followed by "bioswales and dispersion outfalls are the only storm water facilities allowed in wetland or watercourse buffers...". Clearly this is a conflict in the code that requires correction. 4. TMC 18.45.070 says that detention ponds may be permitted after administrative review and and approval of the (DCD) Director. The most feasible option for providing the required stormwater detention is the open pond that has been discussed and as currently designed and should be approvable by DCD. Mitigation to the stream buffer is already proposed for the new fish -passable culvert to replace the vegetation that must be removed for the construction. Additional plantings could be included, where feasible, to mitigate the buffer disturbance caused by the detention pond. The banks of Gilliam Creek are already on very steep slopes which limits the amount of type of planting that can be installed. It could be possible to plant the area surrounding the open pond on the south side; the actual pond itself cannot be planted. Sensitive Area Regulations Related to the 42nd Avenue S Phase III Project April 18, 2016 Page 5 Option Description Pros Cons/impacts Cost Estimate 90% Plan Open Pond north of House • Current design — complete to 90% • Allows house to stay • Extensive impact to stream buffer including within the 50% buffer zone (inside 40' from Stream) • Impacts several existin. trees $217,900 1A Vault — in place of House • Less impact to stream buffer than current design — no impact within 50% zone. • Reduces impacts to trees • Allows for Buffer enhancement • Within exterior 50% of stream buffer zone. • Requires demolition of house - Social impact • Potential Asbestos? $646,300 1 B Pond — in place of House • Less impact to stream buffer than current design — no impact within 50% zone. • Reduces impacts to trees • Allows for Buffer enhancement • Within exterior 50% of stream buffer zone. • Requires demolition of house - Social impact • Potential Asbestos? • Pond gets deeper as we move south $316,700 2A Vault — in carport area • Allows house to stay • Extensive impact to buffer including within the 50% zone (inside 40' from Stream) • Requires extensive shoring to avoid impacts to house. Very difficult to construct. • Demo carport — no covered parking in future $648,200 2B Pond — in carport Not Feasible — insufficient space for open pond 3 Vault — in Roadway • Less impact to stream buffer than current design — no impact within 50% zone • Allows house to stay • Eliminates impact to property • Requires redesign of storm drainage system in road • Significant shoring to avoid impact to PSE High Pressure Gas Main, and hillside to the east. • Within exterior 50% of stream buffer zone. Impacts stream buffer on east side of road $515,600 4 Bio-swales/Check dams — Full property Not Feasible — only provides 60% of the required stormwater detention capacity _ _ 5 Vault north of house with native plants on top • Vault allows planting on top — less visual impact than pond • Allows house to stay • Extensive impact to buffer including within the 50% zone (inside 40' from Stream) • Vault will be very shallow — approx. 1'-2' cover — only grasses and small shrubs can be planted over vault — no trees $679,700 6 Bio-swales north of house Not Feasible — insufficient space — even larger bio-swale (option 4) falls short of required capacity. To: Jack Pace From: Moira Bradshaw Copy: Minnie Dhaliwal Date: 14 March 2016 Subject: Storm Water Detention —42 Avenue S. Findings Paid q9I.25 • Gilliam Creek between SR 518 and 42Avenue S. is a Type 3 Watercourse with a required 80 foot buffer. • The project area may also be a Fish and Wildlife Habitat Conservation Area. (TMC 18.45.150) • The City regulates the uses that are allowed within sensitive areas. • In conjunction with the City's 42 Avenue S. Street Project a storm detention facility is being proposed within the buffer of the watercourse. The materials submitted do not explain why the storm detention facility is needed or located in the current location. (See attached plan view) • In December 2015, DCD staff advised the applicant that the proposed storm facility is not allowed as sited due to City regulations. The only options available are: discharges of water into the buffer and watercourse (2) and bioswales and dispersion outfalls (3.) Essential utilities (5) does not apply because an essential utility refers to utility pipes that are crossing through a sensitive area. (see Below TMC related section.) • All land uses and development activities in a sensitive area or buffer is affected and No person, agency or applicant shall alter a sensitive area or buffer except as consistent with the purpose and requirements of the Chapter. Sensitive Area Applicability Section (18.45.030(A)) • The provisions of the Sensitive areas Chapter are held to be minimum requirements in the interpretation and application and shall be liberally construed to serve the purposes of that Chapter. (TMC18.45.050) Related Code reference The City's Sensitive Area Permitted Uses section (TMC 18.45.070) and specifically Permitted uses Subject to Administrative Review (B) lists the following uses that may be permitted only after administrative review and approval by the Director: 2. New surface water discharges to sensitive areas or their buffers from detention facilities, pre - settlement ponds or other surface water management structures may be allowed provided that the discharge meets the clean water standards and does not adversely affect water level fluctuations in eh wetland or adversely affect watercourse habitat and watercourse flow conditions relative to the existing rate. 3. Bioswales and dispersion outfalls are the only storm water facilities allowed in wetland or watercourse buffers. Water quality monitoring may be required as a condition of use. 5. Essential Utilities a. Essential utilities must be constructed to minimize or where possible avoid, disturbance of the sensitive area and its buffer. b. All construction must be designed to protect the sensitive area and its buffer against erosion, uncontrolled storm water, restriction of groundwater movement, slides, pollution, habitat disturbance, any loss of flood carrying capacity and storage capacity and excavation or fill detrimental to the environment. c. Upon completion of installation of essential utilities, sensitive areas and their buffers must be restored to pre -project configuration, replanted as required and provided with maintenance care until newly planted vegetation is established. In addition, mitigation to offset impacts to sensitive areas or their buffers must be carried out in accordance with the standards and mitigation ratios of this Chapter. d. All crossing must be designed for shared facilities in order to minimize adverse impacts and reduce the number of crossings. Attachment — Site Plan of Creek and proposed Storm Water facility Interdepartmental Memorandum To: Bob Giberson From: Jack Pace Date: May 12, 2016 Subject: 42 Avenue S. Improvement Project Issue What are the outstanding items for the above project? Background Per the recent decision to place underground the required storm detention for the 42 Avenue S. street improvement, there are modifications to the March 17, 2016 memorandum from Moira Bradshaw to Cyndy Knighton. Proposed Sensitive Area Use An administrative decision is required for most work in sensitive areas and their buffers. The DCD Director must make a Type 2 administrative quasi-judicial decision regarding the "Maintenance and repair of existing uses and facility where alteration or heavy construction equipment is used." (TMC 18.45.070(B)(1) The watercourse alteration proposed due to the culvert replacement is subject to the standards of (TMC 18.45.110) Procedurally — Application: http://tukwilawa.gov/wp-content/uploads/DCD-Apps- SpecialPermission-Director.pdf and fee: $1,601.25 are needed for this proposed decision. 11o') A mitigation plan (See 18.45.110(C) Mitigation Plan Content) and a narrative responding to the criteria for altering the watercourse should include: o description of reasonable efforts to apply mitigation sequencing to avoid minimize and mitigate impact to the sensitive areas, o plans for adequate mitigation to offset any impacts, o how water quality treatment, erosion control pollution reduction, wildlife and fish habitat and general watercourse quality would be improved, o how the culvert is the shortest length possible, that is — why must it be 146 feet versus its current length of 92. Describe how the bank and buffer configuration are restored to an enhanced state per the Mitigation Minimum Standards (TMC 18.45.110(D.) In addition, the mitigation plan should discuss timing of mitigation (TMC 18.45.110 (F) and how it will be done before the alteration, and if not, why. Substantively In the Performance Standards and Monitoring/Maintenance Plan, submittal of monitoring reports to DCD for at least 5 years and adaptively managing the site to ensure success will be required.. There needs to be budget set -aside for ongoing maintenance as the budget Page 1 of 2 closes at the end of the project construction. The City cannot spend money on a CIP project and do no maintenance afterward because we don't have the funding, staff or expertise. Proposed Tree removal in Sensitive Area - File # L16-0011: As noted in a previous memo there is some additional information that is needed and some issues that will need to be resolved with the proposal. Procedurally - A written response to the following Tree Permit Criteria Permit Exceptions (TMC 18.54.140) is needed: 2. a. Strict compliance with the provisions of this code may jeopardize project feasibility or reasonable use of property. b. Proposed vegetation removal, replacement, and any mitigative measures proposed, are consistent with the purpose and intent given in this chapter. c. The granting of the exception or standard reduction will not be detrimental to the public welfare or injurious to other property in the vicinity. 3. In addition to the above criteria, the Director may also consider any of the following in reviewing an exception request: b. The size of the site or project cannot support the number of required replacement trees, and off -site tree planting is proposed, which furthers the goals of this chapter and other City policies. c. On -site planting of all required replacement trees is not feasible, and the project includes an equivalent contribution in funds and/or labor and materials for off -site tree planting as jointly agreed by the applicant and Director. d. Smaller -sized replacement plants are more suited to the species, site conditions, and to the purposes of this chapter, and are planted in sufficient quantities to meet the intent of this chapter. Substantively - the landscape plan is vague and too broad in scope for us to evaluate the effectiveness and impact of the proposed replanting. The soil preparation depths are not adequate for either the lawn or trees; a minimum of 6" for small ground covers/grass and 12" for shrubs and trees will be required. In addition, while the smaller size of plant replacement can be supported, it comes at a substantially longer time lag for canopy coverage and the need for more initial maintenance (irrigation and weeding), so more than a 10% increase over existing trees will be required. On the sensitive slopes, the proposed use of lawn requires mowing and watering for maintenance. If the lawn is not a continuation of an existing condition, the disturbed areas should be planted with drought tolerant native shrubs, treesor ground cover that is able to spread and stabilize the soils. Please refer us to the topographic plan with 2 foot contours for the affected areas and the specifications for the seed mixes. If you or your staff need additional information, please feel free to contact Moira with questions or clarifications. Page 2 of 2 7 '4 TECHNICAL MEMORANDUM CH2MHILL® Gilliam Creek - Bankfull Width Measurement Survey PREPARED FOR: Karen Walter/Muckleshoot Tribe COPY TO: PREPARED BY: DATE: Jacalen Printz/USACE Roger Mason/CH2M Cyndy Knighton/City of Tukwila Rob Rodland March 2, 2016 Upstream survey for bank full width (BFW) measurements was taken on May 1, 2015 by Randy Whitman, retired CH2M HILL fisheries biologist, and Rob Rodland. The purpose of the visit was to collect BFW measurements upstream of the water diversion dam (Photo 1, 2, and 3) on Gilliam Creek not previously done as part of the culvert replacement project by the City of Tukwila. Four measurements were taken over a distance of 255-feet. No measurements upstream beyond 255 feet because the gradient of the creek increases to 7- to 10-percent with boulder rapids (Photo 8). Table 1 provides information on the four BFW measurements (Photos 5, 6, and 7). The riparian zone in the area surveyed consists of mature maple and alder with blackberry/fern understory. The left bank of the creek just upstream of the water diversion dam included a wetland and seeps (Photo 4). TABLE 1 Upstream BFW Measurements ID Distance from Diversion Dam (feet) BFW Measurement (decimal feet) Location Information BFW 1 68 15.0 Riffle BFW 2 122 11.33 Riffle BFW 3 204 10.33 Riffle BFW 4 249 9.67 Base of rapids Notes: Riffle substrate is gravel and cobble. Of the four measurements taken the average BFW measurement is 11.58 feet. The calculation to determine the width of the culvert (Average BFW (1.2) + 2 feet) is 11.58 (1.2) + 2 = 15.90 feet in diameter. Rounded to the nearest foot the culvert size should be 16 feet. This is consistent with the BFW measurements taken downstream of the existing culvert (Table 2) over a distance of about 300 feet. These measurements were taken in 2012 by Randy Whitman and Larry Fisher (WDFW). TABLE 2 Downstream BFW Measurements ID BFW Measurement (decimal feet) 1 12.0 2 11.5 3 10.5 4 11.0 5 11.2 Notes: BFW measurements taken in 2012. The average BFW for the downstream survey was 11.24 feet and using the calculation the culvert was determined to be 16 feet. 11.24 (1.2) + 2 = 15.49 feet and rounded up to 16 feet. GILLIAM CREEK - BANKFULL WIDTH MEASUREMENT,EY Q Photo 1— Looking upstream towards water diversion dam structure. Photo 2 - Looking downstream towards culvert from the water diversion dam structure. GILLIAM CREEK - BANKFULL WIDTH MEASUREMENT NIS /EY Photo 3: Looking towards diversion dEm structure and starting point for measurements upstream. Photo 4: Looking towards wetland feature upstream of water diversion dam structure. GILLIAM CREEK - BANKFULL WIDTH MEASUREMENT 5.,,tVEY Photo 5: Looking downstream towards BFW 1 measurement location. Photo 6: Looking upstream towards BFW 2 measurement location. GILLIAM CREEK - BANKFULL WIDTH MEASUREMENIVEY Ire Photo 7: Looking upstream from BFW 4 measurement location. Photo 8: Looking upstream towards boulder rapids. No additional BFW measurements past this point. REPLY TO ATTENTION OF Regulatory Branch DEPARTMENT OF THE ARMY SEATTLE DISTRICT, CORPS OF ENGINEERS P.O. BOX 3755 SEATTLE, WASHINGTON 98124-3755 JUN 152015 Ms. Cyndy Knighton City of Tukwila Public Works Department 6300 Southcenter Boulevard, Suite 100 Tukwila, Washington 98188 Dear Ms. Knighton: RECEIVED JUN 1 7 2015 TUKWILA PUBLIC WORKS Reference: NWS-2014-709 Tukwila, City of (Gilliam Creek culvert) We have reviewed your application to replace an existing 3-foot diameter concrete culvert with a new 16-foot wide corrugated metal pipe culvert in Gilliam Creek to facilitate the widening of 42nd Avenue South at Tukwila, Washington. Based on the information you provided to us, Nationwide Permit (NWP) 14, Linear Transportation Projects (Federal Register February 21, 2012, Vol. 77, No. 34), authorizes your proposal as depicted on the enclosed drawings dated September 2014. In order for this authorization to be valid, you must ensure the work is performed in accordance with the enclosed NWP 14, Terms and Conditions and the following special condition: a. You must implement and abide by the Endangered Species Act (ESA) requirements and/or agreements set forth in the No Effect Memo dated June 20, 2014, in their entirety. The U.S. Army Corps of Engineers (Corps) made a determination of No Effect for all species and critical habitat based on this document. Failure to comply with the commitments made in this document constitutes non-compliance with the ESA and your Corps permit. We have reviewed your project pursuant to the requirements of the ESA, the Magnuson - Stevens Fishery Conservation and Management Act and the National Historic Preservation Act. We have determined this project complies with the requirements of these laws provided you comply with all of the permit general and special conditions. The authorized work complies with the Washington State Department of Ecology's (Ecology) Water Quality Certification and the Coastal Zone Management Act requirements for this NWP. No further coordination with Ecology is required. -2- We have prepared and enclosed a Preliminary Jurisdictional Determination (JD) dated November 4, 2014, which is a written indication that wetlands and waterways within your project area may be waters of the U.S. Such waters will be treated as jurisdictional waters of the U.S. for purposes of computation of impact area and compensatory mitigation requirements associated with your permit application. If you believe the Preliminary JD is inaccurate, you may request an Approved JD, which is an official determination regarding the presence or absence of waters of U.S. If one is requested, please be aware that we may require the submittal of additional information to complete an approved JD and work authorized in this letter may not occur until the approved JD has been finalized. Our verification of this NWP authorization is valid until March 18, 2017, unless the NWP is modified, reissued, or revoked prior to that date. If the authorized work has not been completed by that date and you have commenced or are under contract to commence this activity before March 18, 2017, you will have until March 18, 2018, to complete the activity under the enclosed terms and conditions of this NWP. Failure to comply with all terms and conditions of this NWP verification invalidates this authorization and could result in a violation of Section 404 of the Clean Water Act and/or Section 10 of the Rivers and Harbors Act. You must also obtain all local, State, and other Federal permits that apply to this project. You are cautioned that any change in project location or plans will require that you submit a copy of the revised plans to this office and obtain our approval before you begin work. Deviating from the approved plans could result in the assessment of criminal or civil penalties. Upon completing the authorized work, you must fill out and return the enclosed Certificate of Compliance with Department of the Army Permit form. Thank you for your cooperation during the permitting process. We are interested in your experience with our Regulatory Program and encourage you to complete a customer service survey form. This form and information about our program is available on our website at www.nws.usace.army.mil select "Regulatory Branch, Permit Information" and then "Contact Us." A copy of this letter without enclosures will be furnished to Ms. Eilean Davis, CH2M Hill at 1100 112th Avenue Northeast, Suite 500, Bellevue, Washington 98004. If you have any questions, please contact me at jacalen.m.printz@usace.army.mil or (206) 764-6901. Sincerely, Jacalen M. Printz, Project Manager Regulatory Branch Enclosures PROJECT LOCATION I MU GILLIAM CREEK CULVERT LOCATION rille11111Hillt jaP"Ilt \1111 -' r- L VICINITY MAP NOT TO SCALE LOCATION MAP NOT TO SCALE REFERENCE: 579 LOCATION: APPLICANT: City of Tukwila Nws aotc-1-1-ol PROPOSED PROJECT: 40th - 42nd Avenue South - Phase III LAT: N 47.464972 IN: Gilliam Creek ADJACENT PROPERTY OWNERS: LONG: W-122.281181 NEAR/AT: City of Tukwila COUNTY: King PAGE 1 OF 10 DATE! July 2n1a STATF• WA REFERENCE NUMBER: 579 APPLICANT NAME: City of Tukwila PROPOSED PROJECT: 40th - 42nd Avenue South - Phase III LOCATION: Tukwila, WA SHEET 2 OF 10 DATE: August 2014 EXISTING EXISTING GROUND 21+00 1 1 0 10 20 SCALE IN FEET iev.it.r9. cz, In. .t__ - f T%lI EXISTING ONWL -- --- 200 190 20 210 0L------ 90 U 22+00 1 0 10 20 SCALE IN FEET 1+97.37 NNEL CONSTRUCTION le STORMWATER OUTFALL EXISTING 36" CULVERT BEVELED PIPE END WITH CONCRETE SLOPE :COLLAR REFERENCE NUMBER: 579 APPLICANT NAME: City of Tukwila PROPOSED PROJECT: 40th - 42nd Avenue South - Phase III STREAM BUFFE ii/ tou)s-aoll-t-7n 9 7 23+00 w z 220 --210 200 1190 LOCATION: Tukwila, WA SHEET 3 OF 10 I]ATE• Awn ust 7n1 d 1 I 1 ti0 42ND 204 i♦ 1 1 EX. 24" SS i Nt 12'I!W ' ' N `-' TOP F. 1 OI.! CULVERT 1 SCL D 210 200- COARSE BAND, SEE NOTE 4 CVD.t sot STREAMBED GRAVEL (36" THICK) co zz NOTE: OWHL NOT SHOWN DUE TO THE CULVERT ENTRANCE AND UPSTREAM EXISTING CONCRETE DAM. u3— uz 0 0 co z, EXISTING GROUND „soAR$ti,,,_,,. BAND REFERENCE NUMBER: 579 APPLICANT NAME: City of Tukwila PROPOSED PROJECT: 40th - 42nd Avenue South - Phase III LOCATION: Tukwila, WA SHEET 4 OF 10 DATE: August 2014 N 24+00 I)Uu3 S '-a.O I1-t-- 41 12eA;AsirrA vi-4e_IAA - Q N I U 220 210 200 (190 20 210- 200: 90l 25+00 REFERENCE NUMBER: 579 APPLICANT NAME: City of Tukwila PROPOSED PROJECT: 40th - 42nd Avenue South - Phase III ocvoe •r! 1 1 4 alb U ' 20 SCALEIN FEET r 4 t< UJu.S14.. c EXISTING GROUND 220 200 190 26+00 LOCATION: Tukwila, WA SHEET 5 OF 10 DATE: Auaust 2014 CL 42ND AVE S. • PROPOSED GRADE EX 12" G EX 4" G 24' SS PROPOSED OHWL R=96' 1 w wis 4 •- �►; �• •mow• 1-".yi:�j4':fi a ^..:f REFERENCE NUMBER: 579 APPLICANT NAME: City of Tukwila PROPOSED PROJECT: 40th - 42nd Avenue South - Phase III LOCATION: Tukwila, WA SHEET 6 OF 10 DATE: July 2014 CULVERT SECTION JOINT ELECTRICAL/ COMM. DUCTBANK 16'DIA CMP (10 GAUGE) MULTI -PLATE ARCHES CULVERT STREAMBED GRAVEL (36" THICK) EX 12 W EXISTING 36" CONC CULVERT CONCRETE FOOTING (2'x2') GRAVEL BASE (6") NOTES: 1, GRAVEL BORROW SHALL BE PER WSDOT STD SPECIFICATION 9-03.14(1). 2. STREAMBED GRAVEL SHALL CONSIST A WELL BLENDED MIXTURE OF 12" COBBLE (APPROX 80%), ONE MAN STREAM BOULDER (APPROX 10%), AND TWO MAN STREAM BOULDER (APPROX 10%), PER WSDOT STD SPECIFICATION 9-03.11(2) AND 9-03.11(3). tw s-aott4 7-oq sera P Lc 115A- ad l�l LL to r 0 r '' r 0 / / / / / / / / / / / / / / Q O WO(.) 0 CO lil —3 N 0 wza.> 04 zzwti 3 a<o� ul�,a -.. 11 I1 I I s 11± s 11 I1 i Ai1a / . __._ s7 7 31 s� / 3 • Q'- acs 2 • w 1— a. ti W0I-O C}..WU3 �za> a ZZLLIE CKUOv WJQ- I �n n 0 0 50 100 SCALE IN FEET MATCH EXISTING STREAM NEW OUTFALL(S) 1 1 MATCH EXISTING STREAM EXISTING CULVERT r rifriorktA Oe lCULVERT PROPOSED EXISTING STORM DRAIN PROPOSED ROADWAY FOOTPRINT NW5-4-°1 REFERENCE NUMBER: APPLICANT NAME: City of Tukwila PROPOSED PROJECT: 40th - 42nd Avenue South - Phase 1I1 LOCATION: Tukwila, WA SHEET 10 OF 10 DATE: September 2014 EXISTING DITCH / / / / / / EXISTING DITCH f US Army Corps of Engineers Seattle District NATIONWIDE PERMIT 14 Terms and Conditions Effective Date: June 15, 2012 A. Description of Authorized Activities B. Corps National General Conditions for all NWPs C. Corps Seattle District Regional General Conditions D. Corps Regional Specific Conditions for this NWP E. State 401 Certification General Conditions F. State 401 Certification Specific Conditions for this NWP G. EPA 401 Certification General Conditions H. EPA 401 Certification Specific Conditions for this NWP I. Coastal Zone Management Consistency Response for this NWP In addition to any special condition that may be required on a case -by -case basis by the District Engineer, the following terms and conditions must be met, as applicable, for a Nationwide Permit authorization to be valid in Washington State. A. DESCRIPTION OF AUTHORIZED ACTIVITIES 14. Linear Transportation Projects. Activities required for the construction, expansion, modification, or improvement of linear transportation projects (e.g., roads, highways, railways, trails, airport runways, and taxiways) in waters of the United States. For linear transportation projects in non -tidal waters, the discharge cannot cause the loss of greater than 1/2-acre of waters of the United States. For linear transportation projects in tidal waters, the discharge cannot cause the loss of greater than 1/3-acre of waters of the United States. Any stream channel modification, including bank stabilization, is limited to the minimum necessary to construct or protect the linear transportation project; such modifications must be in the immediate vicinity of the project. This NWP also authorizes temporary structures, fills, and work necessary to construct the linear transportation project. Appropriate measures must be taken to maintain normal downstream flows and minimize flooding to the maximum extent practicable, when temporary structures, work, and discharges, including cofferdams, are necessary for construction activities, access fills, or dewatering of construction sites. Temporary fills must consist of materials, and be placed in a manner, that will not be eroded by expected high flows. Temporary fills must be removed in their entirety and the affected areas returned to pre -construction elevations. The areas affected by temporary fills must be revegetated, as appropriate. This NWP cannot be used to authorize non -linear features commonly associated with transportation projects, -such as vehicle maintenance or storage buildings, parking lots, train stations, or aircraft hangars. Notification: The permittee must submit a pre -construction notification to the district engineer prior to commencing the activity if: (1) the loss of waters of the United States exceeds 1/10-acre; or (2) there is a discharge in a special aquatic site, including wetlands. (See general condition 31.) (Sections 10 and 404) Note: Some discharges for the construction of farm roads or forest roads, or temporary roads for moving mining equipment, may qualify for an exemption under Section 404(f) of the Clean Water Act (see 33 CFR 323.4). B. CORPS NATIONAL GENERAL CONDITIONS FOR ALL NWPs Note: To qualify for NWP authorization, the prospective permittee must comply with the following general conditions, as applicable, in addition to any regional or case -specific conditions imposed by the division engineer or district engineer. Prospective permittees should contact the appropriate Corps district office to determine if regional conditions have been imposed on an NWP. Prospective permittees should also contact the appropriate Corps district office to determine the status of Clean Water Act Section 401 water quality certification and/or Coastal Zone Management Act consistency for an NWP. Every person who may wish to obtain permit authorization under one or more NWPs, or who is currently relying on an existing or prior permit authorization under one or more NWPs, has been and is on notice that all of the provisions of 33 CFR § 330.1 through 330.6 apply to every NWP authorization. Note especially 33 CFR § 330.5 relating to the modification, suspension, or revocation of any NWP authorization. 1. Navigation. (a) No activity may cause more than a minimal adverse effect on navigation. (b) Any safety lights and signals prescribed by the U.S. Coast Guard, through regulations or otherwise, must be installed and maintained at the permittee's expense on authorized facilities in navigable waters of the United States. (c) The permittee understands and agrees that, if future operations by the United States require the removal, relocation, or other alteration, of the structure or work herein authorized, or if, in the opinion of the Secretary of the Army or his authorized representative, said structure or work shall cause unreasonable obstruction to the free navigation of the navigable waters, the permittee will be required, upon due notice from the Corps of Engineers, to remove, relocate, or alter the structural work or obstructions caused thereby, without expense to the United States. No claim shall be made against the United States on account of any such removal or alteration. 2. Aquatic Life Movements. No activity may substantially disrupt the necessary life cycle movements of those species of aquatic life indigenous to the waterbody, including those species that normally migrate through the area, unless the activity's primary purpose is to impound water. All permanent and temporary crossings of waterbodies shall be suitably culverted, bridged, or otherwise designed and constructed to maintain low flows to sustain the movement of those aquatic species. 3. Spawning Areas. Activities in spawning areas during spawning seasons must be avoided to the maximum extent practicable. Activities that result in the physical destruction (e.g., through excavation, fill, or downstream smothering by substantial turbidity) of an important spawning area are not authorized. 4. Migratory Bird Breeding Areas. Activities in waters of the United States that serve as breeding areas for migratory birds must be avoided to the maximum extent practicable. 5. Shellfish Beds. No activity may occur in areas of concentrated shellfish populations, unless the activity is directly related to a shellfish harvesting activity authorized by NWPs 4 and 48, or is a shellfish seeding or habitat restoration activity authorized by NWP 27. 6. Suitable Material. No activity may use unsuitable material (e.g., trash, debris, car bodies, asphalt, etc.). Material used for construction or discharged must be free from toxic pollutants in toxic amounts (see Section 307 of the Clean Water Act). 7. Water Supply Intakes. No activity may occur in the proximity of a public water supply intake, except where the activity is for the repair or improvement of public water supply intake structures or adjacent bank stabilization. 8. Adverse Effects From Impoundments. If the activity creates an impoundment of water, adverse effects to the aquatic system due to accelerating the passage of water, and/or restricting its flow must be minimized to the maximum extent practicable. 9. Management of Water Flows. To the maximum extent practicable, the pre -construction course, condition, capacity, and location of open waters must be maintained for each activity, including stream channelization and storm water management activities, except as provided below. The activity must be constructed to withstand expected high flows. The activity must not restrict or impede the passage of normal or high flows, unless the primary purpose of the activity is to impound water or manage high flows. The activity may alter the pre -construction course, condition, capacity, and location of open waters if it benefits the aquatic environment (e.g., stream restoration or relocation activities). 10. Fills Within 100-Year Floodplains. The activity must comply with applicable FEMA-approved state or local floodplain management requirements. 11. Equipment. Heavy equipment working in wetlands or mudflats must be placed on mats, or other measures must be taken to minimize soil disturbance. 12. Soil Erosion and Sediment Controls. Appropriate soil erasion and sediment controls must be used and maintained in effective operating condition during construction, and all exposed soil and other fills, as well as any work below the ordinary high water mark or high tide line, must be permanently stabilized at the earliest practicable date. Permittees are encouraged to perform work within waters of the United States during periods of low -flow or no -flow. 13. Removal of Temporary Fills. Temporary fills must be removed in their entirety and the affected areas returned to pre -construction elevations. The affected areas must be revegetated, as appropriate. 14. Proper Maintenance. Any authorized structure or fill shall be properly maintained, including maintenance to ensure public safety and compliance with applicable NWP general conditions, as well as any activity -specific conditions added by the district engineer to an NWP authorizatiion. 15. Single and Complete Project. The activity must be a single and complete project. The same NWP cannot be used more than once for the same single and complete project. 16. Wild and Scenic Rivers. No activity may occur in a component of the National Wild and Scenic River System, or in a river officially designated.by Congress as a "study river" for possible inclusion in the system while the river is in an official study status, unless the appropriate Federal agency with direct management responsibility for such river, has determined in writing that the proposed activity will not adversely affect the Wild and Scenic River designation or study status. Information on Wild and Scenic Rivers may be obtained from the appropriate Federal land management agency responsible for the designated Wild and Scenic River or study river (e.g., National Park Service, U.S. Forest Service, Bureau of Land Management, U.S. Fish and Wildlife Service). 17. Tribal Rights. No activity or its operation may impair reserved tribal rights, including, but not limited to, reserved water rights and treaty fishing and hunting rights, 18. Endangered Species. (a) No activity is authorized under any NWP which is likely to directly or indirectly jeopardize the continued existence of a threatened or endangered species or a species proposed for such designation, as identified under the Federal Endangered Species Act (ESA), or which will directly or indirectly destroy or adversely modify the critical habitat of such species. No activity is authorized under any NWP which "may affect" a listed species or critical habitat, unless Section 7 consultation addressing the effects of the proposed activity has been completed. (b) Federal agencies should follow their own procedures for complying with the requirements of the ESA. Federal permittees must provide the district engineer with the appropriate documentation to demonstrate compliance with those requirements. The district engineer will review the documentation and determine whether it is sufficient to address ESA compliance for the NWP activity, or whether additional ESA consultation is necessary. (c) Non-federal permittees must submit a pre -construction notification to the district engineer if any listed species or designated critical habitat might be affected or is in the vicinity of the project, or if the project is located in designated critical habitat, and shall not begin work on the activity until notified by the district engineer that the requirements of the ESA have been satisfied and that the activity is authorized. For activities that might affect Federally -listed endangered or threatened species or designated critical habitat, the pre -construction notification must include the name(s) of the endangered or threatened species that might be affected by the proposed work or that utilize the designated critical habitat that might be affected by the proposed work. The district engineer will determine whether the proposed activity "may affect" or will have "no effect" to listed species and designated critical habitat and will notify the non -Federal applicant of the Corps' determination within 45 days of receipt of a complete pre - construction notification. In cases where the non -Federal applicant has identified listed species or critical habitat that might be affected or is in the vicinity of the project, and has so notified the Corps, the applicant shall not begin work until the Corps has provided notification the proposed activities will have "no effect" on listed species or critical habitat, or until Section 7 consultation has been completed. If the non -Federal applicant has not heard back from the Corps within 45 days, the applicant must still wait for notification from the Corps. (d) As a result of formal or informal consultation with the FWS or NMFS the district engineer may add species -specific regional endangered species conditions to the NWPs. (e) Authorization of an activity by a NWP does not authorize the "take" ofa threatened or endangered species as defined under the ESA. In the absence of separate authorization (e.g., an ESA Section 10 Permit, a Biological Opinion with "incidental take" provisions, etc.) from the U.S. FWS or the NMFS, The Endangered Species Act prohibits any person subject to the jurisdiction of the United States to take a listed species, where "take" means to harass, harm, pursue, hunt, shoot, wound, kill, trap, capture, or collect, or to attempt to engage in any such conduct. The word "harm" in the definition of "take" means an act which actually kills or injures wildlife. Such an act may include significant habitat modification or degradation where it actually kills or injures wildlife by significantly impairing essential behavioral patterns, including breeding, feeding or sheltering. (f) Information on the location of threatened and endangered species and their critical habitat can be obtained directly from the offices of the U.S. FWS and NMFS or their world wide web pages at http://www.fws.gov/ or http://www.fws.gov/ipac andlittp://www,noaa.gov/fisheries.html respectively. 19. Migratory Birds and Bald and Golden Eagles. The permittee is responsible for obtaining any "take" permits required under the U.S. Fish and Wildlife Service's regulations governing compliance with the Migratory Bird Treaty Act or the Bald and Golden Eagle Protection Act. The permittee should contact the appropriate local office of the U.S. Fish and Wildlife Service to determine if such "take" permits are required for a particular activity. 20. Historic Properties. (a) In cases where the district engineer determines that the activity may affect properties listed, or eligible for listing, in the National Register of Historic Places, the activity is not authorized, until the requirements of Section 106 of the National Historic Preservation Act (NHPA) have been satisfied. (b) Federal permittees should follow their own procedures for complying with the requirements of Section 106 of the National Historic Preservation Act. Federal permittees must provide the district engineer with the appropriate documentation to demonstrate compliance with those requirements. The district engineer will review the documentation and determine whether it is sufficient to address section 106 compliance for the NWP activity, or whether additional section 106 consultation is necessary. (c) Non-federal permittees must submit a pre -construction notification to the district engineer if the authorized activity may have the potential to cause effects to any historic properties listed on, determined to be eligible for listing on, or potentially eligible for listing on the National Register of Historic Places, including previously unidentified properties. For such activities, the pre -construction notification must state which historic properties may be affected by the proposed work or include a vicinity map indicating the location of the historic properties or the potential for the presence of historic properties. Assistance regarding information on the location of or potential for the presence of historic resources can be sought from the State Historic Preservation Officer or Tribal Historic Preservation Officer, as appropriate, and the National Register of Historic Places (see 33 CFR 330.4(g)). When reviewing pre -construction notifications, district engineers will comply with the current procedures for addressing the requirements of Section 106 of the National Historic Preservation Act. The district engineer shall make a reasonable and good faith effort to carry out appropriate identification efforts, which may include background research, consultation, oral history interviews, sample field investigation, and field survey. Based on the information submitted and these efforts, the district engineer shall determine whether the proposed activity has the potential to cause an effect on the historic properties. Where the non -Federal applicant has identified historic properties on which the activity may have the potential to cause effects and so notified the Corps, the non -Federal applicant shall not begin the activity until notified by the district engineer either that the activity has no potential to cause effects or that consultation under Section 106 of the NI -IPA has been completed. (d) The district engineer will notify the prospective permittee within 45 days of receipt of a complete pre -construction notification whether NHPA Section 106 consultation is required. Section 106 consultation is not required when the Corps determines that the activity does not have the potential to cause effects on historic properties (see 36 CFR §800.3(a)). If NHPA section 106 consultation is required and will occur, the district engineer will notify the non -Federal applicant that he or she cannot begin work until Section 106 consultation is completed. If the non -Federal applicant has not heard back from the Corps within 45 days, the applicant must still wait for notification from the Corps. (e) Prospective permittees should be aware that section 110k of the NHPA (16 U.S.C. 470h-2(k)) prevents the Corps from granting a permit or other assistance to an applicant who, with intent to avoid the requirements of Section 106 of the NHPA, has intentionally significantly adversely affected a historic property to which the permit would relate, or having legal power to prevent it, allowed such significant adverse effect to occur, unless the Corps, after consultation with the Advisory Council on Historic Preservation (ACHP), determines that circumstances justify granting such assistance despite the adverse effect created or permitted by the applicant. If circumstances justify granting the assistance, the Corps is required to notify the ACHP and provide documentation specifying the circumstances, the degree of damage to the integrity of any historic properties affected, and proposed mitigation. This documentation must include any views obtained from the applicant, SHPO/THPO, appropriate Indian tribes if the undertaking occurs on or affects historic properties on tribal lands or affects properties of interest to those tribes, and other parties known to have a legitimate interest in the impacts to the permitted activity on historic properties. 21. Discovery of Previously Unknown Remains and Artifacts. If you discover any previously unknown historic, cultural or archeological remains and artifacts while accomplishing the activity authorized by this permit, you must immediately notify the district engineer of what you have found, and to the maximum extent practicable, avoid construction activities that may affect the remains and artifacts until the required coordination has been completed. The district engineer will initiate the Federal, Tribal and state coordination required to determine if the items or remains warrant a recovery effort or if the site is eligible for listing in the National Register of Historic Places. 22. Designated Critical Resource Waters. Critical resource waters include, NOAA-managed marine sanctuaries and marine monuments, and National Estuarine Research Reserves. The district engineer may designate, after notice and opportunity for public comment, additional waters officially designated by a state as having particular environmental or ecological significance, such as outstanding national resource waters or state natural heritage sites. The district engineer may also designate additional critical resource waters after notice and opportunity for public comment. (a) Discharges of dredged or fill material into waters of the United States are not authorized by NWPs 7, 12, 14, 16, 17, 21, 29, 31, 35, 39, 40, 42, 43, 44, 49, 50, 51, and 52 for any activity within, or directly affecting, critical resource waters, including wetlands adjacent to such waters. (b) For NWPs 3, 8, 10, 13,15, 18, 19, 22, 23, 25, 27, 28, 30, 33, 34, 36, 37, and 38, notification is required in accordance with general condition 31, for any activity proposed in the designated critical resource waters including wetlands adjacent to those waters. The district engineer may authorize activities under these NWPs only after it is determined that the impacts to the critical resource waters will be no more than minimal. 23. Mitigation. The district engineer will consider the following factors when determining appropriate and practicable mitigation necessary to ensure that adverse effects on the aquatic environment are minimal: (a) The activity must be designed and constructed to avoid and minimize adverse effects, both temporary and permanent, to waters of the United States to the maximum extent practicable at the project site (i.e., on site). (b) Mitigation in all its forms (avoiding, minimizing, rectifying, reducing, or compensating for resource losses) will be required to the extent necessary to ensure that the adverse effects to the aquatic environment are minimal. (c) Compensatory mitigation at a minimum one -for -one ratio will be required for all wetland losses that exceed 1/10-acre and require pre -construction notification, unless the district engineer determines in writing that either some other form of mitigation would be more environmentally appropriate or the adverse effects of the proposed activity are minimal, and provides a project -specific waiver of this requirement. For wetland losses of 1/10-acre or less that require pre -construction notification, the district engineer may determine on a case -by -case basis that compensatory mitigation is required to ensure that the activity results in minimal adverse effects on the aquatic environment. Compensatory mitigation projects provided to offset losses of aquatic resources must comply with the applicable provisions of 33 CFR part 332. (1) The prospective permittee is responsible for proposing an appropriate compensatory mitigation option if compensatory mitigation is necessary to ensure that the activity results in minimal adverse effects on the aquatic environment. (2) Since the likelihood of success is greater and the impacts to potentially valuable uplands are reduced, wetland restoration should be the first compensatory mitigation option considered. (3) If permittee-responsible mitigation is the proposed option, the prospective permittee is responsible for submitting a mitigation plan. A conceptual or detailed mitigation plan may be used by the district engineer to make the decision on the NWP verification request, but a final mitigation plan that addresses the applicable requirements of 33 CFR 332.4(c)(2) - (14) must be approved by the district engineer before the permittee begins work in waters of the United States, unless the district engineer determines that prior approval of the final mitigation plan is not practicable or not necessary to ensure timely completion of the required compensatory mitigation (see 33 CFR 332.3(k)(3)). (4) If mitigation bank or in -lieu fee program credits are the proposed option, the mitigation plan only needs to address the baseline conditions at the impact site and the number of credits to be provided. (5) Compensatory mitigation requirements (e.g., resource type and amount to be provided as compensatory mitigation, site protection, ecological performance standards, monitoring requirements) may be addressed through conditions added to the NWP authorization, instead of components of a compensatory mitigation plan. (d) For losses of streams or other open waters that require pre -construction notification, the district engineer may require compensatory mitigation, such as stream rehabilitation, enhancement, or preservation, to ensure that the activity results in minimal adverse effects on the aquatic environment. (e) Compensatory mitigation will not be used to increase the acreage losses allowed by the acreage limits of the NWPs. For example, if an NWP has an acreage limit of 1/2-acre, it cannot be used to authorize any project resulting in the loss of greater than 1/2-acre of waters of the United States, even if compensatory mitigation is provided that replaces or restores some of the lost waters. However, compensatory mitigation can and should be used, as necessary, to ensure that a project already meeting the established acreage limits also satisfies the minimal impact requirement associated with the NWPs, (t) Compensatory mitigation plans for projects in or near streams or other open waters will normally include a requirement for the restoration or establishment, maintenance, and legal protection (e.g., conservation easements) of riparian areas next to open waters. In some cases, riparian areas may be the only compensatory mitigation required. Riparian areas should consist of native species. The width of the required riparian area will address documented water quality or aquatic habitat loss concerns. Normally, the riparian area will be 25 to 50 feet wide on each side of the stream, but the district engineer may require slightly wider riparian areas to address documented water quality or habitat loss concerns. If it is not possible to establish a riparian area on both sides of a stream, or if the waterbody is a lake or coastal waters, then restoring or establishing a riparian area along a single bank or shoreline may be sufficient. Where both wetlands and open waters exist on the project site, the district engineer will determine the appropriate compensatory mitigation (e.g., riparian areas and/or wetlands compensation) based on what is best for the aquatic environment on a watershed basis. In cases where riparian areas are determined to be the most appropriate form of compensatory mitigation, the district engineer may waive or reduce the requirement to provide wetland compensatory mitigation for wetland losses. (g) Permittees may propose the use of mitigation banks, in -lieu fee programs, or separate permittee- responsible mitigation. For activities resulting in the loss of marine or estuarine resources, permittee- responsible compensatory mitigation may be environmentally preferable if there are no mitigation banks or in -lieu fee programs in the area that have marine or estuarine credits available for sale or transfer to the permittee. For permittee-responsible mitigation, the special conditions of the NWP verification must clearly indicate the party or parties responsible for the implementation and performance of the compensatory mitigation project, and, if required, its long-term management. (h) Where certain functions and services of waters of the United States are permanently adversely affected, such as the conversion of a forested or scrub -shrub wetland to a herbaceous wetland in a permanently maintained utility line right-of-way, mitigation may be required to reduce the adverse effects of the project to the minimal level. 24. Safety of Impoundment Structures. To ensure that all impoundment structures are safely designed, the district engineer may require non -Federal applicants to demonstrate that the structures comply with established state dam safety criteria or have been designed by qualified persons. The district engineer may also require documentation that the design has been independently reviewed by similarly qualified persons, and appropriate modifications made to ensure safety. 25. Water Quality. Where States and authorized Tribes, or EPA where applicable, have not previously certified compliance of an NWP with CWA Section 401, individual 401 Water Quality Certification must be obtained or waived (see 33 CFR 330.4(c)). The district engineer or State or Tribe may require additional water quality management measures to ensure that the authorized activity does not result in more than minimal degradation of water quality. 26. Coastal Zone Management. In coastal states where an NWP has not previously received a state coastal zone management consistency concurrence, an individual state coastal zone management consistency concurrence must be obtained, or a presumption of concurrence must occur (see 33 CFR 330.4(d)). The district engineer or a State may require additional measures to ensure that the authorized activity is consistent with state coastal zone management requirements. 27. Regional and Case -By -Case Conditions. The activity must comply with any regional conditions that may have been added by the Division Engineer (see 33 CFR 330.4(e)) and with any case specific conditions added by the Corps or by the state, Indian Tribe, or U.S. EPA in its section 401 Water Quality Certification, or by the state in its Coastal Zone Management Act consistency determination. 28. Use of Multiple Nationwide Permits. The use of more than one NWP for a single and complete project is prohibited, except when the acreage loss of waters of the United States authorized by the NWPs does not exceed the acreage limit of the NWP with the highest specified acreage Limit. For example, if a road crossing over tidal waters is constructed under NWP 14, with associated bank stabilization authorized by NWP 13, the maximum acreage loss of waters of the United States for the total project cannot exceed 1/3-acre. 29. Transfer of Nationwide Permit Verifications. If the permittee sells the property associated with a nationwide permit verification, the permittee may transfer the nationwide permit verification to the new owner by submitting a letter to the appropriate Corps district office to validate the transfer. A copy of the nationwide permit verification must be attached to the letter, and the letter must contain the following statement and signature: "When the structures or work authorized by this nationwide permit are still in existence at the time the property is transferred, the terms and conditions of this nationwide permit, including any special conditions, will continue to be binding on the new owner(s) of the property. To validate the transfer of this nationwide permit and the associated liabilities associated with compliance with its terms and conditions, have the transferee sign and date below." (Transferee) (Date) 30. Compliance Certification. Each permittee who receives an NWP verification letter from the Corps must provide a signed certification documenting completion of the authorized activity and any required compensatory mitigation. The success of any required permittee-responsible mitigation, including the achievement of ecological performance standards, will be addressed separately by the district engineer. The Corps will provide the permittee the certification document with the NWP verification letter. The certification document will include: (a) A statement that the authorized work was done in accordance with the NWP authorization, including any general, regional, or activity -specific conditions; (b) A statement that the implementation of any required compensatory mitigation was completed in accordance with the permit conditions. If credits from a mitigation bank or in -lieu fee program are used to satisfy the compensatory mitigation requirements, the certification must include the documentation required by 33 CFR 332.3(1)(3) to confirm that the permittee secured the appropriate number and resource type of credits; and (c) The signature of the permittee certifying the completion of the work and mitigation. 31. Pre -Construction Notification. (a) Timing, Where required by the terms of the NWP, the prospective permittee must notify the district engineer by submitting a pre -construction notification (PCN) as early as possible. The district engineer must determine if the PCN is complete within 30 calendar days of the date of receipt and, if the PCN is determined to be incomplete, notify the prospective permittee within that 30 day period to request the additional information necessary to make the PCN complete. The request must specify the information needed to make the PCN complete. As a general rule, district engineers will request additional information necessary to make the PCN complete only once. However, if the prospective permittee does not provide all of the requested information, then the district engineer will notify the prospective permittee that the PCN is still incomplete and the PCN review process will not commence until all of the requested information has been received by the district engineer. The prospective permittee shall not begin the activity until either: (I) He or she is notified in writing by the district engineer that the activity may proceed under the NWP with any special conditions imposed by the district or division engineer; or (2) 45 calendar days have passed from the district engineer's receipt of the complete PCN and the prospective permittee has not received written notice from the district or division engineer. However, if the permittee was required to notify the Corps pursuant to general condition 18 that listed species or critical habitat might be affected or in the vicinity of the project, or to notify the Corps pursuant to general condition 20 that the activity may have the potential to cause effects to historic properties, the permittee cannot begin the activity until receiving written notification from the Corps that there is "no effect" on listed species or "no potential to cause effects" on historic properties, or that any consultation required under Section 7 of the Endangered Species Act (see 33 CFR 330.4(0) and/or Section 106 of the National Historic Preservation (see 33 CFR 330.4(g)) has been completed. Also, work cannot begin under NWPs 21, 49, or 50 until the permittee has received written approval from the Corps. If the proposed activity requires a written waiver to exceed specified limits of an NWP, the permittee may not begin the activity until the district engineer issues the waiver. If the district or division engineer notifies the permittee in writing that an individual permit is required within 45 calendar days of receipt of a complete PCN, the permittee cannot begin the activity until an individual permit has been obtained. Subsequently, the permittee's right to proceed under the NWP may be modified, suspended, or revoked only in accordance with the procedure set forth in 33 CFR 330.5(d)(2). (b) Contents of Pre -Construction Notification: The PCN must be in writing and include the following information: (1) Name, address and telephone numbers of the prospective permittee; (2) Location of the proposed project; (3) A description of the proposed project; the project's purpose; direct and indirect adverse environmental effects the project would cause, including the anticipated amount of loss of water of the United States expected to result from the NWP activity, in acres, linear feet, or other appropriate unit of measure; any other NWP(s), regional general permit(s), or individual permit(s) used or intended to be used to authorize any part of the proposed project or any related activity. The description should be sufficiently detailed to allow the district engineer to determine that the adverse effects of the project will be minimal and to determine the need for compensatory mitigation. Sketches should be provided when necessary to show that the activity complies with the terms of the NWP. (Sketches usually clarify the project and when provided results in a quicker decision. Sketches should contain sufficient detail to provide an illustrative description of the proposed activity (e.g., a conceptual plan), but do not need to be detailed engineering plans); (4) The PCN must include a delineation of wetlands, other special aquatic sites, and other waters, such as lakes and ponds, and perennial, intermittent, and ephemeral streams, on the project site. Wetland delineations must be prepared in accordance with the current method required by the Corps. The permittee may ask the Corps to delineate the special aquatic sites and other waters on the project site, but there may be a delay if the Corps does the delineation, especially if the project site is large or contains many waters of the United States. Furthermore, the 45 day period will not start until the delineation has been submitted to or completed by the Corps, as appropriate; (5) If the proposed activity will result in the loss of greater than 1/10-acre of wetlands and a PCN is required, the prospective permittee must submit a statement describing how the mitigation requirement will be satisfied, or explaining why the adverse effects are minimal and why compensatory mitigation should not be required. As an alternative, the prospective permittee may submit a conceptual or detailed mitigation plan. (6) If any listed species or designated critical habitat might be affected or is in the vicinity of the project, or if the project is located in designated critical habitat, for non -Federal applicants the PCN must include the name(s) of those endangered or threatened species that might be affected by the proposed work or utilize the designated critical habitat that may be affected by the proposed work. Federal applicants must provide documentation demonstrating compliance with the Endangered Species Act; and (7) For an activity that may affect a historic property listed on, determined to be eligible for listing on, or potentially eligible for listing on, the National Register of Historic Places, for non -Federal applicants the PCN must state which historic property may be affected by the proposed work or include a vicinity map indicating the location of the historic property. Federal applicants must provide documentation demonstrating compliance with Section 106 of the National Historic Preservation Act. (c) Form of Pre -Construction Notification: The standard individual permit application form (Form ENG 4345) may be used, but the completed application form must clearly indicate that it is a PCN and must include all of the information required in paragraphs (b)(1) through (7) of this general condition. A letter containing the required information may also be used. (d) Agency Coordination: (1) The district engineer will consider any comments from Federal and state agencies concerning the proposed activity's compliance with the terms and conditions of the NWPs and the need for mitigation to reduce the project's adverse environmental effects to a minimal level. (2) For all NWP activities that require pre -construction notification and result in the loss of greater than 1/2- acre of waters of the United States, for NWP 21, 29, 39, 40, 42, 43, 44, 50, 51, and 52 activities that require pre -construction notification and will result in the loss of greater than 300 linear feet of intermittent and ephemeral stream bed, and for all NWP 48 activities that require pre -construction notification, the district engineer will immediately provide (e.g., via e-mail, facsimile transmission, overnight mail, or other expeditious manner) a copy of the complete PCN to the appropriate Federal or state offices (U.S. FWS, state natural resource or water quality agency, EPA, State Historic Preservation Officer (SHPO) or Tribal Historic Preservation Office (THPO), and, if appropriate, the NMFS). With the exception of NWP 37, these agencies will have 10 calendar days from the date the material is transmitted to telephone or fax the district engineer notice that they intend to provide substantive, site -specific comments. The comments must explain why the agency believes the adverse effects will be more than minimal. If so contacted by an agency, the district engineer will wait an additional 15 calendar days before making a decision on the pre -construction notification. The district engineer will fully consider agency comments received within the specified time frame concerning the proposed activity's compliance with the terms and conditions of the NWPs, including the need for mitigation to ensure the net adverse environmental effects to the aquatic environment of the proposed activity are minimal. The district engineer will provide no response to the resource agency, except as provided below. The district engineer will indicate in the administrative record associated with each pre -construction notification that the resource agencies' concerns were considered. For NWP 37, the emergency watershed protection and rehabilitation activity may proceed immediately in cases where there is an unacceptable hazard to life or a significant loss of property or economic hardship will occur. The district engineer will consider any comments received to decide whether the NWP 37 authorization should be modified, suspended, or revoked in accordance with the procedures at 33 CFR 330.5. (3) In cases of where the prospective permittee is not a Federal agency, the district engineer will provide a response to NMFS within 30 calendar days of receipt of any Essential Fish Habitat conservation recommendations, as required by Section 305(b)(4)(B) of the Magnuson -Stevens Fishery Conservation and Management Act. (4) Applicants are encouraged to provide the Corps with either electronic files or multiple copies of pre - construction notifications to expedite agency coordination. District Engineer's Decision 1. In reviewing the PCN for the proposed activity, the district engineer will determine whether the activity authorized by the NWP will result in more than minimal individual or cumulative adverse environmental effects or may be contrary to the public interest. For a linear project, this determination will include an evaluation of the individual crossings to determine whether they individually satisfy the terms and conditions of the NWP(s), as well as the cumulative effects caused by all of the crossings authorized by NWP. If an applicant requests a waiver of the 300 linear foot limit on impacts to intermittent or ephemeral streams or of an otherwise applicable limit, as provided for in NWPs 13, 21, 29, 36, 39, 40, 42, 43, 44, 50, 51 or 52, the district engineer will only grant the waiver upon a written determination that the NWP activity will result in minimal adverse effects. When making minimal effects determinations the district engineer will consider the direct and indirect effects caused by the NWP activity. The district engineer will also consider site specific factors, such as the environmental setting in the vicinity of the NWP activity, the type of resource that will be affected by the NWP activity, the functions provided by the aquatic resources that will be affected by the NWP activity, the degree or magnitude to which the aquatic resources perform those functions, the extent that aquatic resource functions will be lost as a result of the NWP activity (e.g., partial or complete loss), the duration of the adverse effects (temporary or permanent), the importance of the aquatic resource functions to the region (e.g., watershed or ecoregion), and mitigation required by the district engineer. If an appropriate functional assessment method is available and practicable to use, that assessment method may be used by the district engineer to assist in the minimal adverse effects determination. The district engineer may add case -specific special conditions to the NWP authorization to address site -specific environmental concerns. 2. If the proposed activity requires a PCN and will result in a loss of greater than 1/10-acre of wetlands, the prospective permittee should submit a mitigation proposal with the PCN. Applicants may also propose compensatory mitigation for projects with smaller impacts. The district engineer will consider any proposed compensatory mitigation the applicant has included in the proposal in determining whether the net adverse enviromnental effects to the aquatic environment of the proposed activity are minimal. The compensatory mitigation proposal may be either conceptual or detailed. If the district engineer determines that the activity complies with the terms and conditions of the NWP and that the adverse effects on the aquatic environment are minimal, after considering mitigation, the district engineer will notify the permittee and include any activity -specific conditions in the NWP verification the district engineer deems necessary. Conditions for compensatory mitigation requirements must comply with the appropriate provisions at 33 CFR 332.3(k). The district engineer must approve the final mitigation plan before the permittee commences work in waters of the United States, unless the district engineer determines that prior approval of the final mitigation plan is not practicable or not necessary to ensure timely completion of the required compensatory mitigation. If the prospective permittee elects to submit a compensatory mitigation plan with the PCN, the district engineer will expeditiously review the proposed compensatory mitigation plan. The district engineer must review the proposed compensatory mitigation plan within 45 calendar days of receiving a complete PCN and determine whether the proposed mitigation would ensure no more than minimal adverse effects on the aquatic environment. If the net adverse effects of the project on the aquatic environment (after consideration of the compensatory mitigation proposal) are determined by the district engineer to be minimal, the district engineer will provide a timely written response to the applicant. The response will state that the project can proceed under the terms and conditions of the NWP, including any activity -specific conditions added to the NWP authorization by the district engineer. 3. If the district engineer determines that the adverse effects of the proposed work are more than minimal, then the district engineer will notify the applicant either: (a) That the project does not qualify for authorization under the NWP and instruct the applicant on the procedures to seek authorization under an individual permit; (b) that the project is authorized under the NWP subject to the applicant's submission of a mitigation plan that would reduce the adverse effects on the aquatic environment to the minimal Ievel; or (c) that the project is authorized under the NWP with specific modifications or conditions. Where the district engineer determines that mitigation is required to ensure no more than minimal adverse effects occur to the aquatic environment, the activity will be authorized within the 45-day PCN period, with activity -specific conditions that state the mitigation requirements. The authorization will include the necessary conceptual or detailed mitigation or a requirement that the applicant submit a mitigation plan that would reduce the adverse effects on the aquatic environment to the minimal level. When mitigation is required, no work in waters of the United States may occur until the district engineer has approved a specific mitigation plan or has determined that prior approval of a final mitigation plan is not practicable or not necessary to ensure timely completion of the required compensatory mitigation. Further Information 1. District Engineers have authority to determine if an activity complies with the terms and conditions of an NWP. 2. NWPs do not obviate the need to obtain other federal, state, or local permits, approvals, or authorizations required by law. 3. NWPs do not grant any property rights or exclusive privileges. 4. NWPs do not authorize any injury to the property or rights of others. 5. NWPs do not authorize interference with any existing or proposed Federal project. C. CORPS SEATTLE DISTRICT REGIONAL GENERAL CONDITIONS 1. Aquatic Resources Requiring Special Protection. Activities resulting in a loss of waters of the United States in a mature forested wetland, bog, bog -like wetland, aspen -dominated wetland, alkali wetland, wetlands in a dunal system along the Washington coast, vernal pools, camas prairie wetlands, estuarine wetlands, and wetlands in coastal lagoons cannot be authorized by a NWP, except by the following NWPs: NWP 3 — Maintenance NWP 20 — Oil Spill Cleanup NWP 32 — Completed Enforcement Actions NWP 38 — Cleanup of Hazardous and Toxic Waste In order to use one of the above -referenced NWPs in any of the aquatic resources requiring special protection, you must submit a pre -construction notification to the District Engineer in accordance with Nationwide Permit General Condition 31 (Pre -Construction Notification) and obtain written approval before commencing work. 2. Commencement Bay. The following NWPs may not be used to authorize activities located in the Commencement Bay Study Area (see Figure 1 at www.nws.usace.army.mil, select Regulatory Permits then Permit Guidebook, then Nationwide Permits) requiring Department of the Army authorization: NWP 12 — Utility Line Activities (substations) NWP 13 — Bank Stabilization NWP 14 — Linear Transportation Projects NWP 23 — Approved Categorical Exclusions NWP 29 — Residential Developments NWP 39 — Commercial and Institutional Developments NWP 40 — Agricultural Activities NWP 41 — Reshaping Existing Drainage Ditches NWP 42 — Recreational Facilities NWP 43 — Stormwater Management Facilities 3. New Bank Stabilization Prohibition Areas in Tidal Waters of Puget Sound. Activities involving new bank stabilization in tidal waters in Water Resource Inventory Areas (WRIAs) 8, 9, 10, 11, and 12 (within the specific area identified on Figure 2 at www.nws.usace.army.mil, select Regulatory Permits then Permit Guidebook, then Nationwide Permits) cannot be authorized by a NWP. 4. Bank Stabilization. Any project including new or maintenance bank stabilization activities requires pre -construction notification to the District Engineer in accordance with Nationwide Permit General Condition 31 for Pre -Construction Notification. This requirement does not apply to maintenance work exempt by 33 CFR 323.4 (a)(2). Each notification must also include the following information: a. Need for the work, including the cause of the erosion and the threat posed to structures, infrastructure, and/or public safety. The notification must also include a justification for the need to place fill or structures waterward of the line of the Corps' jurisdiction (typically, the ordinary high water mark or mean higher high water mark). b. Current and expected post -project sediment movement and deposition patterns in and near the project area. In tidal waters, describe the location and size of the nearest bluff sediment sources (feeder bluffs) to the project area and current and expected post -project nearshore drift patterns in the project area. c. Current and expected post -project habitat conditions, including the presence of fish, wildlife and plant species, submerged aquatic vegetation, spawning habitat, and special aquatic sites (e.g., vegetated shallows, riffle and pool complexes, or mudflats) in the project area. d. In rivers and streams, an assessment of the likely impact of the proposed work on upstream, downstream and cross -stream properties (at a minimum the area assessed should extend from the nearest upstream bend to the nearest downstream bend of the watercourse). Discuss the methodology used for determining effects. The Corps reserves the right to request an increase in the reach assessment area to fully address the relevant ecological reach and associated habitat. e. For new bank stabilization activities in rivers and streams, describe the type and length of existing bank stabilization within 300 feet up and downstream of the project area. In tidal areas, describe the type and length of existing bank stabilization within 300 feet along the shoreline on both sides of the project area. f. Demonstrate the proposed project incorporates the least environmentally damaging practicable bank protection methods. These methods include, but are not limited to, the use of bioengineering, biotechnical design, root wads, large woody material, native plantings, and beach nourishment in certain circumstances. If rock must be used due to site erosion conditions, explain how the bank stabilization structure incorporates elements beneficial to fish. If the Corps determines you have not incorporated the least environmentally damaging practicable bank protection methods and/or have not fully compensated for impacts to aquatic resources, you must submit a compensatory mitigation plan to compensate for impacts to aquatic resources. g. A planting plan using native riparian plant species unless the applicant demonstrates a planting plan is not appropriate or not practicable. 5. Crossings of Waters of the United States. Any project including installing, replacing, or modifying crossings of waters of the United States, such as culverts, requires pre -construction notification to the District Engineer in accordance with Nationwide Permit General Condition 31 for Pre -Construction Notification. This requirement does not apply to maintenance work exempt by 33 CFR 323.4 (a)(2). Each notification must also include the following information: a. Need for the crossing. b. Crossing design criteria and design methodology. c. Rationale behind using the specific design method for the crossing. 6. Cultural Resources and Human Burials. Permittees must immediately stop work and notify the District Engineer within 24 hours if, during the course of conducting authorized work, human burials, cultural resources, or historic properties, as identified by the National Historic Preservation Act, are discovered. Failure to stop work in the area of discovery until the Corps can comply with the provisions of 33 CFR 325 Appendix C, the National Historic Preservation Act, and other pertinent laws and regulations could result in a violation of state and federal laws. Violators are subject to civil and criminal penalties. 7. Essential Fish Habitat. An activity which may adversely affect essential fish habitat, as identified under the Magnuson -Stevens Fishery Conservation and Management Act (MSA), may not be authorized by NWP until essential fish habitat requirements have been met by the applicant and the Corps. Non- federal permittees shall notify the District Engineer if essential fish habitat may be affected by, or is in the vicinity of, a proposed activity and shall not begin work until notified by the District Engineer that the requirements of the essential fish habitat provisions of the MSA have been satisfied and the activity is authorized. The notification must identify the type(s) of essential fish habitat (e.g., Pacific salmon, groundfish, and/or coastal -pelagic species) managed by a Fishery Management Plan that may be affected. Information about essential fish habitat is available at www.nwr.noaa.gov/. 8. Vegetation Protection and Restoration. Pennittees must clearly mark all construction area boundaries before beginning work. The removal of native vegetation in riparian areas and wetlands, and the removal of submerged aquatic vegetation in estuarine and tidal areas must be avoided and minimized to the maximum extent practicable. Areas subject to temporary vegetation removal shall be replanted with appropriate native species by the end of the first planting season following the disturbance except as waived by the District Engineer. If an aquaculture area is permitted to impact submerged aquatic vegetation under NWP 48, the aquaculture area does not need to be replanted with submerged aquatic vegetation. 9. Access. You must allow representatives of this office to inspect the authorized activity at any time deemed necessary to ensure the work is being, or has been, accomplished in accordance with the terms and conditions of your permit. 10. Contractor Notification of Permit Requirements. The permittee must provide a copy of the nationwide permit verification letter, conditions, and permit drawings to all contractors involved with the authorized work, prior to the commencement of any work in waters of the U.S. D. CORPS REGIONAL SPECIFIC CONDITIONS FOR THIS NWP 1. Private linear transportation crossings placed in waters of the U.S. with footprints wider than 22 feet or longer than 200 feet are not authorized by this NWP. For the width requirement, "footprint" refers to the footprint of the width of the roadway fill prism. 2. The permittee must submit a pre -construction notification to the District Engineer in accordance with Nationwide Permit General Condition 31 (Pre -Construction Notification) for linear transportation crossing activities in tidal waters. E. STATE 401 CERTIFICATION GENERAL CONDITIONS: 1. For in -water construction activities. Individual 401 review is required for projects or activities authorized under NWPs that will cause, or be likely to cause or contribute to an exceedence of a State water quality standard (WAC 173-201A) or sediment management standard (WAC 173-204). Note: State water quality standards are posted on Ecology's website: http://iririr.ecy.wa.gor/progrcurrshrq/sings/. Click "Surface Water Criteria" for freshwater and marine water standards. Sediment management standards are posted on Ecology's website: http://tin}tit'.ecy.wa.goi/hihlio/wac17320.1.html. Information is also available by contacting Ecology's Federal Permit staff. 1 2. Projects or Activities Discharging to Impaired Waters. Individual 401 review is required for projects or activities authorized under NWPs if the project or activity will occur in a 303(d) listed segment of a waterbody or upstream of a listed segment and may result in further exceedences of the specific listed parameter. Note: To determine if your project or activity is in a 303(d) listed segment of a iaterbody, visit Ecology's Water Quality Assessment webpage for maps and search tools, http://iti mec):wa.go►/prograins/n q/303d/?008.. L formation is also available by contacting Ecology's Federal Permit staff. 3. Notification. For projects or activities that will require Individual 401 review, applicants must provide Ecology with the same documentation provided to the Corps (as described in Corps Nationwide Permit General Condition 31, Pre -Construction Notification), including, when applicable: (a) A description of the project, including site plans, project purpose, direct and indirect adverse environmental effects the project would cause, and any other Department of the Army permits used or intended to be used to authorize any part of the proposed project or any related activity. (b) Delineation of special aquatic sites and other waters of the United States. Wetland delineations must be prepared in accordance with the current method required by the Corps and shall include Ecology's Wetland Rating form. Wetland rating forms are subject to review and verification by Ecology staff. Note: Wetland rating forms are available on Ecology's Wetlands website: latp://ir'tvii.cc1:wa.gov/programs/sea'}retlands/rating>s}stems or by contacting Ecology's Federal Permit staff f (c) A statement describing how the mitigation requirement will be satisfied. A conceptual or detailed mitigation or restoration plan may be submitted. Mitigation plans submitted for Ecology review and approval shall be based on the guidance provided in Wetland Mitigation in Washington State, Parts 1 and 2 (Ecology Publications #06-06- 01 la and 1106-06-011 b). (d) Coastal Zone Management Program "Certification of Consistency" Form if the project is located within a coastal county (Clallam, Grays Harbor, Island, Jefferson, King, Kitsap, Mason, Pacific, Pierce, San Juan, Skagit, Snohomish, Thurston, Wahkiakum, and Whatcom counties). Note: CZM Certification of Consistency forms are available on Ecology's Federal Permit website: http://www.ecy.wa.gorlprograms/seciffecl-pernitt/index.html or by contacting Ecology's Federal Permit staff (e) Other applicable requirements of Corps Nationwide Permit General Condition 31, Corps Regional Conditions, or notification conditions of the applicable NWP. Note: Ecology has 180 days from receipt of applicable documents noted above and a copy of the final authorization letter from the Corps providing coverage for a proposed project or activity under the NWP Program to issue a WQC and CZM consistency determination response. If more than 180 days pass after Ecology's receipt of these documents, your requirement to obtain an individual WQC and CZM consistency determination response becomes waived. 4. Aquatic resources requiring special protection. Certain aquatic resources are unique, difficult -to - replace components of the aquatic environment in Washington State. Activities that would affect these resources must be avoided to the greatest extent possible. Compensating for adverse impacts to high value aquatic resources is typically difficult, prohibitively expensive, and may not be possible in some landscape settings. Individual 401 review is required for activities in or affecting the following aquatic resources (and not prohibited by Regional Condition 1): (a) Wetlands with special characteristics (as defined in the Washington State Wetland Rating Systems for western and eastern Washington, Ecology Publications #04-06-025 and #04-06-015): • Estuarine wetlands • Natural Heritage wetlands • Bogs • Old -growth and mature forested wetlands • Wetlands in coastal lagoons • Interdunal wetlands • Vernal pools • Alkali wetlands (b) Fens, aspen -dominated wetlands, camas prairie wetlands, and marine water with eclgrass (Zostera marina) beds (except for NWP 48). (c) Category 1 wetlands (d) Category II wetlands with a habitat score > 29 points. This State General Condition does not apply to the following Nationwide Permits: NWP 20 — Response Operations for Oil and Hazardous Substances NWP 32 — Completed Enforcement Actions 5. Mitigation. For projects requiring Individual 401 review, adequate compensatory mitigation must be provided for wetland and other water quality -related impacts of projects or activities authorized under the NWP Program. (a) Mitigation plans submitted for Ecology review and approval shall be based on the guidance provided in Wetland Mitigation in Washington State, Parts 1 and 2 (Ecology Publications #06-06- Ol l a and #06-06-01 lb) and shall, at a minimum, include the following: i. A description of the measures taken to avoid and minimize impacts to wetlands and other waters of the U.S. ii. The nature of the proposed impacts (i.e., acreage of wetlands and functions lost or degraded) iii. The rationale for the mitigation site that was selected iv. The goals and objectives of the compensatory mitigation project v. How the mitigation project will be accomplished, including construction sequencing, best management practices to protect water quality, proposed performance standards for measuring success and the proposed buffer widths vi. How it will be maintained and monitored to assess progress towards goals and objectives. Monitoring will generally be required for a minimum of five years. For forested and scrub - shrub wetlands, 10 years of monitoring will oven be necessary. vii. How the compensatory mitigation site will be Iegally protected for the long term. Refer to Wetland Mitigation in Washington State — Part 2: Developing Mitigation Plans (Ecology Publication #06-06-011 b) for guidance on developing mitigation plans. Ecology encourages the use of alternative mitigation approaches, including advance mitigation and other programmatic approaches such as mitigation banks and programmatic mitigation areas at the local level. If you are interested in proposing use of an alternative mitigation approach, consult with the appropriate Ecology regional staff person. (see http://www.ecy.wa.gov/programs/sea/wetlands/contacts.htm) Information on the state wetland mitigation banking program is available on Ecology's website: http://www.ccy. va.gov/programs/sca/wetlands/mitiggation/banking/index.html 6. Temporary Fills. Individual 401 review is required for any project or activity with temporary fill in wetlands or other waters of the State for more than 90 days, unless the applicant has received written approval from Ecology. Note: This State General Condition does not apply to projects or activities authorized under NWP 33, Temporary Construction, Access, and Dewalering 7. Stormwater discharge pollution prevention: All projects that involve land disturbance or impervious surfaces must implement prevention or control measures to avoid discharge of pollutants in stormwater runoff to waters of the state. For land disturbances during construction, the permittee must obtain and implement permits where required and follow Ecology's current stormwater manual. Note: Stormwater permit information is available at Ecology's Water Quality website: http://wnrw.ect,tra.gorlprograms/wq/stormwater/fnde.x.htunl. Ecology's Storntwater Management and Design Manuals are available at: http://u'w s'.ec ira.gol*rograms/wq/stormwatenlnnnunicipal/StrnnrwurMan.html. Information is also available by contacting Ecology's Federal Permit staff S. State Certification for PCNs not receiving 45-day response. In the event the U.S. Army Corps of Engineers does not respond to a complete pre -construction notification within 45 days, the applicant must contact Ecology for Individual 401 review. F. STATE 401 CERTIFICATION SPECIFIC CONDITIONS FOR THIS NWP: Cerl:ified subject to conditions. Permittee must meet State 401 General Conditions. Individual 401 review is required for projects or activities authorized under this NWP if: 1. The entire linear transportation project or activity impacts more than acre of wetlands or more than 1/3 acre of tidal waters. 2. The project includes fill related to a residential and/or commercial development. G. EPA 401 CERTIFICATION GENERAL CONDITIONS: A. Any activities in the following types of wetlands and waters of the United States will need to apply for an individual 401 certification: Mature forested wetlands, bogs, bog -like wetlands, wetlands in dunal systems along the Washington coast, coastal lagoons, vernal pools, aspen -dominated wetlands, alkali wetlands, camas prairie wetlands, estuarine wetlands, including salt marshes, and marine waters with eelgrass or kelp beds. B. A 401 certification determination is based on the project or activity meeting established turbidity levels. The EPA will be using as guidance the state of Washington's water quality standards [WAC 173- 201a] and sediment quality standards [WAC 173-204]. Projects or activities that are expected to exceed these levels or that do exceed these levels will require an individual 40I certification. The water quality standards allow for short-term turbidity exceedances after all necessary Best Management Practices have been implemented (e.g., properly placed and maintained filter fences, hay bales and/or other erosion control devices, adequate detention of runoff to prevent turbid water from flowing off -site, providing a vegetated buffer between the activity and open water, etc.), and only up to the following limits: Wetted Stream Width at Discharge Point Approximate Downstream Point for Determining Compliance Up to 30 feet 50 feet >30 to 100 feet 100 feet >100 feet to 200 feet 200 feet >200 feet 300 feet LAKE, POND, RESERVOIR Lesser of 100 feet or maximum surface dimension C. 401 certification of projects and activities under NWPs will use Washington State Department of Ecology's most recent stormwater manual or an EPA approved equivalent manual as guidance in meeting water quality standards. D. For projects and activities requiring coverage under an NPDES permit, certification is based on compliance with the requirements of that permit. Projects and activities not in compliance with NPDES requirements will require individual 401certification. E. Individual 401certification is required for projects or activities authorized under NWPs if the project will discharge to a waterbody on the list of impaired waterbodies (the 303(d) List) and the discharge may result in further exceedance of a specific parameter the waterbody is listed for. The EPA shall make this determination on a case -by -case basis. For projects or activities that will discharge to a 303(d)-listed waterbody that does not have an approved Total Maximum Daily Load (TMDL) or an approved water quality management plan, the applicant must provide documentation for EPA approval showing that the discharge will not result in further exceedance of the listed contaminant or impairment. For projects or activities that will discharge to a 303(d)-listed waterbody that does not have an approved TMDL, the applicant must provide documentation for EPA approval showing that the discharge is within the limits established in the TMDL. The current list of 303(d)-listed waterbodies in Washington State will be consulted in making this determination and is available on Ecology's web site at: www.ecy.wa.gov/programs/wq/303 d/2012/index.html The EPA may issue 401 certification for projects or activities that would result in further exceedance or impairment if mitigation is provided that would result in a net decrease in listed contaminants or less impairment in the waterbody. This determination would be made during individual 401 certification review. F. For projects requiring individual 401 certification, applicants must provide the EPA with the same documentation provided to the Corps, (as described in Corps' National General Condition 31, Pre - Construction Notification), including, when applicable: (a) A description of the project, including site plans, project purpose, directand indirect adverse environmental effects the project would cause, any other U.S. Department of the Army permits used or intended to use to authorize any part of the proposed project or any related activity. (b) Delineation of special aquatic sites and other waters of the United States. Wetland delineations must be prepared in accordance with the current method required by the Corps. (c) A statement describing how the mitigation requirement will be satisfied. A conceptual or detailed mitigation or restoration plan may be submitted. (d) Other applicable requirements of Corps National General Condition 31, Corps Regional Conditions, or notification conditions of the applicable NWP. A request for individual 401 certification- review is not complete until the EPA receives the applicable documents noted above and the EPA has received a copy of the final authorization letter from the Corps providing coverage for a proposed project or activity under the NWP Program. G. No activity, including structures and work in navigable waters of the United States or discharges of dredged or fill material, may consist of unsuitable material (e.g., trash, debris, car bodies, asphalt, etc.) and material used for construction or discharged must be free from toxic pollutants in toxic amounts (see Section 307 of the Clean Water Act). 1-I. An individual 401 certification is based on adequate compensatory mitigation being provided for aquatic resource and other water quality -related impacts of projects or activities authorized under the NWP Program. A 401 certification is contingent upon written approval from the EPA of the compensatory mitigation plan for projects and activities resulting in any of the following: • impacts to any aquatic resources requiring special protection (as defined in EPA General Condition A or Corps General Regional Condition 1) • any impacts to tidal waters or non -tidal waters adjacent to tidal waters (applies to NWP 14) • Or, any impacts to aquatic resources greater than acre. Compensatory mitigation plans submitted to the EPA shall be based on the Joint Agency guidance provided in Wetland Mitigation in Washington State, Parts 1 and 2 (Ecology Publication #06-06-011a and #06-06-01 l b) and shall, at a minimum, include the following: (1) A description of the measures taken to avoid and minimize impacts to wetlands and other waters of the U.S. (2) The nature of the proposed impacts (i.e., acreage of wetlands and functions Iost or degraded) (3) The rationale for the mitigation site that was selected (4) The goals and objectives of the compensatory mitigation project (5) How the mitigation project will be accomplished, including proposed performance standards for measuring success (including meeting planting success standard of 80 percent survival after five years), evidence for hydrology at the mitigation site, and the proposed buffer widths; (6) How it will be maintained and monitored to assess progress towards goals and objectives. (7) Completion and submittal of an "as -built conditions report" upon completion of grading, planting and hydrology establishment at the mitigation site; (8) Completion and submittal of monitoring reports at years 3 and 5 showing the results of monitoring for hydrology, vegetation types, and aerial cover of vegetation. (9) For forested and scrub -shrub wetlands, 10 years of monitoring will often be necessary. (10) Documentation of legal site protection mechanism (covenant or deed restriction) to show how the compensatory mitigation site will be legally protected for the long-term. 1. An individual 401 certification is required for any activity where temporary fill will remain in wetlands or other waterbodies for more than 90 days. The 90 day period begins when filling activity starts in the wetland or other waterbody. J. An individual 401 is required for any proposed project or activity in waterbodies on the most current list of the following Designated Critical Resource Waters (per Corps General Condition 22). K. An individual 401 certification is required for any proposed project that would increase permanent, above -grade fill within the 100-year floodplain (including the floodway and the flood fringe). [Note: The 100-year floodplain is defined as those areas identified as Zones A, A1-30, AE, AH, AO, A99, V, V1-30, and VE on the most current Federal Emergency Management Agency Flood Rate Insurance Maps, or areas identified as within the 100-year floodplain on applicable local Flood Management Program maps. The 100-year flood is also known as the flood with a 100-year recurrence interval, or as the flood with an exceedance probability of 0.01.] H. EPA 401 CERTIFICATION SPECIFIC CONDITIONS FOR THIS NWP: Denied. Individual 401 certification is required. I. COASTAL ZONE MANAGEMENT CONSISTENCY RESPONSE FOR THIS NWP: Concur, subject to the following condition: When individual 401 review is triggered, a CZM Certificate of Consistency form must be submitted for project located within the 15 coastal counties (See State General 401 Condition 3 (Notification)). PRELIMINARY JURISDICTIONAL DETERMINATION FORM BACKGROUND INFORMATION A. REPORT COMPLETION DATE FOR PRELIMINARY JURISDICTIONAL DETERMINATION (JD): 4 November 2014 B. NAME AND ADDRESS OF PERSON REQUESTING PRELIMINARY JD: Tukwila, City of (Dept of Public Works) C. DISTRICT OFFICE, FILE NAME, AND NUMBER: Seattle District City of Tukwila. NWS 2014 709 D. PROJECT LOCATION(S) AND BACKGROUND INFORMATION: State: WA County: Kiny City: Tukwila Center coordinates of site (tat/long in degree decimal format): Lat. 47.464972°N, Long.-122,2813°W Name of nearest waterbody: Name of any water bodies on the site, In the review area, that have been identified as Section 10 waters: Tidal: None Non -Tidal: None Identify (estimate) amount of waters in the review area (if there are multiple sites, use the table instead): Non -wetland waters (total for site): linear feet 800 and width (ft) or Stream Flow : ma , Flow path: Ditches flow to Gilliam Creek a RPW which flows into Puget Sound Wetlands: None acres (total for iite). Cowardin Class(es): Site number Latitude Longitude Cowardin Class Estimated amount of aquatic resource in review area E. REVIEW PERFORMED FOR SITE EVALUATION (CHECK ALL THAT APPLY): ® Office (Desk) Determination. Date: 4 November 2014 ❑ Field Determination. Date(s): SUPPORTING DATA. Data reviewed for preliminary JD (check all that apply - checked items should be included in case file and, where checked and Hire uested, appropriately reference sources below): Maps, plans, plots or plat submitted by or on behalf of the applicant/consultant: Drawings dated September 2014. ❑ Data sheets prepared/submitted by or on behalf of the applicant/consultant. ❑ Office concurs with data sheets/delineation report. ❑ Office does not concur with data sheets/delineation report. Explain: ❑ Data sheets prepared by the Corps: ❑ Corps navigable waters' study: ❑ U.S. Geological Survey Hydrologic Atlas: ❑ USGS NHD data. ❑ USGS 8 and 12 digit HUC maps, ❑ U.S. Geological Survey map(s). Cite scale & quad name: ❑ USDA Natural Resources Conservation Service Soil Survey. Citation: ❑ National wetlands inventory map(s). Cite name: ❑ State/Local wetland inventory map(s): ❑ FEMA/FIRM maps: ❑ 100-year Floodplain Elevation is: (National Geodetic Vertical Datum of 1929) ❑ Photographs: 0 Aerial (Name & Date): ❑ Photographs: 0 Other (Name & Date): ❑ Previous determination(s). File no., date (and findings) of response letter (determination and coordination): ❑ Other information (please specify): Class of aquatic resource 1. The Corps of Engineers believes that there may be jurisdictional waters of the United States on the subject site, and the permit applicant or other affected party who requested this preliminary JD is hereby advised of his or her option to request and obtain an approved jurisdictional determination (JD) for that site. Nevertheless, the permit applicant or other person who requested this preliminary JD has declined to exercise the option to obtain an approved JD In this instance and at this time. 2. In any circumstance where a permit applicant obtains an individual permit, or a Nationwide General Permit (NWP) or other general permit verification requiring 'pre -construction notification' (PCN), or requests verification for a non -reporting NWP or other general permit, and the permit applicant has not requested an approved JD for the activity, the permit applicant is hereby made aware of the following: (1) the permit applicant has elected to seek a permit authorization based on a preliminary JD, which does not make an official determination of jurisdictional waters; (2) that the applicant has the option to request an approved JD before accepting the terms and conditions of the permit authorization, and that basing a permit authorization on an approved JD could possibly result in less compensatory mitigation being required or different special conditions; (3) that the applicant has the right to request an individual permit rather than accepting the terms and conditions of the NWP or other general permit authorization; (4) that the applicant can accept a permit authorization and thereby agree to comply with all the terms and conditions of that permit, Including whatever mitigation requirements the Corps has determined to be necessary; (5) that undertaking any activity in reliance upon the subject permit authorization without requesting an approved JD constitutes the applicant's acceptance of the use of the preliminary JD, but that either form of JD will be processed as soon as is practicable; (6) accepting a permit authorization (e.g,, signing a proffered individual permit) or undertaking any activity in reliance on any form of Corps permit authorization based on a preliminary JD constitutes agreement that ail wetlands and other water bodies on the site affected in any way by that activity are jurisdictional waters of the United States, and precludes any challenge to such jurisdiction in any administrative or judicial compliance or enforcement action, or in any administrative appeal or in any Federal court; and (7) whether the applicant elects to use either an approved JD or a preliminary JD, that JD will be processed as soon as is practicable. Further, an approved JD, a proffered individual permit (and ail terms and conditions contained therein), or individual permit denial can be administratively appealed pursuant to 33 C.F.R. Part 331, and that in any administrative appeal, jurisdictional issues can be raised (see 33 C.F.R. 331.5(a)(2)), If, during that administrative appeal, it becomes necessary to make an official determination whether CWA jurisdiction exists over a site, or to provide an official delineation of jurisdictional waters on the site, the Corps will provide an approved JD to accomplish that result, as soon as is practicable. This preliminary JD finds that there 'may be' waters of the United States on the subject project site, and identifies all aquatic features on the site that could be affected by the proposed activity, based on the information in this document. IMPORTANT NOTE: The information recorded on this form has not necessarily been verified by the Corns and should not be relied upon for later jurisdictional determinations, Signature; atory Project Manager I I fq 1(4 Date Person1 Requesting Preliminary JD Date 1 Permit applicant, landowner, a lease, easement or option holder, or individual with Identifiable and substantial legal interest in the property; this signature is not required for preliminary JDs associated with anfnnr»mnnt nNinne US Army Corps of Englneers Seattle District CERTIFICATE OF COMPLIANCE WITH DEPARTMENT OF THE ARMY PERMIT Permit Number: NWS-2014-709 Name of Permittee: City of Tukwila (Gilliam Creek culvert) Date of Issuance: JUN 1 5 2015 Upon completion of the activity authorized by this permit, please check the applicable boxes below, date and sign this certification, and return it to the following address: Department of the Army U.S. Army Corps of Engineers Seattle District, Regulatory Branch Post Office Box 3755 Seattle, Washington 98124-3755 Please note that your permitted activity is subject to a compliance inspection by a U.S. Army Corps of Engineers representative. If you fail to comply with the terms and conditions of your authorization, your permit may be subject to suspension, modification, or revocation. ❑ The work authorized by the above -referenced permit has been completed in accordance with the terms and conditions of this permit. Date work complete: ❑ Photographs and as -built drawings of the authorized work (OPTIONAL, unless required as a Special Condition of the permit). ❑ If applicable, the mitigation required (e.g., construction and plantings) in the above -referenced permit has been completed in accordance with the terms and conditions of this permit (not including future monitoring). Date work complete: ❑ Photographs and as -built drawings of the mitigation (OPTIONAL, unless required as a Special Condition of the permit). Printed Name: Signature: Date: r HYDRAULIC PROJECT APPROVAL cry FISH IVTLDLIFE Issued Date: November 10, 2014 Project End Date: November 09, 2019 Washington Department of Fish & Wildlife PO Box 43234 Olympia, WA 98504-3234 (360) 902-2200 Permit Number: 2014-4-350+01 FPA/Public Notice Number: N/A Application ID: 579 PERMITTEE AUTHORIZED AGENT OR CONTRACTOR City of Tukwila Public Works Department CH2MHILL ATTENTION: Cyndy Knighton ATTENTION: Rob Rodland 6300 Southcenter Blvd., Ste 100 1100 112th Ave NE, Suite 500 Tukwila, WA 98188 Bellevue, WA 98004 Project Name: Project Description: City of Tukwila 40th - 42nd Avenue S Phase III and Gilliam Creek Culvert Replacement The project includes the replacement of a non -fish passable, 92-foot long, 3-foot diameter concrete culvert with a 146-foot long, 16-foot wide by 8-foot, 4-inch rise single radius corrugated metal pipe (CMP) fish passable culvert. Construction of the road widening project would occur from Southcenter Boulevard to S. 160th Street. The Gilliam Creek limits are assumed to extend approximately 200 feet upstream and.200 feet downstream of the existing culvert under 42nd Avenue S. The proposed culvert location would be shifted approximately 17 feet south of the existing culvert to minimize impacts to the existing rockery wall on the north side of the existing culvert inlet, and the very large boulders on the north side of the existing culvert outlet. Approximately 25 feet of upstream channel and 50 feet of downstream channel will be reconstructed because of the shifted position of the new culvert. The new culvert would have a slope of 3.8 percent. The multi -plate CMP culvert would be supported by concrete footings that will be 2 feet square and 2 feet deep. The footings were sized to provide adequate support to the Toad from the soil on top of the culvert, and deep enough to protect the footings from being undermined by the stream flow. The existing bankfull width downstream of the culvert was measured at about 11.5 feet. The proposed culvert bed width would be about 16 feet wide under the new culvert. Construction of the road widening project includes asphalt overlay and replacement, curb, gutter, bike lane/sharrow, sidewalks, lighting, storm drainage facilities, and utility relocations as well as the culvert replacement described above. Both northbound and southbound lanes of 42nd Avenue S would have a 14-foot wide shared lane for vehicles and bicycles. Both sides of the roadway would have new curbs and gutters, 4-foot wide amenity zones, and sidewalks with a minimum width of 5 feet. A new storm drain collection, conveyance, treatment and flow control system is proposed. Stormwater treatment consisting of either a pond or vault would be constructed within city owned property. Stormwater pretreatment units are proposed to provide some water quality treatment prior to discharge of stormwater runoff to Gilliam Creek.. The proposed conveyance and detention system include a new outfall to Gilliam Creek. The existing roadside ditches on the southeast and southwest sides of 42nd Avenue S will be filled and the existing stormwater flows will be piped. The existing stormwater flow pattern will not be altered. The road widening project will require the relocation of existing utility lines located within 42nd Avenue S. HYDRAULIC PROJECT APPROVAL FLSH0,3 WILDLIFE Issued Date: November 10, 2014 Project End Date: November 09, 2019 Washington Department of Fish & Wildlife PO Box 43234 Olympia, WA 98504-3234 (360) 902-2200 Permit Number: 2014-4-350+01 FPA/Public Notice Number: N/A Application ID: 579 PROVISIONS 1. The project may begin immediately and shall be completed by November 9, 2019, provided work within the wetted perimeter shall occur only between June 1 and September 30. 2. Work shall be accomplished per plans and specifications approved by the Washington Department of Fish and Wildlife (WDFW) entitled, "REFERENCE: 579", dated July 2014, except as modified by this Hydraulic Project Approval (HPA). A copy of these plans shall be available on site during construction. 3. NOTIFICATION REQUIREMENT: The Area Habitat Biologist and Enforcement Officer shall receive email notificatior (email larry.fisher@wdfw.wa.gov and michael.apple@dfw.wa.gov, respectively) from the person to whom this HPA is issued (permittee) or the agent/contractor no less than three working days prior to start of work, and again within seven days of completion of work to arrange for a compliance inspection. The notification shall include the permittee's name, project location, starting date for work or completion date of work, and the control number for this HPA. 4. POST -CONSTRUCTION NOTIFICATION REQUIREMENT: The permittee, agent or contractor shall contact the Washington Department of Fish and Wildlife by e-mail to HPAapplications@dfw.wa.gov; mail to Post Office Box 43234, Olympia, Washington 98501-1091; or fax to (360) 902-2946 within seven days of completion of the work. The notification shall include the permittee's name, project location, completion date for the work, and the HPA control number. The department may conduct a compliance inspection; however, the department will notify the permittee or agent prior to the inspection. 5. The culvert shall be installed and maintained to ensure unimpeded fish passage. 6. The culvert shall be installed to maintain structural integrity to the 100-year peak flow with consideration of the debris likely to be encountered. 7. Fill associated with the culvert installation shall be protected from erosion to the 100-year peak flow. 8. The culvert shall be installed and maintained to avoid inlet scouring and to prevent erosion of stream banks downstream of the project 9. The culvert facility shall be maintained by the owner(s) per RCW 77.57.030 to ensure continued, unimpeded fish passage. If the structure becomes a hindrance to fish passage, the owner(s) shall be responsible for obtaining an HPA and providing prompt repair. Financial responsibility for maintenance and repairs shall be that of the owner(s). 10. The culvert shall be installed in the dry or in isolation from the stream flow by the installation of a bypass flume or culvert, or by pumping the stream flow around the work area. 11. The culvert shall consist of a single barrel. 12. Disturbance of the streambed and banks shall be limited to that necessary to place the culvert and any required channel modification associated with it. Affected streambed and bank areas outside the culvert and associated fill shall be restored to preproject or improved hiabitat configuration following installation of the culvert. Within one year of project completion, the banks shall be revegetated with native or other approved woody species. Vegetative cuttings shall be planted at a maximum interval of three feet (on center) and maintained as necessary for three years to ensure 80 percent survival. 13. Culvert removal or installation shall be conducted in the dry or in isolation from stream flow by the installation of a bypass to divert the stream flow around the work area, or by pumping the water around the work area. Bypassing the stream flow around the work area is the preferred method. Pumping may be used if bypassing the stream is not a viable option. 14. The temporary bypass to divert flow around the work area shall be in place prior to initiation of other work in the wetted perimeter. 15. A sandbag revetment or similar device shall be installed at the bypass inlet to divert the entire flow through the HYDRAULIC PROJECT APPROVAL �. FLSHand if7LDLKIFE Issued Date: November 10, 2014 Project End Date: November 09, 2019 Washington Department of Fish & Wildlife PO Box 43234 Olympia, WA 98504-3234 (360) 902-2200 Permit Number: 2014-4-350+01 FPA/Public Notice Number: N/A Application ID: 579 16. A sandbag revetment or similar device shall be installed at the down stream end of the bypass to prevent backwater from entering the work area. 17. The bypass shall be of sufficient size to pass all flows and debris for the duration of the project. 18. Prior to releasing the water flow to the project area, all in -water work shall be completed. 19. Upon completion of the project, all material used in the temporary bypass shall be removed from the site and the site returned to preproject or improved conditions. 20. Any device used for diverting water from a fish -bearing stream shall be equipped with a fish guard to prevent passage of fish into the diversion device pursuant to RCW 77.57.010 and 77.57.070. The pump intake shall be screened by one of the following: a. Perforated plate: 0.094 inch (maximum opening diameter). b. Profile bar: 0.069 inch (maximum width opening). c. Woven wire: 0.087 inch (maximum opening in the narrow direction). The minimum open area for all types of fish guards is 27%. The screened intake shall consist of a facility with enough surface area to ensure that the velocity through the screen is Tess than 0.4 feet per second. Screen maintenance shall be adequate to prevent injury or entrapment of juvenile fish and the screen shall remain in place whenever water is withdrawn from the stream through the pump intake. 21. If at any time, as a result of project activities, fish are observed in distress, a fish kill occurs, or water quality problems develop (including equipment leaks or spills), immediate notification shall be made to the Washington Military Department's Emergency Management Division at 1-800-258-5990, and to the Area Habitat Biologist listed below. 22. Erosion control methods shall be used to prevent silt -laden water from entering the stream. These may include, but are not limited to, straw bales, filter fabric, temporary sediment ponds, check dams of pea gravel -filled burlap bags or other material, and/or immediate mulching of exposed areas. 23. Prior to starting work, the selected erosion control measures (Provision 22) shall be installed. Accumulated sediments shall be removed during the project and prior to removing the erosion control measures after completion of work. 24. Wastewater from project activities and water removed from within the work area shall be routed to an area landward of the ordinary high water line to allow removal of fine sediment and other contaminants prior to being discharged to the stream. 25. All waste material such as construction debris, silt, excess dirt or overburden resulting from this project shall be deposited above the limits of flood water in an approved upland disposal site. 26. If high flow conditions that may cause siltation are encountered during this project, work shall stop until the flow subsides. 27. Extreme care shall be taken to ensure that no petroleum products, hydraulic fluid, fresh cement, sediments, sediment -laden water, chemicals, or any other toxic or deleterious materials are allowed to enter or leach into the stream. LOCATION #1: Site Name: 42nd Avenue S/Gilliam Creek „WA WORK START: November 10, 2015 WORK END: November 9, 2019 WRIA Waterbody: Tributary to: 09 - Duwamish - Green Unknown Stream Number Unknown HYDRAULIC PROJECT APPROVAL FISH arl {f7LDLIFF. Issued Date: November 10, 2014 Project End Date: November 09, 2019 Washington Department of Fish & Wildlife PO Box 43234 Olympia, WA 98504-3234 (360) 902-2200 Permit Number: 2014-4-350+01 FPA/Public Notice Number: N/A Application ID: 579 1/4 SEC: Section: {Township: ,Range: (Latitude: Longitude: County: SW 1/4 22 23 N 04 E 47.465783 -122.281172 King Location #1 Driving_ Directions From 1-405, take the Southcenter Blvd exit west to 42nd Avenue S, turn left on 42nd Avenue S and continue about 450 fee south to the project location. From 1-5 south, take Southcenter Blvd exit west toward Burien/SeaTac Airport, follow sign to Southcenter Blvd and Southcenter Mall, turn right onto Southcenter Blvd, continue to 42nd.Avenue S, then turn left and continue south on 42nd Avenue S about 450 feet to project location. APPLY TO ALL HYDRAULIC PROJECT APPROVALS This Hydraulic Project Approval pertains only to those requirements of the Washington State Hydraulic Code, specificall Chapter 77.55 RCW. Additional authorization from other public agencies may be necessary for this project. The persor (s) to whom this Hydraulic Project Approval is issued is responsible for applying for and obtaining any additional authorization from other public agencies (local, state and/or federal) that may be necessary for this project. This Hydraulic Project Approval shall be available on the job site at all times and all its provisions followed by the person (s) to whom this Hydraulic Project Approval is issued and operator(s) performing the work. This Hydraulic Project Approval does not authorize trespass. The person(s) to whom this Hydraulic Project Approval is issued and operator(s) performing the work may be held liable for any loss or damage to fish life or fish habitat that results from failure to comply with the provisions of this Hydraulic Project Approval. Failure to comply with the provisions of this Hydraulic Project Approval could result in a civil penalty of up to one hundred dollars per day and/or a gross misdemeanor charge, possibly punishable by fine and/or imprisonment. All Hydraulic Project Approvals issued under RCW 77.55.021 are subject to additional restrictions, conditions, or revocation if the Department of Fish and Wildlife determines that changed conditions require such action. The person(s) to whom this Hydraulic Project Approval is issued has the right to appeal those decisions. Procedures for filing appeals are listed below. i 1 ..l HYDRAULIC PROJECT APPROVAL r.� FISH Dal g1LLDLIFE Issued Date: November 10, 2014 Project End Date: November 09, 2019 Washington Department of Fish & Wildlife PO Box 43234 Olympia, WA 98504-3234 (360) 902-2200 Permit Number: 2014-4-350+01 FPA/Public Notice Number: N/A Application ID: 579 MINOR MODIFICATIONS TO THIS HPA: You may request approval of minor modifications to the required work timing or to the plans and specifications approved in this HPA. A minor modification to the required work timing means up to a one -week deviation from the timing window in the HPA when there are no spawning or incubating fish present within the vicinity of the project. You may request subsequent minor modifications to the required work timing. A minor modification of the plans and specifications means any changes in the materials, characteristics or construction of your project that does not alter the project's impact to fish life or habitat and does not require a change in the provisions of the HPA to mitigate the impacts of the modification. Minor modifications do not require you to pay additional application fees or be issued a new HPA. If you originally applied for your HPA through the online Aquatic Protection Permitting System (APPS), you may request a minor modification through APPS. A link to APPS is at http://wdfw.wa.gov/licensing/hpa/. If you do not use APPS you must submit a written request that clearly indicates you are seeking a minor modification to an existing HPA. Include the HPA number and a description of the requested change and send by mail to: Washington Department of Fish and Wildlife, PO Box 43234, Olympia, Washington 98504-3234, or by email to HPAapplications@dfw.wa.gov. Do not include payment with your request. You should allow up to 45 days for the department to process your request. MAJOR MODIFICATIONS TO THIS HPA: You may request approval of major modifications to any aspect of your HPA. Any approved change other than a minor modification to your HPA will require issuance of a new HPA. If you paid an application fee for your original HPA you must pay an additional $150 for the major modification. If you did not pay an application fee for the original HPA, no fee is required for a change to it. If you originally applied for your HPA through the online Aquatic Protection Permitting System (APPS), you may request a major modification through APPS. A link to APPS is at http://wdfw.wa.gov/licensing/hpa/. If you do not use APPS you must submit a written request that clearly indicates you are requesting a major modification to an existing HPA. Include the HPA number, check, and a description of the requested change. Send your written request and payment, if applicable, by mail to: Washington Department of Fish and Wildlife, PO Box 43234, Olympia, Washington 98504-3234. You should allow up to45 days for the department to process your request. APPEALS INFORMATION If you wish to appeal the issuance, denial, conditioning, or modification of a Hydraulic Project Approval (HPA), Washington Department of Fish and Wildlife (WDFW) recommends that you first contact the department employee who issued or denied the HPA to discuss your concerns. Such a discussion may resolve your concerns without the need for further appeal action. If you proceed with an appeal, you may request an informal or formal appeal. WDFW encourages you to take advantage of the informal appeal process before initiating a formal appeal. The informal appeal process includes a review by department management of the HPA or denial and often resolves issues faster and with Tess legal complexity than the formal appeal process. If the informal appeal process does not resolve your concerns, you may advance your appeal to the formal process. You may contact the HPA Appeals Coordinator at (360) 902-2534 for more information. A. INFORMAL APPEALS: WAC 220-110-340 is the rule describing how to request an informal appeal of WDFW actions taken under Chapter 77.55 RCW. Please refer to that rule for complete informal appeal procedures. The following information summarizes that rule. HYDRAULIC PROJECT APPROVAL FISH WILDLIFE Issued Date: November 10, 2014 Project End Date: November 09, 2019 Washington Department of Fish & Wildlife PO Box 43234 Olympia, WA 98504-3234 (360) 902-2200 Permit Number: 2014-4-350+01 FPA/Public Notice Number: N/A Application ID: 579 A person who is aggrieved by the issuance, denial, conditioning, or modification of an HPA may request an informal appeal of that action. You must send your request to WDFW by mail to the Washington Department of Fish and Wildlife HPA Appeals Coordinator,600 Capitol Way North, Olympia, Washington 98501-1091; e-mail to HPAapplications@dfw.wa.gov; fax to (360) 902-2946; or hand -delivery to the Natural Resources Building, 1111 Washington St SE, Habitat Program, Fifth floor. WDFW must receive your request within 30 days from the date you receive notice of the decision. If you agree, and you applied for the HPA, resolution of the appeal may be facilitated through an informal conference with the WDFW employee responsible for the decision and a supervisor. If a resolution is not reached through the informal conference, or you are not the person who applied for the HPA, the HPA Appeals Coordinator or designee will conduct an informal hearing and recommend a decision to the Director or designee. If you are not satisfied with the results of the informal appeal, you may file a request for a formal appeal. B. FORMAL APPEALS: WAC 220-110-350 is the rule describing how to request a formal appeal of WDFW actions taker under Chapter 77.55 RCW. Please refer to that rule for complete formal appeal procedures. The following information summarizes that rule. A person who is aggrieved by the issuance, denial, conditioning, or modification of an HPA may request a formal appea of that action. You must send your request for a formal appeal to the clerk of the Pollution Control Hearings Boards and serve a copy on WDFW within 30 days from the date you receive notice of the decision. You may serve WDFW by mail to the Washington Department of Fish and Wildlife HPA Appeals Coordinator,600 Capitol Way North, Olympia, Washington 98501-1091; e-mail to HPAapplications@dfw.wa.gov; fax to (360) 902-2946; or hand -delivery to the Natural Resources Building, 1111Washington St SE, Habitat Program, Fifth floor. The time period for requesting a formal appes is suspended during consideration of a timely informal appeal. If there has been an informal appeal, you may request a formal appeal within 30 days from the date you receive the Director's or designee's written decision in response to the informal appeal. C. FAILURE TO APPEAL WITHIN THE REQUIRED TIME PERIODS: If there is no timely request for an appeal, the WDFW action shall be final and unappealable. Habitat Biologist Larry Fisher Larry.Fisher@dfw.wa.gov 425-313-5683 for Director WDFW L16-00011 SPECIAL PERMISSION - INCOMPLETE APPLICATION RESPONSE TO COMMENTS Attachment B — Landscaping Plans and Gilliam Creek Monitoring Plan • • 00 F PUBLIC WORKS DEPT. -ENGI N EERING-STREETS-WATER-SEWER-PARKS-BUILDING- —x— —x— —x— —x— —x— —x— —x— M KKKKKd LCK CA aboAdd LK seism EMI oatr dabk- LANDSCAPE NOTES O1 ADJUST SHRUBS SO THAT NO SHRUB CENTER IS CLOSER THAN 3' TO SIDEWALK/DRIVEWAY RETURN, TYP. 0 TOPSOIL AND MULCH ONLY LEGEND SEED/SOD MIX B & TOPSOIL O SHRUB & BARK MULCH O TREE & BARK MULCH - HVF — TREE PROTECTION FENCING (HVF) ® ROCKERY WALL NUMBER OF PLANTS 32 BT '"+' \ PLANT SPECIES (SEE SHEET LA-6) M w C NOTES: 1. SEE DEMOLITION AND EROSION CONTROL SHEETS FOR TREE REMOVALS. W Z ▪ 2. FOR TREE PROTECTION DETAIL SEE SHEET LA-7 x v 12 BT 11 RR 9 RI 9 PO 3. ALTERNATE SHRUBS IN GROUPS OF THREE IN SEQUENCE LISTED CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III LANDSCAPE PLAN O 20 40 SCALE IN FEET d. revisions ro; c•; 81 89 neno LA-1 sate 1"20' a,. 9nnrxi1, z x u 3 54+00 55+00 42ND AVE S. 56+00 111.1411/ 57+00 x•x•X 4.) 12 BT 9 RR 9 RI 9 PO 3 BT 3 RR 3 RI 1 PO ...II 6 BT 6 RR 6 RI 3 PO MATCH LINE LANDSCAPE NOTES 0 ADJUST SHRUBS SO THAT NO SHRUB CENTER IS CLOSER THAN 3' TO SIDEWALK/DRIVEWAY RETURN, TYP. LEGEND SEED/SOD MIX B & TOPSOIL 0 SHRUB & BARK MULCH - HVF — TREE PROTECTION FENCING (HVF) ® ROCKERY WALL NUMBER OF PLANTS 32 BT PLANT SPECIES (SEE SHEET LA-6) NOTES: 1. SEE DEMOLITION AND EROSION CONTROL SHEETS FOR TREE REMOVALS. 2. FOR TREE PROTECTION DETAIL SEE SHEET LA-7 3. ALTERNATE SHRUBS IN GROUPS OF THREE IN SEQUENCE LISTED 0 20 40 SCALE IN FEET PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- by die LCK CA LCK nn CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III LANDSCAPE PLAN eaviAnne 82 z x v o :F 46. PUBLIC WORKS DEPT. -ENGINEERING-STREETS—WATER-SEWER-PARKS-BUILDING- BOULDER WALL • • 71+00 !!!!!!!!!!!!!!!!t�������� • .5►.�.�.�.�.�.�.�.�4 STREAM BED ♦������. GRAVEL • BUFFER LIMIT • • PROVIDE ��� ' �•:ti ••1 1 WALL AT TREEBOULDER 1X �� •``' �' DRIPLINE IF . NEEDED •.♦.-f fF dab designed LCK down tliM•7 LCK mien Ebb o�tr faldbk- • • • • s X BOULDER WALL (TYP) • • • • LANDSCAPE NOTES 0 ADJUST SHRUBS SO THAT NO SHRUB CENTER IS CLOSER THAN 3' TO SIDEWALK/DRIVEWAY RETURN, TYP. LEGEND SEED/SOD MIX B & TOPSOIL O SHRUB & BARK MULCH O TREE & BARK MULCH ORRAWmi REVEGETATION BUFFER AREA, TREES AND SHRUBS REVEGETATION BUFFER AREA, SHRUBS ONLY 2" DEPTH CRUSHED SURFACING TOP COURSE - HVF — TREE PROTECTION FENCING (HVF) ////////// RETAINING WALL NUMBER OF PLANTS 32 BT PLANT SPECIES (SEE SHEET LA-6) NOTES: 1. SEE DEMOLITION AND EROSION CONTROL SHEETS FOR TREE REMOVALS. 2. FOR TREE PROTECTION DETAIL SEE SHEET LA-7 3. ALTERNATE SHRUBS IN GROUPS OF THREE IN SEQUENCE LISTED 4. SEE LA-6 FOR REVEGETATION PLANTING NOTES ZONE QTY OF TREES QTY OF SHRUBS QTY OF SEED MIX A ZONE A 10 21 2,661 SF ZONE B / 15 420 SF ZONE C 6 12 708 SF ZONE D 13 49 3,053 SF ZONE E / 11 514 SF ZONE F 15 29 2,083 SF CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III LANDSCAPE PLAN =MI Vow- 0 20 40 SCALE IN FEET ro revisions 85 89 tie no LA-5 scale 1'20' L c.; ebb 2bb17 • i I' • PLANT SCHEDULE - GILLIAM CREEK REVEGETATION BUFFER AREA SYMBOL AREA QUANTITY BOTANICAL NAME COMMON NAME SIZE NOTES TREES 0.17ACRE 5 ' SALIX LASIANDRA PACIFIC WILLOW * #3 PLANT 12' O.C. TRIANGULAR SPACE 5 SALIX SCOULERIANA SCOULER WILLOW* #3 PLANT 12' O.C. TRIANGULAR SPACE 5 BETULA PAPYRIFERA PAPER BIRCH* #3 PLANT 12' O.C. TRIANGULAR SPACE 5 FRAXINUS LATIFOLIA OREGON ASH* #3 PLANT 12' O.C. TRIANGULAR SPACE 5 THUMA PLICATA WESTERN RED CEDAR ** #3 PLANT 12' O.C. TRIANGULAR SPACE 5 TSUGA HETEROPHYLLA WESTERN HEMLOCK** #3 PLANT12' O.C. TRIANGULAR SPACE ire iiii•4 '�"' S • ALNUS RUBRA RED ALDER*** #3 PLANT 12' O.C. TRIANGULAR SPACE 5 40 ACER CIRCINATUM VINE MAPLE** #3 PLANT 12 O.C. TRIANGULAR SPACE 4 ACER MACROPHYLLUM BIG -LEAF MAPLE** #3 PLANT 12' O.C. TRIANGULAR SPACE 4 I - PSEUDOTSUGA MENZIESII DOUGLAS FIR*** #3 PLANT 12' O.C. TRIANGULAR SPACE 4 PIN US CONTORTA SHORE PINE*** #3 PLANT12' O.C. TRIANGULAR SPACE SHRUBS 0.22ACRE 24 CORNUS SERICEA REDOSI ER DOGWOOD* #3 PLANT GROUPS OF3AT3'O.C.TRIANGULAR SPACE 24 SAMBUCUS RACEMOSA RED ELDERBERRY* #3 PLANT GROUPS OF 3 AT 3' O.C. TRIANGULAR SPACE 24 MYRICA CALIFORNICA PACIFIC WAX MYRTLE** #3 PLANT GROUPS OF3AT3'O.C.TRIANGULAR SPACE i•DOiiii ••.*:-��4 23 RIBES SANGUINEUM RED FLOWERING CURRENT*** #3 PLANTGROUPS OF 3 AT3" O.C. TRIANGULAR SPACE 27 HOLODISCUS DISCOLOR OCEANSPRAY*** #3 PKANTGROUPS OF 3 AT 3' O.C. TRIANGULAR SPACE 24 SYMPHORICARPOS ALBUS SNOWBERRY*** #3 PLANT GROUPS OF 3 AT 3' O.C. TRIANGULAR SPACE SEEDING 0.22 ACRE NATIVE GRASS MIX A SEE SPECIFICATION •••••, %lb A. All 0.22ACRE TOPSOILA 4" DEPTH 0.22ACRE FINE COMPOST 3" DEPTH NOTES: *TOLERATES WET TO SATURATED SOILS ** RECOMMEND MODERATELY WET TO DRY SOILS *** RECOMMEND DRY SOILS 1. THE ACTUAL PLACEMENT OF REVEGETATION TREES AND SHRUBS WILL BE AT THE DIRECTION OF THE ENGINEER AND IN CONSULTATION WITH THE CITY'S HABITAT MANAGER AND/OR URBAN ENVIRONMENTALIST. PLANT SCHEDULE - 42ND AVE S. PLANTING AND SEED/SOD AREAS SYMBOL AREA QUANTITY BOTANICAL NAME COMMON NAME SIZE NOTES SEEDING 0.55 ACRE SEED /SOD MIX B SEE SPECIFICATIONS 0.55ACRE TOPSOILA 4" DEPTH IN SEED/SOD AREA SHRUBS BT 0000 102 BERBERUS THUNBERGII 'CRIMSON PYGMY' CRIMSON PYGMY DWARF BARBERRY #3 PLANT 3'O.C. RR 0000 90 ROSA RUGOSA'SHOWY PAVEMENT' SHOWY PAVEMENT ROSE #3 PLANT 3' O.C. RI 0000 73 RHAPHIOLEPIS X DELACOURII 'GEORGIA PETITE' GEORGIA PETITE INDIAN HAWTHORN #3 PLANT 3' O.C. PO 0000 60 PHYSOCARPUS OPULIFODUS 'PODARAS3' LEMONCANDYNINEBARK #3 PLANT 3'O.C. ACER 0 0 2 ACER CIRCINATUM VINE MAPLE 1.5" CALIPER PLANT WHERE SHOWN 292 SY AMENDED TOPSOIL 12" DEPTH - CONTINUOUS TRENCH IN ROADWAY SHRUB PLANTING DETAIL 292 SY MULCH 3" DEPTH - CONTINUOUS IN BED IN ROADWAY SHRUB PLANTING DETAIL LANDSCAPE AND REVEGETATION NOTES: 1. SEE DEMOLITION AND EROSION CONTROL SHEETS FOR TREES TO REMAIN. 2. GRADING SHALL BE ACCEPTED PRIOR TO PLANT INSTALLATION. 3. COORDINATE ACCESS AND CONSTRUCTION STAGING WITH ENGINEER. 4. DISCREPANCIES BETWEEN PLANS AND SITE CONDITIONS SHALL BE BROUGHT TO THE ATTENTION OF THE ENGINEER PRIOR TO PROCEEDING WITH LANDSCAPE WORK. 5. PLANTING IN WATER SATURATED SOILS ON AREAS WITH STANDING WATER WILL NOT BE ALLOWED. 6. ALL LANDSCAPE AND PLANT MATERIALS SHALL BE IN ACCORDANCE WITH THE AMERICAN STANDARDS FOR NURSERY STOCK, ANSI Z60.1 LATEST EDITION. 7. SUBMIT TO ENGINEER THREE MONTHS PRIOR TO LANDSCAPE AND REVEGETATION WORK, CONFIRMED PROCUREMENT ORDERS FOR ALL PLANT MATERIAL PROVIDE THE QUANTITY, LOCATION PHONE NUMBER AND ADDRESS OF THE GROWERS. 8. ALL NURSERIES UNDER CONTRACT TO PROVIDE PLANT MATERIAL FOR THE PROJECT MUST HOLD P. RAMORUM CERTIFICATION IN ORDER TO GUARANTEE AGAINST RAMORUM BLIGHT AND DIEBACK. 9. PRIOR TO COMMENCEMENT OF LANDSCAPE AND REVEGETATION WORK, CONTRACTOR SHALL SUBMIT AND GAIN APPROVAL FOR A WATERING PROGRAM TO PROVIDE COMPLETE UNIFORM COVERAGE TO ALL NEW PLANTINGS. 10. CONTRACT ENGINEER IN WRITING 3 WEEKS IN ADVANCE OF PLANT MATERIAL DELIVERY TO ESTABLISH ON -SITE INSPECTION. PLANT MATERIAL SHALL NOT BE INSTALLED UNTIL IT HAS BEEN APPROVED BY THE ENGINEER. ALL PLANT MATERIAL SHALL BE PLACED IN ONE ROADWAY AND ONE REVEGETATION LOCATION ON THE PROJECT SITE AND CONTRACTOR TO PROVIDE ENGINEER UNRESTRICTED ACCESS FOR VISUAL INSPECTION OF INDIVIDUAL PLANTS. PLANTS SHALL BE ORGANIZED IN BLOCKS BY SPECIES AND SUFFICIENTLY SPACED TO OBSERVE OVERALL GROWTH HABIT. TREES SHALL BE UNTIED AND BRANCHES SEPARATED. UNACCEPTABLE PLANT LMATERIAL SALL BE REOVED FROM THE JOB SITE. 11. ALL AREAS DISTURBED BY THE CONSTRACTOR OUTSIDE THE AREAS SHOWN ON THE LANDSCAPE PLANS SHALL RECEIVE SEED/SOD APPROVED BY THE ENGINEER. GILLIAM CREEK REVEGETATION AREA 1. THE ACTUAL PLACEMENT OF REVEGETATION TREES AND SHRUBS WILL BE AT THE DIRECTION OF THE CITY OF TUKWILA URBAN ENVIRONMENTAL SPECIALIST OR THEIR DESIGNEE. 2. TREES SHALL BE SPACED 16 FOOT ON CENTER IN AREAS SHOWN. 3. SHRUBS SHALL BE SPACED 4 TO 6 FOOT ON CENTER IN CLUSTERS OF 2-3 OF THE SAME SPECIES INTERSPERSED BETWEEN THE TREES. 4. TOPSOIL AND COMPOST SHALL BE BLENDED WITH EXISTING SOIL IN ALL AREAS OUTSIDE THE TREE AND SHRUB MULCH RINGS AND SEEDED WITH SEED MIX A. 5. CONTRACTOR MAY HYDROSEED OR HAND SEED, NO OVERSEEDING OF PLANT RINGS WILL BE PERMITTED. 6. CONTRACTOR RESPONSIBLE FOR PROVIDING ADEQUATE WATER FOR REVEGETATION AREA. DEAD OR DYING REVEGETATION PLANTS TO BE REPLACED AT A 2 TO 1 RATIO. 42ND AVENUE ROADWAY PLANTING 1. PLANT SHRUBS IN LINEAR GROUPS OF 3 OF THE SAME SPECIES BEGINNING FROM EVERY DRIVEWAY -END. THE REPEATING SEQUENCE IS: 3 BT, 3 RR, 3 RI, 3 PO AND THE SEQUENCE IS SOUTH TO NORTH. THE SEQUENCE STARTS OVER AT EVERY NEW DRIVEWAY -END. 2. ROADWAY PLANTING OF SHRUBS SHALL BE IN A CONTINUOUS AMENDED TOPSOIL TRENCH. 3. MULCH SHALL BE CONTINUOUS THROUGHOUT THE PLANT BED. REVEGETATION MAINTENANCE 1. PERFORM MAINTENANCE OPERATIONS DURING MAINTENANCE PERIOD, (SEE SPECIFICATIONS) TO INCLUDE: - WATERING: KEEP SURFACE MOIST. - WASHOUTS: REPAIR BY FILLING WITH TOPSOIL, FERTILIZING, SEEDING, AND COMPOST MULCHING. - MULCH: REPLACE WHEREVER AND WHENEVER WASHED OUT OR BLOWN AWAY. - WEEDING: MONITOR AND CONTROL NOXIOUS WEEDS AND INVASIVE SPECIES. - RESEED: UNSATISFACTORY AREAS OR PORTIONS THEREOF IMMEDIATELY IF A SATISFACTORY STAND HAS NOT BEEN PRODUCED. - RESEED/REPLANT: DURING NEXT PLANTING SEASON IF SCHEDULED END OF MAINTENANCE PERIOD FALLS AFTER SEPTEMBER 15TH. - RESEED/REPLANT ENTIRE AREA IF SATISFACTORY STAND HEALTHY AND VIABLE PLANTS DO NOT DEVELOP BY END OF CONTRACT. PUBLIC WORKS DEPT. -ENGINEERING-STREETSWATER-SEWER-PARKS-BUILDING- h eW LCK drm thscbd iCK wore ENTI retr Sold cNz4#1t CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III LANDSCAPE NOTES AND PLANT SCHEDULE 86 89 Nero LA-6 scale 1'420' DRAFT TECHNICAL MEMORANDUM CH2MHILL 42nd Avenue South Project, City of Tukwila Gilliam Creek Culvert Replacement Basis of Design PREPARED FOR: COPY TO: PREPARED BY: DATE: PROJECT NUMBER: Cyndy Knighton, City of Tukwila Larson, Ryan, City of Tukwila Roger Mason, P.E., CH2M HILL Amy Carlson, PE., CH2M HILL Raymond Chung, P.E., CH2M HILL March 5, 2013 434540 Project Overview The 40th to 42nd Avenue South Phase III Project (Project) includes roadway widening, asphalt overlay and replacement, curb, gutter, bike lane/sharrow, sidewalks, lighting, storm drainage facilities, utility relocations, and analysis of a fish passable culvert crossing for Gilliam Creek. This project provides improvements along 42nd Avenue South from South 154th Street to South 160th Street. The northbound lane of 42nd Avenue South will have a 14-foot wide shared lane for vehicles and bicycles, and the southbound lane will have a 12-foot wide traffic lane and a 4-foot wide bicycle lane. Both sides of the road will have new curb and gutter, 4-foot planter strip, and a minimum 5-foot wide sidewalk. The side streets will be improved to provide a transition into 42nd Avenue South. The Project also includes the analysis of a fish passable culvert crossing for Gilliam Creek whose limits are assumed to extend approximately 200 feet upstream and downstream of the existing culvert. Existing Site Conditions Gilliam Creek is located within the Green River drainage basin (Water Resource Inventory Area [WRIA] #09), and its confluence with the Green River occurs at river mile 12.7. The Project is located at the south fork of the Upper Gilliam Creek. This reach collects runoff from highly developed urban land use including residential neighborhoods and commercial and industrial development between the Pacific Highway and Port of Seattle. In addition, runoff from nearby major roadways such as State Routes (SR) 518 and 99 flows into Gilliam Creek. This reach of stream channel is along the north side of SR 518 flowing eastward direction. The existing channel bank width is approximately 11 feet wide with steep stream banks on both sides. An old crumbled concrete dam is located 70 feet upstream of the 42nd Avenue South crossing. This dam is approximately 5 feet tall and stream sediment is filled behind the dam. The existing 42nd Avenue South crossing concrete culvert is 36 inches in diameter at approximately 5 percent slope. This culvert is currently not a fish passage culvert and is undersized. Water is backed up at the inlet side even during small storm events. The inlet of the culvert is protected by a rockery. An existing rock wall is at the north side of the culvert inlet, and a multi -family residential is at the top of this wall. The outlet of the culvert WBG022513024141SEA / TUKWILA42ND_CULVERTTM_20130304 1 COPYRIGHT 2013 BY CH2M HILL, INC. • COMPANY CONFIDENTIAL pipe is partially submerged and protected by large borders. No site of erosion was observed immediately upstream or downstream of the culvert. Soil The existing culvert is founded on very dense glacial till with firm sandy silt fill overlaying the native glacial till. The roadway fill embankment near the culvert is composed of large riprap/boulders with silt and sand infill. Utilities Many existing underground utilities are along the 42nd Avenue South corridor, including a 24-inch sanitary sewer at the center of the road, two (4- and 12-inch) Puget Sound Energy gas lines, a 12-inch water line, telecommunications conduits, and a Seattle City Light duct bank. Overhead utilities are primarily located in the south side of the SR 518, including power and telecommunications. Permit Requirements The Project involves instream work and a new stormwater outfall that requires a Hydraulic Permit Approval (HAP) from the Washington State Department of Fish and Wildlife (WDFW). The instream work may affect an existing wetland, which will require a Section 404 permit from the U.S. Army Corps of Engineers (USACE). In addition, the impacts to potential jurisdictional ditches along the roadside will need to be reviewed by the USACE. A Joint Aquatic Permit Application (JAPRA) will be submitted. This project needs to apply for the City of Tukwila's grading permit and a National Pollutant Discharge Elimination System (NPDES) general permit. The City of Tukwila will apply for a Notice of Intent (NO1) prior to the start of the construction. Design Criteria The design of culvert is intend to be fish passable. The culvert width is designed to meet WDFW requirements for a stream simulation design. The design of the required crossing width is based on a field measurement of the bankfull width (BFW) of the creek. W = 1.2 * BFW + 2 The culvert will pass the 100-year design peak flow rate with a maximum headwater of 1.25 H/W ratio. The streambed cobbles sizing follows the unit bed discharge method (WDFW, 2003). This method determines the size of the D84 size rock. Then D100, D50, and D16 size streambed cobbles were determined according to the natural sediment distributions in this guideline. Hydrology and Peak Flow Rate The tributary area to the 42nd Avenue culvert is approximately 635 acres, with 500 acres from the City of SeaTac and the remaining from the City of Tukwila. The basin boundary was determined by reviewing available basin plans, reports, and GIS maps (contours and storm drain systems) from the Cities of Tukwila and SeaTac. The area is part of the Riverton Heights Subbasin (Herra, 2000). The boundary extends north to South 146th Street, west to 26th Avenue South, and south to South 168th Street. This south fork of upper Gilliam Creek has two major tributaries: the southwest tributary and the northwest tributary. Figure 1 in Attachment A shows the basin tributary. The land cover of the tributary was determined using aerial maps from the Cities of Tukwila and SeaTac. The tributary area to the north and south of the Project site is primarily residential areas with single- family houses. Stormwater runoff conveyed by roadway side ditches and storm drains. The tributary west of the Project site primarily consists of the Port of Seattle and SR 518 interchange. Stormwater runoffs are generally conveyed by enclosed storm drains. There is no stream gauge in Gilliam Creek and no flow data is available. The stormwater runoff peak flow rates are calculated using a single storm event model, Santa Barbara Unit Hydrograph (SBUH) methodology. The peak flows for the 2- to the 100-year periods are listed in Table 1. The annual low flow rate, as listed in Table 1, is based on a water quality report (Herra, 2001). These peak flow rates were estimated based on the land cover, hydrological soil Group C, and time of concentration. A hydraulic model was performed with the existing culvert. It is estimated the roadway will be overtopped from the creek at approximately 300 cubic feet per second (cfs). Because there is no record of overtopping from floodwater, a boundary condition for the upper limit of the peak flow rate was provided. Local attenuation, flow restriction, areas with more permeable soil that expected, or local flow control systems were not included. Therefore, these peak flow rates could be on the higher side of the estimate and should be conservative values for sizing the streambed gravels. The boundary and estimated land cover of tributary area and the hydrological model output using StormShed3G are included in Attachment B. TABLE 1 Gilliam Creek Flow Rates at 42nd Avenue South Flow statistic Discharge (cfs) Average summer low flow' Average annual flow' 2-year recurrence peak flow2 10-year recurrence peak flow2 25-year recurrence peak flow2 100-year recurrence peak flow2 0.5 21 98 187 235 283 Notes: 1. Source: Herra, 2000 2. Calculated using SBUH methodology (Attachment A). Proposed Culvert The existing BFW of the creek downstream of the culvert was measured approximately 11.5 feet downstream of the existing culvert. The proposed culvert bed width would be 16 feet wide, according to the streambed criteria listed previously. Several culvert types and shapes were considered, including the following: • 16-foot wide rectangular concrete box culvert • 16-foot, 3-inch span by 11-foot rise corrugated metal pipe (CMP) pipe arch culvert • 16-foot span by 8-foot, 4-inch rise single -radius CMP multiple -plate pipe arch bottomless culvert After an initial order of magnitude cost estimate, the 16-foot span by 8-foot, 4-inch rise single radius CMP multi -plate pipe arch bottomless culvert is the least costly option. The design will continue with this option. The proposed culvert location is shifted approximately 17 feet south to minimize the impact to the existing rockery wall on the north side of the existing culvert inlet, and the very large boulders on the north side of the existing culvert outlet. The streambed channel upstream and downstream of the culvert needs to be reconstructed because of the widening of the streambed and shifting location. Approximately 25 feet of the upstream channel and 50 feet of the downstream channel will be reconstructed. The new culvert has a slope of 3.8 percent. The multi -plate culvert is supported by a concrete footing. This concrete footing will be approximate 2 feet wide and 2 feet deep. The size of footing was sized to provide adequate support to the load from the soil on top of the culvert and deep enough to be protected from being undermined by the stream flow. Hydraulic The USACE Hydrologic Engineering Center River Analysis System (HEC-RAS) software was used to create a hydraulic model characterizing existing peak flow attenuation provided by the 42nd Avenue South culvert barrel based on available information. The HEC-RAS model was run assuming steady state inflow conditions (i.e., a single flow value as opposed to a continuous hydrograph) with peak flow rate listed in Table 1. Using the HEC-RAS to model the existing conditions, the water will overtop the existing roadway with the existing 36-inch diameter concrete culvert at surveyed inverts elevation. Because there was no record of the road being overtopped by the steam, the creek should not have more than 300 cfs of peak flow rate. The peak flow velocity at the outlet of the culvert ranges from 8 to 10 feet per second. In the proposed conditions with the 16 feet wide span culvert, the modeled flow velocity of the stream remains high because of the steepness of the culvert and the high peak flow rate. The water peak flow velocity at the outlet of the culvert ranges from 7 to 9 feet per second during the 2- to 100-year storm events, which is reduced from the existing conditions. The water depth is less than 2 feet inside the culvert during large storm event. The proposed HEC-RAS model output is included in Attachment B. Streambed Gravel The streambed gravel is sized using the 50- to 100-year storm event peak flow rates and the proposed culvert width and slope. Then the sizes of the gravel are increased by 15 percent as a safety factor to reduce the streambed movement. The sizes of the gravel are listed in Table 2. Large streambed boulders will be installed in the channel to provide additional stability of the streambed gravel, and to provide shelter for migrating fish from the high flow velocity. A 1-foot deep low flow channel is included to allow typically annual low flow to pass through. This low TABLE 2 Streambed Gravel Sizes flow channel has a size slope of 5H:1V and slightly meandering within the culvert with the position of streambed Gravel (Percent Fine) Cobble Size (inches) the large boulders. The streambed gravel will be D100 26" 3 feet thick. D84 10" Channel bed grade control structures are proposed to help maintain a channel gradient that allows sediment transport comparable to existing D16 1.5" conditions. Two new grade control structures are proposed at the following locations: • Upstream culvert entrance to maintain gradient and sufficient water depth in low flow conditions to provide upstream fish passage • Downstream end of the new culvert to maintain bed gradient through the culvert, which will help to minimize bed scour that could otherwise threaten the structural integrity of the culvert side wall foundations D50 4" Other Design Issues Other than the hydrological and hydraulic design and fish pass ability of the culvert, there are several other design considerations and issues during construction. • The proposed bottom of the streambed gravel is approximately 16 feet from the existing roadway surface. The existing roadway width is approximately 40 feet. The deep excavation needed to install the proposed culvert requires a very wide excavation limit that it is impractical to maintain with even one lane of traffic for both traffic directions during construction. It is recommended the 42nd Avenue South be closed during culvert installation. • There are many existing utilities underneath 42nd Avenue South. During culvert installation, a wide hole will be excavated to reach the bottom of the culvert. All of the existing underground utilities will be exposed. The top width of the excavation at the existing top of roadway could be 60 feet or wider. Existing utilities will need to be temporarily supported, temporary bypassed, relocated, and reinstalled when the road is restored. Following are the major existing utilities: o Puget Sound Energy gas line 12" and 4". o Seattle City Light joint power and telecommunication ductbank. o Water line 12". o Valley View Sewer District sanitary line 24". • An existing concrete dam structure is approximately 40 feet upstream of the proposed culvert inlet. This concrete dam structure is approximately 5 feet tall and is in failing conditions. The concrete is cracked with leaking water and blocks of concrete are falling apart. Sediment is filled behind the dam. This dam structure is outside the Project area; however, if this structure fails, sediment will rush down to the new culvert, potentially clog the inlet of the culvert, create flooding upstream of the culvert, and damage the roadway and adjacent properties. • The current 36-inch concrete culvert is undersized and could create water backup at the upstream end of the culvert. It provides some attenuation to the stream flow. With the proposed larger culvert, water will pass through this new culvert as the stream peak flow rate reaches the culvert and the attenuation effect is diminished. The Gilliam Creek downstream of the culvert may see more frequent larger peak flow rates. The City of Tukwila should monitor the stream for any new developments in stream erosion. References Herra 2000, Gilliam Creek Basin - Description of Existing Conditions and Alternatives for Improvement, Herrera Environmental Consultants, Inc, February 2000. WDFW 2003, Design of Road Culverts for Fish Passage, Washington Department of Fish and Wildlife. Attachment A Hydrology r City of Tukwila 42nd Ave S Culvert Replacement Total Tributary to Gilliam Creek at 42nd Ave S. Total Tributary Area (acres) 635.09 City of Tukwila Boundary Impervious (acres) 34.17 Pervious (acres) 105.84 Subtotal (acres) 140.00 City of SeaTac Boundary Impervious Pervious Subtotal (acres) (acres) (acres) 143.26 351.82 495.08 Total Impervious (acres) 177.43 Total Grass (acres) 388.87 Total Pasture (acres) 34.54 Total Forrest (acres) 34.25 2/27/2013 42nri Area Summary 2(111n297_xlcy 1 Tukwila 42nd Ave Culvert Replacement Gilliam Creek Peak Flow Rate Appended on: Thursday, July 26, 2012 3:38:28 PM Event Precip (in) 2 yr 24 hr 2.00 15 year 2.50 110 year 3.00 25 year 3.50 100 year 4.00 Existing Event Summary Event Peak Q (cfs) Peak T (hrs) 2 yr 24 hr 98.122 8.1667 141.2668 8.1667 187.0573 - 8.1667 234.6459 8.1667 283.4779 i - 8.1667 5 year 10 year 25 year 100 year Hyd Vol (acft) Area (ac) Method 56.0098 635.09 SBUH 635.09 SBUH 635.09 SBUH 635.09 SBUH 635.09 I SBUH 77.8502 100.736 124.3475 148.4837 All results based on storm duration of 24.0 hours. This is ok if all precipitations are appropriate for the storm duration. If some design event precipitations are for different duration storms, those results are incorrect Record Id: Existing 'Design Method Hyd Intv Storm Duration Pervious Area 'Pervious CN !Pervious TC SBUH 10.00 min 24.00 hrs 457.66 ac 84.72 42.2924 min Rainfall type Peaking Factor Abstraction Coeff DCIA DC CN DC TC Pervious CN Calc Description Wood/forest land (Undisturbed/2nd growth) Pasture or range (fair) Open spaces, lawns,parks (>75% grass) 34.25 ac 34.54 ac 388.87 ac TYPE1A.RAC 484.00 0.20 177.43 ac 98.00 25.7611 min SubArea Sub cn 76.00 79.00 86.00 Type 'Sheet Shallow Int Channel Cont Channel Shallow Type Int Channel ;Int Channel Cont Channel Pervious Composited CN (AMC 2) Pervious TC Calc Description Short prairie grass and lawns. Short grass, pasture and lawns (n=0.030) Concrete pipe (n=0.012) Meandering stream w/ some pools (n=0.040) ;Short grass, pasture and lawns (n=0.030) Pervious TC Length ;Slope ,Coeff , Misc F TT 100.00 ft j 2 0% 10.15 0:00 in r1000.6 2.9% 0.03 ft I 3300.00 r ( ft 11.5% 0.012 1500.00 ft ,3.0% 0.04 520.00 ft DCI - CN Calc Description Impervious surfaces (pavements, roofs, etc) DC Composited CN (AMC 2) Description Concrete pipe (n=0.012) Concrete pipe (n=0.012) DCI - TC Calc 7.1% ' 0.03 SubArea 177.43 ac 12.3935 min 9.1464 mini 10.5753 min 7.1375 mini 3.0397 min 42.2924 min Sub cn 98.00 98.00 Length !Slope 1Coeff ;Misc TT 2900.00 2 0% 10.012 ft 3300.00 ' ft 1.5% 0.012 Meandering stream w/ some pools 1500.00 (n=0.040) ft Pervious TC Licensed to: CH2M HILL 3.0% 0.04 f 8.0483 min 10.5753 min 7.1375 min 25.7611 min S 150th St Feet 0 245 490 980 1,470 1,960 Southcenter Blyci 41- City of TUkfFa S16L . City of Seajac 42nd Ave S Subbasin City Boundary Attachment B Proposed HEC-RAS Model Output M M r OD cr N (n r U) N r M O t[) 0) r O) 00 0 r M 0) r .- CO r ▪ (C) O O r c{ N 0 N. O ▪ (D O N( M N h M (0 0 M 0) M M N. N U r r .- ' O O r r O U r r r 66 O .- O 0.- r.- N O O r N N -0 "0 -0 7 7 7 2 2 2 Li_ Li. Li_ 0) 0) 0) 1= .7 (0 r M N V 01 (0 (J) L Cr (O N. CD N (f) N. (O (D L CJ 0 r 00 Cr Tt 00 N. Trt O)6(D CD CO(Dr Q hto00 O0ch 00r(DO) u)())O)O(O 0Mcr([) 70 N r 0 V N 46r D) '.0 N M ui (D N. (D Ti O 0) CV V I. 00 0 00 N. N N Mr N N r N N N M r N N r r M N M r N M r r M to a_ a a_ 0 I- I- I� (O Tr O) (0 Tr r- 0) .7 .7 r (d N 00 N 01ch 00 (O N (d u) CO N 0) co (() 0) 0) U) ^ O co 7 OD 00 (n N 0) V r 01(D h O) N N Cn 0) co Tr N CO r O <r N h r W CO Ti W (fj O N N O) M r r (D I� N dD C11 (D (O CU M M N Q r M V r r Q N N N r (O N. N r M Q CJ M M r (0 O M N cr .• r- 3 w o v o v o Q N O) (D CA O) r O) co h r co co 00 Cn M V O) CO r OD CO r N 0) (D CO O (n r hN NMTt(A 0(l7 OMO Cn NOh O�MhN co Or6 lE L N Cn 6(C) N (O O) TiL 6 6 CO 0) N N r Cn L C) O) (0 (0 M N. N Ur U r r 0_ - r r d1 - - >? >? >� o " h N M h N 0) (n OD 0.- Tr (n Cn M N CO (ID 0.... V 01 01CO 0C- (D C)) O M O) O) N M N a V O 0) O .7.7CD O D- CO CD 01 Tr opU) N 00 (0 O O 0 N h CO CO as O CDO 0 7 (n N CO CD CO 0... N- 2.' C) Sr 00 O) N r OD 00 '- CO O CA r M N O (0 O h (1) O h N (J) (O (n T (/) O CO N. CO (() N CO l0 r N r CD CD r 0 r In r CD OD 0 O r 0 0 up N O CD CD r 0 r ° 000vo 0000 � oo0cyo 0000 0 000r0 0000 LL? 0 0 0 0 0 0 0 0 0 w? 0 0 0 0 0 0 j? C) o 0 0 0 0 0 0 0 D) N co C) CO r- N 0, 0)cr 1.17 0) cr (D CO N 01CJ O) up .1-r....0 (J) O) N N Cb TT (D co co CD N. W o O M • N. (n h Tr(O cm(n co r. Tr N 6OD co �_ N W M M 0) N N- (J) a)4 Ti N O 0) ® (() _M O (C) (n CDO W r 0 O O O m W r N 0 O CD CD O W O O N O d ^N N N N N N N N r • N N N N N N N•^CJ N N N N N N N W W W (n co O) (n Tr up 00 CO M (D (0 (D (C) O) h co 0 O) r- O h U) 0D cr •CD N 0".00 h (D M 0 h M O C)1 OD (D Ti O 00 01O) N N N N N CD N N N N N N 0 0 0 m U-s Ui- Q1 CO h 111 (D j C) h Ti O 00 > ;,-1 N N N N U Ul Ti CA N N N N > V C) (0 Cn CD (J) N (1) > (n Cb CD (D O) V (O CO > O1 O) N. (C) co co N 0) N co co tb Tr N. O CO (n 0) CO CO r r (C) 0 h 00 0) 0 O (7 co V (J) ui 4 N N LLI h (O r) CO CO M (0 O O) Ca h (O Ti O) O) Ti v) O O) Ca 0) N Ti 0) O O O CD 05 0 0 CD CD CD CO CV CD CD CD 0) O N N O O N N N N N N N Cl r 06 N N N N4 N N N N r Pl N N N N N N (n 0 (D N TY (n 0) ([) (D Tr Tr up CO (f) 10 (O N cr cr (A CDW r m O h h r O h (n W (n O) O hN h r O - (n W r- C1 CD 0, 0, r m N,0 L O Ti N h O O O co 0) L CO Ti N_ CD CD N. CD CD 00 M L 6 Ti N h CD CD O Ch CO W co U N N N N N N N cn U N N N N N N N r r U CV N N N 0 N 0 C_ ........ C_ 00000 0000 00000 00000 0000 D) O O O O (0 r r r r r= r r r r (0 r r r r O Q) > O f/1 I— y (1 0 0 0 a) L U Q 0 m a 1i aaaaa aaaa 0 .. - (0 (M0 (00 l!) CO (ND N CND 0 7 7 a (0 (n .7CO M N Nrr E a O N N N N N N N N N N N amj d) O v E o 7 o OD w (C U O x CV •2 cD ' r r r r r r r r r r 3 o 7 (0 0) 0) 0) 0) 0) 0) 0) 0 0) 0) C co > > > > > > > > > > 7 0) Q -p II Rivei River Sta Profile N N 0 0 0 N N N N W LLLLLLLL LL.LLLLLL CL CL OL CL CL aaaa (OD (MD v- OD (ND ch N (NO 0 (O (f) cr V CO CO N N N N N N 0 N N N N N r r r r r t t t t t > > > > > > > > > > 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 C C) O O O O O O O O CO ODOOO ODOOCO (Sl N N N N N N N N N O > 1- N 0 U River Sta Profile M M M M M M M M C) LL. LL LL LL LL LLLLLLLL a.aLLaa aaaa 0) O) O (n N O CO N V co (O 7 r OD (D cr N CO O CO (0 V V M M N N ('.1 N N N N N N N N N z:rrrrrrrrr 01 0) CU CO CO 0) 0) 0) 0) C) > > > > > > > > > > > �UUUUUUUUUUUI UUUUUUUUUI L 0• 1 UI UI UI UI UI UI UI UI (..)1 .0I"a Q oL • I _Di I oI 0I o-pi -Di �I L .0i0 o ro activvv-o1110�avU • NNNN NN NNN • \Oo0) N N N N N N 0 N N N N N 0 NNNNNNNNN UN 2 LL L L CC 4 4 V v v Tr C v V Tr ct cr Tr Tr Tr Tr Tr Tr Tr Tr Tr cr Tr Tr Tr a v v v v v Tr 0 crs w 220-( 215- 210- 205- 200- 195 GilliamCreek 42ndNew Plan: Plan 09 2/27/2013 2100 GilliamCreek 42nd_Culvert Legend EG PF3 Crit PF 3 WS P F 3 Ground Right Levee 111,1 ,III 2200 2300 2400 2500 2600 2700 2800 Main Channel Distance (ft) 210- c 0 c� w 205- 2100 GilliamCreek 42ndNew Plan: Plan 09 2/27/2013 GilliamCreek 42nd_Culvert 2300 2400 2500 2600 Main Channel Distance (ft) Legend EG PF2 WS PF2 Crit PF 2 Ground Right Levee 220- 215- 210- c 0 c w 205- 200- 195 2100 GilliamCreek_42ndNew Plan: Plan 09 2/27/2013 Gi Ili amCre ek 42nd_Culvert 2300 2400 2500 2600 Main Channel Distance (ft) Legend EG PF 1 WS PF1 +-- Crit PF 1 Ground Right Levee Attachment C Proposed Stream Bed Gravel Sizing i N. nt motion of D84 occurs. Unit Discharge Bed Method O 8 co co cm cr) = I- co N 0 N N ()) c r N N ✓ • a co O CD 0 - N L O r (C) O 0 CD U) U) L O (O 0 • N M N V O L O r N • 0 r 3- .- er ❑ a0 0 13 sr O coN ❑ m .to a) N_ N O y 0 a)❑ (a 7 G (0 U ❑ L NI' CO OO Cr? U 3-0) r C r r N co N () V O .0 et 0) co C - N cri • N L • M co (/) N (0 0) 0 L (f) O) • O 0 W 0) a) CO CO O O) N CO CD w) N N co N N co N N co (D r- r) O O 0 O 0 CO CO O 0 a) N U N N CO O n a d co O O 0 U 0 O 0 N 0 co N CD >. N (C (f) N (d m O O i ❑ ❑ ❑ U m O a a V 7 .N Z000 co streamrock_20130227.xlsx Attachment D Culvert Plan and Profile and Details r' PSCV-0O1 <7<54O.ngn s. 220 210 200 190 n o + U 0 GC 21+97.37 BEGIN NEW CHANNEL CONSTRUCTION • p /• co O / rt ' U - C7 PROPOSED-163(8'-4 ALUMINIZED STEEL 'CULVERT GC 23+22.11= 42ND 69+60.76. GC -LINE , T S ST 7S7. A CL 42ND 4" G _ I j 3 12" G j $24" SS 12"' W r TOP OF I L_! CULVERT j SCL DB 000 0°0000c) (94 o �0 ° 0 00 00 / / / / 7 / / / N 0 0 N 0 0U z 0 J F w Z� U UOz 0 Z W z 11J< GEC 24+05.00 END. NEW, CHANNEL CONSTRUCTION,' EXISTING FALLEN LOG EXISTING CONCRETE DAM (BROKEN) • EXISTING CONCRETE CHUTE (BROKEN) ''� 0 10 20 SCALE IN FEET STREAM BED GRAVEL (36" THICK) 0 0 10 HORIZONTAL 5 VERTICAL 20 10 22+00 PUBLIC WORKS DEPT. -ENGI NEERING-STREETS-WATER-SEWER-PARKS-BUILDING- 23+00 date tram KRW RIM role, field bk no CH2M H ILL® 24+00 CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III CULVERT PLAN AND PROFILE 220 210 200 190 date revisions 23 i# Se. CV-1 scale 1"=10' date 3/4/2013 CL 42ND AVE S. PROPOSED GRADE I I I I I I I I EX 12" G EX 4" G K 16'-0" 24" SS R=96' CULVERT SECTION i3 cv--v zz-JOINT ELECTRICAL/ COMM. DUCTBANK 16' DIA CMP (10 GAUGE) MULTI -PLATE ARCHES CULVERT BOULDER, TYP STREAMBED GRAVEL (36" THICK) CONCRETE FOOTING GRAVEL BASE EXISTING 36" CONC CULVERT EXISTING GROUND 3 F. I rn 3 F f/) ST EX 12" W �.., 1 PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- by aa. deOred dta.e clucked nad bk CH2MHILL® CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III CULVERT DETAILS dace revisions fde n scale 24 o CVD-1 date 3/4/2013 , N. DRAFT TECHNICAL MEMORANDUM PFCFlVB' JUL 07 201k (;1 1 1 DbVLLOP MLNT CH2MHILL 42nd Avenue South Project, City of Tukwila Stormwater Design Criteria and Stormwater Management Concept PREPARED FOR: Cyndy Knighton, City of Tukwila Ryan Larson, P.E. City of Tukwila COPY TO: Roger Mason, P.E., CH2M HILL PREPARED BY: Raymond Chung, P.E., CH2M HILL Vincent Autier, P.E., CH2M HILL DATE: March 5, 2013 PROJECT NUMBER: 434540 Introduction This technical memorandum presents the stormwater design criteria and stormwater management concepts. The stormwater design criteria section documents the drainage design and erosion/sediment control criteria. The stormwater management concept presents three stormwater management options. Each option was evaluated by assessing maximum footprints, constructability, feasibility, and effectiveness. In addition, opportunities for flow control and treatment of stormwater from existing roadway surfaces were examined. The recommended stormwater management concept, for which a conceptual drainage plan was prepared, is presented in this technical memorandum. This project provides improvements along 42nd Avenue South from South Center Boulevard to South 160th Street. This road section is about 2,300 feet. The side streets will be improved to provide a transition into 42nd Avenue South. Improvements include roadway widening, asphalt overlay and replacement, curb, gutter, bike Zane/sharrow, sidewalks, lighting, utility relocations, and a fish passable culvert replacement for Gilliam Creek. The roadway grade south of the SR518 overpass is very steep the a slope up to 14 percent. A sag is located near the Gilliam Creek crossing. These improvements will require drainage facilities, including new storm drains, flow control, and water quality treatment facility. Existing Conditions The Project is located within the Gilliam Creek Basin, part of the Green River Basin. The Project setting is a highly urbanized location consists of single, multi -family residential developments. Stormwater runoff from the roadway drains to the roadway ditches and storm drains. The south end of the Project at South 160th Street is the highest elevation for the Project. The main conveyance system is located on the west side of the road with storm drains and paved ditches. The storm drain is 18-inch diameter corrugated metal pipes. It conveys the water down to the sag of the road, where Gilliam Creek crosses the 42nd Avenue South, and discharges into the creek through an open rocked channel. The runoff from the east side of the Project drains to storm drains or grass ditches in the east side and crossing to the west side in several locations. Stormwater runoff from up -gradient of the Project drains toward the Project site on both sides of the street, and then combines to the west side paved ditch. The total tributary area for the roadway storm drain south of the Gilliam Creek WBG022513024141SEA / TUKWILA STORMWATER DESIGN MEMORANDUM_20130304 1 COPYRIGHT 2013 BY CH2M HILL, INC. • COMPANY CONFIDENTIAL 42ND AVENUE SOUTH PROJECT, CITY OF TUKWILA STORMWATER DESIGN CRITERIA AND STORMWATER MANAGEMENT CONCEPT crossing, including areas adjacent to the proposed roadway and up -gradient of the Project site, is approximately 38 acres. Approximately 90 percent of the tributary areas are within the City of Tukwila, with the remaining from the City of SeaTac. The north end of the Project starts from South Center Boulevard (approximately 250 feet from Gilliam Creek). Stormwater runoff drains to catch basins and storm drain on the west side and discharges into Gilliam Creek. Stormwater runoff from the east side of the road drains to an existing curb then into a rock -lined channel into Gilliam Creek. There is no existing flow control facility, and no formal water quality treatment best management practices (BMPs) in the project corridor, except the existing grassy ditches on the east side of the road. The Project site soil is generally roadway fill overlaying compacted glacial till. Existing Utilities The 42nd Avenue corridor is congested with existing underground and overhead utilities. In general, underground utilities include sanitary sewer (8- to 24-inches), water line (8- and 12-inch), gas line (4- and 12-inch), and power and telecommunication duct bank. The sanitary sewer is generally located at the centerline of the road. The pipe size varies from 8-inch at the south end of the Project to 24-inches at the roadway sag. The 12-inch gas line is generally located at the proposed east curb line to a few feet behind the proposed curb. The 4-inch gas line starts in the west side of the road and shifts to the east side (parallel to the 12-inch gas line) near the east curb. The 12-inch water line starts in the west side next to the 4-inch gas line then shifts further west to near the proposed west curb. The 8-inch water line starts at the east side of the road then turn east at South 158th Street. The concrete -encased Seattle City Light duct bank (10 conduits) is generally located on the west side of the road. The duct bank is approximately 18 inches wide by 30 inches high. Stormwater Design Criteria Federal Federal stormwater regulations are contained in the Clean Water Act and typically are promulgated through local stormwater requirements. State Since the Project's area of disturbance will exceed 1 acre, the City of Tukwila is required to file a Notice of Intent with the Washington State Department of Ecology (Ecology) for coverage under the National Pollutant Discharge Elimination System (NPDES) program's General Permit for Stormwater Discharges Associated with Construction Activities. These filings would likely require the Project to provide erosion control measures consistent with Ecology's Stormwater Management Manual for Western Washington (2005). The City will be the applicant for all Project permits and CH2M HILL will provide the necessary support documentation. With the new culvert and new storm drain systems, new outfalls will be installed for the new storm drain systems discharging water to the creek. An Hydraulic Permit Approval (HPA) will be required from the Washington Department of Fish and Wildlife (WDFW). In addition, the in -stream work for the culvert replacement will also require the HPA and other approval from the permit agencies. A Joint Aquatic Resource Permit Application (JAPRA) will be prepared and submitted for all water related approval. City Technical requirements for the design of surface water facilities are contained in Chapter 5 of the City of Tukwila's Infrastructure Design and Construction Standards (2010). In addition, surface water WBG022513024141SEA / TUKWILA STORMWATER DESIGN REPORT_20130225 2 COPYRIGHT 2013 BY CH2M HILL. INC. • COMPANY CONFIDENTIAL 42ND AVENUE SOUTH PROJECT, CITY OF TUKWILA STORMWATER DESIGN CRITERIA AND STORMWATER MANAGEMENT CONCEPT management requirements for the design of stormwater facilities are contained in King County's Surface Water Design Manual2009 (KCSWDM) and the City of Tukwila's addendum. The KCSWDM contains eight core requirements and five special requirements that apply to stormwater design. The following lists each requirement and a discussion of how it will be addressed for this Project. Core Requirement 1: Discharge at Natural Locations The runoff from the Project drains to Gilliam Creek, which is part of the Lower Green River Basin. The Project's stormwater will be discharged near the existing discharge locations described under Core Requirement 4. Core Requirement 2: Offsite Analysis An offsite analysis that assess the potential offsite drainage and water quality impacts associated with the Project and proposes mitigation of those impacts will be performed. The assessment will include a Level 1 (qualitative) downstream analysis, as described in Section 1.2.2.1 of the KCSWDM. Information from others for previous projects in the vicinity will be used, if available and appropriate. Core Requirement 3: Flow Control The Project is categorized as transportation redevelopment project. The proposed improvement will add more than 2,000 square feet of new and replaced impervious surface; therefore, the Project exceeds the basic exemption to the KCSWDM Core Requirement 3. A flow control facility is proposed to meet this core requirement. The KCSWDM (Section 1.2.3) requires flow control for stormwater runoff from the new impervious surfaces and new pervious surfaces that is not fully dispersed. The Project does not add 50 percent or more to the existing impervious surface within the Project limit; therefore, flow control facilities are required to mitigate the impacts of stormwater runoff generated by new impervious surface only. According to the Flow Control Applications Map from the KCSWDM, the Project is within the incorporated area of the City of Tukwila. According to the City of Tukwila construction standards, the Project is located within a "conservation flow control area," which requires the Project to meet the Level 2 flow control standards. The Project's stormwater discharge will match the developed discharge durations to pre -developed durations for the range of pre -developed discharges rates from 50 percent of the 2-year peak flow up to the full 50-year peak flow. In addition, the Project will match developed peak discharge rates to pre -developed peak discharge rates for the 2- and 10-year return periods. The historic site conditions are assumed to be the pre -developed conditions. Ecology has proposed that the existing land cover can be used in basins that have had at least 40 percent total impervious surface area for the 20 years preceding Ecology's adoption of the 2005 Stormwater Management Manual for Western Washington (called the 40/20 criterion). The City of Tukwila conducted GI5 analysis to confirm impervious percentages in 1985. The Project is not in a 40/20 criterion area; therefore, the pre - developed conditions for this basin area will be forested conditions. Till soils dominate the Project site. Unless specific geotechnical data indicates otherwise, no infiltration will be assumed in the flow control facilities. Core Requirement 4: Conveyance System The proposed roadway improvement includes concrete curbs and gutters. Stormwater conveyance facilities on the Project will consist primarily of catch basins and storm drains. New and existing storm drains will be analyzed using uniform flow method according to methods in KCSWDM Section 4.2.1.2. Existing Storm Drains WBG022513024141SEA / TUKWILA STORMWATER DESIGN REPORT_20130225 3 42ND AVENUE SOUTH PROJECT, CITY OF TUKWILA STORMWATER DESIGN CRITERIA AND STORMWATER MANAGEMENT CONCEPT As described in KCSWDM Section 1.2.4.2, remaining storm drains will be analyzed for the 10-year peak design flow and the 1.00-year peak design flow (to demonstrate it will not create or aggravate a "severe flooding problem" or "severe erosion problem"). In addition, existing storm drains will be replaced if pipe cover or other known physical conditions are deficient. System -wide pipe inspections will not be conducted. Proposed Storm Drains All new conveyance systems will be designed for a 25-year storm event. Uniform flow will be used to initially size pipes for capacity. Final pipe sizes will be determined from simple backwater analysis, with the following assumptions: • Pipe material: Smooth wall pipe (concrete, corrugated polyethylene pipe [CPEP], or ductile iron pipe) with manning's n = 0.014 (uniform) and 0.012 (backwater) • Minimum pipe diiameter: 12 inches • Minimum cover: 2 feet (from top of pavement to top of pipe); if less cover is needed, use ductile iron pipe class 50 • Minimum velocity: 3 feet per second (fps) • Match crowns at junctions with changes in pipe diameter where possible Typical inlet spacing will be 300 feet for road grade steeper than 3 percent, 200 feet for road grade between 1 and 3 percent, and 150 feet for road grade less than 1-percent. The inlet capacity may be analyzed using the HEC 22 by the Federal Highway Administration (FHWA) or the Hydraulic Manual by the Washington State Department of Transportation (WSDOT). Spill Control KCSWDM Section 1.2.4.3 requires spill control facilities at the downstream end of each conveyance system that carries stormwater runoff from pollution generating surfaces, such as roads. This is to provide temporary containment of oil and floatables. The spill control option to be used will be a tee section in one of the lowest catch basins or manholes in the system (including the stormwater quality treatment/flow control facility). The location of the spill control device(s) will be determined during final design. Core Requirement 5: Erosion and Sediment Control Appropriate erosion and sediment control (ESC) measures will be incorporated into the Project contract plans (KCSWDM Section 1.2.5 and Appendix D). Primary sediment control measures are expected to be temporary ground covers, catch basin filters, silt fence, rock weirs, and sediment traps at the proposed stormwater facilities. Due to limited right-of-way, flexible compliance in meeting the intent of ESC requirements is allowed for road projects. The Project will follow the requirements as listed in the NPDES General Construction Permit. A stormwater pollution prevention plan (SWPPP) will be prepared by the Contractor following the 12 elements as listed in the KCSWDM, and the SWPPP will be updated as site conditions changes. Core Requirement 6: Maintenance and Operations Since the Project improves a public road, the City of Tukwila will continue maintenance and operational responsibility for the drainage facilities. An operations and maintenance (O&M) manual will not be developed. However, the O&M requirements for the stormwater quality treatment, flow control facilities, and spill control facilities will be from the City of Tukwila. WBG022513024141SEA / TUKWILA STORMWATER DESIGN REPORT_20130225 4 I IIPVRI i-1T 2f111 RV CHn.1 NII I INr o rf-IRAPAMV !`h�.IFIf1FNTIAI 42ND AVENUE SOUTH PROJECT, CITY OF TUKWILA STORMWATER DESIGN CRITERIA AND STORMWATER MANAGEMENT CONCEPT Core Requirement 7: Financial Guarantees and Liabilities Since the Project is a City public works project, this core requirement does not apply. Core Requirement 8: Water Quality Per the KCSWDM, projects adding more than 5,000 square feet of new pollution -generating impervious surfaces (PGIS) will provide water quality treatment. For a roadway project with expected 2,000 or more vehicles of annual daily traffic, enhanced basic treatment is required for the new PGIS and new pollution -generating pervious surfaces (PGPS) that are not fully dispersed. In addition, since the Project's new impervious surface is Tess than 50 percent of the existing impervious, treatment of replaced PGIS is not required. Proposed Developments The proposed roadway improvements includes vehicular and bicycle usage lanes, planter strip, and sidewalk. The existing ditches are generally located underneath the proposed sidewalk. A new stormwater conveyance system is proposed to convey the stormwater runoff. Approximately 520 feet of grassy ditches will be removed. The storm drain main trunk line is proposed at the west curbside, with laterals crossing the road from the east. The stormwater runoff from each end of the Project will be collected by catch basins and be conveyed near the roadway sag and discharge to the Gilliam Creek. The Project will include a flow control facility and a water quality facility. Stormwater Management Concepts Flow Control The project existing and proposed impervious surface area were calculated and tabulated in Table 1. The Project improvement adds 11,128 square feet of new impervious surface area. A flow control facility is proposed to mitigate the increases of peak flow rates from the new impervious surfaces. An existing regional online detention pond is located downstream from the Project site. However, the facility is at capacity and to minimize the in -stream impacts, an onsite detention facility is proposed. There is very limited right-of-way outside the roadway footprint, thus the detention facility will be located within the roadway footprint. TABLE 1 Existing and Proposed Site Conditions Site Conditions Impervious (sf) Pervious (sf) PGIS (sf) Total (sf) Existing Proposed 86,689 19,506 82,077 106,195 97,817 8,378 74,503 106,195 Changes +11,128 -11,128 -7,574 0 sf = square feet A hydrological model was performed using King County's model King County Runoff Time Series (KCRTS) version 6, to calculate peak flows (Table 2) and to size a detention facility. Two types of detention facilities were evaluated, a precast concrete detention vault, and a corrugated metal pipe (CMP). The total new impervious areas for the Project were calculated to be 0.25 acre. A 10 percent contingency factor was added, thus the input area is 0.28 acre. The contingency factor will be reduced as the Project W8G022513024141SEA / TUKWILA STORMWATER DESIGN REPORT_20130225 5 i 42ND AVENUE SOUTH PROJECT, CITY OF TUKWILA STORMWATER DESIGN CRITERIA AND STORMWATER MANAGEMENT CONCEPT is further developed. The breakdown of the pre -developed and the developed areas, and the land use conditions are provided as follows: • Pre -developed condition — Till forest: 0.28 acre • Developed condition — Impervious: 0.28 acre The minimum required orifice size of 0.5 inch could not be achieved with 0.28 acre for either detention facility because of the small allowable discharge rate from the pre -developed conditions. An additional area of 0.12 acres of impervious area was routed through the facility to achieve minimally required orifice size. The breakdown of pre -developed and developed areas and the land use for the new runs are as follows: • Pre -developed condition — Till forest: 0.28 acre — Impervious: 0.12 acre • Developed condition — Impervious: 0.40 acre The results of the KCRTS run for the flow control facility are presented in Appendix A. The summary of the results are presented in Table 2. TABLE 2 Stormwater Runoff Peak Flow Rates for Pre -developed and Developed Conditions Recurrence Pre -developed Peak Flows (cfs) Developed Peak Flows (cfs) 2-year 0.036 0.100 5-year 0.044 0.118 10-year 0.044 0.118 25-year 0.046 0.145 50-year 0.067 0.175 100-year 0.077 0.189 Note: The peak flow rates were calculated using KCRTS, with 1-hour time steps. cfs = cubic feet per second Three options were evaluated using either one of the two facilities sized using KCRTS: • Option 1: Install a detention tank as a 6-foot diameter, 135-foot long, CMP pipe ending at station 69+00. The tank is proposed to be installed at the middle of northbound lane (east side of 42nd Avenue South). It will be installed between the existing sewer and 12-inch gas line. The 4-inch gas line will be relocated. To minimize the trench width, controlled density fill (CDF) will be used to backfill around the tank. The cover at the lower end of the tank starts at 3 feet and the cover at the upper end is approximately 8 feet. This option was not selected due to the amount of the excavation required to install the detention vault. The estimated construction cost is $153,000. WBG022513024141SEA / TUKWILA STORMWATER DESIGN REPORT_20130225 6 CflPVPif:HT 7f111 RV CHJM HII I INf` • rr1MPANV rorrninpwriAI 42ND AVENUE SOUTH PROJECT, CITY OF TUKWILA STORMWATER DESIGN CRITERIA AND STORMWATER MANAGEMENT CONCEPT • Option 2: A detention vault will be installed ending at station 69+00 (i.e. near the roadway sag where the road grade is mildly sloped and close to the culvert crossing). The detention vault will be 60 feet long, 10 feet wide, and 7 feet tall (interior) with a live storage of 6 feet. It will be installed on the west side of the road, partially underneath the sidewalk. This option is recommended, because it will require the least excavation. The existing 4- and 12-inch gas lines will have to be relocated. However, the installation of the new culvert requires temporary disconnection or relocation of the utilities. The detention vault may be installed while the utility services are disrupted during the installation of the culvert. The Drainage and Utilities Plan in Appendix C presents this option. The detention vault will be sized to prevent from potential floatation due to the potential high groundwater level. The detention vault design will follow KCSWDM Section 5.3.3.1. The estimated construction cost is $121,000. • Option 3: A detention tank (CMP) will be installed ending at station 69+00, the same ending station of the detention vault. The detention tank will be 135 feet long, 6 feet diameter and with 5.5 feet of live storage. However, since the length of the CMP tank is relatively long, it would be recommended to install two sections of about 68 feet long, each in parallel to minimize the length of the footprint. To minimize the trench width, CDF will be used to backfill around the tank. This option will also require the relocation of the 4- and 12-inch gas lines. This is expected to be the least expensive option and is recommended for this project. The estimated construction cost is $107,000. Proposed Water Quality Treatment Facility The Project improvement reduces the PGIS area by 7,574 square feet and new PGPS are fully dispersed. Therefore, this project can be exempt from Core Requirement 8; no water quality treatment facility is required. However, 0.44 acre of roadway pavement drains to the grassy ditches on the east side of the road alignment, which currently provides some level of treatment, will be removed. Two options were considered to replace this water quality treatment: • Option A: Two water quality treatment facilities are proposed to replace the function of the grassy ditches. Two Ecology -approved emergent technology BMPs are proposed to provide pre-treatment for the roadway runoff. The BMP will be a flow -through water quality device designed to remove coarse sediment, debris, and free-floating oil. The following are examples of the Ecology -approved devices: — CDS from Contech - Stormceptorfrom Imbrium Systems Inc. - Aqua -swirl from AquaShield Two pre-treatment units are proposed, one on the north side of the roadway sag and another on the south side of the roadway sag. The unit on the south side of the culvert replacement will be located just upstream of the detention facility. This unit will capture 0.28 acre of PGIS. The proposed pre-treatment unit will be a 4-foot diameter CDS model number 2015-4. The second unit will be on the north side of the culvert replacement. This unit will capture 0.24 acre of PGIS. The proposed pre- treatment unit will be another 4-foot diameter CDS model number 2015-4. The total PGIS area captured for pretreatment is 0.52 acre, which exceeds the existing tributary area to the grassy ditches. In conjunction with the reduction of PGIS for approximately 7,574 square feet, the water quality at the storm drain outfall should improve from the current conditions. This option is recommended because it fulfills the treatment needs and costs less than Option B. The estimated cost is $20,000. WBG022513024141SEA / TUKWILA STORMWATER DESIGN REPORT_20130225 7 COPYRIGHT 2013 BY CH2M HILL, INC. • COMPANY CONFIDENTIAL 42ND AVENUE SOUTH PROJECT, CITY OF TUKWILA STORMWATER DESIGN CRITERIA AND STORMWATER MANAGEMENT CONCEPT • Option B: A single large pre-treatment unit can be installed at the storm drain main trunk line near station 65+40, immediately up -gradient of SR 518 Bridge. Since the main trunk line conveys the Project roadway runoff as well offsite runoff, it is estimated the stormwater runoff from more than 30 acres will be treated by this unit. An 8-foot diameter would be needed to provide adequate capacity of pre-treatment. The overall cost is higher than Option A. However, it treats a much larger area with a more efficient cost per acre of PGIS than Option A. The estimated cost is $45,000. Proposed Conveyance System The conveyance systems proposed are primarily catch basins and storm drains. The south side system starts at South 160th Street. Two existing storm drains enters the Project site at South 160th Street, an 18-inch CMP in the west side and an 18-inch CMP in the east side. New storm drains connect to these two existing system and combine them into a main trunk line on the west. An existing 12-inch water line is located near the new west curb line north of South 158th Street. In order to avoid the utility conflicts and relocation of the entire 12-inch water line on the west side, the catch basins are proposed to be installed setback 2 feet from the typical curb line. The curb line at the catch basins will be flared out with a transverse slope of 6 percent, and a slight depression of the catch basin frame and grate. These approaches provide some separation between the storm drain structures and the existing water line. When using larger catch basins such as catch basin type 2, the belly of the structure will be erratic toward the sidewalk. The catch basins on the east side may be concrete inlet and be installed over the existing gas line, or the 4-inch gas line may be relocated at the structures. The proposed storm drain trunk line starts at an 18-inch diameter and is likely to be 30 inches near the roadway sag. As discussed previously, the main trunk line will be on the west side of the road. A smaller separate storm drain is proposed at the east side of the road to capture enough area to the detention facility. This new storm drain will be installed along the east curb, which will conflicts with the existing 4-inch gas line. It is expected the 4-inch gas line will be relocated. Other Design Considerations Groundwater Based on the geotechnical exploration data provided by the City of Tukwila, it is likely the dense till soil will create a perched layer of groundwater. The CMP tank or concrete vault design needs to consider the potential of the tank floatation because of potential buoyancy from groundwater. Utilities Conflicts and Relocation The 4" gas line will be relocated for 730 LF along the east side of the road, and 110LF of 12" gas line will be relocated along the east side of the road. Potholes will be needed to determine the location and depth of the utilities and to develop solutions for conflicts with the new storm drains and the stormwater facilities. Coordinate with Culvert Replacement The proposed culvert replacement will affect the outfall locations and may cause utilities allong 42nd Avenue South to be temporary relocated. WBG022513024141SEA / TUKWILA STORMWATER DESIGN REPORT20130225 8 rnovoirur /n1_RV rHJNI uu I INC • CflMDCNV rfNFIfFNTIAI • 1 42ND AVENUE SOUTH PROJECT, CITY OF TUKWILA STORMWATER DESIGN CRITERIA AND STORMWATER MANAGEMENT CONCEPT References City of Tukwila, Department of Public Works. 2010. Infrastructure Design and Construction Standards. King County, Washington, Department of Natural Resources and Parks. 2009. Surface Water Design Manual2009. January. U.S. Department of Agriculture, Natural Resources Conservation Service (NRCS). 1973. Soil Survey, King County Area, Washington. Washington State Department of Ecology (Ecology). 2005. Stormwater Management Manual for Western Washington (SMMWW). February. WBG022513024141SEA / TUKWILA STORMWATER DESIGN REPORT_20130225 9 COPYRIGHT 2013 BY CH2M HILL, INC. • COMPANY CONFIDENTIAL Attachment A Flow Control - KCRTS Model City of Tukwila - 42" Ave S Detention Analysis — Predeveloped Conditions 233,11 13, ,sa73 Pro,. , jers .ef, 77, 117 erlm, lel 13•3 a 73', 14.7e. Tetre J.,ealere La Arrrl.es t;so Fle7 3- 37, er4.33 13,7777itiit et A '311 e3.car 1,1373 .773. 1'3, 7 rze,fle 3.3.73,731,17A 771 11 7,773eza 3,11 7,77 8,8,33,e7 e ..... tort 40 7,33e 13,,,,,ez, 7 C'7 773, A 1 ne 147 3:3 'Jeer 33 ,t,3.717 7,7 Corler, Fels rer 85.1:9c ze3, 1,7 .71, 15.,,e- tee J,,,t3r.37 Serles . tr., Sr, fere, ,roeft,' Tsea F3133 z 9e.7,1171t1.307, znf e 7r eZ7.33 . 4C .43, :teeter, 8ll8C9t5 1' 3, Jen 7.3.33, zee 7,, 77333er 3,31/3 7733,133, tri 7.73, i51,795488*85 . ... 54 0.141 I 44.5.,-CE 88 s t1.7.X 0 Ofi85 P 0-5,e 7 •913 ? 1' O7,7 , 7,11 t ; r. S,:83 4 'X 3 10 00 C an CrOfC E G 1 t1.2) zee:re: LICA 0,4 c.,;. Lae - - - - sj;ry pcy cr7854 448,8 11.848*8384 11,13412T2 Eitrillatn, • rtia2 City of Tukwila - 42nd Ave 5 Detention Analysis — Developed Conditions .7.9.511,9 taaa 94.4 , 1444-14, :,-441r4,9 4 -414 114* 1/11944 1",14 4 41 a r4a 041 14.1q >Va. Vi 1,a 19,44- 74,4a 1E4 1+1,, .41, 1, *as," 4,41, erral 4,44,11,4,4444 4,44. 4,44- :at Ferram 19:414,4 44,44 taas 1, 444 111 X.0.4,t1T ',AAA ,5,14,14 NU • ra9 C 144/44 Itre ',aver Y414 e44, 4:444,4 ‘4, fl , 1zar 49,44, Tar. 144 4.4, ann.: kVA, F.,. Ft.', 19,4-444444 119,9a tr,1, 1,44 41 1441 - - 14,144 - 11,41, 14,444 :rub 4 it, t :1•91 14 , 4 Se, : 11t 1.9 11 91 19 99 4 114 14' t9 9.91 tx4 a 44, 1 IP 1a 099. 4,1 0 "•11 TukTank.doc 2/26/2013 Retention/Detention Facility Type of Facility: Detention Tank Tank Diameter: 6.00 ft Tank Length: 135.00 ft Effective Storage Depth: 5.50 ft Stage 0 Elevation: 0.00 ft Storage Volume: 3665. cu. ft Riser Head: 6.00 ft Riser Diameter: 18.00 inches Number of orifices: 3 Full Head Pipe Orifice # Height Diameter Discharge Diameter (ft) (in) (CFS) (in) 1 0.00 0.55 0.020 2 3.70 0.70 0.020 4.0 3 5.20 0.70 0.012 4.0 Top Notch Weir: None Outflow Rating Curve: None Stage Elevation Storage Discharge Percolation (ft) (ft) (cu. ft) (ac-ft) (cfs) (cfs) 0.00 0.00 0. 0.000 0.000 0.00 0.01 0.01 0. 0.000 0.001 0.00 0.02 0.02 0. 0.000 0.001 0.00 0.03 0.03 0. 0.000 0.002 0.00 0.04 0.04 0. 0.000 0.002 0.00 0.05 0.05 0. 0.000 0.002 0.00 0.16 0.16 0. 0.000 0.003 0.00 0.28 0.28 0. 0.000 0.004 0.00 0.40 0.40 0. 0.000 0.005 0.00 0.50 0.50 0. 0.000 0.006 0.00 0.62 0.62 57. 0.001 0.006 0.00 0.74 0.74 118. 0.003 0.007 0.00 0.85 0.85 179. 0.004 0.008 0.00 0.97 0.97 248. 0.006 0.008 0.00 1.09 1.09 322. 0.007 0.009 0.00 1.21 1.21 398. 0.009 0.009 0.00 1.32 1.32 471. 0.011 0.009 0.00 1.44 1.44 553. 0.013 0.010 0.00 1.56 1.56 637. 0.015 0.010 0.00 1.68 1.68 723. 0.017 0.011 0.00 1.79 1.79 804. 0.018 0.011 0.00 1.91 1.91 894. 0.021 0.011 0.00 2.03 2.03 985. 0.023 0.012 0.00 2.15 2.15 1077. 0.025 0.012 0.00 2.26 2.26 1163. 0.027 0.012 0.00 2.38 2.38 1258. 0.029 0.013 0.00 2.50 2.50 1354. 0.031 0.013 0.00 2.62 2.62 1450. 0.033 0.013 0.00 2.74 2.74 1546. 0.035 0.014 0.00 2.85 2.85 1635. 0.038 0.014 0.00 2.97 2.97 1732. 0.040 0.014 0.00 3.09 3.09 1830. 0.042 0.014 0.00 3.21 3.21 1927. 0.044 0.015 0.00 3.32 3.32 2015. 0.046 0.015 0.00 3.44 3.44 2112. 0.048 0.015 0.00 3.56 3.56 2208. 0.051 0.015 0.00 3.68 3.68 2303. 0.053 0.016 0.00 3.70 3.70 2318. 0.053 0.016 0.00 3.71 3.71 2326. 0.053 0.016 0.00 3.72 3.72 2334. 0.054 0.017 0.00 3.73 3.73 2342. 0.054 0.017 0.00 3.74 3.74 2350. 0.054 0.019 0.00 3.75 3.75 2358. 0.054 0.019 0.00 3.76 3.76 2366. 0.054 0.019 0.00 3.77 3.77 2373. 0.054 0.019 0.00 3.88 3.88 2459. 0.056 0.022 0.00 4.00 4.00 2551. 0.059 0.024 0.00 4.12 4.12 2642. 0.061 0.025 0.00 4.24 4.24 2732. 0.063 0.027 0.00 4.35 4.35 2812. 0.065 0.028 0.00 4.47 4.47 2898. 0.067 0.029 0.00 4.59 4.59 2981. 0.068 0.030 0.00 4.71 4.71 3063. 0.070 0.031 0.00 4.82 4.82 3135. 0.072 0.032 0.00 4.94 4.94 3210. 0.074 0.033 0.00 5.06 5.06 3283. 0.075 0.034 0.00 5.18 5.18 3352. 0.077 0.035 0.00 5.20 5.20 3363. 0.077 0.035 0.00 5.21 5.21 3368. 0.077 0.035 0.00 5.22 5.22 3374. 0.077 0.036 0.00 5.23 5.23 3379. 0.078 0.037 0.00 5.24 5.24 3384. 0.078 0.038 0.00 5.25 5.25 3390. 0.078 0.038 0.00 5.26 5.26 3395. 0.078 0.039 0.00 5.38 5.38 3457. 0.079 0.042 0.00 5.49 5.49 3509. 0.081 0.044 0.00 5.61 5.61 3560. 0.082 0.046 0.00 5.73 5.73 3604. 0.083 0.048 0.00 5.85 5.85 3640. 0.084 0.050 0.00 5.96 5.96 3662. 0.084 0.052 0.00 6.00 6.00 3665. 0.084 0.052 0.00 6.10 6.10 3665. 0.084 0.515 0.00 6.20 6.20 3665. 0.084 1.360 0.00 6.30 6.30 3665. 0.084 2.460 0.00 6.40 6.40 3665. 0.084 3.750 0.00 6.50 6.50 3665. 0.084 5.220 0.00 6.60 6.60 3665. 0.084 6.650 0.00 6.70 6.70 3665. 0.084 7.180 0.00 6.80 6.80 3665. 0.084 7.670 0.00 6.90 6.90 3665. 0.084 8.140 0.00 7.00 7.00 3665. 0.084 8.570 0.00 7.10 7.10 3665. 0.084 8.990 0.00 7.20 7.30 7.40 7.50 7.60 7.70 7.20 7.30 7.40 7.50 7.60 7.70 Hyd Inflow Outflow Target Calc 1 0.19 0.08 0.18 2 0.10 ******* 0.05 3 0.15 ******* 0.04 4 0.10 ******* 0.03 5 0.12 ******* 0.03 6 0.12 ******* 0.02 7 0.09 ******* 0.01 8 0.10 ******* 0.01 3665. 3665. 3665. 3665. 3665. 3665. Peak Stage 6.03 5.69 5.54 5.03 4.56 3.64 2.60 2.52 Route Time Series through Facility Inflow Time Series File:tukdev.tsf Outflow Time Series File:rdout 0.084 9.390 0.084 9.770 0.084 10.140 0.084 10.490 0.084 10.830 0.084 11.170 Elev 6.03 5.69 5.54 5.03 4.56 3.64 2.60 2.52 0.00 0.00 0.00 0.00 0.00 0.00 Storage (Cu-Ft) (Ac-Ft) 3665. 0.084 3588. 0.082 3531. 0.081 3263. 0.075 2961. 0.068 2272. 0.052 1437. 0.033 1369. 0.031 Inflow/Outflow Analysis Peak Inflow Discharge: 0.189 CFS at 6:00 on Jan 9 in Year 8 Peak Outflow Discharge: 0.178 CFS at 9:00 on Jan 9 in Year 8 Peak Reservoir Stage: 6.03 Ft Peak Reservoir Elev: 6.03 Ft Peak Reservoir Storage: 3665. Cu-Ft 0.084 Ac-Ft Flow Frequency Analysis Time Series File:rdout.tsf Project Location:Sea-Tac ---Annual Flow Rate (CFS) 0.047 0.013 0.030 0.013 0.016 0.034 0.045 0.178 Computed Peaks Peak Flow Rates --- Rank Time of Peak 2 2/09/01 7 12/28/01 5 2/28/03 8 8/26/04 6 1/05/05 4 1/18/06 3 11/24/06 1 1/09/08 19:00 17:00 7:00 6:00 15:00 22:00 7:00 9:00 Flow Frequency Analysis - - Peaks - - Rank Return Prob (CFS) (ft) Period 0.178 6.03 1 100.00 0.990 0.047 5.69 2 25.00 0.960 0.045 5.54 3 10.00 0.900 0.034 5.03 4 5.00 0.800 0.030 4.56 5 3.00 0.667 0.016 3.64 6 2.00 0.500 0.013 2.60 7 1.30 0.231 0.013 2.52 8 1.10 0.091 0.134 6.02 50.00 0.980 Flow Duration from Time Series File:rdout.tsf Cutoff Count Frequency CDF CFS 0.001 0.002 0.003 48940 1254 522 79.811 2.045 0.851 79.811 81.856 82.707 ExceedenceProbability 20.189 0.202E+00 18.144 0.181E+00 17.293 0.173E+00 0.005 0.006 0.007 0.008 0.010 0.011 0.012 0.014 0.015 0.016 0.018 0.019 0.020 0.022 0.023 0.024 0.025 0.027 0.028 0.029 0.031 0.032 0.033 0.035 0.036 0.037 0.038 0.040 0.041 0.042 0.044 0.045 0.046 335 0.546 170 0.277 4250 6.931 2014 3.284 1689 2.754 1083 1.766 417 0.680 237 0.386 158 0.258 135 0.220 2 0.003 3 0.005 13 0.021 6 0.010 11 0.018 8 0.013 9 0.015 6 0.010 7 0.011 12 0.020 9 0.015 5 0.008 7 0.011 5 0.008 2 0.003 0 0.000 0 0.000 1 0.002 0 0.000 3 0.005 0 0.000 4 0.007 2 0.003 83.253 83.531 90.462 93.746 96.500 98.266 98.947 99.333 99.591 99.811 99.814 99.819 99.840 99.850 99.868 99.881 99.896 99.905 99.917 99.936 99.951 99.959 99.971 99.979 99.982 99.982 99.982 99.984 99.984 99.989 99.989 99.995 99.998 Duration Comparison Anaylsis Base File: tuk_predev.tsf New File: rdout.tsf Cutoff Units: Discharge in CFS Cutoff 0.018 0.020 0.022 0.024 0.027 0.029 0.031 0.033 0.035 0.037 0.040 0.042 0.044 0.046 Fraction of Time 16.747 0.167E+00 16.469 0.165E+00 9.538 0.954E-01 6.254 0.625E-01 3.500 0.350E-01 1.734 0.173E-01 1.053 0.105E-01 0.667 0.667E-02 0.409 0.409E-02 0.189 0.189E-02 0.186 0.186E-02 0.181 0.181E-02 0.160 0.160E-02 0.150 0.150E-02 0.132 0.132E-02 0.119 0.119E-02 0.104 0.104E-02 0.095 0.946E-03 0.083 0.832E-03 0.064 0.636E-03 0.049 0.489E-03 0.041 0.408E-03 0.029 0.294E-03 0.021 0.212E-03 0.018 0.179E-03 0.018 0.179E-03 0.018 0.179E-03 0.016 0.163E-03 0.016 0.163E-03 0.011 0.114E-03 0.011 0.114E-03 0.005 0.489E-04 0.002 0.163E-04 Base New %Change 0.33E-02 0.25E-02 0.19E-02 0.14E-02 0.12E-02 0.96E-03 0.64E-03 0.44E-03 0.34E-03 0.23E-03 0.15E-03 0.82E-04 0.16E-04 0.16E-04 0.18E-02 0.16E-02 0.14E-02 0.11E-02 0.95E-03 0.67E-03 0.44E-03 0.31E-03 0.18E-03 0.18E-03 0.16E-03 0.15E-03 0.98E-04 0.16E-04 - 44.6 - 33.8 - 27.7 - 21.6 - 19.4 - 30.5 - 30.8 - 29.6 - 47.6 -21.4 11.1 80.0 500.0 0.0 Check of Tolerance Probability Base New 0.33E-02 0.25E-02 0.19E-02 0.14E-02 0.12E-02 0.96E-03 0.64E-03 0.44E-03 0.34E-03 0.23E-03 0.15E-03 0.82E-04 0.16E-04 0.16E-04 0.018 0.020 0.022 0.024 0.027 0.029 0.031 0.033 0.035 0.037 0.040 0.042 0.044 0.046 0.015 0.015 0.016 0.022 0.024 0.026 0.029 0.031 0.033 0.034 0.042 0.044 0.047 0.047 %Chance - 16.3 - 23.8 - 28.0 - 9.4 - 8.9 - 9.9 - 4.6 - 6.1 - 6.9 - 9.6 6.1 6.4 7.7 2.6 Maximum positive excursion = 0.004 cfs ( 9.9%) occurring at 0.040 cfs on the Base Data:tuk_predev.tsf and at 0.044 cfs on the New Data:rdout.tsf Maximum negative excursion = 0.006 cfs (-28.2%) occurring at 0.022 cfs on the Base Data:tuk_predev.tsf and at 0.016 cfs on the New Data:rdout.tsf Attachment B Offsite Tributary Area Map PCL XL error Subsystem: TEXT Error: InternalError 0x50 Operator: Text Position: 19593 AGENCY USE ONLY WASHINGTON STATE Joint Aquatic Resources Permit Application (JARPA) Form1,2 US Army Corps of Engineers 'r Seattle District USE BLACK OR BLUE INK TO ENTER ANSWERS IN THE WHITE SPACES BELOW. AA_ O! 2V Part 1-ProjeMnt3fIcation Date received: Agency reference #: Tax Parcel #(s): 1. Project Name (A name for your project that you create. Examples: Smith's Dock or Seabrook Lane Development) [help] City of Tukwila 40th - 42nd Avenue S Phase III and Gilliam Creek Culvert Replacement Part 2-Applicant The person and/or organization responsible for the project. [help] 2a. Name (Last, First, Middle) Cyndy Knighton, Senior Program Manager - Transportation 2b. Organization (If applicable) City of Tukwila Public Works Department 2c. Mailing Address (Street or Po Box) 6300 Southcenter Blvd., Suite 100 2d. City, State, Zip Tukwila, WA. 98188 2e. Phone (1) 2f. Phone (2) 2g. Fax 2h. E-mail (206) 431-2450 (206) 433-0179 (206) 431-3665 Cyndy.Knighton@TukwilaWA.gov Additional forms may be required for the following permits: • If your project may qualify for Department of the Army authorization through a Regional General Permit (RGP), contact the U.S. Army Corps of Engineers for application information (206) 764-3495. • If your project might affect species listed under the Endangered Species Act, you will need to fill out a Specific Project Information Form (SPIF) or prepare a Biological Evaluation. Forms can be found at http://www.nws.usace.armv.mil/Missions/CivilWorks/Regulatory/Perm itGuidebook/EndangeredSpecies.aspx. • Not all cities and counties accept the JARPA for their local Shoreline permits. If you need a Shoreline permit, contact the appropriate city or county government to make sure they accept the JARPA. 2To access an online JARPA form with [help] screens, go to http://www.epermittinq.wa.gov/site/alias resourcecenter/iarpa iarpa form/9984/iarpa form.aspx. Fnr nfhcr holn rnnfmrf fhc (ln ,arnnr'c (lffirc fnr Rcni d,,inn, Innnv,4inn nnrl Accicfmnrc of lSinnl 01 znnnl nr hcln/nlnrn '.in elf,' Part 3-Authorized Agent or Contact Person authorized to represent the applicant about the project. (Note: Authorized agent(s) must sign 11 b of this application.) [help] 3a. Name (Last, First, Middle) Eilean Davis 3b. Organization (If applicable) CH2M HILL 3c. Mailing Address (Street or PO Box) 1100 112th Avenue NE, Suite 500 3d. City, State, Zip Bellevue, WA. 98004 3e. Phone (1) 3f. Phone (2) 3g. Fax 3h. E-mail (425) 233-3291 ( ) (425) 468-3100 Eilean.davis@ch2m.com Part 4-Property Owner(s) Contact information for people or organizations owning the property(ies) where the project will occur. Consider both upland and aquatic ownership because the upland owners may not own the adjacent aquatic land. [helpl ® Same as applicant. (Skip to Part 5.) ❑ Repair or maintenance activities on existing rights -of -way or easements. (Skip to Part 5.) ❑ There are multiple upland property owners. Complete the section below and fill out JARPA Attachment A for each additional property owner. ❑ Your project is on Department of Natural Resources (DNR)-managed aquatic lands. If you don't know, contact the DNR at (360) 902-1100 to determine aquatic land ownership. If yes, complete JARPA Attachment E to apply for the Aquatic Use Authorization. 4a. Name (Last, First, Middle) Cyndy Knighton, Senior Program Manager - Transportation 4b. Organization (If applicable) City of Tukwila Public Works Department 4c. Mailing Address (Street or PO Box) 6300 Southcenter Blvd., Suite 100 4d. City, State, Zip Tukwila, WA. 98188 4e. Phone (1) 4f. Phone (2) 4g. Fax 4h. E-mail (206) 431-2450 (206) 433-0179 (206) 431-3665 Cyndy.Knighton @TukwilaWA.gov Part 5—Project Location(s) Identifying information about the property or properties where the project will occur. [heir)) ® There are multiple project locations (e.g. linear projects). Complete the section below and use JARPA Attachment B for each additional project location. 5a. Indicate the type of ownership of the property. (Check all that apply.) [help1 ❑ Private ❑ Federal a Publicly owned (state, county, city, special districts like schools, ports, etc.) ❑ Tribal ❑ Department of Natural Resources (DNR) — managed aquatic lands (Complete JARPA Attachment E) 5b. Street Address (Cannot be a PO Box. If there is no address, provide other location information in 5p.) [help] 42nd Avenue S between Southcenter Blvd. and S 160th Street. 5c. City, State, Zip (If the project is not in a city or town, provide the name of the nearest city or town.) [help.' Tukwila, WA. 98188 5d. County [helpl King 5e. Provide the section, township, and range for the project location. [help] '/4 Section Section Township Range SW 22 23N 04E 5f. Provide the latitude and longitude of the project location. [help] • Example: 47.03922 N lat. /-122.89142 W long. (Use decimal degrees - NAD 83) 47.464972 N Lat /-122.2813 W Long (culvert replacement), 47.465783 N lat /-122.281181 W long to 47.459731 N lat /-122.281172 W long (roadway improvements) 5g. List the tax parcel number(s) for the project location. [help) • The local county assessor's office can provide this information. 004300 0270 (culvert location); remaining project property (42nd Avenue S) is city owned right of way 5h. Contact information for all adjoining property owners. (If you need more space, use JARPA Attachment C.) [help] Name Mailing Address Tax Parcel # (if known) City of Tukwila 6300 Southcenter Blvd, Suite 100 .................................................................................................................................................................................................................................................... Tukwila, WA. 98188 003400 0271 O'Hare Cottage Woods 967 Utsalady Road Camano Island, WA. 98282 222304 9041 004300 0216 Ashoo & Rachna LLC 3704 55th Street NE .................................................................................................................................................................................................................................................... Tacoma, WA. 98422 004300 0219 004300 0221 Yilma, Minewyelet F 2606 2nd Avenue #539 .................................................................................................................................................................................................................................................... Seattle, WA. 98121 004300 0218 5i. List all wetlands on or adjacent to the project location. [help] No wetlands were identified on or within 100-feet of the culvert replacement project or within the 42nd Avenue S. right of way. 5j. List all waterbodies (other than wetlands) on or adjacent to the project location. [help] Gilliam Creek Gilliam Creek is located within the project location. The creek crosses under 42nd Avenue S. about 450 feet south of Southcenter Blvd and about 300 feet north of the SR 518. Ditches Two roadside drainage ditches were identified. Ditch 1; a southeast ditch, about 388 feet long, that conveys stormwater into Gilliam Creek from the south through a piped stormwater drainage system located beneath 42nd Avenue S, and Ditch 2, a southwest ditch, about 20 feet long, that conveys stormwater into Gilliam Creek from the southwest through a piped stormwater drainage system. 5k. Is any part of the project area within a 100-year floodplain? [help] ❑ Yes // No ❑ Don't know 51. Briefly describe the vegetation and habitat conditions on the property. [help] Gilliam Creek Vegetation was observed upstream of Gilliam Creek; dominant vegetation was reed canarygrass, creeping buttercup, big -leaf maple, and red alder, and downstream of Gilliam Creek; dominant vegetation was wild geranium, big -leaf maple, and cottonwood. Ditches Of the two ditches only Ditch 1 has vegetation. The lower 88 feet of the southeast ditch is vegetated with lady fern, horsetail, European nightshade, creeping buttercup, reed canarygrass, Himalayan blackberry, English laurel, and American holly. The upper 300 feet of the ditch is gravel lined. Vegetation along the southwest ditch included European nightshade, creeping buttercup, reed canarygrass, Himalayan blackberry, and morning gOory (field bindweed). Habitat conditions are of low value due to heavy urban and roadway development in the area. 5m. Describe how the property is currently used. [help] The property is currently City of Tukwila right-of-way and consists of an existing two way roadway with the existing culvert located underneath the roadway surface. On one project property, owned by the City of Tukwila, there is a residential structure. The project may impact the property to construct a stormwater detention facility, however, the residential structure will not be impacted by the project. 5n. Describe how the adjacent properties are currently used. [help] Surrounding properties consist of multi -family and single family residential and City of Tukwila owned right of way. 5o. Describe the structures (above and below ground) on the property, including their purpose(s) and current condition. [heipj Structures below ground include underground utilities including the existing culvert, a 24-inch sanitary sewer in the center of the roadway, two (a 4-inch and a 12-inch) Puget Sound Energy gas lines, a 12-inch water line, telecommunications conduits, and a Seattle City Light duct bank. Above ground structures include 42nd Ave S roadway, a single family residence owned by the City of Tukwila, overhead utilities, and elevated structures associated with SR 518 and the Sound Transit Link light rail guideway. 5p. Provide driving directions from the closest highway to the project location, and attach a map. [help' From 1-405, take the Southcenter Blvd exit west to 42nd Avenue S, turn left on 42nd Avenue S and continue about 450 feet south to the project location. From 1-5 south, take Southcenter Blvd exit west toward Burien/SeaTac Airport, follow sign to Southcenter Blvd and Southcenter Mall, turn right onto Southcenter Blvd, continue to 42nd Avenue S, then turn left and continue south on 42nd Avenue S about 450 feet to project location. Part 6—Project Description 6a. Briefly summarize the overall project. You can provide more detail in 6b. [help] The project includes the replacement of a non -fish passable, 92-foot long, 3-foot diameter concrete culvert with a 146-foot long, 16-foot wide by 8-foot, 4-inch rise single radius corrugated metal pipe (CMP) fish passable culvert. Construction of the road widening project would occur from Southcenter Boulevard to S. 160th Street. The Gilliam Creek limits are assumed to extend approximately 200 feet upstream and 200 feet downstream of the existing culvert under 42nd Avenue S. The proposed culvert location would be shifted approximately 17 feet south of the existing culvert to minimize impacts to the existing rockery wall on the north side of the existing culvert inlet, and the very large boulders on the north side of the existing culvert outlet. Approximately 25 feet of upstream channel and 50 feet of downstream channel will be reconstructed because of the shifted position of the new culvert. The new culvert would have a slope of 3.8 percent. The multi -plate CMP culvert would be supported by concrete footings that will be 2 feet square and 2 feet deep. The footings were sized to provide adequate support to the load from the soil on top of the culvert, and deep enough to protect the footings from being undermined by the stream flow. The existing bankfull width downstream of the culvert was measured at about 11.5 feet. The proposed culvert bed width would be about 16 feet wide under the new culvert. Construction of the road widening project includes asphalt overlay and replacement, curb, gutter, bike lane/sharrow, sidewalks, lighting, storm drainage facilities, and utility relocations as well as the culvert replacement described above. Both northbound and southbound lanes of 42nd Avenue S would have a 14-foot wide shared lane for vehicles and bicycles. Both sides of the roadway would have new curbs and gutters, 4-foot wide amenity zones, and sidewalks with a minimum width of 5 feet. A new storm drain collection, conveyance, treatment and flow control system is proposed. Stormwater treatment consisting of either a pond or vault would be constructed within city owned property. Stormwater pretreatment units are proposed to provide some water quality treatment prior to discharge of stormwater runoff to Gilliam Creek. The proposed conveyance and detention system include a new outfall to Gilliam Creek. The existing roadside ditches on the southeast and southwest sides of 42nd Avenue S will be filled and the existing stormwater flows will be piped. The existing stormwater flow pattern will not be altered. The road widening project will require the relocation of existing utility lines located within 42nd Avenue S. 6b. Describe the purpose of the project and why you want or need to perform it. [heipi The project would improve safety in the corridor for motorized and non -motorized vehicles and pedestrians. The culvert will be replaced as a result of the 42nd Avenue S road widening project, which is included in the City's Capital Improvement plan. The design of the culvert is intended to replace a deteriorating non -fish passable culvert with a 16-foot wide fish passable culvert that is designed to meet WDFW requirements for a stream simulation design. Design of the required crossing width is based on field measurement of the bankfull width (BFW) of the creek. The existing 42nd Avenue S crossing concrete culvert is 36-inches in diameter with a slope of approximately 5%. This culvert is currently not a fish passage culvert and is undersized causing water to back up at the inlet side even during small storm events. The streambed channel upstream and downstream of the culvert needs to be reconstructed because of the widening of the stream bed and shift in location. 6c. Indicate the project category. (Check all that apply) [help] ❑ Commercial ❑ Residential ❑ Institutional ❑ Maintenance ❑ Environmental Enhancement ❑ Recreational /1 Transportation 6d. Indicate the major elements of your project. (Check all that apply) [help] ❑ Aquaculture ❑ Float ❑ Floating Home ❑ Geotechnical Survey ❑ Land Clearing ❑ Marina / Moorage ❑ Mining /1 Culvert ►/ Retaining Wall ❑ Dam / Weir ❑ Dike / Levee / Jetty ❑ Ditch ❑ Dock / Pier ❑ Dredging ❑ Fence ❑ Ferry Terminal ❑ Fishway (upland) Bank Stabilization ❑ Boat House ❑ Boat Launch ❑ Boat Lift ❑ Bridge ❑ Bulkhead ❑ Buoy ❑ Channel Modification I Road ❑Scientific Measurement Device ❑ Stairs /1 Stormwater facility /1 Outfall Structure ❑ Swimming Pool ❑ Piling/Dolphin ❑ Raft �/ Utility Line ❑ Other: 6e. Describe how you plan to methods and equipment • Identify where each element • Indicate which activities are construct each project element to be used. [help] checked in 6d. Include specific construction waterbody. will occur in relation to the nearest within the 100-year floodplain. Construction of the replacement culvert would occur within the Gilliam Creek streambed. The existing concrete culvert would be removed and replaced from the roadway surface of 42nd Avenue S with a metal plate arch culvert. The footings for the culvert would be pour -in place and the culvert would be assembled onsite from pre- fabricated metal plates. The proposed bottom of the streambed gravel is approximately 16 feet from the existing roadway surface. The existing roadway width is approximately 40 feet. The deep excavation needed to install the proposed culvert requires a very wide excavation limit making it impractical to maintain even one lane of traffic for both traffic directions during construction. It is recommended that 42nd Avenue S be closed during the installation of the culvert. A detour plan would be provided to reroute traffic around the project area and access to residences within the project area would be provided. Gilliam Creek flows year round and construction of the replacement culvert would require that the stream be redirected during construction. The creek would be redirected into a pipe to divert water flow away from the streambed and allow the creek to dry up for in channel work. The redirected flows would be delivered to the rinutnetrenm cirle of thin ri ilvart Coarse streambed bands will be installed in the channel to provide additional stability of the streambed gravel, and to provide shelter for migrating fish from the high flow velocity. A shallow low flow channel is included to allow typically annual low flow to pass through. The streambed gravel will be 3 feet thick. 6f. What are the anticipated start and end dates for project construction? (Month/Year) [help] • If the project will be constructed in phases or stages, use JARPA Attachment D to list the start and end dates of each phase or stage. Start date: April 2015 End date: October 2015 ❑ See JARPA Attachment D 6g. Fair market value of the project, including materials, labor, machine rentals, etc. [help] About $640,000 6h. Will any portion of the project receive federal funding? [help] • If yes, list each agency providing funds. ❑ Yes /1 No ❑ Don't know Part 7—Wetlands: Impacts and Mitigation ❑ Check here if there are wetlands or wetland buffers on or adjacent to the project area. (If there are none, skip to Part 8.) [help] 7a. Describe how the project has been designed to avoid and minimize adverse impacts to wetlands. [help] A Not applicable No wetlands were identified on or within 100 feet of the proposed project footprint. 7b. Will the project impact wetlands? [help] ❑ Yes /1 No ❑ Don't know 7c. Will the project impact wetland buffers? Ihelpl ❑ Yes /1 No ❑ Don't know 7d. Has a wetland delineation report been prepared? [help] • If Yes, submit the report, including data sheets, with the JARPA package. Yes No 7e. Have the wetlands been rated using the Western Washington or Eastern Washington Wetland Rating System? [heir)] • If Yes, submit the wetland rating forms and figures with the JARPA package. ❑ Yes // No ❑ Don't know 7f. Have you prepared a mitigation plan to compensate for any adverse impacts to wetlands? [help] • If Yes, submit the plan with the JARPA package and answer 7g. • If No, or Not applicable, explain below why a mitigation plan should not be required. ❑ Yes /1 No ❑ Not applicable There would be no impacts to wetlands, therefore a mitigation plan is not needed. 7g. Summarize what the mitigation plan is meant to accomplish, and describe how a watershed approach was used to design the plan. [help] Does not apply. 7h. Use the table below to list the type and rating of each wetland impacted, the impact, and the type and amount of mitigation proposed. Or if you are submitting similar table, you can state (below) where we can find this information in the extent and duration a mitigation plan. fheipl of the plan with a Activity (fill, drain, excavate, flood, etc.) Wetland Name' Wetland type and rating category2 Impact area (sq. ft. or Acres) Duration of impact3 Proposed mitigation type° Wetland mitigation area (sq. ft. or acres) ' If no official name for the wetland exists, create a unique name (such as 'Wetland 1"). The name should be consistent with other project documents, such as a wetland delineation report. 2 Ecology wetland category based on current Western Washington or Eastern Washington Wetland Rating System. Provide the wetland rating forms with the JARPA package. 3lndicate the days, months or years the wetland will be measurably impacted by the activity. Enter "permanent" if applicable. Creation (C), Re-establishment/Rehabilitation (R), Enhancement (E), Preservation (P), Mitigation Bank/In-lieu fee ($) Page number(s) for similar information in the mitigation plan, if available: 7i. For all filling activities identified in 7h, describe the source and nature of the fill material, the amount in cubic yards that will be used, and how and where it will be placed into the wetland. fhe431 Does not apply. 7j. For all excavating activities identified in 7h, describe the excavation method, type and amount of material in cubic yards you will remove, and where the material will be disposed. [hello] Does not apply. Part 8—Waterbodies (other than wetlands): Impacts and Mitigation In Part 8, "waterbodies" refers to non -wetland waterbodies. (See Part 7 for information related to wetlands.) [help] ® Check here if there are waterbodies on or adjacent to the project area. (If there are none, skip to Part 9.) 8a. Describe how the project is designed to avoid and minimize adverse impacts to the aquatic environment. [help] ❑ Not applicable Replacement of the existing concrete culvert would require in stream work and rerouting of the stream flows, which would temporarily impact the streambed. However, Gilliam Creek is currently a non -fish bearing stream and the project would install a fish passable culvert, therefore impacts to the stream would be beneficial and there would be no adverse impacts to aquatic life. The following impact avoidance measure would be implemented: • Construction of the replacement culvert and reconstruction of the stream bed would take place within the regulated fish window (August) • The replacement culvert would be prefabricated • A Spill Prevention Control and Countermeasure (SPCC) plan will be prepared prior to construction • The stream flow will be bypassed downstream of the construction site 8b. Will your project impact a waterbody or the area around a waterbody? [heipi /1Yes No 8c. Have you prepared a mitigation plan to compensate for the project's adverse impacts to non -wetland waterbodies? [helpl • If Yes, submit the plan with the JARPA package and answer 8d. • If No, or Not applicable, explain below why a mitigation plan should not be required. ❑ Yes // No ❑ Not applicable Construction of the fish passable culvert would be an improvement from current conditions and therefore beneficial; additional mitigation is not proposed. 8d. Summarize what the mitigation plan is meant to accomplish. Describe how a watershed approach was used to design the plan. • If you already completed 7g you do not need to restate your answer here. [helpl Does not apply. A mitigation plan is not proposed. 8e. Summarize impact(s) to each waterbody in the table below. [help] Activity (clear, dredge, fill, pile drive, etc.) Waterbody name' Impact location2 Duration of impact3 Amount of material (cubic yards) to be placed in or removed from waterbody Area (sq. ft. or linear ft.) of waterbody directly affected Fill (streambed) Gilliam Creek Instream Permanent Approx. 356 Approx. 3,200 sq. ft. Fill (Footings) Gilliam Creek Instream Permanent Approx. 0.3 Approx. 4 sq. ft. Excavation (Streambed) Gilliam Creek Instream Permanent Approx. 3,600 Approx. 135 If Q....LFill ........,.d !'_`illi...... A ...1;.-.....-....4 n.......... 4Oc Lc Fill Southeast Ditch Instream Permanent Approx. 1,460 Approx. 385 If Fill Southwest Ditch Instream Permanent Approx. 18 Approx. 20 If If no official name for the waterbody exists, create a unique name (such as "Stream 1 ") The name should be consistent with other documents provided. 2 Indicate whether the impact will occur in or adjacent to the waterbody. If adjacent, provide the distance between the impact and the waterbody and indicate whether the impact will occur within the 100-year flood plain. 3Indicate the days, months or years the waterbody will be measurably impacted by the work. Enter "permanent" if applicable. 8f. For all activities identified in 8e, describe the source and nature of the fill material, amount (in cubic yards) you will use, and how and where it will be placed into the waterbody. ihelpl Fill material would be streambed gravel for reconstruction of the stream channel. The gravel would come from an approved, local source. Fill material for the ditches would be pipe bedding material and backfill from an approved, local source. 8g. For all excavating or dredging activities identified in 8e, describe the method for excavating or dredging, type and amount of material you will remove, and where the material will be disposed. [help] Typical construction equipment such as backhoe, bobcat, and materials trucks would be used to reconstruct the stream channel and construct the replacement culvert. Approximately 3,600 cubic yards of streambed substrate would be excavated. Part 9—Additional Information Any additional information you can provide helps the reviewer(s) understand your project. Complete as much of this section as you can. It is ok if you cannot answer a question. 9a. If you have already worked with any government agencies on this project, list them below. [help] Agency Name Contact Name Phone Most Recent Date of Contact Washington Department of Fish and Wildlife Larry Fisher (425) 775-1311 March 2014 ( ) ( ) 9b. Are any of the wetlands Department of Ecology's • If Yes, list the parameter(s) • If you don't know, use http://www.ecv.wa.pov/programs/wp/303d/. or waterbodies identified in 303(d) List? [help] Part 7 or Part 8 of this JARPA on the Washington Water Quality Assessment tools at: below. Washington Department of Ecology's ❑ Yes I No 9c. What U.S. Geological Survey Hydrological Unit Code (HUC) is the project in? [help] • Go to http://cfpub.epa.gov/surf/locate/index.cfm to help identify the HUC. Puget Sound Watershed -- 17110019 9d. What Water Resource Inventory Area Number (WRIA #) is the project in? [help] • Go to http://www.ecv.wa.gov/services/gis/maps/wria/wria.htm to find the WRIA #. WRIA #9 — Green River Basin 9e. Will the in -water construction work comply with the State of Washington water quality standards for turbidity? [helpl • Go to http://www.ecv.wa.gov/programs/wo/swgs/criteria.html for the standards. /1 Yes ❑ No ❑ Not applicable 9f. If the project is within the jurisdiction of the Shoreline Management Act, what is the local shoreline environment designation? [help] • If you don't know, contact the local planning department. • For more information, go to: http://www.ecv.wa.gov/programs/sea/sma/laws rules/173-26/211 designations.html. ❑ Rural ❑ Urban ❑ Natural ❑ Aquatic ❑ Conservancy ❑ Other 9g. What is the Washington Department of Natural Resources Water Type? [heipl • Go to http://www.dnr.wa.gov/BusinessPermits/Topics/ForestPracticesApplications/Pages/fp watertyping.aspx for the Forest Practices Water Typing System. ❑ Shoreline ❑ Fish ' Non -Fish Perennial ❑ Non -Fish Seasonal 9h. Will this project be designed to meet the Washington Department of Ecology's most current stormwater manual? [heipl • If No, provide the name of the manual your project is designed to meet. Yes ❑ No Name of manual: 2012 Stormwater Manual for Western Washington 9i. Does the project site have known contaminated sediment? [help] • If Yes, please describe below. ❑ Yes a No 9j. If you know what the property was used for in the past, describe below. [heipl Unknown. 9k. Has a cultural resource (archaeological) survey been performed on the project area? [help] • If Yes, attach it to your JARPA package. /1Yes No 91. Name each species listed under the federal Endangered Species Act that occurs in the vicinity of the project area or might be affected by the proposed work. [help' There are no listed species known to occur within the vicinity of the project. 9m. Name each species or habitat on the Washington Department of Fish and Wildlife's Priority Habitats and Species List that might be affected by the proposed work. [help] There are no listed species or habitat that would be affected by the proposed project. Part 10—SEPA Compliance and Permits Use the resources and checklist below to identify the permits you are applying for. • Online Project Questionnaire at http://apps.ecy.wa.gov/opas/. • Governor's Office for Regulatory Innovation and Assistance at (800) 917-0043 or help(a�ora.wa.gov. • For a list of addresses to send your JARPA to, click on agency addresses for completed JARPA. 10a. Compliance with the State Environmental Policy Act (SEPA). (Check all that apply.) [help] • For more information about SEPA, go to www.ecy.wa.gov/programs/sea/sepa/e-review.html. ❑ A copy of the SEPA determination or letter of exemption is included with this application. /1 A SEPA determination is pending with the City of Tukwila. The expected decision date is July/August 2014. ❑ I am applying fora Fish Habitat Enhancement Exemption. (Check the box below in 10b.) [help] ❑ This project is exempt (choose type of exemption below). ❑ Categorical Exemption. Under what section of the SEPA administrative code (WAC) is it exempt? ❑ Other: ❑ SEPA is pre-empted by federal law. 10b. Indicate the permits you are applying for. (Check all that apply.) [help] LOCAL GOVERNMENT Local Government Shoreline permits: ❑ Substantial Development ❑ Conditional Use ❑ Variance ❑ Shoreline Exemption Type (explain): Other City/County permits: ❑ Floodplain Development Permit ❑ Critical Areas Ordinance STATE GOVERNMENT Washington Department of Fish and Wildlife: // Hydraulic Project Approval (HPA) ❑ Fish Habitat Enhancement Exemption — Attach Exemption Form Effective July 10, 2012, you must submit a check for $150 to Washington Department of Fish and Wildlife, unless your project qualifies for an exemption or alternative payment method below. Do not send cash. Check the appropriate boxes: ❑ $150 check enclosed. Check # Attach check made payable to Washington Department of Fish and Wildlife. ❑ Charge to billing account under agreement with WDFW. Agreement # ❑ My project is exempt from the application fee. (Check appropriate exemption) ❑ HPA processing is conducted by applicant -funded WDFW staff. Agreement # ❑ Mineral prospecting and mining. ❑ Project occurs on farm and agricultural land. (Attach a copy of current land use classification recorded with the county auditor, or other proof of current land use.) ❑ Project is a modification of an existing HPA originally applied for, prior to July 10, 2012. HPA # Washington Department of Natural Resources: ❑ Aquatic Use Authorization Complete JARPA Attachment E and submit a check for $25 payable to the Washington Department of Natural Resources. Do not send cash. Washington Department of Ecology: /1 Section 401 Water Quality Certification FEDERAL GOVERNMENT United States Department of the Army permits (U.S. Army Corps of Engineers): LI Section 404 (discharges into waters of the U.S.) ❑ Section 10 (work in navigable waters) United States Coast Guard permits: ❑ Private Aids to Navigation (for non -bridge projects) Part 11—Authorizing Signatures Signatures are required before submitting the JARPA package. The JARPA package includes the JARPA form, project plans, photos, etc. [help] 11 a. Applicant Signature (required) [heipl I certify that to the best of my knowledge and belief, the information provided in this application is true, complete, and accurate. I also certify that I have the authority to carry out the proposed activities, and I agree to start work only after I have received all necessary permits. I hereby authorize the agent named in Part 3 of this application to act on my behalf in matters related to this application. (initial) By initialing here, I state that I have the authority to grant access to the property. I also give my consent to the permitting agencies entering the property where the project is located to inspect the project site or any work related to the project. (initial) Applicant Printed Name 11 b. Authorized Agent Signature [heir)] Applicant Signature Date I certify that to the best of my knowledge and belief, the information provided in this application is true, complete, and accurate. I also certify that I have the authority to carry out the proposed activities and I agree to start work only after all necessary permits have been issued. Authorized Agent Printed Name Authorized Agent Signature Date 11 c. Property Owner Signature (if not applicant) [helpl Not required if project is on existing rights -of -way or easements. I consent to the permitting agencies entering the property where the project is located to inspect the project site or any work. These inspections shall occur at reasonable times and, if practical, with prior notice to the landowner. Property Owner Printed Name Property Owner Signature Date 18 U.S.0 §1001 provides that: Whoever, in any manner within the jurisdiction of any department or agency of the United States knowingly falsifies, conceals, or covers up by any trick, scheme, or device a material fact or makes any false, fictitious, or fraudulent statements or representations or makes or uses any false writing or document knowing same to contain any false, fictitious, or fraudulent statement or entry, shall be fined not more than $10,000 or imprisoned not more than 5 years or both. If you require this document in another format, contact the Governor's Office for Regulatory Innovation and Assistance (ORIA) at (800) 917-0043. People with hearing loss can call 711 for Washington Relay Service. People with a speech disability can call (877) 833-6341. WASHINGTON STATE Joint Aquatic Resources Permit Application (DARPA) [help] US Army Corps of Engineers Seattle District Attachment C: Contact information for adjoining property owners. [help] Use this attachment only if you have more than four adjoining property owners. Use black or blue ink to enter answers in white spaces below. 1. Contact information for all adjoining property owners. [help] AGENCY USE ONLY Date received: Agency reference #: Tax Parcel #(s): TO BE COMPLETED BY APPLICANT [help] Project Name: 42' Ave S Culvert Replacement Location Name (if applicable): Tukwila WA. J Name Mailing Address Tax Parcel # (if known) Otiato, Judith D 15405 42nd Ave S ............................................................................................ Tukwila, WA. 98188 004300 0220 If you require this document in another format, contact the Governor's Office for Regulatory Innovation and Assistance (ORIA) at (800) 917-0043. People with hearing loss can call 711 for Washington Relay Service. People with a speech disability can call (877) 833-6341. ORIA publication number: ENV-022-09 rev. 08/2013 CITY OF TUKWILA IEEFERSCN L1 GRAYS ARBOR PACIFIC MAR VICINITY MAP NOT TO SCALE WHATLGM OKANOGAN 14L��B� \ NIN1"117 111 ..GNAREOR CtYMPr PIERCE LEWIS t SRAOI HOMISH EVERETT YAAL. WTRAS G. GRANT FER NCOLN PEND ORELLE STEVENS SPO E O PO ADAMS BENTON VA141CpTAT - - N LOCATION MAP NOT TO SCALE FRAN YARTMAN I GARFIELD COLUMBIA WALLA WALLA� IASOTIN) A REFERENCE: LOCATION: APPLICANT: City of Tukwila PROPOSED PROJECT: 40th - 42nd Avenue South - Phase III LAT: N 47.464972 IN: Gilliam Creek ADJACENT PROPERTY OWNERS: LONG: W-122.281181 NEAR/AT: City of Tukwila COUNTY: King P] A 4 /lam n nnrr_ F. .I._ nnw A .... 20 210 00 90 GILL/AM ►���- Reck 21,00 0 10 20 SCALE IN FEET F- Q EXISTING GROUND 220 210 - _ 200 21+00 REFERENCE NUMBER: APPLICANT NAME: City of Tukwila PROPOSED PROJECT: 40th - 42nd Avenue South - Phase III 190 LOCATION: Tukwila, WA CI IPI T 7 (1G Q fl TI=• I,dv'/n1.4 N W Z J s U Q 2 220 210 0 10 20 SCALE IN FEET GC 21+97.37 /BEGIN CHANNEL CONSTRUCTION PROPOSED CULVERT, SEE SHEET 6 FOR DETAIL EXISTING 36" CULVERT 200_ 190 EXISTING GROUND N 5 0LU L.m PROPOSED GROUND COARSE BAND N W Z J x U 12" G 22+00 REFERENCE NUMBER: APPLICANT NAME: City of Tukwila PROPOSED PROJECT: 40th - 42nd Avenue South - Phase III 23+00 220 210 200 190 LOCATION: Tukwila, WA GC -LINE 42ND 220 210 200 190 Q24" SS FILL 12"'W TOP OF I i_! CULVERT SCL DB COARSE BAND FLOW LINE 3.76% STREAMBED GRAVEL (36" THICK) FILL wV CQAR$E BAND sr / / / / / / / sr CUT tn K N- w ti co D N t0U N,N U-JZ 0 11 uJ / \ sr / / / z o_ w o Z Uz UO z tij O fnz z p N W Q M = N CD N1- Z U- 0 10 20 SCALE IN FEET MATCH LINE 24+60 EXISTING CONCRETE DAM EXISTING GROUND 24+00 REFERENCE NUMBER: APPLICANT NAME: City of Tukwila PROPOSED PROJECT: 40th - 42nd Avenue South - Phase III LOCATION: Tukwila, WA SHEET 4 OF 9 DATE: July 2014 20 10 00 90 GILLIAM CREEK 26+00 0 10 20 SCALE IN FEET EXISTING GROUND ----------------------------------------------------- 1220 210 200 25+00 REFERENCE NUMBER: APPLICANT NAME: City of Tukwila PROPOSED PROJECT: 40th - 42nd Avenue South - Phase III 190 26+00 LOCATION: Tukwila, WA CL 42ND AVE S. - PROPOSED GRADE EX 12"G EX 4"G 24" SS JOINT ELECTRICALI /--- COMM.DUCTBANK R=96' ��Cj q; 1 "mill :c =III LI11 lfi GRAVEL BORROW (6") <///\ REFERENCE NUMBER: APPLICANT NAME: City of Tukwila PROPOSED PROJECT: 40th - 42nd Avenue South - Phase III CULVERT SECTION 16'DIA CMP (10 GAUGE) MULTI -PLATE ARCHES CULVERT EX 12" W EXISTING 36" CONC CULVERT STREAMBED GRAVEL (36" THICK) CONCRETE FOOTING (2'x2') GRAVEL BASE (6") NOTES: 1. GRAVEL BORROW SHALL BE PER WSDOT STD SPECIFICATION 9-03.14(1). 2. STREAMBED GRAVEL SHALL CONSIST A WELL BLENDED MIXTURE OF 12" COBBLE (APPROX 80%), ONE MAN STREAM BOULDER (APPROX 10%), AND TWO MAN STREAM BOULDER (APPROX 10%). PER WSDOT STD SPECIFICATION 9-03.11(2) AND 9-03.11(3). LOCATION: Tukwila, WA Qi-1I-I-T R f1C O IIATI • LJ.,'Jl11A 11. 31- ST uJ Cs1 0 up 0 co 14- 'n m WI co co (OVERPASS) sl 7 0 N U. Z e — 2o) 0_ W ' < w000 CO .. Lu CO ai • M 0 2 z uj Z > (3") u_ 0 I— a < 0 z Z w 2 u j < Cr) c‘j r- c‘ 0 0 d- I—E- w�-I < W HI CI_ -c OUJ IS 4-- IS IS 1.1.q ' % % 0 IM —J an T — 11. u. —1 DP — D ail 0 (9 z < zI co .Tc 0 cc I= LU 0 0 p — DP LT. 91 cc 0 w 0 DP — 91 uJ IjJ u. oz uJ 1? ) CNI § (c3o) 7 _c I- 13 ' < a w f CO w M 0 2 z < W Z eL > cr) .. U- 0 I— a Z 0 z z 2 en u, < cq 00 w 0 •cr uu CL LU u- CL 0 4= OW UU CL CC CD 0. ?,; TECHNICAL MEMORANDUM CH2MHILL® Archaeological Investigation for City of Tukwila 42nd Avenue S Culvert Replacement PREPARED FOR: City of Tukwila COPY TO: Roger Mason, CH2M HILL Eric Haupt, CH2M HILL Rob Rodland, CH2M HILL PREPARED BY: Robin McClintock and Julie Wilt/CH2M HILL DATE: June 12, 2014 Summary This report presents the results of the CH2M HILL archaeological investigation for the City of Tukwila 42nd Avenue S. Culvert Replacement. The culvert replacement requires a U.S. Army Corps of Engineers 404 permit, and therefore subjects the action to Section 106 of the National Historic Preservation Act (NRHP), as amended. The archaeological investigation included background research and a pedestrian reconnaissance. No subsurface investigations were conducted. Background research consisted of a literature and site record review conducted at the online Washington Department of Archaeology and Historic Preservation (DAHP) WISAARD website. The field investigation was conducted by CH2M HILL archaeologists, Robin McClintock, Doug McFarland, M.A., RPA, and Mary Petrich-Guy. This report was prepared by Robin McClintock and Julie Wilt, M.A. No standing structures or archaeological resources were identified during the field reconnaissance. Project Setting The proposed 42nd Avenue S replacement culvert crosses Gilliam Creek, an east -west stream approximately 300 feet south of Southcenter Boulevard, in the City of Tukwila, WA. The archaeological Area of Potential Effect (APE) is located in Township 23 North, Range 4 East, and in the northwest quarter of the southeast quarter of Section 22 (Figures 1-2). The area is substantially developed with residential housing bordering the creek. On each side of the existing culvert, the creek is deeply incised with the creek bed approximately 10 feet below the 42nd Avenue S road bed. The creek exhibits steep slopes topped by fences bordering residential housing. Large basalt boulder armoring is present along these slopes at both ends of the culvert (Photos 1-2). Project Description The project includes the replacement of a non -fish passable, 92-foot long, 3-foot diameter concrete culvert with a 146-foot long, 16-foot wide by 8-foot, 4-inch rise single radius CMP fish passable culvert, which will be constructed as part of the city's 42nd Avenue S road widening project. The proposed culvert location would be shifted approximately 17 feet south of the existing culvert to minimize impacts to the existing rockery wall on the north side of the existing culvert inlet, and the very large boulders on the north side of the existing culvert outlet. Approximately 25 feet of upstream channel and 50 feet of downstream channel will be reconstructed because of the shifted position of the new culvert. The area of potential effect is estimated at 50 feet (15.25 meters) by 180 feet (55 meters) (Figure 3). ARCHAEOLOGICAL INVESTIGATION FOR CITY OF TUr. .LA 42ND AVENUE S CULVERT REPLACEMENT Legend Area of Potential Effect (APE) USGS 7.5 USGS Quadrangle: Des Moines, Wash 1991 Township 23 N, Range 4E, Section 22 0 12s a0 wo Mets \ f EDERAt P7+ERC&LiI Figure 1 Area of Potential Effect (APE) Tukwila 42 Avenue S. Culvert Replacement Kra County, Washington Pa] • ',TCP,fP P014. to vet, t't! rallPe.t.oI roe s*G GOataC014_P role ct T!G*1Vi Ok'Fijrrc t_,4P E_USGSmF7 Q ARCHAEOLOGICAL INVESTIGATION FOR CII TUKWILA 42ND AVENUE S CULVERT REPLACEMENT LI wca: Eut Oty;ka4 lobo, 1-s!Ia3J, lJCj3; L-ac_s.:- ;( Clatrafaxian, ; arcayr'Isl, t7 N, i ', mv*ln; o, Ejr1d >>111JIR11 g Legend Area of Potential Effect (APE) Township 23 N, Range4E, Section 22 N 0 26 m +ao Mktg Figure 2 Project Location Tukwila 42 Avenue S. Culvert Replacement King County, Washington lzro1pSC1 It. MIRA Solnc $li b03tdC01i_Pro CtS'QIS 1UN3Y7'Xrrz'F y1 re?_AP E.mx] ARCHAEOLOGICAL INVESTIGATION FOR CITY OF TUFkormcA 42ND AVENUE S CULVERT REPLACEMENT Methodology A file search was conducted using the DAHP WISAARD online cultural resources database. The search was to identify previously conducted investigations and previously recorded sites within 0.5 mile of the culvert. The field reconnaissance consisted of a pedestrian examination of both ends of the culvert and upstream and downstream an additional 150 feet to identify any historic or pre -contact artifacts, or features that might indicate the presence of such artifacts. Findings The nearest investigation was the Burien to Renton Rapid -Ride F Line Project (AMEC 2010) conducted along Southcenter Boulevard. That investigation identified no archaeological sites within a mile of the current project. The archaeological site nearest the current project is 45KI6, over one (1) mile distant adjacent to the Green River and 1-405. That pre -contact site, recorded in 1963, contained a shell midden, fire cracked rock, and lithic debitage. The pedestrian reconnaissance identified no historic or pre -contact era cultural resources, or indications that any might be present. Vegetation on site was significant, but erosion and animal trails provided some visibility of mineral soil. The steep creek banks do not contaiin significant natural benches or flat areas that would provide likely locations for pre -contact use. The armored banks indicate mechanical excavation has probably already occurred, widening the creek channel. Most of the excavation required to move the culvert will occur on steep slopes of road fill placed during construction of the original culvert. It is unlikely that buried cultural deposits are present within the area likely to be disturbed by the culvert replacement. The culvert replacement project is deemed to have no effect on historic properties. No further work is recommended. Photo 1: Northeast side of the culvert showing armoring. ARCHAEOLOGICAL INVESTIGATION FOR CI F TUKWILA 42ND AVENUE S CULVERT REPLACEMENT Photo 2: southeast side of the culvert showing slope and armoring. Cited References AMEC (2010) Burien to Renton RapidRide—F Line Project: Historical, Archaeological, and Cultural Resources Discipline Report. Prepared for King County Metro Transit. • TECHNICAL MEMORANDUM CH2MHILL® Wetland and Jurisdictional Ditch Assessment for the Gilliam Creek Culvert Replacement at 42nd Avenue S PREPARED FOR: COPY TO: City of Tukwila Roger Mason/CH2M HILL PREPARED BY: Erin Thatcher/CH2M HILL DATE: June 19, 2012 PROJECT NUMBER: 434540.AA.02.01 Purpose & Summary This memo documents the absence of wetlands and the presence of two ditches within the Gilliam Creek culvert replacement project area, which is part of the City of Tukwila's 40th —42nd Avenue South Phase III Project. The two ditches are along both sides of 42nd Avenue S and south of Gilliam Creek. Both ditches are potentially jurisdictional under the U.S. Army Corps of Engineers (USACE). Methods Reviews of aerial photography, National Wetlands Inventory, 1-foot topographic contour maps, and Tukwila's critical areas ordinance did not indicate the presence of wetlands in the project area. Soils are not mapped within the project area. On June 11, 2012, CH2M HILL field staff Hans Ehlert (a Professional Wetland Scientist ) and Erin Thatcher performed a site visit to identify wetlands according to the Routine Determination Method described in the USACE Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys, and Coast Region (USACE 2010). Effective March 14, 2011, the Washington State Department of Ecology (Ecology) directed that delineations be done according to the currently approved federal manual and supplements (WAC 173-22-035). CH2M HILL field staff surveyed the project area for wetlands within 100 feet of the Gilliam Creek 42nd Avenue S culvert in both directions (upstream and downstream). Roadside ditches along both sides of 42nd Avenue S and south of Gilliam Creek that were previously mapped on the project's topographic surveys were evaluated within the project vicinity, both of which drain to Gilliam Creek adjacent to the existing culvert. CH2M HILL field staff documented characteristics of both ditches, which are identified as Southwest Ditch and Southeast Ditch in Figure 1. The attached photos from the June 11, 2012 site visit are representative of the areas assessed for wetlands and both ditches. Results Wetlands No wetlands were observed on or within 100 feet of the proposed project site. Two sample points were documented on terraced areas adjacent to the flowing stream where hydrophytic vegetation was observed, and where wetlands would most likely be located. Neither of these sample points contained all three indicators (vegetation, soils, and hydrology) necessary for the area to be identified as a wetland. The characteristics of these sample points relevant to the wetland indicators are summarized below. WETLAND AND JURISDICTIONAL DITCH ASSESSMENT FuHTHE GILLIAM CREEK CULVERT REPLACEMENT AT 42ND AVENUE S- Upstream Sample Point This point was located on the sand bar on the right bank immediately upstream of the dilapidated dam structure. Vegetation. Vegetation at the upstream sample point met the hydrophytic vegetation criteria for wetlands. Dominant plants were reed canarygrass and creeping buttercup. Soils. No hydric soil indicators were observed. Soils at this sample point were brown loamy sand with no redoximorphic features. Hydrology. No indicators of wetland hydrology were observed. Downstream Sample Point This point was located on the right bank terrace downstream of 42nd Avenue S. Vegetation. Vegetation at the downstream sample point did not meet the hydrophytic vegetation criteria for wetlands. Dominant plants were wild geranium and big -leaf maple. Soils. No hydric soil indicators were observed. Soils at this sample point were dark brown (10YR 2/1) silt loam with no redoximorphic features. Hydrology. No indicators of wetland hydrology were observed. Soils were moist but not saturated, and no water table was observed. Ditches Southeast Ditch The Southeast Ditch conveys stormwater from a piped drainage system north for more than 380 feet along 42nd Avenue S and into Gilliam Creek just downstream of the culvert. At the time of the site visit, depth of flow was approximately 1 inch. The upper, gravel -lined section of the ditch was approximately 6 inches deep, 18 inches wide and more than 300 feet long. The lower, vegetated section of the ditch was approximately 18 inches deep, 4.5 feet wide and 88 feet long. Just before discharging into the creek, flow travels below the surface of approximately 30 feet of riprap. Plants along the vegetated section of the Southeast Ditch included lady fern, horsetail, European nightshade, creeping buttercup, reed canarygrass, Himalayan blackberry, English laurel, and American holly. Southwest Ditch The Southwest Ditch discharges storm flow from a piped drainage system from a 12-inch concrete pipe and a catch basin into Gilliam Creek just upstream of the 42nd Avenue S culvert. Stormwater from the 12-inch pipe flows for approximately 10 feet through a vegetated ditch, receives flow from the catch basin, and then after approximately 10 more feet cascades down over 16 feet of riprap to enter Gilliam Creek. Upstream of the riprap, the Southwest Ditch has some evidence of scour, and is approximately 20 feet long. Substrate is mostly large angular rock and some gravel was also present. At the time of the site visit, approximate depth of flow in the ditch was 1-3 inches. The ditch was approximately 12 inches deep and 24 inches wide. There was no visible flow coming from the catch basin during the site visit. Vegetation along the Southwest Ditch included European nightshade, creeping buttercup, reed canarygrass, Himalayan blackberry, and morning glory (field bindweed). Both the Southeast Ditch and Southwest Ditch are potentially jurisdictional under the USACE. References U.S. Army Corps of Engineers (USACE). 2010. Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys, and Coast Region. eds. J.S. Wakeley, R.W. Lichvar, and C.V. Noble. U.S. Army Engineer Research and Development Center, Environmental Laboratory, Vicksburg, MS. ERDC/EL TR-08-13. http://www.usace.army.mil/cecw/pages/reg_supp.aspx 0 25 SO SCALE N FEET SOUTHWEST DITCH GILLIAM CREEK SOUND TRANSIT LIGHT RAIL STRUCTURE ABOVE - { I • 1 -�;``\\ - - CATCHBASIN DISCHARGES TO- SOUTHWEST DITCH 12-INCH DIAMETER PIPE DISCHARGES TO SOUTHWEST DITCH SOUTHEAST DITCH SR-18 STRUCTURE ABOVE FIGURE 1 POTENTIAL JURISDICTIONAL DITCHES WITHIN THE PROJECT AREA 40TH -42ND AVE SOUTH _ PHASE III TUIMIILA, WA \ WETLAND AND JURISDICTIONAL DITCH ASSESSMENT F(n1 THE GILLIAM CREEK CULVERT REPLACEMENT AT 42ND AVENUE S- WETLAND AND JURISDICTIONAL. DITCH ASSESSMENT'THE GILLIAM CREEK CULVERT REPLACEMENT AT 42ND AVENUE Photo 1. Looking northwest at the location of the upstream sample point for the wetlands assessment (June 11, 2012). Gilliam Creek is on the right side of the photo (looking upstream). Photo 2. Looking west at the location of the upstream sample point for the wetlands assessment (June 11, 2012). WETLAND AND JURISDICTIONAL DITCH ASSESSMENT FON THE GILLIAM CREEK CULVERT REPLACEMENT AT 42ND AVENUE S Photo 3. Looking east at the location of the downstream sample point for the wetlands assessment (June 11, 2012). Gilliam Creek is on the left side of the photo (looking downstream). Photo 4. Looking west (downstream) from 42nd Avenue S. The location of the downstream sample point is on the vegetated terrace in the right side of the photo (June 11, 2012). WETLAND AND JURISDICTIONAL DITCH ASSESSMENT I-uR THE GILLIAM CREEK CULVERT REPLACEMENT AT 42ND AVENUE S Photo 5. Looking north (downstream) at the Southeast Ditch, from just south of the SR 518 bridge (June 11, 2012). Photo 6. Looking south (upstream) at the Southeast Ditch, from under the northern edge of the SR 518 bridge, at the transition point between the gravel -lined and vegetated sections of the ditch (June 11, 2012). WETLAND AND JURISDICTIONAL DITCH ASSESSMENT FUN THE GILLIAM CREEK CULVERT REPLACEMENT AT 42ND AVENUE S Photo 7. Looking north (downstream) at the Southeast Ditch, from the transition point between the gravel -lined and vegetated sections of the ditch (June 11, 2012). Photo 8. Looking upstream at the Southeast Ditch just after it leaves the roadway and flows into Gilliam Creek underneath the riprap (June 11, 2012). WETLAND AND JURISDICTIONAL DITCH ASSESSMENTMg THE GILLIAM CREEK CULVERT REPLACEMENT AT 42ND AVENUE S Photo 9. Looking south (upstream) at the Southwest Ditch as it cascades down approximately 16 feet of riprap toward Gilliam Creek, just upstream of the 42nc? Avenue S culvert (June 11, 2012). Photo 10. Looking north (downstream) at the Southwest Ditch near its origin from a 12-inch concrete pipe (June 11, 2012). WETLAND AND JURISDICTIONAL DITCH ARSFSSMENT FOR THE GILLIAM CREEK CULVERT REPLACEMENT AT 42ND AVENUE S' Photo 11. Looking north at the catch basin that discharges into the Southwest Ditch (June 11, 2012). Attachment A Wetland Determination Forms / \ l WETLAND DETERMINATION DATA FORM — Western Mountains, Valleys, and Coast Region f /i1(a Project/Site: 6/Lib/ k1'r- Ce 1e 47' City/County: le, y Applicant/Owner: Tim t (& _ Investigator(s): 1 , • �l 1Q,+ 1 I)S; %' j J •r Landform (hillsiope 4 ' etc.): Subregion (LRR): Soil Map Unit Name: \ M D State: W A Sampling Date: Sampling Point: Section, Township, Range: Slope (%): L- Datum: N(A Are climatic / hydrologic conditions on the site typical for this time of year? Yes No ✓ (If no explain in Remarks.) Are Vegetation , Soil or Hydrology significantly disturbed? Are Vegetation , Soil , or Hydrology naturally problematic? Local relief (concave, convex, none): C-01/1 ou - Lat: Are "Normal Circumstances" present? Yes ✓ No (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS — Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present? Hydric Soil Present? Wetland Hydrology Present? es Yes No Is the Sampled Area within a Wetland? Yes Remarks:5. e P4-/v/ o3ow2 owok V ( VEGETATION — Use scientific names of plants. Tree Stratum 1. S 2. 3. 5 tisjay., 41 4. Absolute (Plot size: _ ) % Cover Sapling/Shrub Stratum 1. 2. 3. 4. 5. (Plot size: 10' Siam) `1 n�, Herb Stratum (Plot size: (p GL , vt ) \' 1. La+ivti-r' 7 re-sc 60 1 2. ,Aw 3o y 3. ( _l___ 4. r iz /1 - x '-i". I_J1 5. 44 cC 6 ,I �.v -ccil —�_ N 7..5 n t rI' 8. 5 r� 7 Dominant Indicator Species? Status `-1 FACLl FAt- = Total Cover 6. 9. 10. 11. Woody Vine Stratum (Plot size: ) 1. Priv rev, l / 2. % Bare Ground in Herb Stratum = Total Cover b 6 = Total Cover tJ = Total Cover Long: NWI classification: Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: 3 (A) Total Number of Dominant Species Across All Strata: (B) Percent of Dominant Species o/ That Are OBL, FACW, or FAC: , s (NB) Prevalence Index worksheet: Total % Cover of: Multiply bv: OBL species x 1 = FACW species x 2 = FAC species x 3 = FACU species x 4 = UPL species x 5 = Column Totals: (A) Prevalence Index = B/A = (B) Hydrophytic Vegetation indicators: _ 1 - Rapid Test for Hydrophytic Vegetation _✓2 - Dominance Test is >50% _ 3 - Prevalence Index is 53.0' _ 4 - Morphological Adaptations' (Provide supporting data in Remarks or on a separate sheet) 5 - Wetland Non -Vascular Plants' _ Problematic Hydrophytic Vegetation' (Explain) 'Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. Hydrophytic Vegetation Present? Remarks: SOIL Sampling Point: this ea4j&. Profile Description: (Describe to the depth needed to document the indicator or confirm Depth Matrix Redox Features the absence of indicators.) Texture Remarks (inches) Color (moist) % Color (moist) % Type' Loc2 0 - ( f o'i x- i/ 1i — Ls, .M.y can! 50--( 6 C.11 'Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains. 2Location: PL=Pore Lining, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils3: _ Histosol (Al) _ Sandy Redox (S5) 2 cm Muck (A10) Histic Epipedon (A2) _ Stripped Matrix (S6) _ Red Parent Material (TF2) _ Black Histic (A3) _ Loamy Mucky Mineral (F1) (except MLRA 1) _ Very Shallow Dark Surface (TF12) _ Hydrogen Sulfide (A4) — Loamy Gleyed Matrix (F2) _ Other (Explain in Remarks) — Depleted Below Dark Surface (A11) Depleted Matrix (F3) Thick Dark Surface (Al2) ____ Redox Dark Surface (F6) 3lndicators of hydrophytic vegetation and _ Sandy Mucky Mineral (S1) _ Depleted Dark Surface (F7) wetland hydrology must be present, _ Sandy Gleyed Matrix (S4) _ Redox Depressions (F8) unless disturbed or problematic. Restrictive Layer (if present): Type: EYQ V(,t Hydric Soil Present? Yes No De th inches : �� p (' ) Remarks: 0 hi 6 i 4. St'l t i r c.. tt€` ; 01o, air v a1.... HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (minimum of one required: check all that apply) Surface Water (A1) _ High Water Table (A2) Saturation (A3) Water Marks (B1) Sediment Deposits (B2) _ Drift Deposits (B3) _ Algal Mat or Crust (B4) _ Iron Deposits (B5) Surface Soil Cracks (B6) _ Inundation Visible on Aerial Imagery (B7) _ Sparsely Vegetated Concave Surface (B8) _ Water -Stained Leaves (B9) (except MLRA 1, 2, 4A, and 4B) _ Salt Crust (B11) _ Aquatic Invertebrates (B13) _ Hydrogen Sulfide Odor (C1) Oxidized Rhizospheres along Living Roots (C3) Presence of Reduced Iron (C4) Recent Iron Reduction in Tiled Soils (C6) _ Stunted or Stressed Plants (Di) (LRR A) Other (Explain in Remarks) Secondary Indicators (2 or more required) Water -Stained Leaves (B9) (MLRA 1, 2, 4A, and 4B) _ Drainage Patterns (B10) _ Dry -Season Water Table (C2) _ Saturation Visible on Aerial Imagery (C9) — Geomorphic Position (D2) _ Shallow Aquitard (D3) _ FAC-Neutral Test (D5) _ Raised Ant Mounds (D6) (LRR A) _ Frost -Heave Hummocks (D7) Field Observations: Surface Water Present? Water Table Present? Saturation Present? (includes capillary fringe) Yes Yes Yes Depth (inches): Depth (inches): Depth (inches): Wetland Hydrology Present? Yes No Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: 0 lAct d\o1oc`i ieNdkdtc. -rs 5 66s er ve L, ; \ 1 WETLAND DETERMINAtioN DATA FORM — Western Mountains, Valleys, and Coast Region 61�, Project/Sit •Qin%i ►' C i7�^ j wi'� q ti O City/County: ki"`16 Sampling Date: 6///// Z 111 State: Sampling Point: Applicant/Owner: 1 We -WI 1 ".. IIV/ DirlAhl51-ve.a. Investigator(s): 0 s eAteirrivws t E �� Section, Township, Range: Landform (hillsiope errac p_etc.): Local relief (concave, convex, none): C OVICAUt Subregion (LRR): �"[ Soil Map Unit Name: f i pe' Slope (%): L Lat: Long: Datum: NWI classification: L) `A Are climatic / hydrologic conditions on the site typical for this time of year? Yes No V (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology Are Vegetation , Soil , or Hydrology significantly disturbed? naturally problematic? Are "Normal Circumstances" present? Yes No (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS — Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present? Hydric Soil Present? Wetland Hydrology Present? Yes Yes Yes Is the Sampled Area within a Wetland? Remarks: " �,Q ei (a4`ce u , 441 la 6_r ien.9 eft vc 0000\4 oLvoirety., p,.,tv'. 1� U a v`` v�&, , 6\A) Stre&mA 1:k Culi VEGETATION — Use scientific names of plants. •�. ) Absolute Tree Stratum (Plot size: 3 O dIzZI,1 % Cover 1. g l 2. 3. 4. tuo- Saplin /Shrub Stratum (Plot size: 1.—"et. 3. 4. 5. Herb Stratum 1. Fv 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. d Dominant Indicator Species? Status 100 = Total Cover 1 y kL FA Gilt (Plot size: g4ra-rs. 1 1 t = Total Cover Woody V ne Stratum (Plot size: 1 ' ) 1. I"i�%!tet.-yifq Vatic, /c, 2- 2. E`ill J / = Total Cover = Total Cover Bare Ground in Herb Stratum Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: Total Number of Dominant (A) Species Across All Strata: (B) Percent of Dominant Species That Are OBL, FACW, or FAC: (A/B) Prevalence Index worksheet: Total % Cover of: Multiply by: OBL species x 1 = FACW species x 2 = FAC species 5'O x 3 = 1,c-0 FACU species 13 0 x 4 = 6 z0 UP species x 5 = Column Totals: l a (A) f (B) Prevalence Index = B/A = 3. ?" Hydrophytic Vegetation Indicators: 1 - Rapid Test for Hydrophytic Vegetation 2 - Dominance Test is >50% _ 3 - Prevalence Index is 53.0' _ 4 - Morphological Adaptations' (Provide supporting data in Remarks or on a separate sheet) _ 5 - Wetland Non -Vascular Plants' _ Problematic Hydrophytic Vegetation' (Explain) 'Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. Hydrophytic Vegetation Present? Yes Remarks: SOIL Sampling Point: 141Ii$tr11-44 Profile Description: (Describe to the depth needed to document the indicator or confirm Depth Matrix Redox Features the absence of indicators.) Texture Remarks (inches) Color (moist) % Color (moist) % Type' Loc2 t5— 2 /Dy!L 21) 5 (f /oaf,,, ,,.,rp Z`' L re.A/4 4.66e .f'S 'Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains. 2Location: PL=Pore Lining, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils3: _ Histosol (Al) _ Sandy Redox (S5) 2 cm Muck (A10) _ Histic Epipedon (A2) _ Stripped Matrix (S6) Red Parent Material (TF2) _ Black Histic (A3) — Loamy Mucky Mineral (F1) (except MLRA 1) _ Very Shallow Dark Surface (TF12) — Hydrogen Sulfide (A4) _ Loamy Gleyed Matrix (F2) Other (Explain in Remarks) Depleted Below Dark Surface (A11) Depleted Matrix (F3) — Thick Dark Surface (Al2) _ Redox Dark Surface (F6) 3lndicators of hydrophytic vegetation and Sandy Mucky Mineral (S1) _ Depleted Dark Surface (F7) wetland hydrology must be present, _ Sandy Gleyed Matrix (S4) _ Redox Depressions (F8) unless disturbed or problematic. Restrictive Layer (if present): Type: qt & {,L, ,. Hydric Soil Present? Yes No Depth (inches): 2,41 Z Remarks: NO 1,1\x i G so' I Ii Loc= t�5 bl se v f., HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (minimum of one required; check all that apply) _ Surface Water (Al) _ High Water Table (A2) _ Saturation (A3) _ Water Marks (B1) a Sediment Deposits (B2) _ Drift Deposits (B3) _ Algal Mat or Crust (B4) _ Iron Deposits (B5) _ Surface Soil Cracks (B6) _ Inundation Visible on Aerial Imagery (B7) _ Sparsely Vegetated Concave Surface (B8) _ Water -Stained Leaves (B9) (except MLRA 1, 2, 4A, and 4B) Salt Crust (B11) Aquatic Invertebrates (B13) Hydrogen Sulfide Odor (C1) _ Oxidized Rhizospheres along Living Roots (C3) _ Presence of Reduced Iron (C4) — Recent Iron Reduction in Tilled Soils (C6) _ Stunted or Stressed Plants (D1) (LRR A) ^ Other (Explain in Remarks) Secondary Indicators (2 or more required) Water -Stained Leaves (B9) (MLRA 1, 2, 4A, and 4B) Drainage Patterns (B10) Dry -Season Water Table (C2) Saturation Visible on Aerial Imagery (C9) _ Geomorphic Position (D2) _ Shallow Aquitard (D3) FAC-Neutral Test (D5) Raised Ant Mounds (D6) (LRR A) _ Frost -Heave Hummocks (D7) Field Observations: Surface Water Present? Water Table Present? Saturation Present? (includes capillary fringe) Yes Yes Yes Depth (inches): Depth (inches): Depth (inches): Wetland Hydrology Present? Yes No Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: Nb dYd Oc y CldefS 065 turves. Xf,5f7E TECHNICAL MEMORANDUM CH2M HILLe Wetland and Jurisdictional Ditch Assessment for the Gilliam Creek Culvert Replacement at 42nd Avenue S PREPARED FOR: COPY TO: City of Tukwila Roger Mason/CH2M HILL PREPARED BY: Erin Thatcher/CH2M HILL DATE: June 19, 2012 PROJECT NUMBER: 434540.AA.02.01 Purpose & Summary This memo documents the absence of wetlands and the presence of two ditches within the Gilliam Creek culvert replacement project area, which is part of the City of Tukwila's 40th — 42nd Avenue South Phase III Project. The two ditches are along both sides of 42nd Avenue S and south of Gilliam Creek. Both ditches are potentially jurisdictional under the U.S. Army Corps of Engineers (USACE). Methods Reviews of aerial photography, National Wetlands Inventory, 1-foot topographic contour maps, and Tukwila's critical areas ordinance did not indicate the presence of wetlands in the project area. Soils are not mapped within the project area. On June 11, 2012, CH2M HILL field staff Hans Ehlert (a Professional Wetland Scientist ) and Erin Thatcher performed a site visit to identify wetlands according to the Routine Determination Method described in the USACE Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys, and Coast Region (USACE 2010). Effective March 14, 2011, the Washington State Department of Ecology (Ecology) directed that delineations be done according to the currently approved federal manual and supplements (WAC 173-22-035). CH2M HILL field staff surveyed the project area for wetlands within 100 feet of the Gilliam Creek 42nd Avenue S culvert in both directions (upstream and downstream). Roadside ditches along both sides of 42nd Avenue S and south of Gilliam Creek that were previously mapped on the project's topographic surveys were evaluated within the project vicinity, both of which drain to Gilliam Creek adjacent to the existing culvert. CH2M HILL field staff documented characteristics of both ditches, which are identified as Southwest Ditch and Southeast Ditch in Figure 1. The attached photos from the June 11, 2012 site visit are representative of the areas assessed for wetlands and both ditches. Results Wetlands No wetlands were observed on or within 100 feet of the proposed project site. Two sample points were documented on terraced areas adjacent to the flowing stream where hydrophytic vegetation was observed, and where wetlands would most likely be located. Neither of these sample points contained all three indicators (vegetation, soils, and hydrology) necessary for the area to be identified as a wetland. The characteristics of these sample points relevant to the wetland indicators are summarized below. Aierx-7A WETLAND AND JURISDICTIONAL DITCH ASSESSMENT FOR THE GILLIAM CREEK CULVERT REPLACEMENT AT 42ND AVENUE S Upstream Sample Point This point was located on the sand bar on the right bank immediately upstream of the dilapidated dam structure. Vegetation. Vegetation at the upstream sample point met the hydrophytic vegetation criteria for wetlands. Dominant plants were reed canarygrass and creeping buttercup. Soils. No hydric soil indicators were observed. Soils at this sample point were brown loamy sand with no redoximorphic features. Hydrology. No indicators of wetland hydrology were observed. Downstream Sample Point This point was located on the right bank terrace downstream of 42nd Avenue S. Vegetation. Vegetation at the downstream sample point did not meet the hydrophytic vegetation criteria for wetlands. Dominant plants were wild geranium and big -leaf maple. Soils. No hydric soil indicators were observed. Soils at this sample point were dark brown (10YR 2/1) silt loam with no redoximorphic features. Hydrology. No indicators of wetland hydrology were observed. Soils were moist but not saturated, and no water table was observed. Ditches Southeast Ditch The Southeast Ditch conveys stormwater from a piped drainage system north for more than 380 feet along 42nd Avenue S and into Gilliam Creek just downstream of the culvert. At the time of the site visit, depth of flow was approximately 1 inch. The upper, gravel -lined section of the ditch was approximately 6 inches deep, 18 inches wide and more than 300 feet long. The lower, vegetated section of the ditch was approximately 18 inches deep, 4.5 feet wide and 88 feet long. Just before discharging into the creek, flow travels below the surface of approximately 30 feet of riprap. Plants along the vegetated section of the Southeast Ditch included lady fern, horsetail, European nightshade, creeping buttercup, reed canarygrass, Himalayan blackberry, English laurel, and American holly. Southwest Ditch The Southwest Ditch discharges storm flow from a piped drainage system from a 12-inch concrete pipe and a catch basin into Gilliam Creek just upstream of the 42nd Avenue S culvert. Stormwater from the 12-inch pipe flows for approximately 10 feet through a vegetated ditch, receives flow from the catch basin, and then after approximately 10 more feet cascades down over 16 feet of riprap to enter Gilliam Creek. Upstream of the riprap, the Southwest Ditch has some evidence of scour, and is approximately 20 feet long. Substrate is mostly large angular rock and some gravel was also present. At the time of the site visit, approximate depth of flow in the ditch was 1-3 inches. The ditch was approximately 12 inches deep and 24 inches wide. There was no visible flow coming from the catch basin during the site visit. Vegetation along the Southwest Ditch included European nightshade, creeping buttercup, reed canarygrass, Himalayan blackberry, and morning glory (field bindweed). Both the Southeast Ditch and Southwest Ditch are potentially jurisdictional under the USACE. References U.S. Army Corps of Engineers (USACE). 2010. Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys, and Coast Region. eds. J.S. Wakeley, R.W. Lichvar, and C.V. Noble. U.S. Army Engineer Research and Development Center, Environmental Laboratory, Vicksburg, MS. ERDC/EL TR-08-13. http://www.usace.army.mil/cecw/pages/reg_supp.aspx 44, r • j, SOUND TRANSIT LIGHT RAIL r, STRUCTURE ABOVE- CATCHBASIN DISCHARGES TO SOUTHWEST DITCH - 12-INCH DIAMETER PIPE DISCHARGES TO SOUTHWEST DITCH SOUTHEAST ' DITCH -- SR-18 STRUCTURE ABOVE FIGURE 1 POTENTIAL JURISDICTIONAL DITCHES WITHIN THE PROJECT AREA 40TH -42ND AVE SOUTH _ PHASE III TUKVIIILA, WA i WETLAND AND JURISDICTIONAL DITCH ASSESSMENT FOR THE GILLIAM CREEK CULVERT REPLACEMENT AT 42ND AVENUE S i `�. WETLAND AND JURISDICTIONAL DITCH ASSESSMENT FOR THE GILLIAM CREEK CULVERT REPLACEMENT AT 42ND AVENUE S Photo 1. Looking northwest at the location of the upstream sample point for the wetlands assessment (June 11, 2012). Gilliam Creek is on the right side of the photo (looking upstream). Photo 2. Looking west at the location of the upstream sample point for the wetlands assessment (June 11, 2012). WETLAND AND JURISDICTIONAL DITCH ASSESSMENT FOR THE GILLIAM CREEK CULVERT REPLACEMENT AT 42ND AVENUE S Photo 3. Looking east at the location of the downstream sample point for the wetlands assessment (June 11, 2012). Gilliam Creek is on the left side of the photo (looking downstream). Photo 4. Looking west (downstream) from 42nd Avenue S. The location of the downstream sample point is on the vegetated terrace in the right side of the photo (June 11, 2012). WETLAND AND JURISDICTIONAL DITCH ASSESSMENT FOR THE GILLIAM CREEK CULVERT REPLACEMENT AT 42ND AVENUE S Photo 5. Looking north (downstream) at the Southeast Ditch, from just south of the SR 518 bridge (June 11, 2012). Photo 6. Looking south (upstream) at the Southeast Ditch, from under the northern edge of the SR 518 bridge, at the transition point between the gravel -lined and vegetated sections of the ditch (June 11, 2012). WETLAND AND JURISDICTIONAL DITCH ASSESSMENT FOR THE GILLIAM CREEK CULVERT REPLACEMENT AT 42ND AVENUE S Photo 7. Looking north (downstream) at the Southeast Ditch, from the transition point between the gravel -lined and vegetated sections of the ditch (June 11, 2012). Photo 8. Looking upstream at the Southeast Ditch just after it leaves the roadway and flows into Gilliam Creek underneath the riprap (June 11, 2012). WETLAND AND JURISDICTIONAL DITCH ASSESSMENT FOR THE GILLIAM CREEK CULVERT REPLACEMENT AT 42ND AVENUE S Photo 9. Looking south (upstream) at the Southwest Ditch as it cascades down approximately 16 feet of riprap toward Gilliam Creek, just upstream of the 42nd Avenue S culvert (June 11, 2012). Photo 10. Looking north (downstream) at the Southwest Ditch near its origin from a 12-inch concrete pipe (June 11, 2012). WETLAND AND JURISDICTIONAL DITCH ASSESSMENT FOR THE GILLIAM CREEK CULVERT REPLACEMENT AT 42ND AVENUE S Photo 11. Looking north at the catch basin that discharges into the Southwest Ditch (June 11, 2012). Attachment A Wetland Determination Forms Project/Site: 6/Gil, /itTh CP./et-lc- Applicant/Owner. Investigator(s): 14 • Landform (hillslopel Subregion (LRR): Soil Map Unit Name: \ P Q' — Are climatic / hydrologic conditions on the site typical for this time of year? Yes Are Vegetation , Soil , or Hydrology Are Vegetation , Soil , or Hydrology WETLAND DETERMINATION DATA FORM —Western Mountains, Valleys, and Coast Region 61,I((2 City/County: le, D1 kid- was - h' 11'.a tCiti Section, Township, Range: errace etc.): A Sampling Date: State: \N A Sampling Point: Local relief (concave, convex, none): C01/1 C4VL Slope (%): `— Lat: Long: Datum: significantly disturbed? naturally problematic? NWI classification: It A No ✓ (If no, explain in Remarks.) Are "Normal Circumstances" present? Yes ✓ No (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS — Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present? Hydric Soil Present? Wetland Hydrology Present? es Yes 1 No Is the Sampled Area within a Wetland? Yes Remarks: - 547,0 ops7 ; OJobvA ox)Q'v' t. Y )0A q • , VEGETATION — Use scientific names of plants. Tree Stratum (Plot size: 1 74b1-6.Alt.,.L 2. 3.t13-JIIy 4. Saplind/Shrub Stratum 1. 2. 3. 4. 5. (Plot size: 10I Ckt ) `r Herb Stratum (Plot size: SD vC t ) 1. pzed ,,awes7 4I '3 ' • ..J-i-1-1‘C--,)/) lztt 4. Id_)G 5. 6. 7. 8. 9. 10. 11. 4-L K 6 , ,AA-e-ce 5- APevettc le-"n Absolute Dominant Indicator % Cover Species? Status FAc.0 Woody Vine Stratum (Plot size: ) 1. F^+t✓v$ as re+.Fe.rtJ 2. = Total Cover % Bare Ground in Herb Stratum = Total Cover 6U 1 Ft vJ 3� y} Fi' �— tJ -r G (7.0 = Total Cover N = Total Cover Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: (A) Total Number of Dominant Species Across All Strata: (B) Percent of Dominant Species That Are OBL, FACW, or FAC: 1-5o s (NB) Prevalence Index worksheet: Total % Cover of: Multiply by: OBL species x 1 = FACW species x 2 = FAC species x 3 = FACU species x 4 = UPL species x 5 = Column Totals: (A) (B) Prevalence Index = B/A = Hydrophytic Vegetation Indicators: 1 - Rapid Test for Hydrophytic Vegetation ✓2 - Dominance Test is >50% _ 3 - Prevalence Index is 53.0' 4 - Morphological Adaptations' (Provide supporting data in Remarks or on a separate sheet) 5 - Wetland Non -Vascular Plants' Problematic Hydrophytic Vegetation' (Explain) 'Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. Hydrophytic Vegetation Present? Remarks: SOIL Sampling Point: -1 r Profile Description: Depth (inches) (Describe to the depth needed to document the indicator or confirm Matrix Redox Features the absence of indicators.) Texture Remarks Color (moist) % Color (moist) % Type' Loc2 ` tO - 6(✓sil j l L _ to Si.147( Se-( 6 ii 61 ` ,] Pe2L'f"i -3.- 'Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains. 2Location: PL=Pore Lining M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils3: _ _ Histosol (A1) _ Sandy Redox (S5) 2 cm Muck (A10) _ Histic Epipedon (A2) _ Stripped Matrix (S6) _ Red Parent Material (TF2) _ Black Histic (A3) _ Loamy Mucky Mineral (F1) (except MLRA 1) Very Shallow Dark Surface (TF12) Hydrogen Sulfide (A4) _ Loamy Gleyed Matrix (F2) Other (Explain in Remarks) _ Depleted Below Dark Surface (A11) Depleted Matrix (F3) _ Thick Dark Surface (Al2) _ Redox Dark Surface (F6) 3lndicators of hydrophytic vegetation and _ Sandy Mucky Mineral (S1) _ Depleted Dark Surface (F7) wetland hydrology must be present, Sandy Gleyed Matrix (S4) _ Redox Depressions (F8) unless disturbed or problematic. Restrictive Layer (if present): Type: er41/Gi Hydric Soil Present? Yes No Depth (inches): II P ( ) Remarks: ,, IVb t h1bx cr 99t t i C t`s o air velk— a HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (minimum of one required: check all that apply) Secondary Indicators (2 or more required) Surface Water (A1) _ Water -Stained Leaves (B9) (except _ Water -Stained Leaves (B9) (MLRA 1, 2, _ High Water Table (A2) MLRA 1, 2, 4A, and 4B) 4A, and 4B) _ Saturation (A3) _ Salt Crust (B11) Drainage Patterns (B10) Water Marks (B1) _ Aquatic Invertebrates (B13) _ Dry -Season Water Table (C2) Sediment Deposits (B2) _ Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9) _ Drift Deposits (B3) _ Oxidized Rhizospheres along Living Roots (C3) _ Geomorphic Position (D2) _ Algal Mat or Crust (B4) _ Presence of Reduced Iron (C4) — Shallow Aquitard (D3) _ Iron Deposits (B5) _ Recent Iron Reduction in Tilled Soils (C6) _ FAC-Neutral Test (D5) _ Surface Soil Cracks (B6) _ Stunted or Stressed Plants (D1) (LRR A) _ Raised Ant Mounds (D6) (LRR A) Inundation Visible on Aerial Imagery (B7) _ Other (Explain in Remarks) _ Frost -Heave Hummocks (D7) Sparsely Vegetated Concave Surface (B8) Field Observations: Surface Water Present? Yes No Depth (inches): , Wetland Hydrology Present? Yes No Water Table Present? Yes ® Depth (inches): Saturation Present? Yes Depth (inches): (includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: i0 149 a m t 0 1 .l r�d4-.i.C, '-1s{5 66S es,- VC..4 , J Applicant/Owner: vle- l71 �%� Dy'W►iStY2d `!!, Investigator(s): t C i 3 b' S dk, -�_k -c , etc.): Local relief (concave, convex, none): C oV (AVG � Subregion (LRR): A Soil Map Unit Name: WitYVV41-P p€.4. Are dimatic / hydrologic conditions on the site typical for this time of year? Yes Are Vegetation Soil , or Hydrology significantly disturbed? Are Vegetation , Soil , or Hydrology naturally problematic? Landform (hillslope WETLAND DETERMINATION DATA FORM - Western Mountains, Valleys, and Coast Region op Project/Site: �Q'�^� "' k') " f 41 City/County: 6 Sampling Date: 6///1 2- State: Sampling Point: Section, Township, Range: Slope (%): L" Lat: Long: Datum: NWI classification: `A No V (If no, explain in Remarks.) Are "Normal Circumstances" present? Yes No (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS - Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present? Hydric Soil Present? Wetland Hydrology Present? Yes Yes Yes Is the Sampled Area within a Wetland? Yes Remarks: ??),4e,Sc.S2 t ra4\t-e tv,tv-Ic 6.1 KJ f & I�j - t Y" A-v&.k- . -96 ,A)Asi-wc w4. o� CA. v2, ' VEGETATION - Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: 3 0 d bx % Coyer Species? Status 2. C.,6 t 3. 4. 10° Sapling/Shrub Stratum (Plot size: 1. tp" /� 2. b )P� teK. �— FACAA - 3. J 4. 5. = Total Cover Herb Stratu (Plot size: 06 4 . 1. �vw 2. i� r- C rt". 3. C W(rJ 1 4. q %JCtirLe-1 il�eL 6. CA t' ti lj 7. 8. 9. 10. 11. Wood Vine Stratum (Plot size: ) 1.>,,, a ay at F is ) 7/ = Total Cover IO N) IJ % Bare Ground in Herb Stratum = Total Cover 2- = Total Cover Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: Total Number of Dominant Species Across At Strata: Percent of Dominant Species That Are OBL, FACW, or FAC: 1 (A) 3 (B) r.53' (, (NB) Prevalence Index worksheet: Total % Cover of: OBL species FACW species FAC species 5© FACU species 1 3 t x 4 UPL species x 5 Column Totals: 1 g @? (A) Multiply by: x 1 = x 2 = x3= Prevalence Index = B/A = rIcID 6 3. ��— (B) Hydrophytic Vegetation Indicators: _ 1 - Rapid Test for Hydrophytic Vegetation _ 2 - Dominance Test is >50% 3 - Prevalence Index is 53.01 _ 4 - Morphological Adaptations' (Provide supporting data in Remarks or on a separate sheet) _ 5 - Wetland Non -Vascular Plants' _ Problematic Hydrophytic Vegetation' (Explain) 'Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. Hydrophytic Vegetation Present? Yes Remarks: SOIL Sampling Point: Jt0 vsrr • Profile Description: (Describe to the depth needed to document the indicator or confirm Depth Matrix Redox Features the absence of indicators.) Texture Remarks (inches) Color (moist) % Color (moist) % TYpe' Loc2 o- 2 ray!.2/1 5If tom 6) Z'y r,,rt G ra-A-( et 6ct $ S 'Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains. 2Location: PL=Pore Lining, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils3: — Histosol (A1) _ Sandy Redox (S5) ` 2 cm Muck (A10) Histic Epipedon (A2) _ Stripped Matrix (S6) _ Red Parent Material (TF2) _ Black Histic (A3) _ Loamy Mucky Mineral (F1) (except MLRA 1) _ Very Shallow Dark Surface (TF12) _ Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) _ Other (Explain in Remarks) Depleted Below Dark Surface (A11) Depleted Matrix (F3) — Thick Dark Surface (Al2) _ Redox Dark Surface (F6) 3lndicators of hydrophytic vegetation and Sandy Mucky Mineral (S1) _ Depleted Dark Surface (F7) wetland hydrology must be present, Sandy Gleyed Matrix (S4) _ Redox Depressions (F8) unless disturbed or problematic. Restrictive Layer (if present): Type: ' rti.V Hydric Soil Present? Yes No Depth (inches. t P ( ) Remarks: - N0 ley 0 ► c so, I it L vs O �e, v4!4 , HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (minimum of one required: check all that apply) Secondary Indicators (2 or more required) Surface Water (Al) _ Water -Stained Leaves (B9) (except — Water -Stained Leaves (B9) (MLRA 1, 2, High Water Table (A2) MLRA 1, 2, 4A, and 4B) 4A, and 4B) _ Saturation (A3) _ Salt Crust (B11) _ Drainage Patterns (B10) _ Water Marks (B1) _ Aquatic Invertebrates (B13) _ Dry -Season Water Table (C2) _ Sediment Deposits (B2) Hydrogen Sulfide Odor (C1) _ Saturation Visible on Aerial Imagery (C9) _ Drift Deposits (B3) Oxidized Rhizospheres along Living Roots (C3) _ Geomorphic Position (D2) Algal Mat or Crust (B4) _ Presence of Reduced Iron (C4) _ Shallow Aquitard (D3) Iron Deposits (B5) _ Recent Iron Reduction in Tilled Soils (C6) _ FAC-Neutral Test (D5) Surface Soil Cracks (B6) _ Stunted or Stressed Plants (D1) (LRR A) _ Raised Ant Mounds (D6) (LRR A) _ Inundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) _ Frost -Heave Hummocks (D7) Sparsely Vegetated Concave Surface (B8) Field Observations: Surface Water Table Saturation (includes � Water Present? Yes �j�C.t Depth (inches): Wetland Hydrology Present? Yes No Present? Yes Depth (inches): Present? Yes I D Depth (inches): capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: No hN drd cry,/ 1 rvij cedors a Exhibit F Aerial of Sensitive area South of SR 518 ,.„ / . • • '•• • • ' = (134; f 0 V+1 J x 1- 2 • ♦ ♦ ♦ ♦ • ♦ • ♦ • L x t 63+00 64+00 65+00 1 47X75(7)(7XXIC1.XXXX'x ((X•KXXrsx1X xXXX'XX•XXX'> 9 BT 9 RR 6 RI 9 PO exh(6-f- - 3 BT' 3 RR 2 RI 42ND AVE S. o00 •XXx:x•X•XxYXXXX( 6 BT 6 RR 4 RI 3 PO 3 BT 2 RR OSea 2( 66+00 z LANDSCAPE NOTES ADJUST SHRUBS SO THAT NO SHRUB tim CENTER IS CLOSER THAN 3' TO SIDEWALK/DRIVEWAY RETURN, TYP. LEGEND • SEED/SOD MIX B & TOPSOIL 0 SHRUB & BARK MULCH 414 2" DEPTH CRUSHED SURFACING TOP COURSE - HVF — TREE PROTECTION FENCING (HVF) NUMBER OF PLANTS "-32 BT PLANT SPECIES (SEE SHEET LA-6) NOTES: 1. SEE DEMOLITION AND EROSION •°"" CONTROL SHEETS FOR TREE REMOVALS. 2. FOR TREE PROTECTION DETAIL SEE SHEET LA-7 3. ALTERNATE SHRUBS IN GROUPS OF THREE IN SEQUENCE LISTED J I- 6 BT i ( . 2 3 RR 3 RI ♦ 3 PO ♦ ♦ • ♦ • r♦. Aft+ PstRAWEWARS C izitair6." I/4'OOt/ r 0 20 40 SCALE IN FEET PUBLIC WORKS DEPT. - EN G I N EE R I N G-STR EETS-WATER-SEWER- PARKS- B U I LOI N G- by ar ACK CA LC% Po 9 EVM cMux: CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III LANDSCAPE PLAN 84- 89 Nano LA-4 l scale 1'=20' TECHNICAL MEMORANDUM CH2MHILL. City of Tukwila Fish Passage Barrier Inventory PREPARED FOR: Ryan Larson, City of Tukwila Surface Water Management PREPARED BY: Erin Thatcher/CH2M HILL Randy Whitman/CH2M HILL REVIEWED BY: Amy Carlson/CH2M HILL DATE: November 22, 2011 PROJECT NUMBER: 412954.TT.02 Introduction This memo documents the fish passage barrier inventory developed for the City of Tukwila (the City). The purpose of the inventory is to provide a baseline of information that will inform future planning efforts and prioritization of capital and programmatic improvements related to fish -bearing streams within the City's jurisdiction. The inventory includes information gathered from the Washington Department of Fish and Wildlife (WDFW) and a windshield survey completed for the City's 2010 Surface Water Comprehensive Plan. The inventory encompasses the four main fish -bearing streams in the City's jurisdiction: Riverton Creek, Southgate Creek, Gilliam Creek, and Johnson Creek. Each of these streams is identified by WDFW as having the potential to support anadromous fish such as coho salmon (Oncorhynchus kisutch). The WDFW fish passage barrier inventory does not currently identify any barriers on the Duwamish River, and the inventory in this memo does not include the Duwamish River. Determining a culvert's (or other structure's) fish passability according to accepted standards involves a detailed engineering analysis (developed by WDFW) beyond the scope of this effort. For the areas that were not covered by WDFW's existing inventory, a best professional judgment of fish passability was made based on information gathered during the windshield survey. The windshield survey was conducted by a CH2M HILL professional fish biologist and an assistant scientist on February 3 and 4, 2011. Method The steps outlined below summarize the method used to develop the fish passage barrier inventory. 1. Gathered existing information and data from WDFW and other sources (listed below) 2. Created a basemap from the existing data, which included roads, stream channels, WDFW-mapped fish presence, WDFW fish barrier inventory, and City -mapped culverts CITY OF TUKWILA FISH PASSAGE BARRIER INVENTORY 3. Identified information gaps from the basemap and existing information (e.g., road crossings without a corresponding WDFW fish passage feature) 4. Completed a windshield survey to fill information gaps, determine fish passability of areas uncovered by WDFW's inventory, and assess general aquatic habitat conditions for the 2010 Surface Water Comprehensive Plan 5. Created a new GIS database file of fish passage barriers incorporating WDFW's existing inventory and new information from the windshield survey Sources of existing information on fish passage and habitat that were evaluated during development of the inventory include: • WDFW Fish Passage Barrier Inventory GIS data (WDFW, 2010) • WSDOT Fish Passage Inventory (WSDOT and WDFW, 2010) • WRIA 9 Limiting Factors Analysis (King County and Washington State Conservation Commission, 2000) • Existing knowledge of City of Tukwila staff (Personal communications) • Tukwila's 2003 Comprehensive Surface Water Management Plan (CH2M HILL, 2003) • Gilliam Creek Basin Plan (Herrera, 2001) • Riverton Creek Basin Plan (Entranc, 1997) • Fostoria (Southgate) Creek Basin Plan (Herrera, 1996) • Johnson Creek Restoration Plan (Cedarock Consultants, 2010) • Tukwila South Project Final Environmental Impact Statement • King County's WRIA 9 Salmon Habitat Plan • Wild Fish Conservancy (formerly Washington Trout) website: http: / iwildfishconservancy.org/ Of these, the primary sources of information used to create the inventory are the WDFW fish passage barrier inventory and the February 2011 windshield survey. The WDFW fish passage barrier data are collected under the auspices of the Fish Passage Barrier and Surface Water Diversion Screening Assessment and Prioritization Manual (WDFW, 2009). The data do not represent a complete and comprehensive inventory of all waters. Numerous fish passage inventories are being conducted across the state and the data set is updated when new information becomes available. Table 1 summarizes key information from the fish passage inventory GIS database. Road crossings and other fish passage features were not always covered by the WDFW inventory or accessible in the field during the windshield survey. Remaining information gaps are noted by the entry "Unknown" both in the GIS database and in Table 1. Figures 1, 2, 3, 4, and 5 on the following pages show the fish passage barrier inventory for Riverton Creek, Southgate Creek, Lower Gilliam Creek, Upper Gilliam Creek, and Johnson Creek, respectively. Attachment A to this memo provides photographs of the fish passage features observed during the February 2011 windshield survey; not all fish passage features were accessible for photographs. Data Source a) a m O Feature Type a) N O a 7 a) N 0 Q. H. in C -c 1 a) 3 3' o 3 • 3• . c' cI m. 3 O c 3 a) , a) o) O ' ! a� O c Y Y' ..0 c • -NC Y• N m a Y c. C C N Y, C CIO Z• 'D DID ',ZID• ID,0 C0 L. D'MIC JIZ'ZI0 JZ i J! J I J J J J J J J_ J_ J_ J , J J_ J_ LL LL LL lL LL LL LL N N N N N! N N La o'o oho o,0'o.r 2 2,2,= = 2 =:_ T U co O O N (NI 0 a) O z a) U co O O N 0 FO- , O O! O i 1 0 1 a)' TI • > I > I > I rT > >• U a a a U a a V (%) U, U U c+) C N N i O 0 1 N N N i N O Ocolm c0 70 a3 N • a3 co I ( O' O > >' > > >' E 717' 7' 7'7 m, = UU'U'U'U Artificial waterfall I � O R) ,� CiN c a) a'aIZ!Z'1— • , O • E', o'I E W 3 O ' O O ' a C' C C 3 U N i N 0 FE Z Z ' C' O CH2M HILL CH2M HILL c3 0 0 U D;U,U!U,D a a3 N a) v I C C f6 N C e'er O 0 N N ✓ i ' E. N N N c6 1 E C C C 79, a) d Z Z: Z (0F t j OC m a) I ! I E m U ▪ N N I N! 0) N 0) N N 0) N• ,f6 0 !._ > >>, >, >, > > >, > > > �. uE • 7 7 7 O V Q • ' U U! U i U U. U U U U U J Q S., °' -o v E a' i f0 . LC) C .c C co t C a• C 3 E N F co N SF O a• , ^, (n a w m a U. �' c .0 N I a) = .c c CI Z Fish ladder at low flows a) O J J I J i J' J' J. • J_ J_ ! J I J J ! —I_ ' _ ! _ _ ' _ _ •U'UUU UU'( a) ._T . « @ U U cA r r I IN- I- r,, O i 0 1 i O; O 014 M' M: M M, M i I NN C;N N N a) ! (0 ' C a)• d a) C f! a) t i c C' O c0 : O . f0 z a,a a.,z,z,; Data Source a 0I 8 00 7 0 0 L. r COCO 43 CO Feature Type a) ro N 0 a 1 a) .c O - 3'3:3 a) 0, 0: 0 C C. C C o C • C. C c c 00 2 0 0 0 0. 0 '' 0 c i c c ZOZZ z Z;Z:z > 0 0 J' J: J J J J J J J JJ J J J J J MMIMMIMM N N, N N N N N N 2 = 2 i 2 2. 2 2 O . 0 0 0 0 0 0 0 3 ' 0 C• O : 0 0 0 0 0 0,0 OHO r r! r 0 0 0' 0: 0 0 0' 0 M M M M M M M i N N N N; N N N! N C • N C C C C C C Z 0 O- Z Z Z Z Z, Z F > • >' > > > > >' > 0• •0! 0• 0, 0 0 0` 0' Z (7) a) E co a) 0) c 0 3 rn C 7 •0 a) 0) i� c: O c' c c' c c: a) c c c c c. c c c c 3; -0 S''. 3' 3! 3• 3 3 m: 3 3: 3 3 3 3 c 3 3 3 O :of o o: o 0 0) o. o 0 0 0 0 2: 0 0 0 c . c c c' c c c c c c c. c a c c c c' 0) c c c c m: c C. c c c c c c c 3 3 a' N a) a) a) a) a) a) C (6 C a) C ▪ .6 w .+ TO' w ' w C C .? C cn cn cn • U cn U U U U U o cn cn cn p a. D a I O D O o 0) m' to rnr-- rn'm 0) o)rn o 0)' o N- a) 0) 0)i 0) ' 0)•0•0) 0 0.0 0' 0 0,0 0 N 0 0 0 0 0 010 0,0 0 0 010 010 0 0' 0 r 0 N 0•0 0 0.0 N' N 0 N N I. N N N N: N N r N l0 N Q N O N M O In l0 010,0 •O r r W O 0 Q) r W r r N r 1- r r. r 0) OM O 0) 0) O) 0)•O) 0) O) 0) N 0) ' O) O i O i O To ▪ N a) M• I- I° • f0 01 Z • m 0 0 ti 0 r r 0) ' 0) N a) 2 (0 (0 a3 • , (6 f N ' f O O 0 0! 0 0 0 I6 , O a) O• a) a) a) a) a) a) a) rn a) ' a) a) a) a) a) ' a) ; a) a) a) : a) a) > : > > > > > .o > > > > ' > > > , > • > > E > > . E 7 7 3 7 : 7 7 •, 7 7 7 7' 7• 7 7 7' 7 7 CO 7 7 CO O 0 0' 0' 0 0 0 0 0 0 0 0 j 0 0 0 U: 0 O 0 0 Data Source Feature Type 0 CO CO 0 m V) N N a = y a) m rn v 0 0 a) (0 /) c T atea)) co uj E o, t) O J J , J J_ J_ N N ' N _ '_ _ 0 I0'0 (00 : ) i 0) C • Ni C To f0 i C a) a) aS O O a ,a:z • > )) E E' o y 7 (/) N N v .. a • y— v v N c • c 0 a) 3a (I) o) E Q •= L a) 7 CO ✓ e O 3 a) o co. a) @=O r a) - U ..c- C_ w Ya)a) 3 @ N N a) E • > a) • c J.t" C _ to N O a) (0 E 2 a 0) o U C 0) • -0N C u) CO (0 2 O a) • a) co .c 2 = 2 w as c0 a) ai iz C w N CO m v� .2 23 m 0,_=. V 7oasa)ci) y i0 v o-« — c,�NycU o a)mw�N a_ .0 _ Em c.oc 3U o ynv>�wU a•,76 C8vc t a) a) N '-a)c`oE Em t--O a)E 7 42 0) O c a) ,_ ... I a) E = 0 co _ i `i References Cedarock Consultants, Inc. 2010. Tukwila South Project Fisheries Mitigation Plan. June. CH2M HILL. 2003. City of Tukwila Comprehensive Surface Water Management Plan. Prepared by CH2M HILL, Inc. Prepared for the City of Tukwila. November. Entranco, Inc., et al. 1997. Riverton Creek Stormwater Qualihj Management Plan: Water Qualihj, Stream Habitat, and Flood Control. Prepared by Entranco Inc., Taylor Associates Inc., and Envirovision Inc. Prepared for the City of Tukwila. November. Herrera Environmental Consultants, Inc. 1996. Fostoria Basin: Stormwater Qualihj Management Plan. Prepared for the City of Tukwila. March. Herrera Environmental Consultants, Inc. 2001. Gilliam Creek Basin: Stormwater Management Plan. Prepared for the City of Tukwila. March. Howat. 2010. Personal communication (conversation with John Howat, City of Tukwila Public Works Department). Tukwila City Hall, Tukwila, WA. November 30. King County and Washington State Conservation Commission. 2000. Habitat Limiting Factors and Reconnaissance Assessment Report: Green/Duwamish and Central Puget Sound Watersheds. December. Washington Department of Fish and Wildlife (WDFW). 2009. Fish Passage and Surface Water Diversion Screening Assessment and Prioritization Manual. Washington Department of Fish and Wildlife. Olympia, Washington. WDFW. 2010. Fish Passage Barrier Inventory Geodatabase. Accessed via email by Brian Benson, WDFW Habitat Program, on January 14, 2011. Whiting. 2011. Personal communication (email correspondence with Sandra Whiting, City of Tukwila Department of Community Development). CH2M HILL, Bellevue, WA. January 27. WSDOT and WDFW. 2010. Progress Performance Report for WSDOT Fish Passage Barrier Inventory. May. WSDOT. 2007. SR 518 SeaTac Airport to 1-5/1-405 Interchange Widening Project: Culvert Mitigation. February. Attachment A Photographs nknown S 112nd St 50003 50009r; 50010 14674 14675 ti 21065 Survey limit 500051v�ttq.: 2 000 in ar;foot culvert 50006 50008 560231 ;;5 13Qth' Survey limit " 50020 This information is intended for planning purposes only. Additional information would be required to support design and construction. Figure 1. Riverton Creek Fish Passage Barrier Inventory N 0 250 500 1,000 1,500 ICCOFeet Legend Fish Passage Features - Culverts Fish Passage Features - Other Barrier Status Barrier Status N/A , Partial None ® Total Partial Stream Potential wEM Drainage Basins TntaI ■ Ti l4 A/IIM Rni inrian 0 20633 20534 ,.y..b_ •wvs.,. 7467s6.4. i 50019. 500 7, 50025/ 5nn2n_ ,, 50027)s 5nma 50029,• 50030 This information is intended for planning purposes only. Additional information would be required to support design and construction. Figure 2. Southgate Creek Fish Passage Barrier Inventory N 0 250 500 1,000 1,500 Feet Legend Fish Passage Features - Culverts Fish Passage Features - Other Barrier Status Barrier Status 00 N/A Q Partial • None A Total O Partial Stream • Potential I=1 Drainage Basins L.' This information is intended for planning purposes only. Additional information would be required to support design and construction. Figure 3. Lower Gilliam Creek Fish Passage Barrier Inventory N 0 250 500 1,000 1,500 Feet Legend Fish Passage Features - Culverts Fish Passage Features - Other Barrier Status Barrier Status N/A /\ Partial None A Total Partial Stream 0 Potential Q^ Drainage Basins 1111 Total ■ , Tukwila Room-Iary This information is intended for planning purposes only. Additional information would be required to support design and construction. Figure 4. Upper Gilliam Creek Fish Passage Barrier Inventory N 0 250 500 1,000 1,500 CC:INIFeet Legend Fish Passage Features - Culverts Fish Passage Features - Other Barrier Status Barrier Status (0 NIA J None (ce) Partial Potential • Total \ Partial r Total Stream ED Drainage Basins Tukwila Boundary This information is intended for planning purposes only. Additional information would be required to support design and construction. Figure 5. Johnson Creek Fish Passage Barrier Inventory N 0 250 500 1,000 1,500 Feet Legend Fish Passage Features - Culverts Fish Passage Features - Other Barrier Status Barrier Status H N/A / Partial None A Total Partial Stream C) Potential 1=1 Drainage Basins Total n Tukwila Boundary f 4 ATTACHMENT A: PHOTOGRAPHS Photo 1. East Fork Riverton Creek: view downstream from the outlet of the 2, 000-foot long pipe along East Marginal Way S (fish passage ID 50005, partial barrier). (Date: 2/4/2011) Photo 3. East Fork Riverton Creek: view of the privately -owned waterfall (fish passage ID 50007, total barrier) just upstream of the S 128th Street culvert (fish passage ID 50023, non - barrier). (Date: 2/4/2011) Photo 2. East Fork Riverton Creek: view upstream from the culvert under S 126th Street (fish passage ID 50006, non - barrier). (Date: 2/4/2011) Photo 4. West Fork Riverton Creek: view of log jam (fish passage ID 50022, partial barrier) in restored channel area. (Date: 2/4/2011) WBG031611103411SEAVATTA PHOTOS-FISHPASSAGEINVENTORY TUKWILASWCP V2 A-1 ATTACHMENT A: PHOTOGRAPHS Photo 5. West Fork Riverton Creek: view of the waterfall just Photo 6. West Fork Riverton Creek: view upstream from the upstream of the restored channel area (fish passage ID 20533, top of the large waterfall in Photo 5, toward fish passage ID total barrier). (Date: 2/4/2011) 20534 (total barrier). (Date: 2/4/2011) Photo 7. Southgate Creek: view of the outlet of the culvert under Interurban Avenue S (fish passage ID 50013, partial barrier). The fish ladderjust inside the culvert is considered a partial fish passage barrier because low flows did not appear sufficient to allow fish to jump over the weirs. (Date: 2/3/2011) Photo 9. Southgate Creek: view of pipe outlet into the wetland that conveys the main branch (fish passage ID 50015, partial barrier) just upstream of SR 599. (Date: 2/3/2011) Photo 8. Southgate Creek: view of inlet to City -owned culvert under S 132nd Street (fish passage ID 50015, partial barrier). There was no flow through the culvert due to sediment blockage at the time this photo was taken. (Date: 2/3/2011) Photo 10. East Fork Southgate Creek: view of the east end of the culvert under 44th Place S (fish passage ID 50016, non - barrier). Flow from the west fork was diverting into a pipe at S 133rd Street, instead of passing into the main channel, due to channel gradient and sediment blockage. (Date: 2/3/2011) ATTACHMENT A: PHOTOGRAPHS Photo 11. West Fork Southgate Creek: view of the inlet to the long culvert under S 133rd Street (fish passage ID 50021, total barrier). The steep gradient as well as the structures shown here and in Photo 12 combine to act as a total fish passage barrier. (Date: 2/3/2011) Photo 13. Gilliam Creek: view of the log at the inlet to WSDOT- owned culvert at the northbound 1-405 on -ramp (fish passage ID 14611, partial barrier). (Date: 2/3/2011) Photo 12. West Fork Southgate Creek: view of weir at the inlet to the long culvert under S 133rd Street (fish passage ID 50021, total barrier). The weir's height exceeds the fish jumping criteria by 0.10 foot, and the culvertjust downstream was considered too steep for fish, Habitat just upstream provides some suitable spawning gravel, possibly for resident trout. (Date: 2/3/2011) Photo 14. Gilliam Creek: view of the outlet of the WSDOT- owned culvert under the south shoulder of 1-405 (fish passage ID 40864, partial barrier). This 1,100-foot long culvert is identified as a partial fish passage barrier likely because of high discharge during high stream flows due to its length. (Date: 2/3/2011) ATTACHMENT A: PHOTOGRAPHS Photo 15. Upper Gilliam Creek: view downstream from the 42nd Avenue S culvert (fish passage ID 44990, total barrier). A view of the actual culvert was not possible due to physical constraints. (Date: 2/4/2011) Photo 16. Gilliam Creek: view of the presumed outlet of the culvert under the 1-5/1-405 interchange (fish passage ID 14737, total barrier). It was not clear from the available mapping whether this culvert conveys flow from upper Gilliam Creek, or from stormwater detention managed by WSDOT. (Date: 2/3/2011). Photo 17. Upper Gilliam Creek: view upstream from the City - owned culvert under 42nd Ave S, toward the dam feature located on privately -owned property (fish passage ID 44991, total barrier). (Date: 2/4/2011) ATTACHMENT A: PHOTOGRAPHS Photo 18. Upper Gilliam Creek: view of the Gilliam Creek RDF structure (fish passage ID 45078, partial barrier). This feature was identified as a partial barrier by WDFW, but appeared to be a total barrier during the windshield survey. (Date: 2/4/11) Photo 20. Johnson Creek: view upstream of the old inlet to the outfall to the Green River (fish passage ID 50000, partial barrier). The flap gate and outfall were replaced with a fish - passable structure (see Photo 21). (Date: 2/3/2011) Photo 19. Upper Gilliam Creek: view downstream from outlet of the culvert underneath Southcenter Boulevard (fish passage ID 44989, total barrier). In addition to the culvert identified by WDFW as a total barrier, the flow appeared too low for adult fish through this length. (Date: 2/4/11) Photo 21. Newly restored section of the main Johnson Creek: reach, looking upstream of the inlet to the outfall to the Green River (fish passage ID 50000, partial barrier). The culvert and flood gate were replaced with a fish -passable structure (passable under most flow conditions) under the mitigation for the adjacent Tukwila South project. (Date: Fall 2011) WBG031611103411SEA ATTA_PHOTOS-FISHPASSAGEINVENTORY_TUKWILASWCP_V2 A-5 C f CITY OF TUKWILA NOTICE OF APPLICATION PROJECT INFORMATION The City of Tukwila has filed an application for special permission to perform work in sensitive areas are part of the 42 Avenue S. reconstruction project. The planned street improvements will modify the existing watercourse, Gilliam Creek, and its buffer and remove significant trees within the sensitive areas adjacent to the street. Street improvement includes sidewalks, street illumination, undergrounding overhead utility lines, storm drainage facilities and culvert replacement containing Gilliam Creek. The existing culvert is a non -fish passable, 92-foot long, 3-foot diameter concrete pipe & will be replaced with a 146-foot long, 16-foot wide by 8-foot, corrugated metal fish passable culvert. Projects applied for include: Special Permission L16-0011 Other known required permits include: Environmental Review (SEPA) E14-0010; WA State Hydraulics permit, Army Corps Nationwide Permit Studies Submitted with the Application: Wetland and Stream Assessment, prepared by Jeffery S. Jones, May 7, 2013; Reasonable Use Exception Buffer Mitigation Planting Plan, revised April 24, 2014. An environmental checklist has been submitted with the studies identified above. FILES AVAILABLE FOR PUBLIC REVIEW The applications are available for review at the City of Tukwila, Department of Community Development (DCD), located at 6300 Southcenter Blvd #100. M-F 8:30 a.m. - 5 p.m. OPPORTUNITY FOR PUBLIC COMMENT Your written comments on the project are requested. They must be delivered to DCD at the address above or postmarked no later than 5:00 P.M., May 2, 2017. APPEALS You may request a copy of any decision and your appeal rights by calling DCD at (206) 431-3670. For further information on this proposal, contact Moira Bradshaw at (206) 431-3651, moira.bradshaw@tukwilawa.gov or visit our offices at 6300 Southcenter Boulevard, Suite #100, Monday through Friday, 8:30 a.m. to 5:00 p.m. Application Filed: March 3, 2016 Notice of Completeness Issued: April 5, 2017 Notice of Application Issued: April 19, 2017 C. 3 y z o n z * al a H a c S. C H in C..Fls o`D c 0 o W We 0 o W Existing Conditions V, 03 a z a H Iv D) .4 a a 3 fy 0, -I n. None shown Storm Drainage facilities V! D) (J) m C.M m in 0,1 5.5 foot shoulder V) a Iv VI fD rt tit � 0 In C Dl z O Bike lanes F+ A -, ID 11 feet west side 14 feet east side 11-12 feet Vehicle lanes VI m (1) 2 s: V I fD Di inVI et V) m 'C < rD IA m in A 0 = n m fD '0 m 4 foot plants both sides amenity/ utility zone Landscaping issues not finalized and statement was made that they would be addressed in a Special Permission approval. Concern about lack of pervious surfaces. DCD Reference to Sensitive Area regulations of TMC. z 0 rit (D a,uanbaS 2u!uueld Attachment - Site Plan of Creek and proposed Storm Water facility put uoRua1aa w.1o1s a I to re cr z d i z -I 3 ° ( N in 1,11 m aaay; of oaaz 0 D CITY OF TUKWILA Vf Department of Community SPECIAL t SPECIAL M O,g 1,§M 6300 Southcenter Boulevard, Tukwila, WA o . PERMISSION — luawdolanaa fliuntuwoo Telephone. (206) 431-3670 FAX (206) 4 6�s 3 9 DIRECTOR E-mail: planning(a,TukwilaWA.gov /� APPLICATION FOR STAFF USE ONLY Permits Plus Type: P-SP Planner: File Number: 1._. 16- 00 1 Application Complete Date: Project File Number: pL i U , &40(::)' Application Incomplete Date: Other File Numbers: %11- 0010 NAME OF PROJECT/DEVELOPMENT: 40th-42nd Avenue S Phase III and Gilliam Creek Culvert Replacement Project LOCATION OF PROJECT/DEVELOPMENT: Give street address or, if vacant, indicate lot(s), block and subdivision, access street, and nearest intersection. Within existing 60 foot wide right of way for 42nd Avenue S from Southcenter Boulevard to S 160th Street. LIST ALL TAX LOT NUMBERS (this information may be found on your tax statement). RECEIVED MAR 0 2016 DEVELOPMENT COORDINATOR : Community The individual who: Development • has decision making authority on behalf of the owner/applicant in meetings with City staff, • has full responsibility for identifying and satisfying all relevant and sometimes overlapping development standards, and • is the primary contact with the City to whom all notices and reports will be sent. Name: Cyndy Knighton Address: 6300 Southcenter Blvd, Suite 100, Tukwila WA 98188 Phone: (206) 431-2450 E-mail: Cyndy.Knighton@TukwilaWA.gov 1 Signature: FAX: (206) 431-3665 Date: CITY OF TUKWILA Department of Community Development 6300 Southcenter Boulevard, Tukwila, WA 98188 Telephone: (206) 431-3670 FAX: (206) 431-3665 E-mail: planning@TukwilaWA.gov AFFIDAVIT OF OWNERSHIP AND HOLD HARMLESS PERMISSION TO ENTER PROPERTY STATE OF WASHINGTON ss COUNTY OF KING The undersigned being duly sworn and upon oath states as follows: 1. 1 am the current owner of the property which is the subject of this application. 2. All statements contained in the applications have been prepared by me or my agents and are true and correct to the best of my knowledge. 3. The application is being submitted with my knowledge and consent. 4. Owner grants the City, its employees, agents, engineers, contractors or other representatives the right to enter upon Owner's real property, located at for the purpose of application review, for the limited time necessary to complete that purpose. 5. Owner agrees to hold the City harmless for any loss or damage to persons or property occurring on the private property during the City's entry upon the property, unless the loss or damage is the result of the sole negligence of the City. 6. Non -responsiveness to a City information request for ninety (90) or more days, shall be cause to cancel the application(s) without refund of fees. EXECUTED at (city), (state), on , 20 (Print Name) (Address) (Phone Number) (Signature) On this day personally appeared before me to me known to be the individual who executed the foregoing instrument and acknowledged that he/she signed the same as his/her voluntary act and deed for the uses and purposes mentioned therein. SUBSCRIBED AND SWORN TO BEFORE ME ON THIS DAY OF , 20 NOTARY PUBLIC in and for the State of Washington residing at My Commission expires on Cash Register Receipt City of Tukwila DESCRIPTIONS ProjectTR4 ACCOUNT QUANTITY PAID 6012 16-0011 dress:1 00_1579942ND A! n: STRT-010 1.6017, SENSITIVE AREAS $1,525 00 SENSITIVE AREAS R000.345.810.00.00 0.00 $1,525.00 TECHNOLOGY FEE $76.25 TECHNOLOGY FEE TOTAL FEES PAID BY RECEIPT: R7817 R000.322.900.04.00 0.00 $76.25 $1,601.25 C0303. 1000, 107 103, °a , S-?S, too (es. 00 Date Paid: Thursday, March 03, 2016 Paid By: CITY OF TUKWILA Pay Method: CITY ACCOUNT i 1 �.. i 1 W'J 1 Vi► 103 . Cos-. CITY OF TUKWILA Department of Community Development 6300 Southcenter Boulevard, Tukwila, WA 98188. Telephone: (206) 431-3670 FAX: (206) 431-3665 E-mail: planninz(a,TukwilaWA.gov SPECIAL PERMISSION - DIRECTOR INFORMATION The Tukwila Zoning Code and Sign Code have established "Special Permission" decisions, which are more complex than straightforward applications of code standards, but do not require a public hearing. Tukwila Municipal Code Title 18. REQUIREMENTS: Special permission approval by the Director is required in the following situations. Parking Deviations/Determination (Zoning Code, TMC 18.56) • Covenant Parking: When required parking is provided off -site. (TMC 18.53.070) • Complementary Parking: When up to 10% of a development's useable floor area is determined to be linked to remaining areas such that it need not provide the normally required parking. • Administrative Variance: Reduction in the minimum number of required parking spaces of up to 10%. • Parking Standard for Uses not specified. (TMC 18.56.100) • Parking Lot Restriping. • Residential Parking reduction. Landscape Deviations (Zoning Code, TMC 18.52.020) • Landscape perimeter averaging. • Developing pedestrian and transit facilities within the required front yard landscape area. in MDR and HDR zones. • Substitution of pedestrian oriented space for landscaping in RCC and TUC zones. Sensitive Area Ordinance Deviations, Alterations or Uses Requiring Administrative Review and Approval (TMC 18.45.070, TMC 18.45.090, TMC 18.45.110) • Request for setback waiver or buffer reduction. • Maintenance & repair of existing uses/facilities where additional fill will be placed or heavy equipment used. • New surface water discharges. • Placement of bioswales and/or dispersion outfalls in a wetland or watercourse buffer. • Enhancement or other mitigation including landscaping with native plants. • Construction of essential utilities. • Construction of new essential public streets, roads and rights of way. • Public or private use and access. • Dredging, digging or filling in a sensitive area or buffer. • Hazardous tree removal from a sensitive area. • Any alteration to a sensitive area or its buffers, including vegetation removal. • Transfer of wetland mitigation to a wetland mitigation bank or other off -site mitigation. • Approval of a Sensitive Area Master Plan or any alteration to an approved Sensitive Area Master Plan. Cargo Containers as accessory structures (TMC 18.50.060 and 18.70.130) • Request to install a container in the LDR, MDR, HDR, RC, RCM, TUC or C/LI Zones. Single -Family Design Standard Exceptions • Request for a roof pitch flatter than 5:12 or a front door that faces the side or rear yard. PROCEDURES: At the time you submit your application you must have all of the items listed on the attached "Complete Application Checklist." You may request a waiver from items on the checklist that are not applicable to your project. Please discuss this waiver request with City staff either at a pre -application meeting or at the time of application submittal. Within 28 days of receiving your application, City staff will determine if it is complete based on the attached checklist. If not complete City staff will mail you a letter outlining what additional information is needed. If you do not submit requested materials within 90 days from the City's request for additional information the City may cancel your application. Once the application is complete, it will be reviewed by the Director who will issue a decision to approve, modify or deny the application based on the review criteria. COMPLETE APPLICATION CHECKLIST The materials listed below must be submitted with your application unless specifically waived in writing by the Public Works Department and the Department of Community Development. Please contact each Department if you feel that certain items are not applicable to your project and should be waived. Application review will not begin until it is determined to be complete. ADDITIONAL MATERIALS MAY BE REQUIRED. The initial application materials allow project review to begin and vest the applicant's rights. However, the City may require additional information as needed to establish consistency with development standards. City Staff are available to answer questions about application materials at 206-431-3670 (Department of Community Development) and 206-433-0179 (Department of Public Works). Check items submitted with application Information Required. May be waived in unusual cases, upon approval of both Public Works and Planning APPLICATION MATERIALS: i 1. Application Checklist one (1) copy, indicating items submitted with applilcation. 2. Application Fee: See Land Use Fee Schedule. ✓ 3. Written description of the project, the deviation or approval being requested and response to the applicable decision criteria. ZONING CODE PARK NG DEVIATION 4. A complete description of the proposed construction relative to parking areas, and all supporting agreements. 5. Dimensional site plan(s) to demonstrate parking area consistent with Zoning Code requirements. 6. Parking studies as needed to demonstrate adequate parking is provided. LANDSCAPE DEVIATION 7. Landscape plan — two (2) copies showing size and species of existing and proposed plant materials, required perimeter landscape types, parking areas, buildings, walkways, transit facilities, property lines, dimensions and area of planting beds and any calculations necessary to demonstrate compliance with review criteria. SENSITIVE AREA ORDINANCE - Deviations, Alterations or Uses Requiring Administrative Review and Approval ✓ 8. Site Plan — two (2) copies showing all buildings, parking areas, walkways, property lines, planting areas, sensitive areas, their buffers and setbacks. ✓ 9. Sensitive area studies, mitigation and enhancement plans to justify a requested use, deviation, alteration or buffer or setback reduction and demonstrate that the reduction will not result in a direct or indirect short- term or long-term adverse impact to the sensitive area per TMC 18.45.090(D) or 18.45.110(C). See TMC 18.45.040(B) for required element s of wetland and/or watercourse sensitive area studies and TMC 18.45.040(C) for the required elements of a geotechnical report. Check items submitted with application Information Required. May be waived in unusual cases, upon approval of both Public Works and Planning CARGO CONTAINER APPROVAL 10. Site plan showing the location of the container(s) in relationship to parking areas, property lines, buildings, streets, trails, landscape areas and setbacks. 11. Description of the proposed screening. 12. Dimensions of proposed cargo container. SINGLE-FAMILY DESIGN STANDARD EXCEPTIONS 13. Dimensioned and scalable building elevations with keyed colors and materials. 14. The site plan must include a graphic scale, north arrow, proposed house footprint, any existing structures, lob: lines, setbacks, adjacent streets, driveways, parking areas, any sensitive areas and any fences, rockeries or retaining walls. REVIEW CRITERIA Please consult the Zoning Code or Sign Code as to the appropriate criteria for your specific proposals. In addition all approvals must be consistent with the Tukwila Comprehensive Plan (TMC 18.100.030). Tukwila Municipal Code Title 18. Planning Division Staff are available to discuss the decision criteria you must respond to and necessary supporting materials. PARKING DEVIATION • Covenant Parking: where required parking is provided off -site (TMC 18.56.070(B)); • Complementary Parking: where up to 10% of a development's useable floor area is determined to be linked to remaining area, such that it need not provide the normally required parking (TMC 18.56, 070(D)); • Reduction of the minimum required parking of up to 10%, through an administrative variance (TMC 18.56.140). A parking reduction may be allowed after: 1. All shared parking strategies are explored. 2. On -site park and ride opportunities are fully explored. 3. The site is in compliance with the City's commute trip reduction ordinance or, if not an affected employer as defined by the City's ordinance, agrees to become affected. 4. The site is at least 300 feet away from a single-family residential zone. 5. A report is submitted providing a basis for less parking and mitigation necessary to offset any negative effects. In addition to the above requirements, the Director may require specific measures not listed to ensure that all impacts with reduced parking are mitigated. Any spillover parking that cannot be mitigated to the satisfaction of the Director will serve as the basis for denial. LANDSCAPE DEVIATIONS • The landscape perimeter may be averaged if the total required square footage is achieved, unless the landscaping requirement has been increased due to proximity to LDR, MDR or HDR. Landscape perimeter averaging may be allowed as a Type 2 special permission decision if all of the following criteria are met: 1. Plant material can be clustered to more effectively screen parking areas and blank building walls. 2. Perimeter averaging enables significant trees or existing built features to be retained. 3. Perimeter averaging is used to reduce the number of driveways and curb cuts and allow joint use of parking facilities between neighboring businesses. 4. Width of the perimeter landscaping is not reduced to the point that activities on the site become a nuisance to neighbors. 5. Averaging does not diminish the quality of the site landscape as a whole. • In the MDR and FIDR zones up to 20% of the minimum required front yard landscaped area may be developed for pedestrian and transit facilities. • In the RCC and TUC zones required landscaping may include a mix of plant materials, pedestrian amenities and features, outdoor cafe -type seating and similar features. Required plant materials will be reduced in proportion to the amount of perimeter area devoted to pedestrian oriented space. SENSITIVE AREA ORDINANCE — Deviations, Alterations or Uses Requiring Administrative Review and Approval • Setbacks TMC 18.45.080(E) and TMC 18.45.100(D). All commercial and industrial developments shall be set back 15 feet and all residential development shall be set back ten feet, measured from the foundation to the buffer's edge. The Director may waive setback requirements when a site plan demonstrates there will be no impacts to the buffer zone from construction or occasional maintenance activities. • Buffer Reductions TMC 18.45.080(F) and TMC 18.45.100(E). (Please note, no buffer reduction is permitted where the buffer consists of undisturbed, native vegetation.) The Director may reduce the standard wetland/watercourse buffers on a case -by -case basis, provided the buffer does not contain slopes 15% or greater. Under certain circumstances, a buffer reduction may be considered for property with slopes less than 15% (see TMC 18.45.080(F) and 18.45.100(E)). The approved buffer width shall not result in greater than a 50% reduction in width. Any buffer reduction proposal must demonstrate to the satisfaction of the Director that it will not result in direct or indirect, short-term or long-term adverse impacts to wetlands or watercourses, and that: 1. Additional protection to wetlands will be provided through the implementation of a buffer enhancement plan; 2. The existing conditimn of the buffer is degraded; 3. Buffer enhancement: includes, but is not limited to the following: (a) Planting vegetation that would increase value for fish and wildlife habitat or improve water quality; (b) Enhancement of wildlife habitat by incorporating structures that are likely to be used by wildlife, including wood duck boxes, bat boxes, snags, root wads/stumps, birdhouses and heron nesting areas; or (b) Removing non-native plant species and noxious weeds from the buffer area and replanting the area subject to TMC 18.45.080(F)(2)(c)(1). • Uses Requiring Administrative Review and Approval The following uses may be permitted only after administrative review and approval by the Director — see TMC 18.45.070(B) or TMC 13.45.110(B) for additional guidance: 1. Maintenance & repair of existing uses/facilities where additional fill will be placed or heavy equipment used; 2. New surface water discharges to a sensitive area; 3. Placement of bioswales and dispersion outfalls in a wetland or watercourse buffer; 4. Enhancement or other mitigation including landscaping with native plants; 5. Construction of essential utilities; 6. Construction of new essential public streets, roads and rights of way; 7. Public or private use and access; 8. Dredging, digging or filling in a sensitive area or its buffer; 9. Removal of hazardous trees from a sensitive area; 10. Transfer of wetland mitigation to a wetland mitigation bank (TMC 18.45. 090(E)) or other off -site mitigation. • Alterations Requiring Administrative Review and Approval by the Director (TMC 18.45.090(B), TMC 18.45.110(B)). 1. Piping, rerouting or diverting a watercourse 2. Any alteration to a sensitive area or its buffers, including vegetation removal, or alterations to wetlands less than 1,000 sq. ft. (see TMC 18.45.090(B)(5)); 3. Approval of a Sensitive Area Master Plan or any alteration to an approved Sensitive Area Master Plan Q CARGO CONTAINERS Approval criteria for cargo containers to be installed in the LDR, MDR, and HDR zones for institutional uses and in the RC, RCM, TUC or C/LI zones for permitted or conditional uses: • Only two cargo containers will be allowed per lot, maximum length 40 feet. • The container is located to minimize the visual impact to adjacent properties, parks, trails and rights -of -way as determined by the Director. • The cargo container is sufficiently screened from adjacent properties, parks, trails and rights -of -way, as determined by the Director. Screening may be a combination of solid fencing, landscaping, or the placement of the cargo containers behind, between or within buildings. • If located adjacent to a building, the cargo container must be painted to match the building's color. • Cargo containers may not occupy any required off-street parking spaces. • Cargo containers shall meet all setback requirements for the zone. • Outdoor cargo containers may not be refrigerated. • Outdoor cargo containers may not be stacked. SINGLE-FAMILY DESIGN STANDARD EXCEPTIONS The design standards required at 18.50.050 (5) and (6) may be modified by the DCD Director. • The criteria for approval of a roof pitch flatter than 5:12 are as follows: 1. The proposed roof pitch is consistent with the style of the house (for example modem, southwestern); 2. If a flat roof is proposed, the top of the parapet may not exceed 25 feet in height; 3. If a sloped roof is proposed, it must have at least 24-inch eaves; and 4. The house exhibits a high degree of design quality, including a mix of exterior materials, detailing, articulation and modulation. • The criteria for approval of a house with a front door that faces the side or rear yard are as follows: 1. The topography of the lot is such that pedestrian access is safer or more convenient from the side or rear yard; 2. The house will be set back at least twice the minimum front yard setback; 3. The entrance is oriented to take advantage of a site condition such as a significant view; or 4. The entry feature is integral to a unique architectural design. COMPLETE APPLICATION CHECKLIST The materials listed below must be submitted with your application unless specifically waived in writing the Department of Community Development. Please contact each Department if you feel that certain items are not applicable to your project and should be waived. Application review will not begin until it is determined to be complete. ADDITIONAL MATERIALS MAY BE REQUIRED. The initial application materials allow project review to begin and vest the applicant's rights. However, the City may require additional information as needed to establish consistency with development standards. City staff are available to answer questions about application materials at 206-431-3670 (Department of Community Development) and 206-433-0179 (Department of Public Works). Check items submitted with application Information Required. May be waived in unusual cases, upon approval of both Public Works and Planning APPLICATION MATERIALS: Items 1-9 are required for ALL Wireless Telecommunication Facilities. 1. Application Checklist (1 copy) indicating items submitted with application. / ✓ 2. Completed Application Form and drawings (5 copies). V ��^ 3. Four sets of plans prepared by a design professional. The plans shall include a vicinity map, site map, architectural elevations, method of attachment, proposed screening, location of proposed antennas, and all other information which accurately depicts the proposed project. Minimum size is 8 1/2" x 11". Plans shall be no greater than 24" x 36". ''` / 4. Application Fee: See Land Use Fee Schedule. \ - 5. Completed and notarized Affidavit of Ownership and Hold Harmless Permission to Enter Property (1 copy attached). 6. SEPA Environmental Checklist. SEPA is not required when the facility: i) Is a microcell and is to be attached to an existing structure that is not a residence or school and does not contain a residence or a school; ve"ii) Includes personal wireless antennas, other than a microcell, and is to be attached to an existing structure (that may be an existing tower) that is not a residence or school and does not contain a residence or school, and the existing structure to which it is to be attached is located in a commercial,industrial, manufacturing, forest or agriculture zone; or iii) Involves constructing a personal wireless tower less than sixty feet in height that is located in a commercial, industrial, manufacturing, forest, or agricultural zone. 7. A letter from the applicant describing the proposed project and describing compliance with the City's Code requirements. Include statement whether the proposal is considered a "substantial change" or not as defined by the FCC rules. l Yfr 8. Sensitive Area studies and proposed mitigation (if required). 9. If an outdoor generator is proposed, a report prepared by an acoustical engineer demonstrating compliance with TMC Chapter 8.22, "Noise". If the application requires a Type 2 review these additional items are needed: 10. Four sets of photo simulations that depict the existing and proposed view of the proposed facility; 11. Materials board for the screening material; 12. Landscaping plan; 13. Letter from a radio frequency engineer that demonstrates that the facility meets Federal requirements for allowed emissions; 14. If the facility is located within a residential zone, a report from a radio frequency engineer explaining the need for the proposed wireless communication facility at that location. Additionally, the fl Check items submitted with application Information Required. May be waived in unusual cases, upon approval of both Public Works and Planning applicant shall provide detailed discussion on why the wireless communication facility cannot be located within a commercial or industrial zone. If the application requires a Type 3 review these additional items are needed: 15. A narrative responding to the criteria at TMC Section 18.58.060. 16. The radio frequency engineer report shall include a discussion of the information required under TMC Section 18.58.070. The report shall also explain why a tower must be used instead of any of the other location options outlined in Table A. 17. Engineering Plans for the proposed tower. 18. A vicinity map depicting the proposed extent of the service area. 19. A graphic simulation showing the appearance of the proposed tower and ancillary structures and ancillary facilities from five points within the impacted vicinity. Such points are to be mutually agreed upon by the Director of DCD and applicant. Al! plans and photo simulations shall include the maximum build -out of the proposed facility. 20. Evidence of compliance with Federal Aviation Administration (FAA) standards for height and lighting and certificates of compliance from all affected agencies. 21. Evidence that the tower has been designed to meet the minimum structural standards for wireless communication facilities for a minimum of three providers of voice, video or data transmission services, including the applicant, and including a description of the number and types of antennas the tower can accommodate. PUBLIC NOTICE MATERIALS: N PC 22. Payment of notice board fee (see Land Use Fee schedule) to FastSigns Tukwila OR provide a 4' x 4' public notice board on site within 14 days of the Department determining that a complete application has been received (see Public Notice Sign Specifications Handout). 23. Pay the fee as established by the Land Use Fee Schedule for generating mailing labels; OR provide an excel spreadsheet of mailing labels for all property owners and tenants (residents and businesses) within 500 feet of the subject property. Each unit in multiple family buildings e.g. apartments, condos, trailer parks --must be included. Once your project is assigned to a planner, you will be required to provide an electronic copy of the mailing label spreadsheet in the following format: Name, Street Address, City St Zip, with each of these fields as an individual column: Name Street Address City, St, Zip Mr. Smith 1234 Park Ave S Tukwila WA 98188 PLEASE NOTE: Regardless of whether you pay the City to generate the mailing labels or you provide them, there is an additional fee for postage and material as listed under Public Notice Mailing Fee on the Land Use Fee Schedule. Payment of this fee is due prior to issuance of the decision and you will receive a separate bill for this fee. 24. If providing own labels, include King County Assessor's map(s) which shows the location of each property within 500 ft. of the subject lot. • .• ••• isr AA le Exhibit A ij Two areas of Environmentally Sensitive Area Decisions • • ••• ••• 4.,••••••••••••, • „. innFi • • te. City of Tukwila Sensitive Area Map Category IV Wetlands and buffers do not exist — See Tro• 2 S7git, l)ve Sveern P — Type 3 $reeP^ som Typo 3 Svelte — Type 4 *tem Tir,e St• -ea-, Sres,Besn O s: 0 F stsArsd4 't HAP tot snW '414e8.Ne, • WeVersla • Cregoey• 11 • C mew/ iq al Cevisrey ry - etterdeav*v • wo O so El so Vteee: •se Le•XIV•de 0 2 • Yodyrt. • c. • 4 • W.) 14 9h n F‘oVse, Stskth N••d•cl • -. 1 a 4401 a a `l 0."1i N 1 Zs •Va �♦ ,\ S. oz GOHLI 60i7S6# hr Centerline Existing 36" Dia. Pipe Culvert a Ns Culvert shifted south to avoid impact to existing steep slope/ Rockery wall `A NtiJ o ro ♦ Centerline Proposed 16' wide x 8' high =A arch Culvert W Z O D W O Z Q. ¢¢U J 0 E -0 Ux O • o -0 aO J O U m 0 + W, O Q.'2 • • sLI �' �¢---- J. `+ram o0 �bn • w � 1 • • `. 7 x i e4r•rvv bm•'•. �. J J�N yN22h /bCS'. J,rj 1g NOJ DUir ZO �`d'• 0 U Z..r.. . as ♦ ♦ ♦ ♦ ♦ • • • • • • ♦ ♦ • °ti••. •.,any • �Jd PROJECT LOCATION Aso VICINITY MAP NOT TO SCALE MAYOR ALLAN EKBERG CITY COUNCIL DENNIS ROBERTSON—PRESIDENT KATE KRULLER JOE DUFFIE VERNA SEAL KATHY HOUGARDY THOMAS McLEOD DE'SEAN QUINN CITY ADMINISTRATOR DAVID CLINE PUBLIC WORKS DIRECTOR BOB GIBERSON, P.E. CITY ENGINEER ROBIN TISCHMAK, P.E. PROJECT MANAGER CYNDY KNIGHTON CITY OF TUKWILA 40TH - 42ND AVENUE SOUTH - PHASE III CITY OF TUKWILA, WASHINGTON SEC. 22, T. 23 N, R 4 E., W.M. CITY OF TUKWILA LOCATION MAP NOT TO SCALE City of Tukwila "The City of Opportunity, The Community of Choice" DEPARTIvENT OF PUBIC WORKS 6300 SOUTHCENTER BLVD., SUITE 100 TUKWILA, WA 98188 (206) 433-0179 PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- by dote dbegrroE EWH Onron KRW MW RJM field bkno INDEX TO DRAWINGS SHEET NUMBER DRAWING NUMBER DESCRIPTION 1 2 3 4 5 THRU 9 10 11 12 THRU 17 18 19 THRU 20 21 22 THRU 23 24 THRU 25 26 THRU 30 31 THRU 35 36 THRU 37 38 THRU 39 40 41 THRU 42 43 44 THRU 49 50 THRU 53 54 THRU 64 65 THRU 70 71 72 73 THRU 74 75 76 77 78 79 80 81 THRU 85 86 87 88 THRU 89 GE-1 GE-2 SV-1 DMN-1 DM-1 THRU DM-5 RS-1 PVN-1 PV-1 THRU PV-6 PVD-1 DV-1 THRU DV-2 DVD-1 ID-1 THRU ID-2 IG-1 THRU IG-2 DR-1 THRU DR-5 DR-6 THRU DR-10 DRD-1 THRU DRD-2 DRD-3 THRU DRD-4 CV-1 CVD-1 THRU CVD-2 CVD-3 UT-1 THRU UT-6 UTP-1 THRU UTP-4 UTD-1 THRU UTD-11 CH-1 THRU CH-6 CHD-1 CHD-2 CHD-3 THRU CHD-4 RT-1 RT-2 RT-3 RT-4 RT-5 RT-6 LA-1 THRU LA-5 LA-6 LA-7 CS-1 THRU CS-2 COVER SHEET, VICINITY MAP, INDEX OF DRAWINGS GENERAL INFORMATION, LEGEND, AND NOTES SURVEY CONTROL NOTES AND ALIGNMENT DATA TABLES DEMOLITION AND EROSION CONTROL NOTES DEMOLITION AND EROSION CONTROL PLAN TYPICAL ROADWAY SECTIONS PAVING LEGEND AND NOTES PAVING PLAN AND PROFILE PAVING AND GRADING DETAILS DRIVEWAY PROFILES DRIVEWAY DETAILS INTERSECTION DETAILS INTERSECTION GRADING PLAN DRAINAGE AND UTILITY PLAN AND PROFILE DRAINAGE PROFILES DRAINAGE AND UTILITY DETAILS STORMWATER VAULT PLAN & SECTIONS CULVERT PLAN AND PROFILE CULVERT DETAILS CULVERT FOOTING DETAILS UTILITY UNDERGROUNDING PLANS UTILITY UNDERGROUNDING PROFILES UTILITY UNDERGROUNDING DETAILS CHANNELIZATION, ILLUMINATION AND SIGNING PLAN ILLUMINATION DETAILS ILLUMINATION SCHEDULES SIGN SCHEDULE ROCKERY WALL RW-1 R PLAN AND PROFILE ROCKERY WALL RW-1L PLAN AND PROFILE ROCKERY WALL RW-2L AND RW-3R PLAN AND PROFILE INTEGRAL CURB WALL RW-3L PLAN, PROFILE & DETAILS ROCKERY WALL RW-1R SECTIONS & DETAILS ROCKERY WALL RW-1 L, 2L & 3R SECTION & DETAILS LANDSCAPE PLAN LANDSCAPE NOTES AND PLANT SCHEDULE LANDSCAPE DETAILS CONSTRUCTION STAGING AND DETOUR PLAN PLANS BY OTHERS 1 THRU 7 SCHEDULE D VALLEY VIEW SEWER DISTRICT PLANS 1 THRU 7 SCHEDULE E KING COUNTY WATER DISTRICT NO. 125 PLANS eXR1B IT$ �L14-eo�l 100% Progress Set February 2017 CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III COVER SHEET, VICINITY MAP, INDEX OF DRAWINGS no data rertsions Q rT L 1 89 Be no GE-1 scale 'WA Mtnnn ABND ACP ALDL AL ALT AP APPROX APVD ASPH ASTM AWS BEG BTWN BLDG BP BVC C C/L C&G CAN CB CDF CHK CL CJP CMP COL COMP GQNC CONN CONST, CONSTR CONT CPE CPEP CPOW CSBC CSTC CTRD DBH DI DIP DIA. DIAM o DR DRWY DSGN DWG(S) E EA EL, ELEV EMBED EP EQ ESC ESMT EVC EVP EW EXIST, EXST EXP F FG FH FL FT FTG GALV, GA GV H, HT HDPE HMA HORIZ HVCF PERCENT AT ABANDONED ASPHALT CONCRETE PAVEMENT AUUITIUNAL ALUMINUM ALTERNATE ANGLE POINT APPROXIMATE APPROVED EXISTING ASPHALT PAVEMENT AMERICAN SOCIETY OF TESTING MATERIALS AMERICAN WELDING SOCIETY BEGIN BETWEEN BUILDING BURIED POWER BEGIN VERTICAL CURVE CUT CENTERLINE CURB AND GUTTER CABLE TV CATCH BASIN CONTROLLED DENSITY FILL CHECKED BY CLASS COMPLETE JOINT PENETRATION CORRUGATED METAL PIPE COLUMN COMPACTED CONCRETE CONNECTION CONSTRUCTION CONTINUOUS, CONTINUED CORRUGATED POLYETHYLENE CORRUGATED POLYETHYLENE PIPE COALESCING PLATE OIL -WATER SEPARATOR CRUSHED SURFACING BASE COURSE CRUSHED SURFACING TOP COURSE CENTERED DIAMETER © BREAST HEIGHT DUCTILE IRON DUCTILE IRON PIPE DIAMETER DRAWN BY DRIVEWAY DESIGNED BY DRAWING (S) EAST, EASTING EACH ELEVATION EMBEDMENT EDGE OF PAVEMENT EQUIDISTANT, EQUAL EROSION AND SEDIMENTATION CONTROL EASEMENT END VERTICAL CURVE EMERGENCY VEHICLE PRE-EMPTION EACH WAY EXISTING EXPANSION FILL FINISHED GRADE FIRE HYDRANT FLOW LINE FEET FOOTING GALVANIZED GAS VALVE HEIGHT HIGH DENSITY POLYETHYLENE HOT MIX ASPHALT HORIZONTAL HIGH VISIBILITY FENCE ID IE, INV IN IV JB JT L LF LT LUM MAX MFR MH MIN MON N NA NAD NE NGVD NO. OR # NOM NST NTS NW OC OD GPP PC PCCP PCSSP PED PERF PG PI PL POB POC POE POT PPB PRC PROP PRVC PSF PSI PST PT PVC PVI PVMT R R/W, R.O.W. RCSSP RD RECOMM REINF REQD RET RGS RP RPM RT S SAN SCH SD SDWK SE SEC SF OR SQ SHLDR ABBREVIATIONS INSIDE DIAMETER INVERT ELEVATION INCH IRRIGATION VALVE JUNCTION BOX JOINT LENGTH LINEAL FEET LEFT LUMINAIRE MAXIMUM MANUFACTURER MANHOLE MINIMUM MONUMENT NORTH, NORTHING NOT APPLICABLE NORTH AMERICAN DATUM NORTHEAST NATIONAL GEODETIC VERTICAL DATUM NUMBER NOMINAL NOT STEEPER THAN NOT TO SCALE NORTHWEST ON CENTER OUTSIDE DIAMETER OPPOSITE POINT OF CURVATURE (HORIZ) PORTLAND CEMENT CONCRETE PAVEMENT PLAIN CONCRETE STORM SEWER PIPE PEDESTRIAN PERFORATED PERFORMANCE GRADE POINT OF INTERSECTION (HORIZ) PLACE, PLATE POINT OF BEGINNING POINT ON CIRCLE POINT OF ENDING POINT ON TANGENT PEDESTRIAN PUSH BUTTON POINT OF REVERSE CURVE PROPOSED POINT OF REVERSE VERTICAL CURVE POUNDS PER SQUARE FOOT POUNDS PER SQUARE INCH PORTABLE STORAGE TANK POINT OF TANGENCY (HORIZ) POLYVINYL -CHLORIDE POINT OF VERTICAL INTERSECTION PAVEMENT RADIUS RIGHT-OF-WAY REINFORCED CONCRETE STORM SEWER PIPE ROAD RECOMMENDED REINFORCING REQUIRED RETAINING RIGID STEEL RADIUS POINT RAISED PAVEMENT MARKER RIGHT SOUTH SANITARY SCHEDULE STORM DRAIN SIDEWALK SOUTHEAST SECTION FT SQUARE FEET SHOULDER SHT SMC SPECS SQ YD OR SR SS SSMH SS, SST ST STA STD STL STRUCT SW SYMM T TCE TEL TEL MH TEMP TERM CAB THRU TS TV TYP UNO UP VAP VC VERT VG VPC VPT W W/ WM WSDOT WV VWVM SHEET SOLID METAL COVER SPECIFICATIONS SYSQUARE YARD STATE ROUTE SANITARY SEWER SANITARY SEWER MANHOLE STAINLESS STEEL STREET OR STORM SEWER STATION STANDARD STEEL STRUCTURAL SOUTHWEST, SIDEWALK SYMETRICAL TANGENT LENGTH OF CURVE OR TELEPHONE TEMPORARY CONSTRUCTION EASEMENT TELEPHONE TELEPHONE MANHOLE TEMPORARY TERMINAL CABINET THROUGH TRAFFIC SIGNAL TELEVISION TYPICAL UNLESS NOTED OTHERWISE UTILITY POLE VERTICAL ANGLE POINT VERTICAL CURVE VERTICAL VANED GRATE VERTICAL POINT OF CURVATURE VERTICAL POINT OF TANGENCY WEST, WATER, OR WIDTH WITH WATER METER WASHINGTON STATE DEPT OF TRANSPORTATION WATER VALVE WELDED WIRE MESH GENERAL NOTES 1. ALL DIMENSIONS ARE IN FEET AND DECIMALS OF A FOOT UNLESS OTHERWISE NOTED. 2. ALL ROAD DIMENSIONS ARE MEASURED TO FACE OF CURB UNLESS OTHERWISE NOTED. 3. UTILITY INFORMATION SHOWN IS COMPILED FROM DATA FURNISHED BY THE VARIOUS UTILITY OWNERS AND AGENCIES. THE ACCURACY AND COMPLETENESS OF THIS DATA IS NOT GUARANTEED. BEFORE STARTING ANY PHASE OF CONSTRUCTION, THE CONTRACTOR SHALL VERIFY WITH THE APPROPRIATE UTILITY OWNER OR AGENCY ALL PERTINENT DATA SHOWN INCLUDING: A. THE EXACT LOCATIONS, SIZES AND MATERIALS OF UTILITIES B. THE ACTUAL STATUS OF THE AFFECTED UTILITIES. 4. TWO WORKING DAYS PRIOR TO DIGGING, CALL 1-800-424-5555 (ONE CALL). 5. ALL UTILITIES SHALL BE PROTECTED AND MAINTAINED DURING CONSTRUCTION. THE ABBREVIATIONS AND SYMBOLS IN THESE PLANS SUPPLEMENT OR MODIFY THOSE IN THE STANDARD SPECIFICATIONS. 7. EXISTING CONDITIONS MAY VARY FROM THOSE SHOWN ON THE PLANS. THE CONTRACTOR SHALL VERIFY EXISTING CONDITIONS AND ADJUST WORK PLAN ACCORDINGLY PRIOR TO BEGINNING CONSTRUCTION. 8. ALL CONSTRUCTION AND MATERIALS SHALL CONFORM TO WSDOT 2014 STANDARD SPECIFICATIONS, SUPPLEMENTAL SPECIFICATIONS, AND WSDOT STANDARD PLANS (LATEST EDITIONS) UNLESS OTHERWISE NOTED. SYMBOL LEGEND EXISTING PROPOSED 67+00 ALIGNMENT CURB RAMP DRIVEWAY APPROACH RETAINING WALL CONCRETE BARRIER FENCE X— X— —X— -X—X X X DITCH SIGN • MAILBOX MIT 513, TREE W HEDGE LINE SAWCUT — SAW SILT FENCE - SF — SF — HIGH VISIBILITY FENCE - HVF — HVF — CATCH BASIN FILTER SURVEY CONTROL AND RIGHT OF WAY a CONSTRUCTION EASEMENT SURVEY CONTROL 0 EXISTING 8 PROPOSED COINCIDENT RIGHT OF WAY Q DETAIL NUMBER XXX-1 SHEET NUMBER EXISTING PROPOSED UTILITIES BURIED POWER - BP — — BP — BP BP OVERHEAD POWER - OP — — OP — OP OP BURIED TELEPHONE - BT — — BT — BT BT OVERHEAD TELEPHONE - OT — — OT OT OT WATER LINE - W W yATIRR METER - VIAT VALVE!<'s, $ HYDRANT WATER VAULT 4 <v • I OD c GAS LINE G G G GAS VALVE F0 SANITARY SEWER - S — — S — — S S S SANITARY SEWER MH STORM SEWER - ST — — ST ST ST UNDERDRAIN - UD — — UD UD UD CULVERT L STORM CATCH BASIN Ei n r STORM MANHOLE SIGNAL POLE UTILITY POLE GUY ANCHOR LUMINAIRE (TIMBER) LUMINAIRE (STEEL) SIGNALLIGHTING HAND HOLE POWER VAULT 1-- T� COMMUNICATIONS VAULT [C] TELEPHONE PEDESTAL dTP L L L PUBLIC WORKS DEPT. -I€FiGINEERIiNGi-STREE iS-iiliATEII-"S Eli-P INKS-BUIi.DINGi- w dab dd KRW MGI eel ere RIM cH2m: CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III GENERAL INFORMATION, LEGEND, AND NOTES 2� 89 Bono GE-2 l scale T REFERENCES: 1. KING COUNTY ASSESSOR'S MAP, SE 22-23-04 2. KING COUNTY ASSESSOR'S MAP, SW 22-23-04 3. KING COUNTY ASSESSOR'S MAP, NE 27-23-04 4. KING COUNTY ASSESSOR'S MAP, NW 27-23-04 5. RECORD OF SURVEY, VOL 018/122, REC. NO. 7905219005 6. RECORD OF SURVEY, VOL 019/198, REC. NO. 7908019002 7. RECORD OF SURVEY, VOL 022/228, REC. NO. 8003059003 8. RECORD OF SURVEY, VOL 030/122, REC. NO. 8201219008 9. RECORD OF SURVEY, VOL 047/200, REC. NO. 8512139025 10. RECORD OF SURVEY, VOL 053/268, REC. NO. 8702059004 11. RECORD OF SURVEY, VOL 054/189, REC. NO. 8703279004 12. RECORD OF SURVEY, VOL 065/088, REC. NO. 8903279001 13. RECORD OF SURVEY, VOL 108/007, REC. NO. 9602299012 14. RECORD OF SURVEY, VOL 117/184, REC. NO. 9710139017 15. RECORD OF SURVEY, VOL 122/294, REC. NO. 9807069012 16. RECORD OF SURVEY, VOL 140/117, REC. NO. 20000920900016 17. RECORD OF SURVEY, VOL 147/045, REC. NO. 20010820900025 18. RECORD OF SURVEY, VOL 156/274, REC. NO. 20021213900007 19. RECORD OF SURVEY, VOL 191/039, REC. NO. 20050801900031 20. RECORD OF SURVEY, VOL 205/251, REC. NO. 20060531900016 21. RECORD OF SURVEY, VOL 271/050, REC. NO. 20100427900001 22. RECORD OF SURVEY, VOL 281/175, REC. NO. 20110707900002 23. PLAT OF SUNNYDALE GARDENS DIV. NO. 1, VOL 025/050 46f60 NW 'A SEC. 27 FND MIC 2" BRASS CAP IN CONC MON 50+00 N 01.07'57" E 400.00 NE IA SEC. 27 FND MIC 2" BRASS CAP IN CONC MON Nr 1SH109LS SW 'A SEC. 22 CH107 � I T.23N.R.4E. W.M. CH108 FND MIC 2" BRASS CAP IN 4X4 CONC MON CH110 N 01°05'59" E 654.02 SE V. SEC. 22 1LS H1891 'S -r • s. L ♦ ♦ ♦ ♦ CH106 42ND AVE S. ♦♦ gOtIM '42ND' LINE DESCRIPTION STATION NORTHING EASTING P O B 46+00.08 170628.719 1282261.887 PI 50+00.08 171028.641 1282269.793 PI 56+54.10 171682.544 1282282.345 PI 73+04.07 173332.211 12 82 313.8 56 POE 76+52.58 173680.657 1282320.512 HORIZONTAL AND VERTICAL CONTROL POINT NO. NORTHING EASTING ELEVATION DESCRIPTION CH101 173372.548 1282290.601 234.40 SET SCRIBE IN CONC. WALK, NW CORNER OF 42ND AVE & SOUTHCENTER BLVD, 7' N. OF HAND. RAMP, 5' W. OF CURB CH102 172838.156 1282319.144 220.74 SET PK NAIL W/ WASHER, 1'W. OF EAST EOP FOR 42ND AVE, 2' S. OF CL FOR ELEVATED LIGHT RAIL LINE CH105 173044.908 1282329.305 217.03 SET PK NAIL, 2'W. OF EAST EOP FOR 42ND AVE, 12' S. OF CL FOR GILMAN CREEK CH106 171744.543 1282269.183 341.10 SET PK NAIL, 58' NORTH OF 158TH ST, WEST SIDE OF 42ND AVE CH107 171058.450 1282254.887 417.28 SET PK NAIL W/ WASHER, NW CORNER OF S. 160TH ST & 42ND AVE CI-I108 171682.544 1282282.345 345.58 FND 2" BC IN 4" SQ CONC MON, SET IN CASE, CL INTX FOR 42ND AVE & S. 158TH ST CH109 171803.290 1282301.727 336.23 SET PK NAIL, EAST EOP FOR 42ND AVE, 22' S. OF CL FOR DRIVEWAY TO HOUSE @ 15654 42ND AVE CH110 171044.224 1282326.360 419.72 SET PK NAIL, 16' N. & 54' E. OF CL INTX FOR 42ND AVE & S. 160TH ST. CH111 172453.030 1282310.169 254.74 SET PK NAIL, E. SIDE OF 42ND AVE, 35'NORTH OF CL FOR DWAY TO HOUSE @ 15458 42ND AVE. CHI12 172970.779 1282292.487 218.23 SET PK NAIL ALONG WEST SIDE OF 42ND AVE, 44' SOUTH OF CREEK GPS17518-261 173286.133 1283696.977 184.05 FND WSDOT BC, SET IN CASE & COVER, ALONG N. EOP OF W-BOUND SR 518 GPS17518-262 172473.382 1284929.612 133.24 FND WSDOT BC, SET IN CONC. WALK, NE SIDE OF 51ST ST BRIDGE OVER SR 518 CH109 N 01°05'39" E 1649.97 • r- 65t00 i. \ \ \ O \ \ G...A \ \ 'Z \ \ <' \ \ FND MIC 4" BRASS CAP \ 2, IN 4" CONC MON ♦1CH112- • \ FND MIC REBAR W/ 2W"ALUM CAP CH111 ♦♦ ♦ SURVEY CONTROL NOTES: 1. HORIZONTAL DATUM IS NAD 83/91. ANY HORIZONTAL COORDINATES SHOWN HEREIN ARE WASHINGTON STATE PLANE COORDINATES SYSTEM, NORTH ZONE, U.S. SURVEY FEET. VERTICAL DATUM IS NAVD88, FEET. 2. STATIONS AND OFFSETS FROM THE CONSTRUCTION CENTERLINE TO THE CALULATED EXISTING R/W CENTERLINE, IF ANY, AND BEARINGS AND DISTANCES ALONG LINEAR ELEMENTS ARE SHOWN ON THE INDIVIDUAL SHEETS, WHILE ANY NEEDED CURVE INFORMATION IS SHOWN IN THE TABLES ON THIS SHEET. CH102 CH105 ♦ 3. IT WILL BE THE RESPONSIBILITY OF THE CONTRACTOR TO PRESERVE ALL EXISTING RIGHT OF WAY MONUMENTATION, AS SHOWN ON THE INDIVIDUAL SHEETS. 4. BASIS OF BEARING, CL FOR 42ND AVE S, BETWEEN FND MIC AT INTX FOR S. 160TH ST AND FND MIC AT INTX FOR S. 158TH ST, N 01°05'59" E. 5. BASIS OF POSITION, 2" BRASS CAP IN CONCRETE MONUMENT CASE AND COVER, SOUTH 1/4 CORNER, SECTION 22 T. 23 N. R. 4 E., W.M. ♦ ♦ ♦ • • • AIM LEGEND CH101 15f03--3€y52 N 01°05'40" E 348.51 to FND MIC REBAR W/ 2;4"ALUM CAP FND MIC REBAR W/ 2A"ALUM CAP 0 150 300 SCALE IN FEET CALC'D FOUND RIGHT OF WAY (EXISTING) PROPERTY LINE (EXISTING) CENTERLINE (EXISTING) SECTION LINE QUARTER SECTION LINE SECTION CORNER QUARTER CORNER SECTION CENTER PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- by de. designed KRW .GJ poi ens RJM wait field bk- CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III SURVEY CONTROL NOTES AND ALIGNMENT DATA TABLES date revisions fde scale 1 T L 3, 89 , no SV-1 nlnon &RR 2 EROSION / SEDIMENTATION CONTROL - PLAN NOTES GENERAL REQUIREMENTS 1. THE ESC FACILITIES SHOWN ON THIS PLAN MUST BE CONSTRUCTED PRIOR TO OR IN CONJUNCTION WITH ALL CLEARING AND GRADING ACTIVITIES IN SUCH A MANNER AS TO ENSURE THAT SEDIMENT- LADEN WATER DOES NOT ENTER THE DRAINAGE SYSTEM OR VIOLATE APPLICABLE WATER QUALITY STANDARDS. WHEREVER POSSIBLE, MAINTAIN NATURAL VEGETATION FOR SILT CONTROL. 2. CONSTRUCTION STORM WATER POLLUTION PLAN (CSWPPP) PREPARATION: CONTRACTOR SHALL PREPARE A CSWPP TO REFLECT THE ANTICIPATED CONSTRUCTION METHOD, SCHEDULE, AND SITE CONDITIONS AND SUBMIT A CSWPPP TO THE CITY. NO EARTH DISTURBING ACTIVITY SHALL OCCUR PRIOR APPROVAL OF THIS PLAN. THE CSWPPP SHALL BE PREPARED IN ACCORDANCE WITH THE DEPARTMENT OF ECOLOGY'S GENERAL PERMIT FOR CONSTRUCTION ACTIVITIES (GENERAL PERMIT), AND ADDITIONAL REQUIREMENTS IN THE PLANS, SPECIAL PROVISIONS, AND PERMIT CONDITIONS. 3. THE ESC FACILITIES SHOWN ON THIS PLAN ARE THE MINIMUM REQUIREMENTS FOR ANTICIPATED SITE CONDITIONS. DURING THE CONSTRUCTION PERIOD, THESE ESC FACILITIES SHALL BE UPGRADED (E.G., ADDITIONAL SUMPS, RELOCATION OF DITCHES AND SILT FENCES, ETC.) AS NEEDED FOR UNEXPECTED STORM EVENTS. ADDITIONALLY, MORE ESC FACILITIES MAY BE REQUIRED TO ENSURE COMPLETE SILTATION CONTROL. THEREFORE, DURING THE COURSE OF CONSTRUCTION IT SHALL BE THE OBLIGATION AND RESPONSIBILITY OF THE CONTRACTOR TO ADDRESS ANY NEW CONDITIONS THAT MAY BE CREATED BY HIS ACTIVITIES AND TO PROVIDE ADDITIONAL FACILITIES OVER AND ABOVE THE MINIMUM REQUIREMENTS AS MAY BE NEEDED. 4. THE ESC FACILITIES SHALL BE INSPECTED BY THE PERMITTEE/CONTRACTOR DAILY DURING NON -RAINFALL PERIODS, EVERY HOUR (WORKING HOURS) DURING A RAINFALL EVENT EVERY EIGHT HOURS (NON -WORKING HOURS), AND AT THE END OF EVERY RAINFALL, AND MAINTAINED AS NECESSARY TO ENSURE THEIR CONTINUED FUNCTIONING. IN ADDITION, TEMPORARY SILTATION PONDS AND ALL TEMPORARY SILTATION CONTROLS SHALL BE MAINTAINED IN A SATISFACTORY CONDITION UNTIL SUCH TIME THAT CLEARING AND/OR CONSTRUCTION IS COMPLETED, PERMANENT DRAINAGE FACILITIES ARE OPERATIONAL, AND THE POTENTIAL FOR EROSION HAS PASSED. WRITTEN RECORDS SHALL BE KEPT DOCUMENTING THE REVIEWS OF THE ESC FACILITIES. 5. THE ESC FACILITIES ON INACTIVE SITES SHALL BE INSPECTED AND MAINTAINED A MINIMUM OF ONCE A MONTH OR WTHIN 48 HOURS FOLLOWING A STORM EVENT. 6. THE ENGINEER HAS THE AUTHORITY TO HALT CONSTRUCTION IF EROSION CONTROLS ARE NOT MAINTAINED PROPERLY OR IF A VIOLATION HAS NOT BEEN CORRECTED. THE CONTRACTOR SHALL BEAR ALL RISK AND ALL COSTS OF ANY WORK DELAYS CAUSED BY THESE ACTIONS. 7. THE CONTRACTOR SHALL MONITOR AND REPORT THE STORM WATER DISCHARGE IN ACCORDANCE WITH THE GENERAL PERMIT. 8. FOR TURBIDITY NONCOMPLIANCE ISSUES, THE CONTRACTOR SHALL CONTACT DEPARTMENT OF ECOLOGY WATER QUALITY MANAGER. FOR SPILL OF IMMEDIATE DANGER TO LIFE AND HEALTH, THE CONTRACTOR SHALL CONTACT DEPARTMENT OF ECOLOGY HOT LINE (425-649-7000). BMPs INSTALLATION, MAINTENANCE, AND DISCHARGES 1. INLET PROTECTION SHALL BE INSTALLED IN ANY ROAD DRAINAGE SYSTEM INLETS, EXISTING OR NEWLY INSTALLED, WHICH ARE LIKELY TO RECEIVE RUNOFF FROM THE DISTURBED AREAS DURING CONSTRUCTION. INLET PROTECTION SHOWN ON THE TESC PLANS ARE APPROXIMATE LOCATIONS. THE CONTRACTOR SHALL ADD INLET PROTECTION AS NECESSARY TO ALL CATCH BASINS THAT RECEIVE STORM WATER RUNOFF WITHIN THE PROJECT AREA AND THAT MAY OR MAY NOT BE SHOWN ON THE TESC PLANS. 2. AT NO TIME SHALL MORE THAN 1 FT. OF SEDIMENT BE ALLOWED TO ACCUMULATE WTHIN A CATCH BASIN. ALL CATCH BASINS AND CONVEYANCE LINES SHALL BE CLEANED PRIOR TO PAVING. THE CLEANING OPERATION SHALL NOT FLUSH SEDIMENT -LADEN WATER INTO THE DOWNSTREAM SYSTEM. 3. ALL DENUDED SOILS MUST BE STABILIZED WITH AN APPROVED TESC METHOD (E.G. SEEDING, MULCHING, PLASTIC COVERING, CRUSHED ROCK) WITHIN THE FOLLOWING TIMELINES: A. MAY 1 TO SEPTEMBER 30 - SOILS MUST BE STABILIZED WTHIN 7 DAYS OF GRADING. B. OCTOBER 1 TO APRIL 30 - SOILS MUST BE STABILIZED WITHIN 2 DAYS OF GRADING. C. STABILIZE SOILS AT THE END OF THE WORKDAY PRIOR TO A WEEKEND, HOLIDAY, OR PREDICTED RAIN EVENT. 4. WHERE SEEDING FOR TEMPORARY EROSION CONTROL IS REQUIRED, FAST GERMINATING GRASSES SHALL BE APPLIED AT AN APPROPRIATE RATE (EXAMPLE: ANNUAL OR PERENNIAL RYE APPLIED AT APPROXIMATELY 80 POUNDS PER ACRE). 5. WHERE STRAW MULCH IS REQUIRED FOR TEMPORARY EROSION CONTROL, IT SHALL BE APPLIED AT A MINIMUM THICKNESS OF 2". 6. ALL WORK AND MATERIALS SHALL BE IN ACCORDANCE WITH CITY OF TUKWILA STANDARDS AND SPECIFICATIONS. 7. THE ESC FACILITIES SHALL BE CONSTRUCTED IN ACCORDANCE WITH THE DETAILS ON THE APPROVED PLANS. LOCATIONS MAY BE MOVED TO SUIT FIELD CONDITIONS, SUBJECT TO APPROVAL BY THE ENGINEER AND THE CITY OF TUKWILA INSPECTOR. 8. A COPY OF THE APPROVED EROSION CONTROL PLANS MUST BE ON THE JOB SITE WHENEVER CONSTRUCTION IS IN PROGRESS. 9. CLEARING LIMITS SHALL BE DELINEATED WITH A CLEARING CONTROL FENCE. THE CLEARING CONTROL FENCE SHALL CONSIST OF A 6-FT HIGH CHAIN LINK FENCE ADJACENT TO THE DRIP LINE OF TREES TO BE SAVED, WETLAND OR STREAM BUFFERS, AND SENSITIVE SLOPES. CLEARING CONTROL FENCES ALONG WETLAND OR STREAM BUFFERS OR UPLAND OF SENSITIVE SLOPES SHALL BE ACCOMPANIED BY AN EROSION CONTROL FENCE. IF APPROVED BY THE CITY, A FOUR -FOOT HIGH ORANGE MESH CLEARING CONTROL FENCE MAY BE USED TO DELINEATE CLEARING LIMITS IN ALL OTHER AREAS. 10. OFF -SITE STREETS MUST BE KEPT CLEAN AT ALL TIMES. IF DIRT IS DEPOSITED ON THE PUBLIC STREET SYSTEM, THE STREET SHALL BE IMMEDIATELY CLEANED WITH POWER SWEEPER OR OTHER EQUIPMENT. ALL VEHICLES SHALL LEAVE THE SITE BY WAY OF THE CONSTRUCTION ENTRANCE AND SHALL BE CLEANED OF ALL DIRT THAT WOULD BE DEPOSITED ON THE PUBLIC STREETS. 11. THE HIGH VISIBILITY FENCE SETS THE LIMIT OF THE CONSTRUCTION ZONE FOR THE EQUIPMENT ACCESS, EXCAVATION OF CHANNEL. ALL DISTURBED AREAS WITHIN THE STREAM SHALL BE RESTORED. OTHER DISTURBED AREAS SHALL BE RESTORED IN KIND. CONTRACTOR TO MINIMIZE DISTURBED AREA AS POSSIBLE. 12. IF ANY PART(S) OF THE CLEARING LIMIT BOUNDARY OR TEMPORARY EROSION/ SEDIMENTATION CONTROL PLAN IS/ARE DAMAGED, IT SHALL BE REPAIRED IMMEDIATELY. 13. ALL PROPERTIES ADJACENT TO THE PROJECT SITE SHALL BE PROTECTED FROM SEDIMENT DEPOSITION AND RUNOFF. 14. DO NOT FLUSH CONCRETE BY-PRODUCTS INTO THE STORM DRAINAGE SYSTEM. IF EXPOSED AGGREGATE IS FLUSHED INTO THE STORM SYSTEM, IT COULD MEAN RE -CLEANING THE ENTIRE DOWNSTREAM STORM SYSTEM, OR POSSIBLY RE-LAYING THE STORM LINE. BMPs INSTALLATION, MAINTENANCE, AND DISCHARGES (CONTINUED) 15. THE CONTRACTOR SHALL NOT DISCHARGE TURBID WATER GENERATED FROM CONSTRUCTION ACTIVITIES, DIRECTLY TO ANY STREAMS, STORM WATER SYSTEM INLETS, OR DRAINAGE DITCHES IN ACCORDANCE WITH THE GENERAL PERMIT. 16. THE CONTRACTOR SHALL NOT DISCHARGE ANY CLEANING SOLVENTS OR CHEMICALS UTILIZED FOR TOOL OR EQUIPMENT CLEANING TO THE GROUND. REFUELING OF EQUIPMENT SHALL BE CONDUCTED AWAY FROM THE DRAINAGE FACILITIES AND DONE IN SUCH A MANNER AS TO PREVENT SPILLS FROM ENTERING THE GROUNDWATER OR WATER BODIES (INCLUDING WETLANDS). SPILLS SHOULD BE PREVENTED FROM HITTING THE GROUND PER CSWPPP. 17. THE CONTRACTOR SHALL SET ASIDE A SEPARATE AREA, FOR THE WASH -OUT OF CONSTRUCTION EQUIPMENT AND TOOLS. SEE CSWPPP PLANS FOR MORE DETAILS FOR CLEANING AND WASHING OF EQUIPMENT OR TOOLS THAT HAVE OIL, CONCRETE OR OTHER HAZARDOUS MATERIAL. 18. THE CONTRACTOR SHALL PROPERLY DISPOSE OF ALL CONSTRUCTION DEBRIS IN AN APPROVED AND PERMITTED LANDFILL FACILITY. 19. CONTRACTOR SHALL INSTALL ADEQUATELY SIZED PUMPS WITH FLOATING VALVES TO CONVEY WATER TO DESIGNATED DOWNSTREAM LOCATION. 20. PROVIDE TEMPORARY CURB TO PREVENT RUNOFF FLOWS FROM ENTERING EXCAVATED AREAS. 21. FOR TEMPORARY WATER BYPASS SYSTEM AT GILLIAM CREEK, SEE SPECIAL PROVISION SECTION 8-30. 22. CONTRACTOR SHALL VERIFY THE FEASIBILITY AND SEEK APPROVAL FROM VAL VIEW UTILITY DISTRICT TO DISCHARGE ANY CONSTRUCTION RUNOFF TO THE SANITARY SEWER PRIOR TO DISCHARGE OF ANY CONSTRUCTION RUNOFF. 23. THE TEMPORARY ENERGY DISSIPATOR IN THE SEDIMENT POND SHALL BE REMOVED AT THE END OF THE PROJECT. ACCUMULATED SEDIMENT SHALL BE REMOVED AS NEEDED. SEQUENCE OF CONSTRUCTION THE TYPICAL CONSTRUCTION SEQUENCE SHALL BE AS FOLLOWS: A. CONDUCT PRE -CONSTRUCTION MEETING. B. FLAG OR FENCE CLEARING LIMITS. C. POST SIGN WITH NAME AND PHONE NUMBER OF TESC SUPERVISOR. D. INSTALL CATCH BASIN PROTECTION. E. INSTALL PERIMETER PROTECTION (SILT FENCE, BRUSH BARRIER, ETC.). F. CONSTRUCT SEDIMENT PONDS AND TRAPS. G. CONSTRUCT SURFACE WATER CONTROLS (TEMPORARY CURB, DRAIN PIPES, & PUMPS, ETC) SIMULTANEOUSLY WITH CLEARING AND GRADING FOR PROJECT DEVELOPMENT. H. MAINTAIN EROSION CONTROL MEASURES IN ACCORDANCE WITH PLANS AND MANUFACTURER'S RECOMMENDATIONS. I. RELOCATE EROSION CONTROL MEASURES OR INSTALL NEW MEASURES SO THAT AS SITE CONDITIONS CHANGE, THE EROSION AND SEDIMENT CONTROL IS ALWAYS IN ACCORDANCE WITH THE CITY TESC MINIMUM REQUIREMENTS. J. COVER ALL AREAS WITHIN THE SPECIFIED TIME FRAME WITH STRAW, WOOD FIBER MULCH, COMPOST, PLASTIC SHEETING, CRUSHED ROCK OR EQUIVALENT. K. SEED OR SOD ANY AREAS TO REMAIN UNWORKED FOR MORE THAN 30 DAYS. L. UPON COMPLETION OF THE PROJECT, ALL DISTURBED AREAS MUST BE STABILIZED AND BEST MANAGEMENT PRACTICES BE APPLIED TO REMOVAL OF CONTROLS IF APPROPRIATE. r r C PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- by designed RC SOT chscksd MGI RJM CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III DEMOLITION AND EROSION CONTROL NOTES 4 89, file no DMN-1 110 EMS recision stele STORMWATER POINT SOURCE 42ND 49+95.00 '15.00' LT 49+00 SAWCUT + 42ND AVE S. s r - 0 42ND 49+55.00 STORMWATER POINT SOURCE 173.0' LT SAWCUT I }1 • I11-: r /0-SF� I ! O I ! I II 50+02.26, 65.5' LT END SAWCUT ENCE REE 5651 FENCE TREE( TRE THE =© + r TREE / •� \ TREE GUARDRAIL /' 42ND 49+95.00, 66.00' RT BEGIN SAWCUT PUBLIC WORKS DEPT. -ENGIN EERING-STREETS-WATER-SEWER-PARKS-BUILDING- • d.. dewed Mean KRW MGJ Pcirr prof dIr field Pk no SF • TREE s REE' MAILBOX TREE TREE © REE • `tea TREE • • 0 MATCH LINE DM-2 CONSTRUCTION NOTES: OINSTALL INLET PROTECTION DO NOT DISTURB OREMOVE EXTRUDED CURB OREMOVE AND SALVAGE OREMOVE 0 REMOVE AND RESET REMOVE AND RESET MAILBOX, SEE NOT 3 OINSTALL BIODEGRADABLE EROSION CONTROL BLANKET LEGEND — SAW — SAWCUT PAVEMENT, FULL DEPTH - SF — SILT FENCE HIGH VISIBILITY FENCE - HVF — TREE PROTECTION FENCE SEE DETAIL ON DWG LA-7 - DP — PUMP DRAIN D DRAIN LINE 0 INLET PROTECTION 'h REMOVE j \/ / \/ REMOVE HMA PAVEMENT REMOVE CEMENT CONCRETE PLANING BITUMINOUS PAVEMENT, SEE DETAIL PVD-1 CLEARING AND GRUBBING EXISTING RIGHT OF WAY CHECK DAM ® SEDIMENT SUMP PST PORTABLE STORAGE TANK NOTES: 1. FOR REMOVAL OF DRAINAGE PIPES AND STRUCTURES, SEE DRAINAGE AND UTILITY PLAN. 2. FOR REMOVAL OF UTILITY POLE, SEE UTILITY UNDERGROUNDING PLAN. 3. FOR TEMPORARY RELOCATION REQUIREMENTS FOR MAILBOXES, REFER TO WSDOT STD SPECIFICATION 8-18. SEE PAVING PLANS FOR FINAL LOCATIONS. MEND CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III DEMOLITION AND EROSION CONTROL PLAN 0 20 40 SCALE IN FEET dele revisions file no DM-1 scale 1'=20' data 212112017 r L rT L DIM-1 42ND 5 w z J 53+78.80, 30.0' LT CONC WALL CONC WALL MAILBOX /./Z/ ' a>; 44.0' RT SAWCUT 41.0' LT SAWCUT 1' 0 0 eWALL WOOD POST WOOD FENCE 53+78.21, 41.39' RT WOOD FENCE MAILBOX ONC BLOCK 41.0' RT SAWCUT 54+80.00 BEGIN SAWCUT EE CONC WAL 34.0' RT SAWCUT 56+12.00 END SAWCUT MAILBO © ENCE CONC WALL 56+19.89 29.2' RT BEGIN( FENCE 56+29.45, 38.6' RT END FENCE FENCE TREE r TREE 116.0' LT SAWCUT TREE 57+08.00 BEGIN SAWCUT TREE JIVE-IivF- -' MAILBOX t, FENCE 57.0' RT SAWCUT TREE 0 v FENCE 56+92.29, 29.5' RT END® FENCE 56+82.77, 39.7' RT BEGIN n FENCE 0 4 1. 0 z A w z J CONSTRUCTION NOTES: O1 INSTALL INLET PROTECTION DO NOT DISTURB 0 REMOVE EXTRUDED CURB 0 REMOVE AND SALVAGE OS REMOVE 0 REMOVE AND RESET O7 REMOVE AND RESET MAILBOX, SEE NOT 3 OINSTALL BIODEGRADABLE EROSION CONTROL BLANKET LEGEND - SAW - SAWCUT PAVEMENT, FULL DEPTH - SF - SILT FENCE HIGH VISIBILITY FENCE - HVF - TREE PROTECTION FENCE SEE DETAIL ON DWG LA-7 DP- PUMP DRAIN D DRAIN LINE 0 INLET PROTECTION •vvvv4vvvA, REMOVE Y �\ REMOVE HMA PAVEMENT REMOVE CEMENT CONCRETE PLANING BITUMINOUS PAVEMENT, SEE DETAIL PVD-1 CLEARING AND GRUBBING EXISTING RIGHT OF WAY CHECK DAM SEDIMENT SUMP PST PORTABLE STORAGE TANK NOTES: 1. FOR REMOVAL OF DRAINAGE PIPES AND STRUCTURES, SEE DRAINAGE AND UTILITY PLAN. 2. FOR REMOVAL OF UTILITY POLE, SEE UTILITY UNDERGROUNDING PLAN. 3. FOR TEMPORARY RELOCATION REQUIREMENTS FOR MAILBOXES, REFER TO WSDOT STD SPECIFICATION 8-18. SEE PAVING PLANS FOR FINAL LOCATIONS. 0 20 40 SCALE IN FEET PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- M 412 MHK 4,4 MGJ RK4 wei 4r CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III DEMOLITION AND EROSION CONTROL PLAN 6 89 Reno DM-2 r7 C t f scale 1'=20' z 0 0 w z J 1- f 42ND 57+83.26. 41.0' LT BEGIN n WOOD FENCE & GATE TREE rr t l TREE r OgrAWIrie ,"#W,A1Z3401/4,4074~, ATA VI - A ON - 41111WINEMIK 37.0' LT STORMWATER POINT SOURCE FENCE 0 42ND 59+62.28, 38.0' LT SAWCUT 0 ADDRESS SIGN 58+00 42ND AVE S. 1 59+00 /r r \ A/WJI \ TREE FENCE 42ND 58+36.00, 37.0' RT SAWCUT 42ND 58+56.00, 37.0' RT SAWCUT 0 0 42ND 58+33.15 31.0' LT END woob FENC & GATE 42ND 58+40.50, 37.0' LT SAWCUT • 56J5 42ND 58+62.12, SAWCUT • BLOCK WALL ROCKERY WALL RVf 0 42ND 58+91.91, 34.0' RT SAWCUT 42ND 60+22.08, 38.0' LT SAWCUT N WOOD FENCE 42ND 61+83.94, 33.0' LT SAWCUT 0 42ND 61+37.23 33.0' LT TREE SAWCUT SIGN TREE $ TREE • • \ 1� .. 1 i%// -#1:* /Y rdiiZfl 61+00 62+00GO7 /7 /34 8' 0 ,/- a STORMWATER POINT SOURCE 60+00 5&4 • 28.0' RT ♦ SAWCUT �\ PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- 2 - kIVE—Ji1[F- BLOCK WALL st M • I4V.S kiVE• c-)f �..' 0 r/ 4� 42ND 60+30.00, 8.00' LT SAWCUT 42ND 60+15.72, 30.53' RT SAWCUT 42ND 59+96.24, 30.00' RT dab SAWCUT designed MHK KRW checked MGI p4e0 RJM wa& M1eM EK no LTRE CTREE 5 TREE 0 z v 2 a w z J 1- f CONSTRUCTION NOTES: C)1 INSTALL INLET PROTECTION 0 DO NOT DISTURB 0 REMOVE EXTRUDED CURB 04 REMOVE AND SALVAGE OS REMOVE 0 REMOVE AND RESET 0 REMOVE AND RESET MAILBOX, SEE NOT 3 OINSTALL BIODEGRADABLE EROSION CONTROL BLANKET LEGEND - SAW — SAWCUT PAVEMENT, FULL DEPTH - sF — SILT FENCE HIGH VISIBILITY FENCE TREE PROTECTION FENCE SEE DETAIL ON DWG LA-7 - DP — PUMP DRAIN - D DRAIN LINE D INLET PROTECTION wwivvmn REMOVE HVF REMOVE HMA PAVEMENT REMOVE CEMENT CONCRETE PLANING BITUMINOUS PAVEMENT, SEE DETAIL PVD-1 CLEARING AND GRUBBING EXISTING RIGHT OF WAY CHECK DAM SEDIMENT SUMP PST PORTABLE STORAGE TANK NOTES: 1. FOR REMOVAL OF DRAINAGE PIPES AND STRUCTURES, SEE DRAINAGE AND UTILITY PLAN. 2. FOR REMOVAL OF UTILITY POLE, SEE UTILITY UNDERGROUNDING PLAN. 3. FOR TEMPORARY RELOCATION REQUIREMENTS FOR MAILBOXES, REFER TO WSDOT STD SPECIFICATION 8-18. SEE PAVING PLANS FOR FINAL LOCATIONS. CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III DEMOLITION AND EROSION CONTROL PLAN 0 20 40 SCALE IN FEET - date revisions 7 fie n0 scale data 89 DM-3 r=2o' vxtn017 4e ;To 43.0' LT SAWCUT BLOCK WA FENC MAILBO 41.0' LT SAWCUT _-►,�� - `►II 4rI //;//i e, :1v 111 aiVF 4o 63+00 /1 //i// /r/ ♦ • BLOCK WALL 63+64.27 41.00' 64+43.94, 35.10' LT SAWCUT ©TR 2 � 1 ! i% BLOCK♦` i o 1 l �_- WALL• �reakatteir °ve, CONCRETE WALL STORMWATER POINT SOURCE • TREE I 63+49.59 47.00' RT BEGIN/ WOOD FENCE MAILBOX TREE 0 0 46 LT WOOD FENCE 1 � FENCE' 64+00 1 "Paw ft 0 WOOD GATE WOOD FENCE 0 64+10.35, 27:58' RT WOOD FENCE END 0 41 • TREE A ♦ 64+75.00, 8.00' LT SAWCUT X/ ti FENCE STO POI '1 FENCE •8 GATE 1. 40.0' RT SAWCUT MWATER T SOURCE 66+00 BRIDGE © COLUMN, TYP ��iaj�;iii-/a�/ill • • ♦• ♦ CONCRETE♦♦ BRIDGE • WALL ♦ COLUMN, ♦♦ TYP ♦ STORMWATER ♦ POINT SOURCE • ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ • CONSTRUCTION NOTES: O1 INSTALL INLET PROTECTION DO NOT DISTURB O3 REMOVE EXTRUDED CURB O4 REMOVE AND SALVAGE OS REMOVE O6 REMOVE AND RESET 0 REMOVE AND RESET MAILBOX, SEE NOT 3 OS INSTALL BIODEGRADABLE EROSION CONTROL BLANKET LEGEND - SAW - SAWCUT PAVEMENT, FULL DEPTH - SF — SILT FENCE HIGH VISIBILITY FENCE - HVF - TREE PROTECTION FENCE SEE DETAIL ON DWG LA-7 - DP — PUMP DRAIN D DRAIN LINE INLET PROTECTION M• REMOVE REMOVE HMA PAVEMENT REMOVE CEMENT CONCRETE PLANING BITUMINOUS PAVEMENT, SEE DETAIL PVD-1 CLEARING AND GRUBBING EXISTING RIGHT OF WAY CHECK DAM SEDIMENT SUMP PST PORTABLE STORAGE TANK NOTES: 1. FOR REMOVAL OF DRAINAGE PIPES AND STRUCTURES, SEE DRAINAGE AND UTILITY PLAN. 2. FOR REMOVAL OF UTILITY POLE, SEE UTILITY UNDERGROUNDING PLAN. 3. FOR TEMPORARY RELOCATION REQUIREMENTS FOR MAILBOXES, REFER TO WSDOT STD SPECIFICATION 8-18. SEE PAVING PLANS FOR FINAL LOCATIONS. f I 0 20 SCALE IN FEET 40 PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- Ode cheakod MGI en].9 RIM dr CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III DEMOLITION AND EROSION CONTROL PLAN 8 89 fife no DM-4 C t r scale 1'=20' 0 z 2 0 MATCH LINE 3 ♦ MAILBOXQ BRIDGE COLUMN, TYP 24.0' LT BRIDGE _ COLUMN, TYP 0G / TREE ,t WOOD FENCE FH BOLLARD 69+00.00 FENCE END SAWCUT PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- TREE REE REE CONC BARRIER 42ND 70+15.04, 80.87' RT END( FENCE M dote TREE SEDIMENT SUMP BYPASS PIPE SYSTEM (OUTFALL) TEMPORARY ROCK PAD designed dem KRW chimed MGJ P^I e'q RJM Pfild< field RIno TREE r r ONC BARRIER ' TREE TREE ROCKERY WALL 42ND 71+16.82 SAWCUT PST TREE CONSTRUCTION NOTES: 0 INSTALL INLET PROTECTION 0 DO NOT DISTURB 0 REMOVE EXTRUDED CURB 0 REMOVE AND SALVAGE OS 0REMOVE REMOVE AND RESET 0 REMOVE AND RESET MAILBOX, SEE NOT 3 OINSTALL BIODEGRADABLE EROSION CONTROL BLANKET LEGEND — SAW — SAWCUT PAVEMENT, FULL DEPTH - SF — SILT FENCE HIGH VISIBILITY FENCE TREE PROTECTION FENCE SEE DETAIL ON DWG LA-7 - DP — PUMP DRAIN - D DRAIN LINE 0 INLET PROTECTION REMOVE - HVF — ♦i♦i / \/ \ y PST REMOVE HMA PAVEMENT REMOVE CEMENT CONCRETE PLANING BITUMINOUS PAVEMENT, SEE DETAILCi PVD-1 CLEARING AND GRUBBING EXISTING RIGHT OF WAY CHECK DAM SEDIMENT SUMP PORTABLE STORAGE TANK NOTES: 1. FOR REMOVAL OF DRAINAGE PIPES AND STRUCTURES, SEE DRAINAGE AND UTILITY PLAN. 2. FOR REMOVAL OF UTILITY POLE, SEE UTILITY UNDERGROUNDING PLAN. 3. FOR TEMPORARY RELOCATION REQUIREMENTS FOR MAILBOXES, REFER TO WSDOT STD SPECIFICATION 8-18. SEE PAVING PLANS FOR FINAL LOCATIONS. 0 20 40 SCALE IN FEET CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III DEMOLITION AND EROSION CONTROL PLAN data revisions 9 89 file no DM-5 scale 1'=20' • r L date 1717017 War VARIES 11'-31' 4" SEE ALTERNATE SECTIONS L1,�L2, L3 AND L6 N NS1 51+65 TO 52+40 53+12 TO 53+50 53+72 TO 56+12 70+85 TO 71+16.82 ALTERNATE SEE SECTIONS VARIES 0' - 3' - — — DRAINAGE DITCH, SEE NOTE 4 ROCKERY WALL WITH FENCE, SEE NOTE 3 50+36 TO 51+65 ALTERNATE SECTION L2 W 16' DRAINAGE FRENCH DRAIN, SEE NOTE 4 2% MIN VARIES VARIES 0'-3' SIDE- PUFFER VVALK 2% LUIVE MAX 57+08 TO 57+35 57+64 TO 69+35 70+05 TO 70+70 SECTION L1 ALTERNATE L1, L3, L4, AND L7 VARIES 14' TO 14.6± 2% 42ND 14' 2% 10 VARIES 11.-26' SEE ALTERNATE SECTIONS R1, R2 AND R5 VARIES VARIES I 5.6'-9 LAND-,1 SIDE- SCAPiIYU VVMLK ZONE 2% MAX 0 50+50 TO 53+00 0 2 69+00 TO 70+15 4" © 6 16' 0 TYPICAL SECTION A FULL DEPTH PAVEMENT VARIES 14' TO 19' 42ND 2% VARIES 14' TO 18.9' ± 51+20 TO 56+12 57+08 TO 57+20 57+85 TO 58+10 58+30 TO 61+85 5 NS NST ©2 \ 62+30 TO 69+55 70+65 TO 71+16.82 4" ALTERNATE SECTION R1 SEE ALTERNATE SECTIONS R1, R5, AND R6 2% MEE VARIES' 0'-3' SIDE- BUFFER WALK ZONE l numum4, 0 0 2" 8' 3' —1 52+40 TO 53+12 SIDE- BUFFE WALK ZONE 2% MAX >a�nmm�m� ALTERNATE SECTION L3 xr W I 16' DRAINAGE DITCH, SEE NOTE 4 ROCKERY WALL WITH FENCE, SEE NOTE 3 8' SIDE- WALK 3' BUFFE ZONE 53+50 TO 53+72 ALTERNATE SECTION L4 O CONSTRUCTION GEOTEXTILE FOR SUBGRADE SEPARATION 53+00 TO 54+80 70+15 TO 71+16.82 TYPICAL SECTION B FULL DEPTH PAVEMENT WITH OVEREXCAVATION 0 0 0 16' 2 VARIES 4 LAND- SCAPING 6 ZONE 12" MIN O O VARIES 6'-8' SIDE- WALK 2% MAX uenuum VARIES LAND- SCAPING ZONE 4" � l m 0 2„ ,4 50+40 TO 51+20 -i ALTERNATE SECTION R2 16' 3' 6' LAND- SIDE- CAPING WALK ZONE 2% MAX 4" 61+85 TO 62+30 ALTERNATE SECTION R3 16' ROCKERY WALL WITH FENCE, SEE NOTE 3 DRAINAGE DITCH, SEE NOTE 4 ROCKERY WALL 2" WITH FENCE, SEE NOTE 3 3' 6' LAND- CAPIN ZONE 2% MAX SIDE- WALK .1nneunmw 0 0 57+20 TO 57+85 58+10 TO 58+30 ALTERNATE SECTION R4 x W 1 1- DRAINAGE FRENCH DRAIN, SEE NOTE 4 DRAINAGE, FRENCH DRAIN, SEE NOTE 4 SEE ALTERNATE SECTIONS L1 AND L5 16' 3' BUFFE ZONE 57+35 TO 57+64 ALTERNATE SECTION L5 VARIES 15.6-16' VARIES 4' 6.6' TO 7' SIDE- WALK 2% MAX 69+35 TO 70+05 AT CULVERT ALTERNATE SECTION L6 RETAINING WALL, SEE NOTE 3 VARIES 123'TO 12.9' 5.5' 2" 14' 42ND 14' 70+70 TO 70+85 ALTERNATE SECTION PAVING CONSTRUCTION OHMA CL. 'A -INCH PG 64-22 O HMA CL. 1-INCH PG 64-22 O CRUSHED SURFACING BASE COURSE 0 CEMENT CONCRETE CURB AND GUTTER, SEE CURB DETAIL PER CITY OF TUKWILA STD PLAN DRAWING NO RS-09. GUTTER CROSS SLOPE REVISED TO BE 2%. OS CEMENT CONCRETE SIDEWALK NOTES: 10 VARIES 8' TO 11' 13' OVERLAY 2% FULL DEPTH 2% SEE ALTERNATE SECTIONS R1, R3, AND R4 :•J,Y:.41__.•+r:J'4'bY"i- il%:;::::Y.•e'.7ir x:L:..• 2" MIN O ** MATCH EXISTING ROADWAY CROSS SLOPE 54+80 TO 56+12 57+08 TO 69+00 TYPICAL SECTION C OVERLAY AND WIDENING FULL DEPTH RIGHT OF CENTERLINE L7 PAVED BUFFER ZONE, SEE DETAIL M PVD-1 SINGLE -SLOPE CONCRETE BARRIER (PRECAST), PER WSDOT STD PLAN C-70.10-00 CRUSHED SURFACING TOP COURSE GRAVEL BORROW LANDSCAPING ZONE, SEE LANDSCAPING PLANS FOR DETAILS 4' 69+55 TO 70+33.50 AT CULVERT ALTERNATE SECTION R5 7' 4' SIDE- WALK 2% MAX 2" 70+33.50 TO 70+65 ALTERNATE SECTION R6 GENERAL NOTES: 1. ROADWAY SECTIONS ARE FOR GENERAL INFORMATION ONLY REGARDING ROADSIDE APPURTANCES SUCH AS SIDEWALKS, CURB AND GUTTER, RETAINING WALLS, ETC. FOR EXACT LOCATIONS, SEE PLAN AND PROFILE SHEETS. 2. 42ND 49+55.00 TO 42ND 50+50.00 AND 42ND 56+12.00 TO 42ND 57+08.00 REFER TO DWGS IG-1 AND IG-2 FOR INTERSECTION GRADING. L 4ei L 3. FOR WALL LOCATIONS, PROFILES, DETAILS AND LIMITS OF FENCE, REFER TO DWGS RT-1 TO RT-6. 4. FOR DRAINAGE DITCH OR FRENCH DRAIN LOCATIONS AND DETAILS, REFER TO DWGS DR-1 TO DR-5 AND DRD-1 TO DRD-2 5. FOR FLOWLINE ELEVATIONS, SEE PAVING PLAN AND PROFILE. 1 PUBLIC WORKS DEPT. -ENGI N EERING-STREETS-WATER-SEWER-PARKS-BUILDING- M die danignd LINK churn ducked Prbi RAI �tr CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III TYPICAL ROADWAY SECTIONS 101J (89 Aleeo RS-1 scale 1'=20' GENERAL NOTES: 1. EXISTING UNDERGROUND UTILITIES ARE SHOWN FOR THE CONVENIENCE OF THE CONTRACTOR ONLY AND ARE BASED ON INFORMATION PROVIDED BY THE UTILITY COMPANIES AND FIELD SURVEY OF EXISTING FEATURES, AND ARE THEREFORE APPROXIMATE. THE CONTRACTOR SHALL VERIFY THE EXACT LOCATION OF ALL UTILITIES PRIOR TO BEGINNING WORK. 2. FOR RETAINING WALL ELEVATIONS AND DETAILS, SEE DWGS RT-1 TO RT-6. 3. CONTRACTOR SHALL BE RESPONSIBLE FOR CLEARLY MARKING SEWER AND WATER APPURTENANCES PRIOR TO PAVING OVER THEM. 4. CLEARING LIMITS SHOWN ON DWGS DM-1 TO DM-5. 5. FOR DRIVEWAY PAVING SECTION DETAILS, SEE 0 PVD-1 6. FOR ALIGNMENT CONTROL DATA, SEE SURVEY CONTROL DWG SV-1. 7. FOR DRAINAGE AND UTILITY PLAN AND PROFILE, SEE DWGS DR-1 TO DR-5. 8. DIMENSIONS ARE TO THE PROPOSED FACE OF CURB UNLESS OTHERWISE NOTED. 9. FOR LANDSCAPING PLAN, SEE DWGS LA-1 TO LA-5. CONSTRUCTION NOTES: 0 CONSTRUCT CONCRETE CURB AND GUTTER PER CITY OF TUKWILA STANDARD PLAN DWG NO. RS-09 CURB DETAIL. GUTTER CROSS SLOPE REVISED TO BE 2%. O2 CONSTRUCT EXTRUDED CURB, TYPE 6, PER WSDOT STANDARD PLAN NO. F-10.42-00. STATION AND OFFSET CALLOUT TO THE FACE OF CURB. O3 CONSTRUCT SINGLE -SLOPE CONCRETE BARRIER (PRECAST), PER WSDOT STANDARD PLAN DWG NO. C-70.10-00. STATION AND OFFSET CALLOUT TO THE CENTER OF BARRIER. 0 INSTALL BLACK VINYL COATED CHAIN LINK FENCE TYPE 4, PER WSDOT STD PLAN L-20.10-02. OS INSTALL MAILBOX SUPPORT TYPE 1 PER WSDOT STD PLAN H-70.10-01. STATION AND OFFSET CALLOUT TO CENTER OF THE POST. O6 INSTALL MAILBOX SUPPORT TYPE 2 PER WSDOT STD PLAN H-70.20-01. STATION AND OFFSET CALLOUT TO THE CENTER OF THE POST. 0 INSTALL FENCE TO MATCH EXISTING. O8 INSTALL GATE TO MATCH EXISTING FENCE. 0 CONSTRUCT AC CURB RAMP, SEE DETAIL %1. PVD-1 10 INSTALL DOUBLE 14' CHAIN LINK GATE, PER WSDOT STD PLAN L-30.10-02. 11 INSTALL BLACK VINYL COATED CHAIN LINK FENCE TYPE 3, PER WSDOT STD PLAN L-20.10-02. 12 RAISING EXISTING BEAM GUARDRAIL, PER WSDOT STD SPECIFICATION SECTION 8-11.3(1)E 13 ADJUST MONUMENT PUBLIC WORKS DEPT. LEGEND 2" HMA CL 1/2" PG 64-22 OVER 4" HMA CL 1" PG 64-22 OVER 6" CSBC 2" HMA CL 1/2" PG 64-22 OVER 4" HMA CL 1" PG 64-22 OVER 6" MIN CSBC AND 12" GRAVEL BORROW AND CONSTRUCTION GEOTEXTILE FOR SUBGRADE SEPARATION LANDSCAPING ZONE, SEE DWGS LA-1 TO LA-5 2" MIN HMA CL 1/2" PG 64-22 FOR OVERLAY, SEE DETAIL i PVD-1 DRIVEWAY, ASPHALT PAVEMENT 4" HMA CL 1/2" PG 64-22 ® ROCKERY WALL -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- GRAVEL DRIVEWAY, 4" CSTC DRIVEWAY, 6" CEMENT CONCRETE PAVEMENT OVER 2" CSBC CEMENT CONCRETE SIDEWALK, SEE CITY OF TUKWILA STD PLAN NO. RS-11 PAVED BUFFER ZONE, SEE DETAIL P CEMENT CONCRETE DRIVEWAY TYPE A, SEE DETAIL PVD-1 RETAINING WALL CEMENT CONCRETE DRIVEWAY ENTRANCE, SEE CITY OF TUKWILA STD PLAN NO. RS-09 CURB RAMP TYPE A, SEE CITY OF TUKWILA STD PLAN NO. RS-12. STATION AND OFFSET CALLOUT TO CENTER OF RAMP LANDING CURB RAMP, TYPE PARALLEL A, SEE WSDOT STD PLAN NO. F-40.12-02. STATION AND OFFSET CALLOUT TO CENTER OF RAMP LANDING. dalo dep./ KRW manna amide fieldbkm c6,2nn! CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III PAVING LEGEND AND NOTES no date revisions 11 89 file no PVN-1 scale r-2o' dale 2/212017 r r 49'00 BEGIN CONSTRUCTION 42ND 49+55.00 MATCH EXIST 440 430 420 410 400 390 380 370 360 0 0 C,42ND 50+00.08 SEE DWG ID-1 FOR INTERSECTION DETAILS MATCH LINE PV-6 160TH ST _J ++. . MATCH LINE PV-6 160TH ST 42ND 50+81.17, 17.00' LT \ 42ND 50+72.84 14.50' LT [WALLSEE NOTE 4 DI RW-1L, SEENGS RT-2 &RT-6 1,s1+ Q0+. ._ 42ND 51+75.00 r1wY1-2 12n+nn \ 42111) Mit+ ++++ � UHON00000HOGLHHHH HHNOmunnu ONIINNHNONNOmiumu uumu m i -0111.ij.. X X. XI-xrS X '®® t Y1 X Y �. YY� .yY xY7 ®A �r 42ND 50+27.00 30.00' RT END @ 42ND 50+54.12, 14.50' RT 42ND 50+56.62 17.00' RT + SEE NOTE 2 40 sr J w 0 -8.09% > v J w 42ND 51+67.00 SEE NOTE-. 37.21' RT PC 16'R ROCKERY WALL 1 P \ RW-1R, SEE DWGS 42ND 51+63.20 RT-1 & RT-5 47.56' RT - I PT it 15854 42ND 51+53.13, 59.41' RT IMATCH EXIST I 42ND 51+69.06, 54.57' RT PT ' 42ND 51+66,85, 71.06'0 MATCH EXIST a .5200 48.00' LT MATCH EXIST 42ND 52+07.00 /DWY1-3 130+00 42ND 53+00.00 *42ND 52+30.00 16.00'RT --fflL� roi NN NIIII.- INNHNHNNHHNNNNNHHNNHNHHHHHHHHHHHHHNHNHNHHNHNNHHNH •3 F -ln 42NU 51+TSZIU, 34.39K I 42ND 51+83.00, 39.56' RT PC 25'R Fey 34'R 475.00' RT ', MATCH EXIST 42ND 51+74.92, 61.57' RT PT FILL #15838 N 0 z N m V cq cn O J w Ly180.00' LEFT FLOWLINE ELEVATION, TYP EXISTING GROUND RIGHT FLOWLINE ELEVATION, TYP PROFILE GRADE in V+ 1- n 0 0 V V M cri IT M r 10 N in -5 -5 t;In c0 m co;co M,M 49+00 50+00 51+00 52+00 53+00 a w z J MATCH LINE PV-2 42ND 53+30 NOTES: 1. FOR GENERAL NOTES AND ADDITIONAL CONSTRUCTION NOTES, SEE DWG PVN-1. 2. SEE DWG IG-1 FOR INTERSECTION GRADING WITHIN THE FULL DEPTH PAVEMENT LIMIT, THE PAVEMENT SECTION SHALL DC THE SAME AS SHOWN IN SECTION OVERLAY PAVEMENT SECTION SHALL REFER TO DETAIL PVD-1 3. FOR CURVE DATA, CURB RAMPS AND CURB RETURN ELEVATIONS, SEE INTERSECTION DETAILS DWG ID-1. 4. REFER TO DWGS RT-1 TO RT-6 FOR LIMITS AND EXACT LOCATION OF FENCE. DRIVEWAY # STATION` OFFSET WIDTH DWY1 - 1 42ND 51+93.20 LT 15' DWY1 - 2 42ND 51+75.00 RT 16' DWY1 - 3 42ND 52+07.00 RT 16' * STATION CALLOUT TO THE CENTER OF THE DRIVEWAY CONSTRUCTION NOTES: O INSTALL MAILBOX SUPPORT TYPE 2 PER WSDOT STD. PLAN H-70.20-01. STATION AND OFFSET CALLOUT TO THE CENTER OF THE POST. 12 RAISING EXISTING BEAM GUARDRAIL, PER WSDOT STD SPECIFICATION SECTION 8-11.3(1)E 13 ADJUST MONUMENT LEGEND '//i 2" HMA CL 1/2" PG 64-22 OVER 4" HMA CL 1" PG 64-22 OVER 6" CSBC 2" HMA CL 1/2" PG 64-22 OVER 4" HMA CL 1" PG 64-22 OVER 6" MIN CSBC AND 12" GRAVEL BORROW AND CONSTRUCTION GEOTEXTILE FOR SUBGRADE SEPARATION LANDSCAPING ZONE, SEE DWGS LA-1 TO LA-5 2" MIN HMA CL 1/2" PG 64-22 FOR OVERLAY, SEE DETAIL PVD-1 DRIVEWAY, ASPHALT PAVEMENT 4" HMA CL 1/2" PG 64-22 ® ROCKERY WALL 0;13 GRAVEL DRIVEWAY, 4" CSTC DRIVEWAY, 6" CEMENT CONCRETE PAVEMENT OVER 2" CSBC CEMENT CONCRETE SIDEWALK, SEE CITY OF TUKWILA STD PLAN NO. RS-11 PAVED BUFFER ZONE, SEE DETAIL PVD-1 CEMENT CONCRETE DRIVEWAY TYPE A, SEE DETAIL n PVD-1 RETAINING WALL CEMENT CONCRETE DRIVEWAY ENTRANCE, SEE CITY OF TUKWILA STD PLAN NO. RS-09 CURB RAMP TYPE A, SEE CITY OF TUKWILA STD PLAN NO. RS-12. STATION AND OFFSET CALLOUT TO CENTER OF RAMP LANDING CURB RAMP, TYPE PARALLEL A, SEE WSDOT STD PLAN NO. F-40.12-02. STATION AND OFFSET CALLOUT TO CENTER OF RAMP LANDING. 0 10 20 VERTICAL SCALE IN FEET 0 20 40 HORIZONTAL SCALE IN FEET 1 L r r- C L PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- 1 tele drown RAA dir CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III PAVING PLAN AND PROFILE 12 89 Ile rw PV-1 t scale 1'=20' 400 390 380 370 360 350 340 330 320 42ND 53+88.44 DWY2-2 220+00.00Q SEE NOTE 4 WALL RW-2L, SEE DWGS RT-3 & RT-6 M -CO - 0. MATCH LINE Ih 0 z MATCH LINE P FILL 41.00' LT MATCH EXIST 42ND 53+62.42= DWY2-3 230+00.00 44.00' RT MATCH EXIST 42ND 53+44.00, 0 16.OQ' RT 32.00' LT MATCH EXIST DWY2-4 240-00.00 41.00' RT MATCH EXIST SEE 0 PVD-1 42ND 53+78.02, 26.73' RT BEGIN 42ND 53+78.21, 41.39' RT END 46.00' LT MATCH EXIS oat �itHHH#�fl#Hf1�IF-{�-+i /2/./7/./1/ 13 42ND 56+54.10 42ND 56+16.42 14.50' LT 42NO,;AW+O:+ 2NU4+80.00 42ND 55+66.82 DWY2-7 270+00.00 34.00' RT MATCH EXIST 5808 N 042ND 55+86 00 16.00' RT 42ND 56+16.43, 14.50' RT 42ND 56+19.89 29.24' RT BEGIN 42ND 56+25.00, 29.39' RT -4 MATCH LINE PV-6 158TH ST (W) ` i W 4 f ++++I' 42ND 57+14.64 14.50' LT +57 p0 SEE DWG ID-2 FOR r INTERSECTION DETAILS #4066 42ND 57+17.14 17.D0' LT 34.00' LT MATCH EXIST\ P1tt M NOTES: 1. FOR GENERAL NOTES AND ADDITIONAL CONSTRUCTION NOTES, SEE DWG PVN-1. 2. SEE DWG IG-2 FOR INTERSECTION GRADING WITHIN THE FULL DEPTH PAVEMENT LIMIT, THE PAVEMENT /SECTION SHALL BE THE SAME AS SHOWN IN SECTION 3. FOR CURVE DATA, CURB RAMPS AND CURB RETURN "to' 0 ELEVATIONS, SEE INTERSECTION DETAILS DWG ID-1. N + 4. REFER TO DWGS RT-1 TO RT-6 FOR LIMITS AND EXACT 0 /i//// /a Z_ Hnnni4IIII111111111n11121 M MU I1I1II l :i- t I. ;;, a. =F CUTI- --- CUT 1 42Np 57+17 Ob 16 00' RT 42ND 57+15.64, 17.00' RT 42ND 57+13.14, 14.50' RT 42ND 56+92.29 29.48' RT ENDO s •. I I 42ND 56+84 80 42ND 56+82.84, 31.629 23' RT 42ND 42ND 56+29.45 42ND 56+82.77 39.72' RT 38.63' T BEGIN i END( MATCH LINE PV-6 158TH ST(E) SEE NOTE 2 1565 N n N a g M w L=300.00' EXISTING GROUND LEFT FLOWLINE ELEVATION, TYP M M V. 01 01 p PROFILE GRADE 0 tN a -9. IA w to to M J -9.05% .> M 01 l w N J w 0 N n N 9.04% • > 0' 0 0 0 tea a O N 1Nn + d) 40 v -7.95% 0 J w RIGHT FLOWLINE ELEVATION, TYP v' t0.10 f0 10 Mto , 1.11 m m M M en es in Ill M 11 M'in • n In M ID CO v le CO tO N M O tto 0. -6.83% > J w 0 O N 0 7.44ej, > !H J w O 'ng in M 0 -7,71% > w aj O 0) M n • n in -8.42% >, w - -.. . -8.64% > 01! vs N:n O:O .4, I wit ti! 10'0 05!0) M;M MGM 40 M 1+1 J Ili 4a M1M 54+00 55+00 PUBLIC WORKS DEPT. -E NGIN€EKING-STRE EEYS-WATLU-SEWER-PARKS-BUILDING- dais KRW MGI RJM raj dlr AMdek no 56+00 CAA2411t 57+00 MATCH LINE PV-3 42ND 57+80 DRIVEWAY# STATION' OFFSET WIDTH DWY2 - 2 42ND 53+88.44 LT 20' DWY2 - 3 42ND 53+62.42 RT 20' DWY2 - 4 42ND 54+11.43 RT 27' DWY2 - 5 42ND 54+63.24 LT 15' DWY2 - 6 42ND 55+24.10 LT 15' DWY2 - 7 42ND 55+66.82 RT 18' DWY2 - 8 42ND 57+76.26 LT 12' ' STATION CALLOUT TO THE CENTER OF THE DRIVEWAY CONSTRUCTION NOTES: OS INSTALL MAILBOX SUPPORT TYPE 1 PER WSDOT STD PLAN H-70.10-01. STATION AND OFFSET CALLOUT TO CENTER OF THE POST. 0 INSTALL FENCE TO MATCH EXISTING. 0 ADJUST MONUMENT LEGEND //A 2" HMA CL 1/2" PG 64-22 OVER 4" HMA CL 1" PG 64-22 OVER 6" CSBC 2" HMA CL 1/2" PG 64-22 OVER 4" HMA CL 1" PG 64-22 OVER 6" MIN CSBC AND 12" GRAVEL BORROW AND CONSTRUCTION GEOTEXTILE FOR SUBGRADE SEPARATION LANDSCAPING ZONE, SEE DWGS LA-1 TO LA-5 2" MIN HMA CL 1/2" PG 64-22 FOR OVERLAY, SEE DETAIL PVD-1 DRIVEWAY, ASPHALT PAVEMENT 4" HMA CL 1/2" PG 64-22 ® ROCKERY WALL a13 GRAVEL DRIVEWAY, 4" CSTC DRIVEWAY, 6" CEMENT CONCRETE PAVEMENT OVER 2" CSBC CEMENT CONCRETE SIDEWALK, SEE CITY OF TUKWILA STD PLAN NO. RS-11 PAVED BUFFER ZONE, SEE DETAIL PVD-1 CEMENT CONCRETE DRIVEWAY TYPE A, SEE DETAIL PVD-1 RETAINING WALL CEMENT CONCRETE DRIVEWAY ENTRANCE, SEE CITY OF TUKWILA STD PLAN NO. RS-09 CURB RAMP TYPE A, SEE CITY OF TUKWILA STD PLAN NO. RS-12. STATION AND OFFSET CALLOUT TO CENTER OF RAMP LANDING CURB RAMP, TYPE PARALLEL A, SEE WSDOT STD PLAN NO. F-40.12-02. STATION AND OFFSET CALLOUT TO CENTER OF RAMP LANDING. 0 10 VERTICAL SCALE IN FEET CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III PAVING PLAN AND PROFILE 20 0 20 40 HORIZONTAL SCALE IN FEET no data reisions 13 file no scale data 89 PV-2 1'=20' 2/212017 rT 1 r 36.00' RT 42ND 58+46.10. 28.48' LT 42ND 58+40.50, 37.00' LT 42ND 57+83.26, 41.00' LT ilN III 42ND 57+83.26, 31.00' LT END BE FILL 42ND 58+62.13710'LT 5,,45 D© 42ND 58+66 37.00'LT MATOH EXIST, SEE Pvf o-� 1tl IHHHHHHMINHIIIIIMMINVIIHtltltltlfHH1- MATCH EXIST 280 270 IL 42ND 58+35.14 27.61' RT 42ND 58+35.65 END i 37.00' RT e 0 0 an O N wi J 10 ',..2,1 CO W "9.46%> W -10.39% > 37.00' RT MATCH EXIST 58+00 LEFT FLOWLINE ELEVATION, TYP 03 V J W -11.31 % > -10.440% 42ND 58+66 0 32.74' LT 0. 25.00' LT )7.0$; 34.00' RT MATCH EXIST 42ND 58+76.00 16.00' RT RIGHT FLOWLINE ELEVATION, TYP 59+00 Q 424D 59+91.64 DWY3-6 360+00 -11.6g% - FILL SEE DWG DVD-1 FOR ENLARGEMENT 42ND 60+30.00, 8.00' LT 28.00' RT MATCH EXIST PROFILE GRADE J w n N 2.78% ifs Sri in J w 30.00' RT MATCH EXIST 42ND 59+87.00, 16.00' RT FILL SEE DWG DVD-1 FOR ENLARGEMENT 42ND 61+29.25, 22.00' LT END TAPER \1 42ND 61+19.25, .UU' L I BEGIN TAPER FILL YNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNIINNI -13.1g% 60+00 N 0 3 w -13,18% > EXISTING GROUND PUBLIC WORKS DEPT. -ENGI N EERI NG-STREETS-WATER-SEWER-PARKS-BU I LDI NG- M 3 0 J W Cb is%N 0 0 M+ dab NOW damn chackdi MGI PW •q AJM 0 42ND 61+19.25, 17.00' LT 42ND 61+21.75, 14.50' LT 0 4 W t0 N '138/�> 3. 61+00 • - r.-4- r+-4- r+� r 42ND 61+80.25, 22.00' LT NOTES: BEIN TAPER 1. FOR GENERAL NOTES AND ADDITIONAL CONSTRUCTION 42ND 61+90.25, 25.00' LT NOTES, SEE DWG PVN-1. END TAPER 2. REFER TO DWGS RT-1 TO RT-6 FOR LIMITS AND EXACT LOCATION OF FENCE. I ' 1 AL b /iY/i// 1/// -+ UNNNNNNNNNNNNNNNNNNNNNNNNNNIINNNNI III1UHNNNRNNNNNRNNNNNNII + 6%> C42N61+87.75. 14.50' LT ui N J W ODD O+ 31. 00'. 001 N 42ND 61+90.25 17.00' LT .o 13.73% > cl1z4#14: A CO '13.71%>_W 0 0 N -13.72% > 0+ J w 62+00 0 WALL RW-3R, SEE DWGS RT-3 & RT-6 SEE NOTE 2 13 8%> -4 42ND 62+30 MATCH LINE DRIVEWAY# STATION' OFFSET WIDTH DWY3 - 1 42ND 57+96.53 RT 14' DWY3 - 2 42ND 58+43.50 RT 15' DWY3 - 3 42ND 58+56.10 LT 20' DWY3 - 4 42ND 59+06.44 RT 20' DWY3 - 5 42ND 59+60.54 RT 20' DWY3 - 6 42ND 59+91.64 LT 34' DWY3 - 7 42ND 60+05.93 RT 20' DWY3 - 8 42ND 61+59.25 LT 30' ' STATION CALLOUT TO THE CENTER OF THE DRIVEWAY CONSTRUCTION NOTES: 02 CONSTRUCT EXTRUDED CURB, TYPE 6,PER WSDOT STANDARD PLAN NO. F-10.42-00. STATION AND OFFSET CALLOUT TO THE FACE OF CURB. OS INSTALL MAILBOX SUPPORT TYPE 1 PER WSDOT STD PLAN H-70.10-01. STATION AND OFFSET CALLOUT TO CENTER OF THE POST. 07 INSTALL FENCE TO MATCH EXISTING. O INSTALL GATE TO MATCH EXISTING FENCE. LEGEND 2" HMA CL 1/2" PG 64-22 OVER 4" HMA CL 1" PG 64-22 OVER 6" CSBC 2" HMA CL 1/2" PG 64-22 OVER 4" HMA CL 1" PG 64-22 OVER 6" MIN CSBC AND 12" GRAVEL BORROW AND CONSTRUCTION GEOTEXTILE FOR SUBGRADE SEPARATION LANDSCAPING ZONE, SEE DWGS LA-1 TO LA-5 2" MIN HMA CJ_ 1/2" PG 64-22 FOR OVERLAY, SEE DETAIL (�l PVD-1 DRIVEWAY, ASPHALT PAVEMENT 4" HMA CL 1/2" PG 64-22 ® ROCKERY WALL GRAVEL DRIVEWAY, 4" CSTC DRIVEWAY, 6" CEMENT CONCRETE PAVEMENT OVER 2" CSBC CEMENT CONCRETE SIDEWALK, SEE CITY OF TUKWILA STD PLAN NO. RS-11 PAVED BUFFER ZONE, SEE DETAIL P CEMENT CONCRETE DRIVEWAY TYPE A, SEE DETAIL PVD-1 RETAINING WALL CEMENT CONCRETE DRIVEWAY ENTRANCE, SEE CITY OF TUKWILA STD PLAN NO. RS-09 CURB RAMP TYPE A, SEE CITY OF TUKWILA STD PLAN NO. RS-12. STATION AND OFFSET CALLOUT TO CENTER OF RAMP LANDING cCURB RAMP, TYPE PARALLEL A, SEE WSDOT STD PLAN NO. F-40.12-02. STATION AND OFFSET CALLOUT TO CENTER OF RAMP LANDING. MEM 0 10 20 VERTICAL SCALE IN FEET CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III PAVING PLAN AND PROFILE 0 20 40 HORIZONTAL SCALE IN FEET 14 89, fib no PV-3 r L 1 rT C L scale 1=20' t0 300 290 280 270 0 z 260 a w z 250 0 a 240 230 220 42ND 62 44.981 25.00' LT :EGIN T PER I #15603 -"SEE DWG 42N 62+54.98 22.00' LT FOR ENLAR END TAPER FILL / FILL id 42N VD-1I EMgNT - 1 63+07.98 4-1 4,10+00 63+42.59= 42ND 63+92.94= 42ND 64+00.27, 22.00' LT DWY4-4 440+00.00 BEGIN TAPER W DY4- 430+00.00 ♦ 42ND 64+10.27, 25.00' LT ♦ END TAPER IA. ♦♦ 1 42ND 64+10.27, 17.00' LT + ♦ en et 42ND♦ • 3+84.27= 1 42N0'••64+07.77, 14.50' LT - 00, 8.00' LT 1UW42ND 64+75.76=W _ g 1 �� CUT DY4- i 460±00.00 WININEW fi 2 Zt • , _ L 42ND 65+50.00 25.00' LT BEGINTAPER;•., .42ND 65+50.00 17.00' LT 42ND 65+52.50•;,.14.50' LT 42ND 65+65.00 21.00'•LT END TAPER :FILL FILL. J FILL : iriir"M wiii� r.11®.�®iwAric ' t'v zarr, .//jA I///�AW ++ +++++ + + + + + + + + + + ++ ++ + + ++ ++++ + + + + + + + HHHHHHNHHHHHHHHHHHHHHNHIIHHNHHHHHHHHHHHHHNHHHHHHHHH „Iii"INHHHH' IHHHHHH �I® NMHMMMMMMMMHHHHMMMHHHHHHHHHHMMI ��f'.1 mI HMHHHHHHHI' '�Ip' HHHMMHHHHINHHi1HHHHMHMMHHN' INCE I� so ireEn :4 I! �, .a F/L _ .'-\ - x it L FILL 6N It .�� a FILL Ui , FI JF� L S t. �'� - `` 42ND 64+103S 27.58' RT L ♦�♦ �3 42ND 65+25.82= 'Q % I �! - �' - ENDO . IN ,, DWY4-5 450+00.00 il L- r ? I• 42ND • +01.20 27 4:' RT o a 46.00' RT 42ND 64+01.06 36.00' RT o MATCH END/ BEGINS et ;1 EXIST 42ND 63+85.06 36.00' RT 1546 END 0' BE 0 42ND 63+85.20 27 0'it' a458 42ND 63+66.00 16.00' RTO C U ND 42ND 62+65.00 4. LT la.. tTO 00' 42ND 62+44.98 17.00' LT 42ND 63+49.59 30.00' RT 47.00' RT MATCH EXIST 42ND 63+49.59 47.00' RT BEGIN 0 • 42ND 63+54.42 27.20' RT O on 0 0 N 03 J 0 r N '1q•20% N J w O t0 -14.20% a1 J w 35.00' RT MATCH EXIST 42ND 65+11.09, 28.00' RT BEGIN 0 42ND 65+20.32, 28.00' RT END n BEGIN 0 O 42N17'65+41.32 28.00' RT END m• 42ND 65+34.32 ' 28.00' RT END mt BEGIN m 40.00' RTC ♦ MATCH EXIST, ♦♦ SEES ♦ PVD-1 ♦♦ 42ND 66+10.00 21 00 RT END TAPER ;T § 42ND 65+9750 14.50' RT 42ND 65+95.00 17.00' RT 42ND 65+95.00 23.00' RT BEGIN TAPER 43 LO J w EXISTING GROUND 0 0 0 N J W 0 0 '12.42%.>. ni. t0 �370%> LEFT FLOWLINE ELEVATION, TYP 1, 0' N + 1 N N RIGHT FLOWLINE ELEVATION, TYP O,tO M �=A 11211.0 1- COf N N co co O N;tf N;P4N N 0 0 `13'83% O Ln N CO N J W 4.13% PROFILE GRADE OI In O 1/1 N N. N J W O o -13 79% 0v 1- l` c' N;N P4 J w N SR 18 CO 144 ..............+ O V t0 N 12,49% > uWi N 04, N;N 0' 0 '.O N.01 CO 0: M.M N N coOI co O lf; m 00 ttaA N Nf LL "9.28% > CO re; fel J w O 04 cn rn N 01 en o IA N P.. 4. `a N a `a N -7.92%>w it -1 N N 0 c-an IA IA + 01 t0 N N Oi01 MGM N'N N;N 63+00 64+00 PUBLIC WORKS DEPT. -ENGIN EERING-STREETS-WATER-SEWER-PARKS-BUILDI NG- 65+00 dab designed MR( Then MG! pe1-v pol dfr RAM field bk no cN2,xti 66+00 H LINE PV-5 Q z O b ua 0 z a on w z J NOTES: . FOR GENERAL NOTES AND ADDITIONAL CONSTRUCTION NOTES, SEE DWG PVN-1. DRIVEWAY# STATION' OFFSET WIDTH DWY4 - 1 42ND 62+93.98 LT 48' DWY4 - 2 42ND 63+42.59 RT 12' DWY4 - 3 42ND 63+84.27 LT 20' DWY4 - 4 42ND 63+92.94 RT 12' DWY4 - 5 42ND 65+25.82 RT 31' DWY4 - 6 42ND 64+75.76 RT 12' * STATION CALLOUT TO THE CENTER OF THE DRIVEWAY CONSTRUCTION NOTES: 0 INSTALL MAILBOX SUPPORT TYPE 2 PER WSDOT STD. PLAN H-70.20-01. STATION AND OFFSET CALLOUT TO THE CENTER OF THE POST. O7 INSTALL FENCE TO MATCH EXISTING. 0 INSTALL GATE TO MATCH EXISTING FENCE. 10 INSTALL DOUBLE 14' CHAIN LINK GATE, PER WSDOT STD PLAN L-30.10-02. 11 INSTALL BLACK VINYL COATED CHAIN LINK FENCE TYPE 3, PER WSDOT STD PLAN L-20.10-02. LEGEND 2" HMA CL 1/2" PG 64-22 OVER 4" HMA CL 1" PG 64-22 OVER 6" CSBC 2" HMA CL 1/2" PG 64-22 OVER 4" HMA CL 1" PG 64-22 OVER 6" MIN CSBC AND 12" GRAVEL BORROW AND CONSTRUCTION GEOTEXTILE FOR SUBGRADE SEPARATION LANDSCAPING ZONE, SEE DWGS LA-1 TO LA-5 2" MIN HMA CL 1/2" PG 64-22 FOR OVERLAY, SEE DETAIL PVD-1 DRIVEWAY, ASPHALT PAVEMENT 4" HMA CL 1/2" PG 64-22 ® ROCKERY WALL GRAVEL DRIVEWAY, 4" CSTC DRIVEWAY, 6" CEMENT CONCRETE PAVEMENT OVER 2" CSBC CEMENT CONCRETE SIDEWALK, SEE CITY OF TUKWILA STD PLAN NO. RS-11 PAVED BUFFER ZONE, SEE DETAIL P CEMENT CONCRETE DRIVEWAY TYPE A, SEE DETAIL PVD-1 RETAINING WALL CEMENT CONCRETE DRIVEWAY ENTRANCE, SEE CITY OF TUKWILA STD PLAN NO. RS-09 CURB RAMP TYPE A, SEE CITY OF TUKWILA STD PLAN NO. RS-12. STATION AND OFFSET CALLOUT TO CENTER OF RAMP LANDING LIECURB RAMP, TYPE PARALLEL A, SEE WSDOT STD PLAN NO. F-40.12-02. STATION AND OFFSET CALLOUT TO CENTER OF RAMP LANDING. ' Z O 10 20 0 20 40 VERTICAL HORIZONTAL SCALE IN FEET SCALE IN FEET CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III PAVING PLAN AND PROFILE no data revisions 15 89 Ile no PV-4 scale 1'=20' Q 6T. data 2/21/2017 42ND 67+07.50, 14 50' LT 42ND 67+00.00, 21.00' LT 1` BEGIN TAPER 0 CO 10 z MATCH LINE P 260 250 u, O z 240 > 230 0 220 210 200 42ND 67+10.00; "23.00' LT END TAPER s{ 42ND 67+10.00 17.00.LT 42N1..) .b7+%U.UII, 23.UU LTA. BEGIN 'TAPER 42ND 67+70.QO 17.(b'-LT SR 518 LL. -6.42% .. . . • ........ -5.66% > M (0 N J w ;fILL 42ND 67+72.50 14.50' LT 42ND 67+80.00, 21.00' LT END TAPER 24.00' LT MATCH EXIST #15421 FILL �•., FILL'- 42ND 69+34.68. 22.00' LT ze,.(3EGIN R \ -fAL. 42ND.69+00.00 LEFT FLOWLINE ELEVATION, TYP 141 at V N N WI N -4.45% 0 O 1- a RIGHT FLOWLINE ELEVATION, TYP oho CV 1 CV N N • N'O N NN PROFILE GRADE W 42(40 AVE+ • 42ND 69+43.80 31.00' RT BEGIN MATCH EXIST 42ND 69+55.21, 23.00' RT BEGIN 42ND 69+65.11, 22.00' RT 42ND 69+67.31 32.20' RT AP 42ND 70+15.00 SEE DWG CV-1 FOR CULVERT PLAN AND PROFILE 42ND 69+94.81 22.00' LT P42ND 69+94.96, 14.00' LT IBEGIN TAPER ., 1 42ND 70+04.63, 22.93' L END 3 42ND 70+15.00, 80.72' RT, END,' \ MATCH EXIST r W2ND 70+31.41, 21.00' LT pEGIN TAPER 42ND-71+16.87;49.00' LT END( ) (MATCH EXIST)\ WALL R —31_, SEE DWG RT-4 1 FILL. - =. FILL- _ - ._SCCOCX FILL -TJ_I1_ 1- 1 11 It \ 1 � 1 � 1 \ 1 42ND 71+16.77, 18.91'RT (MATCH EXIST) 42ND 70+93.73 24.61' RT END TAPER 42ND 70+33.50, 22.17' RT 42ND 70+30.48, 21.00' RT BEGIN TAPER 42ND 70+30.46, 22.00' RT AP 0 NI 0 t O `I 0 v MN. o v 0 0 0 0 0 0 0 0 0 0 0 N ._ ... { NOD. IA v,, .. H CO.. 0.,. .._ O .., en 0 .0 O .. .O 0. *0. N N +D + C + .D - O N NCO a O CO in cn N CO A V �: V + N N t00 Nco cn + O J • + + m G^ p n _ _ N IO �- CO O1 + co + O • r aJ �__ II" -3.45% > W d J a J N .D N Ip N Ip N A N Nan N N r. N - N d 3.15% > w -2 15% > w_ a > w > w a -� a J a J a J a J a J a J > J > _.._'. 1.84/°-1.71%- o >w >w _ >W.... °.03/0 -1.661c 1.52%' O 1.60% >® b:6d°h uW -0.33% W 1.iA"/ > w 1�9/0 - e -- 4.03 _.� ^i^ i r'; 1: PROPOSED CULVERT, EXISTING GROUND c4,N SEE DWG CV-1 FOR PROFILE N N N N M 0 N 001 W Oi; 01 N1N + IN 0 0'. Of NN m 001 CO N .00+100 n'r NTN n 1 N 1 N v`v. CC CD N,N CH N N OI N 0 N NA w 67+00 68+00 69+00 70+00 71+00 END CONSTRUCTION / 42ND 71+16.82, MATCH EXIST NOTES: 1. FOR GENERAL NOTES AND ADDITIONAL CONSTRUCTION NOTES, SEE DWG PVN-1. 0 O O CONSTRUCTION NOTES: CONSTRUCT CONCRETE CURB AND GUTTER PER CITY OF TUKWILA STANDARD PLAN DWG NO. RS-09 CURB DETAIL. GUTTER CROSS SLOPE REVISED TO BE 2%. CONSTRUCT SINGLE -SLOPE CONCRETE BARRIER (PRECAST), PER WSDOT STANDARD PLAN DWG NO. C-70.10-00. STATION AND OFFSET CALLOUT TO THE CENTER OF BARRIER. INSTALL MAILBOX SUPPORT TYPE 1 PER WSDOT STD PLAN H-70.10-01. STATION AND OFFSET CALLOUT TO CENTER OF THE POST. 11 INSTALL BLACK VINYL COATED CHAIN LINK FENCE TYPE 3, PER SWDOT STD PLAN L-20.10-02. LEGEND 2" HMA CL 1/2" PG 64-22 OVER 4" HMA CL 1" PG 64-22 OVER 6" CSBC 2" HMA CL 1/2" PG 64-22 OVER 4" HMA CL 1" PG 64-22 OVER 6" MIN CSBC AND 12" GRAVEL BORROW AND CONSTRUCTION GEOTEXTILE FOR SUBGRADE SEPARATION LANDSCAPING ZONE, SEE DWGS LA-1 TO LA-5 2" MIN HMA CL 1/2" PG 64-22 FOR OVERLAY, SEE DETAIL ( 7) PVD-1 DRIVEWAY, ASPHALT PAVEMENT 4" HMA CL 1/2" PG 64-22 ® ROCKERY WALL GRAVEL DRIVEWAY, 4" CSTC DRIVEWAY, 6" CEMENT CONCRETE PAVEMENT OVER 2" CSBC CEMENT CONCRETE SIDEWALK, SEE CITY OF TUKWILA STD PLAN NO. RS-11 PAVED BUFFER ZONE, SEE DETAILr PVD-1 1 CEMENT CONCRETE DRIVEWAY TYPE A, SEE DETAIL %1 PVD-1 RETAINING WALL CEMENT CONCRETE DRIVEWAY ENTRANCE, SEE CITY OF TUKWILA STD PLAN NO. RS-09 CURB RAMP TYPE A, SEE CITY OF TUKWILA STD PLAN NO. RS-12. STATION AND OFFSET CALLOUT TO CENTER OF RAMP LANDING CURB RAMP, TYPE PARALLEL A, SEE WSDOT STD PLAN NO. F-40.12-02. STATION AND OFFSET CALLOUT TO CENTER OF RAMP LANDING. 0 10 20 VERTICAL SCALE IN FEET 0 20 40 HORIZONTAL SCALE IN FEET L PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- by dio Own KRW MGI PUN CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III PAVING PLAN AND PROFILE 16 89 file no PV-5 L c l scale 1'=20' 173.00' LT MATCH EXIST fl f tip SEE NOTE 2 SEE NOTE 2 42ND 50-02.26 65.50' LT MATCH LINE PV-1 160TH 42ND AVE S MATCH LINE PV-1 160TH ST (60' EAST) ST (60' WEST) Y FILL Y 42ND 5 BEGIN 66.00' RT #15857 #15n4 +19.76,66.00' RT MATCH EXIST SEE NOTE 2 116.00' LT MATCH EXIST 42ND 56+47.76 69.29' LT S.158TH ST MATCH LINE PV-2 158TH S1 (60' WEST) 42ND AVE S NOTES: 1. FOR GENERAL NOTES, AND CONSTRUCTION NOTES, SEE DWG PVN-1. 2. PROPOSED PAVEMENT RESTORATION LIMITS ARE SHOWN FOR THE CONVENIENCE OF THE CONTRACTOR ONLY, AND ARE BASED ON THE LOCATION OF THE NEW UTILITIES TO BE INSTALLED. THE CONTRACTOR SHALL VERIFY THE EXACT LOCATION OF ALL UTILITIES PRIOR TO BEGINNING WORK. CONSTRUCTION NOTES: 12 RAISING EXISTING BEAM GUARDRAIL, PER WSDOT STD SPECIFICATION SECTION 8-11.3(1)E LEGEND 2" HMA CL 1/2" PG 64-22 OVER 4" HMA CL 1" PG 64-22 OVER 6" CSBC 2" HMA CL 1/2" PG 64-22 OVER 4" HMA CL 1" PG 64-22 OVER 6" MIN CSBC AND 12" GRAVEL BORROW AND CONSTRUCTION GEOTEXTILE FOR SUBGRADE SEPARATION LANDSCAPING ZONE, SEE DWGS LA-1 TO LA-5 2" MIN HMA CJ_ 1/2" PG 64-22 FOR OVERLAY, SEE DETAIL /�l PVD-1 DRIVEWAY, ASPHALT PAVEMENT 4" HMA CL 1/2" PG 64-22 ® ROCKERY WALL GRAVEL DRIVEWAY, 4" CSTC DRIVEWAY, 6" CEMENT CONCRETE PAVEMENT OVER 2" CSBC CEMENT CONCRETE SIDEWALK, SEE CITY OF TUKWILA STD PLAN NO. RS-11 PAVED BUFFER ZONE, SEE DETAIL PVD-1 CEMENT CONCRETE DRIVEWAY TYPE A, SEE DETAIL PVD-1 RETAINING WALL CEMENT CONCRETE DRIVEWAY ENTRANCE, SEE CITY OF TUKWILA STD PLAN NO. RS-09 CURB RAMP TYPE A, SEE CITY OF TUKWILA STD PLAN NO. RS-12. STATION AND OFFSET CALLOUT TO CENTER OF RAMP LANDING CURB RAMP, TYPE PARALLEL A, SEE WSDOT STD PLAN NO. F-40.12-02. STATION AND OFFSET CALLOUT TO CENTER OF RAMP LANDING. 7111 wow- 0 20 40 HORIZONTAL SCALE IN FEET PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDI NG- by date MHK MGI mq RJM pd dk nedbk no cM2m: CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III PAVING PLAN AND PROFILE se dad revisions 17 89 file no PV-6 wale 1'=20' dntnmc NOTES: ALL ROUNDED CORNERS SHALL HAVE A 1" RADIUS PLASTIC SHARROW SYMBOL CH-1 TO CH-6 NTS SIDEWALK END POINT SHOWN IN ALIGNMENT, PAVING AND GRADING PLANS CEMENT CONCRETE SIDEWALK MAX SLOPE 1:12 (8.33%) AC CURB RAMP DETAIL EXTRUDED CURB, TYPE 6 SEE WSDOT STD PLAN F-10.42-00 4" HMA CL 1/2" PG 64-22 7 6" CRUSHED SURFACING BASE COURSE SEE PAVING PLAN AND PROFILE FOR TREATMENT OF PLANTER AREAS u� PROVIDE SEAL AND SAND COVER OVER JOINT 1.5' MIN.) EPDXY ADHESIVE ANCHORING METHOD SHALL BE USED DRIVEWAY PAVING SECTION NTS PV-1 TO PV-5 CEMENT CONCRETE CURB & GUTTER PER CITY OF TUKWILA STANDARD PLAN DWG NO. RS-09 WITH CROSS SLOPE REVISED TO 2% PAVED BUFFER ZONE SHALL BE COLORED CONCRETE AS DESCRIBED IN THE SPECIAL PROVISIONS WITH SCORE JOINTS AT 20" SPACING SCORE JOINT CENTER OF PAVED BUFFER ZONE 4" HMA CL 1/2" PG 64-22 EXISTING SURFACE 2" CRUSHED SURFACING BASE COURSE NTS EXISTING/PROPOSED ROAD PROVIDE SEAL & SAND COVER OVER JOINT, EXTEND 6" EACH SIDE OF JOINT PV-1 AND PV-2 2" MIN OVERLAY l//7// . z PLANED PVMT LENGTH VARIES PLANING BITUMINOUS PAVEMENT/ OVERLAY JOINT DETAIL NTS PV-1 TO PV-5 DM-1 TO DM-5 SCORE JOINTS EVERY 5' W FULL DEPTH EXPANSION JOINT SIDEWALK WITH PAVED BUFFER ZONE PAVED BUFFER ZONE 2.5' TYPICAL - SEE PAVING PLANS FOR LOCATIONS CEMENT CONCRETE SIDEWALK PER CITY OF TUKWILA STANDARD PLAN DWG NO. RS-11 0 UNDISTURBED EXISTING BASE COURSE MATCH LINE AS CALLED OUT IN ALIGNMENT AND PAVING SHEETS SAWCUT EXISTING AC BACK TO REVEAL 12" - 12" MIN UNDISTURBED EXISTING BASE 4" HMA CL 1/2" PG 64-22 6" CRUSHED SURFACING BASE COURSE HMA DRIVEWAY PAVEMENT MATCH DETAIL NTS co W E2 0 CEMENT CONCRETE SIDEWALK VARIES 5'-0' TO 7'-0" PV-2 TO PV-4 CEMENT CONCRETE SIDEWALK 6.0' TO 8.0' ,� c a. ► J VARIES s • a , n e VARIES 1 SEE PAVING PLAN AND PROFILE 0 \ / PAVED BUFFO ZONE, - SEE DETAIL 5 3/8" FULL DEPTH DRIVEWAY ENTRANCE EXPANSION JOINTS SIDE SLOPE (TYP.) EVERY 15' 3/8" (IN) EXPANSION JOINT (TYP.) NTS PV-1 TO PV-5 SEE NOTE 1 VARIES 5'-0" TO 7'-0 DRIVEWAY CEMENT CONCRETE SIDEWALK 2" CRUSHED ROCK SURFACING BASE COURSE 3/8" EXPANSION JOINT (TYP.) 1" LIP PLAN VIEW co 0 0 4- PAVED BUFFER ZONE, SEE DETAIL CEMENT CONCRETE CURB & GUTTER BROOMED FINISH (TYP.) 1" LIP BETWEEN ROADWAY GUTTER & CURB, 4'-0" DEPRESSED CEMENT CONCRETE CURB & GUTTER SECTION A ASPHALT PAVEMENT DRIVEWAY RAMP NOTES: 1. WHEN THE DRIVEWAY WIDTH EXCEEDS 15'(FT), CONSTRUCT A FULL DEPTH EXPANSION JOINT WITH 3/8" (IN) JOINT FILLER ALONG THE DRIVEWAY CENTERLINE. CONSTRUCT EXPANSION JOINTS PARALLEL WITH THE CENTERLINE AS REQUIRED AT 15'(FT) MAXIMUM SPACING WHEN DRIVEWAY WIDTHS EXCEED 30'(FT). 2. CONCRETE SHALL BE CLASS 4000. CEMENT CONCRETE DRIVEWAY TYPE A DETAIL NTS PV-1 TO PV-4 r! r L r, C L PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- M die uHK dram KRW dwdwd E —9 FUM py er CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III PAVING AND GRADING DETAILS C 18 89 , lie PVD-1 scale 1 "20' 360 L - 405. 400 • 395 I- 390 + 385• 3801 120+00 Y L. =20.00' Q G1 =-15.00% h G2871%0 O O Z 42ND Li. N f v a g o N CL Yam N� PROFILE +o. ,nN `+o� �N m> W aen GRADE N Q N N ao 405 > w > enU M I---) °° >W • ww >Wa'400 -8.50°0 -15 00% , -i ---;..____ 8.71°o f 395 ' 390 EXISTING GROUND 120+25 120+50 DRIVEWAY 1-2 L.=15.00' G1 =0.87% G2 =15.00% z O O F= UJ o (U 42ND 0 uoi a 0 + XX q 11- + M OQ 380+ O. ^ ..O ". NN.N 0. I ii ^^ "' J >J< , 3751,m. w. - ; .- . w - - 365 •- 220+00 220+25 ` 15.00% EXISTING,_ PROFILE GROUND GRADE DRIVEWAY 2-2 L.=15.00' G1=-7.50% G2 =11.89% J ¢ U 42ND o z . -coonoo 0.+- ... 380• ,-N +M c1 °o++Vn + CO N ,—N 375.M>¢mUm orn WW > >W2 370 E 11.89% 365 - EXISTING PROFILE GROUND GRADE 240+00 240+25 240+50 DRIVEWAY 2-4 ! 385 - • 1 380 120+75 •-1380 375 370 220+50 220+755 380 1375 42ND 360. 370 355 365 350 360 345:- 240+75 270+00 PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- 8.5°7° EXISTING GROUND' 270+25 Y L. =20.00' Q G1 =-15.00% G2=-5.38% 42ND oo O 405 +o v 0.. + o a � rn Y li PROFILE + ; 400 K a J ¢V ^ GRADE COen IT >wm aJ O >w �°'in 395 •8.50% m W IT -15.00'° > 390 385 EXISTING GROUND 380 375 130+00 PROFILE GRADE DRIVEWAY 2-7 by date I.WK KRW prof di, field Dk no 130+25 42ND 380 r -- -- 375E • 370 365 - 230+00 270+50 -7 130+50 DRIVEWAY 1-3 L.=15.00' G1=-7.50% G2 =10.54% 50% - 10.54% PROFILE GRADE M a W 8o 130+75 r J ¢ M f" w2 EXISTING -GROUND .380 375 370 230+25 230+50 230+75 DRIVEWAY 2-3 42ND 325 ,360 320' .355 315. k N (NI01' Q r- N- ,r, MM 01,1; < a J > J m>w mw 1.60% 1350 310 EXISTING GROUND 345 305- - 270+75 360+00 360+25 L.=10.00' G1 =1.00% G2 =12.51% 405 •400 395 390 385 4380 131+00 5 (7 Z I— o ul 325 WN U ^^ I- Q- 320 W ____ ________________ .315 12.51% PROFILE GRADE DRIVEWAY 3-6 • 4310 360+50 360+75 CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III DRIVEWAY PROFILES date revisions 19 89 Re no DV-1 scale 1'=20' eels 2121@017 r 42ND 280, 275' 270 265 260- 410+00 EXISTING GROUND 410+25 z Fr- 6 XmX +,'1 N F >w2 .17% '------ PROFILE GRADE DRIVEWAY 4-1 410+50 42ND 280 275 275 270 .270 265 1265 260 - - -260 255 410+75 420+00 L.=10.00' Y G1 =-15.00% Q G2=-7.17% 42ND w 0 w z o 0 o 0 0 O O O F O 0 in o 0 270. +ow ,D+ - o, M v cn � 270 _ rn + V 265 _ "' U `� - iy v �^ U v.N.. . 265 dJQ Ja 001 UN I.— CV > w CO w> > W 6 > J 260 . _._. > w w Eli>8 al 8.. 046. 9.00% 717% < 255 r . ..._ 1255 EXISTING, PROFILE 250 *- - _ GROUND - GRADE _ - 1 250 430+00 430+25 430+50 430+75 42ND 250 245 240 235 456+00 DRIVEWAY 4-3 L.=10.00' G1 =2.00% G2=11.84% 0 o un un > J w. VPI 450+40.00 2-D0°o -- -184'/0'' PROFILE EXISTING GRADE GROUND 450+25 450+50 DRIVEWAY 4-5 250 245 240 235 450+75 42ND 270 265 260 255 250I- 440+00 440+25 420+25 8. EXISTING GROUND VPI 420+28.00 L. =14nn' G1 =-14.10% G2 =1.98% 0 z n 0 H _ 00 0 �r; o r; XX h.m ao O1 O MO .} O l}J O 0 VN UN C.N m> 1 j W W > W 22 1- EXISTING PROFILE GROUND GRADE 420+50 DRIVEWAY 4-2 %a}323%- 42ND 260 255 250 245. L.=15.00' G1 =-13.23% G2 =4.23% 0 + 0 H o m xx O + O ll l O UN >NU 265 i J dQw>260 23%--------- 4255 PROILEGRAE •275 •270 .265 260 - 255 420+75 -270 --- 250 440+50 440+75 DRIVEWAY 4-4 L.=10.00' G1 =2.33% G2 =15.00% 2•-32% 15.00%° GROUNDEXISTNG I 260 ----"'255 250 240- 460+00 PROFILE GRADE 460+25 460+50 DRIVEWAY 4-6 245 240 460+75 PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- by &. designed dram KRW chodui -a CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III DRIVEWAY PROFILES 20 89, file no DV-2 ue1e 1•=20' t 42ND 59+62.28, 38.00' LT MATCH EXIST 42ND 59+62.28, 29.77' LT END(., MATCH EXIST 42ND 59+69.28, 30.27' LT PT 42ND 59+74.64, 25.00' LT BEGIN PC 5' R 38.00' LT MATCH EXIST, SEED PVD-1 7'R 42ND 60+15.64, 35.30' LT PT, EL. 311.00' 42ND 60+22.08, 38.00' LT /MATCH EXIST Nkiii�iiiiii�iu�iii +0 - + + + + + + + + + + + + + + + 42ND 62+90.43, 42.78' LT BEGIN MATCH EXIST 42ND 62+93.44, 30.00' LT EL. 270.65' 42.50' LT MATCH EXIST 42ND 62+68.64, 42.56' LT END MATCH EXIST 42ND 62+69.98 22.00' LT BEGIN 2 NOTES: 1. FOR GENERAL NOTES, ADDITIONAL CONSTRUCTION NOTES, AND LEGEND SEE DWG PVN-1. 2. FOR PAVING INFORMATION, SEE PAVING PLAN AND PROFILE SHEETS. CONSTRUCTION NOTES: 0 CONSTRUCT EXTRUDED CURB, TYPE 6, PER WSDOT STANDARD PLAN NO. F-10.42-00. STATION AND OFFSET CALLOUT TO THE FACE OF CURB. 42ND 60+22.08 35.30' LT END MATCH EXIST 42ND 60+08.64 28.30' LT PC, EL. 311.75' 42ND 60+08.64 25.00' LT BEGIN 42ND 63+00.16, 30.00' LT EL. 269.90' 42ND 63+03.53, 41.00' LT ENDOMATCH EXIST 41.00' LT MATCH EXIST 42ND 63+15.70, 41.00' LT MATCH EXIST 42ND 61+40.18, 32.44' LT PT 42ND 61+37.23, 33.00' LT END(., MATCH EXIST 42ND 61+44.25, 27.53' LT PC 42ND 61+44.25 22.00' LT BEGIN( 42ND 63+64.27, 41.00' LT MATCH EXIST END 42ND 63+17.98, 22.00' LT BEGIN ° 33.00' LT MATCH EXIST, SEE 3Q PVD-1 5'R- / ////4- + + + + //// + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + 42ND 63+67.27, 34.95' LT LOW POINT EL. 258.20 42ND 63+69.27, 34.95' LT PT 41.00' LT MATCH EXIST 42ND 63+74.27 29.95' LT 'PC 42ND 64+10.27 41.00' LT MATCH EXIST 42ND 63+74.27, 22.00' LT 42ND 64+10.27, 37.50' LT /BEGINO / ° 42ND 61+79.25, 29.21' LT PT 42ND 61+83.94, 33.00' LT MATCH EXIST 42ND 61+83.94 29.21' LT END 2 42ND 61+74.25, 24.21' LT PC 42ND 61+74.25 22.00' LT BEGIN 2 42ND 64+43.94, 35.07' LT MATCH EXIST 42ND 64+43.94, 25.00' LT MATCH EXIST + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + ////1/3+ 0 ///// + + + + + + + + + + + + + + + + PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- dd. &LOW MAX a.m dwarf MJ DPI ens RJM Pro& fieldbk + + + + + t t t t t t t -t- -1- t t t t t t t + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + /4 0 /7//// + + + + + + + + + f + + + + + + + + + + + + cM2m: CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III DRIVEWAY DETAILS ( rauieinne 21 fie no scale 89 DVD-1 l~� rT Cu; 42ND 50+14.65, 38.62' LT CURB RAMP 1 42ND 50+02.07, 15.00' LT 42ND 49+95.00 11.76 8' 0. + + + + + + + + + + +0 + O ' + o O '-, ;111 + +Art AJP4,.x x x x x x- + 0 le :f.j0Wing E! + }� d + + ,PD URB + C RVE +A + + T T *7.07t + + + + + + 42ND 5@+35.93, 157115' L1- + + + + CURBF- RAMP 2+ + + + 5.0+00I- + + + + + + + 4' + + + + + + +42ND AVE +S. + + 42ND $0+331-71, 14.85' R-T + + + + + +CUR RAMP 3_ + + + + + + + + + + + • + + + + + + + + + + + + + + + + + + + + 0 + + + + + + �� n a4 e . + + C41RVE1 B + + ® i + ENV 4"-CURS-}. + ��011. + + + / / 1,r W.-,rii.T -VOW + + +O+ + + + �� -= .„, + + ® +� + + + +111 ® 42ND 50+44.62, 20.44' RT + + + + ��'I BEGIN TAPER + + + � . 42ND 50+15.17 43.06' RT + + G. CURB RAMP 4 0 + + + + + + ff� + + 28• + + 42ND 50+14.02, 65.59' LT /BEGIN °MATCH EXIST 42ND 50+14.06 59.59' LT END 9 BEGIN BEGIN 4" CURB 0 WALL RW-1L SEE DWGS RT-2 & RT-6 ' 42ND 50+13.80 60.05' RT i END 9 10.0' 0 10 20 BEGIN SCALE IN FEET BEGIN 4" CURB T T + + + + + + + .4- + + + +, + + + + + .n 42ND 50+56.62 23.00' RT + + + •+ 18 5. + 1 42ND 50+13.44, 66.04' RT BEGIN MATCH EXIST 0 \- ROCKERY WALL RW-1R, SEE DWGS RT-1 AND RT-5 END TAPER CURB RAMP 1 - TOP OF CURB ELEVATIONS LOCATION STATION OFFSET ELEV DESCRIPTION O50+14.09 55.59' LT 421.20 TOC WING 2 I 50+14.36 40.60' LT 419.77 TOC RAMP BOTTOM O3 50+15.08 36.66' LT 419.69 TOC RAMP BOTTOM 0 50+17.82 29.65' LT 419.19 TOC WING OS 50+24.84 33.48' LT 419.34 BACK OF WING 50+22.97 38.10' LT 419.73 BACK OF RAMP U50+22.25 42.04' LT 419.81 BACK OF RAMP (1) 50+22.09 55.64' LT 421.24 BACK OF WING CURB RAMP 2 - TOP OF CURB ELEVATIONS LOCATION STATION OFFSET ELEV DESCRIPTION O9 50+21.73 24.08' LT 418.44 TOC WING 10 50+34.02 15.77' LT 416.46 TOC RAMP BOTTOM 11 50+37.87 14.67' LT 416.38 TOC RAMP BOTTOM 12 50+44.16 14.00' LT 416.09 TOC WING 13 50+27.71 29.40' LT 418.48 BACK OF WING 14 50+36.22 23.48' LT 416.61 BACK OF RAMP 15 50+40.07 22.38' LT 416.53 BACK OF RAMP 16 50+44.16 22.00' LT 416.24 BACK OF WING CURB RAMP 3 - TOP OF CURB ELEVATIONS LOCATION STATION OFFSET ELEV DESCRIPTION 17 50+43.57 14.54' RT 416.09 TOC WING 18 50+35.51 16.99' RT 416.53 TOC RAMP BOTTOM 19 50+31.95 18.81' RT 416.61 TOC RAMP BOTTOM 20 50+21.25 28.57' RT 418.27 TOC WING 21 50+26.12 32.07' RT 418.30 BACK OF WING O. 50+34.70 24.16' RT 416.72 BACK OF RAMP 23 50+38.26 22.34' RT 416.64 BACK OF RAMP 24 50+44.62 20.44' RT 416.20 BACK OF WING CURB RAMP 4 - TOP OF CURB ELEVATIONS LOCATION STATION OFFSET ELEV DESCRIPTION 25 50+18.20 33.68' RT 418.82 TOC WING 26 50+15.57 41.10' RT 419.21 TOC RAMP BOTTOM 27 50+14.89 45.04' RT 419.29 TOC RAMP BOTTOM 28 50+14.04 56.06' RT 420.10 TOC WING 29 50+20.03 56.42' RT 420.13 BACK OF WING 30 50+20.82 46.06' RT 419.32 BACK OF RAMP 31 50+21.50 42.12' RT 419.24 BACK OF RAMP O. 50+23.59 36.31' RT 418.85 BACK OF WING CURB RETURN "A" - FLOWLINE ELEVATIONS LOCATION STATION OFFSET ELEV PC 50+14.16 43.80' LT 420.00 1/4 50+16.51 32.38' LT 419.19 1/2 50+23.02 22.72LT 417.90 3/4 50+32.73 16.27' LT 416.60 PT 50+44.16 14.00' LT 415.59 CURB RETURN "B" - FLOWLINE ELEVATIONS LOCATION STATION OFFSET ELEV PC 50+14.79 46.07' RT 419.34 1/4 50+18.24 33.60' RT 418.48 1/2 50+25.98 23.24' RT 417.28 3/4 50+36.95 16.39' RT 416.34 PT 50+49.67 14.00' RT 414.91 CURV DATA CURVE # DELTA RADIUS TANGENT LENGTH CURVE A 89°37'10' 30.00' 29.80' 46.92' CURVE B 85°11'6 ' 35.00' 32.18' 52.05' NOTES: 1. FOR GENERAL NOTES, ADDITIONAL CONSTRUCTION NOTES, AND LEGEND SEE DWG PVN-1. 2. FOR GRADING INFORMATION, SEE INTERSECTION GRADING PLAN SHEETS. 3. CURB HEIGHT IS 6" UNLESS OTHERWISE NOTED. CONSTRUCTION NOTES: CONSTRUCT CONCRETE CURB AND GUTTER PER CITY OF TUKWILA STANDARD PLAN DWG NO. RS-09 CURB DETAIL. GUTTER CROSS SLOPE REVISED TO BE 2%. CONSTRUCT AC CURB RAMP, SEE DETAIL ® . PVD-1 L L rT L PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- IMMirmd ICRW chAcked MGJ PW-Y RY ;g1 Huy tt151E�`/. clzrow CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III INTERSECTION DETAILS 22 89 file no ID-1 l scale 1'=20' r EL 345.34 42ND 56+46.37, 58.29' LT END( 1 9 EL 346.20 EL 346.26 42ND 56+46.42 44.00' LT BEGIN END 1O 42ND 56+34.42 O 45.06' LT PT 42ND 56+44.12, 32.49' CURB RAMP 5 42ND 56+16.07 25.07' LT R=20' PC 19' 12' LT o ©`WI0 1 42ND 56+47.64, 58.29' LT EL 345.36 URVE DATA CURVE # DELTA RADIUS TANGENT LENGTH CURVE C 90°00'19" 30.00' 30.00' 47.13' CURVE D 90°00'00" 30.00' 30.00' 47.12' CURVE E 90°00'00" 30.00' 30.00' 47.12' CURVE F 89°59'41" 30.00' 30.00' 47.12' + • + + • + + 42ND 56+70.42, 58.29' LT + + BEGIN + + + + + + + 9 4.diikoo ‘Av 0 0 C 42ND 56+70.42, 49.29' LT END 9 BEGIN BEGIN 4" CURB 42ND 56+72.02, 34.35' LT CURB RAMP 7 ++ + G}URVE+ [D++ + ?.UV +. + + + +ENDI-4" CURB + + + + + + + 21 or- / END TAPER 0 10 20 SCALE IN FEET 42ND 57+03.64, 22.00' LT BEGIN TAPER 42ND 57+14.64, 25.00' LT Al II IIOI77 +42N15 56$12.0& + + + + + + + + + + + + + + + + + + + + +42ND+ 5644.66+,14.56 LT + +/ + + + + + + + + + + CURB RAMP} 8 + + + + + + + + + + + + + + + + + + + + 5-j+00 7 0 42ND 57+08.00 ° + + + + + + + + + + + + + + ° 42ND 56+14.43 23.00' RT PC d .a ° 0 0 42ND 56+44.14 32.50' RT CURB RAMP 6 R=20' 42ND 56+34.43, 43.00' RT PT 42ND 56+46.43 44.00' RT BEGIN O END C) 42ND 56+46.43 57.00' RT END , MATCH EXIST ++ 4$ND+AVM S+++++42ND+56+95.161417'R + CURB RAMP 9 + + + + + + + + + + + + + + + + + + + + + + +0 + + + + + END 4° CURB + + + + + + + VI + + �= + + + + + + CIURVE'+F + + CUgVE T + + + + + + + + + + j + + `5V+ + + + + + + + + + + + + 4� 7.5' 0 + + + + + - + + + + + - 42ND 56+72.07, 34.20' RT CURB RAMP 10 42ND 56+70.42 49.00' RT END BEGIN BEGIN 4" CURB 42ND 56+70.42, 57.00' RT BEGIN(g1, MATCH EXIST PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- 42ND 57+15.64, 23.00' RT END TAPER 42ND 57+03.64, 21.50' RT BEGIN TAPER NOTES: 1. FOR GENERAL NOTES, ADDITIONAL CONSTRUCTION NOTES, AND LEGEND SEE DWG PVN-1. 2. FOR GRADING INFORMATION, SEE INTERSECTION GRADING PLAN SHEETS. 3. CURB HEIGHT IS 6" UNLESS OTHERWISE NOTED. CONSTRUCTION NOTES: O1 CONSTRUCT CONCRETE CURB AND GUTTER PER CITY OF TUKWILA STANDARD PLAN DWG NO. RS-09 CURB DETAIL. GUTTER CROSS SLOPE REVISED TO BE 2%. O9 CONSTRUCT AC M am MHK chocked MGJ PrRi W RJM d, .M bk no CURB RAMP, SEE DETAIL ® . PVD-1 CURB RAMP 5 - TOP OF CURB ELEVATIONS LOCATION STATION OFFSET ELEV DESCRIPTION 01 56+46.21 40.43' LT 346.27 TOC WING O2 56+38.83 36.86' LT 346.40 BACK OF RAMP 03 56+35.13 38.39' LT 346.47 SIDEWALK AP 0 56+33.60 34.70' LT 346.54 SIDEWALK AP OS 56+37.29 33.16' LT 346.47 BACK OF RAMP O6 56+33.61 19.41' LT 347.68 TOC WING 7O 56+43.29 30.67' LT 346.05 TOC RAMP BOTTOM 8O 56+44.83 34.36' LT 345.97 TOC RAMP BOTTOM CURB RAMP 6 - TOP OF CURB ELEVATIONS LOCATION STATION OFFSET ELEV DESCRIPTION 9O 56+33.63 19.42' RT 347.68 TOC WING 10 56+37.30 33.17' RT 346.46' BACK OF RAMP 11 56+33.61 34.71' RT 346.53 SIDEWALK AP 12 56+35.14 38.40' RT 346.46 SIDEWALK AP 13 56+38.84 36.87' RT 346.39 BACK OF RAMP 14 56+46.22 40.45' RT 346.08 TOC WING 15 56+44.84 34.38' RT 345.91 TOC RAMP BOTTOM 16 56+43.31 30.68' RT 345.99 TOC RAMP BOTTOM CURB RAMP 7 - TOP OF CURB ELEVATIONS LOCATION STATION OFFSET ELEV DESCRIPTION 17 56+70.42 45.29' LT 344.86 TOC WING 18 56+71.44 36.27' LT 344.47 TOC RAMP BOTTOM 19 56+72.72 32.48' LT 344.39 TOC RAMP BOTTOM 20 56+75.27 27.66' LT 344.46 TOC WING 21 56+81.98 32.01' LT 344.50 BACK OF WING 22 56+80.32 35.06' LT 344.52 BACK OF RAMP 23 56+79.04 38.85' LT 344.60 BACK OF RAMP 24 56+78.42 45.29' LT 344.90 BACK OF WING CURB RAMP 8-TOP OF CURB ELEVATIONS LOCATION STATION OFFSET ELEV DESCRIPTION 26 56+79.76 22.25'LT 344.15 TOC WING 26 56+92.71 15.01' LT 343.16 TOC RAMP BOTTOM 27 56+96.64 14.24'LT 343.08 TOC RAMP BOTTOM 28 57+03.64 14.00'LT 342.76 TOC WING 29 57+03.64 22.00' LT 342.90 BACK OF WING 30 56+98.18 22.11' LT 343.23 BACK OF RAMP 31 56+94.25 22.88' LT 343.31 BACK OF RAMP 32 56+85.27 28.05' LT 344.18 BACK OF WING CURB RAMP 9 - TOP OF CURB ELEVATIONS LOCATION STATION OFFSET ELEV DESCRIPTION 33 57+03.64 14.00' RT 342.96 TOC WING 56+97.14 14.18' RT 343.07 TOC RAMP BOTTOM 35 56+93.20 14.88' RT 343.15 TOC RAMP BOTTOM 36 56+80.13 21.91' RT 344.08 TOC WING 37 56+85.20 27.43' RT 344.12 BACK OF WING 38 56+94.52 22.29' RT 343.27 BACK OF RAMP 39 56+98.46 21.59' RT 343.19 BACK OF RAMP 40 57+03.64 21.50' RT 343.10 BACK OF WING CURB RAMP 10 - TOP OF CURB ELEVATIONS LOCATION STATION OFFSET ELEV DESCRIPTION 41 56+75.64 27.10' RT 344.35 TOC WING 42 56+72.78 32.34' RT 344.26 TOC RAMP BOTTOM 43 56+71.48 36.12' RT 344.18 TOC RAMP BOTTOM 44 56+70.42 44.00' RT 344.34 TOC WING 45 56+77.92 44.00' RT 344.38 BACK OF WING 46 56+78.59 38.57' RT 344.25 BACK OF RAMP 47 56+79.89 34.79' RT 344.33 BACK OF RAMP 48 56+81.83 31.32' RT CURB RETURN "C" - LOCATION PC 1/4 1/2 3/4 STATION 56+16.42 56+27.90 56+37.63 56+44.14 344.39 BACK OF WING FLOWLINE OFFSET 14.00' LT 16.28' LT 22.79' LT 32.52' LT PT 56+46.42 CURB RETURN "D" - LOCATION PC 1/4 1/2 3/4 PT STATION 56+70.42 56+72.71 56+79.21 56+88.94 57+00.42 44.00' LT FLOWLINE OFFSET 44.00' LT 32.52' LT 22.79' LT 16.28' LT 14.00' LT ELEVATIONS ELEV 348.60 347.68 346.77 345.97 345.68 ELEVATIONS ELEV 344.52 344.38 343.85 343.32 342.63 CURB RETURN "E" - LOCATION PC STATION 56+16.43 FLOWLINE OFFSET 14.00' RT ELEVATIONS ELEV 348.69 1/4 1/2 3/4 56+27.91 56+37.64 56+44.14 16.28' RT 22.79' RT 32.52' RT 347.72 346.75 345.91 PT 56+46.43 44.00' RT 345.41 CURB RETURN "F" - FLOWLINE ELEVATIONS LOCATION PC STATION 56+70.42 OFFSET 44.00' RT ELEV 344.01 1/4 56+72.71 32.52' RT 344.25 1/2 56+79.21 22.79' RT 343.79 3/4 56+88.94 16.28' RT 343.32 PT 57+00.42 14.00' RT 342.76 CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III INTERSECTION DETAILS 23 89 flan ID-2 revisions scale 1 20' am. 9DI0017 r INTERSECTION GRADING POINTS CONTROL OFFSET LOCATION STATION ELEV CP1 50+50.00 14.00'LT 414.88 CP2 50+50.00 7.00'LT 415.02 CP3 50+50.00 0.00' LT 415.16 CP4 50+50.00 7.00'RT 415.02 CP5 50+50.00 14.00'RT 414.88 CP6 50+44.18 7.00'LT 415.70 CP7 50+44.20 0.00' LT 415.78 CP8 50+27.92 8.13' LT 417.32 CP9 50+30.03 8.20'RT 417.15 CP10 50+12.52 11.34'LT 418.92 CP11 50+14.00 11.62'RT 418.70 CP12 50+02.03 0.00' LT 419.96 CP13 50+02.26 65.51'LT 421.98 CP14 50+14.02 65.59'LT 421.40 CP15 50+02.19 43.86'LT 420.87 CP16 50+08.18 43.83'LT 420.48 _ CP17 50+02.11 22.93' LT 419.92 CP18 50+09.31 27.16' LT _ 419.44 CP19 50+01.94 23.02'RT 419.63 CP20 50+10.09 28.31'RT 419.00 CP21 50+01.85 46.03'RT 419.82 CP22 50+08.32 46.05'RT 419.58 CP23 50+01.77 65.99'RT EXIST CP24 50+07.60 66.01' RT EXIST CP25 50+23.11 0.00' LT 417.99 CP26 49+91.74 65.58'LT 421.97 CP27 49+91.60 43.90'LT _ 420.94 CP28 49+90.45 26.78' LT 420.54 CP29 49+91.98 8.35'LT 420.68 CP30 49+81.93 16.69'LT 421.13 CP31 49+73.23 12.19'LT 421.87 CP32 49+61.99 11.80' LT 422.86 CP33 49+55.00 11.87'LT EXIST CP34 49+55.00 0.00' LT EXIST CP35 49+61.99 0.00' LT 423.27 CP36 49+79.86 0.00' LT 421.80 CP37 49+55.00 9.35' RT EXIST CP38 49+61.99 9.34'RT 423.18 CP39 49+73.52 9.99' RT 422.01 CP40 49+87.62 12.19'RT 420.91 CP41 49+90.98 28.72'RT 420.22 CP42 49+92.68 46.01' RT 420.07 CP43 49+93.39 65.96'RT EXIST CP44 49+84.98 65.93'RT EXIST CP45 49+83.48 45.98' RT 420.15 CP46 49+80.00 34.43'RT 420.50 CP47 49+73.21 24.37' RT 421.45 CP48 49+67.19 19.98' RT 422.43 CP49 49+61.99 18.67'RT 423.07 CP50 49+55.00 18.71' RT EXIST CP51 50+14.33 90.59LT 422.31 CP52 50+02.43 90.51 LT 422.94 CP53 49+91.91 90.44 LT 1 422.87 PC54 50+14.21 _ 115.59LT t 422.74 PC55 50+02.53 115.51 LT 423.34 CP56 49+92.09 115.44 LT , 423.26 CP57 50+14.09 140.59 LT 422.97 CP58 50+02.64 + 140.51 LT 423.50 CP59 49+92.26 _ 140.44 LT f 423.40 CP60 50+13.96 167.59 LT 423.08 CP61 50+02.75 167.51 LT 423.54 CP62 49+92.45 167.44 LT _ 423.50 CP63 50+13.93 173.00 LT EXIST CP64 50+02.78 173.00 LT EXIST CP65 49+92.49 173.00 LT EXIST 1 _J LL FILL CP2 CP3 CP4 CP63 CP60 •., CP57 C 54 CP51 CP74 ����o•���� ior sAriiiiits CP65 CP59 CP56 NOTES: 1. CONTOURS DISPLAYED AT 0.1' INTERVALS ARE APPROXIMATE AND ARE PROVIDED FOR REFERENCE ONLY. 2. FOR ALIGNMENT INFORMATION, SEE SURVEY CONTROL PLAN SHEETS. 3. FOR PAVING INFOMATION, SEE PAVING PLAN AND PROFILE PLAN SHEETS. 4. FOR CURVE DATA, CURB RAMPS, AND CURB RETURN ELEVATIONS, SEE INTERSECTION DETAILS DWG ID-1. CP53 CP26 CP27 CP28 0 CP30 */ CP31 CP47 CP48 CP32 CP49 CP33 `. CP50 CP34 CP37 771.1 *0-41111111r J CP46 CP45 {} CP24 CP23 CP43 CP44 0 10 20 SCALE IN FEET r L C L PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- by trim cherked scel Yee RJv qo b c4,2nw. CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III INTERSECTION GRADING PLAN 24 89 Re no IG-1 f sole r=20' INTERSECTION GRADING CONTROL POINTS LOCATION STATION OFFSET ELEV CP1 57+08.00 14.00' LT 341.92 CP2 CP3 57+08.00 7.00' LT 342.13 57+08.00 0.00' LT 342.34 CP4 57+08.00 7.00' RT 342.20 CP5 57+08.00 14.00' RT 342.06 CP6 57+00.42 7.00' LT 342.78 CP7 57+00.42 0.00' LT 342.92 CP8 57+00.42 7.00' RT 342.84 CP9 56+88.94 8.14' LT 343.56 CP10 56+88.94 0.00' LT 343.78 CP11 56+88.94 8.14' RT 343.56 CP12 56+80.00 14.00' LT 344.02 CP13 56+80.00 0.00' LT 344.44 CP14 56+80.00 14.00' RT 344.02 CP15 56+70.43 58.29' LT 344.64 CP16 56+58.40 58.29' LT 345.40 CP17 56+46.37 58.29' LT 345.36 CP18 56+58.42 44.00' LT 345.10 CP19 56+58.42 32.52' LT 345.19 CP20 56+58.42 22.79' LT 345.36 CP21 56+57.50 14.00' LT 345.59 CP22 56+57.50 14.00' RT 345.59 CP23 56+58.43 22.79' RT 345.31 CP24 56+58.42 32.52' RT 345.08 CP25 56+58.42 44.00' RT 344.71 CP26 56+46.43 57.00' RT EXIST CP27 56+58.42 57.00' RT EXIST CP28 56+70.42 57.00' RT EXIST CP29 56+35.00 14.00' LT 347.20 CP30 56+35.00 0.00' LT 347.62 CP31 CP32 56+35.00 14.00'RT 347.20 56+27.90 8.14' LT 347.91 CP33 56+27.90 0.00' LT 348.14 CP34 56+27.91 8.14' RT 347.93 CP3S 56+16.42 7.00' LT 348.80 CP36 56+16.42 0.00' LT 349.00 CP37 56+16.42 7.00' RT 348.85 CP38 56+12.00 14.00' LT 348.94 CP39 56+12.00 7.00' LT 349.12 CP40 56+12.00 0.00' LT 349.34 CP41 56+12.00 7.00' RT 349.20 CP42 56+12.00 14.00' RT 349.06 CP43 56+57.50 0.00' LT 346.01 CP44 CP45 56+47.76 69.29' LT 345.34 56+74.02 58.29 LT 344.43 CP46 56+73.35 78.29 LT 344.50 CP47 56+58.42 78.292 LT 345.39 CP48 56+47.75 78.29 LT 345.33 CP49 56+72.68 98.29 LT 344.59 CP50 56+58.42 98.29 LT 345.38 CP51 CP52 56+47.87 56+72.09 98.29 LT 116.00 LT 345.30 EXIST CP53 CP54 56+58.42 116.00 LT 116.00 LT EXIST 56+47.97 EXIST NOTES: 1. CONTOURS DISPLAYED AT 0.1' INTERVALS ARE APPROXIMATE AND ARE PROVIDED FOR REFERENCE ONLY. 2. FOR ALIGNMENT INFORMATION, SEE SURVEY CONTROL PLAN SHEETS. 3. FOR PAVING INFOMATION, SEE PAVING AND PROFILE PLAN SHEETS. 4. FOR CURVE DATA, CURB RAMPS, AND CURB RETURN ELEVATIONS, SEE INTERSECTION DETAILS ON DWG ID-2. PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- designed KRW chedwO MG) col am RJM yak field bk no W ,�P 1 iC 43 PZz, cM2m: CP28 CP27 S.158TH ST CP26 CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III INTERSECTION GRADING PLAN A 0 10 20 SCALE IN FEET no dao revisions Q •.; L 25 89 file no IG-2 scale 1"=20' ee,. 9n11,n17 NOTE: 1. PRIOR TO CONSTRUCTION, CONTRACTOR TO POTHOLE EXISTING 60-INCH WATER MAIN AT ALL NEW UTILITY CROSSING LOCATIONS TO VERIFY HORIZONTAL AND VERTICAL LOCATIONS OF THE WATER MAIN. <yeg .. .......... Apr, .,,,,,, .v .+p — ' -- _" 49+00 — — ; -t r v7 -_ - V _ :.i w — — w — I — —I- 1- F„ I © I® r i #15857 �--� RELOCATE WATER VAULT HYDRANT WALL RW-1 L —t, — F Z' .�f.:�. c. �'-• � 4N. - 8T✓.`— 4.i— -q'�'i— _A " 5 +00_�� I 0;52+00 - - D2-GV #15854 WALL RW-1R 42ND AVE S. EX. 60" SPU WATER MAIN, SEE NOTE 1 FILL (1-13 .c FILL #15838 e S z J OA- COMCAST — qvu 430 420 410 390 380 370 360 117 5.75, 19.01 kI i '— F- O z N �rCI. cc WQ. ar� V Z. I 00 et UU - ao ,-1- O�ZWfn N�� WOVOO�re a'� 0—J 0010 II vvvo 1- GRADE EXIST NG ri O1 Jr,"',�.omo p V "D_wwwy 0GROUND - 12" DIA' L=24' @10.71% 8" W c Q CB TYPE 42ND 51+ RIM = 39 IE=394. IE = 394. IE = 395. SEE DR-6 2 481N K?s7� 9_1 MZ c0 00y N o400 13.08' LT . BP B ` SS Oa 0 �V [� `— co �e�� II en n n II �WWW �w0u Lrnz00,, ,- •01 o + r..._ L rn eeeN to rA me+ni -0 II II reWWWWco v - � eO Wrenn III W 18" 71A; L=130' @10.00% gT 18" DIA; BP L=70' @ 14.14% � 0J 18" DIA; L=60' @ W 3.68% SS _gyp' 18' DIA; L=58' @12.93% 50+00 51+00 52+00 53+00 M z a a 0 W z J x 1- r: UTILITY CONSTRUCTION NOTES: O 0 l31 0 16 17 REMOVE EXISTING MANHOLE OR CATCH BASIN REMOVE EXISTING PIPE TO LIMITS AS SHOWN REMOVE EXISTING STRUCTURE AS SPECIFIED ABANDON EXISTING PIPE AND/OR CATCH BASIN CONNECT EXISTING PIPE TO NEW CATCH BASIN/MANHOLE CONNECT NEW PIPE TO EXISTING CATCH BASIN/MANHOLE CONNECT WALL UNDERDRAIN TO CATCH BASIN ADJUST EXISTING CATCH BASIN OR MANHOLE TO FINISHED GRADE ADJUST EXISTING UTILITIES GRADE ADJUST EXISTING UTILITIES GRADE BY OTHERS REFER TO KING COUNTY WATER DISTRICT 125 PLANS AND SPECIAL PROVISIONS. RELOCATE FIRE HYDRANT ASSEMBLY INSTALL NEW FIRE HYDRANT ASSEMBLY RELOCATE WATER METER PROTECT UTILITY IN PLACE EXTEND AND CONNECT EXISTING PIPE TO NFW CATCH BASIN/MANHOLE CONNECT AND ADJUST EXISTING PIPE TO NEW/PROPOSED DITCH CASTING TO CASTING TO LEGEND ST STORM SEWER O STORM CATCH BASIN/INLET 0 STORM SEWER MANHOLE REMOVE DRAINAGE STRUCTURE NUMBER lD4) DITCH ID NUMBER 0 20 40 HORIZONTAL SCALE IN FEET 0 10 VERTICAL SCALE IN FEET 20 r L r- L L PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- by dslti awarad dram cbsdut dfr r CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III DRAINAGE AND UTILITY PLAN AND PROFILE 26 89 Reno DR-1 t scale 1'=20' 390 380 370 360 350 340 330 320 — — 9 n2- zv oP — —o'l' — I -+---r on SEE SHEET DRD-3 <2-10 FOR ENLARGED PLAN VIEW CB = ataL e. — — ar — sT — ar — er 1— er — e _ 2-7 54+5 00 N 1+00� _ y am- — — _ ,c — 2-16 ST 7 2ND hVE z1 ST ST I 2-3 I I (2-4 IST c ST ST ST z( 09 ( x H f CB 1-14) #15826\ #15820 AA 42ND 55+45.0 Li 17.5' RT HYDRANT #15808 J • _ 00 -1 1 0 42ND 56+28.0 30.0' RT a!ST h SI��7 co c 2-18: STORMWATER DETENTION VAULT co .: O 2-WV GI 20HYDRANT ©o. // 1tOwv E"3 - � —w a -- IS s:r #4066 G 57+00-1 ST ST CUT / #1565 0 srs MATCH LINE DR W a ND ❑ :ss BP G 1 18" DIA; L=45' @11.1 % 54+00 I EXISTING GROUND _IQIZWQ, Q-,flrn cNi c) PROFILE II nfncn❑ GRADE Z� II II 11 W CO (Ad SS W 18" DIA; L=183' @9.39% 55+00 PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- by SS 18" DIA; L=64' @21.09% e.. dabanad KRW checked OTC RD RWC ab- 56+00 OUI-20323 Water Water '2" DIA P UI-20322 Gas 18" DIA; L=38' @1.79% 0 0 18" DIA; L=78' @1.90% 57+00 1. CI v th CI z MATCH LINE DR-3 42ND 57+80 UTILITY CONSTRUCTION NOTES: O 0 0 0 0 0 0 10 11 12 13 1a 15 16 17 REMOVE EXISTING MANHOLE OR CATCH BASIN REMOVE EXISTING PIPE TO LIMITS AS SHOWN REMOVE EXISTING STRUCTURE AS SPECIFIED ABANDON EXISTING PIPE AND/OR CATCH BASIN CONNECT EXISTING PIPE TO NEW CATCH BASIN/MANHOLE CONNECT NEW PIPE TO EXISTING CATCH BASIN/MANHOLE CONNECT WALL UNDERDRAIN TO CATCH BASIN ADJUST EXISTING CATCH BASIN OR MANHOLE TO FINISHED GRADE ADJUST EXISTING UTILITIES CASTING TO GRADE ADJUST EXISTING UTILITIES CASTING TO GRADE BY OTHERS REFER TO KING COUNTY WATER DISTRICT 125 PLANS AND SPECIAL PROVISIONS. RELOCATE FIRE HYDRANT ASSEMBLY INSTALL NEW FIRE HYDRANT ASSEMBLY RELOCATE WATER METER PROTECT UTILITY IN PLACE EXTEND AND CONNECT EXISTING PIPE TO NEW CATCH BASIN/MANHOLE CONNECT AND ADJUST EXISTING PIPE TO NEW/PROPOSED DITCH LEGEND ST STORM SEWER 9 STORM CATCH BASIN/INLET O STORM SEWER MANHOLE w t REMOVE (2-11) DRAINAGE STRUCTURE NUMBER 1D41 DITCH ID NUMBER CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III DRAINAGE AND UTILITY PLAN AND PROFILE ' 0 20 40 HORIZONTAL SCALE IN FEET 1 1 1 0 10 20 VERTICAL SCALE IN FEET dab revisions 27 89 filenc DR-2 scale 1'=20' 4- 9b1P1017 350 340 330 320 310 300 290 280 270 0 z a N a 0 W z J x a m 0 z 0 N 0 0 w z J x 0 2 #15645 HYDRANT 11 Iry — �-- FILL J YY DP- - --a'— —g ", 'ST ST ST ST /4� DRD-2 1.5FSn 59+00_ 3-9 STD -ST 3-6A 16 ST 3-10 ST c3-17k5_,) I / 3 -11 -T ST — ST 60+00 — - STST HYDRANT(11 (Li) HYDRANT TE 61+00 (3-18 42ND AVE S. ST ST ST ST — ST ST WM ra( PILL FILL 3-12 (3-E2), (2)WM -FILE - 3 16 6 +00 ST ST ST FILL a a a a 3-13 z qa' 0 ST — w z FILL - Val MOP.t MAP. IRP WALL RW-3R --Y � + I MATCH LINE DR-4 42ND 62+30 a > ,6 w vl fn z IX NQUco '°- o cc. - - _. - - - F- >tri d'[0� DUhLv�---- 0cr,,2 II 11 11 II N—WWWW ag , NmNNN• 0_w Ilmmm - —zo ��II II a PROFILE in2 � in 2., ....�� ,� 0�cOinvz a-0NCOrnorn Xo -..0 t j F o. ., i- ... T—.. .�. .._-.... it �� 0:0 _ - - -� oo3LLVKWWw fA6.E 9 'n�U2O .. CCM`ce oou wD0ci,Mn._rn.�I' a�W� Il mmmQ n u it w:oa0 N.W WWW t/1 re0 N tvZ Nj ,6 In-'nc' ,0n'miovvW XW II mm m0 �5M01-Win {>"o 'x Rt9.g Z N n e- n +,_0+°oco°O :. .. ,. .. W:°.ornm0^0 - DIA; L=45' @5.42% , Crmz�Z 005.u_NrCe_WWv oc00>LLv�wuiw� W I i 20• V�Zm 11 II 11 BP SS I 0 • EXISTING T GROUNDS. 18" DIA; L=81' @ 10.80%� .T BP re re N��50 q ;;�Z Fd 18" DIA; L=26' @ 12.46% 18" DIA; L=32' @ 10.56% •j pv�LLsr o v 0 N co co N re �z2 I II -I w , re wwwCO •_ I,:,w - >, Win LZ 5 0�0.—co- D"4.- cmv fV 0.-,al °No-R-a-�i 6' 24" DIA; L=170' @ 13.42% 0 CC OU§LLaKWWWWN Uo.T loc Z 2 II. II it II. w CO 24" DIA; L=58' @ 13.69% 0°\ 24" DIA; L=131' @ 15.58%-' 58+00 59+00 60+00 61+00 62+00 UTILITY CONSTRUCTION NOTES: O REMOVE EXISTING MANHOLE OR CATCH BASIN OREMOVE EXISTING PIPE TO LIMITS AS SHOWN (3 1 RFMOVF EXISTING STRUCTURE AS SPECIFIED OABANDON EXISTING PIPE AND/OR CATCH BASIN OS CONNECT EXISTING PIPE TO NEW CATCH BASIN/MANHOLE O6 CONNECT NEW PIPE TO EXISTING CATCH BASIN/MANHOLE 16 CONNECT WALL UNDERDRAIN TO CATCH BASIN ADJUST EXISTING CATCH BASIN OR MANHOLE TO FINISHED GRADE ADJUST EXISTING UTILITIES CASTING TO GRADE ADJUST EXISTING UTILITIES CASTING TO GRADE BY OTHERS REFER TO KING COUNTY WATER DISTRICT 125 PLANS AND SPECIAL PROVISIONS. RELOCATE FIRE HYDRANT ASSEMBLY INSTALL NEW FIRE HYDRANT ASSEMBLY RELOCATE WATER METER PROTECT UTILITY IN PLACE EXTEND AND CONNECT EXISTING PIPE TO NEW CATCH BASIN/MANHOLE 17 CONNECT AND ADJUST EXISTING PIPE TO NEW/PROPOSED DITCH LEGEND ST 0 STORM SEWER STORM CATCH BASIN/INLET STORM SEWER MANHOLE REMOVE DRAINAGE STRUCTURE NUMBER DITCH ID NUMBER O 20 40 HORIZONTAL SCALE IN FEET 1 1 1 O 10 20 VERTICAL SCALE IN FEET TL 1 T -I A PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- dale wc checkel GTC RWC mwt* CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III DRAINAGE AND UTILITY PLAN AND PROFILE 28 89 , Dbno DR-3 sale 1'=20' 300 290 280 270 260 250 240 230 220 + N z v e W z J x Q #15603 4-7A - FILL �aFi�P T ST CUT ST ST ILL — FI ST FILL, SS 63+00 L J+ \ `♦ `• WALL RW-3.1 •♦ `• S eT— -mbs_' 64+00 -I 142ND ST —(D- ST ST ST ;1 S'�VE — — DR 4-1 #15490 CONCRETO INLET STA. 63+3 33, 13.0 , RT RIM = 26 .33 IE = 264.00(W) 8" DIA DIP; L=7' @ 17.14% L x SEE VALIr'EY VIEW' SEWER ' PLANS' AND SPECIAL-•PROVI x-r- FILL IOt $5458 ST ST -/-- ST FILL 410 0 © 0 O 0 49 4-3) DR 4-3 CONCRETE INLET • STA. 65+16.36, 13.08 RT ♦ RIM = 241.90 `♦ IE = 239.46(W) ♦♦ 8" DIA DIP; L=6'@ 2.35% ♦ LC` FiL MILL - ST ---• S.--ST--ST 0 z ,T�♦ a th �r-Rsr- eaT�66z+0�I-�,L t��er c�L-sa--Fz ,� z ST''. ST ST ST ST FILL � FO.L SEE VALLEY VIEW ca ♦♦ SEWER PLANS ♦ AND SPEC PROVISION. ♦ • ♦ FILL FILL - V MATCH LINE DR-3 42ND 62+30 ' EXISTING GROUND SS 24" DIA; L=131' @15.58% ce W Z Wt00 W °D oZ W C7 Z v Opw� cO W n°a mN Csi O Oi CVOIy�()NnaO OOCa0 VOU o 0Ooou I}aW IINNNNN QCo�5U.NII 11 II II II —WWWW BP It NEW 8" SS W W 24" DIA; L=185' @12.45% 4 - - - PROFILE GRADE BT 0 L 'NEW` 8"SS- W 24" DIA; L=208' @8.92% 63+00 64+00 PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- by ale designed RWC wed GTC PAI^ng RWC Prof seauno 65+00 c6,znw 66+00 UTILITY CONSTRUCTION NOTES: 10 11 12 13 14 15 16 17 REMOVE EXISTING MANHOLE OR CATCH BASIN REMOVE EXISTING PIPE TO LIMITS AS SHOWN REMOVE EXISTING STRUCTURE AS SPECIFIED ABANDON EXISTING PIPE AND/OR CATCH BASIN CONNECT EXISTING PIPE TO NEW CATCH BASIN/MANHOLE CONNECT NEW PIPE TO EXISTING CATCH BASIN/MANHOLE CONNECT WALL UNDERDRAIN TO CATCH BASIN ADJUST EXISTING CATCH BASIN OR MANHOLE TO FINISHED GRADE ADJUST EXISTING UTILITIES CASTING TO GRADE ADJUST EXISTING UTILITIES CASTING TO GRADE BY OTHERS REFER TO KING COUNTY WATER DISTRICT 125 PLANS AND SPECIAL PROVISIONS. RELOCATE FIRE HYDRANT ASSEMBLY INSTALL NEW FIRE HYDRANT ASSEMBLY RELOCATE WATER METER PROTECT UTILITY IN PLACE EXTEND AND CONNECT EXISTING PIPE TO NEW CATCH BASIN/MANHOLE CONNECT AND ADJUST EXISTING PIPE TO NEW/PROPOSED DITCH LEGEND - ST O co STORM ® STORM z O STORM ▪ w REMOVE o: O W z J x 1- SEWER CATCH BASIN/INLET SEWER MANHOLE DRAINAGE STRUCTURE NUMBER DITCH ID NUMBER CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III DRAINAGE AND UTILITY PLAN AND PROFILE O 20 40 HORIZONTAL SCALE IN FEET O 10 20 VERTICAL SCALE IN FEET dale revisions 29 89, Reno DR-4 scale 1'=20' date 7I1)7G17 o to z V w z J t- 2 260 250 240 230 Z J re 0 0 U 220 1- 210 200 FI T CB FH ST ST FILL LL COMCAST L'• ---- 0 SSD _ 0 __ KF;I c I% 5-7 5- ST SS i #15421 TEL -x•— FILL . FILL x r .a 1i• • • 0 OUTFALL ST -� 424b AVE S. •' ST ' ST ST ST ST 5_9) CB - —R-FI FILL ,•FILL 5-8A) PRE-TREATMENT UNIT A, SEE SPECIFICATIONS 0 SEE VALLEY VIEW SEWER PLANS AND SPECIAL PROVISIONS 24" DIA; L=81' @ 4.94% PROFILE _GRADE EXISTING GROUND, 0 0 CL 7 N H t0 f-mm�n? '3Ne— i tz II N N WZ� 11 11 oavCLwW -J 24" DIA; L=57' @ 0.91% 24" DIA; L=37' @ 3.49% 67+00 68+00 69+00 2� ROCK PAD DRD-2AT OUTFALL Q a 5-3 NEW CULVERT SEE SHEET CV-1 260 260 250 250 240 240 230 230 220 220 210 210 200 200 5-19 CB D +00 5-14 S 0 HYDRANT 5-15 fr 5-5 • FILL 0 TREATMENT UNIT C, SEE SPECIFICATIONS COMCAST CENTURY LINK SS 71+00 #15405 UTILITY CONSTRUCTION NOTES: O7 REMOVE EXISTING MANHOLE OR CATCH BASIN 0 REMOVE EXISTING PIPE TO LIMITS AS SHOWN Si- CB — 5-22 SEE VALLEY VIEW EWER PLANS =AND SPECIAL PROVISIONS 5_23) TREATMENT UNIT B, SEE SPECIFICATIONS EXISTING GILLIAM CREEK CULVER (36' CONC) O #4217 OUTFALL 12" DIA; L=33' @ 0.55% PROFILE GRADE EXISTING GROUND 12" DIA; L=68' @ 2.57% 70+00 71+00 REMOVE EXISTING STRUCTURE AS SPECIFIED ABANDON EXISTING PIPE AND/OR CATCH BASIN O5 CONNECT EXISTING PIPE TO NEW CATCH BASIN/MANHOLE CONNECT NEW PIPE TO EXISTING CATCH BASIN/MANHOLE CONNECT WALL UNDERDRAIN TO CATCH BASIN ADJUST EXISTING CATCH BASIN OR MANHOLE TO FINISHED GRADE (i ADJUST EXISTING UTILITIES CASTING TO GRADE 11 12 13 14 15 16 17 260 250 240 230 220 210 200 ADJUST EXISTING UTILITIES CASTING TO GRADE BY OTHERS REFER TO KING COUNTY WATER DISTRICT 125 PLANS AND SPECIAL PROVISIONS. RELOCATE FIRE HYDRANT ASSEMBLY INSTALL NEW FIRE HYDRANT ASSEMBLY RELOCATE WATER METER PROTECT UTILITY IN PLACE EXTEND AND CONNECT EXISTING PIPE TO NEW CATCH BASIN/MANHOLE CONNECT AND ADJUST EXISTING PIPE TO NEW/PROPOSED DITCH LEGEND ST STORM SEWER O STORM CATCH BASIN/INLET O STORM SEWER MANHOLE REMOVE (2-11) DRAINAGE STRUCTURE NUMBER 0 DITCH ID NUMBER MEW 0 20 40 HORIZONTAL SCALE IN FEET 0 10 20 VERTICAL SCALE IN FEET i L PUBLIC WORKS DEPT. -ENGI N EERING-STREETS-WATER-SEWER-PARKS-BUILDING- br daft desired RWC tram GTC 1 cH2nx: CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III DRAINAGE AND UTILITY PLAN AND PROFILE 30 89 fie ea DR-5 scale 1•=20' • 390 430• • 420 • • 410 • • 400• • UL �Z .11 CIO Ce EXISTING GROUND A" W . . . . 'PROFILE GRADE BPO — •BT ou ^+aiwva$` a 00 0 • IJJMt+1 ?e • Z2 I II it II 0 V W w w w w PROFILE . GRADE °SEWER .8". DIA 12" DIA; =14' @ - 10.16%J oa" W W 8" BP IBT, ;4". C °12" G. •370 P BT, 12" DIA; L=24' cc cc �.12" DIA' •L=19 • @ • 15.53/o 18" DIA 'DIP; L=55' @ 4.79%' ' ' • 390 LxISTING ' ' 380 • GROUND • 'SS • • - • 360' o:5o°io • 370 • • 360•• 430" 420" ' 410' ' 400' •PROFILE GRADE • 174 .cn 1. o1 .N01 rl� ^(V '1'"' DIA; DIP L=51' a@ : 00.5O% .12" DIA; DIP .L,24' @ . 0.50% . . • . • . . EXISTING: GROUND 410 ' 400 390 380 ' '380 370 360 41-0' ' • • d'��gv. A-)FraW. 400' • OU(1:13W0 . .Q M 390. BT .4..G`•1.12' \W .12" W .12" DIA;.L14' @ 14.5.0% • PROFILE GRADE • • Qas F- M ?Nato W . . MM . . . . NZZg 11 11• . ore cxO .AW• • • OW• CD CI) • • • • ter EXISTING ' GROUND • • • • L m PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- M deaiprcd drown KRW GTC 9 Rwc prydir bkno CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III DRAINAGE PROFILES no data revisions Q r L rT Col; 31 89 Re no DR-6 scale 1"=20' date 2/2112017 EXISTING GROUND 380 • 370 t71 CC .o N + I "' N �duMNry .Rp ' 11 • N ll.l cmN_ • •aw ❑Ua❑a) •PROFILE • • 380 • • • • GRADE ..370 .. crui• Z Ors La sr I O 38bCl —I w� I I 370 36 u( of cn . N ? . . rryM , . a>- W . . . NF II I .H EU.FWW CC • •12" DIA; L=15' @ 360 •.'. 19.47% • 36012" DIA; L= 35Co� • i0.49b 12" DIA; L=30' a. 2.93% • 380 pROFI _E, GRADE , • • •360 ' • ' '350 ' 360 • 350 '340 • '330 • '320 •PROFILE • 'GRADE • 0w nT.0• c• Z� 11 . oV -c4 •:BT u - • EX(STING. GROUND: • • 360 360 • ' 350 ' 350 . c W n EXISTING a "•' w ,^'ui GROUND . „ N 340 340•••• •:m?�W srs 012".G. . . . . 8" DIA' DIF' L=6' @' 0.50% • • SEL*R• • 330 • 330 18".DIA; L=19' @. 3.00% . . • • 320 • 320 PROFILE GRAbE . cc r: n W •c w �rnc`c'•�w�- `^ csco cc co • 360 360• • 350 350 r . a - us. . . EXISTING M 0 � 1J) 7 GROUND m z m 1.1 4 .BPI'8 . al '4' G . . . . . . 330 . 12"DIA; _=40' @ • 7 18% ° • • 12"BGP 8- T12" DIA; L;13' @• 0.46% . 121' DIA; L=6' @ . 1.33% - . 320 330 320 • PROFILE GRADE' 1— .cc c •12"13 4" G L=20' . ' 12" G DIP; 5.15% • •360 •350 • •340 • •330 PROFILE. GRADE EXISTING GROLND 330'• •• 320• ;CONNECT: TO .EXISTING , PIPE 31'0'• "'• . 8" PIA; L=15' @ : 3:00°/< • •320 300 ' • BP T BT s w •330 •320 • •310 . 12" DIA- DIP; L=18'• • • @ 4.72% •300 PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- ors dram duclud GTC Psi ue RWC Psi* c6,2nu CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III DRAINAGE PROFILES 32 89 Poe no DR-7 C t r scale 1'=20' '340 .330 . PROFILE. GRAPE '320 310 rh o � C W. . N 0 • f• z 11 It • • '340 '340 0 4"G 12"G: 2" DIA; DIP L=5' @• 3.40% - • 330 '330 - EXISTING • • GROUND •• 12" DIA; L=14' @:• 5.79 °• '320 '320 '310 '310 • . 12' DIA; DIP L=37e@ '3.57%' 4- BP BT . • M W O CO E" SS • 340 • 330 '310 • • • ,M, M0^ 'W.N W .0.01.E EXISTING o N „, GROUND + II a 320 •300 �{�y CO MY.� W I Z� ov_.w 310 .290 • 280 PROFILE • GRAD'E 0Uv 11 11 . ww• . :.I BT Yv• BP. . BT. .12" DIA; L=.19' @ .01 aj1 {• Q. W w :12" IjIA 310 300 290 300 290 • 280' 12"DIA; L=22' @ 270 4- w M 1-M •• W. -- r rr�� ?fig 17_N W ,N U"�— CNN �wtoJGNOGiD MC. rn w.-.11 N 7U WNCV r7n• kOCW WN zZ 11 u• w• �Zn II o�v�w' oN' Ot 4, EXISTING _1 • J GROUND . . . . BT IPW . .BT r1 . - PIROFIL,E. 12"G GRADE 300 • 290 280 - 12" DIA; DIP :L 5'.@. 6:40% '12" DIA; DIP L=18' @' 3.94°h • • 270 EXISTIN GROUN 290 280 CONNECT TO EXISTIN . 270.. • .... 12".DIA;.L=9: @ :12 260 . 250 I- . . 4 • 12-DIA DIP; L=60'@ '14.77°/ .PROFILE GPADE •Bp80BT 6 '4"G. • n19 fz 18"SS 290 280 • 26D • • 270 25D. 260 24 8;' DIA DIP; L=19' @ 0.6 °/u . ' 1'2"'DIA' 250 230 12" DIA;L= 19' @ • 2.58% • • • • EXISTING GROUND •' �PROFILE GRAPE. . J . . . . . r6 • m rn • �N1�1� ag TV'9WNN v Cl u n' cO UUvL W 8T• L12Q1(• L=14'@• 7.36% v BTr.• • To v •1X� to 0 . 1• 12" NA 'DfP; 8" DI PBT• • L=19'@• 260 ' PROFILE' • GRADE • 240 'EXISTING 'GROUND • 250 240 DIP; L=25' @ • 0.68% 58%0 230 230 220 210 0 Lh• It .enn .u1U�WCN,bn W z • ii- ii O U) CC4OCI 'o• . BT. Li 4" BP 3"•DIA;. L=7 DIP. . 0 57% . 8 DIA; L=19' DIP. @ . 0.53% . . . . •240' '''230' 220' • • • . .210' •'' PUBLIC WORKS DEPT. -ENGI N EENING-STREETS-WATER-SLWLN-PARKS-BUILDING- br designed drew CAW decked GTC Ppl erg RWC field bk no dam! CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III DRAINAGE PROFILES date revisions 41! Mill: r rT 33 89 fileno DR-8 scale 1'=20' Aare 201/017 •230 •220 • •210 •200 th - c?o •u1. .Cew•0 0 4' • O' ri uZMO p W0 . w o'"'r- 230 s W N U� • zz�11. i. S,Na,CL.Wy� . . - - - `. .�. 220 12' DIA; L=7'@' 2.85% • 210 ••200 • 230 220 • 210 • 200 t- Z II oovldL • N • W m m • • • N N Ij O V' V In ❑iC) NN NQ y II 11 tP •00N�fWW.WM. • 12'G- • • EX STING . GROUND• • • • '12" DIA; L=7'-@• D.43% • • 12". D A; L=5 @ 020%., • • 12' DIA;L=6' @ - 0.17% • • 12' DIA; L=34' @- 22:94% • • PROFILE GRADE —'OU1FALL • "IF = 205.00 • • •42Nb 70+3876 210 - •200 - (57.57 RT' t0 si• .1 12". D .12" DIA;.L=8' PROFILE GRA EXISTI G • GROUND • • OU.TFALL. .IE=211.65 42ND 69+76.86 . (39,12 LT) . A. L=12' @ 0.50% . . . . @- 0.25% - • - - 7E. • 24 230 •22 •210 • 200 •190 •ss.• .to � to • u. z o v . aNOUfAZ vv�ZO) �' OC In ao Np6 �rrnn� cpze Oi NCl 4. ai • - WG+D N 00 �011 CN9 �'n'0 n .NV 1"`rZ_.11 u•u• • -`��1 •u u • PROFILE• • o 2 • v ce u. w ui • • 0a Ntz of W • GRADE. • .EXIST SEWEFf•� • - •• . •• U�.�— _ • • FJCSTING 8 DIA••• .GROUND • GFLL•IAM• t • • CREEK ,.;/ • 30"-DIA; L=34' RCP' CL. V. • SO EXIST SEWER '24" DIA - PROFILE •GRADE EXISTING - 'GROUND crt �.0. rnm. Q+00 111'S'O •N a.H.r. II x C rz_ NN• • u u W W J n z,r13• �(vZ 1npr WO • ,Poo r,1NT • • IpW,7NNIn { cNV 1� r u N N m N. I1 N uiZZ2u u -Vp • O d0vlYWW : : .nlecli? JLI ' 24" DIA; L=36'@- 0.89%' - • 12' DIA; L=24' @ •0,50% ' 12" BTBT • • • DFA;•L=7'@ • 0:43%' • 12' DIA; L=38'•@ •7.71'/0• • - • 12'' DIA; L=68: �1a •• 1 44% 24.0'. 230 • 220•- 21• 200 • 190 • PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- die RWC ICRW checked GTC pq -7 RWC c4,2»u CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III DRAINAGE PROFILES ( 34 89 9e n° DR-9 scale 7'=20' • c W CC ' 360 350• ' 12' DIA 340. 330. 320. Linn 000 ' QCC g4 g4M N Z Z II II. I1. 0U�CK •0WWW PROFILE - GRADE • • 8" WATER . . . . L`=15' @' 0.53% SS . . .12" DIA;. L=63' Q . 8.20% 360 In 350 12" DIA; DIP L=36'@ 1- co • • J • rn h • Csljj Z I II II . OUvKWWW• 4"G ' d' .o f -EXISTING— GRCUND 0dN M N,M • . ZII. II II. . OUv�WWu}.. BTI :JV J- 358% SS° .BT . . . BP •• . IT DIA; L=35' @ 7.67% 12" DIA; L=' 2`@ 12'W' .SANE. STRU.C-URE cT, 1-+ II d • UnWg. Z2.'II • °eaW . • 360 • 340" • '8" DIA; L=t8'@' 5.39% `-' • • • 330 350 • • 340 • • 330 DETENTION, VAULT,,- 1 SEE DRD•-3. , • , • BP BT 12"•DIA; 12" DIA;1=6'•@ L L=51' @ 0.45% 0.33%. "350• • 340. • . 330 • • • 3 J O M ui Z # F N -cruiZ3r II.N .ay�J` a+Jv F�W� mwM tV 11 �r� • 0 0 IJJ cott R: W • 350 ••'C'EXIST IN. • • • 340• • 12" DIA; L=22' @ • 2.41% 30DIA; l=' 2'.@ :12.92% : : • DE-ENTION VAULT,, 320 SEE DRD-3 • .360 "340 •330 320 PUBLIC WORKS DEPT. -ENGINEERING-STNELTS-WATER-SEWEN-PARKS-BUILDI NG- dale designed RWC chedorl GTC PM •n7 na! a: RWC field ar •o cM CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III DRAINAGE PROFILES ae e revisions r L r- L 35 89 file no DR-10 scale 1"=20' date 221/2017 ORIFICE 3 = 0.40" DIAM. ORIFICE 2 = 0.35" DIAM. JAILHOUSE OPENING INLET IE= 331.60' STEPS OR LADDER CB TYPE 2, 54" DIAM MANHOLE RING AND COVER WITH LOCKING BOLTS, MARKED "DRAIN" 12' OUTLET RISER TOP= 341.10' ORIFICE EL = 339.40' ORIFICE EL = 337.35' OUTLET 12" DIAM IE= 331.60' ORIFICE 1 = 0.25" DIAM. 6" CSBC UNDER STRUCTURE, TYP 1 FLOW CONTROL STRUCTURE CB2-19 L ro• C L L PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- h designed RWC cileekoi GTC FtWC cM2m! CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III DRAINAGE AND UTILITY DETAILS 36 89 Ale no DRD-1 l scale ADJUSTMENT RISER ABOVE CATCH BASIN CONSTRUCTION GEOTEXTILE FOR PERMANENT EROSION CONTROL IF 2 LONGITUDINAL STRIPS OF GEOTEXTILE ARE REQUIRED, SEW SEAM INSTEAD OF OVERLAPPING L1 RECESS 1" RIM ELEVATION AS SHOWN IN DRAINAGE PROFILES ROADWAY SURFACE (PROJECTED) SECTION CURB FACE r_ AT BOTTOM OF CURB OCATCH BASIN INSTALLATION SCALE: NTS L2 DITCH INVER — 00C � boo PLAN A-- C- PIPE AND DITCH oo° O 00 oO <Do O ' � 0000 o 0 0006og SECTION A -A w QUARRY SPALLS 12" THICK PAD TYP CURB (FOR REINFORCING /-- SEE C A STD DETAIL STORM-11) SEE TABLE A FOR L2 AND W DIMENSIONS (TYP) B f STD FRAME AND VANED GRATE TABLE A: DIMENSIONS FOR ROCK PAD PIPE DIAM. L2 W L1 12" 8' 7' 6' OROCK PAD AT OUTFALL SCALE: NTS DR-5 GENERAL STORM NOTES: 1. DRAINAGE STRUCTURES (CB'S, MH'S, STORM DRAINS, ETC.) AND RELATED DETAILS SHALL CONFORM TO CITY OF TUKWILA STANDARD DETAILS, UNLESS OTHERWISE NOTED. 2. FOR CATCH BASIN OR MANHOLE PLACEMENT, THE OFFSETS SHOWN ON THE DRAINAGE PLANS AND PROFILES ARE TO THE CENTER OF STRUCTURE. FOR TYPICAL CATCH BASIN INSTALLATION, SEE DETAIL THIS SHEET. 3. PROVIDE CATCH BASIN GUTTER PANS PER CITY OF TUKWILA STANDARD DETAIL DS-15 WITH THE EXCEPTION OF THE GUTTER PANS TRANSVERSE SLOPE, SEE TYPICAL ROADWAY SECTION. 4. FOR CATCH BASINS WITHIN THE ROADWAY AND NOT ADJACENT TO A CURB, THE RING AND COVER OF THE CATCH BASIN SHALL BE ROTATED THE FARTHEST AWAY FROM THE VEHICLES WHEEL PATH. 5. VANED GRATES AND FRAME (CITY OF TUKWILA STD DETAIL DS-06 AND WSDOT B-30.10-01) SHALL BE USED UNLESS OTHERWISE NOTED. ALL GRATES SHALL BE BOLT DOWN AS SHOWN IN THE STANDARD PLAN. RECTANGULAR SOLID METAL COVER SHALL BE PER CITY OF TUKWILA STD DETAIL DS-04. L2 BEVELED END SECTION SLOPE VARIES (MATCH DITCH SLOPE) 12" QUARRY SPALLS POND OR DITCH BOTTOM IF 2 LONGITUDINAL STRIPS OF GEOTEXTILE ARE REQUIRED, SEW SEAM INSTEAD OF OVERLAPPING SECTION B-B PUBLIC WORKS DEPT. -ENGI NEERING-STREETS-WATER-SEWER-PARKS-BUILDING- by dab debarad RWC drawn cabbed GTC poi aN RWC poj db SEE TYPICAL ROADWAY SECTIONS CENTER OF DITCH OR FRENCH DRAIN 6. ALL STORM SEWER PIPE SHALL BE CORRUGATED POLYETHYLENE (SPECIFICATION SECTION 9-05.20) STORM SEWER PIPE SDR 35, UNLESS OTHERWISE SHOWN ON DRAWINGS. 7. UNLESS OTHERWISE NOTED OR SHOWN ON THE PLANS, STORM PIPE SHALL BE INSTALLED CONFORMING TO CITY OF TUKWILA STANDARD DETAIL DS-14B. ALL PIPE BEDDING SHALL BE GRAVEL BACKFILL FOR PIPE ZONE BEDDING (9-03.12(3)). ALL PIPE TRENCH BACKFILL SHALL BE CRUSHED SURFACING TOP COURSE (9-03.12(3)), EXCEPT AS NOTED BELOW OR AS SHOWN ON THE PLANS. 8. THROUGH CURB INLET SHALL BE PER CITY OF TUKWILA STANDARD DETAIL DS-08. 9. FOR STORM DRAIN CROSSING OF UTILITIES WHERE THERE IS LESS THAN 1'-0" VERTICALLY BETWEEN PIPES, PLACE 1'X 1'X 4" STYRENE FOAM BETWEEN THE PIPES. 10. THE EXISTING UTILITIES CROSSING THE PROPOSED STORM DRAIN ARE SHOWN IN THE PROFILES. ACTUAL PIPE SIZES ARE SHOWN WHERE POTHOLES WERE PERFORMED NEARBY OR A MEASURE DOWN TO THE WATER VALVE WAS PERFORMED NEARBY. OTHERWISE THE CROSSINGS WILL BE SHOWN IN THE PROFILE WITH A STRAIGHT LINE. 11. CONTRACTOR SHALL CONTACT SPU REPRESENTATIVE ROGER COX AT 206-399-2496 A MINIMUM 72 HOURS PRIOR TO ANY CONSTRUCTION WITHIN 10 FT. OF THE 60-INCH WATERMAIN. 2' PROPOSED ROAD EMBANKMENT PROPOSED SIDEWALK CONSTRUCTION GEOTEXTILE FOR PERMANENT EROSION CONTROL (HIGH SURVIVABILITY) DRAIN ROCK 8' DIAM PERFORATED UNDERDRAIN FRENCH DRAIN DITCH SCALE: NTS DR-1, DR-2, DR-3 NOTE: 1. FOR LOCATION SEE DRAINAGE PLAN AND DETAIL 5Q ID BEGIN STATION END STATION OFFSET FROM CL (FT) DRAINAGE TYPE NOTES D1 50+36 51+78 29.00 LT -- SEE WALL PLANS D2 52+40 53+12 26.00 LT FRENCH DRAIN DITCH CENTER OF FD IS 1' FROM BOW D5 57+20 57+82 26.00 RT FRENCH DRAIN DITCH CENTER OF FD IS 3' FROM BOW, WITH 2:1 SLOPE D4 57+35 57+64 28.00 LT FRENCH DRAIN DITCH CENTER OF FD IS 3' FROM BOW, WITH 2:1 SLOPE D6 58+10 58+28 26.00 RT FRENCH DRAIN DITCH CENTER OF FD IS 3' FROM BOW, WITH 2:1 SLOPE D3 53+50 53+72 29.00 LT — SEE WALL PLANS D7 61+85 62+20 27.00 RT — SEE WALL PLANS DITCH LOCATION TABLE SCALE: NTS CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III DRAINAGE AND UTILITY DETAILS date revisions 37 89 file no DRD-2 scale r r- C ebb 9Mnnd7 L 42ND 56+72.87, 100.95 LT 2-18 1S; CLEANOUT F (TYP.) co U1S DRD4 rU D 50' 42ND 56+73.85, 49.63 LT an an an an an an an an an ` ` ` - -- - - - - _ _ _ ACCESS MANHOLE - --_-__ _ -- „FRAME AND COVER ACCESS MANHOLE FRAME AND COVER UD 6" UD 42ND 56+61.54, 100.74 LT UD1 _. Br — —gr .-.—gr-----F'— UD UD UD DRD _ S 158TH ST dT — — p, BP BPBP BP BP BP BP " BP BT re.fR BT BT—BET--- BT BT—BT_6S BT — BT BT BT BP UD D UD 2-18) STORMWATER DETENTION VAULT BP _-- BP BT BT UD UD UD UD 42ND 56+61.54, 100.74 LT — air — —g' -- B BT BT BT /2-19)CATCH BASIN TYPE 2, 54" WITH FLOW RESTRICTORD DRD-1 0 P—DP— ORRO-a 6" DRAIN 0 g7 — — qT — — g- ST 2-10 d8 d8 d8 d8 BT BT — BT BT IS 1S DP — DP ep BT — BT�B18 1S DP d8 d8 a a. )-0a 1S �o f \18 � /yam m 1S DP • 2-14 _r- n I ! 0 S 1S 1S 1S .. IS \1 I U 1 � m 1 0 \ 1 W 1 " 3 I 7' / s 1 " a 1 d8 I I II II II I f \1s Z NOTES: 1. MANHOLE FRAME AND COVER SHALL BE PER vvSDOT STD PLAN B-30.70-03 2. DETENTION VAULT SHALL BE PRECAST STRUCTURE WITH WATERTIGHT JOINTS 3. ALIGN ACCESS RISER WITH INSIDE VAULT WALL 4. VERIFY LOCATION OF EXISTING UTILITY PRIOR TO BEGINNING EXCAVATION OF VAULT 5. CONTRACTOR TO DESIGN AND INSTALL TEMPORARY STRUCTURAL SHORING FOR THE INSTALLATION OF VAULT SEE DR-2 FOR CONTINUATION CONNECT TO DRAINAGE STRUCTURE £V1 42ND 56+58.59 18 44 SEE DR-2 FOR CONTINUATION A 0 5 10 SCALE IN FEET �° ,L ' PUBLIC WORKS DEPT. 9N � y O �d � Y "'s i� flEwMu1w•uw --------------------------- by are awigRad GTC dwba RWC cH2nw CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III STORMWATER VAULT PLAN & DETAILS 38 89 , file no DRD-3 350 340 330 320 0+00 1+00 EXISITING GROUND z 2 N cc 0 0 rFINISHED GRADE 12" INLET PIPE IE=340.10' 0.5% 9 12" INLET PIPE (BEYOND) IE = 340.10' 6" CSBC 12" OUTLET PIPE IE = 331.68' 350 340 330 350 340 330 320 STORMWATER VAULT SECTION DRD-3 TEMPORARY STRUCTURAL SHORING �. — 1 TOP OF BASE SLAB EL = 331.26' 0 z 2 0 5% ACCESS MH FRAME AND COVER —__'—_--`EXISITING GROUND 0'-0" TEMPORARY STRUCTURAL SHQR(MG GRAVEL BORROW (FOR BACKFILL) /-6"UD 0 - 5% z fV � 6" CSBC 320 350 340 330 320 0+00 1+00 DRD-3 PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- STORMWATER VAULT SECTION - by dab RWC docked GTC pW ans RWC dnti tilt WY Pk no CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III STORMWATER VAULT PLAN & SECTIONS O HORIZONTAL10 SCALE IN FEET O 5 10 VERTICAL SCALE IN FEET 39 89 , file no ()RDA scale no data revisions date 2/2112017 BOULDERS (TYP) 4 GC 21+97.37 BEGIN NEW CHANNEL -CONSTRUCTION r • (_QNC:RFTF CUT OLLAR + % 1 - - BACKFILL EXISTING t CHANNEL• - CURVE DATA DESCRIPTION STATION NORTHING EASTING RADIUS LENGTH DELTA TANGENT POB 21+79.33 173069.29 1282431.94 PC 21+97.37 173069.90 1282413.91 PI 22+19.10 173070.63 1282392.19 63.0' 41.86' 38°04'03" 21.73' PT 22+39.23 173057.81 1282374.64 PI 22+64.90 173042.68 1282353.90 PI 23+74.91 172977.84 1282265.03 PC 23+77.46 172976.33 1282262.96 PI 23+89.00 172969.53 1282253.64 40.0' 22.47' 32°11'11" 11.54' PT 23+99.93 172968.74 1282242.13 PI 24+09.10 172968.12 1282232.99 POE 24+24.39 172962.85 1282218.63 L PROPOSED STRUCTURAL MULTI -PLATE ARCH CULVERT' GC 23+22.11= , 42ND 69++$ I ISTI G BOULDERS NOTES: PROPOSED)CULVi 6ERT FOO PROPOSER) 1• A g. ,4" .sfrar GC-LIN/// /' /l ? PLAN 1. CONTRACTOR SHALL DESIGN AND CONSTRUCT TEMPORARY CULVERT STRUCTURAL SHORING SYSTEM PER SPECIFICATION 2-09. 2. CONTRACTOR SHALL PROTECT EXISTING ROCKERY WALL AND MONITOR MOVEMENT OF THE WALL, SEE SPECIAL PROVISIONS. 3. CONTRACTOR SHALL COORDINATE WITH FRANCHISE UTILITY PROVIDERS FOR THE REMOVAL, PROTECTION, TEMPORARY SUPPORT, RELOCATION AND REINSTALLATION OF UTILITY. 4. COARSE BAND SHALL CONSIST OF TWO MAN STREAM BOULDERS, AND FILL THE VOID SPACE WITH 12" COBBLES. 5. CONTRACTOR SHALL PROTECT AND MAINTAIN ALL CL 42ND 220 EXISTING TREES AS SHOWN ON SHEET DM-5. 1 i 210 - 200 190 U z O • F- U Z Q xz UU Zw tZ o ZZ 4 W cri atU LL BEVELED PIPE END WITH CONCRETE SLOPE COLLAR, SEE CVD-2 B CVD-2 V 40 N U m N J / W 4" G COARSE BAND CULVERT FOOTING / v aikei TAP, (I \-- - -- .. - 4C , Yh(ISTING 30" CULVER - ••TO• BE REMOVED. _• EXIST G ROCKERY WALL, SEE NOTE 2. BOULDERS (TYP) TEMPORARY_a _ CULVERT -SHORING, SEE NOTE 1. ` =ACK "EXISTING CHANNEL , 6. TOE OF FILL SLOPE WITH ROADWAY IMPROVEMENTS. PROPOSED GROUND EXISTING GROUND N N w COARSE BAND, SEE NOTE 4 STREAMBED GRAVEL (36" THICK) COARSE BAND BEVELED PIPE END WITH CONCRETE SLOPE COLLAR 0 Z O W + N 0 z O J F- LU z� Ir- a u~, 0ZZ 0 Z U Iw Z N W Q m = 1� 2 U oU W2W// O. DO 'N -EXI I - ING F LEN LOG DISTUR NG CON DO NOT DISTURB EXISTING CONCRETE , - CHUTE 0 10 20 SCALE IN FEET 0 10 20 HORIZONTAL 0 5 VERTICAL 10 22+00 PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- 23+00 die ELEVATION FWVORFR dram piW GTC RWC ad* 24+00 CITY OF TUKWILA 40th - 42nd AVENUE SOUTH ; PHASE III CULVERT PLAN AND PROFILE 220 210 200 190 40 89 file no CV•1 L C L G male 1'=1O' GC -LINE EX 12" G EX 4" G EX. 24" SS _L_ 2'-0" MIN CULVERT FOOTING (7'-0"x2'-3"), SEE CVD-3 K GRAVEL BASE (6") %/\/////////\/\ NOTES: 1. ALL MATERIALS AND WORKMANSHIP SHALL BE IN ACCORDANCE WITH THE REQUIREMENTS OF THE WASHINGTON STATE DEPARTMENT OF TRANSPORTATION STANDARD SPECIFICATIONS FOR ROAD, BRIDGE AND MUNICIPAL CONSTRUCTION - DATED 2014, AMENDMENTS, AND SPECIAL PROVISIONS. 2. THE CULVERT FOOTING HAS BEEN DESIGNED IN ACCORDANCE WITH THE REQUIREMENTS OF THE AASHTO LRFD BRIDGE DESIGN SPECIFICATIONS SEVENTH EDITION DATED 2014, WITH INTERIMS THROUGH 2015. 3. THE STRUCTURAL MULTI -PLATE ARCH CULVERT SHALL BE DESIGNED BY THE CONTRACTOR IN ACCORDANCE WITH THE REQUIREMENTS OF THE AASHTO LRFD BRIDGE DESIGN SPECIFICATIONS SEVENTH EDITION DATED 2014, WITH INTERIMS THROUGH 2015. 4. THE STRUCTURAL MULTI -PLATE ARCH CULVERT SHALL BE GALVANIZED STEEL GAGE 10 WITH 6" PITCH AND 2" DEPTH CORRUGATION AND IN ACCORDANCE WITH STANDARD SPECIFICATION SECTION 9-05.6(8)A. 10 O 5'-0" FLOW LINE 1 10 R=96' JOO 000700 OOL JOB 4 GRAVEL BORROW (6") SEE NOTE 13 16'-0" /--/- ------------- PROPOSED GRADE, SEE ROADWAY TYPICAL SECTION EXISTING GROUND EX. JOINT ELECTRICAU COMM. DUCTBANK izz- 16' SPAN CMP (10 GAUGE) STRUCTURAL MULTI -PLATE ARCHES CULVERT, SEE NOTE 4 EXISTING 36" CONC CULVERT STREAMBED GRAVEL (36" THICK), SEE NOTE 14 is CULVERT SECTION NTS 5. STRUCTURAL MULTI -PLATE ARCH CULVERT DESIGN LOADS: DEAD LOAD OF EARTH & ROADWAY: 125 pcf LIVE LOAD: HL-93 UNIFORM PEDESTRIAN LOAD: 90 psf LATERAL EARTH PRESSURE DUE TO BACKFILL: AT -REST LATERAL EARTH PRESSURE COEFFICIENT, Ko: 0.40 ACTIVE LATERAL EARTH PRESSURE COEFFICIENT, Ka: 0.23 PASSIVE LATERAL EARTH PRESSURE COEFFICIENT, Kp: 4.02 6. ALL CAST -IN -PLACE CONCRETE SHALL BE CLASS 4000. UNLESS OTHERWISE SHOWN ON THE PLANS, CONCRETE COVER MEASURED FROM THE FACE OF THE CONCRETE TO THE FACE OF ANY REINFORCEMENT STEEL SHALL BE 2 INCHES. 7. THE NOMINAL BEARING RESISTANCE OF CULVERT FOOTINGS SHALL BE TAKEN AS 12.5 KSF FOR THE SERVICE LIMIT STATE (1" SETTLEMENT) AND 8.5 KSF FOR THE STRENGTH LIMIT STATE. 8. SUBMIT SHOP DRAWINGS OF CULVERT TO ENGINEER FOR REVIEW PRIOR TO FABRICATION. IN ACCORDANCE WITH SPECIFICATION SECTION 7-02, SHOP DRAWINGS SHALL INCLUDE ALL ACCESSORIES AND APPURTANCES FOR A COMPLETE INSTALLATION. PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- by doh RWC GTE soma RWC Vol din fide kk no cM2m: EX 12" W 9. PROVIDE A MINIMUM OF 2.5 FT OF COVER OVER CULVERT FOR TEMPORARY TRAFFIC LOADS. 10. DIVERT WATER AROUND WORK AREA DURING CONSTRUCTION IN ACCORDANCE W/ SPECIAL PROVISIONS. CONTRACTOR SHALL CREATE DIVERSION PLAN AND SUBMIT FOR APPROVAL TO THE ENGINEER. 11. THE CONDUITS, JUNCTION BOXES, AND UTILITIES ARE SHOWN FOR REFERENCE ONLY. THE CONTRACTOR SHALL COORDINATE THESE PLANS WITH THE ELECTRICAL, I.T.S. AND OTHER CIVIL PLANS. 12. THE LOCATIONS OF ALL EXISTING UTILITIES WITHIN THE VICINITY OF THE STRUCTURES SHALL BE VERIFIED BY THE CONTRACTOR PRIOR TO EXCAVATING. 13. GRAVEL BORROW SHALL BE PER WSDOT STD SPECIFICATION 9-03.14(1). 14. STREAMBED GRAVEL SHALL CONSIST OF A WELL BLENDED MIXTURE OF AND12" OTWOEMANPS REAMROX /)BOULDERONE r(APPROXM10%), PER BOULDER WSDOTO STD X %) SPECIFICATION 9-03.11(2) AND 9-03.11(3). 15. BACKFILL AROUND CULVERT WITH GRAVEL BORROW UP TO 12" OVER THE TOP OF CULVERT. CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III CULVERT DETAILS NEW ST no Me revisions 41 89 file no CVD-1 scale rem an1nnn 7'-16' VARIES r BOULDERS (TYP.) • 4, 3 0011•11 iv •• WOO 00O• • 0 '• I.0 •0)0 000000 000000 000 0 000 �.�0 0000600 ANCHORAGE POINTS APPROX 18" ON CENTER FULL PERIPHERY 36" THICK STREAM BED GRAVEL PROFILE GRADE 00 •-•0.•-•0 000000 ��� 000 Oo00o00 00000 000 0 000 0 ,�� 6o000o0600�0 SECTION 2'-0" J SLOTTED CONCRETE MIN NOTES: 1. TYPICAL DETAILS ARE SHOWN. ACTUAL DETAILS FOR CONSTRUCTION PER ENGINEER OF RECORD AND PROJECT PLANS. FOOTING (BY OTHERS), TYP END ELEVATION NTS — CONCRETE COLLAR (DESIGNED BY OTHERS) STANDARD HOOK OR ANCHOR BOLTS BOLT DIA. & LENGTH TYPE 4" X 6" ANCHOR BOLT 4" X 19" X 5" HOOK BOLT EXISTING GROUND I SNOTE 3 SECTION ANCHORAGE POINTS 18" APPROX SPACING, TYP OR AS REQUIRED SEE NOTE 1 2:1 SLOPE SEE NOTE 2 NOTES: 1. COORDINATE TOP STEP DIMENSION WITH PLATE LAYOUT AND EMBANKMENT CONTOURS. 2. COORDINATE BOTTOM STEP DIMENSION WITH PLATE LAYOUT AND STRUCTURE LENGTH FACTORS. HYDRAULIC FORCES AND APPLICABLE SCOUR ANALYSIS ALSO MUST BE TAKEN INTO CONSIDERATION. A MINIMUM 6" BOTTOM STEP IS RECOMMENDED. 3. TERMINATE SLOPE COLLAR AT ELEVATION APPROPRIATE FOR SITE CONDITIONS AND PROJECT REQUIREMENTS. THE SLOPE COLLAR SHOULD EXTEND AT LEAST TO THE BOTTOM OF THE TOP STEP. 4-#4 BARS TO BE CONTINUOUS FOR THE LENGTH OF SLOPE COLLAR NOTES: 1. TYPICAL REQUIREMENTS SHOWN. FINAL DESIGN BY OTHERS THAN CONTECH. END DETAIL NTS #4 CLOSED STIRRUPS, TYP @ 18" OC TYPICAL SECTION OF SLOPE COLLAR INSIDE FACE OF MULTI -PLATE ARCH CULVERT 03/4"x6" ANCHOR BOLTS @ APPROX 18" OC DOUBLE NUT EACH BOLT CONCRETE COLLAR SECTION NTS r r-T C L PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- by RWC cluckad GIG rea RWC dir cN2,m: CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III CULVERT DETAILS 42 89 , new CVD-2 t scale 146'-41/4" 1 in 4 v ELEV. 197.02' BEGIN CULVERT �J pIL PLAN #5 f 1 & #5 I —I - 146 SPA. © 1'-0" MAX = 145'-11" #5 E 1 - 146 SPA. @ 1'-0" MAX. = 145-11" #5 W/ 2'-7" MIN. SPLICE, TYP. x' #5 W/2'-7" MIN. SPLICE, TYP. FOOTING BEARING • • • • • • er▪ n (V #5 W/ 2'-7" MIN. SPLICE, TYP. 3. #7 L-1 - 292 SPA. @ 6" MAX. = 145'-9" ELEVATION PUBLIC WORKS DEPT. DO NOT SPLICE MORE THAN 50% OF BARS AT ANY ONE LOCATION. STAGGER SPLICES A MINIMUM OF 2'-7". • >soe -ENGINEERING-STREETS-WATER-SEINER-PARKS-BUILDING- M ere designed RWC GTC RWC field bkno ELEV. 202.47' END CULVERT cM2xu CE BEARING 1" TYP. STRUCTURAL MULTI -PLATE 1 ARCH CULVERT 71 TOP OF FOOTING FOOTING KEYWAY DETAIL FOOTING BEARING #5 - 4 SPA. 3 - #5 @ 2 EQ SPA. @ 1'-0" MAX. = 3'-10" I 1--= 1'-41/2' #5 - 7 SPA. @ 1'-0" MAX. = 6'-3" fV #5 r1 I #5f1 • • • 1 •\ SEE FOOTING KEYWAY DETAIL THIS SHEET II,-#5n • • cn U #7 L-J #5 - 7 SPA. @ 1'-0" MAX. = 6-3" TYPICAL SECTION CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III CULVERT FOOTING DETAILS no ew revisions Q' r•••• 43 89, He no CVD-3 scale Fla.. ryni7 PS-UT-001 434540.d9n r SCL 5-2 to EX SCL 1-5 SCL 5-2 to EX SCL' SCL 1-4 to TP 5-2 COMM SCL 1-1 to TP 5-1 SCL 1-1 to SCL 5-2 SCL 2-2 to SCL 5-1 SCL 2-2 to SCL 5-1 OCC 6-4"C MATCH LINE UT-5 160TH S CL 3-4"C 'I • 1 I I OCC 2-4"C I x '0 m: ZY 1-4" C x l 1.,m = 1 I I ►ji 1•- I 1 i I o. 0 l0 ,r EX TP1-1 I� —, ! yj CCc4'-4"C—w a. CL34"C—' - ZY-1-4" C - I --49400�--..-- -- -t S-- ��Y_� <<- 1 1 — — — — w — — W — �F1-, ). t- sx I 0 SCL 5-2 to EX SCL 1-5 SCL 5-2 to EX SCL 1-5 4-4"C ST vv ®® ®® ®® 10-4"C�j 4-5"C �I( #15857 WALL RW-1 L ! s -x "'Ili!Ti _Coy• _'T �T cIpT — • o ...o ,. — iI i 2ND S. S. WALL RW-1 R CC 2-4"C S CL 1-4"C CC 2-4"C O CC 1-302 CL 1-4"COS EX SCL 1-5 (V630) O SCL 1-4 SCL COMM (1)) SCL 2-3 to SCL 1-4 ®4 O COMM 2-4" C — CC 2-4"C CL 2-4"C ZY 1.4"C STUB SERVICE CONDUIT FOR FUTURE CONNECTION 0UG SERVICE TO 15837 42ND AVE S. 00 ©O 10` p G go go O2 CL 1-2 O2 CC 1-5 SCL 2-3 to SCL 1-4 CO M SCL 1-1 to TP 5-1 SCL 1-1 to SCL 5-2 SCL 2-2 to SCL 5-1 SCL 2-2 to SCL 5-1 6-4°CO 4-5' C O2 CC 1-4 CL 1-1 OCC 1-4"C S CL 1-4"C UG SERVICE TO 15854 42ND AVE S ♦ST —'— SCL 1-1 ®® ®® 4 (J( SCL 2-3 to SCL 1-4 COMM QC) SCL 2-4 to SCL 1-1 0® SCL 2-1 to SCL 1-1 SCL 2-2 to SCL 5-1 (DC) SCL 2-2 to SCL 5-1 6-4"C 4-5"C SCL 2-4 to L 1-1 SCL 2-1 to CL 1-1 s� D 0 -- P _BP BP:.. BQ .- DT DT DT-- _ IT___ ST el-ST br ST ®01SCL 1-1 to SCL 1-2 2-4"C CL 1-3 ®CC 1-6 CC 2-4"C CL 2-4"C ZY_ 1-4"C #15838 NINO UTILITY UNDERGROUNDING NOTES: OSCL DISTRIBUTION VAULT, FOR TYPE/SIZE SEE STRUCTURE LOCATION TABLE ON DWG UTD-3 OTELECOMMUNICATIONS VAULT, FOR TYPE/SIZE SEE STRUCTURE LOCATION TABLE ON DWG UTD-4 OTERMINAL POLE, INSTALLED BY SCL, SEE STRUCTURE LOCATION TABLE ON UTD-3 OSCL DISTRIBUTION DUCTBANK, SEE DETAIL 1 ON DWG UTD-1 O5 TELECOMMUNICATIONS DUCTBANK, SEE DETAIL 4 ON DWG UTD-2 6 UTILITY POLE (INCLUDING GUY ANCHORS) TO BE REMOVED BY OTHERS (SCL) OUTILITY POLE TO REMAIN IN PLACE Og PROTECT UTILITY IN PLACE PRIVATE SERVICE TRENCH 10 EXISTING ELECTRIC METER (LOCATION APPROXIMATE) 11 ADJUST VAULT/CASTING TO MATCH FINISHED • GRADE LIj z LEGEND — • iY — A = U CENTURYLINK 0 20 40 SCALE IN FEET - BP — BURIED POWER BT ST SCL CC CL ZY 4-4"C BURIED TELEPHONE/COMM STORM DRAIN SEATTLE CITY LIGHT COMCAST CENTURY LINK ZAYO FOUR 4" CONDUIT (TYP) NOTES: 1. REFER TO DRAINAGE AND UTILITY PLANS (DR SHEETS) FOR WORK RELATED TO THE RECONSTRUCTION OF THE STORM DRAIN AND FIRE HYDRANTS. 2. REFER TO CHANNELIZATION, ILLUMINATION, AND SIGNING PLANS FOR WORK RELATED TO THE INSTALLATION OF A NEW STREET LIGHTING SYSTEM. 3. THE MINIMUM RADIUS FOR DISTRIBUTION POWER CONDUIT IS 12.5' EXCEPT AS NOTED OTHERWISE. THE MINIMUM RADIUS FOR COMMUNICATIONS CONDUIT IS 5' EXCEPT AS NOTED OTHERWISE. M! r L 4. DUCTBANK CALLOUTS ON THE UTILITY UNDERGROUNCIIII - DING PLANS DO NOT INCLUDE THE CONDUITS FEEDING PRIVATE SERVICES. REFER TO SHEET UTD-5 FOR THE NUMBER OF CONDUITS TO EACH PROPERTY AND FOR THE VAULT NUMBER THAT FEEDS EACH SERVICE. 5. REFER TO TABLES ON DRAWINGS UTD-3, UTD-4 AND UTD-05 FOR TYPE AND LOCATION OF NEW VAULTS, THE NUMBER AND SIZE OF CONDUIT BETWEEN EACH VAULT, AND THE NUMBER OF CONDUIT TO EACH PRIVATE SERVICE. PUBLIC WORKS DEPT. 4 -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- EWH EWH NWiE BPS Pd Mq BPS PI* Raid CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III UTILITY UNDERGROUNDING PLAN 44 89 we no UT-1 l scale 1"=20' 00 2-4"C O O 4-4"C 4-5"C 0® 00 SCL 2-1 to SCL 1-1 0.1 M N x UG SERVICE TO 15827 42ND AVE S. 1-3"C SCL 2-8 to #15819 1-3"C SCL 2-8 to #4059 SCL 2-3 to SCL 1-4 COMM SCL 2-4 to SCL 2-1 SCL 2-4 to SCL 1-1 SCL 2-2 to SCL 5-1 SCL 2-2 to SCL 5-1 L SCL 2-1(V12) 1O #15827 ®1-3"C SCL 2-8 to #1582 SCL 2-1 to SCL 2-6 SCL 2-4. to SCL 2-1 SCL 2-8: to SCL 2-1 — 1-3"C 6-4"C I®®ISCL SCL 22-8"to 2-4"C G G 00 SCL 2-3 to SCL j-4 COI1M SCL 2-4 to SCL 1-1 SCL 2-2 to SCL 5-1 SCL 2-2 to SCL $-1 CL 2- 0UG SERVICE TO 15826 42ND AVE S. #15826 pm 0UG SERVICE TO 15820 42ND AVE S. 8 P. 00 — CC 2-4"C CL 2-4"C ZY 1-4"C 00 2-3"C 6-4"C 4-5"C #16819 CC 2 2"C CL 2-2"C #15820 SCL 2-2 to SCL 5-1 SCL 2-2 to SCL 5-1 4-5"C O4 SCL 2-2(V2 010 t\ 4-5f"C � zz'<Z CC 1-4"C CL 1-4"C iCC 2-1 CL 2-1 UG SERVICE TO 15819 42ND AVE S. UB 3"C FOR TURE POWER RVICE to #4059 — L 3-6 to SCL 2-2 L 3-6 to SCL 2-2 CL 2-2 CC 2-2 ZY 2-1 0 1.49 SCL 3-4 SCL 2-4 SCL 3-2 SCL 3-7 to SCL 2-3 COMM SCL 2-4 to SCL 2-1 SCL 2-4 to SCL 1-1 SCL 3-6 to SCL 2-2 SCL 3-6 to SCL 2-2 6-5"C O 4-5"C i VACANT NO PO SCL 2-3 SCL COMM CC 2-4"C I CL 2-4"C ZY 1-4"C CC 3-4"C I ' CL 3-4"C ZY 1-4"C #15808 1-3"C SCL 2-8 to #15819 2-3"C 1-3"C SCL 2-8 to #4059 SCL 2-3 to SCL 1-4 COMM �@) O SCL 2-4 to SCL 2-1 �� SCL 2-4 to SCL 1-1 0® 00 to to to SCL 2-4 SCL 6-1 SCL 2-4 1 SCL 2-4(V4) SCL 2-4 to SCL 2-1 SCL 2-4 to SCL 1-1 O4 4-4C O 0 00 O 6-4"C O 4-4"C 4-5"C OS CC 2-4"C ®4-5"C SCL 3-7 to SCL 2-3 COMM SCL 3-6 to SCL 2-2 S IL 3-6 to SCL 2-2 00 PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- by 00 00 ®0 deb ®0 ®® 00, 00 00 8-4"C 4-5"C SCL 3-7 to SCL 2-3 COMM SCL 6-1 to SCL 2-4 SCL 3-4 to SCL 2-4 SCL 3-2 to SCL 2-4 SCL 3-6 to SCL 2-2 SCL 3-6 to SCL 2-2 EX CL 2-3 Om CC 2-4"C CL 2-4"C CX® 00 ATCH L SCL 3-7 to SCL 2-3 COMM SCL 3-2 to SCL 2-4 SCL 3-6 to SCL 2-2 SCL 3-6 to SCL 2-2 dned EWH EWH BPS BPS Po;d field bk no SCL 6-1 to SCL 2-4 SCL 6-1 to SCL 6-2 44'CO NE UT-6 158TH ST 0® 00 00 SCL 3-7 to SCL 2-3 COMM SCL 3-4 to SCL 6-2 SCL 3-4 to SCL 2-4 SCL 3-2 to SCL 2-4 SCL 3-6 to SCL 2-2 SCL 3-6 to SCL 2-2 8-4"C O 4-5"C CC 6-4"C CL 1-4"C ZY 1-4"C — BT — —BT — NB 57+00' S I �F' I ( l UT-6 158TH ST (E) 4-4"C SCL 3-4 to SCL 6-2 4' 4' SCL 6-1 to SCL 6-2 0 00 0 20 40 SCALE IN FEET UG SERVICE TO /-- 4066 S. 158TH ST �CC 2-4"CBT Zy 1-4"C, #15660 Gam- ao 10-4' C 4-5" G #4066 10 SCLN2- 0 W oST Z F J #1565 x 0 SCL 3-7 to SCL 2-3 COMM SCL 3-2 to SCL 2-5 SCL 3-2 to SCL 2-4 SCL 3-4 to SCL 6-2 SCL 3-4 to SCL 2-4 SCL 3-6 to SCL 2-2 SCL 3-6 to SCL 2-2 UTILITY UNDERGROUNDING NOTES: SCL DISTRIBUTION VAULT, FOR TYPE/SIZE SEE STRUCTURE LOCATION TABLE ON DWG UTD-3 O TELECOMMUNICATIONS VAULT, FOR TYPE/SIZE SEE STRUCTURE LOCATION TABLE ON DWG UTD-4 OTERMINAL POLE, INSTALLED BY SCL, SEE STRUCTURE LOCATION TABLE ON UTD-3 OSCL DISTRIBUTION DUCTBANK, SEE DETAIL 1 ON DWG UTD-1 5 • TELECOMMUNICATIONS DUCTBANK, SEE DETAIL 14 ON DWG UTD-2 6 UTILITY POLE (INCLUDING GUY ANCHORS) TO 6 • BE REMOVED BY OTHERS (SCL) UTILITY POLE TO REMAIN IN PLACE Og PROTECT UTILITY IN PLACE OPRIVATE SERVICE TRENCH 10 EXISTING ELECTRIC METER (LOCATION APPROXIMATE) 11 ADJUST VAULT/CASTING TO MATCH FINISHED GRADE LEGEND - BP — BURIED POWER BT BURIED TELEPHONE/COMM ST SCL CC CL ZY 4-4"C STORM DRAIN SEATTLE CITY LIGHT COMCAST CENTURY LINK ZAYO FOUR 4" CONDUIT (TYP) NOTES: 1. REFER TO DRAINAGE AND UTILITY PLANS (DR SHEETS) FOR WORK RELATED TO THE RECONSTRUCTION OF THE STORM DRAIN AND FIRE HYDRANTS. 2. REFER TO CHANNELIZATION, ILLUMINATION, AND SIGNING PLANS FOR WORK RELATED TO THE INSTALLATION OF A NEW STREET LIGHTING SYSTEM. 3_ THE MINIMUM RADIUS FOR DISTRIBUTION POWER CONDUIT IS 12.5' EXCEPT AS NOTED OTHERWISE. THE MINIMUM RADIUS FOR COMMUNICATIONS CONDUIT IS 5' EXCEPT AS NOTED OTHERWISE. Q' L 4. DUCTBANK CALLOUTS ON THE UTILITY UNDERGROUN;II; - DING PLANS DO NOT INCLUDE THE CONDUITS FEEDING PRIVATE SERVICES. REFER TO SHEET UTD-5 FOR THE NUMBER OF CONDUITS TO EACH PROPERTY AND FOR THE VAULT NUMBER THAT FEEDS EACH SERVICE. 5. REFER TO TABLES ON DRAWINGS UTD-3, UTD-4 AND UTD-05 FOR TYPE AND LOCATION OF NEW VAULTS, THE NUMBER AND SIZE OF CONDUIT BETWEEN EACH VAULT, AND THE NUMBER OF CONDUIT TO EACH PRIVATE SERVICE. CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III UTILITY UNDERGROUNDING PLAN Oda revisions 45 89 file no UT-2 Scale 1'=20' dale. 2010017 r ®® SCL 3-7 to SCL 2-3 COMM 00 SCL 3-2 to SCL 2-5 ®® SCL 3-2 to SCL 2-4 ®® SCL 3-4 to SCL 6-2 ®® SCL 3-4 to SCL 2-4 0 -scL 3-6 to SCL 2-2 SCL 3-6 to SCL 2-2 10-4"C 4-5"C m 1 0 z N 7 w z x ®® ®® ®® 1-3"C SCL SCL 3-7 to SCL 3-2 to SCL 3-2 to SCL 3-2 to SCL 3-4 to SCL 3-4 to �O SCL 3-6 to SCL 3-6 to 1-3"C 12-4"C 4-5"C #15645 O ZY 3-1 3-1 to #1 SCL 2-3 SCL 3-1 SCL 2-5 SCL 2-4 SCL 6-2 SCL 2-4 SCL 2-2 SCL 2-2 UG CC 3-4"C CL1-4"C— t s! _ ��,� SCL 3_1 ,to 415 5 _ GCd.34 C_ T �d SCL 3-2 lo SCL 3-1 CL 1-4"C — 58+00 ., ,1.3"C & 2-4_C— zy 1-4"C vilt:{} 4r #15654 SCL UG SERVICE TO 15654 42ND AVE ST ST ST < CC 3-2 CL 3-3 3-101 S.O #15650 5645 COM G SERVICE TO 5645 42ND AVE S C CC 3-4 — --- 59+00 ST G — — G .CC 1-4" C :CL 1-4"C l 1 1 CL 3-4 OCC 3-3 #15646 uGi 0 UG SERVICE TO 15650 42ND AVE SCL 3-2 to SCL 3-1 SCL 3-2 to SCL 2-5 SCL 3-2 to SCL 2-4 6-4"C SCL 3-20 (V10) SCL 3-4 to SCL 3-2 CL 3-1 ® a' SCL 3-7 to 1CL 2-3 C) Q G SCL 3-4 to $CL 3-2 00, SCL 3-4 to SCL 6-2 ®® SCL 3-4 to SCL 2-4 (j® SCL 3-6 to SCL 2-2 (') SCL 3-6 to CL 2-2 8-4"C 4-5"C 1 4 ® 0® 0® SCL 6-4"C COMM SCL 3-4 to CL 3-2 SCL 3-4 to pCL 6-2 #15625 SCL 3-4 to SCL 2-4 EWIS & CLAR APARTMENTS UG SCL 3-6 SCL 3-7 SCL 3-4 (V7) 0 ST 42AETADE S z ST ST ST ST ST G— — G — .— _ — — G — INTERCEPT UG SERVIC VVITH CC 1 EX SCL 3-3 `UG SERVICE TO 15646 42ND AVE S #15642 UG XST TO 15642 '0 AND CL #15638 .l-.rd. T_!.T-ll11111T ND "15638 1-2"C a" ® 2-4"C TO EXST SCL 3-5 (VAULT--V615-F4) 0 2-4"C 4-5"C ® 00 ® ®® CL 3-4 1 SCL 4-6 to SCL 3-4 SCL 4-1 to SCL 3-4 4-4"C EX CL 3-2 UTILITY UNDERGROUNDING NOTES: OSCL DISTRIBUTION VAULT, FOR TYPE/SIZE SEE STRUCTURE LOCATION TABLE ON DWG UTD-3 O TELECOMMUNICATIONS VAULT, FOR TYPE/SIZE SEE STRUCTURE LOCATION TABLE ON DWG UTD-4 OTERMINAL POLE, INSTALLED BY SCL, SEE STRUCTURE LOCATION TABLE ON UTD-3 o EX SCL 3-5 ®® SCL 4-4 to SOL 3-7 COMMO �® SCL 4-6 to SOL 3-4 ®® SCL 4-1 to SCL 3-4 50' ®SCL 4-5 to SGL 3-6 SO' Q SCL 4-j to S L 3-6 6-4"Ct 4 4-5"C EX SCL 4-4 to SCL 3-7 COMM SCL 4-5 to SCL 3-6 SCL 4-5 to SCL 3-6 71111 OCC 2-4 C CL 2-4"C ZY 1-4"C 5i I BT =T BT 62+00 — 7- WALL RW-3R '0—_ 0 20 40 SCALE IN FEET SCL DISTRIBUTION DUCTBANK, SEE DETAIL 1 ON DWG UTD-1 O5 TELECOMMUNICATIONS DUCTBANK, SEE DETAIL 4 ON DWG UTD-2 O6 UTILITY POLE (INCLUDING GUY ANCHORS) TO BE REMOVED BY OTHERS (SCL) OUTILITY POLE TO REMAIN IN PLACE OPROTECT UTILITY IN PLACE OPRIVATE SERVICE TRENCH 10 EXISTING ELECTRIC METER (LOCATION APPROXIMATE) M N 11 a • LEGEND F - BP — BURIED w z ADJUST VAULT/CASTING TO MATCH FINISHED GRADE BT BURIED -ST STORM ✓ SCL SEATTLE CITY LIGHT CC COMCAST CL CENTURY LINK POWER TELEPHONE/COMM DRAIN ZY ZAYO 4-4"C FOUR 4" CONDUIT (TYP) NOTES: 1. REFER TO DRAINAGE AND UTILITY PLANS (DR SHEETS) FOR WORK RELATED TO THE RECONSTRUCTION OF THE STORM DRAIN AND FIRE HYDRANTS. 2. REFER TO CHANNELIZATION, ILLUMINATION, AND SIGNING PLANS FOR WORK RELATED TO THE INSTALLATION OF A NEW STREET LIGHTING SYSTEM. 3. THE MINIMUM RADIUS FOR DISTRIBUTION POWER CONDUIT IS 12.5' EXCEPT AS NOTED OTHERWISE. THE MINIMUM RADIUS FOR COMMUNICATIONS CONDUIT IS 5'EXCEPT AS NOTED OTHERWISE. 40 (::: '011 4. DUCTBANK CALLOUTS ON THE UTILITY UNDERGROUNcil - DING PLANS DO NOT INCLUDE THE CONDUITS FEEDING PRIVATE SERVICES. REFER TO SHEET UTD-5 FOR THE NUMBER OF CONDUITS TO EACH PROPERTY AND FOR THE VAULT NUMBER THAT FEEDS EACH SERVICE. 5. REFER TO TABLES ON DRAWINGS UTD-3, UTD-4 AND UTD-05 FOR TYPE AND LOCATION OF NEW VAULTS, THE NUMBER AND SIZE OF CONDUIT BETWEEN EACH VAULT, AND THE NUMBER OF CONDUIT TO EACH PRIVATE SERVICE. PUBLIC WORKS DEPT. -ENGI N EERI NG-STREETS-WATER-SEWER-PARKS-BUI LDI NG- M deb E drawn EWH ducted BPS BPS & nn CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III UTILITY UNDERGROUNDING PLAN 46 89 mew UT-3 f scale r=20' ®® ®® 00 00 00 6-4"C SCL SCL SCL SCL SCL 4-5"C - JG M N z a' w z J x F 2 4-4 to SCL 3-7 COMM 4-6 to SCL 3-4 4-1 to SCL 3-4 4-5 to SCL 3-6 4-5 to SCL 3-6 0 0 SCL U SERVICE TC\♦ 15 03 42ND AVE S�♦ ♦ • SCL 4-1 to SCL 4-1 to SCL 4-1 to 1-3'C 4-4'C # 5603 SCL 4-3 SCL 3-4 SCL 4-1 (V11) GUY POLE INTERCEPT EXISTING UG SERVICE TO 15460 42ND AVE S. SCL 4-4 to SCL 3-7 COMM SCL 4-6 to SCL 4-1 SCL 4-6 to SCL 3-4 SCL 4-5 to SCL 3-6 SCL 4-5 to SCL 3-6 6-4"C ♦♦ 4-5"C — ♦ CC -4 CL 2-4 ZY-4" # 154!^3 f%1 ( u, L C SCL 4-6 to SCL 4-1 ♦ SCL 4-6 to SCL 3-4 ♦♦ 4-4"C K 2-4"C 4-5"C ®® ®0 ♦ ♦ ® 00 00 EX4 ZY 4-1 64+ SCL 4-4 to SCL SCL 4-5 to SCL SCL 4-5 to SCL SCL 4-6 0 SCL 4-2 to SCL 4-6 BTx —x BT y STA 64+10.50, 30' LT AND 35' L INSTALL TWO GUARD POSTS PROTECT PMD-9 PER SCL CONSTRUCTION STANDARD U10-7 SCL 4-2 (PMD-9) 00 2-5"C 1-5"C SCL 4-2B to EX SCL 4-5 1-5"C SCL 4-2A to EX SCL 4-5 EX SCL 4-4 (SCL COMM) ®SCL 4-4 to 'SCL 3-7 COMM ,p -4"C EX SCL4-5 (VAULT V7311 Uffl 8 CC 4-3 CC 2-4"C LE — —. x— —x— —x— —x— —x— —x— —x—x- \�OxANDX •, GUY ANCHORS., BT a- a'77r VT 1- a§F3== LBy'—` 'L,3p— —" P: PUBLIC WORKS DEPT. -ENG I N EERI NG-STREETS-WATER-SEWER-PARKS-BU 1 LDI NG- 65+00 ST T-- ST ST CC 1-4"C _ CL 1-4'C CC 4-2 CL 4-2 UG SERVICF T( 15458 42ND AVE By er. S.O9 designed EWH dravel EWH chocked BPS atieee BPS Pea ee field w no 00 2-4"C 6-5"C SCL 4-5 to SCL 4-6 SCL 4-5 to SCL 3-6 SCL 4-5 to SCL 3-6 1-5"C SCL 4-2B to 1 5"C SCL 4-2A to 00 00 00 cH2tiw B ._.,..— BT —. — BT,.-. — BT r9a_ ST ST uST ST lir 0 STUB FOR FUTURE ♦ UG SERVICE TO 9• 15436 42ND AVE S. •♦ ♦ ♦ • ♦ ♦ ♦ • ♦ • ♦ :^1 BT — i-; Lo —ca uD — — .saBL—BFr—�L UTILITY UNDERGROUNDING NOTES: SCL DISTRIBUTION VAULT, FOR TYPE/SIZE SEE STRUCTURE LOCATION TABLE ON DWG UTD-3 OTELECOMMUNICATIONS VAULT, FOR TYPE/SIZE SEE STRUCTURE LOCATION TABLE ON DWG UTD-4 OTERMINAL POLE, INSTALLED BY SCL, SEE STRUCTURE LOCATION TABLE ON UTD-3 OSCL DISTRIBUTION DUCTBANK, SEE DETAIL 1 ON DWG UTD-1 O5 TELECOMMUNICATIONS DUCTBANK, SEE DETAIL 4 ON DWG UTD-2 6 UTILITY POLE (INCLUDING GUY ANCHORS) TO 6lf.)BE REMOVED BY OTHERS (SCL) 7O UTILITY POLE TO REMAIN IN PLACE gO PROTECT UTILITY IN PLACE 0 PRIVATE SERVICE TRENCH 10 10 EXISTING ELECTRIC METER (LOCATION APPROXIMATE) 11 ADJUST VAULT/CASTING TO MATCH FINISHED GRADE LEGEND - BP — BURIED POWER - BT BURIED TELEPHONE/COMM - ST STORM DRAIN SCL SEATTLE CITY LIGHT CC COMCAST CL CENTURY LINK ZY ZAYO 4-4"C FOUR 4" CONDUIT (TYP) NOTES: 1. REFER TO DRAINAGE AND UTILITY PLANS (DR SHEETS) FOR WORK RELATED TO THE RECONSTRUCTION OF THE STORM DRAIN AND FIRE HYDRANTS. 2. REFER TO CHANNELIZATION, ILLUMINATION, AND SIGNING PLANS FOR WORK RELATED TO THE ♦ INSTALLATION OF A NEW STREET LIGHTING SYSTEM. ♦ 0 20 40 SCALE IN FEET 3. THE MINIMUM RADIUS FOR DISTRIBUTION POWER CONDUIT IS 12.5' EXCEPT AS NOTED OTHERWISE. THE MINIMUM RADIUS FOR COMMUNICATIONS CONDUIT IS 5' EXCEPT AS NOTED OTHERWISE. 4. DUCTBANK CALLOUTS ON THE UTILITY UNDERGROUN- DING PLANS DO NOT INCLUDE THE CONDUITS FEEDING PRIVATE SERVICES. REFER TO SHEET UTD-5 FOR THE NUMBER OF CONDUITS TO EACH PROPERTY AND FOR THE VAULT NUMBER THAT FEEDS EACH SERVICE. 5. REFER TO TABLES ON DRAWINGS UTD-3, UTD-4 AND UTD-05 FOR TYPE AND LOCATION OF NEW VAULTS, THE NUMBER AND SIZE OF CONDUIT BETWEEN EACH VAULT, AND THE NUMBER OF CONDUIT TO EACH PRIVATE SERVICE. CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III UTILITY UNDERGROUNDING PLAN data reitiSiOnti 47 89 Bo UT-4 scale 1°=20' rT L Lr data ,n,nfl„ OTP 5-2 (SCL TERMINAL POLE TP50) INSTALL RISER FOR 4-5" & 2-4" CONDUIT PER SCL CONSTRUCTION GUIDELINES U7-10 AND CAP SPARE CO DUITS SCL 1-1 to TP 5-1 SCL 5-1 to TP 5-2 SCL 5-1 to TP 5-2 OTP 5-1 (SCL TERMINAL POLE TP51) INSTALL RISERS FOR 2-4" CONDUIT PER SCL CONSTRUCTION GUIDELINES U7-10 AND CAP CONDUITS CL 3-4"C CL 5-1 a-2 SCL 5-1 to TP 5-2 SCL 5-1 to TP 5-2 00 / BT - BT 43 O 2-4 C 4-5"C PRIVATE OVERHEAD SERVICE O ®® 0® 4-4"C SCL SCL co 1-1 to 1-4 to O —X—• 4 II- O. '- m m W 1 > a < TP 5-1 TP 5-2 COMM I� m N oP- coca CTIs m UG SERVICE m TO 15857 ib 42ND AVE S t m O � � SCL 5-2 Itria co l�gp , -P — :P— BP —�p- •--.'r$-_Bp__( ,- co BT —� BT .( t BT W— 4 m BT BT BT BOQT� -Z BT—BT—B T--BT—BT—BT—BT--BT— • BP —as 3 fm S.160TH ST OCC 2-4"C -- CC 5-10 Oa 0 1711. BP - oP — — —OP— EX TP5-3 LOCATION SHOWN IS APPROX. SCL 5-1 O OP �— OP —� — 4-5"C SCL 2-2 to SCL 5-1 SCL 2-2 to SCL 5-1 00 F dB -BP— --BP-- BP——BP---BP— m = CC 2-4"C CL 3-4"C J 18 -1B ZY 5-1 �2 CC 5-20 '40` 0 20 40 SCALE IN FEET UTILITY UNDERGROUNDING NOTES: OSCL DISTRIBUTION VAULT, FOR TYPE/SIZE SEE STRUCTURE LOCATION TABLE ON DWG UTD-3 UI CLCL.UMMUNIL,/ IIUIVJ V/%ULT, rum 1 TPE/SIGC SEE STRUCTURE LOCATION TABLE ON DWG UTD-4 0 O 0 0 0 0 0 70 11 TERMINAL POLE, INSTALLED BY SCL, SEE STRUCTURE LOCATION TABLE ON UTD-3 SCL DISTRIBUTION DUCTBANK, SEE DETAIL 1 ON DWG UTD-1 TELECOMMUNICATIONS DUCTBANK, SEE DETAIL 4 ON DWG UTD-2 UTILITY POLE (INCLUDING GUY ANCHORS) TO BE REMOVED BY OTHERS (SCL) UTILITY POLE TO REMAIN IN PLACE PROTECT UTILITY IN PLACE PRIVATE SERVICE TRENCH EXISTING ELECTRIC METER (LOCATION APPROXIMATE) ADJUST VAULT/CASTING TO MATCH FINISHED GRADE LEGEND - BP — BURIED POWER BT BURIED TELEPHONE/COMM ST — STORM DRAIN SCL SEATTLE CITY LIGHT CC COMCAST CL CENTURY LINK ZY ZAYO 4-4"C FOUR 4" CONDUIT (TYP) NOTES: 1. REFER TO DRAINAGE AND UTILITY PLANS (DR SHEETS) FOR WORK RELATED TO THE RECONSTRUCTION OF THE STORM DRAIN AND FIRE HYDRANTS. 2. REFER TO CHANNELIZATION, ILLUMINATION, AND SIGNING PLANS FOR WORK RELATED TO THE INSTALLATION OF A NEW STREET LIGHTING SYSTEM. 3. THE MINIMUM RADIUS FOR DISTRIBUTION POWER CONDUIT IS 12.5' EXCEPT AS NOTED OTHERWISE. THE MINIMUM RADIUS FOR COMMUNICATIONS CONDUIT IS 5' EXCEPT AS NOTED OTHERWISE. 4, DUCTBANK CALLOUTS ON THE UTILITY UNDERGROUN- DING PLANS DO NOT INCLUDE THE CONDUITS FEEDING PRIVATE SERVICES. REFER TO SHEET UTD-5 FOR THE NUMBER OF CONDUITS TO EACH PROPERTY AND FOR THE VAULT NUMBER THAT FEEDS EACH SERVICE. 5. REFER TO TABLES ON DRAWINGS UTD-3, UTD-4 AND UTD-05 FOR TYPE AND LOCATION OF NEW VAULTS, THE NUMBER AND SIZE OF CONDUIT BETWEEN EACH VAULT, AND THE NUMBER OF CONDUIT TO EACH PRIVATE SERVICE. I~ r L rir L PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- dale dwerwl EWH EWH ducked BPS BPS cH214t. CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III UTILITY UNDERGROUNDING PLAN 48 89 t scale t O®® 2-4"C SCL 6-1 to TP 6-1 3OTP 6-1 (SCL TERMINAL POLE TP,1)_________ __ INSTALL RISERS FOR 2-4" CONDUITSU7-10 AND CAP SPARE CONDUITS PER SCL CONSTRUCTION GUIDELINES S.158TH ST ^BT — —BT—— OCL 2-4"C �a r oa—— *op —"-op --pp— BT — BT OCL 6-1 OCC 6-1 OCC 2-4"C CL 2-4"C • BP —CBT SCL 6-1 (V5) O N -*---W--.. a— -Ai ... ;Py — — Yy vim- a. 14° —_— m - Er CC 2-4" C is a zy S S —_ 5%— S -- WO r r8 Jx zF xr— n _ _ 8— d8-CAk. 4-BT—BT—BT—.§B;M1� _ BTw �°D °'8—d8----dB--dB--dB d8•�0. i 112* BT —1 ( PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDI NG- 42ND AVE S. O4-4"C SCL 3-4 to SCL 6-2 �® SCL 6-1 to SCL 6-2 M date SCL 6-2 (V6) O 02-4 C SCL 6-2 to TP 6-2 designed EWH *awn EWH decked BPS —9 BPS Pnd fiddbk no 1®®1 OCC 6-2 A S — — S.158TH ST rz TP 6-2 (SCL TERMINAL POLE TP2) INSTALL RISERS FOR 2-4" CONDUITS PER SCL CONSTRUCTION GUIDELINES U7-10 AND CAP SPARE CONDUITS 0 20 40 SCALE IN FEET UTILITY UNDERGROUNDING NOTES: OSCL DISTRIBUTION VAULT, FOR TYPE/SIZE SEE STRUCTURE LOCATION TABLE ON DWG UTD-3 OTELECOMMUNICATIONS VAULT, FOR TYPE/SIZE SEE STRUCTURE LOCATION TABLE ON DWG UTD-4 OTERMINAL POLE, INSTALLED BY SCL, SEE STRUCTURE LOCATION TABLE ON UTD-3 O4 SCL DISTRIBUTION DUCTBANK, SEE DETAIL 1 ON DWG UTD-1 O5 TELECOMMUNICATIONS DUCTBANK, SEE DETAIL 4 ON DWG UTD-2 OUTILITY POLE (INCLUDING GUY ANCHORS) TO 6 BE REMOVED BY OTHERS (SCL) OUTILITY POLE TO REMAIN IN PLACE OPROTECT UTILITY IN PLACE OPRIVATE SERVICE TRENCH OEXISTING ELECTRIC METER (LOCATION 10 APPROXIMATE) 11 ADJUST VAULT/CASTING TO MATCH FINISHED GRADE LEGEND BP — BURIED POWER BT BURIED TELEPHONE/COMM ST STORM DRAIN SCL SEATTLE CITY LIGHT CC COMCAST CL CENTURY LINK ZY ZAYO 4-4"C FOUR 4" CONDUIT (TYP) NOTES: 1. REFER TO DRAINAGE AND UTILITY PLANS (DR SHEETS) FOR WORK RELATED TO THE RECONSTRUCTION OF THE STORM DRAIN AND FIRE HYDRANTS. 2. REFER TO CHANNELIZATION, ILLUMINATION, AND SIGNING PLANS FOR WORK RELATED TO THE INSTALLATION OF A NEW STREET LIGHTING SYSTEM. 3. THE MINIMUM RADIUS FOR DISTRIBUTION POWER CONDUIT IS 12.5' EXCEPT AS NOTED OTHERWISE. THE MINIMUM RADIUS FOR COMMUNICATIONS CONDUIT IS 5' EXCEPT AS NOTED OTHERWISE. 4. DUCTBANK CALLOUTS ON THE UTILITY UNDERGROUN- DING PLANS DO NOT INCLUDE THE CONDUITS FEEDING PRIVATE SERVICES. REFER TO SHEET UTD-5 FOR THE NUMBER OF CONDUITS TO EACH PROPERTY AND FOR THE VAULT NUMBER THAT FEEDS EACH SERVICE. 5. REFER TO TABLES ON DRAWINGS UTD-3, UTD-4 AND UTD-05 FOR TYPE AND LOCATION OF NEW VAULTS, THE NUMBER AND SIZE OF CONDUIT BETWEEN EACH VAULT, AND THE NUMBER OF CONDUIT TO EACH PRIVATE SERVICE. CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III UTILITY UNDERGROUNDING PLAN no date revialells r 49, 89 rde no UT-6 sale 1.1 date 2/21/2017 r 2 IL .450 '440 430 420 410 400 • 390 380 360 SCL• TRUNK' LI E 'DUCT 2 re O •z a .w z BANK• REFER TO SHEETS UT-5 AND a • • NF— J H � 0 • • . O FQR. CONDUIT. . . . . RISERS REFER . TO SCL.CONSTRUCTION. • • STANDARD. U7-102JNDK-90 UT.1• FO R PLAN N 0 W O • • .co . SEE . PROFILE BELOW . FOR . . CROSSING. EAST TO. EX SCL .1-5 . .... • • • • • • . • . • • • ... $E,E PF20FILF 'BELOW ' ' ' • x x FOR CROSS NG .TO . . MINIMUM . 1:-0" VERTICAL o VAULT S.C1, 5-1 6 . . CLEARANCE REQUIRED. . . . . FROM SPU• 60" WATER. • •0+00 •�S CROSS NG FROM TRUNK ATg z • ' • S. 16DTH ST. TO SCL 5-1 a a •��„N ' ' (WEST 'LEG OF 160TH)' " •V N w VA 0 U U nN 440 440 re w w Er w •z ' MINIMUM' 1'-0" VERTICAL• CLEARANCE REQUIRED FROM SPU. fj0° V✓ATER, U FINISHED ; GRADE ' o EX STING. . . GROUND. . • CROSSING FROM •TRUNK •AT• S.'160T'1 ST. TO ' EXSCL 1-5 • (EAST LEG OF 160—H) • ' MINIMUM- 1'-0" VERTICAL CLEARANCE -REQU RED • • FROM -SPU 60' WATER PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- tram chected pool an bY m EXISTING GROUND cH2tiw •w• U • Q. • SEE PROFILE BELOW. • • FOR CROSSING. TO. , . .VAULT SCL .1-2 . . . . . H RIZONTAL . . . SCALE IN FEET ERTICAL, • SCALE IN FEET o• �• •450 440 430 420 + 410 . 400 z• 390 x • . 4 380 370 380 • • CROSSING FROM VAULT SCL 1-1 TO VAULT SCL• 1-2 440 420 • 10 • z 17.5'-' g 20'R CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III UTILITY UNDERGROUNDING PROFILES SCL DUCTBANK 420 .gig .. . Jv . . •cp• . 50 , 89 0e no UTP-1 scale 1•=20' 3Y0 x V 340 CI; TR NK LIN . w . . . . . . . 0 Iflja�l� ` W rn a � I 1111"Anit ir.-11 IN I nit'arLiggi....remiI NI IM 1®® • SEE FOR . . VALI PROFILE CROSSIN T,SCL 2- 340 . RISERS REFER. . TO . SC CONST.R . STAND RD . U7-10 FINISHED GRADE EXISTIN GROUND CTION . 2/NDK.90 PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- drawn FON plea field a no r� Qa llni SEE' PRO' ILE • 1111 BELLOW.IM• ERMINAL POLE 6-1 1�® SEE' PRO' ILE . . BELOW ' • ERMINAL POLE' 6-2 . data UCTBAN CL'6=1 'T TO .CL CONS RUCTION . STA DARD, VJ7 10.2/NDK- 0 CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III UTILITY UNDERGROUNDING PROFILES SCL DUCTBANK • .20 . ORIZONTA ALE IN FE -10 . VERTICAL ALE IN FE no date revisions 51 89 file no UTP-2 sale V.20' data 221/2017 L rT L SCL' TRUNK' LINE DUCTBANK' - . . . . . REFER TO' SHEET' UT-3 FOR 'PLAN •-- t • SEE-PRQF1LE BELOW . . . . VAULT .SCL 3- cc cc w w U w w 0 O U 0 2. K. 0 0) N SEE PROFILE BELOW • • • FOR CROSSING ' TO ' • VAU T' SCL 3-2. ' ' ' . Mg U . U FI !SHED w G E . ' Irii . EXJSTING . . . GROUND . . . . . P w Z w .Z . . •o w . O >-v I o •a. . . .W. • w 2. . . .co. w . —I0) M . �CC .U. • w. • N. 6 . Q _a. N . Z . w- • • 1.0, . .• 350 • 0 • •340 •= 330 • • - 320 • .... .. OM .... .... �'.Rf1SS1NG FRTRUNK LINE TO • VAULT •SCL • 3-1 .... .... .... .... w 1- 0 A w Z O a J 4> H.. w'w w .0. '2. .Q . .1-. w Y ]. . •U 10-00 . ' 350 340 330 330 • 320 • • 11-00 ' ' .... .... .... ... CROSSING FROM VAII, T SCL• 3-2 TO • VAULT •SCL • 3-3 O Z � 0 • m w ' isl w¢ LD iv cc -w .3 w 12.5'R • .310• 310 • -• 12.5' R 00 12.5' R 12.5'R: • •300• 12.5'R ' ' ' ' 300 230 PUBLIC WORKS DEPT. -ENGIN EERING-STREETS-WATER-SEWER-PARKS-BU ILDING- 340 330 300 290 • • • • HORIZONTAL • • • • SCALE IN FEET. . . • • 1 1 I• • VERTICAL . . . S ALE IN FEET by draw chalud c6,2nu CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III UTILITY UNDERGROUNDING PROFILES SCL DUCTBANK 52 89 0e n0 UTP-3 • r L L r=20' .... .. ... .... SCL TRUNK. LINE . DLCTBANK REFE HEFT U T-4 .FOR PLAN. Set N J U" a FINI' GIRA w w • J 0 c 0 ' SEEP • FOR • • VAULT cc OFILE BE ROSSING SCL 4-3 LOW • • TO• • 0 M • J > • • 230 280 270 2G0 250 2 • . 1400 ' • ROSSING• FROM ' AULT SUL 4-1 O VAU r SCL .... .... .... .... 7 . .0 0) w. . U. • . . w CO O —30' R 2 CC 0 N N U —J • 12.5' 4-3 230 280 270 2G0 2-0 210 . 15- 00 . . PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- 16- 00 designed drawn checked Prq eel EWH EWH BPS BPS dale CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III UTILITY UNDERGROUNDING PROFILES SCL DUCTBANK • • 1 1. • •20 • • •40 • 10RIZONTAL • • .SCALE IN FEET. 1 SC • •10 • VERTICAL ALE IN FE ET 53 89 file no UTP-4 L scale 1'=20' SURFACE RESTORATION - FOR BACKFILL AND SURFACE RESTORATION SEE DETAILS 2 AND 3 ON DRAWING UGD01 DETECTABLE MARKING TAPE 18"DEEP OVER CORNERS OF DUCTBANK PER SEATTLE CITY LIGHT CONSTRUCTION STANDARD 0222.02 LOW STRENGTH-FTB (UNDYED/GRAY) PER SCL MATERIAL STANDARD 7150.00 SCL UTILITY CIRCUITS; PLANS FOR QUANTITIES REQUIRED IN EACH DUCT CONDUIT SPACERS AND SUPPORTS NOT SHOWN FOR CLARITY HIGH STRENGTH-FTB (RED DYED) PER SCL MATERIAL STANDARD 7150.00 NEAT LINE OF DUCT BANK EXCAVATION 3"TYP 7.9 TYP III-III� 6" 3' TYP V) w W w > Z O o U� WI- 2>5 MO 2 Z 2 O Wx LL x O�� ww zoo oz ow= x 250 KCML COPPER GROUND ELECTRODE CABLE. SEE SPECIAL PROVISION 8-33.3(4) MAX LIMIT OF HS-FTB; USE FORMWORK OR TEMPORARY SHORING SCL DISTRIBUTION DUCT BANK DETAIL SCALE: 1"= 1'-0" PUBLIC WORDS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- dPOPPW drawl checked Wal ag SIDEWALK AND/OR PLANTER CURB LOW STRENGTH-FTB TO BOTTOM OF PLANTING ZONE OR SIDEWALK CONDUIT ENCASED IN HIGH STRENGTH-FTB SIDEWALKS AND O UNPAVED AREAS NTS br EWH EWH BPS BPS dab PROPOSED ROADWAY SURFACE lull ,1%/llll%%llNNNNNNNNNN ���`/�`� \�SEE TYPICAL ROADWAY SECTIONS 1711 I1III11� III1III1III, II - BOTTOM OF ROADWAY SUBGRADE IS BOTTOM OF CRUSHED SURFACING BASE COARSE. REFER TO TYPICAL ROADWAY SECTIONS. LOW STRENGTH-FTB TO BOTTOM OF ROADWAY SUBGRADE PAVEMENT AREAS NTS NOT- ES: 1. WHERE UTILITIES TRENCH EXTENDS BEYOND FULL DEPTH PAVING LIMITS, PAVEMENT RESTORATION SHALL BE DONE IN ACCORDANCE WITH THE CITY OF TUKWILA STANDARD DETAIL DS-146" CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III UTILITY UNDERGROUNDING DETAILS SCL DUCTBANK DETAILS • r J 54 89 AB Bo UTD-1 scale SURFACE RESTORATION — FOR BACKFILL AND SURFACE RESTORATION SEE DETAILS 5 AND 6 -III III'' SIDEWALK AND/OR PLANTER w > 3' TYP r 1- co 6.6 DETECTABLE MARKING TAPE NEAT LINE OF DUCT BANK a } CONDUIT SPACERS AND SUPPORT NOT SHOWN FOR CLARITY SEE PLANS FOR QUANTITIES OF CONDUITS COMMUNICATIONS DUCT BANK DETAIL SCALE: 1" = 1'-0" PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- CURB JOINT TRENCH BACKFILL COMPACTED TO 95% MAX DENSITY AS APPROVED BY THE ENGINEER. TO UNDERSIDE OF PLANTING ZONE OR SIDEWALK CONDUIT ZONE ENCASED IN JOINT TRENCH PIPE ZONE BEDDING SIDEWALKS AND O UNPAVED AREAS NTS bY deelyn1 EWH checked BPS BPS woi Seld ns no PROPOSED ROADWAY SURFACE 011.,l�l„ll,lll \ �\ SEE TYPICAL ROADWAY SECTIONS k <' /! 19 1111I IIIIIIII i N BOTTOM OF ROADWAY SUBGRADE IS BOTTOM OF CRUSHED SURFACING BASE COARSE. REFER TO TYPICAL ROADWAY SECTIONS. JOINT TRENCH BACFILL COMPACTED TO 95% MAX DENSITY AS APPROVED BY THE ENGINEER. TO BOTTOM OF ROADWAYSUBGRADE CONDUIT ZONE ENCASED IN JOINT TRENCH PIPE ZONE BEDDING O PAVEMENT AREAS NTS NOTES: 1. WHERE UTILITIES TRENCH EXTENDS BEYOND FULL DEPTH PAVING LIMITS, PAVEMENT RESTORATION SHALL BE DONE IN ACCORDANCE WITH THE CITY OF TUKWILA STANDARD DETAIL DS-14B" CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III UTILITY UNDERGROUNDING DETAILS COMMUNICATIONS DUCTBANK DETAILS no data revisions e 01; 61i 55 89 De no UTD-2 sae data 7/71D017 r SCL STRUCTURE LOCATION TABLE VAULT/HH SCL t, „„„, OWNER VAULT/HH o DETAIL & SHEET NO. PLAN DWG ALIGNMENT STATION OFFSET NOTES SCL 1-1 SCL 577-LA 7/UTD-7 UT-1 42ND 52+16.00 26.00' LT SCL 1-2 SCL 444-LA 17/UTD-10 UT-1 42ND 51+95.78 27.19' RT SERVICE TO 15854, 15838 SCL 1-4 SCL 444-LA 18/UTD-11 UT-1 42ND 50+75.62 21.18' LT SCL COMM VAULT EX SCL 1-5 V630 SCL EXISTING UT-1 42ND 50+02.00 201.60' RT SCL 2-1 V12 SCL 507-LA 14/UTD-10 UT-2 42ND 53+42.04 25.32' LT SERVICE TO 15837 SCL 2-2 SCL 712-CLX 6✓UTD-6 UT-2 UT-2 42ND 42ND 54+41.82 24.4T LT FEEDER VAULT SCL 2-3 SCL 444-LA 19/UTD-10 55+40.5 25.60' LT SCL COMM VAULT SCL 2-4 V4 SCL 577-LA 8/UTD-8 UT-2 42ND 55+87.50 23.29' LT SCL 2-5 SCL 444-LA 20/UTD-11 UT-2 42ND 57+34.02 27.51' LT SERVICE TO 4066 SCL 2-6 SCL 233-LA 22/UTD-11 UT-2 42ND 53+81.28 20.48' RT SERVICE TO 15826, 15820 SCL 2-8 SCL 444-LA 21/UTD-11 UT-2 42ND 53+88.22 25.64' LT SERVICE TO 15827, 15819, 4059 SCL 3-1 SCL 233-LA 23/UTD-11 UT-3 42ND 58+10.37 21.67' RT SERVICE TO 15660, 15654 SCL 3-2 V10 SCL 507-LA 15/UTD-10 UT-3 42ND 59+51.78 26.93' LT EX SCL 3-3 SCL EXISTING UT-3 42ND 59+43.45 26.38' RT EXISTING SERVICE TO 15650, 15646, 15642, 15638 SCL 3-4 SCL 577-LA 9/UTD-8 UT-3 42ND 60+99.85 24.64' LT EX SCL 3-5 V613-F4 SCL EXISTING UT-3 42ND 61+13.35 60+33.74 35.49' LT PRIVATE SERVICE VAULT AT 15625 SCL 3-6 SCL 712-CLX 25/UTD-7 UT-3 42ND 24.43' LT FEEDER VAULT SCL 3-7 SCL 444-LA 26/UTD-11 UT-3 42ND 55+40.5 25.60' LT SCL COMM VAULT SCL 4-1 V11 SCL 507-LA 16/UTD-10 UT-4 42ND 63+46.80 23.04' LT SCL 4-2 PMD-9 SCL PAD10 UT-4 42ND 64+18.71 33.21' LT SCL 4-3 SCL 233-LA 24/UTD-11 UT-4 42ND 63+21.30 20.20' RT SERVICE TO 15460,15458, 15436, 15603 EX SCL 4-4 SCL EXISTING UT-4 42ND 64+36.00 31.20' LT SCL COMM VAULT EX SCL 4-5 V731 SCL EXISTING UT-4 42ND 64+52 30.00' LT SCL 4-6 SCL 577-LA 10/UTD-8 UT-4 42ND 64+02.61 25.26' LT SCL 5-1 SCL 712-LA 5/UTD-6 UT-5 42ND 50+23.38 101.27' LT FEEDER VAULT SCL 5-2 SCL 577-LA 11/UTD-9 UT-5 42ND 50+22.17 81.29' LT LOAD BREAK VAULT SCL 6-1 SCL 577-LA 12/UTD-9 UT-6 42ND 56+36.71 63.7g LT LOAD BREAK VAULT SCL 6-2 V6 SCL 577-LA 13/UTD-9 UT-6 42ND 56+33.25 79.10' RT SCL TERMINAL POLES FEATURE SCL NAME OWNER TYPE DWG DETAIL & SHEET NO. ALIGNMENT STATION OFFSET NOTES TP 5-1 TP51 SCL SCL UT-5 1/UTD-3 42ND 50+24.17 154.41' LT SCL 2-4" C TP 5-2 TP50 SCL SCL UT-5 2/UTD-3 42ND 50+24.00 118.69' LT SCL 2-4" C, 4-5"C TP 6-1 TP1 SCL SCL AND COMCAST UT-6 3/UTD-3 42ND 56+34.22 117.66' LT SCL 2-4" C, COMCAST 2-4" C TP 6-2 TP2 SCL SCL AND COMCAST UT-6 4/UTD-3 42ND 56+32.85 109.04' RT SCL 2-4" C, COMCAST 2-4" C SCL VAULT/HANDHOLES BID ITEMS PAYMENT FOR VAULT TYPES LISTED IN THE STRUCTURE LOCATION TABLES ARE AS FOLLOWS: VAULT/HANDHOLE TYPE BID ITEM 233-LA HANDHOLE, PRECAST 233LA - SCL 444-LA VAULT, 444LA - SCL 507-LA VAULT, 507LA - SCL 577-LA VAULT, 577LA - SCL 712-LA VAULT, 712LA - SCL 712-CLX VAULT, 712CLX - SCL PAD10 VAULT, PAD10 - SCL 9 2-4" SCL CONDUIT FROM VAULT SCL 1-1 NEW TERMINAL POLE TP 5-1 INSTALLED BY SCL OTERMINAL POLE TP 5-1 NTS UT-5, UTD-3 NOTES: 1. REFER TO SEATTLE CITY LIGHT CONSTRUCTION GUIDELINES U7-10/NDK-70 AND U7-10.2/NDK-90 FOR REQUIREMENTS FOR CONDUIT RISERS ON POLES. 2-4" SCL CONDUIT FROM VAULT SCL 1-4, 4-5" SCL CONDUIT FROM VAULT SCL 5-1 NEW TERMINAL POLE TP 5-2 INSTALLED BY SCL OTERMINAL POLE TP 5-2 NTS UT-5, UTD-3 NOTES: 1. REFER TO SEATTLE CITY LIGHT CONSTRUCTION GUIDELINES U7-10/NDK-70 AND U7-10.2/NDK-90 FOR REQUIREMENTS FOR CONDUIT RISERS ON POLES. NEW TERMINAL POLE TP 6-1 INSTALLED BY SCL 2-4" SCL CONDUIT FROM VAULT SCL 6-1 2-4" COMCAST CONDUIT FROM VAULT CC 6-1 OTERMINAL POLE TP 6-1 NTS UT-6, UTD-3 NOTES: 1. REFER TO SEATTLE CITY LIGHT CONSTRUCTION GUIDELINES U7-10/NDK-70 AND U7-10.2/NDK-90 FOR REQUIREMENTS FOR CONDUIT RISERS ON POLES. r O UT-6, UTD-3 NOTES: 1. REFER TO SEATTLE CITY LIGHT CONSTRUCTION GUIDELINE U7-10/NDK-70 FOR REQUIREMENTS FOR CONDUIT RISERS ON POLES. NEW TERMINAL POLE TP 6-2 INSTALLED BY SCL 2-4" SCL CONDUIT FROM VAULT SCL 6-2 2-4" COMCAST CONDUIT FROM VAULT CC 6-2 TERMINAL POLE TP 6-2 NTS IL PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- by dale designed drawn EWN chsclud BPS BPS CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III UTILITY UNDERGROUNDING DETAILS SCL STRUCTURE LOCATIONS FINN 56 89 Deno UTD-3 scale COMMUNICATIONS - VAULT LOCATION TABLE VAULT/HH OWNER TYPE LID TYPE DWG ALIGNMENT STATION OFFSET NOTES CC 1-2 COMCAST 444-LA ROUND UT-1 42ND 50+20.31 53.29' LT SERVICE TO 15857 CC 1-3 COMCAST 444-LA ROUND UT-1 42ND 50+24.66 145.4Z RT CC 1-4 COMCAST 444-LA ROUND UT-1 42ND 51+67.26 17.02' LT SERVICE TO 15837 CC 1-5 COMCAST 444-LA ROUND UT-1 42ND 51+90.08 26.01' RT SERVICE TO 15854, 15838 CC 1-6 COMCAST 444-LA ROUND UT-1 42ND 53+18.45 28.00' LT SERVICE TO 15827 CC 2-1 COMCAST 444-LA ROUND UT-2 42ND 54+36.29 27.11' RT SERVICE TO 15826, 15820 CC 2-2 COMCAST 444-LA ROUND UT-2 42ND 54+81.31 27.74' LT SERVICE TO 15819 CC 2-3 COMCAST 444-LA ROUND UT-2 42ND 57+24.76 27.55' LT 27.02' LT SERVICE TO 4066 CC 3-1 COMCAST 444-LA ROUND UT-3 42ND 59+30.23 SERVICE TO 15645, 15625 CC 3-2 COMCAST 444-LA ROUND UT-3 42ND 58+20.94 24.57' RT SERVICE TO 15660, 15654 CC 3-3 COMCAST 444-LA ROUND UT-3 42ND 59+30.56 20.69' RT SERVICE TO 15650, 15646 CC 4-1 COMCAST 444-LA ROUND UT-4 42ND 63+28.11 24,71' LT SERVICE TO 15603 CC 4-2 COMCAST 444-LA ROUND UT-4 42ND 64+38.66 25.13' RT SERVICE TO 15460, 15458, 15436 CC 4-3 COMCAST 444-LA ROUND UT-4 42ND 64+70.05 36.76' LT CC 5-1 COMCAST 444-LA ROUND UT-5 42ND 49+78.34 212.49' LT CC 5-2 COMCAST 444-LA ROUND UT-1 42ND 49+89.87 75.28' LT CC 6-1 COMCAST 444-LA ROUND UT-6 42ND 56+28.41 110.31' LT CC 6-2 COMCAST 444-LA ROUND UT-6 42ND 56+29.74 102.34' RT CL 1-1 CENTURY LINK H1730 STANDARD UT-1 42ND 51+60.81 15.60' LT SERVICE TO 15837 CL 1-2 CENTURY LINK H1730 STANDARD UT-1 42ND 51+85.83 25.47' RT SERVICE TO 15854, 15838 CL 1-3 CENTURY LINK H1730 STANDARD UT-1 42ND 53+22.34 28.07' LT SERVICE TO 15827 EX CL 1-4 CENTURY LINK EXISTING UT-1 42ND 50+20.58 156.1T RT CL 2-1 CENTURY LINK H1730 STANDARD UT-2 42ND 54+31.59 26.49' RT SERVICE TO 15826, 15820 CL 2-2 CENTURY LINK 264-TA STANDARD UT-2 42ND 54+75.41 27.65' LT SERVICE TO 15819 EX CL 2-3 CENTURY LINK EXISTING UT-3 42ND 56+20.20 16.44' LT CL 2-4 CENTURY LINK H1730 STANDARD UT-2 42ND 57+21.05 27.49' LT SERVICE TO 4066 EX CL 3-1 CENTURY LINK EXISTING UT-3 42ND 59+66.11 27.56' LT SERVICE TO 15645, 15625 EX CL 3-2 CENTURY LINK EXISTING UT-3 42ND 61+32.43 19.38' LT CL 3-3 CENTURY LINK H1730 STANDARD UT-3 42ND 58+16.32 24.02' RT SERVICE TO 15660, 15654 CL 3-4 CENTURY LINK H1730 STANDARD UT-3 42ND 59+25.97 20.09' RT SERVICE TO 15650, 15646 CL 4-1 CENTURY LINK 264-TA STANDARD UT-4 42ND 63+89.47 28.86' LT OVERSET EXISTING DUCTBANK CL 4-2 CENTURY LINK H1730 STANDARD UT-4 42ND 64+34.14 25.09' RT SERVICE TO 15460, 15458, 15436 CL 5-1 CENTURY LINK 264-TA STANDARD UT-5 42ND 50+21.49 187.61' LT CL 6-1 CENTURY LINK 264-TA STANDARD UT-6 42ND 56+29.40 146.90' LT ZY 2-1 ZAYO 444-LA ROUND UT-2 42ND 54+86.16 27.56' LT ZY 3-1 ZAYO 444-LA ROUND UT-3 42ND 59+08.70 27.54' LT EX ZY 4-1 ZAYO EXISTING UT-4 42ND 63+69 24.00' LT APPROX. LOCATION OF EXISTING VAULT ZY 5-1 ZAYO 444-LA ROUND UT-5 42ND 49+89.87 69.00' LT COMMUNICATIONS VAULT/HANDHOLE BID ITEMS PAYMENT FOR VAULT TYPES LISTED IN THE STRUCTURE LOCATION TABLES ARE AS FOLLOWS: VAULT/HANDHOLE TYPE BID ITEM H1730 INSTALL H1730 HANDHOLE - CENTURY LINK 264-TA INSTALL 264-TA VAULT - CENTURY LINK 444 INSTALL 444LA VAULT - COMCAST INSTALL 444LA VAULT - ZAYO COMMUNICATIONS CONDUIT ROUTING TABLE COMCAST FROM FEATURE DWG TO FEATURE DWG NUMBER OF CONDUIT CONDUIT SIZE CC 5-1 UT-5 CC 5-2 U1-5 2 4" CC 5-2 UT-5 CC 1-2 UT-1 2 4" CC 1-2 UT-1 CC 1-3 UT-1 2 4" CC 1-3 UT-1 EX TP1-2 UT-1 1 4" CC 1-2 UT-1 CC 1-4 UT-1 2 4" CC 1-4 UT-1 CC 1-5 UT-1 1 4" CC 1-4 UT-1 CC 1-6 UT-1 2 4" CC 1-6 UT-1 CC 2-2 UT-2 2 4" CC 2-2 UT-2 CC 2-1 UT-2 1 4" CC 2-2 UT-2 CC 2-3 UT-2 2 4" CC 2-3 UT-2 CC 6-1 UT-6 2 4" CC 6-1 UT-6 TP 6-1 UT-6 2 4" CC 2-3 UT-2 CC 6-2 UT-6 2 4" CC 6-2 UT-6 TP 6-2 UT-6 2 4" CC 2-3 UT-2 CC 3-1 UT-3 2 4" CC 3-1 UT-3 CC 3-2 UT-3 1 4" CC 3-1 UT-3 CC 3-3 UT-3 1 4" CC 3-1 UT-3 CC 4-1 UT-4 2 4" CC 4-1 UT-4 CC 4-3 UT-4 2 4" CC 4-1 UT-4 CC 4-2 UT-4 1 4" CENTURY LINK FROM FEATURE DWG TO FEATURE DWG NUMBER OF CONDUIT CONDUIT SIZE CL 5-1 UT-5 EX CL 1-4 UT-1 1 4" CL 5-1 UT-5 CL 1-1 UT-1 2 4" CL 1-1 UT-1 CL 1-2 UT-1 1 4" CL 1-1 UT-1 CL 1-3 UT-1 2 4" CL 1-3 UT-1 CL 2-2 UT-2 2 4" CL 2-2 UT-2 CL 2-1 UT-2 1 4" CL 2-2 UT-2 EX CL 2-3 UT-2 2 4" EX CL 2-3 UT-2 CL 6-1 UT-6 2 4" EX CL 2-3 UT-2 CL 2-4 UT-2 1 4" CL 4-1 UT-4 EX CL 3-2 UT-3 2 4" CL 4-1 UT-4 CL 4-2 UT-4 1 4" EX CL 3-2 UT-3 EX CL 3-1 UT-3 2 4" EX CL 3-1 UT-3 CL 3-3 UT-2 1 4" EX CL 3-1 UT-3 CL 3-4 UT-2 1 4" ZAYO FROM FEATURE DWG TO FEATURE DWG NUMBER OF CONDUIT CONDUIT SIZE ZY 5-1 UT-5 ZY 2-1 UT-2 1 4" ZY 2-1 UT-2 ZY 3-1 UT-3 1 4" ZY 3-1 UT-3 EX ZY 4-1 UT-4 1 4" PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- by dots &WPM Th" BPS miens yr a: BPS bold Mac c6,2nn! CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III UTILITY UNDERGROUNDING DETAILS COMMUNICATIONS STRUCTURE LOCATIONS ro as revisions 57 rile nou89/ rile scale dates 9M1P.n17 PRIVATE SERVICES SCHEDULE ADDRESS SCL COMCAST CENTURY LINK NOTES CONniUIT I FROM VAULT CONDUIT I FROM VAULT CONDUIT !FROM VAULT WEST SIDE OF 42ND 15857 42ND AVE S. OVERHEAD 1-2" CC 1-2 OVERHEAD SCL AND CENTURY LINK- OVERHEAD SERVICE FROM 160TH ST. 15837 42ND AVE S. 1-3" SCL 2-1 1-2" CC 1-4 1-2" CL 1-1 NEW UG SERVICE, SEE DETAIL 2 ON SHEET UTD-5 15827 42ND AVE S. 1-3" SCL 2-8 1-2" CC 1-6 1-2" CL 1-3 NEW UG SERVICE, SEE DETAIL 2 ON SHEET UTD-5 15819 42ND AVE S. 1-3" SCL 2-8 1-2" CC 2-2 1-2" CL 2-2 NEW UG SERVICE, SEE DETAIL 2 ON SHEET UTD-5 4059 S. 158TH ST. 1-3" SCL 2-8 NO SERVICE NO SERVICE STUB FOR SCL - FUTURE COMM OVERHEAD FROM 158TH ST. 4066 S. 158TH ST. 1-3" SCL 2-5 1-2" CC 2-3 1-2" CL 2-4 NEW UG SERVICE, SEE DETAIL 2 ON SHEET UTD-3 15645 42ND AVE S. 1-3" SCL 3-1 1-2" CC 3-1 1-2" EX CL 3-1 NEW UG SERVICE, SEE DETAIL 2 ON SHEET UTD-3 15625 42ND AVE S. EX SCL 3-5 1-2" CC 3-1 EX CL 3-1 SCL SERVICE FROM EX SCL 3-5 (VAULT 613-F4) INTERCEPT EXISTING COMCAST VAULT FROM VAULT CC 3-1 CENTURY LINK SERVICE FROM EX CL 3-1 15603 42ND AVE S. 1-3" SCL 4-1 1-2" CC 4-1 1-2" EX CL 3-2 NEW UG SERVICE, SEE DETAIL 2 ON SHEET UTD-3 EAST SIDE OF 42ND 15854 42ND AVE S. 1-3" SCL 1-2 1-2" CC 1-5 1-2" CL 1-2 STUB AT LIMITS OF DRIVEWAY FOR FUTURE SERVICE 15838 42ND AVE S. 1-3" SCL 1-2 1-2" CC 1-5 1-2" CL 1-2 NEW UG SERVICE, SEE DETAIL 2 ON SHEET UTD-3 15826 42ND AVE S. 1-3" SCL 2-6 1-2" CC 2-1 1-2" CL 2-1 NEW UG SERVICE, SEE DETAIL 2 ON SHEET UTD-3 15820 42ND AVE S. 1-3" SCL 2-6 1-2" CC 2-1 1-2" CL 2-1 NEW UG SERVICE, SEE DETAIL 2 ON SHEET UTD-3 15808 42ND AVE S. OVERHEAD OVERHEAD OVERHEAD OVERHEAD SERVICE FROM 158TH ST. 15660 42ND AVE S. 1-3" SCL 3-1 1-2" CC 3-2 1-2" CL 3-3 NEW UG SERVICE, SEE DETAIL 2 ON SHEET UTD-3 15654 42ND AVE S. 1-3" SCL 3-1 1-2" CC 3-2 1-2" CL 3-3 NEW UG SERVICE, SEE DETAIL 2 ON SHEET UTD-3 15650 42ND AVE S. EX SCL 3-3 1-2" CC 3-3 1-2" CL 3-4 NEW UG SERVICE, SEE DETAIL 2 ON SHEET LTD-3 15646 42ND AVE S. EX SCL 3-3 1-2" CC 3-3 1-2" CL 3-4 NEW UG SERVICE, SEE DETAIL 2 ON SHEET UTD-3 15642 42ND AVE S. EX SCL 3-3 1-2" CC 3-3 1-2" CL 3-4 NEW UG SERVICE, SEE DETAIL 2 ON SHEET UTD-3 15638 42ND AVE S. EX SCL 3-3 1-2" CC 3-3 1-2" CL 3-4 NEW UG SERVICE, SEE DETAIL 2 ON SHEET UTD-3 15460 42ND AVE S. 1-3" SCL 4-3 1-2" CC 4-2 1-2" CL 4-2 NEW UG SERVICE, SEE DETAIL 2 ON SHEET UTD-3 15458 42ND AVE S. 1-3" SCL 4-3 1-2" CC 4-2 1-2" CL 4-2 NEW UG SERVICE, SEE DETAIL 2 ON SHEET UTD-3 15436 42ND AVE S. 1-3" SCL 4-3 1-2" CC 4-2 1-2" CL 4-2 STUB AT LIMITS OF DRIVEWAY PAVING FOR FUTURE SERVICE SURFACE RESTORATION AS DIRECTED BY ENGINEER PAID FOR UNDER "PROPERTY RESTORATION FOR PRIVATE SERVICES" FORCE ACCOUNT DETECTABLE MARKING TAPE 18" COVER BACKFILL WITH CLEAN NATIVE SOIL 3" POWER CONDUIT MIN SEPARATION BETWEEN POWER AND COMM 2" CONDUIT FOR COMM O PRIVATE POWER/COMM SERVICE TRENCH MINIMUM COVER OVER CONDUIT ZONE 36" IN RIGHT-OF-WAY 24" OVER POWER ON PRIVATE PROPERTY 18" OVER TELECOMM ON PRIVATE PROPERTY NOTES: 1. SERVICE TRENCH PER SCL CONSTRUTION GUIDELINE 0224.05 SCALE: NTS CAP COMM CONDUIT 4" ABOVE FINISHED GRADE HEIGHT VARIES PER BUILDING SEE DETAIL VUTD-5 18" TO 24" SCL WILL PULL NEW WIRE AND SPLICE TO CUT -OVER SERVIC DIRECT SPLICE BUILDING WALLY STRUT SUPPORT PER CODE FINISH GRADE SEE NOTE 2. 3' MIN RADIUS EXISTING SERVICE MAST NOTES: 1. ALL ABOVE GROUND CONDUITS SHALL BE RIGID GALVANIZED STEEL (RGS). CONTINUE RGS BELOW GRADE THROUGH FIRST ELBOW AND PROTECT WITH ANTI -CORROSION TAPE SUCH AS SCOTCH 51. CONTINUE BELOW GRADE CONDUIT WITH SCHEDULE 40 PVC TO HANDHOLE OR VAULT. 2. CONDUITS PER PRIVATE SERVICES SCHEDULE. 3. FLASH AND WATERPROOF ALL ROOF AND SOFFET PENETRATIONS. O UNDERGROUND TO WEATHERHEAD DETAIL SCALE: NTS r r� C L L 1 PUBLIC WORKS DEPT. -ENGI NEERI NG-STREETS-WATER-SEWER-PARKS-BUI LDING- Bwn M by descealcel chodtpd BPS wises BPS CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III UTILITY UNDERGROUNDING DETAILS PRIVATE SERVICE CONNECTIONS 58 89 Reno UTD-5 f scale 4-5"C TO TERMINAL POLE TP 5-2 a O N 0 TOP JI IL 00 00 00 00 I I JI IL 00 00 00 00 Ii I VAULT SCL 5-1 OTYPE 712-LA SCALE: NTS UTD-3, UT-5 4-5"C TO VAULT SCL 2-2 a 0 F- a 0 F- 4-5"C TO VAULT SCL 5-1 • • TOP JI IL 00 00 00 00 BOTTOM 00 00 1' 00 NNE ■■N • 00 i i OSCALE: NTS UTD-3, UT-2 TOP VAULT SCL 2-2 TYPE 712-CLX T 0 0- 0 0 0= 0 4-5"C TO VAULT SCL 3-6 LI •-4 imo PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- BY E6 designed EWN EMI checked BPS YYB BPS -w field ek no NOTES: 1. REFER TO UTILITY UNDERGROUNDING PLANS FOR PLAN VIEW OF VAULT AND DUCTBANK LAYOUTS. 2. c4,2m: REFER TO SCL STRUCTURE LOCATION TABLE ON DRAWING UTD-3 FOR LOCATION OF VAULT. LOCATION OF STATION AND OFFSET FROM SCL STRUCTURE LOCATION TABLE. CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III UTILITY UNDERGROUNDING DETAILS TERMINAL POLE AND SCL VAULT DETAILS Mtn revisions 59 89, No no UTD-6 scale plat. 1n1nmv a 0 •I• 4-5"C TO VAULT SCL 2-2 O TOP :k r � I 00 00f 00 "AU' 00� BOTTOM JU UCH. 00 00 900 00 25 TOP VAULT SCL 3-6 TYPE 712-CLX SCALE: NTS UTD-3, UT-3 0 0 CG 0= 0 0 O= 4-5"C TO VAULT SCL 4-5 a 1- 2-4"C TERMINAL POLE TP 5-1 2-4"C TERMINAL VAULT SCL 5-2 MTZ ■■■■Tool ■■■■ ■■■■ ■■■■ ■■■■ �■■■111�11�.J� rrirl 2-4"C TO VAULT SCL 1-2 .I J TOP ••• ••• ■■■ ■■■ 00 00 00 ■ BOTTOM (i +' L '+ ' '+ BOTTOM 11 • 00 00 00 00 ■■■ O O ■■■ ■■■ 0 O ■■■ W O O W I' ■ TOP VAULT SCL 1-1 OTYPE 577-LA SCALE: NTS UTD-3, UT-1 2-"C TO VAULT SCL 2-4 2-"C TO VAULT SCL 2-1 00 00 00 ■■■■ ■■■■ ■■■■ ■■■■ ■■■■ •••• a i r r- C L G. NOTES: 1. REFER TO UTILITY UNDERGROUNDING PLANS FOR PLAN VIEW OF VAULT AND DUCTBANK LAYOUTS. 2. REFER TO SCL STRUCTURE LOCATION TABLE ON DRAWING UTD-3 FOR LOCATION OF VAULT. LOCATION OF STATION AND OFFSET FROM SCL STRUCTURE LOCATION TABLE. PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- PO. dtroon chodkei wi BPS BPS cH2tix: CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III UTILITY UNDERGROUNDING DETAILS SCL VAULT DETAILS 60 89 UTD-7 f scale a H 2-4"C TO VAULT SCL 2-1 2-4"C TO VAULT SCL 1-1 TOP WI 0 0 ■■■ ■■■ O 0 ■■■ III ME 0 0 .•• 00 00 0000 BOTTOM TOP VAULT SCL 2-4 OTYPE 577-LA SCALE: NTS UTD-3, UT-2 2-4"C TO VAULT SCL 6-1 2-4"C TO VAULT SCL 3-4 2-4"C TO VAULT SCL 3-2 H 2-4"C TO VAULT SCL 3-2 a O �I ■■I IL____J■I IIII10 2-4"C TO VAULT SCL 6-2 2-4"C TO VAULT SCL 2-4 1.1 TOP • • • 00 00 00 00 BOTTOM w BOTTOM 00 00 00 00 ■■■ O O ■■■ ■■■ 0 0 ■■■ Li O O Ara TOP VAULT SCL 3-4 OTYPE 577-LA SCALE: NTS UTD-3, UT-3 2-4"C TO EXST VAULT SCL 3-5 2-4"C TO VAULT SCL 4-6 2-4"C TO VAULT SCL 4-1 2-4"C TO VAULT SCL 4-1 2-4"C TO VAULT SCL 3-4 TOP BOTTOM BOTTOM TOP VAULT SCL 4-6 O TYPE 577-LA SCALE: NTS UTD-3, UT-4 2-4"C TO EXST VAULT SCL 4-2 2-4"C TO VAULT SCL 4-5 PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- M ar BPS BPS nroi field bk Be NOTES: 1. REFER TO UTILITY UNDERGROUNDING PLANS FOR PLAN VIEW OF VAULT AND DUCTBANK LAYOUTS. 2. REFER TO SCL STRUCTURE LOCATION TABLE ON DRAWING UTD-3 FOR LOCATION OF VAULT. LOCATION OF STATION AND OFFSET FROM SCL STRUCTURE LOCATION TABLE. c4,2row CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III UTILITY UNDERGROUNDING DETAILS SCL VAULT DETAILS no am revisions (61' 89, Deno UTD-8 scale r L 1 - L date 2/2112017 ■■■■ .•.• ■■■ ■ OOc 00 IIII.• u. .. 00 00 dc. -' n it L 0 0 0 0 0 000 I' 00 00 00 BOTTOM BOTTOM VAULT SCL 5-2 TYPE 577-LA SCALE: NTS UTD-3, UT-5 2-4"C TO VAULT SCL 1-1 4-4"C TO EXST VAULT SCL 1-5 2-4"C TERMINAL POLE TP 6-1 1-,l 1 0 0 O O ■■■ Emil 0 0 0 ••• 00 00 LP, BOTTOM BOTTOM VAULT SCL 6-1 OTYPE 577-LA SCALE: NTS UTD-3, UT-6 2-4"C TO VAULT SCL 2-4 2-4"C TO VAULT SCL 6-2 a H 2-4"C TO VAULT SCL 3-4 2-4"C TO VAULT SCL 6-1 TOP U ■■• 0 0 ■■• ■•■ 0 0 ■•. ■■■ ■•M ••• 0 0 ■f■ i 00 00 00 00 TOP VAULT SCL 6-2 OTYPE 577-LA SCALE: NTS UTD-3, UT-6 2-4"C TERMINAL POLE TP 6-2 NOTES: 1. REFER TO UTILITY UNDERGROUNDING PLANS FOR PLAN VIEW OF VAULT AND DUCTBANK LAYOUTS. 2. REFER TO SCL STRUCTURE LOCATION TABLE ON DRAWING UTD-3 FOR LOCATION OF VAULT. LOCATION OF STATION AND OFFSET FROM SCL STRUCTURE LOCATION TABLE. a 0 F r- C L L PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- M diesksd BPS PP sea BPS cH2xu CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III UTILITY UNDERGROUNDING DETAILS SCL VAULT DETAILS 62 89 se. UTD-9 r scale 2-4"C TO VAULT SCL 1-1 1-3"C SERVICE TO 15837 42ND AVE S a 0 1- 000 0b 00 0 0 00 00 00 0 0 14 O TOP 88 88 88 88 00 00 00 00 BOTTOM BOTTOM 00 00 00 00 88 88 88 88 TOP 2-4"C TO VAULT SCL 2-4 2-4"C TO VAULT SCL 2-8 • 0 • 0 0 0 00 00 00 00 VAULT SCL 2-1 TYPE 507-LA SCALE: NTS UTD-3, UT-2 TOP 2-4"C TO VAULT SCL 1-1 — ' n0 00 O 00 a 0 00 00 00 0 1-3"C SERVICE TO 15854 42ND AVE S 0 0 BOTTOM BOTTOM 00 00 00 00 TOP 2 0 0 2-4"C TO VAULT SCL 2-6 00 00 00 0 VAULT SCL 1-2 TYPE 444-LA SCALE: NTS UTD-3, UT-1 a 0 1-3"C SERVICE TO 15838 42ND AVE S a 0 H a O 2-4"C TO VAULT SCL 2-5 2-4"C TO VAULT SCL 2-4 MCC) CO CO CO 00 O 0 00 O D 2-4"C TO VAULT SCL 3-1 0 0 m TOP 88 88 88 88 00 00 00 00 BOTTOM BOTTOM 00 OO 00 00 88 88 88 88 TOP O 2-4"C TO VAULT SCL 3-4 O 0 O 0 O 0 00 00 00 00 O� VAULT SCL 3-2 OTYPE 507-LA SCALE: NTS UTD-3, UT-3 2-4"C TO EXISTING VAULT SCL 3-3 0 1-3"C SERVICE TO 15603 42ND AVE S a 0 CO MC° 00 00 00 00 00 2-4"C TO VAULT SCL 3-4 2-4"C TO VAULT SCL 4-3 2 O TOP 88 88 88 88 00 00 00 00 BOTTOM 1_ BOTTOM 00 00 00 00 88 88 88 88 TOP O 0 m O 0 O 0 00 0 VAULT SCL 4-1 OTYPE 507-LA SCALE: NTS UTD-3, UT-4 00 LI°00 00 00 00 2-4"C TO VAULT SCL 4-6 NOTES: 1. REFER TO UTILITY UNDERGROUNDING PLANS FOR PLAN VIEW OF VAULT AND DUCTBANK LAYOUTS. 2. REFER TO SCL STRUCTURE LOCATION TABLE ON DRAWING UTD-3 FOR LOCATION OF VAULT. LOCATION OF STATION AND OFFSET FROM SCL STRUCTURE LOCATION TABLE. PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- dote cloolsooll EWH Qom chocked evs WON BPS fieldlk no CHznw CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III UTILITY UNDERGROUNDING DETAILS SCL VAULT DETAILS no dot. revisions 63 89 De UTD-10 no scale Este 2/2112017 r a O 1- 00 00 00• 00 2-4"C TO TERMINAL POLE TP 5-2 0 0 TOP 0-CT 00 00 QO BOTTOM LJ BOTTOM 00 00 00 00 TOP 0 0 00 00 0.0 VAULT SCL 1-4 TYPE 444-LA SCALE: NTS UTD-3, UT-1 a 0 1- 2-4"C TO VAULT SCL 2-3 a 0• 00 0** 2-4"C TO VAULT SCL 1-4 0 TOP OO 00 00 00 BOTTOM BOTTOM 00 00 00 •Q 0 0 m 00 00 *0 00 1 TOP VAULT SCL 2-3 TYPE 444-LA SCALE: NTS UTD-3, UT-2 0 a O 1- 2-4"C TO VAULT SCL 3-7 a 00 00 00 1-3"C SERVICE TO 4066 S. 158TH ST O 0 TOP 00 BOTTOM BOTTOM 00 00 00 00 TOP VAULT SCL 2-5 OTYPE 444-LA SCALE: NTS UTD-3, UT-2 O 0 00 00 *0 00 r t a O 1- 2-4"C TO VAULT SCL 3-2 1- 00 00 00* 2-4"C TO VAULT SCL 2-1 1-3"C SERVICE TO 15827 42ND AVE S — 2 O 0 TOP 00 00 00 00 BOTTOM BOTTOM 00 00 00 00 TOP 1 i .1- 00 00 0 o VAULT SCL OTYPE 444- SCALE: NTS UTD-3, UT-2 0 1-3"C SERVICE TO 15819 42ND AVE S 1-3"C SERVICE TO 4059 S 158TH ST LA 2-8 2-4"C TO VAULT SCL 2-1 a 0 1-3"C SERVICE TO 15826 42ND AVE S TOP I■■ I • ■� r L TOP 1-3"C SERVICE TO 15820 42ND AVE S HANDHOLE SCL 2-6 TYPE 233-LA SCALE: NTS UTD-3, UT-2 1-3"C SERVICE TO 15645 42ND AVE S 2-4"C TO VAULT SCL 3-2 1-3"C SERVICE TO 15660 42ND AVE S 1-3"C SERVICE TO 15654 42ND AVE S TOP BOTTOM ■ ■i ■ ■, fi I■ ■ ■■ i r L TOP 11 ■ ■ ■ ■ ■ ■ ■■■ HANDHOLE SCL 3-1 OTYPE 233-LA SCALE: NTS UTD-3, UT-3 a 0 2-4"C TO VAULT SCL 4-1 a 0 r— ■ ■ ■ ■■■ ■■■ 0 0 TOP • BOTTOM fi ■■II ■■I ■■ ■■ ri i r TOP 1-3"C SERVICE TO 15436 42ND AVE S a O 1-3"C SERVICE TO 15458 42ND AVE S 1-3"C SERVICE TO 15460 42ND AVE S HANDHOLE SCL 4-3 OTYPE 233-LA SCALE: NTS UTD-3, UT-4 0 Y 00 00 00* 00 2-4"C TO VAULT SCL 2-3 CD O 0 TOP 00 00 00 00 BOTTOM kJ BOTTOM 00 00 00 00 TOP 00 - 0 00 o O 0 VAULT SCL 3-7 TYPE 444-LA SCALE: NTS UTD-3, UT-3 O.0 10 EX. VAULT SCL 4-4 2-4"C TO L NOTES: 1. REFER TO UTILITY UNDERGROUNDING PLANS FOR PLAN VIEW OF VAULT AND DUCTBANK LAYOUTS. 2. REFER TO SCL STRUCTURE LOCATION TABLE ON DRAWING UTD-3 FOR LOCATION OF VAULT. 4- LOCATION OF STATION AND OFFSET FROM SCL STRUCTURE LOCATION TABLE. PUBLIC WORKS DEPT. -ENGI NEERING-STREETS-WATER-SEWER-PARKS-BUILDING- a drawn E checked BPS Palen BPS gad c6,2m� CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III UTILITY UNDERGROUNDING DETAILS SCL VAULT DETAILS 64 , 89 file no UTD-11 l scale ILLUMINATION LEGEND LLB WIRE NOTE, SEE SHEET CHD-2 TYPE 1 JUNCTION BOX PER WSDOT STD DWG J-40.10-03 TYPE 2 JUNCTION BOX PER WSDOT STD DWG J-40.10-03 ELECTRICAL SERVICE CABINET RGS CONDUIT PVC CONDUIT STANDARD LIGHT POLE UNDERDECK LIGHT 42ND 49+93.00 173.00' LT END MATCH EXIST 42ND 49+92.50, 36.00' RT PT 42ND 49+88.00, 21.00' LT BEGIN 42ND 49+68.00, 10.50' LT PC 42ND 49+55.00, 10.50' LT BEGIN MATCH EXIST J �2 42ND 49+57.00, 11.00' RT PC 49+00 42ND 49+55.00, 11.00' RT BEGIN MATCH EXIST NI — col x 1— 42ND 49+92.00, 47.00' RT PT GENERAL ILLUMINATION AND SIGNING NOTES: 1. 2. 42ND 50+03.00 49.00' RTO© BEGIN ALL LIGHTING EQUIPMENT BEING REMOVED IS THE RESPONSIBILITY OF THE CONTRACTOR TO DISPOSE OF. JUNCTION BOX SHALL BE FLUSH WITH FINAL GRADE AND LOCATIONS ARE SCHEMATIC, FINAL LOCATIONS SHALL MEET ALL CODE REQUIREMENTS AND BE APPROVED BY FIELD ENGINEER. 3. CONDUIT RUN LOCATIONS ARE APPROXIMATE AND SHALL BE PLACED IN JOINT TRENCH WHENEVER POSSIBLE AND FINAL LOCATIONS SHALL BE APPROVED BY FIELD ENGINEER. 4. CONTRACTOR TO TRENCH AND BACK FILL TO WSDOT STANDARD SPECIFICATION 8-20.3 AND RESTORE SURFACE TO LANDSCAPE PLANS. 5. FOR SIGN SCHEDULES REFER TO DRAWINGS CHD-3 AND CHD-4. 50-00 42ND 50+13.00. 173.00' LT BEGIN MATCH EXIST 42ND 50+03.00. 173.00' LT BEGIN MATCH EXIST 42ND 50+14.00, 66.00' LT END 42ND 50+02.13, 20.59' LT END 00 Al SE1-04; 42ND 50+44.00. 12.00' LT BEGIN A-6 12' 51+00 1-02t 42ND AVE S. 42ND 50+13.54, 49.04' R END 42ND 50+02.39, 66.00' RT END MATCH EXIST <61-06; 1-0 4 42ND 50+44.00, 0.00' RT BEGIN 42ND 50+50.00, 12.00' RT BEGIN O 42ND 49+91.00, 66.00' RT' END/, MATCH EXIST PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- M dab. moved MGJ -9 RJM vas field Mr no Al A-5 52+00 CHANNELIZATION SIGNING ILLUMINATION A2 MEND 0 20 40 SCALE IN FEET PAVEMENT MARKING NOTES: 12" PLASTIC STOP BAR, SEE CITY OF TUKWILA STD PLAN DWG NO. RS-19 DOUBLE SOLID YELLOW, SEE CITY OF TUKWILA STD PLAN DWG NO. RS-13 RPM WIDE LANE LINE, SEE WSDOT STD PLAN M-20.50-02 PLASTIC TURN ARROW, SEE CITY OF TUKWILA STD PLAN DWG NO. RS-18 PLASTIC SHARROW SYMBOL, SEE P PLASTIC WIDE LANE LINE, SEE WSDOT STD PLAN M-20.10-02 PLASTIC LINE, 4" WHITE PLASTIC CROSSWALK LINE, 12" WHITE SIGNING SYMBOLS EXISTING PROPOSED SIGN NUMBER c: : CD FROM TO SIGN RELOCATION �J ILLUMINATION CONSTRUCTION NOTES: OCONSTRUCT FOUNDATION PER CITY OF TUKWILA, FOUNDATION DETAIL ON STANDARD PLAN RS-21. SEE SHEET CHD-2 FOR POLE LOCATIONS. INSTALL LIGHT POLE STANDARD WITH LUMINAIRE AND PHOTOCELL PER CITY OF TUKWILA, ALTERNATIVE RESIDENTIAL STREET LIGHT POLE STANDARD PLAN RS-21. CONNECT RGS CONDUIT AND NEMA 4X JUNCTION BOX TO COLUMN AND RGS CONDUIT TO CROSS BEAM OF EXISTING BRIDGE #518/018S PIER #root, PER WSDOT STD. PLAN J.40-39.00 AND DETAIL ON SHEET CHD-1. OMOUNT PENDANT STYLE DECK LIGHT TO UNDERDECK OF EXISTING BRIDGE #518/018S. SEE DETAIL ON SHEET CHD-1. TIE WIRES TO USE PHOTOCELL ON POLE B-8. OCOORDINATE LIGHT POLE FOUNDATION WITH END OF WALL CONSTRUCTION. OMAINTAIN AND PROTECT EXISTING LUMINAIRE, POLE, CONDUIT AND WIRING. OTIE NEW CONDUIT INTO EXISTING JBOX AND SPLICE INTO EXISTING LIGHTING CIRCUIT. OREMOVE EXISTING LUMINAIRE AND POLE. REMOVE EXISTING FOUNDATION, ADJACENT PULL BOX, WIRING AND ABANDON CONDUIT. REMOVE EXISTING WIRING TO REMOVED LIGHTS AND ABANDON CONDUIT. MAINTAIN AND PROTECT EXISTING POLE CONDUIT AND WIRING. 10 REMOVE EXISTING COBRA HEAD AND REPLACE WITH NEW LUMINAIRE. 11 12 CONSTRUCT FOUNDATION AND INSTALL WSDOT TYPE B MODIFIED SERVICE CABINET ON PEDESTAL. SEE STD DWG J-3b. CONTRACTOR SHALL FIELD VERIFY EXISTING LIGHTING SERVICE AND VERIFY VOLTAGE DROPS WITH THE ADDITION OF LUMINAIRES C-1, C-2 AND C-3. CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III CHANNELIZATION, ILLUMINATION AND SIGNING PLAN no date 1 revisions 65 89, file no CH-1 scale 1"=20' •-• ma. antnnn ILLUMINATION LEGEND WIRE NOTE, SEE SHEET CHD-2 TYPE 1 JUNCTION BOX PER WSDOT STD DWG J-40.10-03 TYPE 2 JUNCTION BOX PER WSDOT STD DWG J-40.10-03 ® ELECTRICAL SERVICE CABINET — RGS CONDUIT PVC CONDUIT STANDARD LIGHT POLE UNDERDECK LIGHT 12' Al 1 2_0 = 54 i 00 A-3 GENERAL ILLUMINATION AND SIGNING NOTES: 1. ALL LIGHTING EQUIPMENT BEING REMOVED IS THE RESPONSIBILITY OF THE CONTRACTOR TO DISPOSE OF. 2. JUNCTION BOX SHALL BE FLUSH WITH FINAL GRADE AND LOCATIONS ARE SCHEMATIC, FINAL LOCATIONS SHALL MEET ALL CODE REQUIREMENTS AND BE APPROVED BY FIELD ENGINEER. 3. CONDUIT RUN LOCATIONS ARE APPROXIMATE AND SHALL BE PLACED IN JOINT TRENCH WHENEVER POSSIBLE AND FINAL LOCATIONS SHALL BE APPROVED BY FIELD ENGINEER. 4. CONTRACTOR TO TRENCH AND BACK FILL TO WSDOT STANDARD SPECIFICATION 8-20.3 AND RESTORE SURFACE TO LANDSCAPE PLANS. 5. FOR SIGN SCHEDULES REFER TO DRAWINGS CHD-3 AND CHD-4. 55+00 2 42ND 56+58.50, 86.00' LT END/\ Al Al 42ND 56+08.00, 12.00' LT 2-0D 42ND AVE S. 2-0 42ND 56+17.00, 12.00' L END 2-05 42-03;\ (e2-02; 1, 56+00 42ND 56+17.00, 12.00' RT END 42ND 56+30.00, 0.00' RT END I 2-03 42ND 56+58.50, 43.00' RT BEGIN 00 42ND 56+58.50, 86.00' RT END S. 158TH S 42ND 56+68.00, 116.00' LT /BEGIN O B2 42ND 56+70.50, 75.00' LT AP 42ND 56+47.00, 43.00' LT BEGIN 42ND 56+58.50, 43.00' LT.. /BEGIN,, ENDO 42ND 56+70.50, 58.00' LT END B-1 57+'0 A4 131 B2 2' 12' ' 12' 4,A li1 prof* CHANNELIZATION SIGNING ILLUMINATION 42-05; Oct-06; c2-09 2ND 57+00.00, 12.00' LT BEGIN Ij �-2-0• 42ND 57+00.00, 0.00' RT 2-0 BEGIN O 42ND 57+00.00, 12.00' RT BEGIN 42ND 56+69.00 43.00' RT END MEM 0 20 40 SCALE IN FEET O MATCH LINE CH-3 42ND PAVEMENT MARKING NOTES: 12" PLASTIC STOP BAR, SEE CITY OF TUKWILA STD PLAN DWG NO. RS-19 DOUBLE SOLID YELLOW, SEE CITY OF TUKWILA STD PLAN DWG NO. RS-13 RPM I./VIDE LANE LINE, SEE WSDOT STD PLAN M-20.50-02 PLASTIC TURN ARROW, SEE CITY OF TUKWILA STD PLAN DWG NO. RS-18 PLASTIC SHARROW SYMBOL, SEE I PLASTIC WIDE LANE LINE, SEE WSDOT STD PLAN M-20.10-02 PLASTIC LINE, 4" WHITE PLASTIC CROSSWALK LINE, 12" WHITE SIGNING SYMBOLS EXISTING PROPOSED SIGN NUMBER t� X FROM TO SIGN RELOCATION n ILLUMINATION CONSTRUCTION NOTES: OCONSTRUCT FOUNDATION PER CITY OF TUKWILA, FOUNDATION DETAIL ON STANDARD PLAN RS-21. SEE SHEET CHD-2 FOR POLE LOCATIONS. INSTALL LIGHT POLE STANDARD WITH LUMINAIRE AND PHOTOCELL PER CITY OF TUKWILA, ALTERNATIVE RESIDENTIAL STREET LIGHT POLE STANDARD PLAN RS-21. CONNECT RGS CONDUIT AND NEMA 4X JUNCTION BOX TO COLUMN AND RGS CONDUIT TO CROSS BEAM OF EXISTING BRIDGE #518/018S PIER Moot, PER WSDOT STD. PLAN J.40-39.00 AND DETAIL ON SHEET CHD-1. MOUNT PENDANT STYLE DECK LIGHT TO UNDERDECK OF EXISTING BRIDGE #518/0185. SEE DETAIL ON SHEET CHD-1. TIE WIRES TO USE PHOTOCELL ON POLE B-8. COORDINATE LIGHT POLE FOUNDATION WITH END OF WALL CONSTRUCTION. MAINTAIN AND PROTECT EXISTING LUMINAIRE, POLE, CONDUIT AND WIRING. TIE NEW CONDUIT INTO EXISTING JBOX AND SPLICE INTO EXISTING LIGHTING CIRCUIT. REMOVE EXISTING LUMINAIRE AND POLE. REMOVE EXISTING FOUNDATION, ADJACENT PULL BOX, WIRING AND ABANDON CONDUIT. REMOVE EXISTING WIRING TO REMOVED LIGHTS AND ABANDON CONDUIT. MAINTAIN AND PROTECT EXISTING POLE CONDUIT AND WRING. REMOVE EXISTING COBRA HEAD AND REPLACE WITH NEW LUMINAIRE. CONSTRUCT FOUNDATION AND INSTALL WSDOT TYPE B MODIFIED SERVICE CABINET ON PEDESTAL. SEE STD DWG J-3b. CONTRACTOR SHALL FIELD VERIFY EXISTING LIGHTING SERVICE AND VERIFY VOLTAGE DROPS WITH THE ADDITION OF LUMINAIRES C-1, C-2 AND C-3. 2IL PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- M Ode KRW ohydwd MG) Na..q RJR Pa* CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III CHANNELIZATION, ILLUMINATION AND SIGNING PLAN 66 89 fle no CH-2 Miele 1'=20' 0 z a v w z J x 0 H 2 B2 3-01) B1 B2 1 ILLUMINATION LEGEND • E WIRE NOTE, SEE SHEET CHD-2 TYPE 1 JUNCTION BOX PER WSDOT STD DWG J-40.10-03 TYPE 2 JUNCTION BOX PER WSDOT STD DWG J-40.10-03 ELECTRICAL SERVICE CABINET RGS CONDUIT PVC CONDUIT STANDARD LIGHT POLE UNDERDECK LIGHT N. B1 B1 12' 12' B-2 58i00 2' 59+00 B-3 42ND AVE S. 60+00 B-4 61+00 B-5 2,J 62+00 2' 12' 12' _\ MED 0 20 40 SCALE IN FEET PUBLIC WORKS DEPT. -ENGI NEERING-STREETS-WATER-SEWER-PARKS-BUILDI NG- by &Yned MHK KRW yea ICJ mons RJM Pwi kW Mc ro3 3-0 CHANNELIZATION SIGNING ILLUMINATION GENERAL ILLUMINATION AND SIGNING NOTES: 1. ALL LIGHTING EQUIPMENT BEING REMOVED IS THE RESPONSIBILITY OF THE CONTRACTOR TO DISPOSE OF. 2. JUNCTION BOX SHALL BE FLUSH WITH FINAL GRADE AND LOCATIONS ARE SCHEMATIC, FINAL LOCATIONS SHALL MEET ALL CODE REQUIREMENTS AND BE APPROVED BY FIELD ENGINEER. 3. CONDUIT RUN LOCATIONS ARE APPROXIMATE AND SHALL BE PLACED IN JOINT TRENCH WHENEVER POSSIBLE AND FINAL LOCATIONS SHALL BE APPROVED BY FIELD ENGINEER. 4. CONTRACTOR TO TRENCH AND BACK FILL TO WSDOT STANDARD SPECIFICATION 8-20.3 AND RESTORE SURFACE TO LANDSCAPE PLANS. 5. FOR SIGN SCHEDULES REFER TO DRAWINGS CHD-3 AND CHD-4. PAVEMENT MARKING NOTES: 12" PLASTIC STOP BAR, SEE CITY OF TUKWILA STD PLAN DWG NO. RS-19 DOUBLE SOLID YELLOW, SEE CITY OF TUKWILA STD PLAN DWG NO. RS-13 RPM WIDE LANE LINE, SEE WSDOT STD PLAN M-20.50-02 PLASTIC TURN ARROW, SEE CITY OF TUKWILA STD PLAN DWG NO. RS-18 PLASTIC SHARROW SYMBOL, SEE PVD-1 PLASTIC WIDE LANE LINE, SEE WSDOT STD PLAN M-20.10-02 PLASTIC LINE, 4" WHITE PLASTIC CROSSWALK LINE, 12" WHITE SIGNING SYMBOLS EXISTING PROPOSED SIGN NUMBER U FROM TO SIGN RELOCATION a N / s0 o ILLUMINATION CONSTRUCTION NOTES: MATCH LINE CH-4 4 CONSTRUCT FOUNDATION PER CITY OF TUKWILA, FOUNDATION DETAIL ON STANDARD PLAN RS-21. SEE SHEET CHD-2 FOR POLE LOCATIONS. INSTALL LIGHT POLE STANDARD WITH LUMINAIRE AND PHOTOCELL PER CITY OF TUKWILA, ALTERNATIVE RESIDENTIAL STREET LIGHT POLE STANDARD PLAN RS-21. CONNECT RGS CONDUIT AND NEMA 4X JUNCTION BOX TO COLUMN AND RGS CONDUIT TO CROSS BEAM OF EXISTING BRIDGE #518/0185 PIER Moa, PER WSDOT STD. PLAN J.40-39.00 AND DETAIL ON SHEET CHD-1. MOUNT PENDANT STYLE DECK LIGHT TO UNDERDECK OF EXISTING BRIDGE #518/0185. SEE DETAIL ON SHEET CHD-1. TIE WIRES TO USE PHOTOCELL ON POLE 8-8. COORDINATE LIGHT POLE FOUNDATION WITH END OF WALL CONSTRUCTION. MAINTAIN AND PROTECT EXISTING LUMINAIRE, POLE, CONDUIT AND WRING. TIE NEW CONDUIT INTO EXISTING JBOX AND SPLICE INTO EXISTING LIGHTING CIRCUIT. REMOVE EXISTING LUMINAIRE AND POLE. REMOVE EXISTING FOUNDATION, ADJACENT PULL BOX, WIRING AND ABANDON CONDUIT. REMOVE EXISTING WRING TO REMOVED LIGHTS AND ABANDON CONDUIT. MAINTAIN AND PROTECT EXISTING POLE CONDUIT AND WIRING. REMOVE EXISTING COBRA HEAD AND REPLACE WITH NEW LUMINAIRE. CONSTRUCT FOUNDATION AND INSTALL WSDOT TYPE B MODIFIED SERVICE CABINET ON PEDESTAL. SEE STD DWG J-3b. CONTRACTOR SHALL FIELD VERIFY EXISTING LIGHTING SERVICE AND VERIFY VOLTAGE DROPS WITH THE ADDITION OF LUMINAIRES C-1, C-2 AND C-3. CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III CHANNELIZATION, ILLUMINATION AND SIGNING PLAN revisions 67 89 file n° CH-3 scale 1'=20' L nnm ommfn H LINE CH-3 42ND 1- B2 12' 12' B1 63+00 B-6 'cE4-Oti 4-0 GENERAL ILLUMINATION AND SIGNING NOTES: 1. ALL LIGHTING EQUIPMENT BEING REMOVED IS THE RESPONSIBILITY OF THE CONTRACTOR TO DISPOSE OF. 2. JUNCTION BOX SHALL BE FLUSH WITH FINAL GRADE AND LOCATIONS ARE SCHEMATIC, FINAL LOCATIONS SHALL MEET ALL CODE REQUIREMENTS AND BE APPROVED BY FIELD ENGINEER. 3. CONDUIT RUN LOCATIONS ARE APPROXIMATE AND SHALL BE PLACED IN JOINT TRENCH WHENEVER POSSIBLE AND FINAL LOCATIONS SHALL BE APPROVED BY FIELD ENGINEER. 4. CONTRACTOR TO TRENCH AND BACK FILL TO WSDOT STANDARD SPECIFICATION 8-20.3 AND RESTORE SURFACE TO LANDSCAPE PLANS. 5. FOR SIGN SCHEDULES REFER TO DRAWINGS CHD-3 AND CHD-4. B2 • ♦ B1 64+00 42ND AVE S. L_ - B-7 65+00 B-8 CHANNELIZATION SIGNING ILLUMINATION • ♦ ♦ ♦ ♦ • ILLUMINATION LEGEND WIRE NOTE, SEE SHEET CHD-2 TYPE 1 JUNCTION BOX PER WSDOT STD DWG-1-4010-03 TYPE 2 JUNCTION BOX PER WSDOT STD DWG J-40.10-03 ELECTRICAL SERVICE CABINET RGS CONDUIT PVC CONDUIT STANDARD LIGHT POLE UNDERDECK LIGHT • ♦ • ♦ ♦ • ♦ 1♦ ♦ 0 20 40 SCALE IN FEET 2'J12' PAVEMENT MARKING NOTES: 12" PLASTIC STOP BAR, SEE CITY OF TUKWILA STD PLAN DWG NO. RS-19 DOUBLE SOLID YELLOW, SEE CITY OF TUKWILA STD PLAN DWG NO. RS-13 RPM WIDE LANE LINE, SEE WSDOT STD PLAN M-20.50-02 PLASTIC TURN ARROW, SEE CITY OF TUKWILA STD PLAN DWG NO. RS-18 PLASTIC SHARROW SYMBOL, SEE P0.1 PLASTIC WIDE LANE LINE, SEE WSDOT STD PLAN M-20.10-02 PLASTIC LINE, 4" WHITE PLASTIC CROSSWALK LINE, 12" WHITE SIGNING SYMBOLS SIGN NUMBER EXISTING PROPOSED c- X,; c FROM TO SIGN RELOCATION z ILLUMINATION CONSTRUCTION NOTES: 1 O CONSTRUCT FOUNDATION PER CITY OF TUKWLA, FOUNDATION DETAIL ON STANDARD PLAN RS-21. SEE SHEET CHD-2 FOR POLE LOCATIONS. OINSTALL LIGHT POLE STANDARD WITH LUMINAIRE AND PHOTOCELL PER CITY OF TUKWILA, ALTERNATIVE RESIDENTIAL STREET LIGHT POLE STANDARD PLAN RS-21. CONNECT RGS CONDUIT AND NEMA 4X JUNCTION BOX TO COLUMN AND RGS CONDUIT TO CROSS BEAM OF EXISTING BRIDGE #518/018S PIER #xxx, PER WSDOT STD. PLAN J.40-39.00 AND DETAIL ON SHEET CHD-1. MOUNT PENDANT STYLE DECK LIGHT TO UNDERDECK OF EXISTING BRIDGE #518/0185. SEE DETAIL ON SHEET CHD-1. TIE WIRES TO USE PHOTOCELL ON POLE B-8. COORDINATE LIGHT POLE FOUNDATION WITH END OF WALL CONSTRUCTION. MAINTAIN AND PROTECT EXISTING LUMINAIRE, POLE, CONDUIT AND WIRING. TIE NEW CONDUIT INTO EXISTING JBOX AND SPLICE INTO EXISTING LIGHTING CIRCUIT. REMOVE EXISTING LUMINAIRE AND POLE. REMOVE EXISTING FOUNDATION, ADJACENT PULL BOX, WIRING AND ABANDON CONDUIT. REMOVE EXISTING WIRING TO REMOVED LIGHTS AND ABANDON CONDUIT. MAINTAIN AND PROTECT EXISTING POLE CONDUIT AND WRING. REMOVE EXISTING COBRA HEAD AND REPLACE WITH NEW LUMINAIRE. CONSTRUCT FOUNDATION AND INSTALL WSDOT TYPE B MODIFIED SERVICE CABINET ON PEDESTAL. SEE STD DWG J-3b. CONTRACTOR SHALL FIELD VERIFY EXISTING LIGHTING SERVICE AND VERIFY VOLTAGE DROPS WITH THE ADDITION OF LUMINAIRES C-1, C-2 AND C-3. IL PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- by dais choctsd MG) RJM CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III CHANNELIZATION, ILLUMINATION AND SIGNING PLAN 68 89 teno CH4 scale 1=20' ILLUMINATION LEGEND WIRE NOTE, SEE SHEET CHD-2 TYPE 1 JUNCTION BOX PER WSDOT STD DWG J-40.10-03 TYPE 2 JUNCTION BOX PER WSDOT STD DWG J-40.10-03 ELECTRICAL SERVICE CABINET RGS CONDUIT PVC CONDUIT STANDARD LIGHT POLE UNDERDECK LIGHT CH LINE CH-4 42 12'2' 67+00 12' ♦ C1 00 C-3 2' 42ND AVE S. 00� 68+00 C-2 69+00 C2 42ND 70+44.00, 0.00' Rif BEGIN TAPER C1 12' 70+00 GENERAL ILLUMINATION AND SIGNING NOTES: 1. ALL LIGHTING EQUIPMENT BEING REMOVED IS THE RESPONSIBILITY OF THE CONTRACTOR TO DISPOSE OF. 2. JUNCTION BOX SHALL BE FLUSH WITH FINAL GRADE AND LOCATIONS ARE SCHEMATIC, FINAL LOCATIONS SHALL MEET ALL CODE REQUIREMENTS AND BE APPROVED BY FIELD ENGINEER. 3. CONDUIT RUN LOCATIONS ARE APPROXIMATE AND SHALL BE PLACED IN JOINT TRENCH WHENEVER POSSIBLE AND FINAL LOCATIONS SHALL BE APPROVED BY FIELD ENGINEER. 4. CONTRACTOR TO TRENCH AND BACK FILL TO WSDOT STANDARD SPECIFICATION 8-20.3 AND RESTORE SURFACE TO LANDSCAPE PLANS. 5. FOR SIGN SCHEDULES REFER TO DRAWINGS CHD-3 AND CHD-4. PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING. by deM designed MHK KRW checked MGJ Proles; RJM pml mr field by ne 42ND 70+31.08 0.00' RT AP 42ND 70+30.50, 12.00' RT CHANNELIZATION SIGNING ILLUMINATION 0 7 130, 3 cE5_0� (P5-02t <05-0 % C2 70+04.21, 3.59' RT 42ND AP 00 71+28.14, 3.45' LT 0 20 40 SCALE IN FEET 0 MATCH LINE CH-6 PAVEMENT MARKING NOTES: 12" PLASTIC STOP BAR, SEE CITY OF TUKWILA STD PLAN DWG NO. RS-19 DOUBLE SOLID YELLOW, SEE CITY OF TUKWILA STD PLAN DWG NO. RS-13 RPM WIDE LANE LINE, SEE WSDOT STD PLAN M-20.50-02 PLASTIC TURN ARROW, SEE CITY OF TUKWILA STD PLAN DWG NO. RS-18 PLASTIC SHARROW SYMBOL, SEE PVD-1 PLASTIC WIDE LANE LINE, SEE WSDOT STD PLAN M-20.10-02 PLASTIC LINE, 4" WHITE PLASTIC CROSSWALK LINE, 12" WHITE SIGNING SYMBOLS EXISTING PROPOSED SIGN NUMBER t; X.; C^_/ FROM TO SIGN RELOCATION c1 ILLUMINATION CONSTRUCTION NOTES: OCONSTRUCT FOUNDATION PER CITY OF TUKWILA, FOUNDATION DETAIL ON STANDARD PLAN RS-21. SEE SHEET CHD-2 FOR POLE LOCATIONS. OINSTALL LIGHT POLE STANDARD WITH LUMINAIRE AND PHOTOCELL PER CITY OF TUKWILA, ALTERNATIVE RESIDENTIAL STREET LIGHT POLE STANDARD PLAN RS-21. CONNECT RGS CONDUIT AND NEMA 4X JUNCTION BOX TO COLUMN AND RGS CONDUIT TO CROSS BEAM OF EXISTING BRIDGE #518/0185 PIER #xoa, PER WSDOT STD. PLAN J.40-39.00 AND DETAIL ON SHEET CHD-1. OMOUNT PENDANT STYLE DECK LIGHT TO UNDERDECK OF EXISTING BRIDGE #518/018S. SEE DETAIL ON SHEET CHD-1. TIE WIRES TO USE PHOTOCELL ON POLE B-8. OCOORDINATE LIGHT POLE FOUNDATION WITH END OF WALL CONSTRUCTION. OMAINTAIN AND PROTECT EXISTING LUMINAIRE, POLE, CONDUIT AND WIRING. OTIE NEW CONDUIT INTO EXISTING JBOX AND SPLICE INTO EXISTING LIGHTING CIRCUIT. OREMOVE EXISTING LUMINAIRE AND POLE. REMOVE EXISTING FOUNDATION, ADJACENT PULL BOX, WIRING AND ABANDON CONDUIT. T 1 OREMOVE EXISTING WIRING TO REMOVED LIGHTS AND ABANDON CONDUIT. MAINTAIN AND PROTECT EXISTING POLE CONDUIT AND WIRING. 10 REMOVE EXISTING COBRA HEAD AND REPLACE WITH NEW LUMINAIRE. 11 CONSTRUCT FOUNDATION AND INSTALL WSDOT TYPE B MODIFIED SERVICE CABINET ON PEDESTAL. SEE STD DWG J-3b. 12 CONTRACTOR SHALL FIELD VERIFY EXISTING LIGHTING SERVICE AND VERIFY VOLTAGE DROPS WITH THE ADDITION OF LUMINAIRES C-1, C-2 AND C-3. CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III CHANNELIZATION, ILLUMINATION AND SIGNING PLAN 69 89 , file no CH-5 scale 1'=20' 42ND 71+77.89, 17.50' RT \ END /� \ 42ND 71+78.00, 5.50' LT END TAPER 42ND 71+81.00, 0.00' RT i i n 0\ 12' i r 13'± 5.50', \ • 1 \ 1 \ 1 \ 1 \ 73+ 0 L 42ND 72+26.00, 0.00' RT 42ND 72+52.00, 5.50' LT END 74+00 GENERAL ILLUMINATION AND SIGNING NOTES: 1. ALL LIGHTING EQUIPMENT BEING REMOVED IS THE RESPONSIBILITY OF THE CONTRACTOR TO DISPOSE OF. 2. JUNCTION BOX SHALL BE FLUSH WITH FINAL GRADE AND LOCATIONS ARE SCHEMATIC, FINAL LOCATIONS SHALL MEET ALL CODE REQUIREMENTS AND BE APPROVED BY FIELD ENGINEER. 3. CONDUIT RUN LOCATIONS ARE APPROXIMATE AND SHALL BE PLACED IN JOINT TRENCH WHENEVER POSSIBLE AND FINAL LOCATIONS SHALL BE APPROVED BY FIELD ENGINEER. 4. CONTRACTOR TO TRENCH AND BACK FILL TO WSDOT STANDARD SPECIFICATION 8-20.3 AND RESTORE SURFACE TO LANDSCAPE PLANS. 5. FOR SIGN SCHEDULES REFER TO DRAWINGS CHD-3 AND CHD-4. 75+00 SEA ILLUMINATION LEGEND GI WIRE NOTE, SEE SHEET CHD-2 TYPE 1 JUNCTION BOX PER WSDOT STD DWG J-40.10-03 TYPE 2 JUNCTION BOX PER WSDOT STD DWG J-40.10-03 ELECTRICAL SERVICE CABINET RGS CONDUIT PVC CONDUIT STANDARD LIGHT POLE UNDERDECK LIGHT 6.50' b 13 #a 42ND 72+29.00, • + 15.00' RT 42ND 71+78.00, 6.50' RT O �\ 1 1 1 1 1 1 1 1 1 1 1 1 1 1 BEGIN 42ND 71+44.00, 15.00' RT 42ND 71+41.00, 17.00' RT END/\ 42ND AVE S. 42ND 72+54.00, 6.50' RT 1 END® 1 CHANNELIZATION SIGNING ILLUMINATION 0 20 40 SCALE IN FEET PAVEMENT MARKING NOTES: 12" PLASTIC STOP BAR, SEE CITY OF TUKWILA STD PLAN DWG NO. RS-19 DOUBLE SOLID YELLOW, SEE CITY OF TUKWILA STD PLAN DWG NO. RS-13 RPM WIDE LANE LINE, .SEE 1%1/SDOT STD PLAN M-20.50-02 PLASTIC TURN ARROW, SEE CITY OF TUKWILA STD PLAN DWG NO. RS-18 PLASTIC SHARROW SYMBOL, SEE PVD-1 PLASTIC WIDE LANE LINE, SEE WSDOT STD PLAN M-20.10-02 PLASTIC LINE, 4" WHITE PLASTIC CROSSWALK LINE, 12" WHITE SIGNING SYMBOLS SIGN NUMBER EXISTING PROPOSED X-; K FROM TO SIGN RELOCATION d �J ILLUMINATION CONSTRUCTION NOTES: OCONSTRUCT FOUNDATION PER CITY OF TUKWILA, FOUNDATION DETAIL ON STANDARD PLAN RS-21. SEE SHEET CHD-2 FOR POLE LOCATIONS. INSTALL LIGHT POLE STANDARD WITH LUMINAIRE AND PHOTOCELL PER CITY OF TUKWILA, ALTERNATIVE RESIDENTIAL STREET LIGHT POLE STANDARD PLAN RS-21. OCONNECT RGS CONDUIT AND NEMA 4X JUNCTION BOX TO COLUMN AND RGS CONDUIT TO CROSS BEAM OF EXISTING BRIDGE #518/0185 PIER #xxx, PER WSDOT STD. PLAN J.40-39.00 AND DETAIL ON SHEET CHD-1. OMOUNT PENDANT STYLE DECK LIGHT TO UNDERDECK OF EXISTING BRIDGE #518/018S. SEE DETAIL ON SHEET CHD-1. TIE WIRES TO USE PHOTOCELL ON POLE B-8. OCOORDINATE LIGHT POLE FOUNDATION WITH END OF WALL CONSTRUCTION. OMAINTAIN AND PROTECT EXISTING LUMINAIRE, POLE, CONDUIT AND WIRING. OTIE NEW CONDUIT INTO EXISTING JBOX AND SPLICE INTO EXISTING LIGHTING CIRCUIT. OREMOVE EXISTING LUMINAIRE AND POLE. REMOVE EXISTING FOUNDATION, ADJACENT PULL BOX, WRING AND ABANDON CONDUIT. OREMOVE EXISTING WRING TO REMOVED LIGHTS AND ABANDON CONDUIT. MAINTAIN AND PROTECT EXISTING POLE CONDUIT AND WRING. 10 REMOVE EXISTING COBRA HEAD AND REPLACE WITH NEW LUMINAIRE. 11 CONSTRUCT FOUNDATION AND INSTALL WSDOT TYPE B MODIFIED SERVICE CABINET ON PEDESTAL. SEE STD DWG J-3b. 12 CONTRACTOR SHALL FIELD VERIFY EXISTING LIGHTING SERVICE AND VERIFY VOLTAGE DROPS WITH THE ADDITION OF LUMINAIRES C-1, C-2 AND C-3. L IL PUBLIC WORKS DEPT. -ENGIN EERI NG-STREETS-WATER-SEWER-PARKS-BUILDING- Prol fuLl bY KFtW MGJ RIM 4- CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III CHANNELIZATION, ILLUMINATION AND SIGNING PLAN 7O, 89 Ike no CH-6 scale 1 "=20' 32( A-6 248, 148 GND (CIRCUIT A) 248, 148 GND (CIRCUIT A) A-5 A-4 LEGEND STANDARD LIGHT POLE UNDERDECK LIGHT EXISTING LIGHT POLE RGS CONDUIT PVC CONDUIT EXISTING CONDUIT INSTALL STAINLESS STEEL CHANNELS PER WSDOT STANDARD PLAN J-60.13-00. C-3 248, 148 GND EXISTING CIRCUIT (CIRCUIT C) BRIDGE DECK A-3 2-8 (CIRCUIT A) 24t6 (CIRCUIT B) 146 GND M32M A-2 A-1 248, 148 GND (CIRCUIT A) EXISTING CIRCUIT (CIRCUIT C) TIE INTO EXISTING CIRCUIT (CIRCUIT C) C-2 C-1 EX-1 24t8, 148 GND EXISTING CIRCUIT WIRING SCHEMATIC (CIRCUIT C) 42ND AVE S & SOUTHCENTER BLVD EXISTING SERVICE (SERVICE 2) CITY OF TUKWILA 3/e" DIAM. GALV RESIN BONDED ANCHOR WITH 4 'A" MIN. EMBEDMENT, TYPICAL PENDANT (3/" CONDUIT) 31' DIA. GALV STL HANGER ROD W/2 HEX NUTS & LOCK WASHERS FLEXIBLE CONDUIT NEW SERVICE (TYPE S MODIFIED) CIRCUIT A (LIGHTING SOUTH) CIRCUIT B (LIGHTING NORTH) 24t8, 148 GND (CIRCUIT B) B-2 B-3 B-4 B-5 24t8, 148 GND (CIRCUIT B) WIRING SCHEMATIC 42ND AVE S AND S 158TH ST NEW SERVICE 1 CITY OF TUKWILA EXISTING SERVICE 2 CIRCUIT C (EXISTING LIGHTING) FACE OF GIRDER 'A" FABRIC PAD 4"x4" SQ. BOND TO STEEL BAR WITH APPROVED EPDXY DO NOT DRILL INTO GIRDER LED UNDER DECK ` L 31/2 x 3/ x % LUMINAIRE; BOTTOM PRESTRESSED OF LIGHT FLUSH WITH CONCRETE GIRDER 4 - 3/e" o BOLTS W/2 BOTTOM OF GIRDERS HEX NUTS & LOCK WASHERS NOTE: ALL MATERIAL SHALL BE GALVANIZED UNDERDECK LIGHT DETAIL AFTER FABRICATION PER AASHTO SCALE: NTS M111 OR AAHTO M232. PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- by STEP 1 - TURN OUTER NUT TO ALIGN VERTICAL HANGER RODS. STEP 2 - AFTER PROVIDING A TIGHT FIT BETWEEN FABRIC PAD AND GIRDER WED, TURN OUTER NUT ONE FULL TURN AWAY FROM GIRDER WEB (TYP. FOR BOTH ENDS OF L 316 x 3%). STEP 3 - TURN INNER NUT 16 TURN AGAINST STEEL BAR AFTER SNUG TIGHTENING. L 3% x 3/ x 3% %" DIA. BOLT '/" STEEL BAR 4" x 4" SQ. LIGHT SUPPORT DETAIL n SCALE: NTS (M cs ov dmocksd MGJ poI •V cS 248, 148 GND — 2-#8, 14t8 GND (CIRCUIT B) B-6 ISOMETRIC VIEW SECTION OA B-7 (CIRCUIT B) B-8 CLAMP SHALL FULLY SPAN THE ENTIRE WIDTH OF THE CONDUIT SEE STRAP THICKNESS. 33/9' DIAM. GALV RESIN BONDED ANCHOR WITH 4 'A" MIN. EMBEDMENT, TYPICAL CONNECT BOLT WITH LOCK WASHER AND FLAT WASHER (TYP.) 248, 148 GND (CIRCUIT B) B-9 STRAP THICKNESS CHART NOMINAL STRAP PIPE SIZE (IN.) THICKNESS 1/2 - 2 > OR = 1/8" > 2 -5 > OR = 1/4" 6 > OR = 1/4" STAINLESS STEEL STRAPS SCALE NTS NOTE: 1. DRILLING THROUGH REINFORCED STEEL IS NOT ALLOWED. CONTRACTOR TO FIELD LOCATE STEEL BEFORE DRILLING. 2. IF STEEL IS HIT WHILE DRILLING, THE LOCATION SHALL BE MOVED AND ABANDONED HOLE FILLED WITH GROUT CONFORMING TO STANDARD SPECIFICATION 6-02.3(20). RESIN BOND SHALL HAVE A MINIMUM STRENGTH OF 100 LB. 3. NUMBER OF STRAPS SHALL BE DETERMINED BY NUMBER OF CONDUITS TO BE ATTACHED TO GRADE BEAM. SEE CONDUIT PLANS FOR CONDUIT AND ROUTING. BRIDGE BEAMS (TYP.) STAINLESS STEEL STRAPS (TYP.) SPACING 5'MIN. CONDUIT SUPPORT DETAIL SCALE: NTS CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III ILLUMINATION DETAILS !Ma revisions 71 89 Reno CHD.1 scale 1'=2O' M.1. 9nlnni7 Fz L r LUMINAIRE SCHEDULE SHEET NO. LUMINAIRE NUMBER CIRCUIT/ SERVICE # LOCATION LT RT POLE/TYPE MOUNTING HEIGHT ARM LENGTH DISTRIBUTION TYPE ROLL (DEGREES) BASE TYPE FOUNDATION TYPE STATION OFFSET (FT) CH-1 A-6 A 50+27.92 32.51 X RS-21 30' 12' 3F, 60LED 350mA, 4000K -6.18 FIXED RS-25 A-5 A 51 68 50 25 50 X RS-21 30' 12' 3F, 60LED 350mA, 4000K -6.18 FIXED RS-25 A-4 A 52+89.35 26.07 26.95 25.94 X - X X RS-21 30' 12' 12' 12' 3F, 60LED 350mA, 4000K -6.18 FIXED RS-25 CH-2 A-3 A 54+16.77 RS-21 RS-21 30' 3F, 60LED 350mA, 4000K -6.18 FIXED RS-25 A-2 A 55+08.77 30' 3F, 60LED 350mA, 4000K -6.18 FIXED RS-25 A-1 A 56+10.80 26.41 X RS-21 30' 12' 3F, 60LED 350mA, 4000K -6.18 FIXED RS-25 B-1 B 57+04.87 23.59 X RS-21 30' 12' 3F, 60LED 350mA, 4000K -6.18 FIXED RS-25 CH-3 B-2 B 58+07.15 27.89 X RS-21 30' 12' 3F, 60LED 350mA, 4000K -6.18 FIXED RS-25 B-3 B 59+25.33 27.64 X RS-21 30' 12' 3F, 60LED 350mA, 4000K -6.18 FIXED RS-25 B-4 I B 60+45.42 27.64 X RS-21 30' 12' 3F, 60LED 350mA, 4000K -6.18 FIXED RS-25 B-5 B 61+87.92 25.69 X RS-21 30' 12' 3F, 60LED 350mA, 4000K -6.18 FIXED RS-25 CH-4 B-6 4 B-7 B 63+23.00 22.78 X X RS-21 RS-21 30' 30' 12' 3F, 60LED 350rA, 4000K -6.18 FIXED RS-25 I B 64+26.21 + 26.70 12' 3F, 60LED 350mA, 4000K -6.18 FIXED RS-25 B-8 B 65+37.28 26.43 X RS-21 30' 12' 3F, 60LED 350mA, 4000K -6.18 FIXED RS-25 B-9 B 66+33.38 13.97 X UNDER DECK WA N/A 3M, 60LED, 525mA, 4000K 0 BRIDGE MOUNT N/A CH-5 C-3 C 67+44.64 25.04 X RS-21 30' 12' 3F, 60LED 350mA, 4000K -2.07 FIXED RS-25 C-2 C 68+62.04 24.96 X RS-21 30' 12' 3F, 60LED 350mA, 4000K -2.07 FIXED RS-25 C-1 C 70+04.28 22.60 X RS-21 30' 12' 3F, 60LED 350mA, 4000K -2.07 FIXED RS-25 EX-1 C 71+18.93 26.22 X EXISTING EXISTING EXISTING 3F, 60LED 350mA, 4000K 0 EXISTING EXISTING 3F = TYPE 3 DISTRIBUTION FULL CUTOFF 3M = TYPE 3 DISTRIBUTION MEDIIUM CUTOFF WIRING SCHEDULE - SERVICE A RUN NO. ACONDUIT RACEWAY SIZE (INCHES)* RACEWAY CONDUIT TYPE WIRE NOTES Al 1 PVC 2-#10(A), 1-#10(GND) A2 2 PVC 2-#8(A), 1-#8(GND) A3 2 PVC 2-#8(A), 1-#8(GND) ROADWAY CROSSING A4 3 PVC 80 3-#8(A), 6-#8(GND) TO SERVICE WIRING SCHEDULE - SERVICE B RUN NO. ACONDUIT RACEWAY SIZE (INCHES)* RACEWAY CONDUIT TYPE WIRE NOTES B1 1 PVC 2- #10(B), 1-#10(GND1 B2 2 PVC 2-#8(B), 1-#8(GND) B3 1 RGS 2-#10(B), 1-#10(GND) TO LIGHT UNDER BR DGE B4 3 PVC 80 2-#8(B), 1-#8(GND) TO SERVICE WIRING SCHEDULE - SERVICE C RUN NO. ACONDUIT RACEWAY SIZE (INCHES)* RACEWAY CONDUIT TYPE WI RE NOTES C1 1 PVC 2-#10(B), 1-#10(GND) C2 2 PVC 2-#8(B), 1-#8(GND) C3 2 I PVC 2-#8(B), 1-#8(GND) FROM E-1 TO PWR J--BOX NEW SERVICE - BREAKER SCHEDULE SERVICE # WSDOT TYPE B SERVICE 120/240 V CIRCUIT DESCRIPTION BREAKER RATING CONTACTOR RATING VOLTAGE DEMAND LOAD (KVA) -- MAIN 200 A ILLUMINATION 15A 30A 240 0.60 B ILLUMINATION 15A 30A 240 0.90 C BLANK D BLANK E BLANK F SPARE 20A 240 G SPARE 20A 240 H INTERNAL XFORMER 15A 240 3.60 I PHOTOCELL 15A 120 J GFI OUTLET 20A 120 K STRIP HEATER 15A 120 BUS WORK SHALL BE RATED * AT 200 AMP MINIMUM, 18,000 AIC RATING CONNECTED LOAD 5.10 DEMAND LOAD 6.38 L r r- C L PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- by die dmired cs o, cbackal NGI PW-7 cs Katr CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III ILLUMINATION SCHEDULES 72 89 Reno CHD-2 f scale 1'=20' SIGN SPECIFICATION SCHEDULE SIGN NO. DWG NO. MUTCD (WSDOT) DESCRIPTION LOCATIONa SIGN SIZE CLEARANCE REMARKS SIGN CODE X (IN.) Y (IN.) Wb (FT.) V` (FT.) E1-01 CH-1 R1-1 STOP 50+26.5, RT REMOVE SIGN, POST AND ALL HARDWARE. E1-02 E1-03 E1-04 CH-1 (D9-13B MOD) 1640 AM EMERGENCY & CITY INFO 50+29, RT REMOVE SIGN, POST AND ALL HARDWARE. CH-1 (W8-1601) WATCH FOR ICE 50+40, RT REMOVE SIGN, POST AND ALL HARDWARE. CH-1 (R7-101) NO PARKING ANY TIME 50+41, LT REMOVE SIGN, POST AND ALL HARDWARE. E1-05 CH-1 (R7-101) NO PARKING ANY TIME 52+12, LT REMOVE SIGN, POST AND ALL HARDWARE. E1-06 CH-1 (R7-101) NO PARKING ANY TIME 51+30, RT REMOVE SIGN, POST AND ALL HARDWARE. E1-07 CH-1 (R7-101) (R7-101) NO PARKING ANY TIME 53+11, RT REMOVE SIGN, POST AND ALL HARDWARE. E2-01 CH-2 NO PARKING ANY TIME 54+17, LT REMOVE SIGN, POST AND ALL HARDWARE. E2-02 CH-2 (R7-101) NO PARKING ANY TIME 56+07, LT REMOVE SIGN, POST AND ALL HARDWARE. E2-03 CH-2 R1-1 STOP 56+40, LT REMOVE SIGN, POST AND ALL HARDWARE. E2-04 CH-2 R1-1 STOP 56+76, RT REMOVE SIGN, POST AND ALL HARDWARE. E2-05 CH-2 D-3 42 AV S 56+76, RT REMOVE SIGN AND ALL HARDWARE. E2-06 CH-2 D-3 S 158 ST 56+76, RT REMOVE SIGN AND ALL HARDWARE. E3-01 CH-3 (R7-101) NO PARKING ANY TIME 58+09,RT REMOVE SIGN, POST AND ALL HARDWARE. E3-02 CH-3 (R7-101) NO PARKING ANY TIME 58+34, LT REMOVE SIGN, POST AND ALL HARDWARE. E3-03 CH-3 (R7-101) NO PARKING ANY TIME 60+13, LT REMOVE SIGN, POST AND ALL HARDWARE. E3-04 CH-3 (R7-101) NO PARKING ANY TIME 60+21, RT REMOVE SIGN, POST AND ALL HARDWARE. E4-01 CH-4 (R7-101) NO PARKING ANY TIME 62+60, RT REMOVE SIGN, POST AND ALL HARDWARE. E4-02 CH-4 (R7-101) NO PARKING ANY TIME 64+88, RT REMOVE SIGN, POST AND ALL HARDWARE. E5-01 CH-5 (R7-101) NO PARKING ANY TIME 69+99, LT REMOVE SIGN, POST AND ALL HARDWARE. E5-02 CH-5 R2-1 SPEED LIMIT 30 70+94, LT REMOVE SIGN, POST AND ALL HARDWARE. E5-03 CH-5 (R7-101) NO PARKING ANY TIME 70+94, LT REMOVE SIGN, POST AND ALL HARDWARE. E5-04 CH-5 R5-10C MOD GILLIAM CREEK 69+96, RT 12 24 10 7 REMOVE POST, RELOCATE EXISTING SIGN AT APROXIMATE STATION 69+98 ON NEW POST . POST TO BE INSTALL PER CITY OF TUKWILASTD PLAN SHEET NO. RS-14. E5-05 CH-5 R5-10C MOD GILLIAM CREEK 69+96, RT 12 24 24 10 7 RELOCATE EXISTING SIGN AT APROXIMATE STATION 69+98 ON NEW POST. E5-06 CH-5 "FISH" SYMBOL; THIS STREAM IS IN YOUR CARE gg+g6, RT 36 RELOCATE EXISTING SIGN AT APROXIMATE STATION 69+98. MOUNT SIGN ABOVE SIGN E5-04. E5-07 CH-5 "FISH" SYMBOL; THIS STREAM IS IN YOUR CARE gg+g6, RT 24 36 RELOCATE EXISTING SIGN AT APROXIMATE STATION 69+98. MOUNT SIGN ABOVE SIGN E5-05. a NEW AND RELOCATED SIGN LOCATIONS TO BE VERIFIED IN FIELD BY ENGINEER PRIOR TO INSTALLATION. STATIONS ARE APPROXIMATEE TO THE CENTER OF POLE. b HORIZONTAL CLEARANCE IS MEASURED FROM FACE OF CURB OR EDGE OF TRAVEL WAY TO NEAR EDGE OF SIGN. VERTICAL CLEARANCE IS MEASURED FROM TOP OF FINISHED SIDEWALK GRADE TO THE BOTTOM EDGE OF SIGN. PUBLIC WORKS DEPT. -ENGI NEERI NG-STREETS-WATER-SEWER-PARKS-BUILDING- OY dale designed MHK SOT checked MW miens RJM void, field ME no CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III SIGN SCHEDULE no dale revisions r ow rT L 73 89 file ra CHD-3 scale 1'=20' ere cnnnnn SIGN SPECIFICATION SCHEDULE SIGN NO. DWG NO. MUTCD (WSDOT) DESCRIPTION LOCATIONa SIGN SIZE CLEARANCE REMARKS SIGN CODE X (IN.) Y (IN.) Wb (FT.) V` (FT.) P1-01 P1-02 CH-1 CH-1 R1-1 STOP 50+22.5, RT 30 30 7 2 7 7 INSTALL SIGN AND POST PER CITY OF TUKWILA STD PLAN SHEET NO. RS-14 (R7-101) NO PARKING ANY TIME 50+90, LT 12 18 INSTALL SIGN AND POST PER CITY OF TUKWILA STD PLAN SHEET NO. RS-14 P1-03 CH-1 R8-3a "NO PARKING SYMBOL" 52+90, LT 24 24 — 7 MOUNT SIGN ON NEW ILLUMINATION POLE A-4 P1-04 CH-1 (R7-101) NO PARKING ANY TIME 51+30, RT 12 18 9.5 7 INSTALL SIGN AND POST PER CITY OF TUKWILA STD PLAN SHEET NO. RS-14 P1-05 CH-1 (W8-1601) WATCH FOR ICE 50+69, RT 30 30 9 7 INSTALL SIGN AND POST PER CITY OF TUKWILA STD PLAN SHEET NO. RS-14 P1-06 CH-1 R2-1 SPEED LIMIT 30 51+30, RT 24 30 -- — MOUNT SIGN ON TOP OF SIGN P1-04 P2-01 P2-02 CH-2 R8-3a "NO PARKING SYMBOL" 55+09, LT 24 12 24 18 — 7 MOUNT SIGN ON NEW ILLUMINATION POLE A-2 CH-2 (R7-101) NO PARKING ANY TIME 55+00, RT 9 7 INSTALL SIGN AND POST PER CITY OF TUKWLA STD PLAN SHEET NO. RS-14 P2-03 CH-2 R9-3a "NO PEDESTRIAN CROSSING" SYMBOL 56+18, RT 18 18 2 7 INSTALL SIGN AND POST PER CITY OF TUKWILA STD PLAN SHEET NO. RS-14 P2-04 CH-2 R9-3a R1-1 "NO PEDESTRIAN CROSSING" SYMBOL 56+18, LT 18 18 2 7 INSTALL SIGN AND POST PER CITY OF TUKWLA STD PLAN SHEET NO. RS-14 P2-05 CH-2 STOP 56+33, LT 30 30 12 7 INSTALL SIGN AND POST PER CITY OF TUKWLA STD PLAN SHEET NO. RS-14 P2-06 CH-2 R1-1 STOP 56+80, RT 30 30 8 7 INSTALL SIGN AND POST PER CITY OF TUKWLA STD PLAN SHEET NO. RS-14 P2-07 CH-2 D-3 S 158TH ST 56+80, RT 12 12 46 _ MOUNT SIGN ON TOP OF SIGN P2-06. SEE CITY OF TUKWILA STD PLAN SHEET NO. RS-10 FOR STREET NAME SIGN MOUNTING. P2-08 CH-2 D-3 42ND AVE S 56+80, RT 50 -- — MOUNT SIGN ON TOP OF SIGN P2-07. SEE CITY OF TUKWLA STD PLAN SHEET NO. RS-10 FOR STREET NAME SIGN MOUNTING. P2-09 CH-2 (R7-101) NO PARKING ANY TIME 57+75, RT 12 18 9 7 INSTALL SIGN AND POST PER CITY OF TUKWILA STD PLAN SHEET NO. RS-14 P3-01 CH-3 R8-3a "NO PARKING SYMBOL" 58+07, LT 24 24 -- 7 MOUNT SIGN ON NEW ILLUMINATION POLE B-2 P3-02 CH-3 _ R8-3a "NO PARKING SYMBOL" 60+45, LT 24 24 -- 7 MOUNT SIGN ON NEW ILLUMINATION POLE B-4 P3-03 CH-3 (R7-101) NO PARKING ANY TIME 60+31, RT 12 18 9 7 INSTALL SIGN AND POST PER CITY OF TUKWILA STD PLAN SHEET NO. RS-14 P4-01 CH 4 (R7-101) NO PARKING ANY TIME 62+60, RT 12 18 9 7 INSTALL SIGN AND POST PER CITY OF TUKWLA STD PLAN SHEET NO. RS-14 P4-02 CH-4 R8-3a "NO PARKING SYMBOL" 63+23, LT 24 24 — 7 MOUNT SIGN ON NEW ILLUMINATION POLE B-6 P4-03 CH-4 (R7-101) NO PARKING ANY TIME 64+90, RT 12 18 9 7 INSTALL SIGN AND POST PER CITY OF TUKWLA STD PLAN SHEET NO. RS-14 _ P5-01 CH-5 R8-3a "NO PARKING SYMBOL" 70+04, LT 24 24 30 — 7 MOUNT SIGN ON NEW ILLUMINATION POLE C-1 P5-02 CH-5 R2-1 SPEED LIMIT 30 70+95, LT 24 _ 5.5 7 INSTALL SIGN AND POST PER CITY OF TUKWILA STD PLAN SHEET NO. RS-14 a NEW AND RELOCATED SIGN LOCATIONS TO BE VERIFIED IN FIELD BY ENGINEER PRIOR TO INSTALLATION. STATIONS ARE APPROXIMATE TO THE CENTER OF POLE. b HORIZONTAL CLEARANCE IS MEASURED FROM FACE OF CURB OR EDGE OF TRAVEL WAY TO NEAR EDGE OF SIGN. VERTICAL CLEARANCE IS MEASURED FROM TOP OF FINISHED SIDEWALK GRADE TO THE BOTTOM EDGE OF SIGN. r L r- L PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- by deb drown SOT MGJ PWN R!Y CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III SIGN SCHEDULE 74 89 HERO CHD-4 t stele 1".20' ELEVATION, FT. BEGIN TYPE 4, CHAIN LINK FENCE / - - W - - L2 BT X- —>3T xBTX- CURB AND GUTTER G G G C 42ND AVE S. W - - W - - W y - -f- W - - W y - - W - _- W - -.- y `/ - - W i � b BT X —3X— BTX— —X BT 420 BEGIN WALL RW-1 R ROW BLACK VINYL COATED CHAIN LINK FENCE, TYPE 4 PER WSDOT STD PLAN L-20.10-02 EXISTING UNDERGROUND SERVICE GAS LINE TO BE RELOCATED x----X�BT --BT - -BT `` END TYPE 4, `� CHAIN LINK FENCE \\ EXISTING UNDERGROUND SERVICE WATER LINE TO BE RELOCATED WALL PLAN RW-1 R WALL RW-1 R, ROCKERY WALL Flit 0 O O TOP OF FILL ritlaV�•.• _•_t—��- 12.06 TOP OF WALL 4114100111,11,......._tatisig4110J re �erikt rTOP OF FILL 410 • -- -allviNtvivr.„ BOTTOM OF FOUNDATION OF . TOP EXCAVATION OF BENCH EXISTING GROUND \____) 400 390 SEE DETAIL ` END WALL \• \ RW-1 R \`� UNDERDRAIN PIPE ` CONNECTED TO \ CATCH BASIN •\ \` Ell — 430 —420 —400 100+00 100+50 WALL ELEVATION RW-1 R PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- dab designed TK doled psi ins pm a n.uwro 390 101+00 0 5 10 SCALE IN FEET NOTES: 1. WALL ELEVATION SHOWN AT WALL CONTROL LINE, SEE DETAILS ON SHEET RT-5 AND RT-6. 2. FOR FINISHED GRADES OF ROADWAY, THE CONTRACTOR SHALL USE PAVING PLANS AND PROFILE DRAWINGS. 3. CONTRACTOR SHALL BURY ENDS OF WALL INTO NATURAL CONTOURS. 4. ROCK WALL SHALL BE CONSTRUCTED IN ACCORDANCE WITH THE SPECIFICATIONS. 5. WALL DETAILS AND ELEVATIONS MAY VARY FROM THOSE SHOWN ON THE CONTRACT DRAWINGS BASED ON ACTUAL ROCK SIZE AND DETAILS. 6. CONTRACTOR SHALL VERIFY LOCATIONS OF UNDERGROUND UTILITIES AND NOTIFY ENGINEER FOR ANY POTENTIAL CONFLICTS WITH WALL CONSTRUCTION. DAMAGE TO UNDER GROUND UTILITIES SHALL BE CONTRACTOR'S RESPONSIBILITY. LEGEND - G - - BT- EXISITNG UNDERGROUND GAS LINE (12" DIA.) TO REMAIN EXCEPT NOTED OTHERWISE EXISTING UNDERGROUND WATER LINE (8" DIA.) TO REMAIN EXCEPT NOTED OTHERWISE EXISTING UNDERGROUND TELEPHONE LINE (2-4" DIA.) TO REMAIN CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III ROCKERY WALL RW-1 R PLAN AND PROFILE no au revisions 75 89 file no RT-1 scale 1'=10' row 61N "n,o on1ne7 - --CIT x --x---x-x----x---x----x-- _CU---X---� C�� BEGIN TYPE 4, CHAIN LINK FENCE J - -BT- BEGIN WALL RW-1L - BT - G - - - - S - CO S 430 J O II pN Q +tDIJ + 0 z o W -m WALL RW-1 L, ROCKERY WALL CURB AND GUTTER SST S T 0< ROW BLACK VINYL COATED CHAIN LINK FENCE, TYPE 4 PER WSDOT STD PLAN L-20.10-02 END TYPE 4 CHAIN LINK FENCE END WALL RW-1 L BT - B T-- B 71- - 8 T-- B T-- B T-- B T-- B T-- 8 T-- BT BT BT - - BT - BT - - BT - - BT - 3 - G - - G G) - s S - - ST ST ST ST ST ST ST SI SI► 51's00_ — S — — S S — — 42ND AVE S. WALL PLAN RW-1 L S — — S — — I NOTES: 1. FOR ROCKERY WALL NOTES AND LEGEND, SEE SHEET RT-1. S S — — S -1—- S — 11101111111.1 0 5 SCALE IN FEET J O .6 J 420- ��� 00 ink, .11111KIMPICIPOW-411011114111111111RIMMIWIN tftw _����'+i���� ' EXISTING GROUND TOP OF WALL N INSPINWIMEW �o 410 = BOTTOM OF ` T_����_�e�_����• 1 FOUNDATION EXCAVATION DE AT EDGE OF FINICEMENTSHED RCONC. SIDEWALK ����==�_ ��,`,-- SEE DETAIL � 1 \ _t-e�� _ RT 5 / *��a,�. 400 - 390 10 10+00 WALL ELEVATION RW-1 L 11+00 430 r r- - - 420 - 410 L - - 400 - 390 11+60 PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- cleelseel NCB LSJ KJ Poi KJ Raid M14 nil CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III ROCKERY WALL RW-1 L PLAN AND PROFILE neuleinne 76 89 Reno RT-2 scale r=io' • l e ROW BEGIN TYPE 4, CHAIN LINK FENCE BEGIN WALL RW-2L I0 WALL RW-2L ROCKERY WALL BLACK VINYL COATED CHAIN LINK FENCE TYPE 4, PER WSDOT STD PLAN L-20.10.02 END TYPE 4 CHAIN LINK FENCE END WALL RW-2L ----------------- N rvvvyvvvvvvvvvvvvv ST ST f' ST CURB AND GUTTER - BT— —BT_ —BT--BT--BT--BT- W G — — G — G -- G — - — G --- — G — ST ST - — s s — s -- s--,s --I s- 42ND AVE S. 390 0 — O N J N 380 — 370 — 360 WALL PLAN RW-2L TOP OF WALL r EXISTING BOTTOM OF FOUNDATION EXCAVATION O N N +0 N GROUND cc SEE DETAIL FINISHED GRADE AT EDGE OF CEMENT CONC. SIDEWALK 390 — 380 — 370 20+00 WALL ELEVATION RW-2L 20+60 360 — is - ST ST ST s41-00 42ND AVE S. ST ST ST MINIM lwAs-- ST S' c -- G - -G -- WALL RW-3R ROCKERY WALL BEGIN WALL RW-3R _X— — BEGIN TYPE 4, CHAIN LINK FENCE BLACK VINYL COATED CHAIN LINK FENCE TYPE 4, PER WSDOT STD PLAN L-20.10.02 NOTES: 1. FOR ROCKERY WALL NOTES AND LEGEND, SEE SHEET RT-1. O M > O N 300— o� —oe3Q M _ "v00 LU — d C m 290 280 — 270 — CURB AND GUTTER x— —X x — 5HI HOGWIRE WALL PLAN RW-3R BOTTOM OF FOUNDATION EXCAVATION TOP OF WALL EXISTING GROUND SEE DETAIL II 0.1 tN. . 0 M O W yzb 0. O 1 M KO M 0 z Cr XW RT-5 FINISHED GRADE AT EDGE OF CEMENT CONC. SIDEWALK END WALL RW-3R EXISTING TREE TO BE REMOVED CUT END TYPE 4, CHAIN LINK FENCE 300+00 WALL ELEVATION RW-3R ROW 300 — 290 — - 280 - 270 300+60 PUBLIC WORKS DEPT. -EN G I N EERI N G-STR ESS-WATER-SEINER-PARKS-B U I LD I N G- &Wined mwn by MHK KRW MGI RJM KM dr field ev no dale c4,Zn441: CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III ROCKERY WALL RW-2L AND RW-3R PLAN AND PROFILE 77 89 , ea ro RT-3 no dale revisions scale r=m' dale 2/21/2017 #4 PLACE AS SHOWN W/2' MIN LAP (TYP) L#4@16" 4" MIN NOTES: 1. H NOT TO EXCEED 1'-3". 2. IF H<6", NO REBAR REQUIRED. INTEGRAL CURB WALL (2� NTS PV-5 -X- X- BP - - i — S WALL RW-3L CURB AND GUTTER 42ND 44VE S. — -FILL -----. 71+00 w — S — - 220 210 WALL PLAN RW-3L 1- J O1 O N N r+i r-J 0 0 �J — 230 .fir� O a O Cvw� TOP OF WALL EXISTING GROUND AT 4-FT WEST OF FACE OF WALL BOTTOM OF WALL FOOTING FINISHED GRADE AT BOTTOM FACE OF WALL 220 210 200 1 i 200 30+00 30+60 WALL ELEVATION RW-3L 21111111. PUBLIC WORKS DEPT. -ENGI NEERING-STREETS-WATER-SEWER-PARKS-BUILDING- bY dab EIVH daakad atttimo R.M Proi CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III INTEGRAL CURB WALL RW-3L PLAN. PROFILE AND DETAILS ,78• 89, Poe no RT-4 l sails P=70' 1 H io w x BOTTOM OF WALL RIGHT OF WAY LINE TOP OF ROCKERY WALL 9 1_ /// BOTTOM OF FOUNDATION J/ EXCAVATION 1.5:1 TEMPORARY SLOPE EXISITING GROUND APPROX. TOP OF BENCH 1'-0" /:« .\\ ;1 �P ---ti ►: T •: \\ • ,o .40 .• fiRl• • 10•• WALL CONTROL LINE GEOMEMBRANE LINER AT MAXIMUM WALL HEIGHT OF APPROX. 8FT, BASE ROCK SHALL BE FOUR MAN ROCK WITH 48 INCHES IN WIDTH DIMENSION. FOR OTHER ROCK SIZES AND DIMENSIONS, SEE SPECIFICATIONS. VARIES 4,-6„ FINISH GRADE BEHIND WALL LEVELING BASE ROCK WIDTH* EDGE OF CONCRETE SIDEWALK BLACK VINYL COATED CHAIN LINK FENCE , TYPE 4 PLACE FABRIC ON SIDEWALK SIDE OF POST 10"0 STD PIPE 2'-0" LONG AND CAPPED AT BOTTOM BASE ROCK, TYP. i BOTTOM OF FOUNDATION ROCK SHALL BE INCLINED NO STEEPER THAN 1V:10H rr� �► sx� v �n� ry a.s"`�••r a. ri :• r >�'i 4'.0 jx• �u1•.ti�Ip•y1:�*�.NIO:Iryy.�,,T 1��# !y�h� `• • COMPACT BACKFILL "ttle. �K—riI +�ii` •�� s�` i. / /// UNDISTURBED SOIL 4.410,46 ••may -� b �,�<.P♦+ I • �.�.rrrt"71��.} �?--t�!'4: �/ / CONSTRUCTION GEOTEXTILE 4' MAX PAD //\/ 2' y 4 \ FOR SEPARATION 1.5:1 TEMPORARY SLOPE SLOPE OR SHORE AS REQUIRED /\// \ FORR SAFETYG AND STABILITY DUTION OF ROCKERY WALL 12" MIN. THICKNESS OF BACKFILL FOR ROCK WALL - EXISTING UNDERGROUND TELEPHONE LINE (2-4" DIA.) TO REMAIN C}--------- EXISTING UNDERGROUND WATER LINE (8" DIA.) TO REMAIN GRAVEL BACKFILL FOR DRAIN. WRAP ALL AROUND WITH CONSTRUCTION GEOTEXTILE FOR UNDERGROUND DRAINAGE, MODERATE SURVIVABILITY, CLASS A. LAP GEOTEXTILE ON 1'-0" MIN. PERFORATED CORRUGATED POLYETHYLENE UNDERDRAIN PIPE 6" MIN. SLOPE PIPE TO DRAIN AND CONNECT TO CATCH BASIN AS SHOWN ON PLAN CONSTRUCTION GEOTEXTILE FOR SEPARATION TEMPORARY SHORING WALL AS REQUIRED TO PROTECT EXISTING UNDERGROUND UTILITIES ROCKERY WALL TYPICAL SECTION PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUI LDI NG- BOTTOM OF FOUNDATION EXCAVATION 1 2MIN � /&/// 1/\/ L CHINKING ROCK, TYP. FACING ROCK, TYP. FINISH GRADE AT BENCH OR TOP OF FILL EMBED AS REQUIRED TO ACHIEVE LATERAL COVER AT BOTTOM OF BASE ROCK BUT NOT LESS THAN 1-0" 6' LEVELING PAD QTYPICAL GRAVEL LEVELING PAD BENEATH BASE ROCK RT-1, RT-2 AND RT-3 EXISITING GROUND EXCAVATION BOTTOM OF FOUNDATION EXCAVATION 1.5:1 TEMPORARY SLOPE TEMPORARY SHORING WALL TYPICAL EXCAVATION SECTION CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III ROCKERY WALL RW-1 R SECTION & DETAILS revisiass ro• L rT L 79 89, No no RT-5 scale • 2hb 7 UNDISTURBED SOIL V ARKS 1'-0" WALL CONTROL LINE 4'-0" AT RW-1L & 2L BLACK VINYL COATED CHAIN LINK FENCE TYPE 4� PLACE FABRIC ON SIDEWALK I SIDE OF POST MATCH SURFACE DRAINAGE W/ EXISTING GROUND AT R]W \/\/>. \/) -� 2'-0" OF COMPACTED TILL CONSTRUCTION GEOTEXTILE FOR SEPARATION 12" MIN. THICKNESS OF BACKFILL FOR ROCK WALL SLOPE OR SHORE AS REQUIRED FOR SAFETY AND STABILITY DURING CONSTRUCTION OF ROCKERY WALL GRAVEL BACKFILL FOR DRAIN. WRAP ALL AROUND WITH CONSTRUCTION GEOTEXTILE FOR UNDERGROUND DRAINAGE, MODERATE SURVIVABILITY, CLASS A. LAP GEOTEXTILE ON 1'-0" MIN. PERFORATED CURRUGATED POLYTHYLENE UNDERDRAIN PIPE 6" MIN. SLOPE PIPE TO DRAIN AND CONNECT TO CATCH BASIN AS SHOWN ON PLAN CONSTRUCTION GEOTEXTILE FOR SEPARATION 6'-0" AT RW-3R 10" a STD PIPE 2'-0" LONG AND CAPPED AT BOTTOM BALLAST V-DITCH LEVELING PAD BASE ROCK WIDTH O w Q w WALL MAX. WALL HEIGHT 5.5 FT RW-2L 5 FT RW-3R 5.5 FT ROCKERY WALL TYPICAL SECTION TOP OF ROCKERY WALL z CEMENT CONC. SIDEWALK VBOTTOM OF WALL BOTTOM OF `. FOUNDATION '. EXCAVATION 1.5:1 TEMPORARY SLOPE .. GEOMEMBRANE LINER PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING. a LSJ chocked YYS ore do CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III ROCKERY WALL RW-1L, 2L & 3R SECTION & DETAILS 80 89 Re no RT-6 scale Q N 1 2 ACER 50+00 51+00 3 • • lh 52+00 53+00 �I- 42ND AVE S. w z J x 9 BT 9 RR 9 RI 7 PO PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUI LDI NG- M des. designed LCK CA LCK EYM held eL n. 12 BT 11 RR 9 RI 9 PO LANDSCAPE NOTES O ADJUST SHRUBS SO THAT NO SHRUB CENTER IS CLOSER THAN 3' TO SIDEWALK/DRIVEWAY RETURN, TYP. 02 TOPSOIL AND MULCH ONLY LEGEND SEED/SOD MIX B & TOPSOIL 0 SHRUB & BARK MULCH TREE & BARK MULCH HVF — TREE PROTECTION FENCING (HVF) ® ROCKERY WALL NUMBER OF PLANTS 32 BT PLANT SPECIES (SEE SHEET LA-6) NOTES: 1. SEE DEMOLITION AND EROSION CONTROL SHEETS FOR TREE REMOVALS. 2. FOR TREE PROTECTION DETAIL SEE SHEET LA-7 3. ALTERNATE SHRUBS IN GROUPS OF THREE IN SEQUENCE LISTED CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III LANDSCAPE PLAN MOM I I 0 20 40 SCALE IN FEET des revisions 81 89 file no LA-1 scale 1'=20. date 2/20/2017 111 MATCH LIN 54+00 44 MVP 55+00 42ND AVE S. 56+00 LL 57+00 3 BT 1 RR •X•X•X•X•) X•X•) •X•X•X•X•X•X•X•X•X•X•X•X•X•X•X•X•X•X•X•X•X•X•X•X•X•X•X•X•X•X•X•X•X•X•X•X'X•) '" 12 BT 9 RR 9 RI 9 PO PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- M asw Owes LCK CA LCK E'AH Wol 3 BT 3 RR 3 RI 1 PO \' 7 .JWE—. IiV.E _ _` 6 BT 6 RR 6 RI 3PO, LANDSCAPE NOTES ( ) ADJUST SHRUBS SO THAT NO SHRUB CENTER IS CLOSER THAN 3' TO SIDEWALK/DRIVEWAY RETURN, TYP. LEGEND SEED/SOD MIX B & TOPSOIL 0 SHRUB & BARK MULCH - HVF — TREE PROTECTION FENCING (HVF) ® ROCKERY WALL NUMBER OF PLANTS 32 BT \— PLANT SPECIES (SEE SHEET LA-6) NOTES: 0 1. SEE DEMOLITION AND EROSION °O CONTROL SHEETS FOR TREE rREMOVALS. 0 2. FOR TREE PROTECTION DETAIL SEE SHEET LA-7 3. ALTERNATE SHRUBS IN GROUPS OF THREE IN SEQUENCE LISTED CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III LANDSCAPE PLAN MEI 0 20 40 SCALE IN FEET 82 89 , fie no LA-2 L • no -n reWslons scale 1"=20' nm. snnnm7 LA-2 42ND 57+80 58+00 59+00 60+00 61+00 62+00 p �� 3 BT � 1�, p RR" "1 •x•x•x•xo �c`x•x•x•x•x•x•x•x•x•1 - 3 BT 3 RR 3 RI 1 PO 42ND AVE S. - 3 BT 3 RR 1 RI \-- 3 BT 1 RR PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- •x•x•x•x•x•x•x•x•x•x•x•x•x•x•x•x•x•x•x•x•x•x•x•x•x•x•x•x•x•x•x•xx•x•x•xx•x•x•xx•xux•x•x•x•xx•x•xx•x•xx•x•xx•x•x•x•x•x•xx•xx•) HYE — JlVF —JiYF — �IYF �zF1VE 18 BT 18 RR 18 RI 15 PO by LCK CA checked LCK -Y EVAI Pmi field *no cM2A4t 111F--- NV& — -HVF LANDSCAPE NOTES O ADJUST SHRUBS SO THAT NO SHRUB CENTER IS CLOSER THAN 3' TO SIDEWALK/DRIVEWAY RETURN, TYP. LEGEND 0 - HVF — 3T SEED/SOD MIX B & TOPSOIL SHRUB & BARK MULCH TREE PROTECTION FENCING (HVF) ROCKERY WALL NUMBER OF PLANTS PLANT SPECIES (SEE SHEET LA-6) NOTES: 1. SEE DEMOLITION AND EROSION CONTROL SHEETS FOR TREE Lo REMOVALS. z 2. FOR TREE PROTECTION DETAIL SEE ▪ SHEET LA-7 3 w z J 2 U ;Y7.1CYJ:YYl.Y '.'.:. HVF - I4VE _ :n� f 3. ALTERNATE SHRUBS IN GROUPS OF THREE IN SEQUENCE LISTED CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III LANDSCAPE PLAN MEI 0 20 40 SCALE IN FEET e:a re:isbns C83i 89J fie no LA-3 scale 1'=20' Amin 1/1A 17 r M J 2 F 2 gtlF--rt • ♦ ♦ • _AO) cP 1�52�c�i�ci5 l�c 'f>c�5�lc`5'f> N 63+00 _ _ — 64+00 — 65100 42ND AVE S. 66+00 J uF — it c4,1 l 9 BT 9 RR 6 RI 9 PO L 3 BT 3 RR 2 RI ..3 6 BT ' 6 RR 4 RI 3 PO --1 L 3 BT 2 RR 6 BT 3 RR 3 RI ♦ 3 PO ♦ • • • ♦ ♦ • • • ♦ • G LANDSCAPE NOTES ADJUST SHRUBS SO THAT NO SHRUB CENTER IS CLOSER THAN 3' TO SIDEWALK/DRIVEWAY RETURN, TYP. LEGEND SEED/SOD MIX B & TOPSOIL 0 SHRUB & BARK MULCH 2" DEPTH CRUSHED SURFACING TOP COURSE - HVF — TREE PROTECTION FENCING (HVF) NUMBER OF PLANTS 32 BT PLANT SPECIES (SEE SHEET LA-6) NOTES: 1. SEE DEMOLITION AND EROSION CONTROL SHEETS FOR TREE REMOVALS. 2. FOR TREE PROTECTION DETAIL SEE SHEET LA-7 3. ALTERNATE SHRUBS IN GROUPS OF THREE IN SEQUENCE LISTED J r♦. tuff-'*'Q MIND 0 20 40 SCALE IN FEET r PM r, C PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- dale &617.4 LCK drawm CA decked LCK aW -Y E Fa* cHzn4t CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III LANDSCAPE PLAN 84 89 Nano no 1A.4 scale r=so' 0 0 z N J x 67+00 ♦ • ♦ 42ND AVE S. 68+00 PUBLIC WORKS DEPT. 69+00 -ENGIN EERING-STREETS-WATER-SEWER-PARKS-BUI LDING- ZONE A ZONE B ZONE C • BOULDER WALL STREAM GRAVEL BUFFER LIMIT —' • PROVIDE • BOULDER • WALL AT TREE • DRIPLINE IF • NEEDED byy dra designee LCK CA dwasel LCK pW eq EVM Pm, ea field bK 70+00 c6,2m• 7 BU ER LIMIT ZONE D ZONE E ZONE F STREAM BED GRAVEL BOULDER WALL (TYP) rr. 0 73 m m LANDSCAPE NOTES 0 ADJUST SHRUBS SO THAT NO SHRUB CENTER IS CLOSER THAN 3' TO SIDEWALK/DRIVEWAY RETURN, TYP. Ivv`x cilifuLAA UST LEGEND SEED/SOD MIX 8 & TOPSOIL O SHRUB & BARK MULCH O TREE & BARK MULCH rrrrr�r REVEGETATION BUFFER AREA, TREES AND SHRUBS REVEGETATION BUFFER AREA, SHRUBS ONLY 2" DEPTH CRUSHED SURFACING TOP COURSE - HVF — TREE PROTECTION FENCING (HVF) RETAINING WALL NUMBER OF PLANTS 32 BT PLANT SPECIES (SEE SHEET LA-6) NOTES: 1. SEE DEMOLITION AND EROSION CONTROL SHEETS FOR TREE REMOVALS. 2. FOR TREE PROTECTION DETAIL SEE SHEET LA-7 3. ALTERNATE SHRUBS IN GROUPS OF THREE IN SEQUENCE LISTED • 4. SEE LA-6 FOR REVEGETATION PLANTING NOTES • ZONE QTY OF TREES QTY OF QTY OF SHRUBS SEED MIX A ZONE A 10 21 2,661 SF ZONE B / 15 420 SF ZONE C 6 12 708 SF ZONE D 13 49 3,053 SF ZONE E / 11 514 SF ZONE F 15 29 2,083 SF CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III LANDSCAPE PLAN 11101.-- 0 20 40 SCALE IN FEET no date revisions C 85 89 , file no LA-5 scale 1"=20' u • r ;=• L date 2/20/2017 PLANT SCHEDULE - GILLIAM CREEK REVEGETATION BUFFER AREA SYMBOL AREA QUANTITY BOTANICAL NAME COMMON NAME SIZE NOTES TREES 0.17 ACRE 5 SALIX LASIANDRA L PACIFIC WILLOW * #3 PLANT 12' O.C. TRIANGULAR SPACE 5 SALIX SCOULERIANA 2 SCOULER WILLOW* #3 PLANT 12' O.C. TRIANGULAR SPACE 5 BETULA PAPYRI FERA 3 PAPER BIRCH* #3 PLANT 12' O.C. TRIANGULAR SPACE 5 FRAXINUS LATIFOLIA OREGON ASH* #3 PLANT 12' O.C. TRIANGULAR SPACE 5 THUJA PLICATA WESTERN RED CEDAR ** #3 PLANT 12' O.C. TRIANGULAR SPACE 5 TSUGA HETEROPHYLLA WESTERN HEMLOCK** #3 PLANT 12' O.C. TRIANGULAR SPACE or 5 ALNUS RUBRA ? RED ALDER*** #3 PLANT 12' O.C. TRIANGULAR SPACE 5 ACER CIRCINATUM C` VINE MAPLE** #3 PLANT 12' O.C. TRIANGULAR SPACE 4 ACER MACROPHYLLUM / BIG -LEAF MAPLE** #3 PLANT 12' O.C. TRIANGULAR SPACE 4 PSEUDOTSUGA MENZIESII ill DOUGLAS FIR*** #3 PLANT 12' O.C. TRIANGULAR SPACE 4 PINUS CONTORTA j I SHORE PINE*** #3 PLANT 12' O.C. TRIANGULAR SPACE SHRUBS "i,IPr• 0.22ACRE 24 CORN US SERICEA 1 REDOSIER DOGWOOD* #3 PLANT GROUPS OF 3 AT 3' O.C. TRIANGULAR SPACE 24 SAMBUCUS RACEMOSA Z RED ELDERBERRY* #3 PLANT GROUPS OF 3 AT 3' O.C. TRIANGULAR SPACE 24 MYRICA CALIFORN ICA PACIFIC WAX MYRTLE** #3 PLANT GROUPS OF 3 AT 3' O.C. TRIANGULAR SPACE • ► ►.“.:A 23 RIBES SANGUINEUM 41 RED FLOWERING CURRENT*** #3 PLANT GROUPS OF 3 AT 3' O.C. TRIANGULAR SPACE 27 HOLODISCUS DISCOLOR 5 OCEANSPRAY*** #3 PLANT GROUPS OF 3 AT 3' O.C. TRIANGULAR SPACE 24 SYMPHORICARPOS ALBUS 4 SNOWBERRY*** #3 PLANT GROUPS OF 3 AT3' O.C. TRIANGULAR SPACE SEEDING 0.22 ACRE NATIVE GRASS MIX A SEE SPECIFICATION ir •_�_ AAlb A�� 0.22ACRE TOPSOILA 4" DEPTH 0.22ACRE FINE COMPOST 3" DEPTH NOTES: *TOLERATES WET TO SATURATED SOILS ** RECOMMEND MODERATELY WET TO DRY SOILS *** RECOMMEND DRY SOILS 1. THE ACTUAL PLACEMENT OF REVEGETATION TREES AND SHRUBS WILL BE AT THE DIRECTION OF THE ENGINEER AND IN CONSULTATION WITH THE CITY'S HABITAT MANAGER AND/OR URBAN ENVIRONMENTALIST. PLANT SCHEDULE - 42ND AVE S. PLANTING AND SEED/SOD AREAS SYMBOL AREA QUANTITY BOTANICAL NAME COMMON NAME SIZE NOTES SEEDING 0.55ACRE SEED/SOD MIX B SEE SPECIFICATIONS 0.55ACRE TOPSOILA 4" DEPTH IN SEED/SOD AREA SHRUBS BT 0000 102 BERBERUS THUNBERGII 'CRIMSON PYGMY' CRIMSON PYGMY DWARF BARBERRY #3 PLANT3'O.C. RR 0000 90 ROSA RUGOSA 'SHOWY PAVEMENT' SHOWY PAVEMENT ROSE #3 PLANT3'O.C. RI 0000 73 RHAPHIOLEPIS X DELACOURII 'GEORGIA PETITE' GEORGIA PETITE INDIAN HAWTHORN #3 PLANT3'O.C. PO 0000 60 PHYSOCARPUS OPULIFOLIUS 'PODARAS3' LEMONCANDYNINEBARK #3 PLANT3'O.C. ACER 00 2 ACER CIRCINATUM VINE MAPLE 1.5"CALIPER PLANT WHERE SHOWN 292 SY AMENDED TOPSOIL 12" DEPTH - CONTINUOUS TRENCH IN ROADWAY SHRUB PLANTING DETAIL 292 SY MULCH 3" DEPTH - CONTINUOUS IN BED IN ROADWAY SHRUB PLANTING DETAIL LANDSCAPE AND REVEGETATION NOTES: 1. SEE DEMOLITION AND EROSION CONTROL SHEETS FOR TREES TO REMAIN. 2. GRADING SHALL BEACCEPTED PRIOR TO PLANT INSTALLATION. 3. COORDINATE ACCESS AND CONSTRUCTION STAGING WITH ENGINEER. 4. DISCREPANCIES BETWEEN PLANS AND SITE CONDITIONS SHALL BE BROUGHT TO THE ATTENTION OF THE ENGINEER PRIOR TO PROCEEDING WITH LANDSCAPE WORK. 5. PLANTING IN WATER SATURATED SOILS ON AREAS WITH STANDING WATER WILL NOT BE ALLOWED. 6. ALL LANDSCAPE AND PLANT MATERIALS SHALL BE IN ACCORDANCE WITH THE AMERICAN STANDARDS FOR NURSERY STOCK, ANSI Z60.1 LATEST EDITION. 7. SUBMIT TO ENGINEER THREE MONTHS PRIOR TO LANDSCAPE AND REVEGETATION WORK, CONFIRMED PROCUREMENT ORDERS FOR ALL PLANT MATERIAL. PROVIDE THE QUANTITY, LOCATION PHONE NUMBER AND ADDRESS OF THE GROWERS. 8. ALL NURSERIES UNDER CONTRACT TO PROVIDE PLANT MATERIAL FOR THE PROJECT MUST HOLD P. RAMORUM CERTIFICATION IN ORDER TO GUARANTEE AGAINST RAMORUM BLIGHT AND DIEBACK. 9. PRIOR TO COMMENCEMENT OF LANDSCAPE AND REVEGETATION WORK, CONTRACTOR SHALL SUBMIT AND GAIN APPROVAL FOR A WATERING PROGRAM TO PROVIDE COMPLETE UNIFORM COVERAGE TO ALL NEW PLANTINGS. • 10. CONT$'ACT ENGINEER IN WRITING 3 WEEKS IN ADVANCE OF PLANT MATERIAL DELIVERY TO ESTABLISH ON -SITE INSPECTION. PLANT MATERIAL SHALL NOT BE INSTALLED UNTIL IT HAS BEEN APPROVED BY THE ENGINEER. ALL PLANT MATERIAL SHALL BE PLACED IN ONE ROADWAY AND ONE REVEGETATION LOCATION ON THE PROJECT SITE AND CONTRACTOR TO PROVIDE ENGINEER UNRESTRICTED ACCESS FOR VISUAL INSPECTION OF INDIVIDUAL PLANTS. PLANTS SHALL BE ORGANIZED IN BLOCKS BY SPECIES AND SUFFICIENTLY SPACED TO OBSERVE OVERALL GROWTH HABIT. TREES SHALL BE UNTIED AND BRANCHES SEPARATED. UNACCEPTABLE PLANT LMATERIAL ALL BE REOVFD FROM THE JOB SITE. 44 11. ALL AREAS DISTURBED BY THE CONSTRACTOR OUTSIDE THE AREAS SHOWN ON THE LANDSCAPE PLANS SHALL RECEIV SEED/SOD PPROVED BY THE ENGINEER. GILLIAM CREEK REVEGETATION AREA 1. THE ACTUAL PLACEMENT OF REVEGETATION TREES AND SHRUBS WILL BE AT THE DIRECTION OF THE CITY OF TUKWILA URBAN ENVIRONMENTAL SPECIALIST OR THEIR DESIGNEE. 2. TREES SHALL BE SPACED 16 FOOT ON CENTER IN AREAS SHOWN. 3. SHRUBS SHALL BE SPACED 4 TO 6 FOOT ON CENTER IN CLUSTERS OF 2-3 OF THE SAME SPECIES INTERSPERSED BETWEEN THE TREES. 4. TOPSOIL AND COMPOST SHALL BE BLENDED WITH EXISTING SOIL IN ALL AREAS OUTSIDE THE TREE AND SHRUB MULCH RINGS AND SEEDED WITH SEED MIX A. 5. CONTRACTOR MAY HYDROSEED OR HAND SEED, NO OVERSEEDING OF PLANT RINGS WILL BE PERMITTED. 6. CONTRACTOR RESPONSIBLE FOR PROVIDING ADEQUATE WATER FOR REVEGETATION AREA. DEAD OR DYING REVEGETATION PLANTS TO BE REPLACED AT A 2 TO 1 RATIO. 42ND AVENUE ROADWAY PLANTING 1. PLANT SHRUBS IN LINEAR GROUPS OF 3 OF THE SAME SPECIES BEGINNING FROM EVERY DRIVEWAY -END. THE REPEATING SEQUENCE IS: 3 BT, 3 RR, 3 RI, 3 PO AND THE SEQUENCE IS SOUTH TO NORTH. THE SEQUENCE STARTS OVER AT EVERY NEW DRIVEWAY -END. 2. ROADWAY PLANTING OF SHRUBS SHALL BE IN A CONTINUOUS AMENDED TOPSOIL TRENCH. 3. MULCH SHALL BE CONTINUOUS THROUGHOUT THE PLANT BED. REVEGETATION MAINTENANCE 1. PERFORM MAINTENANCE OPERATIONS DURING MAINTENANCE PERIOD, (SEE SPECIFICATIONS) TO INCLUDE: - WATERING: KEEP SURFACE MOIST. - WASHOUTS: REPAIR BY FILLING WITH TOPSOIL, FERTILIZING, SEEDING, AND COMPOST MULCHING. - MULCH: REPLACE WHEREVER AND WHENEVER WASHED OUT OR BLOWN AWAY. - WEEDING: MONITOR AND CONTROL NOXIOUS WEEDS AND INVASIVE SPECIES. - RESEED: UNSATISFACTORY AREAS OR PORTIONS THEREOF IMMEDIATELY IF A SATISFACTORY STAND HAS NOT BEEN PRODUCED. - RESEED/REPLANT: DURING NEXT PLANTING SEASON IF SCHEDULED END OF MAINTENANCE PERIOD FALLS AFTER SEPTEMBER 15TH. - RESEED/REPLANT ENTIRE AREA IF SATISFACTORY STAND HEALTHY AND VIABLE PLANTS DO NOT DEVELOP BY END OF CONTRACT. r rT L PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- LCK CA checked LCK PM r9 ENM P)* field c1,2tiw CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III LANDSCAPE NOTES AND PLANT SCHEDULE 86 89, fien" LA-6 l Ko9 a 1"=20' \)Ituk k.4"" MULCH RING, TYP. 1. SPACE TREES AT 12' O.C. TRIANGULAR SPACING 2. SPACE SHRUBS IN GROUPS OF 3 AT 3' O.C. 3. PLANT TREES/SHRUBS IN CLUSTERS OF 3 OF THE SAME SPECIES TREE AND SHRUB TRIANGULAR SPACING NTS 3" DEPTH BARK MULCH OR WOOD CHIP MULCH IN TREE/SHRUB RING. FEATHER TO BASE OF PLANT mw . ww xio cn° 0 0 3 TIMES THE ROOT SPREAD MIN. 5' DIAMETER SET ROOT CROWN 1" ABOVE FINISH GRADE MOUND SOIL TO FORM WATERING WELL AT OUTER EDGE OF PLANTING PIT AMENDED TOPSOIL AND COMPOST, BLEND TO A DEPTH OF 2" INTO EXISTING SUB SOIL BACKFILL WITH AMENDED TOPSOIL EXISTING SOIL BREAK UP ROOTBALL OF CONTAINER PLANTS, PRUNE CIRCLING ROOTS REVEGETATION SHRUB AND TREE PLANTING DETAIL NTS PUBLIC WORKS DEPT. -ENGIN EERI NG-STREETS-WATER-SEWER-PARKS-BUI LDING- L�� 8.5" X 11" SIGN LAMINATED IN PLASTIC SPACED EVERY 50' ALONG THE FENCE. by ROADWAY SHRUB PLANTING DETAIL NTS CROWN DRIP LINE OR OTHER LIMIT OF TREE PROTECTION AREA BASED ON ARBORIST RECOMMENDATIONS. Th TREE PROTECTION FENCING (HVF) NOTES: 1 2 131 4 5 6 ITI 8 SET ROOT CROWN 1" ABOVE FINISHED GRADE. WATER BASIN. PLANT PIT 12" DEPTH CONTINUOUS AMENDED TOPSOIL. WATER AND TAMP TO REMOVE AIR POCKETS. ROADWAY PLANTER TOPSOIL TRENCH CONTINUOUS. SET ROOTBALL ON UNDISTURBED, NATIVE SOIL OR FIRMLY PACKED SOIL. FERTILIZER. SEE SPECIFICATIONS. WEED BARRIER FABRIC SECURED WITH ANCHORS. 3" MULCH, PULL MULCH AWAY FROM CROWN OF SHRUB. 1. SEE SPECIFICATIONS FOR ADDITIONAL TREE PROTECTION REQUIREMENTS. 2. IF THERE IS NO EXISTING IRRIGATION, SEE SPECIFICATIONS FOR WATERING REQUIREMENTS. 3. NO PRUNING SHALL BE PERFORMED EXCEPT BY APPROVED ARBORIST. 4. NO EQUIPMENT SHALL OPERATE INSIDE THE PROTECTIVE FENCING INCLUDING DURING FENCE INSTALLATION AND REMOVAL. 5. SEE SITE PREPARATION PLAN FOR ANY MODIFICATIONS WITH THE TREE PROTECTION AREA. TREE PROTECTION FENCE: HIGH DENSITY POLYETHYLENE FENCING WITH 3.5" X 1.5" OPENINGS; COLOR -ORANGE. STEEL) POSTS INSTALLED AT 8' O.C. 2" X 6' STEEL POSTS OR APPROVED EQUAL. 5" THICK LAYER OF MULCH. MAINTAIN EXISTING GRADE WITHIN THE TREE PROTECTION FENCE UNLESS OTHERWISE INDICATED ON THE PLANS. NTS dab designed LCK CA °MAW LCK onfl EVM voids fide *no c612n4t CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III LANDSCAPE DETAILS revisions 87 89 file n0 Lk-] scale 1"=20' data 2/202017 r r Air STAGE 3 42ND AVE S. L_._s . •� LIGHTRAIL OVERPASS -\ RR51R OVERPASS , \k.. GILLIAM CREEK STAGE 2 STAGE 1 STAGE 4 GENERAL CONSTRUCTION STAGING NOTES: 1. CONSTRUCTION STAGING SHOWN IS INTENDED TO DEMONSTRATE A POSSIBLE GENERAL COURSE OF ACTION. THE CONTRACTOR SHOULD REVIEW AND, IF DESIRED, DEVELOP ALTERNATIVES SUITABLE TO THEIR OPERATIONS. ALTERNATIVE STAGING, IF DEVELOPED BY THE CONTRACTOR SHALL BE SUBMITTED TO THE ENGINEER FOR APPROVAL. ACCEPTANCE OF ALTERNATIVE STAGING CONCEPTS SHALL BE AT THE SOLE DISCRETION OF THE ENGINEER AND THE CONTRACTOR SHALL NOT PRESUME THAT ALTERNATIVES WILL BE ACCEPTED. 2. CONTRACTOR SHALL SUBMIT A DETAILED STAGING PLAN, AND RECEIVE APPROVAL FROM THE ENGINEER, BEFORE STARTING WORK. 3. ALL EXISTING AND FUTURE IMPROVEMENTS, INCLUDING UTILITIES, ARE NOT SHOWN ON THE DRAWING. FOR ADDITIONAL INFORMATION, SEE APPLICABLE CONTRACT DRAWINGS. THIS PLAN DEPICTS GENERAL STAGING ONLY. 4. CONSTRUCTION ACTIVITES NOT SPECIFICALLY SEQUENCED SHALL BE CONSTRUCTED IN A MANNER TO MINIMIZE PUBLIC IMPACT. 5. DETAILED TRAFFIC CONTROL PLANS CONFORMING TO THE MUTCD AND WSDOT STANDARD PLANS SHALL BE SUBMITTED BY THE CONTRACTOR FOR APPROVAL BY THE ENGINEER AT LEAST (14) DAYS DAYS PRIOR TO THE START OF ANY CONSTRUCTION STAGE. 6. CONTRACTOR SHALL MAINTAIN EXISTING DRAINAGE SYSTEM OR CONSTRUCT TEMPORARY SYSTEM UNTIL FINAL DRAINAGE FACILITIES ARE CONSTRUCTED AND OPERATIONAL. 7. TRAFFIC SAFETY DRUMS SHALL BE SPACED AT 35 FT. MAXIMUM INTERVALS ON CENTERS, FLASHERS SHALL BE MOUNTED ON ALTERNATING DRUMS. ADDITIONAL DRUMS AT CLOSER SPACING WILL BE REQUIRED AT INTERSECTIONS AND DRIVEWAYS TO SAFELY CHANNELIZE TRAFFIC. 8. ALLOW LANE CLOSURES AS SPECIFIED IN SECTION 1-10, TEMPORARY TRAFFIC CONTROL IN THE SPECIAL PROVISIONS. 9. ALL CONSTRUCTION SIGNING, STRIPING AND CHANNELIZATION DEVICES SHALL BE PER MUTCD AND WSDOT STANDARD PLANS. 10. SIDE STREETS SHALL REMAIN OPEN AT ALL TIMES UNLESS AN ACCEPTABLE DETOUR PLAN IS SUBMITTED AND APPROVED. 11. MINIMUM LANE WIDTH IS 11 FT. 12. STEADY BURNING WARNING LIGHTS (TYPE C MUTCD) SHALL BE USED TO MARK CHANNELIZATION DEVICES AT NIGHT. 13. CHANNELIZATION DEVICES ARE TO BE EXTENDED TO A POINT WHERE THEY ARE VISIBLE TO APPROACHING TRAFFIC. 14. PHASE CONSTRUCTION TO MAINTAIN DRIVEWAY ACCESS TO RESIDENTS AT ALL TIMES. PROVIDE STEEL PLATE OVER CONSTRUCTION AREA AS TEMPORARY DRIVEWAY. 15. ABRUPT PAVEMENT EDGES OF 0.20 FT. (2.5 IN.) OR GREATER TRANSVERSE TO THE ROADWAY SHALL BE WEDGED ACCORDING TO THE REQUIREMENTS OF SECTION 1-07, LEGAL RELATIONS AND RESPONSIBILITIES TO THE PUBLIC. 16. REMOVE TEMPORARY STRIPING WHEN COMPLETE. STAGE 1 GENERAL NOTES: THE FOLLOWING WORK IS ANTICIPATED FOR STAGE 1, FROM STA 68+50 TO SOUTHCENTER BOULEVARD: CITY CONTRACTOR SHALL: 1. INSTALL GENERAL CONSTRUCTION SIGNS AND TRAFFIC CONTROL DEVICE PER MUTCD AND WSDOT STANDARD PLAN FOR 42ND AVE S FULL CLOSURE AT THE CULVERT. LOCAL ACCESS TRAFFIC ONLY BETWEEN S 158TH STREET TO SOUTHCENTER BOULEVARD. 2. CUT AND CAP KING COUNTY WD #125 WATER MAIN, CONSTRUCT TEMPORARY EROSION CONTROL MEASURES, COMPLETE CLEARING AND GRUBBING, SAWCUT AND REMOVE THE PAVEMENT AND BEGIN ROADWAY EXCAVATION TO EXPOSE THE TOP OF THE UTILITIES (SEWER, GAS, POWER, COMM) STAGE 1 GENERAL NOTES: CONTINUED WORK BY OTHERS: 3. PSE'S SUBCONTRACTOR WILL INSTALL A SUPPORT SYSTEM, HANG THE GAS MAIN(S) ONTO THE SUPPORT SYSTEM, AND THEN EXPOSE THE REST OF THE GAS LINES. 4. SCL'S SUBCONTRACTOR WILL INSTALL A SECOND SUPPORT SYSTEM, HANG THE POWER AND COMMUNICATION DUCTBANKS ONTO THE SUPPORT SYSTEM, AND THEN EXPOSE THE REST OF THE POWER AND COMMUNICATION DUCTBANKS CITY CONTRACTOR SHALL: 5. INSTALL THE SEWER BYPASS SYSTEM FOR VALLEY VIEW SEWER USING PSE'S INSTALLED SUPPORT SYSTEM, AND REMOVE THE EXISTING SEWER PIPE. 6. CONSTRUCT A WATER BYPASS FOR GILLIAM CREEK 7. COMPLETE THE EXCAVATION FROM UNDERNEATH THE EXPOSED UTILITIES TO CULVERT FOOTING, CONSTRUCT THE CULVERT AND STREAM CHANNEL, AND BACKFILL UP TO THE UTILITIES. SEE CULVERT CONSTRUCTION SEQUENCE FOR MORE DETAIL. 8. INSTALL THE NEW WATER MAIN AND SEWER, AND REMOVE SEWER BYPASS FROM PSE SUPPORT SYSTEM WORK BY OTHERS: 9. SCL'S CONTRACTOR WILL COME BACK TO REMOVE THE SUPPORT SYSTEM FROM THE DUCTBANK, INSPECT AND REPAIR THE POWER AND COMMUNICATION DUCTBANK AS NECESSARY. 10. PSE'S SUBCONTRACTOR WILL COME IN TO REMOVE THE GAS MAIN SUPPORT SYSTEM. CITY CONTRACTOR SHALL: 11. THE CITY CONTRACTOR WILL COMPLETE THE BACKFILL AND SURFACE RESTORATION. 0 100 200 SCALE IN FEET STAGE 2 GENERAL NOTES: THE FOLLOWING WORK IS ANTICIPATED FOR STAGE 2, FROM S 158TH STREET TO STA 68+50: 1. CONSTRUCT CURB, GUTTER AND SIDEWALK ON THE EAST SIDE. 2. UTILITY POLES SET BY OTHERS 3. 42ND AVE S PARTIAL CLOSURE - LOCAL ACCESS TRAFFIC ONLY BETWEEN S 158TH STREET TO SOUTHCENTER BOULEVARD. 4. INSTALL CONSTRUCT LOCAL ACCESS ONLY SIGNS. 5. INSTALL GENERAL CONSTRUCTION SIGNS AND TRAFFIC CONTROL DEVICE PER MUTCD AND WSDOT STANDARD PLAN. 6. CONSTRUCT TEMPORARY EROSION CONTROL MEASURES, COMPLETE CLEARING AND GRUBBING, BEGIN DEMOLITION, CUT, PAVEMENT REMOVAL. 7. CONSTRUCT UTILITIES, STORM DRAINAGE AND RETAINING WALLS. INSTALL CURB, GUTTER AND SIDEWALK AND PAVING (EXCEPT FINAL LIFT). 8. CONSTRUCT STORMWATER DETENTION POND. STAGE 3 GENERAL NOTES: THE FOLLOWING WORK IS ANTICIPATED FOR STAGE 3, FROM S 160TH STREET TO S 158TH STREET: 1. INSTALL PROJECT SIGNS. 2. INSTALL GENERAL CONSTRUCTION SIGNS AND TRAFFIC CONTROL DEVICES PER MUTCD AND WSDOT STANDARD PLAN. 3. CONSTRUCT TEMPORARY EROSION CONTROL MEASURES, COMPLETE CLEARING AND GRUBBING. BEGIN DEMOLITION, CUT, PAVEMENT REMOVAL. 4. CONSTRUCT UTILITIES, STORM DRAINAGE, CURB AND GUTTER, SIDEWALK, RETAINING WALLS. RAISE ROADWAY GRADE, PAVING (EXCEPT FINAL LIFT). STAGE 4 GENERAL NOTES: 1. FINAL PAVEMENT FOR THE PROJECT CORRIDOR. 2. PERMANENT PAVEMENT MARKING AND SIGNING. i PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- by de. designed checkei wel sae ma* cN2,nk CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III CONSTRUCTION STAGING AND DETOUR PLAN 88 89 hleno CS-1 scale S 154 ST S 158 ST S 160 ST S 152 ST IPCMSI S 158 ST WORK ZONE S 158 ST u) N LLI N >Cn S 160 ST LLI v en LIJ S163STf ( S16 DETOUR PLAN NOT TO SCALE S 164 ST ROAD CLOSURE AT CULVERT CONSTRUCTION STAGING NOTES: 1. CLOSE 42ND AVE TO TRAFFIC BETWEEN158TH AND SOUTHCENTER BLVD. ACCESS TO ALL PROPERTIES MUST BE MAINTAINED. 2. INSTALL TEMPORARY EROSION CONTROL MEASURES WITHIN THE WORK ZONE. 3. INSTALL TEMPORARY WATER BYPASS SYSTEM ON GILLIAM CREEK TO DIVERT THE WATER AROUND THE WORK ZONE. 4. INSTALL TEMPORARY CULVERT SHORING SYSTEM. 5. EXCAVATE TO THE BOTTOM OF THE STREAMBED. EXISTING BOULDERS MAY BE SET ASIDE TO A STAGING AREA FOR PROPOSED PLACEMENT. 6. REROUTE OR PROTECT AND SUPPORT VARIOUS EXISTING UTILITIES. THIS WORK WILL BE DONE IN COORDINATION WITH EACH UTILITY INCLUDING PSE GAS, HIGHLINE WATER, VALLEY VUE SEWER, SCL POWER, COMCAST AND CENTURYLINK COMMUNICATIONS. 7. CONSTRUCT THE CONCRETE FOOTING OF THE CULVERT. 8. INSTALL THE STRUCTURAL PLATE CULVERT AND CONSTRUCT CONCRETE COLLAR 9. INSTALL THE STREAMBED GRAVEL AND FORM THE STREAM CHANNEL. 10. BACKFILL AROUND AND ON TOP OF THE CULVERT WITH APPROVED GRANULAR MATERIAL. 11. INSTALL UTILITIES IN THEIR FINAL CONFIGURATION AND REMOVE TEMPORARY SUPPORTS.THIS WORK WILL BE DONE IN COORDINATION WITH EACH UTILITY AGENCY. 12. RESTORE 42ND AVE S. FOR TRAFFIC USAGE. 13. PLANT TREES AND VEGETATION. 14. REINTRODUCE WATER BACK TO THE STREAM. PUBLIC WORKS DEPT. -ENGINEERING-STREETS-WATER-SEWER-PARKS-BUILDING- by ems &Opal E chRokorl MG) free cN2row CITY OF TUKWILA 40th - 42nd AVENUE SOUTH - PHASE III CONSTRUCTION STAGING AND DETOUR PLAN hula 89 89 file no CS-2 scale