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Permit PL17-0005 - TUKWILA SCHOOL DISTRICT - TRANSPORTATION BUILDING USE PERMITS / CONDITIONAL USE
TUKWILA SCHOOL TRANSPORTATION BUILDING 2384200010 Associated Files: PL17-0005, 117-0007 This File: 117-0006 DESIGN REVIEW/PUBLIC HEARING City of Tukwila Allan Ekberg, Mayor Department of Community Development- Jack Pace, Director May 2, 2017 NOTICE OF DECISION CONDITIONAL USE PERMIT & DESIGN REVIEW TO: Lisa Klein, AHBL Inc., Applicant Judith Berry, Tukwila School District King County Department of Assessments Brian Kennedy, Resident 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 Numbers: L17-0006 Design Review Public Hearing L17-0007 Conditional Use Permit Applicant: Lisa Klein, AHBL Inc. Type of Permit Applied for: Type 4 Design Review and Conditional Use Permit Project Description: Design Review and Conditional Use Permit approval for development of a 2,515 sq. ft. administration and break building for Tukwila School District bus drivers. Location: 12801 E Marginal Way (APN 2384200010) Associated Files: D16-0061 Development Permit COMPREHENSIVE PLAN DESIGNATION: Neighborhood Commercial Center (NCC) ZONE DESIGNATION: Neighborhood Commercial Center (NCC) II. DECISION Decision on Conditional Use Permit: The City Board of Architectural Review has determined that the Conditional Use Permit does comply with applicable City and state code requirements and has approved that application based on the findings and conclusions contained in the staff report, subject to any conditions which are set forth in the Decision. Decision on Design Review: The City Board of Architectural Review has determined that the Design Review application does comply with applicable City and state code requirements and has approved that application based on the findings and conclusions contained in the staff report, subject to any conditions which are set forth in the Decision. Additionally, the Board of Architectural Review has approved waiver from the interior parking lot landscaping requirements per TMC 18.70.090(B). III. YOUR APPEAL RIGHTS The Decision on this Permit Application is a Type 4 decision pursuant to Tukwila Municipal Code 18.104.010. Other land use applications related to this project may still be pending. One administrative appeal to the Hearing Examiner of the Board of Architectural Review Decision is permitted. No administrative appeal of a DNS or an EIS is permitted. If an MDNS was issued, any person wishing to challenge either the conditions which were imposed by the MDNS decision or the failure of the Department to impose additional conditions in the MDNS must raise such issues as part of the appeal. IV. PROCEDURES AND TIME FOR APPEALING In order to appeal the Board of Architectural Review decision on the Permit Application, a written notice of appeal must be filed with the Department of Community Development within 14 calendar days of the issuance of this Decision, that is by May 16, 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. 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. 2 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 The Hearing Examiner appeal shall be conducted as a closed record hearing based on the testimony and documentary evidence presented at the open record hearing conducted by the Board of Architectural Review. 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 36.70C. 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. 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 100, Tukwila, Washington 98188 from Monday through Friday between 8:30 a.m. and 5:00 p.m. The project planner is Max Baker, who may be contacted at 206-431-3683 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. Max Baker, Assistant Planner Department of Community Development City of Tukwila 3 City of Tukwila Allan Ekberg, Mayor Department of Community Development - Jack Pace, Director Staff Report Administrative Design Review and Conditional Use Permit Tukwila School District Transportation Building Prepared April 18, 2017 FILE NUMBER: L17-0006 (Design Review), L17-0007 (CUP) ASSOICATED PERMITS: D17-0061 APPLICANT: Lisa Klein, AHBL Inc. OWNER: Tukwila School District REQUEST: Type 2 Administrative Design Review approval for construction of a new 2,515 sq. ft. bus driver rest facility for Tukwila School District LOCATION: 12801 E Marginal Way, Tukwila, WA 98168 COMPREHENSIVE PLAN DESIGNATION: Neighborhood Commercial Center ZONING DISTRICT: Neighborhood Commercial Center ENVIRONMENTAL REVIEW: Exempt PUBLIC NOTICE: A combined notice of application for design review and conditional use was sent to neighboring residents and businesses on February 27, 2017. A notice was posted onsite on February 27, 2017. The notice of public hearing was published in the Seattle Times on April 13th, 2017. PUBLIC COMMENT: Two comments received: one letter, one phone call. STAFF: Max Baker, Assistant Planner ATTACHMENTS: A. Site and Civil Plan Set B. Color Elevations C. Project Description from Applicant D. Public Comment E. Materials Board (presented at the hearing) Findings Vicinity/Site Description Project Description The project seeks to construct a new 2,515 square foot building for daily administrative use by the bus drivers of the Tukwila School District. The building will include a conference/training room, break room, two offices, storage room, mechanical closet, janitorial closet, lobby, and restrooms. The proposed new building will be one story and, with site improvements including landscaping upgrades and restriping of the parking spaces. Existing Development The existing site contains a parking lot that is used exclusively for parking of the Tukwila School District's buses and the bus drivers' personal vehicles. A small storage shed and portable toilets, which are proposed to be removed, are the only structures that exist on site. A chain Zink fence encompasses the parking lot, with two vehicle gates along S 128th St. providing access into the site. View of existing parking lot from northwest corner of lot (S 128t' St.) 2 View of existing parking lot from northeast corner of lot (E Marginal Way and S 128`h St.) View of existing parking lot from southeast corner of lot (E Marginal Way) 3 Surrounding Land Use The project site is bounded to the east by E Marginal Way South and by S 128th Street to the north. Blue Nile Trucking, a truck terminal facility, is located to the north. Directly to the south are single family homes zoned LDR and a vacant lot, zoned NCC. To the west are single family homes. To the southeast at E Marginal Way and S 130`h St. are mixed -use commercial buildings containing a small market, cafe, and retail spaces. 4 Topography & Vegetation The parcel is mostly level. The site contains perimeter landscaping. Access The site has two vehicular access points, both along S 128th Street. A 5-foot wide sidewalk is located adjacent to both E Marginal Way S and S 128th St. at the back of the curb. Pedestrian access into the bus parking lot is currently through either of the two vehicular access points. PUBLIC COMMENTS Two public comments were received, one in writing from Brian Kennedy on March 13, 2017 and another as a phone call from Virginia Whitzel on March 2, 2017. Their comment and the applicant's responses are as follows: Response to Brian Kennedy Letter dated March 13, 2017 The comment letter raised the following concerns: 1. Upkeep of landscaping — Mr. Kennedy commented that many shrubs have been removed. He would prefer indigenous plants that attract birds. a. Applicant response: Ten -foot wide perimeter landscape buffers will be provided, which will improve the aesthetic appearance, buffering and screening of the use to surrounding residences and the right-of-way. City code requires plant materials in the buffer to consist of the following: i. Trees: A mix of deciduous and evergreen trees. ii. One shrub per 7 linear feet to achieve a continuous vertical layer in 3 years. iii. Groundcover of varying heights, colors and textures to achieve 100% coverage within 3 years. The proposed landscaping will be verified to ensure the plantings are done according to City standards, including the species used. We are planting native plants, in particular Serviceberry, which is a native plant species that's popular with birds. We also have two different huckleberry and Oregon grape plants which produce fruit that attract birds. 2. Parking — He would prefer no street parking. a. Applicant response: Employee parking will be accommodated onsite. The project is providing 25 vehicular parking spaces for bus driver use. There are approximately 18 bus drivers that will be using the new transportation building. 3. Noise and Traffic — Both have consistently increased in the neighborhood over the years and have impacted the livability of the neighborhood. a. Applicant response: The proposal is to provide a new indoor office facility for the transportation staff to improve their daily work life by offering them a place to take a break, use the restroom, eat lunch, etc. There is no additional capacity (i.e. more traffic) that will result from the proposal. The building itself provides offices, restrooms and breakroom facilities none of which will generate any new noise to the neighborhood as these are typical office -type activities that occur indoors. The school buses do cause some noise, however they have been using this site for several years and primarily run during school start and end times. They are required to follow strict protocols to limit idling when not in use. The District has recently purchased new buses that will be replacing the older buses. They will be quieter and reduce emissions. The proposed transportation building is located within the Neighborhood Commercial Center (NCC) zoning district, and is considered a "Conditional use." This means that this use is only approved subject to conditions and mitigation measures that ensure compatibility with surrounding uses. 5 The proposal will undergo a thorough review regarding its compatibility with the surrounding neighborhood. It is also subject to the design review process, where site design, building design, and landscaping will be evaluated to ensure that it is appropriate for the Neighborhood Commercial Zone and that it is appropriately buffered from nearby residential uses. Response to Virginia Whitzel phone call dated March 2, 2017 The phone call raised the following concerns: 1. Ms. Whitzel wondered why there wasn't a proposal to site it at the corner of E Marginal Way and S 128th Street. By the conclusion of the call Ms. Whitzel was satisfied that placement in the back corner was appropriate. a. Applicant Response: The building is located in the southwest corner of the property for the several reasons. The primary use of the site is to store school buses. The maneuvering and parking space required for the buses is of priority in site design, all the while minimizing the amount of site redesign required for the addition of a small building. Furthermore, the location in the southwest corner allows the building to setback into the property for greater "eyes" on the bus lot. REPORT ORGANIZATION This staff report is divided into two sections. The first section covers the Conditional Use Permit and the second section covers the Design Review decision. Staff's conclusions and recommendations follow each section. The Board of Architectural Review is asked to make a decision on both applications. TMC 18.64 addresses conditional use criteria and TMC 18.60 address design review criteria. SECTION ONE -CONDITIONAL USE PERMIT DECISION CRITERIA- CONDITIONAL USE PERMIT The proposed project must comply with criteria detailed in TMC 18.64.050, (1-5), concerning Conditional Use Permits. Applicant's response to conditional use criteria is attached to this staff report as Attachment C. Staff makes the following findings under the city's Conditional Use Permit criteria (TMC 18.64.050): (1) The proposed use will not be materially detrimental to the public welfare or injurious to the property or improvements in the vicinity of the proposed use or in the district in which the subject property is situated. This project complies. The project will not expand the bus parking on site. The proposed building will provide a rest area for Tukwila School District bus drivers between shifts. This structure will eliminate the need for a temporary shed and portable toilet on site, in turn moving activities currently visible to neighborhood to within the proposed building. (2) The proposed use shall meet or exceed the performance standards that are required in the district it will occupy. The Development Standards for uses in the Neighborhood Commercial Center (NCC) zone include a maximum height of 35 feet and the following setbacks: o Front Setback: • 6' 6 o Sides Setback, if any portion of the yard is within 50 feet of LDR, MDR, HDR: • Ratio of 1.5:1 setback (for every 1.5 feet of building height, setback 1 foot from property line) with a minimum of 10 feet and a maximum of 20 feet o Rear Setback, if any portion of the yard is within 50 feet of LDR, MDR, HDR Setbacks: • Ratio of 1.5:1 setback (for every 1.5 ft. of bldg. ht., setback 1 ft. from property line) with a 10 foot min. and 20 foot max. The maximum height of the proposed building is approximately 20.5 feet. The proposed project meets all setback and landscaping requirements of the NCC zone. (3) The proposed development shall be compatible generally with the surrounding land uses in terms of traffic and pedestrian circulation, building and site design. This project complies. See Design Review criteria below for more information. (4) The proposed use shall be in keeping with the goals and policies of the Comprehensive Land Use Policy Plan This project complies with the following Comprehensive Plan policies: • 1.6.1 Enhance the pedestrian environment with street improvements that include curbs, sidewalks or trails, and regularly -spaced street trees. • 1.7.3 Use design guidelines to encourage compatible location and configuration of buildings, parking, recreation areas and pedestrian facilities. • 1.7.4 Incorporate substantial landscaping both along street frontages and within parking lots in new development and redevelopment when the buildings are not brought up to the back of sidewalk. • 1.7.8 Require that sites have adequate lighting and are designed using crime -reduction principles to increase safety. • 4.13.4 Ensure that required replacement trees at maturity will have equivalent or larger canopies than the removed tree(s), except where existing or future infrastructure and/or public or private utilities impede the planting of large trees. • 7.6.2 In neighborhood commercial developments, harmoniously reflect the scale and architectural details of surrounding residential structures, and encourage non - motorized access. • 7.6.3 Employ appropriate design elements to blend in with the character of the residential neighborhood. • 7.6.7 Ensure appropriate structural transitions between commercial and residential zones. 5) All measures have been taken to minimize the possible adverse impacts, which the proposed use may have on the area in which it is located. The mass, scale and design of the building is consistent with the surrounding residential areas. Additional infill landscaping along the perimeter is proposed. Topography change and landscaping help screen the building from the adjoining single family homes along the south and west of the property. 7 CONCLUSIONS- CONDITIONAL USE PERMIT 1. The proposed use, a bus parking lot with support structure, will fulfill a need for the Tukwila School District and should have a minimal impact upon the surrounding neighborhood. There is no expansion of the bus parking lot proposed, and no increase in visitors or employees is projected. The proposed transportation building will provide necessary facilities for the school's bus drivers, replacing portable toilets and a dilapidated shed on the site in the process. 2. No increase in parking is proposed, only a reconfiguration of existing parking stalls to accommodate the proposed building. 3. The proposed use will be compatible with the surrounding land uses. The small sized one-story structure and its location in the back corner of the property should keep visual impacts on surrounding residential properties to a minimum, while the improved perimeter landscaping will provide an improved visual buffer of the parking area along the adjacent streets. 4. The proposed use will not conflict with the goals and policies of the Comprehensive Plan. As an accessory use to the Tukwila School District, the bus parking lot and proposed transportation building would provide a necessary function for the City and its schools. RECOMMENDATIONS -CONDITIONAL USE PERMIT Staff recommends approval of the Conditional Use Permit. SECTION TWO -DESIGN REVIEW This project is subject to Board of Architectural (BAR) design approval under Tukwila Municipal Code (TMC) Section 18.60.030. In the following discussion the Board of Architectural Review criterion is shown below in bold and italics, followed by staff's comments. For the applicant's response to the criteria, see Attachment C. Design Review Criteria TMC 18.60.050.B Commercial and Light Industrial The following criteria shall be considered in all cases, except that multi -family and hotel or motel developments shall use the multi -family, hotel and motel design review criteria: 1. RELATIONSHIP OF STRUCTURE TO SITE. a. The site should be planned to accomplish a desirable transition with streetscape and to provide for adequate landscaping and pedestrian movement. Proposed changes to the existing pedestrian and vehicular access will work to enhance employee safety by providing great visibility to bus drivers and creating demarcated walkways for those traveling on foot within the parking lot. While locating the office building closer to the corner of E Marginal Way S and S 128th St was initially considered, it was found to not be necessary for a structure of this scale and use type. The applicant provided the following response: "The building is located in the southwest corner of the property for the several reasons. The primary use of the site is to store school buses. The maneuvering and parking space required for the buses is of priority in site design, all the while minimizing the amount of site redesign required for the addition of a small building. Furthermore, the location in the southwest corner allows the building to setback into the 8 property for greater 'eyes' on the bus lot." Due to the continued primary use of this parcel as a school bus parking lot, the planning department has found this building siting to be appropriate. b. Parking and service areas should be located, designed and screened to moderate the visual impact of large paved areas. The existing site is entirely paved with perimeter landscaping. See discussion under landscaping section for landscaping requirements. The service areas are located to minimize visibility and are proposed to be screened by enclosures. c. The height and scale of each building should be considered in relation to the site. The scale of the building is in keeping with the surrounding residential areas. The height of the buildings is 20.5 feet and a sloping roof is proposed. 2. RELATIONSHIP OF STRUCTURE AND SITE TO ADJOINING AREA. a. Harmony of texture, lines and masses is encouraged. The proposed building is approximately 2,500 square feet. The mass and scale of the building is consistent with the surrounding residential areas. The proposed siding is residential in character. The texture and lines of the proposed materials are harmonious. b. Appropriate landscape transition to adjoining properties should be provided. The existing landscaping along the perimeter is preserved to the maximum extent possible. Additional infill landscaping along the perimeter is proposed to meet the TMC 18.52 requirements. Topography change and landscaping help screen the building from the adjoining single family homes along the south and west of the property. c. Public buildings and structures should be consistent with the established neighborhood character. The proposed building will be used as an office/administrative building for the Tukwila School District. The building itself has been designed to blend in within the surrounding residential neighborhood. The one story structure is an appropriate massing in the context of the surrounding single-family neighborhood, where many homes are single story homes. The proposed color scheme was selected by the owner from several initial schemes. The darker frame and trim are meant to relate to common neighborhood commercial developments such as coffee houses. d. Compatibility of vehicular pedestrian circulation patterns and loading facilities in terms of safety, efficiency and convenience should be encouraged. While it would usually be recommended to locate commercial structure within the Neighborhood Commercial Center district closer to the street's edge, the applicant has proposed the building to be located within the southwest corner of the lot to facilitate the continued function of bus parking and maneuvering on the site. This will improve traffic flow through the site while at the same time reducing the visual impact of the structure on the surrounding neighborhood. e. Compatibility of on -site vehicular circulation with street circulation should be encouraged. Painted pedestrian pathways have been provided between the S 128th St. and the transportation building to provide designated walkways for employees, enhancing pedestrian safety at the site. The applicant has placed the entryway to the building in the most central location for the staff, between the bus parking and the staff parking. 9 3. LANDSCAPING AND SITE TREATMENT a. Where existing topographic patterns contribute to beauty and utility of a development, they should be recognized, preserved and enhanced. No changes to site topography are proposed. b. Grades of walks, parking spaces, terraces and other paved areas should promote safety, and provide an inviting and stable appearance. Painted pedestrian pathways have been provided between the S 128th St. and the transportation building to provide designated walkways for employees, enhancing pedestrian safety at the site. Main entry and back door both have access ramps. Doorways at Rooms 107 and 113 have a grade that is intended to rise up to the door threshold with the grade sloping away from the building. These two rooms have dropped floor slabs to provide for cart access as required for the building program. c. Landscape treatment should enhance architectural features, strengthen vistas and important axis, and provide shade. The project meets the design criteria. City code requires plant materials in the buffer to consist of the following: • Trees: A mix of deciduous and evergreen trees. • One shrub per 7 linear feet to achieve a continuous vertical layer in 3 years. • Groundcover will be of varying heights, colors and textures to achieve 100% coverage within 3 years. d. In locations where plants will be susceptible to injury by pedestrian or motor traffic, mitigating steps should be taken. The proposed landscaping will be verified to ensure the plantings are done according to City standards, including the species used. Existing trees will be protected during construction. e. Where building sites limit planting, the placement of trees or shrubs in paved areas is encouraged. Per TMC 18.70.090 (B), design review triggers compliance with the City's adopted landscaping requirements. Additionally, the Board of Architectural Review may modify the standards when in their judgement strict compliance with the landscaping standards of the code would create substantial practical difficulties. Due to the continued primary use of this parcel as a school bus parking lot, staff recommends waiver from interior parking lot landscaping requirements due to the need for continued access/movement of buses through the site. f. Screening of service yards and other places that tend to be unsightly should be accomplished by use of walls, fencing, planting or combination. Additional infill landscaping along the perimeter is proposed. Topography change and landscaping help screen the site from the adjoining single family homes along the south and west of the property and from E Marginal Way and S 128th St. g. In areas where general planting will not prosper, other materials such as fences, walls and pavings of wood, brick, stone or gravel may be used. No such features are proposed. h. Exterior lighting, when used, should enhance the building design and the adjoining landscape. Lighting standards and fixtures should be of a design and size compatible with the building and adjacent area. Lighting should be shielded, and restrained in design. Excessive brightness and brilliant colors should be avoided. Six (6) 400 watt light poles currently exist on the site. One of these existing poles is proposed to be relocated to the southern edge of the site to provide lighting for the employee parking area adjacent to the building. Five (5) LED bulbs are proposed for the north elevation of the building. There is adequate lighting throughout the 10 parking lot and around pedestrian areas into the building. Lights will be shielded downwards and automated to reduce impact to surrounding properties. 4. BUILDING DESIGN. a. Architectural style is not restricted; evaluation of a project should be based on quality of its design and relationship to its surroundings. While freedom was given to the applicant to design a building that would meet the functional needs of the Tukwila School District employees on site, City staff also worked to ensure that the building's design would be appropriate for the largely residential character of the surrounding neighborhood. b. Buildings should be to appropriate scale and in harmony with permanent neighboring developments. The building has been designed to blend in within the surrounding residential neighborhood. The one story structure is an appropriate massing in the context of the surrounding single-family neighborhood, where many homes are single story homes. c. Building components such as windows, doors, eaves, and parapets should have good proportions and relationship to one another. Building components and ancillary parts shall be consistent with anticipated life of the structure. Windows will utilize same materials throughout and will be only one of two sizes along front elevation. Doors, railings, trim, and gutters will be of similar materials and colors. d. Colors should be harmonious, with bright or brilliant colors used only for accent. The proposed color scheme was selected by the owner from several initial schemes. The darker frame and trim are meant to relate to common neighborhood commercial developments such as coffee houses. e. Mechanical equipment or other utility hardware on roof, ground or buildings should be screened from view. Trash and mechanical units will be enclosed. f. Exterior lighting should be part of the architectural concept. Fixtures, standards, and all exposed accessories should be harmonious with building design. Site lighting will consist of existing light poles and new exterior lighting attached to building. Exterior lighting will be WST LED lights with minimalist, trapezoidal shape that will be in harmony with the overall building design. Lights will be shielded downwards and automated to reduce impact to surrounding properties. g. Monotony of design in single or multiple building projects should be avoided. Variety of detail, form and siting should be used to provide visual interest. Materials are varied between roof, trim, and siding, adding some visual interest. The slanted roofline pitch provides a modern look to an otherwise simple building 5. MISCELLANEOUS STRUCTURES AND STREET FURNITURE. a. Miscellaneous structures and street furniture should be designed to be part of the architectural concept of design and landscape. Materials should be compatible with buildings, scale should be appropriate, colors should be in harmony with buildings and surroundings, and proportions should be to scale. The mechanical enclosure will abut the main structure, and wall finishes will match. The dumpster and recycling enclosure is proposed to be integral colored concrete masonry units (CMU) with a top cap. No street furniture is proposed. 11 b. Lighting in connection with miscellaneous structures and street furniture should meet the guidelines applicable to site, landscape and buildings. No lights for accessory features are proposed. Conclusions Structure height, length, and setback requirements are in compliance with the Neighborhood Commercial Center standards. Landscaping is in compliance with all Tukwila Municipal Code standards. The City's Urban Environmentalist has reviewed and approved proposed plant species, siting and materials to ensure appropriate spacing. The perimeter landscaping follows a coherent design concept, which will soften the impact of the bus parking area on surrounding properties and create a more pedestrian -friendly atmosphere along the adjacent streets. Mechanical equipment is adequately screened and the screening material is in harmony with the overall design scheme of the building. No significant changes are proposed to the existing parking, lighting, or vehicular and pedestrian access. Those changes that are proposed will work to improve pedestrian and vehicular circulation within the site itself and provide enhanced lighting for employees onsite. The renderings demonstrate a cohesive style and quality design with ample modulation, articulation, and attention to detail. The color palette features neutral shades of tan with darker accent colors. Materials are varied between roof, trim, and siding, adding some visual interest. The slanted roofline pitch provides a modern look to an otherwise simple building, while keeping the visual impact on surrounding properties to a minimum. Recommendations Staff recommends the approval of the Design Review application and approval of modification from interior parking lot landscaping requirements of TMC 18.52. Informational Items 1. Any signage that is visible from the right-of-way or adjacent properties shall be reviewed through submittal of a separate sign permit application. 2. Irrigation plans shall be reviewed through submittal of a separate building permit application. 3. A Traffic Concurrency Test Fee and Transportation Impact Fee do not apply to this project as there is no Change of Use. 4. The building address will be required to be posted on the north face of the building. 12 Obi of J uuua Department Of Community Development AFFIDAVIT OF DISTRIBUTION I, Max Baker , HEREBY DECLARE THAT: Notice of Application X Notice of Decision Notice of Public Hearing Notice of Public Meeting Mitigated Determination of Non - Significance 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/attached on this 2nd day of May, 2017 Project Name: TSD Transportation Building Project Number: PL17-0005 Associated File Number (/s): 17-0006, L17-0007 Mailin re uested b : /r ,j4r�_F2 Mailer's signature: HTTPS://TUKWILAWA-MY.SHAREPOINT.COM/PERSONAL/MAX_BAKER_TUKWILAWA_GOV/DOCUMENTS/2. E + L - FILES/L17-0006 TSD TRANSPORTATION BUILDING/L17-0006 AFFIDAVIT OF DISTRIBUTION.DOCX Jaclyn Adams From: Maxwell Baker Sent: Tuesday, May 02, 2017 11:34 AM To: Christie.Most@kingcounty.gov; ECY RE SEPA REGISTER; Lisa Klein; graften@comcast.net; berryj@tukwila.wednet.edu; Alexander Clark; Meredith Sessions Subject: Notice Of Decision TSD Transportation Building Attachments: L17-0006 & L17-0007 TSD Transportation Building Notice of Decision.pdf Hello, Attached is the Notice of Decision citing an approval for a Conditional Use Permit and Design Review for the Tukwila School District's Transportation Building project at 12801 E Marginal Way. Please contact Project Planner Max Baker with any questions at Max.Baker@tukwilawa.gov or by phone at 206-431-3683. Thank you. Maxwell Baker I Assistant Planner Department of Community Development I City of Tukwila 6300 Southcenter Blvd, Suite 100 I Tukwila, WA 98188 Max.Baker@Tukwilawa.gov 1206.431.3683 Tukwila: The City of opportunity, the community of choice. i rolluda architect architecture planning interior design • 105 South Main Street, Suite 323 • Seattle, Washington 98104 • 206.624.4222 (p) • 206.624.4226 (f) info@rolludaarchitects.com (e) • www.rolludaarchitects.com (w) Transmittal Date: April 11, 2017 Sent: Attached O Facsimile 0 Under separate cover Action O Urgent attention ® As indicated O Sign and return Sending ❑ Prints ❑ Submittal ® Other ❑ Telephone 0 Memorandum Total pages including cover: ( ) copies For Your ® Information and use 0 Review and comment ® As requested to: re: Max Baker Assistant Planner City of Tukwila Department of Community Development Reply to the City of Tukwila initial planner comments for the Tukwila School District Transportation Building. PDFs email this afternoon — Let us know ifyou have any questions. Document Type Copies Date Pages Description Status Drawings 10 4-10-2017 13 CUP Submittal Drawings Color Rendering 1 4-10-2017 1 Color Rendered Elevations 24x36 Color Rendering 10 4-10-2017 Color Rendered Elevations 11x17 Memo Reply to Public comments Memo 4-11-2017 Reply to Planner comments Thank you Alexander Clark Sent Via: 0 Mail/USPS 0 Courier CI RA Delivered 0 Express Mail 0 Other rolluda architects 105 South Main Street I Suite 323 ( Seattle, WA 98104 206.624.4222 p 1206.624.4226 f www.rolludaarchitects.com Memorandum Date: 4-11-2017 To: City of Tukwila Department of From Alexander Clark AIA Community Development Rolluda Architects Inc Minnie Dhaliwal - Planning Supervisor - Max Baker - Assistant Planner Project: Tukwila School District — Project #: 331-16-01 Transportation Building Re: Reply to Initial City of Tukwila Planner Comments for the Transportation Building. The following are City of Tukwila initial planner review comments fro the TSD Transportation Building. Attachments: Lithonia WST LED Wallpack cut sheet. LANDSCAPING Comment Contact Task/Response The front (and second front) perimeter landscaping is Type I. From TMC 18.52.020.B, Type I must be AHBL Landscape Buffers and labels updated to meet code. 10ft and should provide a light visual separation between uses and zoning districts, screen parking areas, and allow views to building entryways and signage. Type I requires plant materials to consist of the following: • Trees: A mix of deciduous and evergreen trees • One shrub per 7 linear feet to achieve a continuous vertical layer in 3 years. • Groundcover of varying heights, colors and textures to achieve 100% coverage within 3 years. Add at least three small -stature deciduous trees to AHBL Landscape (3) 6' multistem Amelanchier X `Autumn the E. Marginal side to meet code. Small -stature Brillance' added along E. Marginal Way trees (OK, as it is under the power lines) should be buffer planting. between 15 and 20 feet apart. Additionally, as they The rear landscaping has a 10 ft Type II are adjacent to a residential zone, the side and rear buffer. E Marginal Way has a Type 1 landscaping have a 10ft perimeter Type II buffer as it more than 50 feet from LDR \\ROLLUDA-FP\data\@ACTIVE PROJECTS\ Education (K-12)\Tukwila SD - Transportation Bldg\03 Design\Permitting\TBD Planning dept Design Comments\TBD Planner CUP Comments reply 4-11-2017\TSD Transportation Bldg ReplyTB0 Planner Cmnts RAI 4-11-2017.doc rolluda architects 105 South Main Street I Suite 323 I Seattle, WA 98104 206.624.4222 p 1206.624.4226 f www.rolludaarchitects.com requirement if the yard is 50ft from said residential. zone. 87 shrubs are identified (ferns not counting as shrubs), of which 51 are Taxus. The code states that no more than 50% of the required can be the same if over 24 (TMC 18,52.060.A.5b). Applicant should diversify shrubs as well as groundcover as well to meet code requirement for having "varying heights, colors and textures". AHBL Landscape New total shrubs: 113 Total Taxus: 51 % Taxus: 45% Show new and existing irrigation and where they will tie into each. Will the applicant plan to install new irrigation around the retained shrubs? AHBL Landscape New and existing boundary shown in POC Diagram, 1/TL2.1. New irrigation shall be installed around retained shrubs. Note on TL3.0: "Contractor shall hand trench irrigation ditches when within 20 feet or within a delineated tree protection area, of existing trees to remain. Avoid cutting any roots over 3"-4" in diameter within the tree protection area." Per 18.52.070.A.3 soil shall be prepared, at the very minimum to a depth of 12 inches. How will the applicant plan to amend the soil where they are doing interplanting? Only adding topsoil to a pit is not sufficient or good practice. Will mulch, fertilizer, etc. be applied around new plants? AHBL Landscape Note added to TL1.0 "Amend, till, and prep soil in buffer zones but outside root zones to 12" depth, per BMP T5.13 "Post -Construction Soil Quality And Depth" from the Washington Department of Ecology Stormwater Management Manual for Western Washington." Mulch and fertilizer shall be added per specification section 329300. How will the applicant deal with the Japanese knotweed eradication. All weeds should be removed prior to planting, but knotweed is a particular concern. There should be details describing methods. AHBL Landscape Note added to TL1.0 "Remove and control English Ivy, Blackberries, Japanese Knotweed and any other noxious weeds per instructions at WWW.KingCounty.Gov/Weeds." All the blackberry and plant shrubs as an understory should be removed along side yards. AHBL Landscape Weed removal areas noted on TL1.0 Attached is an improved tree protection detail. Applicant should change out the existing one, as there can be no storage, ground disturbance, or driving within the drip line of the protected trees. AHBL Civil Updated tree protection detail is shown on Sheet TC2.1. Relocated to 5/TL2.0 as requested by planners to consolidate set. \\ROLLUDA-FP\data\@ACTIVE PROJECTS Education (K-12)\Tukwila SD - Transportation Bldg\03 Design \Permitting\TBD Planning dept Design Comments\TBD Planner CUP Comments reply 4.11-2017\TSD Transportation Bldg ReplyTBD Planner Cmnts RAI 4-11-2017.doc rolluda architects 105 South Main Street I Suite 323 I Seattle, WA 98104 206.624.4222 p 1206.624.4226 f www.rolludaarchitects.com SITE PLAN Comment Contact Task/Response Applicant will need to provide an exterior site lighting plan detailing existing and new lighting. Exterior lighting should be provided along front of new building and near pedestrian pathways through site to provide safe travel for employees. Rolluda/Tres West Electrical See attached site lighting calculation plan. There is adequate lighting throughout parking lot and around pedestrian areas into the building as shown. New parking stalls will need to be constructed to code standards: 8.5' x 19' (TMC 18.56.040) How will trash area be accessed? Current site plans show adjacent bulb out to the north of garbage enclosure and new parking to the east, providing little access for dump truck. AHBL Civil/Rolluda New parking stalls are designed to exceed the code minimum of 8.5'x19'. New stall lengths and widths are shown for clarity. New westerly parking stalls are moved east to improve access to dumpster enclosure. Will recycling space be provided in addition to garbage? AHBL Civil/Rolluda Yes — see revised site plan with enclosure including recycling. Trash and mechanical enclosures should be designed with similar materials and colors scheme. Proposed trash enclosure is showing a block construction that is markedly different from the overall design theme of the main building. Rolluda The mechanical enclosure is abutting the new structure and wall finishes match the new structure. The dumpster and recycling enclosure is proposed to be integral colored CMU with top cap, this material has been selected for its durability over time and attractive qualities. Area immediately east of building shows a repaved space with pedestrian walkway and new parking stalls. What will remainder of space be used for? A vegetated bulbout currently exists within this area, could this retained or replaced in the process? Rolluda Parking and striping for pedestrian walk way has been adjusted and consolidated to create more access to the dumpster enclosure and more maneuvering room for the buses. See updated site plan. \\ROLLUDA-FP\data\@ACTIVE PROJECTS\ Education (K-12)\Tukwila SD - Transportation Bldg\03 Design\Permitting\TBD Planning dept Design Comments\TBD Planner CUP Comments reply 4-11-2017\TSD Transportation Bldg ReplyTBD Planner Cmnts RAI 4-11.2017.doc rolluda architects 105 South Main Street I Suite 323 I Seattle, WA 98104 206.624.4222 p 1206.624.4226 f www.rolludaarchitects.com ELEVATIONS/DESIGN Comment Contact Task/Response Provided design board shows design elements Rolluda 1. Building height has been that are significantly different from the proposal raised to accommodate provided with the development permit. Update internal equipment. See design board to show accurate representation, Departures include: • Heights of building. Development updated elevations. 2. Window now matches permit submittal. See updated rendering. permit shows a top building height 3. Materials board and elevation of 66.89', while the design elevations and rendering board shows an elevation of 62.98'. include call outs and Renderings in development permit descriptions from finish show a taller north building face, with schedule. more space between windows and roof 4. Finish and color symbols line. are updated. • Window spacing is different between two renderings. Design board shows various spacing between windows, while development permit shows more uniform spacing. • Page A6.01 shows materials and color lists for building siding, trim, roofing etc. that are not included with design board. Please provide examples of these materials and colors with updated design board. Examples from proposal include, but are not limited to the following: o R-1 Pipe and Tube Metal Railing o EF-5 Fiber Cement Trim, 3/4" Smooth o EF-3 Soffit Board o Concrete Stem Wall • Colors are inconsistent from labels included in development permit to those shown on design board. Provide specs on exterior lighting attached to Rolluda See attached cut sheets for the exterior building. wall mounted fixtures. \\ROLLUDA-FP\data\@ACTIVE PROJECTS\ Education (K-12)\Tukwila SD - Transportation Bldg\03 Design\Permitting\TBD Planning dept Design Comments\TBD Planner CUP Comments reply 4-11-2017\TSD Transportation Bldg RepIyTBD Planner Cmnts RAI 4-11-2017.doc rcolluda architects 105 South Main Street I Suite 323 I Seattle, WA 98104 206.624.4222 p 1206.624.4226 f www.rolludaarchitects.com Indicate how access will be provided for doors Rolluda 1. Main entry and back door that are not served by ramps. Side storage and have been adjusted and mechanical room doors don't show a landing or both have ramps. See stairway access to doorways. revised plans. 2. Man doors at the Rooms 107 and 113 the grade is intended to rise up to the door threshold with the grade sloping away from the building. These two rooms have dropped floor slabs to provide for cart access as required for the building program. RECOMMENDATIONS FROM PLANNING Comment Contact Task/Response In keeping with the character of the neighborhood, suggest inverting/altering colors of trim and siding to provide lighter trim elements with relatively darker siding. Rolluda 1. The current scheme was selected by the Owner from several schemes. The darker frame and trim relate to common neighborhood commercial developments such as coffee houses. 2. For discussion purposes we have provided another option with lighter trim. Uniform window style should be used across north face of building. Rolluda Current approach provides for a more uniform window size and spacing. An improved main entryway that is more oriented toward employee parking area, or rationale on why the proposed entry is necessary, should be provided. Rolluda We have placed the entry in the most central location for the staff, between the bus parking and the staff parking. The building is located to facilitate the continued function of bus parking and maneuvering. Suggest relocating trash enclosure to southern Rolluda/ We have considered the southern edge \\ROLLUDA-FP\data\@ACTIVE PROJECTS\ Education (K-12)\Tukwila SD - Transportation Bldg\03 Design\Permitting\TBD Planning dept Design Comments\TBD Planner CUP Comments reply 4-11-2017\TSD Transportation Bldg ReplyTBD Planner Cmnts RAI 4-11-2017.doc rol l uda architects 105 South Main Street 1 Suite 323 1 Seattle, WA 98104 206.624.4222 p 1 206.624.4226 f www.rolludaarchitects.com edge of parking lot. AHBL Civil of the parking for the trash enclosure. The southern edge of the parking, in the landscape area has challenges; the existing fence to remain may be impacted, a minor grade change may cause issues and proximity to the property line may be a challenge. We believe the best location for the is the current location, especially with the adjustment of the parking to allow for more generous access. Suggest providing multiple color schemes for Rolluda We have now provided two color Board of Architectural Review to review. schemes for the Architectural Board review. With review meeting on 4-10- 2017, it was determined to submit one rendering with dark trim scheme. \\ROLLUDA-FP\data\@ACTIVE PROJECTS Education (K-12)\Tukwila SD - Transportation Btdg\03 Design\Permitting\TBD Planning dept Design Comments\TBD Planner CUP Comments reply 4.11.2017\TSD Transportation Bldg ReplyTBD Planner Cmnts RAI 4-11-2017.doc 0 451t Specifications Luminaire Height: Width: Depth: Weight: 8-1/2" (21.59 cm) 17" (43.18 cm) 10-3/16" (25.9 cm) 20 Ibs (9.1 kg) WST LED Architectural Wall Sconce 3.0 NIGHRWE FRIENDLY Optional Back Box (BBVV) Height: Width: Depth: 4" (10.2 cm) 5-1/2" (14.0 cm) 1-1/2" (3.8 cm) FOR 3/4. NPT SIDE -ENTRY FOR 1/4' MOUNTING BOLTS Catalog Number WST LED-P2-40K-VW-120-PE-E20WH-DNA) 'Notes TSD - TRANSPORTATION BLDG 7TYpe WE Introduction The WST LED is designed with the specifier in mind. The traditional, trapezoidal shape offers a soft, non-pixilated light source for end -user visual comfort. For emergency egress lighting, the WST LED offers six battery options, including remote. For additional code compliance and energy savings, there is also a Bi-level motion sensor option. With so many standard and optional features, three lumen packages, and high LPW, the WST LED is your "go to" luminaire for most any application. Ordering Information WST LED P2 Series WST LED Performance Package P1 1,500 Lumen package P2 3,000 Lumen package P3 6,000 Lumen package PE - E20WH - DNAXD 40K Color temperature 27K 2700 K 30K 3000 K 40K 4000 K 50K 5000 K VW Distribution VF Visual comfort forward throw VW Visual comfort wide EXAMPLE: WST LED P1 40K VF MVOLT DDBTXD 120 Voltage MVOLT' 120 208' 240' 277' 347 480 Shipped included (blank) Surface mounting bracket Shipped separately BBW Surface -mounted back box' PBBW Premium surface -mounted back box" Options PE Photoelectric cell, button type PER PERS PER7 PIR PIR1FC3V PIRH PIRH1FC3V SF DF D5 E7WH NEMA twist -lock receptacle only Five -wire receptacle only Seven -wire receptacle only Motion/Ambient Light Sensor, 8-15' mounting height° Motion/ambient sensor, 8-15' mounting height, ambient sensor enabled at tfca 180° motion/ambient light sensor, 15-30' mounting height' Motion/ambient sensor, 15-30' mounting height, ambient sensor enabled at 1fc4 Single fuse (120, 277, 347V)' Double fuse (208, 240, 480V)' Dual switching' Emergency battery backup (7W)' E7WC E7WHR Emergency battery backup (cold, 7W)" Remote emergency battery backup (remote 7W)" E20WH Emergency battery backup (20W(" E2OWC E23WHR LCE RCE Emergency battery backup (cold, 20W)708.Io Remote emergency battery backup (remote 20W)'' Left side conduit entry" Right side conduit entry" Shipped separately RBPW Retrofit back plate' VG Vandal guard" WG Wire guard" Finish (required) DDBXD Dark bronze DBBXD Black DNAXD Natural aluminum DWHXD DSSXD DDBTXD DBLBXD DNATXD DWHGXD DSSTXD White Sandstone Textured dark bronze Textured black Textured natural aluminum Textured white Textured sandstone Accessories Ordered and shipped separately WSIVCPBBW DDBXD U WSBBW DDSIX U RBPW DDBXD Premium Surface -mounted back box Surface -mounted bah box Retrofit back plate OFA L/THOMIA L/GHTSNG, NOTES 1 MVOLT driver operates on any line voltage from 120-277V (50/60 Hz). Specify 120, 208, 240 or 277 options only. when ordering with button type photocell (PE), fusing (SF, DF), or dual switching (DS). 2 Also available as a separate accessory; see accessories information. 3 Top conduit entry standard. 4 Not available with PE, PER, PERS, PER7, VG or WG. 5 Not available with MVOLT option. Button photocell (PE) can be ordered with a dedicated voltage option. Single fuse (SF) requires 120, 277 or 347 voltage option. Double fuse (DF) requires 208, 240 or 480 voltage option. 6 Not available with E7WH, E7WC, E7WHR, E2OWC, E20WH, or E23WHR. Used with inverter system. Not available with 347/480V. Not available with PE, PER, PERS & PER7. 7 Not available with 347/480V. 8 Battery pack rated for -20° to 40°C. 9 Comes with PBBW. 10 Warranty period is 3-years. 11 Not available with BBW. 12 Must order with fixture; not an accessory. One Lithonia Way • Conyers, Georgia 30012 • Phone: 800.279.8041 • wwv: 2011-2016 Acuity Brands Lighting, Inc. All rights reserved. WST-LED Rev. 10/11/16 Emergency Battery Operation The emergency battery backup is integral to the luminaire - no external housing required! This design provides reliable emergency operation while maintaining the aesthetics of the product. All emergency backup configurations include an independent secondary driver with an integral relay to immediately detect AC power loss, meeting interpretations of NFPA 70, NEC 2008 • 100 16 The emergency battery will power the luminaire for a minimum duration of 90 minutes (maximum duration of three hours) from the time supply power is lost, per International Building Code Section 1006 and NFPA 101 Lie Safety Code Section 7.9. provided luminaires are mounted at an appropriate height and illuminate an open space with no major obstructions. The examples below show illuminance of 1 fc average and 0.1 fc minimum of the P1 power package and VF distribution product in emergency mode. 10' x 10' Gridlines 8' and 12' Mounting Height WST LED P1 27K VF MVOLT E7WH WST LED P2 40K VF MVOLT E20WH Performance Data Lumen Output Lumen values are from photometric tests performed in accordance with IESNA LM-79-08. Data is considered to be representative of the configurations shown, within the tolerances allowed by Lighting Facts, Performance Package System Watts (MVOLT) Dist Type 27K (2700K, 70 CRI) 30K (3000K, 70 CRI) 40K (4000K, 70 CRI) 50K (5000K, 70 CRI) P1 12W VF 1,49410 0 1 0 1 125 1,529 0 0 1 0 1 127 1,639 0 0 0 1 137 1,639 0 j 0 1 0 137 VW 1513 i 0 0 0 126 1,548 0 0 l 0 129 1,660 0 0 0 1 138 1,660 0 ': 0 1 0 138 P2 25W VF 3,162 1 1 0 j 1 1 126 3,236 1 0 1; 129 3,468 1 0 1 139 3,468 1 1 i 0 i 1 139 VW 3,202 1 0! 0 I 128 3,277 1 0 j 0 131 3512 1 0 0 140 3512 1 1 1 0 0 140 P3 SOW VF 6,023 1 1 1 0' 1 i 120 6,164 1 0 1 1 i 123 6,607 1 0 1 132 6,607 ( 1 0 1 132 VW 6,100 1 1 I 0 i 1 ':, 122 ( 6,242 1 0 1 1 ': 125 i 6,691 1 0, 1 134 6,691 1 1 i 0 1 134 Lumen Ambient Temperature (LAT) Multipliers Use these factors to determine relative lumen output for average ambient temperatures from 0-40°C (32-104°F). Ambient 0°C 10°C 20°C 25°C 30°C 40°C 32°F 50°F 68°F 7rF 86°F 104°F Lumen Multiplier 1.03 1.02 1.01 1.00 0.99 0.98 Projected LED Lumen Maintenance Values calculated according to IESNA TM-21-11 methodology and valid up to 40°C. Operating Hours Lumen Maintenance Factor 0 25,000 50,000 100,000 1.0 >0.95 >0.92 >0.87 OPA L/THONIA LIGHT/NG° Electrical Load Current (A) Performance package System Watts 120 208 240 277 347 480 11 1 0.1 0.06 0.05 0.04 - -- P1 14 --- -- - -- 0.04 0.03 Pt D5 14 ': 0.12 0.07 0.06 0.06 - -- 25 ' 021 0.13 0.11 0.1 -- -- P2 30 - - - - 0.09 0.06 P2 DS 25 ! 021 1- 0.13 0.11 0.1 -- -- 50 1 0.42 0.24 0.21 0.19 -- -- P3 56 1 - - -- - 0.16 0.12 P3 DS 52 .! 0.43 026 023 021 -- -- One Lithonia Way • Conyers, Georgia 30012 • Phone: 800.279.8041 • ww,v.litFon a. con, © 2011-2016 Acuity Brands Lighting, Inc. All rights reserved. WST-LED Rev. 10/11/16 ome rip grams To see complete photometric reports or download .ies files for this product, visit Lithonia Lighting's WST LED homepage. Isofootcandle plots for the WST LED P3 40K VF and VW. Distances are in units of mounting height (101 LEGEND 0.1 fc . 0.5 fc ■ 1.0fc . 5.0 fc 4 3 3 2 1 0 1 2 3 4 4 3 2 1 0 1 2 3 4 VF 4 T 2 1 0 -2 3 1 t Distribution overlay comparison to 175W metal halide. LEGEND ■WST LED, 0.5 fc ■ WST HID, 0.5 fc 10' W Sidewalk LLDs: WST HID =0,72 WST LED = 0.95 WST LED P3 40K VF, WST 175M FT Probe, 12' Mounting Ht FEATURES & SPECIFICATIONS INTENDED USE The classic architectural shape of the WST LED was designed for applications such as hospitals, schools, malls, restaurants, and commercial buildings. The long life LEDs and driver make this luminaire nearly maintenance -free. CONSTRUCTION The single -piece die-cast aluminum housing integrates secondary heat sinks to optimize thermal transfer from the internal light engine heat sinks and promote long life. The driver is mounted in direct contact with the casting for a low operating temperature and long life. The die-cast door frame is fully gasketed with a one-piece solid silicone gasket to keep out moisture and dust, providing art IP65 rating for the luminaire. FINISH Exterior parts are protected by a zinc -infused Super Durable TGIC thermoset powder coat finish that provides superior resistance to corrosion and weathering. A tightly controlled multi -stage process ensures a minimum 3 mils thickness for a finish that can withstand extreme climate changes without cracking or peeling. Standard Super Durable colors include dark bronze, black, natural aluminum, sandstone and white. Available in textured and non -textured finishes. OPTICS Well crafted reflector optics allow the light engine to be recessed within the luminaire, providing visual comfort, superior distribution, uniformity, and spacing in wall -mount applications. The WST LED has zero uplight and qualifies as a Nighttime Friendly° product, meaning it is consistent with the LEED° and Green Globesnn criteria for eliminating wasteful uplight. '. L/THON/A L/GHT/NG. ELECTRICAL Light engine(s) consist of 98 high -efficacy LEDs mounted to a metal core circuit board and integral aluminum heat sinks to maximize heat dissipation and promote long life (100,000 hrs at 40°C, L87). Class 2 electronic driver has a power factor >90%, THD <20%. Easily - serviceable surge protection device meets a minimum Category B (per ANSI/IEEE C62.41.2). INSTALLATION A universal mounting plate with integral mounting support arms allows the fixture to hinge down for easy access while making wiring connections. LISTINGS CSA certified to U.S. and Canadian standards. Luminaire is IP65 rated. PIR options are rated for wet location. Rated for -30°C to 40°C ambient. DesignLights Consortium° (DLC) Premium qualified product. Not all versions of this product may be DLC Premium qualified. Please check the DLC Qualified Products List at yhts .m2/QP_to confirm which versions are qualified. WARRANTY 5-year limited warranty. Complete warranty terms located at: 3..ntyi,r.1116s<om,i:,,.tomar3:,. ru,:os, T..r no _and Note: Actual performance may differ as a result of end -user environment and application. All values are design or typical values, measured under laboratory conditions at 25 °C. Specifications subject to change without notice. One Lithonia Way • Conyers, Georgia 30012 • Phone: 800.279.8041 • •,vevsv-liihoni:l.com WST-LED © 2011-2016 Acuity Brands Lighting, Inc All rights reserved. Rev. 10/11/16 rolluda architects 105 South Main Street I Suite 323 I Seattle, WA 98104 206.624.4222 p 1 206.624.4226 f www.rolludaarchitects.com Memorandum Date: 4-11-2017 To: City of Tukwila Department of From Alexander Clark AIA Community Development Rolluda Architects Inc Minnie Dhaliwal - Planning Supervisor - Max Baker - Assistant Planner Project: Tukwila School District — Project #: 331-16-01 Transportation Building Re: Reply to Public Comments of the Tukwila School District - Transportation Building. April 10, 2017 Maxwell Baker, Assistant Planner Department of Community Development City of Tukwila 6300 Southcenter Blvd, Suite 100 Tukwila, WA 98188 Re: Tukwila School District Transportation Building CUP & Design Review City File No. PL17-0005, L17-0006, L17-007 Response to Public Comments Dear Max, We are in receipt of two public comments received on the above reference application. One was a letter received from Brian Kennedy and one was a summary of a phone call the City received from Virginia Whitzel. Below is a response to each comment received. Response to Brian Kennedy Letter dated March 13, 2017 The comment letter raised the following concerns: 1. Upkeep of landscaping — Mr. Kennedy commented that many shrubs have been removed. He would prefer indigenous plants that attract birds. Applicant response: Ten -foot wide perimeter landscape buffers will be provided, which will improve the aesthetic appearance, buffering and screening of the use to surrounding residences and the right-of-way. City code requires plant materials in the buffer to consist of the following: ✓ Trees: A mix of deciduous and evergreen trees ✓ One shrub per 7 linear feet to achieve a continuous vertical layer in 3 years. ROLLUDA-FP\data\@ACTIVE PROJECTS\ Education (K-12)\Tukwila SD - Transportation Bldg\03 Design\Permitting\TBD Planning dept Design Comments\TBD Planner CUP Comments reply 4-11-2017\TSD Transportation Bldg Reply to Public Cmnts RAI 4-11-2017.doc • rolluda architects 105 South Main Street I Suite 323 I Seattle, WA 98104 206.624.4222 p 1206.624.4226 f www.rolludaarchitects.com ✓ Groundcover of varying heights, colors and textures to achieve 100% coverage within 3 years. The proposed landscaping will be verified to ensure the plantings are done according to City standards, including the species used. We are planting native plants, in particular Serviceberry, which is a native plant species that's popular with birds. We also have two different huckleberry and Oregon grape plants which produce fruit that attract birds. • Parking — He would prefer no street parking. Applicant response: Employee parking will be accommodated onsite. The project is providing 25 vehicular parking spaces for bus driver use. There are approximately 18 bus drivers that will be using the new transportation building. • Noise and Traffic — Both have consistently increased in the neighborhood over the years and have impacted the livability of the neighborhood. Applicant response: The proposal is to provide a new indoor office facility for the transportation staff to improve their daily work life by offering them a place to take a break, use the restroom, eat lunch, etc. There is no additional capacity (i.e. more traffic) that will result from the proposal. The building itself provides offices, restrooms and breakroom facilities none of which will generate any new noise to the neighborhood as these are typical office -type activities that occur indoors. The school buses do cause some noise, however they have been using this site for several years and primarily run during school start and end times. They are required to follow strict protocols to limit idling when not in use. The District has recently purchased new buses that will be replacing the older buses. They will be quieter and reduce emissions. The proposed transportation building is located within the Neighborhood Commercial Center (NCC) zoning district, and is considered a "Conditional use." This means that this use is only approved subject to conditions and mitigation measures that ensure compatibility with surrounding uses. The proposal will undergo a thorough review regarding its compatibility with the surrounding neighborhood. It is also subject to the design review process, where site design, building design, and landscaping will be evaluated to ensure that it is appropriate for the Neighborhood Commercial Zone and that it is appropriately buffered from nearby residential uses. \\ROLLUDA-FP\data\@ACTIVE PROJECTS Education (K-12)\Tukwila SD - Transportation Bldg\03 Design\Permitting\TBD Planning dept Design Comments\TBD Planner CUP Comments reply 4-11-2017\TSD Transportation Bldg Reply to Public Cmnts RAI 4-11-2017.doc GENERAL LANDSCAPE NOTES rottuda architects 10' WIDE TYPE I LANDSCAPE SOUTH 128TH STREET 1 PROPOSED TREE (PER CITY OF TUKWILA 10' WIDE TYPE I PERIMETER LANDSCAPE REQUIRED. URBAN ENVIRONMENTALIST ASSESSMENT OF 1 PROPOSED TREE SITE CONDITIONS), 9 PROPOSED SHRUBS (9 1 EXISTING SHRUB, 7 PROPOSED (6 REQUIRED) REQUIRED), 165 KINNIKINNICK GROUNDCOVER 103 KINNIKINNICK GROUNDCOVER PROPOSED. PROPOSED. 387' O 4,—.—a EXISTING TREE, TYP. EXISTING SIDEWALK TYP. MOTORIZED GATE OPENER, TYP. SEE ARCH e� HYDROSEED DISTURBED SWALE AND CURB AREAS- SEE CIVIL PROPOSED BUILDING- SEE ARCH 0 0 C377'. Know what's below. Call before you dig. it—Y_ 165'-3' 10' WIDE TYPE II PERIMETER LANDSCAPE REQUIRED. TREE REQUIREMENTS MET BY EXISTING VEGETATION. 43 PROPOSED SHRUBS (41 REQUIRED). 395 MAHONIA GROUNDCOVERS PROPOSED. IVY AND BLACKBERRIES TO BE REMOVED BEFORE INSTALLATION NEW PLANTINGS. 70-7' 10' WIDE TYPE I PERIMETER LANDSCAPE REQUIRED. TREE, SHRUB AND GROUNDCOVER REQUIREMENTS MET BY EXISTING VEGETATION, PER CITY OF TUKWILA URBAN ENVIRONMENTALIST (10 SHRUBS REQUIRED) 103'-0' 10' WIDE TYPE II PERIMETER LANDSCAPE REQUIRED. 4 PROPOSED TREES, 28 PROPOSED SHRUBS (26 REQUIRED). 203 KINNIKINNICK GROUNDCOVERS PROPOSED ENGLISH IVY AND BLACKBERRIES TO BE REMOVED BEFORE INSTALLATION OF NEW PLANTINGS. EXISTING TREE, TYP. 1- Q • SEE TL2.0 FOR LANDSCAPE DETAILS AND TL2.1 FOR IRRIGATION DETAILS. • SEE TL3.0 FOR IRRIGATOR PLAN. • SEE CIVIL FOR TREE PROTECTION PLAN AND DETAILS SEE SPECIFICATIONS FOR PLANT MATERIAL, MULCHING, SOIL AMENDMENTS, FERTILIZERS AND WARRANTIES. • AMEND, TILL, AND PREP SOIL IN BUFFER ZONES BUT OUTSIDE ROOT ZONES TO 12' DEPTH, PER BMP T5.13,'POST CONSTRUCTION SOIL QUALITY AND DEPTH,' FROM THE WASHINGTON DEPARTMENT OF ECOLOGY STORMWATER MANAGEMENT MANUAL FOR WESTERN WASHINGTON. SCHEDULE AN INSPECTION BY THE CITY OF THE PLANTING AREAS PRIOR TO PLANTING TO ENSURE SOILS ARE PROPERLY PREPARED. • GROUNDCOVER AND SHRUBS TO BE PLANTED UNDER EXISTING TREES TO BE PIT PLANTED. CONTRACTOR SHALL TAKE CARE TO AVOID DAMAGING EXISTING ROOT SYSTEM. • REMOVE AND CONTROL ALL ENGLSH IVY, BLACKBERRIES, JAPANESE KNOTWEED AND ANY OTHER NOXIOUS WEEDS ON SITE PER INSTRUCTIONS AT W W W.KINGCOUNTY.GOWWEEDS. • PLANTING SHALL CONFORM TO ALL CITY OF TUKWILA MUNICIPAL CODE REQUIREMENTS, INCLUDING PRESERVATION OF ADEQUATE INTERSECTION SIGHT DISTANCE ONES! TRIANGULAR AREAS. • CONTRACTOR SHALL VERIFY ON -SITE CONDITIONS PRIOR TO BIDDING AND CONSTRUCTOR. • THE CONTRACTOR AND OWNER ARE RESPONSIBLE FOR READING THE PLANS, SPECIFICATIONS AND NOTES. • THE CONTRACTOR SHALL VERIFY ALL PLANT MATERIAL QUANTITIES PRIOR TO INSTALLATION. ANY PLANT MATERIAL QUANTITIES USTED ARE FOR THE CONVENIENCE OF THE CONTRACTOR. ACTUAL NUMBER OF SYMBOLS SHALL HAVE PRIORITY OVER QUANTITY DESIGNATED. THE CONTRACTOR SHALL BE RESPONSIBLE FOR COUNTING THE TOTAL NUMBER OF PLANTS INDICATED ON THE PLANS AND ESTIMATING GROUNDCOVER QUANTITIES. • THE CONTRACTOR SHALL FURNISH AND PAY FOR ALL CONTAINER OR FIELD GROWN TREES, SHRUBS AND GROUNDCOVERS, INCLUDING SEEDED AND SODDED TURF, HYDROMULCHES AND FLATTED GROUNDCOVERS. THE CONTRACTOR SHALL ALSO BE RESPONSIBLE AND PAY FOR: PLANTING OF ALL PLANT MATERIALS; THE SPECIFIED GUARANTEE OF ALL PLANT MATERIALS; THE STAKING AND GUYING OF TREES AND THE CONTINUOUS PROTECTION OF ALL PLANT MATERIALS UPON THEIR ARRIVAL AT THE SITE. PLANT SCHEDULE TREES 0 CODE BOTANICAL NAME COMMON NAME CONT AG AMELANCHIER X GRANDIFLORA'AUTUMN BRILLIANCE' 'AUTUMN BRILLIANCE' SERVICEBERRY 6' HT MIN. MULTISTEM CG CHAMAECYPARIS OBTUSA 'GRACILIS' PV PARROTIA PERSICA'VANESSA' SHRUBS CODE BOTANICAL NAME 0 SA SYMPHORICARPOS ALBUS' O TD TAXUS X MED/A'DENSIFORMIS'. VT VACCINIUM OVATUM 'THUNDERBIRD'. O VP VACCINIUM PARVIFOLIUM' GROUND COVERS CODE BOTANICAL NAME AM ARCTOSTAPHYLOS UVA-URSI 'MASSACHUSETTS' MN MAHONIA NERVOSA HS PT305 PROTIME PT305 SHADE/SUN MIX OR APPROVED EQUAL 'SHRUBS TO BE 18' TALL MIN. AT INSTALLATION EXISTING PLANTING SLENDER HINOKI CYPRESS 8' HT MIN. PERSIAN PARROTIA 2' CAL COMMON NAME CONT SNOWBERRY 2 GAL DENSE YEW 2 GAL EVERGREEN HUCKLEBERRY 2 GAL RED HUCKLEBERRY 2 GAL COMMON NAME CONT MASSACHUSETTS KINNIKINNICK 1 GAL OREGON GRAPE 1 GAL HYDROSEED TURF MIX EXISTING CODE REQUIRED PERIMETER PLANTING TO REMAIN EXISTING PLANTING TO REMAIN EXISTING TREES TO REMAIN- SOME SYMBOLS REPRESENT MULTIPLE TREES. SEE LABEL PERIMETER LANDSCAPE REQUIREMENTS TABLE PER CITY OF TUKWILA MUNICIPAL CODE 18.52.030 PERIMETER LANDSCAPE REQUIREMENTS TABLE A AND FOOTNOTES, NCC ZONING REQUIRES A 10' TYPE I BUFFER ALONG SOUTH 128TH STREET AND MARGINAL WAY, AND A 10' TYPE 11 BUFFER ALONG BACK AND SIDE YARDS, BECAUSE OF THE ADJACENT LDR ZONE. TYPE I PERIMETER LANDSCAPE: A MIX OF EVERGREEN AND DECIDUOUS TREES SPACED BASED ON SIZE, ONE SHRUB FOR EACH 7 UNEAL FEET OF REQUIRED PERIMETER EXCLUDING CURB CUTS, AND GROUNDCOVER. TYPE 11 PERIMETER LANDSCAPE: A MIX OF EVERGREEN AND DECIDUOUS TREES SPACED BASED UN SIZE, ONE SHRUB FOR EACH 4 UNEAL FEET OF REQUIRED PERIMETER EXCLUDING CURB CUTS, AND GROUNDCOVER. TYPE I PERIMETER LANDSCAPE LENGTH' 39+59'+166'=266' TREES PROVIDED: 5 SHRUBS REQUIRED:39 SHRUBS PROVIDED:46 TYPE II PERIMETER LANDSCAPE LENGTH:165'+103'=268' TREES PROVIDED: 4 SHRUBS REQUIRED: 67 SHRUBS PROVIDED: 71 QTY 3 3 SPACING QTY 48' o.c. 17 48' o.c. 53 36' o.0. 21 48' o.c. 26 SPACING QTY 24' o.c. 562 24' o.c. 342 HYDROSEED 1,297 SF luawdolenea A2iunwwoa ILIOZ 0 T &IV Q3AI 33 GRAPHIC SCALE O 10 20 40 FEET r - 20 FBCT architecture planning interior design 105 S. Main Street Suite 323 Seattle, WA 98104 t 206-624-4222 f: 206-624-4228 awEr.... CommiNy Rains E.g.. Dwo 13 TACOMA • SEATTLE SPOKANE • TRI-CITIES 1200 fig, Avenue. Suite 1620 Su114 WA 98101 208287.2425 le 208207.2429 FAX 000.44 aan Ref 12801 EAST MARGINAL WAY SOUTH, TUKWILA, WA 98168 REVISION DATE Design: JM Drawn: MS Checked: CS, KC Project No. 331-16-01 Issuance CUP Submittal Date: 4/10/2017 Drawing Title PLANTING PLAN Drawing Number TL1.0 TUKWILA PUBLIC SCHOOLS AUXILIARY PROJECTS PACKAGE #1 TRANSPORTATION BUILDING ABBREVIATIONS AFF APPROX ARCH BLDG BLKG BO CJ CL CLR COL CONC CONT DEMO DTL DIA DIM DN DS DWG (E), EXIST EJ EL ELEC EO EQUIP FCIO FIN FO FOIC FT GA GALV GWB GYP BD HORIZ HR HT HVAC ID INSUL ABOVE FINISHED FLOOR APPROXIMATE ARCHITECTURAL BUILDING BLOCKING BOTTOM OF CONTROL JOINT CENTERLINE CLEAR COLUMN CONCRETE CONTINUOUS, CONTINUE DEEP, DEPTH DEMOLISH, DEMOLITION DETAIL DIAMETER DIMENSION DOWN DOWNSPOUT DRAWING EAST EXISTING EXPANSION JOINT ELEVATION ELECTRIC, ELECTRICAL EQUAL EQUIPMENT MAX MECH MEZZ MFR MIN MISC MTL N NIC NO NTS OC OH OD OPNG OPP ORD PERP PLYWD PL PR PT RD REINF REQD REV RM FURNISHED BY CONTRACTOR/ RO INSTALLED BY OWNER SHT FINISH, FINISHED SHTHG FACE OF SIM FURNISHED BY OWNER/ SPEC INSTALLED BY CONTRACTOR SQ FOOT, FEET SS STL STOR STRUCT SUSP T&G TO TYP GAGE, GAUGE GALVANIZED GYPSUM WALL BOARD GYPSUM BOARD HIGH HORIZONTAL HOUR HEIGHT HEATING, VENTILATING, AND AIR CONDITIONING INSIDE DIAMETER INSULATE, INSULATION LONG REFERENCE SYMBOLS BUILDING SECTION INDICATOR IIk SECTION INDICATOR SECTION DETAIL INDICATOR 1 I ENLARGED DETAIL INDICATOR COLUMN GRIDLINE INDICATOR FLAGNOTE /; DRAWING REVISION INDICATOR MAXIMUM MECHANICAL MEZZANINE MANUFACTURE, MANUFACTURE MINIMUM, MINUTE MISCELLANEOUS METAL NORTH NOT IN CONTRACT NUMBER NOT TO SCALE ON CENTER 3. OVERHEAD OUTSIDE DIAMETER OPENING OPPOSITE OVERFLOW ROOF DRAIN PERPENDICULAR PLYWOOD PROPERTY LINE PAIR PAINT, POINT, PRESSURE TREATED 5 GENERAL NOTES RADIUS, RISER ROOF DRAIN, ROAD REINFORCED, REINFORCING REQUIRED REVISED, REVISION ROOM ROUGH OPENING SOUTH SHEET SHEATHING SIMILAR SPECIFICATION SQUARE STAINLESS STEEL STEEL STORAGE STRUCTURAL SUSPENDED TONGUE AND GROOVE TOP OF TYPICAL UON UNLESS OTHERWISE NOTED VERT VERTICAL W WI WIO WD WEST, WIDE WITH WITHOUT WOOD 1. 2. 4. 6. 7. NOTHING IN THE DRAWINGS SHALL BE CONSTRUED TO PERMIT AN INSTALLATION IN VIOLATION OF APPLICABLE CODES. ALL WORK PERFORMED UNDER THIS CONTRACT SHALL BE IN FULL ACCORDANCE WITH THE LATEST RULES, REGULATIONS, RESTRICTIONS, REQUIREMENTS, AND CODES OF THE GOVERNING JURISDICTIONS. THE DRAWINGS ARE INTENDED TO DESCRIBE THE OVERALL SCOPE OF WORK CONTRACTORS SHALL FIELD VERIFY EXISTING CONDITIONS AND DIMENSIONS ON THE PROJECT AND ALERT THE ARCHITECT TO ANY CONFLICTS BEFORE BEGINNING WORK DO NOT SCALE DRAWINGS. THE CONTRACTOR SHALL USE DIMENSIONS SHOWN ON THE DRAWINGS AND ACTUAL FIELD MEASUREMENTS. NOTIFY THE ARCHITECT OF ANY DISCREPANCIES WITH DRAWINGS. CONTRACTQR TO VERIFY ALL, DIMENSIONS, PROPERTY LINES, MEASUREMENTS AND CONDITIONS IN THE FIELD BEFORE BEGINNING WORK ANY DISCREPANCIES, ERRORS OR OMISSIONS TO BE BROUGHT TO THE ATTENTION OF THE ARCHITECT IMMEDIATELY. TYPICAL WALL SECTIONS, FINISHES, AND DETAILS ARE NOT INDICATED EVERYWHERE THEY OCCUR ON PLANS, ELEVATIONS, AND SECTIONS. REFER TO DETAILED DRAWINGS. DETAILED AND/OR LARGER SCALE DRAWINGS TAKE PRECEDENCE OVER GENERAL AND SMALLER SCALE DRAWINGS. GENERALLY PLAN DIMENSIONS SHOWN ARE TO FINISH OPENING, FACE OF CONCRETE, FACE OF STUD AND FINISH FACE OF WALL, UNLESS NOTED OTHERWISE. 8. UNLESS OTHERWISE NOTED, ALL ANGLES TO BE RIGHT ANGLES, ALL LINES WHICH APPEAR PARALLEL ARE TO BE PARALLEL, AND ALL ITEMS WHICH APPEAR CENTERED ARE TO BE CENTERED. CONTRACTOR TO BE RESPONSIBLE FOR MAINTAINING ALL UNES TRUE, LEVEL, PLUMB, AND SQUARE. 9. 10. 11. 12. XX'•XX' 13. XXXXXXX ELEVATION INDICATOR 14. asp _ _ MATCH LINE SEE SHEETAXXX MATCHLINE INDICATOR CONTRACTOR TO COMPLY WITH CIVIL, LANDSCAPE, STRUCTURAL, MECHANICAL AND ELECTRICAL NOTES. MECHANICAL AND ELECTRICAL SUBCONTRACTORS SHALL OBTAIN ALL REQUIRED PERMITS. THE CONTRACTOR SHALL VERIFY ALL ROUGH -IN DIMENSIONS FOR THE EQUIPMENT. ALL ATTACHMENTS, CONNECTIONS, AND FASTENINGS OF ANY NATURE ARE TO BE PROPERLY AND PERMANENTLY SECURED IN CONFORMANCE WITH THE BEST PRACTICES OF THE BUILDING INDUSTRY. DRAWINGS SHOW ONLY SPECIAL REQUIREMENTS TO ASSIST THE CONTRACTOR AND DO NOT SHOW EVERY DETAIL. CAULKING AND SEALANTS. USE PRIMERS AS REQUIRED BY MANUFACTURER. BACKING RODS OR TAPE AS RECOMMENDED BY MANUFACTURER AND PER SPECIFICATIONS. VAPOR BARRIERS. CONTINUOUS AND APPROVED VAPOR BARRIERS SHALL BE INSTALLED ON THE HEATED SIDE OF ALL THERMAL INSULATION INSTALLED AS INDICATED. SEAL ALL EDGES. 15. CONTRACTOR AT BEGINNING OF WORK TO FLUSH ALL ROOF DRAINS TO CONFIRM IN WORKING ORDER. AT CONCLUSION OF WORK CONTRACTOR TO TEST ALL ROOF DRAINS TO CONFIRM IN WORKING ORDER AND TIGHT LINES THROUGHOUT BUILDING AND PROVIDE CONFIRMATION REPORT TO OWNER. 16. CONTRACTOR SHALL VERIFY LOCATION OF ALL EXISTING UTILITIES AND PROTECT AS REQUIRED PRIOR TO COMMENCEMENT OF WORK 17. CONTRACTOR TO COORDINATE ALL OPERATIONS WITH OWNER, INCLUDING: SITE ACCESS, MATERIALS STORAGE, AND STAGING, INTERRUPTION OF ELECTRICAL AND MECHANICAL SERVICES AND TIMING OF NOISY AND DISRUPTIVE OPERATIONS. CONTRACTOR TO VERIFY SEQUENCE OF WORK WITH OWNER. 18. CONTRACTOR TO PROTECT EXISTING FURNISHINGS, FIXTURES, EQUIPMENT AND LANDSCAPING FROM DAMAGE. CONTRACTOR TO REPLACE IN KIND ANY SUCH ITEMS DAMAGED. 19. 20. 21. CONTRACTOR SHALL PROTECT ALL ROOF OPENINGS FROM WATER PENETRATION DURING CONSTRUCTION. CONTRACTOR SHALL MAINTAIN CURRENT RECORD DRAWINGS FOR ARCHITECTS PERIODIC REVIEW. AS BUILT DRAWINGS ARE BASED ON RECORD DRAWINGS AND MAY BE INCLUDED FOR REFERENCE AS TO THE SCOPE OF WORK ONLY. CONTRACTOR SHALL VISIT SITE PRIOR TO BID, EXAMINE EXISTING CONDITIONS AND INCLUDE ALL DEMOLITION REQUIREMENTS FOR THE SCOPE OF THE PROJECT IN THE CONTRACT SUM. NO ADDITIONAL PAYMENTS WILL BE MADE FOR FAILURE TO OBTAIN ALL REQUIRED INFORMATION AND MAKE KNOWN ANY INACCURACIES. 22. THROUGHOUT THE DRAWINGS ARE ABBREVIATIONS THAT ARE IN COMMON USE. THE LIST OF ABBREVIATIONS PROVIDED IS NOT INTENDED TO BE COMPLETE OR REPRESENTATIVE OF CONDITIONS OR MATERIALS USED ON THIS PROJECT. THE ARCHITECT WILL DEFINE THE INTENT OF ANY IN QUESTION. 23. INTERIOR PARTITION TYPES ARE GENERALLY KEYED ON ARCHITECTURAL FLOOR PLANS. SEE PARTITION TYPE FOR DESCRIPTIONS. THE FINISH SCHEDULE AUGMENTS THE PARTITION TYPE DESCRIPTION WITH INFORMATION REGARDING MATERIALS AND FINISHES. ?4. GENERALLY, THE EXISTING ELEMENTS ARE SHOWN WITH LIGHT SCREENEb LINES, WHILE NEW btt bEMOLISHEb OLOMEN'8 REOIJoktb BY THE PROJECT ARE SHOWN WITH DARK LINES. 25. ALL DOOR NUMBERS APPEAR ON THE PLANS EXCEPT WHERE ENLARGED PLANS ARE INDICATED. RELITES ARE NOT SCHEDULED UNLESS THEY ARE ADJACENT TO A DOOR. INDEPENDENT RELITES ARE SHOWN ON INTERIOR ELEVATIONS AND DETAIL KEYS ARE INDICATED THERE. NOTE THAT HOLLOW METAL DOOR SECTIONS ALSO OCCUR AT CERTAIN EXTERIOR ELEVATIONS. 26. MATERIAL FINISH CODES WHICH IDENTIFY MATERIAL AND FINISHES THROUGHOUT THE DRAWINGS ARE LISTED ON THE FINISH SCHEDULES. THE SPECIFICATIONS SECTIONS WHICH DEFINE THE MATERIALS ARE REFERENCED. FINISH SCHEDULE INDICATES THE VARIOUS FLOOR, WALL AND CEILING FINISHES IN THE INDIVIDUAL ROOMS INDICATED. REFER TO THE FINISH SCHEDULE NOTES FOR GENERAL FINISH INFORMATION AND WORK. 27. DEFINITIONS OF FINISH CEILINGS ARE SHOWN ON THE REFLECTED CEILING PLAN. MATERIAL, DIMENSIONS OF ELEMENTS WITHIN CEILING, AND SPOT ELEVATIONS OF VARIOUS CEILING PLANES ARE SHOWN. LAYOUTS OF LIGHT FIXTURES, MECHANICAL DIFFUSERS, ETC. IN ROOMS WITHOUT CEILINGS ARE SHOWN FOR DESIGN CLARITY ON REFLECTED CEILING PLANS. SEE MECHANICAL AND ELECTRICAL DRAWINGS FOR RESPECTIVE LAYOUTS, COORDINATE AS REQUIRED. 28. ROOFING TYPES ARE INDICATED ON THE ROOF LEVEL PLAN AT WHICH THEY OCCUR. THE MATERIAL FINISH CODE (RT) DESIGNATES ROOF TYPE DESCRIPTION. PROVIDE THERMAL ROOF INSULATION AS INDICATED BY ROOFING CODES. LOCATION MAP SCALE N.T.S. PROJECT DATA INFORMATION PROJECT DESCRIPTION: NEW ONE STORY TRANSPORTATION SUPPORT BUILDING LOCATED ON THE SW CORNER OF SITE AT EXISTING IMPERVIOUS SURFACE. ADJUSTMENT OF BUS PARKING AND STAFF PARKING. LANDSCAPE MODIFICATION AROUND EXISTING SITE PERIMETER. SITE ADDRESS: 12801 E. MARGINAL WAY SOUTH TUKWILA, WA 98168 PARKING LOT AT CORNER OF SOUTH 128TH STREET AND EAST MARGINAL WAY. A PORTION OF NE 1/4 OF THE NW 1/4 OF SEC.15, TWN. 23 N., RGE.04 E. W.M. CITY OF TUKWILA KING COUNTY WASHINGTON. ASSESSOR'S PARCEL NO: 238420-0010 LEGAL DESCRIPTION: LOT B OF CITY OF TUKWILA SHORT PLAT NO 90-4-SS RECORDING NO 9101140403, RECORDS OF KING COUNTY WASHINGTON. JURIDICTION: CITY OF TUKWILA APPLICABLE CODES: 2015 INTERNATIONAL BUILDING CODE 2015 INTERNATIONAL MECHANICAL CODE 2015 INTERNATIONAL FIRE CODE 2015 INTERNATIONAL PLUMBING CODE AND ALL RELATED STANDARDS AND STATE AMENDMENTS 2015 WASHINGTON STATE ENERGY CODE ZONING DESIGNATION: NCC CONSTRUCTION TYPE: V-8 OCCUPANCY TYPE: A-2, 8, S-1 LOT AREA 1.41 ACRES/ 61440 SF PROPOSED TOTAL FLOOR AREA 2,530 SF MAX BUILDING HEIGHT: 35'-0' PROJECT TEAM OWNER TUKWILA SCHOOL DISTRICT 4E40 S 144TH STREET TUKWILA, WA 98168 CONTACT: JEFF FEENEY, PROJECT MANAGER TEL: (206) 979.9370 FAX: NIA ARCHITECT ROLLUDA ARCHITECTS 105 S MAIN ST, SUITE 323 SEATTLE WA 98104 CONTACT: ALEXANDER CLERK, AIA ALEXCLARK@ROLLUDAARCHITECTS.COM TEL: (206) 624-4222 FAX: (206) 624-4226 CIVIL AHBL, INC 1200 6TH AVENUE, SUITE 1620 SEATTLE WA 98101 CONTACT: CHARLIE PALMER, DOUG TAFF CPALMERQAHBLCOM TEL: (206) 267-2425 FAX: (206) 267-2429 MECHANICAL TRESWEST ENGINEERS 2702 S 42ND ST k301, TACOMA, WA 98409 CONTACT: REID HERRON RSHQa TRESWEST.COM TEL: (253) 472-3300 FAX (253) 363-9402 ELECTRICAL TRESWEST ENGINEERS 2702 S 42ND ST 4301, TACOMA, WA 98409 CONTACT: SCOTT FELTON SKF@TRESWEST.COM TEL: (253)472-3300 FAX (253) 363-9402 STRUCTURAL REID MIDDLETON 728 134TH ST SW, SUITE 200, EVERETT, WA 98204 CONTACT: PAUL CROCKER PCROCKER@REIDMIDDLETON.COM TEL: (425) 741.3800 FAX: (425) 741.3900 LANDSCAPE AHBL, INC 1200 6TH AVENUE, SUITE 1820 SEATTLE WA 98101 CONTACT: MEREDITH SESSIONS MSESSIONS@AHBL.COM TEL: (206) 267-2425 FAX (206) 267-2429 DRAWING INDEX - TRANSPORTATION BUILDING SITE GENERAL TG0.01 COVER SHEET T1 TOPOGRAPHIC SURVEY CIVIL TC3.0 CIVIL SITE PLAN ARCHITECTURAL TA1.01 SITE PLAN PROPOSED TA2.01 FLOOR PLAN TA2.02 ROOF PLAN TA3.01 EXTERIOR ELEVATIONS TA4.01 BUILDING SECTIONS LANDSCAPE TL1.0 TL2.0 TL2.1 T13.0 PLANTING PLAN LANDSCAPE DETAILS IRRIGATION DETAILS IRRIGATION PLAN ELECTRICAL LTG.01 SITE LIGHTING CALCULATION RECEIVED APR 102017 Community Development CUP UPDATES rolluda architects architecture planning interior design 105 S. Main Street Suite 323 Seattle, WA 98104 t 206-624-4222 f: 206-624-4226 \ REGISTERED AR aaaxx E. Rolluda ISTATE OF WASHINGTON W 0 V JSUZ� 0<0< 0CL I-m (f)ZLLI ()05 J0HN a a,-,CK Q a Du) �ZN DD I-Q� REVISION DATE Design: Drawn: Checked: Project No. AC JL, JC AC 331-16-01 Issuance CUP UPDATES Date: 4/10/2017 Drawing Title COVER SHEET Drawing Number TG0.01 G0.01 COVERDWG 4/11/201710:14 AM TUKWILA SCHOOL DISTRICT NEW BUS BARN A PORTION OF THE NE 1/4 OF THE NW 1/4 OF SEC. 15, TWN. 23 N., RGE. 04 E. W,M. CITY OF TUKWILA, KING COUNTY, WASHINGTON. - `SSMH 1510 RIM-44.78 8" PVC N-E-W CENTER CHANNEL-33.38 6' PVC S 1E-34.80 LADDER S 5 ND RIPRAP STCB 1504 RIM-38.70-: 12" CPP E IE.36.62 12' CPP 5 1E4:36.72 12' CPP 1E=39.09 FOUND 1/2" REBAR AND CAP LS 21384 0.31' S OF CORNER LEGAL DESCRIPTION LOT B OF CITY OF TUKWILA SHORT PLAT NO 90-4-55 RECORDING NO 9101140403, RECORDS OF KING COUNTY, WASHINGTON. VERTICAL DATUM NAVD 1988 VERTICAL DATUM ON ORTNOMETRICALLY CORRECTED GPS OBSERVATIONS USING WSRN AND GEOID 2012A. WOOD RETAINING WALL BASIS OF BEARING NAD 1983 WASHINGTON STATE PLANE NORTH PROJECTION, BASED ON CPS OBSERVATIONS USING WSRN AND GEOID 2012A. UNITS OF MEASUREMENT ARE US SURVEY FEET. UTILITY NOTES 1. SURFACE U11UTY FACIUTIES ARE SHOWN HEREON PER FIELD LOCATED VISIBLE EVIDENCE THERE MAY BE UTILITIES THAT EXIST ON THIS SITE OTHER THAN THOSE GRAPHICALLY DEPICTED HEREON. 2. UNDERGROUND (BURIED) UTIUTIES SHOWN HEREON ARE BASED ON COMBINATIONS OF VISIBLE SURFACE EVIDENCE, UTILITY LOCATOR MARKINGS AND RECORD DATA (SUCH AS AS -BUILT OR UTILITY DESIGN DRAWINGS). ALL UNDERGROUND UTIUTES SHOWN HEREON ARE APPROXIMATE AND. IN SOME CASES, ARE SHOWN AS STRAIGHT UNES BETWEEN FIELD LOCATED SURFACE U0UTY FACILITES. UNDERGROUND UTLITES MAY HAVE BENDS. CURVES OR CONNECTIONS WHICH ARE NOT SHOWN. 3. ALTHOUGH LOCATIONS OF UNDERGROUND UTUTES BASED ON UTILITY LOCATOR MARKINGS AND RECORD DATA (SUCH AS AS -BUILT OR UTIUTY DESIGN DRAWINGS) ARE DEEMED REUABLE. AHBL INC. ASSUMES NO LIABILITY FOR THE ACCURACY OF SAID DATA. 4. CALL 1-800-424-5555 BEFORE ANY CONSTRUCTION. RELIANCE NOTE THIS SURVEY WAS PREPARED AT THE REQUEST OF JEFF FEENEY FOR THE SOLE AND EXCLUSIVE USE OF KMB DESIGN GROUPS, INC AND THE TUKWILA SCHOOL DISTRICT. RIGHTS TO RELY UPON AND, OR USE THIS SURVEY 00 NOT EXTEND TO ANY OTHER PARTY EXCEPT THROUGH EXPRESS RECERTIFICATION BY THE PROFESSIONAL LAND SURVEYOR WHOSE STAMP AND SIGNATURE APPEAR HEREON, EQUIPMENT USED 3' TOTAL STATION UTUZING STANDARD FIELD TRAVERSE METHODS FOR CONTROL AND STAKING. SURVEYOR'S CERTIFICATE I, DAVID C. FOLLANSBEE, A PROFESSIONAL LAND SURVEYOR IN THE STATE OF WASHINGTON, HEREBY CERTIFY THAT THIS MAP CORRECTLY REPRESENTS A SURVEY MADE BY ME OR UNDER MY DIRECT SUPERVISION IN NOVEMBER 2016, AT THE REQUEST OF KMB DESIGN GROUPS, INC. FOR TUKWILA SCHOOL DISTRICT. 03/30120/7 �MrtvlU C. FOI LANSBEE. PLS 45181 DATE STCB 1509 RIM.38.13 12' PVC NE 1E=35.18 AHBL #104 NAIL AND WASHER N.181664.6026 E:1281618.5152 ELEV:38.35 7j EIGHT LIMIT 2" STCB 1501 RIM-38.45 18" CMP N IE4:35.10 12" CPP S IE=35.30 W W-_- 0 PARKING STCB 1502 R18-39.05 12" CPP N 1E=35.33 12' CPP E 1E-35.38 12" CPP S IE=35.64 LATE / I STCB 1503.RI14639.14 12' CPP N 1E7435.69 12" CPP W 1E-35.74 C10}i CC8" 41 STCB 1686 RIM=41.08 12" CPP E IE-38.03 6' CPP SW 1E.38.05 7,5 46 47 STMH 1500 RIM=38.85 18" PVC N 1E-31.98 18' CMP S IE=35.08 12' PVC SW IE-35.08 LADDER E SSMH 1508 RIM-38.87 6" PVC E-W CENTER CHANNEL=34,42 4' CONC NE 1E=35.02 4' CONC SE IE-35.02 LADDER E SOUTH 128TH STREET --W W-----W NM'17' 1'� v n v CHAIN LINK n x ---D- --D 47, STMH 1684 RIM=41.35 PIPE W PLUGGED W/ CONC OVERFLOWS W AND SW TOP OF OUTLETS4736.50 BOTTOM MH=31.75 LADDER N it AM 238420-0010 61.332 SF 45 iiAHBL 4106 NAIL AND WASHER - 48181439.9234 E:1281670.9225 ELEV:46.87 L f -P.---_. ._ _ -. _ - . I/ -+ x-x-.-_ -T-- - .. J 6' CHAIN LINK ):fi" cti' 262.84 GATE n 12" CPP 47 IE.36.53 STCB 1505 RI44=43.10 18' CMP NW IE=34.70 8" CMP NE IE-40.60 18' CMP 5 1E=34.70 12' CAP W 1E-35.00 LADDER SW STCB 1665 RIM.41.2 12' CPP NE IC-37.38 12" CPP 12' CPP W 1E-37.38 1E-36.61 AA FOUND 1/2" REBAR AND CAP LS 21364 0.05' E AND 0.04' N OF CORNER Ng UB' 60 6= -tl 55 46 �ur" 124.r�1 W 64 _K--v- S89' 17 -FOUND 6 CHAIN Lit& _ `'-' REBAR AND CAP 0.03' N OF CORNER SO' 42' 49"W 26.82' "MO" ,-M12"/1076" Curve Table CURVE* LENGTH RADIUS DELTA CHORD DIRECTION CHORD LENGTH C1 50.58 192.19 15'04'44" S81' 44' 49"E 50.43 C2 79.49 543.15 8'23'07" N3' 24' 54'W 79.42 C3 1.13 13.00 4'59'53' N10' 06' 24'W 1.13 P12"-) OUND REBAR AND CAP 0.23'W AND 0.01' N OF CORNER O 4 STOP „hHEAD 51 YV O CENTURY- LINK CABINET FOUND STONE WITH X IN CASE AT 37TH AVE S AND 5 130114 ST (11-14-16) 9'17 11E UB"K2 FOUND 1/2" REBAR AND CAP LS 21364 0.08' E AND 0.13' N OF CORNER STCBR1-457 8"" CMP MP S IE-45.67 STCB 2139 RIM-48.81 18' CMP N 1E4:42.11 12" CONC E 1E4:45.36 18" CMP S 1E4742.11 mi LADDER W SOUTH 13OTH STREET - N88' 44' 47"i 80 Iq �N 1.5•. IIIYI PIPE III pll I0 (1) STMH 1507 R114.42.38 20' CONC NW 1E-34.28 20" CONC 5E IE=34.58 SOLID PIPE CROSSES E-W TOP OF PIPE.35.96 LADDER SE STCB 1506 RIM=42.51 8" CMP SW 1E=41.06 NO PARKING 30' 45 CO c7 STCB 2142 RIM-45.44 18" CMP N 1E4438.79 8' CMP NE 1E.42.69 18' CMP 5 1E4738.79 iFOUND 3" BRASS DISK WITH X IN CASE AT E MARGINAL CAS AND S 130TH ST (11-14-16) FOUND 7/8' PLUD IN CONC IN CASE AT CL OF E MARGINAL WAY 0.11' W AND 1.27' S OF RECORD POSTON (11-14-16) GRAPHIC SCALE 0 10 20 40 FEET 1"= 20 FEET LEGEND STCB 2141 RIM-44.76 B 8' CMP SW IE-42.51 6 0 m 0 a NJ FOUND MONUMENT AS NOTED SET NAIL AND WASHER SET REBAR AND CAP 601AR0 SIGN AS NOTED SANITARY SEWER CLEANOUT SANITARY SEWER MANHOLE STORM CLEANOUT STORM CATCH BASIN STORM MANHOLE YARD DRAIN GAS VALVE UTIUTY POWER POLE JUNCTION 800 POWER METER POWER VAULT LUMINAIRE COMMUNICATIONS MANHOLE TELEPHONE RISER TELEPHONE VAULT FIRE HYDRANT IRRIGATION CONTROL VALVE WATER METER WATER VALVE WATER VAULT A -ALDER, ACW-CO M-MAPLE, -M, 0-UNKNOWN MAPLU-UNKNOKN - - - - - D - STORM LINE - - - - -S- SEWER UNE - - - - - W- WATER UNE - ----G-GAS UNE - - - - -P ELECTRICAL LINE - - - - - T- COMMUNICATION LINE - - - - -- OHP - OVERHEAD UTUTIES - +-+-+-+- FENCE 1 ASPHALT CONCRETE RECEIVED APR 10 2011 Community Development TACOMA ' SEATTLE • SPOKANE •TRI-CITIES 2215 North 30th Street Suite 300 Tacoma, WA 98403 253.3332422 1EL 253,383.2572 FAX NWM3hbEwm WEB Pr4lect Title TUKWILA SCHOOL DISTRICT NEW BUS BARN Client: TUKWILA SCHOOL DISTRICT CO: KMB DESIGN GROUPS, INC 908 COLUMBIA STREET. SUITE 400 OLYMPIA, WA 98501 JEFF FEENEY J0b No. 2160801.50 Issue Set & Date. MARCH 30, 2017 43130/2017 N08CF MI LOME MIN 11,1.61 MINNA TM PM. 0.010,110.1. A Revisions: Sheet Title: TOPOGRAPHIC SURVEY Designee bv: prawn bY. Checked ov: TD DF Sheet No. T-1 1 of 1 Sheets STCB 1503 F:m=5313- 12' PVC NC. 1E::755.19 SIC91S0 RM.38. 18" CMP N I[ 235.,0 Fc� v vt• W / 3'x3X6" CONCRETE PAD FOR CONTROL STC9 1502 RIM '39 05 --\ GATE OPERATORS FOR EXISTING 12 CPP N :1:-:55.33 CPP C 1772,15.38 BI-PARTING GATE. SEE ARCHITECTURAL 1 P s 113,55,84 AND LANDSCAPE PLANS. -- Av STD@ 1504 RMe3870 12' CPP E IEe3862 ) .i '2' CPP S'3En'3(C7L'�..__... C-2 CPP- m39.09 '4 E#A IS 2..3,87-' ' I /'," "- 2# 12" CP: .e.. EXISTING STORM - UTILITY TRENCH FOR PIPE PER PARKING LOT CONSTRUCTION DRAWINGS • A l r } }I f 1. I I I✓` ` i r ): ) �i t / / 1 \ I RELOCATED UTILITY POLE / r 2 TRASH CONTAINER, SEE ARCHITECTURAL 1 •' PLAN FOR DETAIL 1'I I C 'i 1 .� I. MECHANICAL INI T, SEE ARCHITECTURAL AND MECHANICAL PLAN FOR DETAIL I .. I DOWNSPOUT TO DAYLIGHT TO SPLASH BLOCK Know what's below. CaII before you dig. IRRIGATION SEE LANDSCAPE PLAN EXISTING AREA DRAIN PER PARKING LOT CONSTRUCTION DRAWINGS 2- 13 PW-1 15CL P M-=38.89 r S M 1 508 F,IH=3Cz@7 18` PVC tN II'- 1-98 / , PVC- FA 16' CM„ . 3=3508 / CENTER- CN9NNL3 A34.42 i142'60ENL44" COON34CC 'NE IEE7 355.02 I.APUlR t. 2 1 / SO_.0TH. 128TH STREET I SECS 1888 RIMt41.08 12' CPP E IEm3803 6" CPP SW iE3,3 42 SSCO#2 RIM:43.49 IE: 39.99 6" (S) IE: 39.99 6' (NE) REESTABLISH AND REFRESH EXISTING SWALE® 7 NEW PARKING© e STALLS WITH -- -- WHEEL STOPS SSCO #1 RIM: 44.59 E: 43.24 6" (S) IE: 43.24 6' (N) 3 LF GT' PVC 4.T8% SEWER CONNECTION - IE: 43.38 PROPOSED BUILDING N89' 17' 11'W ___ -<- 1 S s_.. .._ _ CONNECT TO EXISTING STUB AT -�- PROPERTYUNE N. IE: 37.35i N. .$ .a .�` z l � 4 f SECB 505 H!M...' 10-� 18 CMP 11E33 10 8' CNN NE !EA 40.80 18' CMP S 8:-34. 70 12" CAP 'W iE-239.00 LADDER 5 ®SSCO #3 40 7 IE: 37.62 62 8 (SW)'4 IE: 37.62 6'J(N)_ 1 /4 %,7H`T682 hiTdm(f.35' � PLUGGED Wf /VERFLOWS W AND SW DP.1IF C43LET" 16_50__ 90110M MN 31 /5 •"uertrem �'.""^' NEW BUS PARKING NEW ADA PARKING STALL LF6' PVC @200% 202 relm 408 r• � PAINTED PEDESTRIAN r• ROUTE (SEE ARCH) iim .f• 84 3 X3'X8" CONCRETE PAD FOR CONTROL GATE OPERATORS FOR EXISTING BI-PARTING GATE. SEE ARCHITECTURAL AND LANDSCAPE j` PLANS. !1. ALTERNATE #3: - PROVIDE-ACOMPLETEASPHALT-- SEAL COAT AT ALL ASPHALT PAVING AT.THE PARKING LOT AND DR1VEWAY1 -+N RAP A 21..64 SAWCUT LINE ./_. 11/2'WATER METER _ 2'DOMESTIC W.ATER 200'LF w 1-8"x6"TEE 1 - 8" TO 4" REDUCER 1-THRUST BLOCK 5 NEW PARKING 1 - 4" 90' STALLS BEND 69.42; 1 4" FIRE SPRINKLER 90 LF DIP_ WATER AND FIRE r f7 FF CONNECTIONS + r OCSI-PPL78SLF olfr - .* IE: 44.37 RELOCATED Ark �a UTILITY POLE FDC - '- REESTABLISH AND REFRESH ' EXISTING SWALE • 5897_17' ±. _ DOWNSPOUT TO DAYLIGHT TO I • ' SPLASH BLOCK 50' 42' 49'W� 1 20.92' _J FIRE HYDRANT - 1' --� fiieL .rvn C;C RE` r ) 144.59' 4J CD 51l C1 Iwo 20C(NC NW CA 34.2.8 20CONC SF 1E3334.58 50 0 PIPE CROSSES- SAW TOP 0E P: 1: =35 98 S12 '-. •( LADDER SE ��-SIRS 1506 R.M2•4251 t 8' CMF SW it2-c+A0 W ) • O.IND / P ES, rC E A 1' MAR 3N37 W r a r I 45�"'� 51'C@ 21 Al R'M+44.76 '`J�8' f.MP 8W IF 42. •11 + STD@ 2142 RIMm45. 44 18' CrIEm36.79 8' MP YE :E=42.69 18" CMF S 1E3.38.79 PROPOSED e : DOMESTIC WATER O TO CONNECT INTO 1 EXISTING WET TAP 3.1 WATER VAULT I _DOUBLE DETECTOR CHECKASSEMBLY WITH BYPASS i WATER DISTRICT NO.125 STANDARD NOTES: 1. APPROXIMATE LOCATIONS OF EXISTING UTILITIES HAVE BEEN OBTAINED FROM AVAILABLE RECORDS AND ARE SHOWN FOR CONVENIENCE. THE CONTRACTOR SHALL BE RESPONSIBLE FOR VERIFICATION OF LOCATION SHOWN AND FOR DISCOVERY OF POSSIBLE ADDITIONAL UTILITIES NOT SHOWN SO AS TO AVOID DAMAGE OR DISTURBANCE. THE CONTRACTOR SHALL CONTACT THE UTILITIES UNDERGROUND LOCATION CENTER (1-800-424-5555) PRIOR TO CONSTRUCTION. THE OWNER OR HIS REPRESENTATIVE SHALL BE CONTACTED IF A UTILITY CONFLICT EXISTS. 2. CONTRACTOR SHALL NOTIFY DISTRICT ENGINEER A MINIMUM OF 48 HOURS IN ADVANCE OF ALL REQUESTS FOR STAKING, TESTING OR INSPECTION. 3. CONTRACTOR IS RESPONSIBLE FOR CONTROL AT THE TIME OF STAKING. 4. CONTRACTOR SHALL FURNISH SHOP DRAWINGS FOR APPROVAL WHERE REQUIRED BY THE DETAIL SPECIFICATIONS AND FOR VARIATION FROM THE ENGINEER'S DESIGN. 5. CONTRACTOR SHALL INSTALL EQUIPMENT IN ACCORDANCE WITH MANUFACTURER'S RECOMMENDATIONS, AND WO #125 SPECIFICATIONS. 6. CONTRACTOR SHALL FURNISH ALL MATERIALS. 7. ALL WATERMAIN PIPE SHALL BE DUCTILE IRON CLASS 52, PUSH -ON JOINT OR MECHANICAL JOINT, CEMENT LINED (ANSI A21.4), EXTERIOR COATED WITH MANUFACTURERS RECOMMENDATIONS. ALL FITTINGS SHALL BE CAST IRON AND SHALL CONFORM TO APPLICABLE PORTIONS OF ANSI STANDARD A21.10, A21.11, B16.2, B16.4 AND A21.53, WITH A MINIMUM PRESSURE RATING OF 150 PSI AND WILL BE CEMENT LINED. 8. ALL GATE VALVES TO BE MUELLER. ALL HYDRANTS TO BE MUELLER. 9. CUT -INS AND LIVE TAPS TO BE MADE BY CONTRACTOR WD #125 SUPERINTENDENT AND ENGINEER MUST BE NOTIFIED 48 HOURS IN ADVANCE. 10. CAST IRON MECHANICAL JOINT SLEEVE COUPLINGS REQUIRED. 11. TAPPING SLEEVES SHALL BE MUELLER CAST IRON, JCM EPDXY COATED STEEL, OR ROMAC SST WITH STAINLESS STEEL FLANGE. 12. CONTRACTOR IS RESPONSIBLE FOR VERIFYING ALL EXISTING PIPE TYPES AND SIZES FOR COUPLINGS, CONNECTIONS, CUT -INS, AND LIVE TAPS. 13. 3 1/2 FOOT MINIMUM COVER OVER ALL WATERMAIN PIPES. 14. DEVELOPER TO PAY FOR STATE, COUNTY AND CITY INSPECTION FEES. 15. ALL METER LOCATIONS TO BE COORDINATED WITH WATER DISTRICT NO. 125 SUPERINTENDENT. 16. ALL EXISTING FIRE HYDRANTS AND MAINS TO BE OPERATIONAL PRIOR TO COMMENCEMENT OF CONSTRUCTION. 17. NO CHANGES ARE TO BE MADE WITHOUT WRITTEN APPROVAL BY THE WD #125 SUPERINTENDENT OR DISTRICT ENGINEER. 18. REFER TO WD #125 CONDITIONS AND STANDARDS, FOR ALL REMAINING NOTES AND DETAILS. 19. PROVIDE 3/4' SERVICE LINE AND TAP CONNECTIONS FOR EACH EXISTING WATER METER. 20. MAXIMUM ALLOWABLE OPEN TRENCH SHALL BE 80'. 21. STOCK PILES SHALL BE COVERED DURIND ALL PERIODS CF PRECIPITATION. 22. MODIFIED PROCTOR COMPACTION AND MOISTURE CONTROL TEST REQUIRED AND COPIES OF TEST REPORTS SUBMITTED TO THE DISTRICT ENGINEER. ALL COMPACTION UNDER PAVED AND TRAFFIC ARES SHALL BE 95% MAXIMUM DENSITY MODIFIED PROCTOR PER ASTM D-1557. ALL OTHER AREAS TO BE 90% MAXIMUM DENSITY MODIFIED PROCTOR. 23. ALL VALVES, FIRE HYDRANTS AND SERVICES TO THE METER STOP TO BE INCLUDED AS PART OF ALL PRESSURE AND PURITY TESTS. NO EXCEPTIONS. 24. TRAFFIC CONTROL SHALL BE IN ACCORDANCE WITH CITY OF TUKWILA REQUIREMENTS. 25. ALL PIPE AND APPURTENANCES TO BE TESTED WITHIN 10 FEET OF ANY CONNECTION POINTS UNLESS OTHERWISE APPROVED BY ENGINEER. 26. CONCRETE THRUST BLOCKING SHALL BE PROVIDED AT ALL BENDS, TEES, VALVES OR OTHER APPURTENANCES WHERE INTERNAL FORCES REQUIRE RESTRAINT. BLOCKING SHALL BE IN ACCORDANCE WITH WATER DISTRICT NO. 125 STANDARDS. 27. THE TESTING AND DISINFECTION OF THE WATER SYSTEM SHALL BE WITNESSED BY WATER DISTRICT NO 125. UTILITIES NOTES: 1. ALL TRENCH EXCAVATION OPERATIONS SHALL MEET OR EXCEED ALL APPLICABLE SHORING LAWS FOR TRENCHES OVER 4-FEET DEEP. ALL TRENCH SAFETY SYSTEMS SHALL MEET WISHA REQUIREMENTS. 2. POWER, CABLE, FIBER OPTICS, AND TELEPHONE LINES SHALL BE IN A TRENCH WITH A 5' MINIMUM HORIZONTAL SEPARATION FROM OTHER UNDERGROUND UTILITIES. 3. ADJUST ALL MANHOLES, CATCH BASINS, AND VALVES IN PUBLIC RIGHTS -OF -WAY OR EASEMENTS AFTER ASPHALT PAVING. 4. UTILITY TRENCHING BEDDING AND BACKFILL SHALL BE PER DETAIL 8 ON SHEET TC3.3. STORM DRAINAGE NOTES: 1. ALL METHODS AND MATERIALS SHALL MEET CITY OF TUKWILA DEVELOPMENT GUIDELINES AND DESIGN AND CONSTRUCTION STANDARDS, AND THE ADOPTED KING COUNTY SURFACE WATER DESIGN MANUAL, UNLESS OTHERWISE APPROVED. 2 MARK ALL STORM DRAIN INLETS WITH "DUMP NO WASTE AND EITHER 'DRAINS TO STREAMS-, "DRAINS TO WETLANDS', OR "DRAINS TO GROUNDWATER', AS APPLICABLE. 3. DRIVEWAY CULVERTS SHALL BE OF SUFFICIENT LENGTH TO PROVIDE A MINIMUM 3:1 SLOPE FROM THE EDGE OF THE DRIVEWAY TO THE BOTTOM OF THE DITCH. CULVERTS SHALL HAVE BEVELED END SECTIONS THAT MATCH THE SIDE SLOPE. CIVIL LEGEND INTERCEPTOR SWALE PROPOSED BUILDING OUTLINE PROPOSED WATER SERVICE. TRENCHING PER COT STD PLAN WS-18. PROPOSED FIRE SERVICE. TRENCHING PER COT STD PLAN WS-18. PROPOSED SANITARY SEWER. TRENCHING PER COT STD PLAN DS-14A AND DS-14B ASPHALT PAVEMENT VERTICAL CURB GRAPHIC SCALE 0 10 20 40 1' = 20 FEET RECEIVED APR 10 2017 Community Development rolluda architects architecture planning interior design 105 S. Main Street Suite 323 Seattle, WA 98104 t: 206-624-4222 f: 206-624-4226 O /07iron REVISION DATE Design: Jared McDonald Drawn: Jared McDonald Checked: Doug Tapp Project No. 331-16-01 Issuance CUP UPDATES Date: 4/10/2017 Drawing Title CIVIL SITE PLAN Drawing Number TC3.0 rotluda architects SITE PLAN SCALE : 1" = 20'-0' O EXISTING CHAIN LINK FENCE, TYPICAL EXISTING LITE POLE TO REMAIN, TYPICAL EXISTING CURB TO REMAIN, TYPICAL 13'-61 IDE YAR[I I SETBACK . RECYCLE/TRASH ENCLOSURE AND GATE 140CF EDGE ABOVE EXISTING CURB TO REMAIN 8'-0"H MECH UNIT ENCLOSURE A1.01 LTBCSITE PLAN O SOUTH 128TH STREET EXISTING SIDEWAL --- PROPERTY LINE (E) EXIT BI-PARTING CH�IN LANK GATE W/MOTORIZED ��'_-i'" =—.-5— L OPERATOR J NEW GATE OPERATORS PER ARC ON CONCRETE PAD PER CIVIL/ —ICI OUT I ADD TRIP WARE I TO GATE 9 I ti 1 5�_ msTNG I DRIVE AISLE 1453'1• 1 O BI-P(EART) NO GATE W/MOTORIZED ` OPERATOR .7 \.......___ __. ..... ...._.��` IN PEDESTRIAN PATHWAY 1 (PAINTED) I EXISTING_. 1 DRIVE AISLE I 158,31/21 I I — I= I — � =. _,EIS I Cl N • -_--PAINT STRIPING 2S � -- ,-0•' -_' _ (7) NEW PARKING STALLS j-0' -0. 18'-0' \ l PROPOSED b BUILDING n —y � EXISTING CURB TO BE REMOVED I J NEW CURB @8'81W ADA PACENMI RELOCATED (E) LIGHT POLE 70'-4 3/41 CENTURY PROPERTY LINE LINK CABINET SOUTH 13OTH STREET O ( EAST MARGINAL WAY SOUTH EXISTING SWALE PROPOSED PARKING BUS STANDARD COMPACT ADA TOTAL 18 22 43 GENERAL SITE NOTES: 1. PATCH AND REPAIR EXISTING PAVEMENT DAMAGE PRIOR TO RESURFACING ENTIRE PARKING SURFACE 2. RE -STRIPE ENTIRE PARKING SURFACE, MATCHING EXISTING LAYOUT. STRIPE NEW LAYOUT AS INDICATED. 3. SEE LANDSCAPE 8 CIVIL DRAWINGS FOR ADDITIONAL INFORMATION RECEIVED APR 10 2011 Community Development architecture planning interior design 105 S. Main Street Suite 323 Seattle, WA 98104 t 206-624-4222 t: 206-624-4226 0250 \REGISTERED AR MBX ERdNde STATE OF WASHINGTON REVISION DATE Design: AC Drawn: JL, JC Checked: AC Project No. 331-16-01 Issuance CUP UPDATES Date: 4/10/2017 Drawing Title SITE PLAN Drawing Number TA1.01 A1.01_TB_SITE PLAN.DWG a C rolluda architects TA4.01 Qm EYEWASH STATION INSTALLED OVER SINK ADA ACTUATOR & CARD READER GENERAL PLAN NOTES MBH-1 C711— II—_ EL 47.81 STORAGE EM-1 W/DRAIN LANDING 16.-2 3/4• 13) 42'-8" 17.-4 1/4• 11'-5 1/4• LOCKERS FOIC BENCH LB- / WOMEN I RING IN BUZZER SMART SMART PROJECTION PROJECTION OFFICE 6'-0• 5'-01/4" 5'-0" 1 1 OFFICE 103 5'-4 3/4" 5'-0" 5'-4 3/4" 5'-0° 66.-0" 5'-7 3/4" 9' 1/4° FB-1 MBH-1 STRUCTU TACKBOARD SMART PROJECTION 15'-8" 5'-1 1 CONFERENCE / TRAINING 104 1/2" OPERABLE PARTITION WALL 5' 1" 3.-6" 6'-111/2" 10'-4 4• STORAGE VCT CPT FIRE CAB 5'-0" BREAK ROOM MECH ELEC 107 J FIRE SUPPRE SIO RANGE 0,' SEE N•TE PRoJECTION CPT VC 5'-0" 3'-0" 1. SEE SHEET TA9.03 FOR INTERIOR PARTITION TYPES 2. SEE SHEETS TA6.01 FOR INTERIOR FINISH SCHEDULE 3. SEE SHEET TA6.02 FOR DOOR TYPES 4. FIRE SUPPRESSION RANGE HOOD MEETING IMC SECTION 507.1.2 AND 505 FOR NO COMMERCIAL, NOT FOR PROFIT DOMESTIC COOKING APPLIANCE FLOOR PLAN SCALE V4- = 1'-0- LEGEND = NEW WALL • — NEW 1-HR WALL f 494.01 -- ICAL URE LINE OF ROOF EDGE ABOVE RECEIVED APR 10 2011 Community Development architecture planning interior design 105 S. Main Street Suite 323 Seattle, WA 98104 t: 206-624-4222 1: 206-624-4226 exso REGISTERED A/eexx ERaOuda STATE OF WASHINGTON w (7 JUZ0, Oa9� OUm z ()00 _ — re no w XZQ Q c~i a to o - m CO CO 55, O p J O F V 1 H REVISION DATE Design: AC Drawn: JL Checked: AC Project No. 331-16-01 Issuance CUP UPDATES Date: 4/10/2017 Drawing Title FLOOR PLAN Drawing Number TA2.01 A2.01 A2.02-TB-PLAN.DWG rotlude architects METAL GUTTER OSCALE :1/4-=1'-0' DS DS t1 n VP RCP NOTES RT-2 RT-2 1. SEE SHEET TA9.02 FOR EAVE DETAILS/OVERHANGS 2. SEE MECHANICAL FOR ROOF VENT SIZES AND LAYOUT 3. SEE TA6.01 FOR FINISH CODES ROOF PLAN VP VP RIDGE RT-2 RT-2 DS LINE OF BLDG BELOW 0 8 0 RECEIVED APR 10 2017 Community Development architecture planning interior design 105 S. Main Street Suite 323 Seattle, WA 98104 t: 206-624-4222 f: 206-624-4226 exs0 REGISTERED AR anduda STATE OF WASHINGTON 5 u 2 0 JO xxto cc w3m M coD W I — REVISION DATE Design: AC Drawn: JL Checked: AC Project No. 331-16-01 CUP UPDATES Date: 4/10/2017 Drawing Title ROOF PLAN Drawing Number TA2.02 A2.01 A2.02-TB-PLAN.DWG a C• 0 GENERAL NOTES: ONORTH ELEVATION SCALE :1/4.=1'-0' DOWNSPOUT TO SPLASI• BLOCK, TYP. 1 12 AUTOMATIC DOOR OPERATOR PER ELEC PIPE RAILING (R-1) 2.7 L 1. SEE SHEET TG0.01 FOR GENERAL PROJECT NOTES. 2. SEE SHEETS TA6.01 AND TA6.02 FOR FINISH CODES/SCHEDULE AND DOOR AND WINDOW SCHEDULES. 66.89' RIDGE HT z 0 O 0 0 0 0 SOFFIT BOARD (EF-3 ) PANEL (EF-2) 62.39' - TRIM (EF-5) TRIM (EF-4) LAP SIDING (EF-1) PIPE RAILING (R-1) CONCRETE STEM WALL PLATE HT 48.64' TOP OF SLAB FASCIA BOARD (PT-3) TRIM (EF-5) r PANEL (EF-2) TRIM (EF-4) LIGHT PER ELEC. LAP SIDING (EF-1) PIPE RAILING (R-1) CONCRETE STEM WALL O EAST ELEVATION 1'-0" TRIM (EF-5) PANEL (EF-2) TRIM (EF-4) LAP SIDING (EF-1) LIGHT PER ELEC. PIPE RAILING (R-1) CONCRETE CURB PARKING I, 2' OSCALE: 1/4'=1'-0' WEST ELEVATION 4 ILDING HT LIMIT CO s6.89' $RIDGE HT \ FASCIA BOARD (PT-3) 62.39' $PLATE HT LAP SIDING (EF-1) LIGHT PER ELEC. DOWNSPOUT TO SPLASHBLOCK TRIM (EF-4) CONCRETE STEM WALL 48.64' \ VTOP OF SLAB MECH ENCLOSURE kr 20'4 1/4" (MAX BUILDING HT LIMIT =135-01 v 66.89' OA INTAKE LOUVER PER MECH DOWNSPOUT TO SPLASH BLOCK, TYP. CONCRETE STEM WALL 14 15 -4 ROOF (RT-2) FASCIA BOARD (PT-3) t OSOUTH ELEVATION SCALE : 1/4' = 1'-0' -DOWNSPOUT TO SPLASH BLOCK, TYP. LAP SIDING (EF-1) TRIM (EF-4) PIPE RAILING (R-1) CONCRETE STEM WALL 4, RIDGE HT 62.39' PLATE HT \ \ 9 co 48.64' TOP OF SLAB 1. roll uda architects architecture planning interior design 105 S. Main Street Suite 323 Seattle, WA 98104 t: 206-624-4222 f: 206-624-4226 ezw REGISTERED ARC STATE OF WASHINGTON RECEIVED APR 10 2017 Community Dcvtl�wr, ra, tl REVISION DATE Design: AC Drawn: JL Checked: AC Project No. 331-16-01 Issuance CUP UPDATES Date: 4/10/2017 Drawing Title EXTERIOR ELEVATIONS Drawing Number TA3.01 A3.01 TB EXT ELEVATIONS.DWG a N CONC. RAMP AND MTL. GUARDRAIL N/ HANDRAIL, TYP. FINISH GRADE FINISH GRADE3. Ova `Sd`y• . )PP. {AND ,�- er -nml►. i %. CONFERENC TRAINING 104 R PREP 08 CUSTODIAN CLOS. OBUILDING SECTION SCALE 1/4"=1'-0' AI.OiCmo3UILDING SECTIONS LOBBY CONFERENCE/ T ' NING OPERABLE PARTITION WALL BREAK ROOM 1 ickwa • Nryv OBUILDING SECTION SCALE : 1/4" OPP. HAND OBUILDING SECTION SCALE : 1/4" = 1'-0' 6 TA9.0 ff/►7it111.f�1/ 111f'/_�(�MMNMM�r• �_f __ f _� / _ref!tii�._!____________________ ___________� _ IIMACAFirfAt - ( c BREAK ROOM MECH ELEC 66.89' $RIDGE HT 62.39' PLATE HT 48.64' $TOP OF SLAB 66.89' 'RIDGE HT 62.39' $PLATE HT FINISH GRADE , 48.64' TOP OF SLAB 666.89' RIDGE HT 62.39' PLATE HT RECEIVED APR 10 2011 Community DevelnPinent 48.64' TOP OF SLAB rolIuda architects architecture planning interior design 105 S. Main Street Suite 323 Seattle, WA 98104 t: 206-624-4222 f: 206-624-4228 0050 REGISTERED &AR STATE OF WASHINGTON w 0 Cl) U Z OUm z (_�-70� JOHN 0 0- a CC z g� Q N REVISION DATE Design: Drawn: Checked: Project No. AC JL AC 331-16-01 Issuance CUP UPDATES Date: 4/10/2017 Drawing Title BUILDING SECTIONS Drawing Number TA4.01 A4.01 TB BUILDING SECTIONS.DWG 3IO201 / 12 1 PM NOTE: 1. TREES NOT PLANTED IN CONFORMANCE WITH THIS DETAIL WILL BE REJECTED BY THE LANDSCAPE ARCHITECT. REPLACEMENT OF REJECTED TREES WILL BE DONE AT THE CONTRACTOR'S EXPENSE. AT TIME OF PLANTING, TRIM DAMAGED BRANCHES. ROOTBALL 3" MULCH. NO MULCH WITHIN 3 OF TRUNK 3"-4" HIGH WATERING RING SCARIFY SIDES OF PLANTING PIT BACKFILL WITH EXISTING SOIL — DO NOT DISTURB SUBGRADE — BELOW ROOTBALL TO REDUCE SETTLING. - STAKE TREE WITH TWO 2"X2"X8' STAKES SPREAD ACROSS FROM EACH OTHER N-- APPROVED TREE TIE MATERIAL SET LOOSE TO ALLOW FOR TRUNK GROWTH DRIVE STAKES AT ROOTBALL EDGE DECIDUOUS TREE PLANTING 3X ROOTBALL DRIVE STAKES 6'-12" INTO UNDISTURBED SOIL BELOW ROOTBALL 3/8" NOTE: 1. ALL GROUNDCOVER TO BE PLANTED AT EQUAL TRIANGULAR SPACING PER O.C. SPACING ON LEGEND. SPACING X .86 FOR / TRANGULAR PATTERN 12" MIN FROM CURB 3" OF MULCH. NO MULCH AGAINST THE BASE OF THE PLANT BACKFILL WITH EXCAVATED SOIL. WATER THOROUGHLY. GROUNDCOVER PLANTING PLAN 9 0 0 0 0 0 2X ROOTBALL OGROUNDCOVER PLANTING 1/2"= 1'A" Know what's below. CaII before you dig. ISPACING AS SPECIFIED BRDG-TU-66 8.5 x 11- laminated m Paste spaced every 54r along the fence. 3" MULCH. NO MULCH WITHIN 3" OF THE BASE OF THE PLANT BACKFILL WITH EXCAVATED SOIL REMOVE BURLAP FROM TOP AND SIDES OF ROOT BALL DOWN INTO GROUND. SET TOP OF BALL FLUSH MATH FINISH GRADE. SHRUB PLANTING SCARIFY SIDES OF PLANTING PIT LOOSEN / PULL OUT ROOTS FROM CONTAINER GROWN PLANTS NTS Crown drip Me or other limit of Tree Protection area See tree preservation plan for fence alignmo1L of OTREE PROTECTION NTS SECTION VIEW NMes: 1- See apeurraelwu for additional tree protection requirements. 2. 11 There is no existing mbetion sea spectka:Ions for watering 10WNements. 3- No pruning shall be porlonnod except by approved °Modst. 4- No equipment shall operate Inside the protective fencing Including during fence Installation and removal. 5- See site preparation plop ,or Any modifications with the Tree Pmteet on area — Tree Protection fence: High density polyethylene fencing M 3.5. 1.5" openings: Color - orange, Steel ports installedat Soc 1'x6 steel posts or approved equal. 5" Thick layer of mulch. Maertain existing grade with the tree protect.) fence — unless otherwise e1dicat ion the Plans. REMOVE EXCESS SOIL ABOVE ROOT FLARE PRIOR TO DIGGING AT NURSERY. CORRECT IN FIELD AT PLANTING IF NECESSARY. SET TRUNK FLARE AT 1" ABOVE FINISHED GRADE REMOVE ALL GIRDLING AND ADVANTAGEOUS ROOTS ABOVE TRUNK FLARE FINISHED GRADE REMOVE ALL WIRE BASKET, BURLAP, OR SYNTHETIC MATERIALS FROM ROOTBALL (NO EXCEPTIONS). SET ROOTBALL ON COMPACTED SOIL TO PREVENT SETTLING. O ROOTBALL PREPARATION BRDG-TU-01 NTS BRDG-TU-05 RECEIVED APR 10 2017 = rolluda architects architecture planning interior design 105 S. Main Street Suite 323 Seattle, WA 98104 t: 206-624-4222 f: 206-624-4226 1MEreteee eua.0Enym. Gonm..+yer.ws Nap OMB TACOMA • SEATTLE SPOKANE - TRI-CITIES 1200 BM Avenue. Suite 1820 Seattle, WA 9810/ 206.2572425 1B 208.292.2429 FA% w,ASMoxe a® REVISION DATE Design: JM Drawn: MS Checked: CS,KC Project No. 331-16-01 Issuance CUP Submittal Date: 4/10/2017 Drawing Title LANDSCAPE DETAILS Drawing Number TL2.0 railuda architects MANUAL DRAIN VALVE EXISTING CONNECTION TO HYDRANTS TO REMAIN OPOC SCHEMATIC NTS ASPHALT, CONCRETE, MASONRY OR CRUSHED ROCK SURFACE 4 5 ISOLATION VALVES IRRIGATION MAINLINE PRESSURE REDUCING VALVE MASTER VALVE STANDARD VALVE BOX W/ LOCKING UD 1—I EXTENSIONS (AS REQUIRED) ISOLATION VALVE PVC MAINLINE, SIZE AS NECESSARY EXISTING DOUBLE CHECK VALVE ASSEMBLY EXISTING ISOLATION GATE VALVE EXISTING IRRIGATION METER EXISTING WATER SUPPLY LINE GATE VALVE PER PLAN FLANGE 2 CU. FT. OF DRAIN GRAVEL SUMP SUPPORT VALVE BOX WITH (4) BRICKS-TVP, NOTE: 1. USE TEFLON TAPE ON ALL THREADED FITTINGS, 2. REFER TO SPECIFICATIONS FOR ADDITIONAL INFORMATION. O GATE VALVE BRDG-TU-11 1 1/2" = 1'-0" PLASTIC SPRAY NOZZLE (SEE IRRIGATION PLAN) FLUSH wl FINISHED GRADE (TOP OF MULCH) IN BED AREAS FINISH GRADE POP UP SPRAY HEAD OR FLOOD BUBBLER 42, iJ i— 1/2 INCH MALE NPTx 0.400 INCH BARB ELBOW; (KB MODEL SBE-050) SWING PIPE (FLEXIBLE) 18" LENGTH BY 1/2" DIA NOTE• USE TEFLON TAPE ON ALL THREADED FIITWGS DETECT -A -TAPE IN TRENCH PVC SCH 40 TEE OR ELL SLIP x FIPT x SLIP TRACE WIRE SCH 40 PVC LATERAL INSTALL VERTICALLY AT TOP OF SLOPE TILT TOWARDS TOE BY 27' IF INSTALLED BELOW TOP OF SLOPE TILT HALFWAY BETWEEN VERTICAL AND PERPENDICULAR TO SLOPE TOE PERPENDICULAR VERTICAL TILT BACK SLIGHTLY FROM VERTICAL OPOP-UP SPRAY HEAD W/ FLEX JOINT O SPRAY HEAD ON SLOPE VB" = 1'-0" BRDG-TLL10 1' = 1'-0' 45 DEG. ELBOW 80/10EO IN-RLACE CONCRFTF, 120 LBS. MINIMUM. TYPICAL TEE PLAN VIEW FINISKCO GRADE UTILITY BOX OF LINE SEC2ION VIEW OTHRUST BLOCKING EU— • Know what's below. Call before you dig. 90 DEG. ELBOW CAPPED LINE FINISH GRADE VALVE BOX W/ EXTENSIONS. SET T ABOVE GRADE IN SHRUBS. FLUSH IN TURF. WATERPROOF WIRE CONNECTORS ON 38" LOOPED WIRES. SCH 80 UNION LATERAL, 24. MIN. TO FIRST FITRNG 8X2X18 CONC. BLOCK ONE PER CORNER (4 TOTAL) FILTER FABRIC. WRAP UP ALL SIDES ABOVE OPENINGS WASHED GRAIN ROCK SUMP. 2 CUBIC FEET MIN. REMOTE CONTROL VALVE TRUE UNION PVC BALL VALVE WITH SCH. 80 NIPPLES O REMOTE CONTROL VALVES BRDG-TU-48 NTS TOP MNNUNE SCH. 40 RISER FINISHED GRADE PAVING SECTION PER CIVIL PLANS O TRENCHING & SLEEVING BRDG-TU-12 NTS 10' DIA VALVE BOX W/ LC/CHING U0, EXTENSIONS (AS REQ'D) OUTFALL PIPE TO DRAINAGE sfgUB'fU#€ OR WATER COURSE MANUAL DRAIN VALVE PER PLAN W/ Z LONG KEY FOR :f F OPERATION SCH 40 PVC MAIN LINE TEE 80RED ELL OR TEE W//REDUCER SUPPORT VALVE BOX WITH (4) BRICKS-TYP. NOTE: USE TEFLON TAPE ON ALL THREADED FITTINGS. O MANUAL DRAIN VALVE BRDG-TU-18 1" = 1'-0' SCH 803/4" PVC ELLS W/ PVC NIPPLES IN BETWEEN 3/4" SCH 80 PVC STREET ELL W/ 6" LENGTH OF PVC PIPE WI HOLES DRILLED FOR DRAIN LINE 1/2 CU ID OF PEA GRAVEL BRDG-TU-18 VALVE BOX LID, HEAD BRAND 'J BOX' ON LID WITH 2" HIGH LETTER 10X15 STANDARD LOOP, BUNDLE. AND LABEL SPARE WIRES THAT ARE TO CONTINUE, AS OCCURS 12" WIRE CLOTH GOPHER PROTECTION SCREEN, WRAP 6" UP SIDES SET BOX 2' ABOVE GRADE AT SHRUBS. SET BOX FLUSH TO GRADE AT LAWN. TWO 6X2X16 CONCRETE BLOCK CAPS, ONE ON EACH SIDE OF — BOX SPARE WIRES THAT ARE TO TERMINATE AT THIS BOX: COIL 30• LENGTH AND I.D. TAG. WIRES TO CONTROLLER MAINLINE AS OCCURS. PEA GRAVEL -4"DEPTH O WIRE BUNDLE JUNCTION BOX BRDG-TU-78 3/4•= 1'-0" COMPACTED BACKFILL AT 85% DENSITY (SOIL BACKFILL) AT 95% DENISTY (STRUCTURAL) LATERAL LINE(S) SLEEVE(S), 2-TIMES LINE SIZE MIN. MAIN LINE(S) VALVE WIRING PIPE BED MATERIAL TO BE CLEAN AND FREE OF ROCK LARGER THAN 1/2-INCH 4" MIN. 4" MIN. FINISHED SURFACE 24' MINIMUM ELECTRIC AUTOMATIC CONTROLLER AS SPECIFIED. WALL MOUNTED BRACED PER SWEEP ELL FOR UF DIRECT MANUFACTURER (SEE 1' METAL CONDUIT IRRIGATION PLAN FOR WITH LONG SWEEP ELL LOCATION) FOR 110VPOWER 2'DIA SCH. SOURCE AS PER CONDORWIELECTRICAL CODES EV-CAB-COM CABLE IFAPPUCABLE INSTALL INALLOWAMAXIMUM OF 24 1' CONDUITWIRES PER CONDUIT O F 8 FT. COPPER11111° CONCRETE MOUNTING PAD, GROUND AS PEREXTEND B'BEYOND OUTSIDE LOCAL CODE DIMENSIONS . • NTROLLE0. SLOPE FOR RAINAGE KEEP AP O CONTROLLER WALL MOUNT BRDG-TU-09 12"=1'-0" BRDG-TU-08 NOTES: • AVOID TRENCHING WITHIN DRIPLINES. IF TRENCHING MUST OCCUR, IT SHOULD BE DONE BY HAND AND/OR WITH LOW PRESSURE WATER JET EQUIPMENT. DIMENSIONS ARE MINIMUM CLEARANCES. • ALL SLEEVING TRENCH BACKFILL MATERIAL SHALL BE CLASS 'B"OR BETTER (MAX. OF 10% PASSING NO.40 SCREEN) AND BE COMPACTED TO MIN. 95% OPTIMUM DENSITY (MODIFIED PROCTOR). • DO NOT TAPE OR BUNDLE WIRES IN SLEEVES. BRDG-TU-14 RECEIVED APR 10 2011 Community Development architecture planning interior design 105 S. Main Street Suite 32.3 Seattle, WA 98104 t: 206-624-4222 f: 206-624-4226 C46 EnPM.,. 3ewutl eqM... 44,404504 Cortmullyflsromn Ea.! LAM Sawyers Neyrow. O TACOMA • SEATTLE SPOKANE • TRI-CITIES 1200 801 Avenue, Site 1820 S•BBSe. WA 98101 2062872425 16 200.207.2429 562 R26,.e9N.m8 580 12801 EAST MARGINAL WAY SOUTH, TUKWILA, WA 98168 REVISION DATE Design: JM Drawn: MS Checked: CS, KC Project No. 331-16-01 Issuance CUP Submittal Date: 4/10/2017 Drawing Title IRRIGATION DETAILS Drawing Number TL2.1 IRRIGATION SCHEDULE CRITICAL ANALYSIS roliuda architects i WALL -MOUNTED CONTROLLER ON it SOUTH -FACING WALL - COORDINATE ELECTRICAL SUPPLY. SOUTH 128TH STREET SLEEVING UNDER EXISTING ASPHALT - USE SLEEVE OF DEFUNCT IRRIGATION SYSTEM IF POSSIBLE. 6--�dr-td-Iv'->4�'-vo 1' 21.6 16.6 28.4 POINT OF CONNECTION- SEE NOTES EXISTING CHAIN LINK FENCE, TYP. EXISTING HYDRANTS TO REMAIN, TYP. Mtn L �10 jP,_ �4.-^,kL�tit<Y; cSH"-�.^,liv- EAST MARGINAL WAY SOUTH O Know what's below. 4 Cali before you dig. IRRIGATION SYSTEM DESIGN NOTES 1. WATER PURVEYOR: WATER DISTRICT NO. 25. CONTACT INFORMATION: SHANE YOUNG, (206) 242-9547, S HAN EYOUN G(©WATEROISTRICT125. COM 2. THIS DESIGN ADDS A NEW IRRIGATION SYSTEM FOR THE AREAS AFFECTED BY CONSTRUCTION OF THE CODE REQUIRED LANDSCAPING AND SEEDED SWALE. 3. CONTRAGTOR SHALL rIBLD VERIFY ALL EXISTING IRRIOATION AND WINDOW WASHING HYDRANTS IMPACTED BY THE CONSTRUCTION OF THIS PROJECT PRIOR TO CONSTRUCTION. PROVIDE TEMPORARY WATER SUPPLY TO WINDOW WASHING HYDRANTS DURING CONSTRUCTION OF IRRIGATION SYSTEM. POINT OF CONNECTION NOTES 1. CONTRACTOR TO REUSE EXISTING 1 }" METER AND BACKFLOW PREVENTER. CONTRACTOR SHALL VERIFY EXISTING STATIC PRESSURE AT THE METER AND SUBMIT WRITTEN VERIFICATION TO THE LANDSCAPE ARCHITECT. NOTIFY THE LANDSCAPE ARCHITECT OF DISCREPANCIES GREATER THAN 5 POUNDS OF DESIGN PRIOR TO INSTALLATION OF ANY IRRIGATION EQUIPMENT. 2. CONTRACTOR TO INSTALL PRESSURE REDUCING VALVE IF REQUIRED. 3. THE SYSTEM DESIGN IS BASED ON OPERATING 1 ZONE AT A TIME USING AN EXISTING IRRIGATION METER ON A 1-1/2" SCH. 40 PVC SUPPLY LINE. CONTRACTOR SHALL FIELD VERIFY SIZE AND LOCATION. 4. NOTIFY THE OWNER IMMEDIATELY IF THE POINT OF CONNECTION ASSUMPTIONS MADE HERE DO NOT MATCH FIELD CONDITIONS. CONTROLLER NOTES SYMBOL EST L. R. CST SST e T H F SYMBOL MV• MANUFACTURER/MODEL/DESCRIPTION RAIN BIRD 1812 15 STRIP SERIES SHRUB SPRAY 12.0" POP-UP SPRINKLER WITH CO -MOLDED WIPER SEAL. SIDE AND BOTTOM INLET. 1/2' NPT FEMALE THREADED INLET. RAIN BIRD 1812 10 SERIES MPR SHRUB SPRAY 12.0" POP-UP SPRINKLER WITH CO -MOLDED WIPER SEAL. SIDE AND BOTTOM INLET. 12" NPT FEMALE THREADED INLET. MANUFACTURER/MODEL/DESCRIPTION RAIN BIRD PGA ANGLE 1", 1-1/2", 2' ELECTRIC REMOTE CONTROL VALVE, ANGLE RAIN BIRD 300-BPE GLOBE 3" 3' BRASS MASTER VALVE, WITH GLOBE CONFIGURATION. DRAIN VALVE ® PRESSURE REDUCING VALVE PRESSURE LIMITED TO 46.16 PSI BF RAINBIRD TM2-6-120V C2 6-ZONE ESP-TM2 CONTROLLER Vstve EXISTING BACKFLOW PREVENTER TO REMAIN IRRIGATION LATERAL LINE: PVC SCHEDULE 40 PVC SCHEDULE 40 IRRIGATION PIPE IRRIGATION MAINLINE: PVC SCHEDULE 40 PIPE SLEEVE: PVC SCHEDULE 40 TYPICAL PIPE SLEEVE FOR IRRIGATION PIPE. PIPE SLEEVE SIZE SHALL ALLOW FOR IRRIGATION PIPING AND THEIR RELATED COUPLINGS TO EASILY SUDE THROUGH SLEEVING MATERIAL. EXTEND SLEEVES 18 INCHES BEYOND EDGES OF PAVING OR CONSTRUCTION. GENERAL IRRIGATION NOTES PSI Generated: 30 P.O.C. NUMBER: 01 Water Source Information: FLOW AVAILABLE Water Meter Size: 30 Flow Available: PRESSURE AVAILABLE Static Pressure at POC: Elevation Change: Service Line Size: Length of Service Line: Pressure Available: DESIGN ANALYSIS Maximum Station Flow: Flow Available at POC: Residual Flow Available: Critical Station: Design Pressure: Friction Leas: Fittings Loss: Elevation Lass: Loss through Valve: Pressure Req. at Critical Station: Loss for Fittings: Loss for Main Line: Loss for POC to Valve Elevation: Loss for Backfow. Loss for Master Valve: Loss for Water Meter. Critical Station Pressure at POC: Pressure Available: Residual Pressure Available: 2017-04-07 10:30 1-1/2' 75.00 gpm 120.00 psi 5.00 ft 2' 20.00 ft 117.00 psi 28.43 gpm 75.00 01Pm 46.57 gpm 5 30.00 psi 4,84 ps 0.48 ps 0.00 ps 5.58 ps 40.91 psi 0.51 pa 5.07 ps 0.00 ps 6.50 ps 6.60 ps 0.96 ps 60.55 psi 117.00 psi 56.45 psi RECEIVED APR 10 2017 Community Development 1. ALL IRRIGATION WORK SHALL BE ACCOMPLISHED IN ACCORDANCE WITH THE WSDOT STANDARD SPECIFICATIONS FOR ROADS, BRIDGES, AND MUNICIPAL CONSTRUCTION AS REVISED OR SUPPLEMENTED BY THE SPECIAL PROVISIONS FOR THIS PROJECT. 2. NO SUBSTITUTIONS OF EQUIPMENT OR DESIGN CHANGES SHALL BE PERMITTED UNLESS APPROVED BY THE OWNER. 3. IRRIGATION LINES AND VALVES MAY BE SHOWN IN HARD SURFACE AREAS OR OUTSIDE LANDSCAPE AREAS FOR GRAPHIC CLARITY. LOCATE ALL IRRIGATION LINES IN LANDSCAPE AREAS OR IN SLEEVES UNDER PAVEMENT. 4. IRRIGATION CONTRACTOR SHALL COORDINATE INSTALLATION OF IRRIGATION CONDUIT AND SLEEVES UNDER HARD SURFACES WITH RESPECTIVE CONTRACTORS. 5. CONTRACTOR SHALL BE RESPONSIBLE FOR OBTAINING ALL TESTS, AND INSPECTIONS REQUIRED FOR THE IRRIGATION SYSTEM. 8. CALL FOR LOCATES PRIOR TO DIGGING AT 811. CONTRACTOR IS RESPONSIBLE TO VERIFY UTILITY LOCATIONS. IF UTIUTIES ARE DAMAGED IN THE COURSE OF WORK, CONTRACTOR SHALL INFORM THE OWNER AND MAKE ANY REPAIRS REQUIRED, AT NO COST TO THE OWNER. 7. ALL SLEEVING SHALL BE MARKED, SEALED AND STAKED. ALL SLEEVES SHALL BE TWICE THE SIZE OF OF THE LINE OR COMBINED LINES. MINIMUM SLEEVE SIZE SHALL BE 4-INCHES IF LOCATED UNDER ROADWAY OR DRIVE AISLE. 8. COORDINATE SLEEVING LOCATIONS WITH ELECTRICAL CONDUIT. 9. INSTALL CONCRETE THRUST BLOCKS ON MAINLINE 2-1/2" AND LARGER, FOR ALL CHANGES IN PIPE DIRECTION OVER 15-DEGREES. 10. SPLICE CONTROL WIRES WITHIN VALVE BOXES ONLY, USING 3M-DBY, OR APPROVED SPLICE KITS, AND PROVIDE A 24" EXPANSION LOOP FOR ALL CONTROL WIRES WITHIN EACH VALVE BOX 11. VALVE BOXES SHALL BE COMMERICAL -GRADE POLYETHYLENE OR HOPE AND SUITABLE FOR LIGHT DUTY APPLICATIONS. 12, INSTALLER TO ADJUST ALL ZONE CONTROL VALVES TO THE CORRECT OPERATING PRESSURE. SEE VALVE SCHEDULE FOR OPERATING PSI. 13. VERIFY AT LEAST A 15PSI DIFFERENCE BETWEEN PRS DEVICES. IF PRESSURE DIFFERENCES IS LESS THAN 15PSI, NOTIFY L.A. IMMEDIATELY. 14. CONTRACTOR SHALL HAND TRENCH IRRIGATION DITCHES WHEN WITHIN 20 FEET, OR WITHIN A DELINEATED TREE PROTECTION AREA, OF EXISTING TREES TO REMAIN. AVOID CUTTING ANY ROOTS OVER 3"-4" IN DIAMETER WITHIN THE TREE PROTECTION AREA 15. INSTALLER SHALL BE RESPONSIBLE FOR KEEPING EXACT ACCURATE NOTES AND "AS-BUILTS" FOR THE CREATION OF THE 'RECORD DRAWINGS" OF THE INSTALLED SYSTEM. 18. CONTRACTOR SHALL PROVIDE IRRIGATION MAINTENANCE THROUGH THE PLANT ESTABLISHMENT PERIOD INCLUDING WINTERIZATION(S) AND SPRING START-UP(S). 1. CONTROLLER: INSTALL NEW WALL MOUNTED CONTROLLER ON WALL OF BUILDING. PROVIDE COMBINATION LOCK FOR CABINET AND SEND COMBINATION TO SCHOOL REPRESENTATIVE. CONFIRM LOCATIONS WITH OWNER AND COORDINATE ELECTRICAL CONNECTION PRIOR TO INSTALLATION. 1.1. PROVIDE120V FROM ELECTRICAL SERVICE PER LOCAL UTILITY REQUIREMENTS AND D APPLICABLE CODES. SEE ELECTRICAL PLAN FOR MORE INFORMATION. 1.2. PROVIDE COMMUNICATION CONNECTION FROM CONTROLLER TQ MASTER VALVE. 2. PROGRAM CONTROLLER WITH TEMPORARY ESTABLISHMENT AND PERMANENT WATERING SCHEDULE. PROVIDE SCHEDULE TO OWNER. 3. CONTROL WIRE SHALL BE INSTALLED IN 2" SCH. 40 ELECTRICAL CONDUIT. PROVIDE SWEEPS OR JUNCTION BOXES AT CHANGES 04 DIRECTION. 4. INSTALL SPARE CONTROL WIRE (ORANGE COLOR) FROM CONTROLLER TO FARTHEST VALVE. VALVE SCHEDULE NUMBER MODEL 1 RAIN BIRD PGA ANGLE 2 RAIN BIRD PGA ANGLE 3 RAIN BIRD PGA ANGLE 4 RAIN BIRD PGA ANGLE 5 RAIN BIRD PGA ANGLE SIZE 1' 1-1/2" 1" TYPE SHRUB SPRAY SHRUB SPRAY SHRUB SPRAY SHRUB SPRAY SHRUB SPRAY GPM 28.86 17.77 28.43 16.55 21.58 PS 38.I10 36.60 33.83 39.54 40.91 PSI (t8 POC 57.22 52.31 57.34 56.18 60.55 PRECIP 1.40 In/h 1.34 in/h 1.40 in/h 1.321n/h 1.771n/h GRAPHIC SCALE 5 10 20 FEET M. MI NMI 1'- 10 TEE? architecture planning interior design 105 S. Main Street Suite 323 Seattle, WA 98104 t: 206-624-4222 t 206-624-4226 S.T Erg sew,e..son... Comem*Planna• am.aaoty,e Dwo 13 TACOMA • SEATTLE SPOKANE • TRI-CITIES 1200 6th Avenue. suhe 1620 Seatle. WA 98101 2062671426 ra 206.287.2429 FAX 100/000/thl.com eO REVISION DATE Design: JM Drawn: MS Checked: CS, KC Project No. 331-16-01 Issuance CUP Submittal Date: 4/10/2017 Drawing Title IRRIGATION PLAN Drawing Number TL3.0 '&Y fi '79 'a a South Wast View '2a '26 'AO '0.0 'ao 'Se 28 2.0 'td '15 a4 tie E) POLE WE b COOPERLIGHTING- STREETWORKS 'IS TRU40PXX4F ARCHITECTURAL AREA LUMINAIRE TYPE IV Uthonla Lighting WST LED P2 40K VW MVOLT WST LED, Performance package 2, wG 4000 K, visual comfort wide, MVOLT, vandal guard ' na ' 20 2.0 'ie 'la 'a1 '20 '2.1 '26 '23 '21 11 'aa 'afi 49 'J.6 '9.B 9.0 '3A '17 '9e it 'AO 63 '11 'IA '3.T '42 2.7 'f.e a7 4.a 'ST 't7 0.4 a7 '11 420 '24 ' TA '29 'Sr 'LS 1.0 '04 0.0 '0.0 '0.T 02 '0.3 'aa '42 400 WATT PULSE -START CLEAR EO-28 HORIZONTAL @URN TRU40P4F.1e5 statistics ,. Tasms�e.TTyaaa�Oan�K 6Ym4M Avy`. N.. /�R. Nay./60, yAvr//Wnh' W IIIIYi ®®W I���1111111111 RECEIVED APR 10 2011 Community Development TRES WEST C. ENGINEERS Designer SKF Date 4/5/2017 Scale Not to Scale Drawing No. LTG-01 Summary Plan view Scale - 1' - 25' RE: Landscape/Tree Inspection Conditions, D17-0061 Craig Skipton Wed 4/4/2018 10:47 AM To:Maxwell Baker <Max.Baker@TukwilaWA.gov>; cc:Jason Morse <jmorse@AHBL.com>; ALEX.CLARK@ROLLUDAARCHITECTS.COM <ALEX.CLARK@ROLLUDAARCHITECTS.COM>; Andrea Cummins <Andrea.Cummins@TukwilaWA.gov>; Meredith Sessions <MSessions@AHBL.com>; Max, Here is a revised irrigation layout that shows full irrigation spray heads that reach to the outside edge of the north planting areas along 128th Is this sufficient for your verification of the irrigation system coverage in this area? Thanks so much, Craig 10' WIDE TYPE I LANDSCAPE SOUTH 128TH STR1 1 PROPOSED TREE (PER CITY OF TUKWILA EXISTING TREE, TYF 10' WIDE TYPE I PERIMETER LANDSCAPE REQUIRED. URBAN ENVIRONMENTALIST ASSESSMENT OF 1 PROPOSED TREE SITE CONDITIONS), 9 PROPOSED SHRUBS (9 5 REQUIRED),-165.KINNIKINNICK GROIr1 EXISTING SHRUB, 7 PROPOSED (6 REQUIRED)'•'DCOVER 103 KINNIKINNICK GROUNDCOVER PROPOSED. PROPOSED. Y. 38'-7" k 58'-9„ PV CT I 1 J Craig Skipton i Senior Landscape Project Manager AHBL, Inc. I TACOMA • SEATTLE • SPOKANE • TRI-CITIES 206.267.2425 TEL 1206.658.2663 DIRECT I cskiptjaa@ahbl.com EMAIL i Send us a fiie. From: Maxwell Baker [mailto:Max.Baker@TukwilaWA.gov] Sent: Thursday, March 29, 2018 10:23 AM To: Meredith Sessions Cc: Craig Skipton; Jason Morse; ALEX.CLARK@ROLLUDAARCHITECTS.COM; Andrea Cummins Subject: Re: Landscape/Tree Inspection Conditions, D17-0061 EXISTING SIDEWALK PAT-11 Hi Meredith, After meeting with Andrea we came to the conclusion that the proposed work plan should be sufficient. However, we will need verification that the irrigation installed along the northern perimeter will be able to reach those areas that are to be planted with grass (specifically the areas on the other side of the fence along S 128th St.). Thank you for your quick responses to our correction request, let me know if you have any questions. Best, Max From: Meredith Sessions <MSessions@AHBL.com> Sent: Wednesday, March 28, 2018 12:38:27 PM To: Maxwell Baker Cc: Craig Skipton; Jason Morse; ALEX.CLARK@ROLLUDAARCHITECTS.COM Subject: RE: Landscape/Tree Inspection Conditions, D17-0061 Hi Max, Have you had a chance to check in with Andrea yet? Thanks, Meredith Sessions ( Landscape Project Manager AHBL, Inc. I TACOMA • SEATTLE • SPOKANE • TRI-CITIES 206.267.2425 TEL 1206.658.2675 DIRECT I msessions@ahbl.com EMAIL I Send us a file. From: Maxwell Baker[mailto:Max.Baker@TukwilaWA.g2d Sent: Tuesday, March 27, 2018 4:12 PM To: Meredith Sessions Subject: Re: Landscape/Tree Inspection Conditions, D17-0061 Hi Meredith, apologies but Andrea ended up being out today. I do hope to have a reply by to you by tomorrow, however. Max From: Meredith Sessions <MSessions@AHBL.com> Sent: Tuesday, March 27, 2018 11:39:31 AM To: Maxwell Baker Cc: ALEX.CLARK@ROLLUDAARCHITECTS.COM; Andrea Cummins Subject: RE: Landscape/Tree Inspection Conditions, D17-0061 Hi Max, Please see attached an exhibit showing replacement materials proposed for the Tukwila transit site, based on photos of existing conditions and extent of shade. Would this extent of planting and seeding work for you? I'll give you a call to discuss. Meredith Sessions I Landscape Project Manager AHBL, Inc. I TACOMA • SEATTLE • SPOKANE • TRI-CITIES 206.267.2425 TEL 1206.658.2675 DIRECT I msessions@ahbl.com EMAIL I Send us a file. From: Maxwell Baker[mailto:Max.Baker@TukwilaWA.gov] Sent: Wednesday, March 21, 2018 3:08 PM To: rdrew@kasselandassociates.com Cc: ALEX.CLARK@ROLLUDAARCHITECTS.COM; Andrea Cummins; Meredith Sessions Subject: Landscape/Tree Inspection Conditions, D17-0061 Hi Randy, Andrea and I spoke with you last week regarding the landscape inspection for the TSD Transportation Building, permit #D17-0061. We have compiled the following conditions that need to be addressed before approval can be granted: 1. Bare soil areas on site will need to be vegetated. In those areas where "existing vegetation" was to be retained, i.e. grass covered parking lot islands and perimeter landscaping, the landscaping will need to be returned to previous or improved state. Per King County Surface Water Design Manual D.2.1.1: Temporary and permanent cover measures shall be provided to protect all disturbed areas, including the faces of cut and fill slopes. Temporary cover shall be installed if an area is to remain unworked for more than seven days during the dry season (May 1 to September 30) or for more than two consecutive working days during the wet season (October 1 to April 30). These time limits may be relaxed if an area poses a low risk of erosion due to soil type, slope gradient, anticipated weather conditions, or other factors. Conversely, the County may reduce these time limits if site conditions warrant greater protection (e.g., adjacent to significant aquatic resources or highly erosive soils) or if significant precipitation (see Section D.2.4.2) is expected. Any area to remain unworked for more than 30 days shall be seeded or sodded, unless the County determines that winter weather makes vegetation establishment infeasible. 2. Rubble and trash along perimeter landscaping will need to be removed, especially within the perimeter landscaping area along the southern property line. 3. Please verify correct numbers of groundcovers (kinnickinnick and Oregon grape) were installed along the perimeter. Additional plants, required per plan, should be added to the bare soil areas if necessary and mulched. Please let me know if you have any questions. Best, Maxwell Baker I Assistant Planner Department of Community Development I City of Tukwila 6300 Southcenter Blvd, Suite 100 I Tukwila, WA 98188 Max.Baker@Tukwilawa.gov 1206.431.3683 Tukwila: The City of opportunity, the community of choice. 3/13/17 RECEIVED MAR 132011 Community Development Dear Department of Community Development, This letter is to voice my thoughts and concerns about the intended Tukwila School District Transportation Building # PL17- 0005: L17-0006, L17- 007 on the SW corner of 128th and E. Marginal Way. The parking lot was first built for Becker Trucking Co. employee parking. The permit mandated upkeep of the landscaping. Recently, many of the decorative bushes were removed. Several months ago I asked to have a dangerous dead cedar tree cut down on the NW corner of the lot. It took many phone calls to have it happen. I am hoping that just indigenous plants that attract birds are planted. Such a request was made at Group Health on 126th years ago and they did a great job. Other concerns are parking, traffic and noise. We were told Blue Nile Trucking would not park on the street and drive their trucks through the neighborhood, but they do anyway and it has been 1 an ongoing battle. They also work on trucks out in their parking lot late into the night and make a lot of noise. Their trucks leak some oil on the street too. I have live here since 1978 and the noise and traffic have consistantly increased. We can hear the fans from Group Health. We need strong rules to maintain a livable neighborhood. 1 have to wear earplugs to sleep. My neighbor, by the school bus lot, has 2 children that need their sleep. 126th, the next street north, is a mess and crowded with vehicles and we don't want to be subjected to the same intrusions. To conclude, I am not against the proposed maintanence building, but I hope you take my thoughts into consideration. Thank You, Brian Kennedy 12802 37th ave s Tukwila WA 98168 phone 206 243 6639 2 email graften@comcast.net 3 at* o f J auffliea Department Of Community Development AFFIDAVIT OF DISTRIBUTION I, Jaclyn Adams , HEREBY DECLARE THAT: X Notice of Application Notice of Decision X 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 mailed to each of the addresses listed/attached on this 27TH day of FEBRUARY , 2017 Project Name: Tukwila School District - Transportation Building Project Number: PL17-005 Associated File Number (s): L17-0006 & L17-0007 Mailing requested by: Max Baker Mailer's signature: / f' 63--_- W:\USERS\JACHIE\MAILINGS\FINISHED MAILINGS\AFFIDAVIT OF DISTRIBUTION - JACKIE.DOCX C1 0,l 4t) �' w AGENCY LABELS `'(v) City Clerk Office - Christy O'Flaherty PUBLIC HEARINGS/MEETINGS NEED TO GO TO CHRISTY ( ) 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.) 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SHORELINE NOD REQUIRES RETURN RECEIPT (X) Dept of Ecology, SEPA **Send Electronically Community Dev) ( ) Office of Attorney General ( ) Office of Hearing Examiner WA 98027 ( ) KC Boundary Review Board ( ) Fire District # 11 ( ) Fire District # 2 ( ) KC Wastewater Treatment Div KC Dept of Parks & Recreation (C. ) KC Assessor's Office ( ) KC Watershed Coordination WRIA 9 Section 3 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 r ``') KC Public Library System ✓C) Foster Library ( ) Renton Library ( ) Kent Library ( ) Seattle Library Section 4 SCHOOLS/LIBRARIES ( ) Westfield Mall Library .46) Tukwila School District ( ) Highline School District ( ) Seattle School District ( ) 'Renton School District ( ) Century Link ( ) Seattle City Light ( ) Puget Sound Energy ( ) Highline Water District ( ) Seattle Planning &Dev/Water Dept ( ) Comcast Section 5 UTILITIES ( ) BP Olympic Pipeline ( ) Seattle Public Utilities ( ) Val-Vue Sewer District ( ) Water District # 20 ( ) Water District # 125 ( ) City of Renton Public Works ( ) Bryn Mawr-Lakeridge Sewer/Water Dist ( ) Waste Management ( ) Cascade Water Alliance ( ) Tukwila City Departments ( ) Public Works ( ) Fire ( ) Police ( ) Finance ( ) Planning ( ) Building ( ) Parks & Rec ( ) Mayor (") City Clerk (PUBLIC HEARINGS/MEETINGS) 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 * send notice of all applications on Green/Duwamish River ( ) Duwamish River Clean Up Coalition * ( ) Muckleshoot Indian Tribe * ( ) Cultural Resources ( ) Fisheries Program ( ) Wildlife Program ( ) Duwamish Indian Tribe * ( ) People for Puget Sound * LOCAL AGENCIES ( ) Puget Sound Clean Air Agency ( ) Sound Transit/SEPA ( ) Puget Sound Regional Council ( ) Washington Environmental Council ( ) Futurewise ( ) Puget SoundKeeper ) SW KC Chamber of Commerce y** t:.�.j :.:.. e: /�V61Y. HIV\��e Vita =man *L tukwilahistsociety0tukwilahistory.orq and rcwieser@ comcast.net ( ) Seattle Times ( ) Highline Times Section 8 MEDIA ( ) South County Journal ( ) City of Tukwila Website W:\\Planning\Development Review Manual\LU Application Review Process\Public Notice Procedures\Mailing\Agency Checklist PARADA JOSE+CECYL P 3803 S 130TH ST Tukwila, WA 98168 MULLET MATTHEW D 13016 38TH AVE S Tukwila, WA 98168 PURDMON ROGER D 13020 38TH AV S Tukwila, WA 98168 AVDIV KEMAL & SULEJMANA 16803 MILITARY RD S Seatac, WA 98188 Resident 3715 S 130TH ST Tukwila, WA 98168 NGUYEN DAM+TRINH 3711 S 130TH ST Tukwila, WA 98168 SCHNEEBELI R 12923 E MARGINAL WAY S Tukwila, WA 98168 LIN XIULAN 1432 MONTEREY AVE NE Renton, WA 98056 WYBLE DAVID+MEGAN J 3836 S 130TH ST Tukwila, WA 98168 QUIROZ JASMINE 3832 S 130TH ST Tukwila, WA 98168 DE PALMA ELIZABETH 3826 S 130TH ST Tukwila, WA 98168 DELREAL JUAN 3820 S 130TH ST Tukwila, WA 98168 ALVARADO TONY 3816 SW 130TH ST Tukwila, WA 98168 BUTTERFIELD SHEILA ANN+JORD 3810 S 130TH ST Tukwila, WA 98168 NGUYEN HELEN HANG 3802 S 130TH ST Tukwila, WA 98168 CLINGMAN TIM PO BOX 88087 Seattle, WA 98138 Resident 3720 S 130TH ST Tukwila, WA 98168 EVELYN SHAWN D+KALYANA 3716 S 130TH ST Tukwila, WA 98168 SANCHEZ JULIAN 3712 S 130TH ST Tukwila, WA 98168 DAHLKE GUY 3704 S 130TH ST Tukwila, WA 98168 COOPER PAUL D 2225 S 132ND Tukwila, WA 98168 BOLTON CHERYL 12822 37TH AVE S Tukwila, WA 98168 DUNNE DENNIS M+YVONNE L P.O. BOX 69641 Tukwila, WA 98168 Resident 12812 37TH AVE S Tukwila, WA 98168 KENNEDY BRIAN P 12802 37TH S Tukwila, WA 98168 CLEAVELAND CURTIS ALLEN 16910 PLEASANT BEACH DR SE Yelm, WA 98587 Resident 3717 S 128TH ST Tukwila, WA 98168 JACKSON ANTHONY C+EVELYN U 3803 S 128TH ST Tukwila, WA 98168 RASMUSSEN CARLOS+VERONICA 3805 128TH ST Tukwila, WA 98168 ROBERTS BERNARD+MENDI S 3807 S 128TH ST Tukwila, WA 98168 GRAVES JAMES W+YVONNE C 3809 S 128TH Tukwila, WA . 98168 BLUE NILE HOLDINGS LLC 3623 6TH AVE SW Seattle, WA 98134 Resident 12633 EAST MARGINAL WAY S Tukwila, WA 98168 ERITREAN KIDISTI MARIAM ORT PO BOX 27481 Seattle, WA 98165 Resident 12607 EAST MARGINAL WAY S Tukwila, WA 98168 MARGINAL ISLAND PROPERTIES 2514 LAKE PARK DR S Seattle, WA 98144 Resident 12601 EAST MARGINAL WAY S Tukwila, WA 98168 CAMPBELL BRIE R PO BOX 869 Woodland Hills, CA 98036 Resident 3725 S 126TH ST Tukwila, WA 98168 Resident 3723 S 126T Tukwila, WA 98168 Resident 3721 S 126T Tukwila, WA 98168 CARBONATTO TINA M 3717 S 126TH ST Tukwila, WA 98168 BEUSLINCH THOMAS RL 3709 S 126TH ST Tukwila, WA 98168 PATAPOFF WILMA M 815 W MARION Aberdeen, WA 98520 Resident 3703 S 126TH ST Tukwila, WA 98168 SARANTOS GREGORY S & PETER 1415 196TH ST SE Bothell, WA 98012 QUEALEY DARRELL LEE 3714 S 128TH ST Tukwila, WA 98168 WONG JEFFREY M 1821 ROLLING-HLS AVE SE Renton, WA 98055 Resident 3720 S 128TH ST Tukwila, WA 98168 DIMOND ANNE M+SEAN C 3726 S 128TH ST Tukwila, WA 98168 Ix.C-l.S y10_ Tat( C491(1- CciM Tack IhFalVanti4 MorkT, NAME ADDRESS CITY STATE ZIP MOLA EDWIN 12608 E MARGINAL WAY S Tukwila, WA 98168 BRC FAMILY LLC 1002 39TH AVE SW STE #302 Puyallup, WA 98373 Resident 12604 40TH A Tukwila, WA 98168 LIU KENNETH+CHEATH MONICA 12608 40TH AVE S Tukwila, WA 98168 ARMSTRONG BONITA 4015 S 126TH ST Tukwila, WA 98168 LAM DAVID 24320 118TH AVE SE Kent, WA 98030 Resident 4021 S 126TH ST Tukwila, WA 98168 Resident 4027 S 126TH ST Tukwila, WA 98168 STAUDACHER ROBERT N 4020 S 128TH ST Tukwila, WA 98168 TUKWILA RENEWAL LLC 910 MARKET ST Kirkland, WA 98033 Resident 4036 S 128TH ST Tukwila, WA 98168 Resident 4040 S 128TH ST Tukwila, WA 98168 KONG WING-HO 11510 17TH AVE NE Seattle, WA 98125 Resident 12623 42ND AVE S Tukwila, WA 98168 OUYANG XIAN 12010 76TH AVE S Seattle, WA 98178 Resident 4044 S 128TH ST Tukwila, WA 98168 CHAMPA ASSOCIATION INC 6304 47TH AVE S Seattle, WA 98118 Resident 12700 40TH AVE S Tukwila, WA 98168 LIANG BAOYU 3012 S OTHELLO ST Seattle, WA 98108 Resident 12800 EAST MARGINAL WAY S Tukwila, WA 98168 TONG MY HANH THITONG MY HAN 12812 E MARGINAL WY S Tukwila, WA 98168 BOSTEDER D 21326 5TH AVE S Des Moines, WA 98198 Resident 12822 EAST MARGINAL WAY S Tukwila, WA 98168 HALL LARRY D+B BELINDA 12902 E MARGINAL WAY S Tukwila, WA 98168 HAMAD SUFIAN+ABEER 4632 NE 89TH ST Seattle, WA 98115 Resident 12910 EAST MARGINAL WAY S Tukwila, WA 98168 RIVERTON HOLDING LLC 4632 NE 89TH ST Seattle, WA 98115 Resident 4010 S 130TH ST Tukwila, WA 98168 WHITEZEL VIRGINIA M 4021 S 128TH Tukwila, WA 98168 BRENNER MICHAEL K+LISA K 4027 S 128TH ST Tukwila, WA 98168 DEMPERE JACKIE 13217 40TH AVE S Tukwila, WA 98168 CHAMBERS LILIAN K+DEXTER 4037 S 128TH ST Tukwila, WA 98168 NGUYEN KHIEM+THANH-HIEN T 4041 S 128TH ST Tukwila, WA 98168 TUCCI JACK F+REGINA M 4049 S 128TH ST Tukwila, WA 98168 EGASHIRA GREGORY I PO BOX 94485 Seattle, WA 98168 Resident 4016 S 130TH ST Tukwila, WA 98168 BRACKEN RONDA 4020 S 130TH ST Tukwila, WA 98168 WILLMORE SEAN P 4026 S 130TH ST Tukwila, WA 98168 SMITH ALICE R 4102 S 130TH ST Tukwila, WA 98168 JENSEN RANDY L+KATHY 4106 S 130TH ST Tukwila, WA 98168 SAUNDERS BYRON L+JOYCE L 4118 S 130TH ST Tukwila, WA 98168 SHUB GALE PO BOX 68249 Seattle, WA 98168 Resident 13000 EAST MARGINAL WAY S Tukwila, WA 98168 Resident 13060 EAST MARGINAL WAY S Tukwila, WA 98168 HAMAD SUFIAN+ABEER 4632 NE 89TH ST Seattle, WA 98115 ANDRIST SHERYL (ANDERSON DYLAN) 5033 36TH AVE SW Seattle, WA 98126 Resident 13017 41ST AVE S Tukwila, WA 98168 DATE BRIAN + VICKIE 4103 S 130TH Tukwila, WA 98168 WEED JACQUELINE ANN 13012 41ST AVE S Tukwila, WA 98168 BEARD CARLY JO+GARSIDE CAME 4111 S 130TH ST Tukwila, WA 98168 DIGS LLC PO BOX 80304 Seattle, WA 98108 Resident S 130TH ST Tukwila, WA 98168 TRAN KHUONG X 13011 40TH AV S Tukwila, WA 98168 MOW EL BRADLEY (MCCOMSEKY LAURA) 13023 40TH AVE S Tukwila, WA 98168 PHAM CINDY 13004 38TH LN S Tukwila, WA 98168 LE LAI V 13008 38TH LN S Tukwila, WA 98168 CABILES RUBEN & PEARL A 13012 38TH LN S Tukwila, WA 98168 RAMOS EMELY T+FONTANILLA NE 13016 38TH LN S Tukwila, WA 98168 TEGEGN DAWIT+TARIKE MUCHE 13021 38TH LN S Tukwila, WA 98168 RAMOS PRISCA+ERWIN 1301738TH LN S Tukwila, WA 98168 DOMINGO NENITA A 13013 38TH LN S Tukwila, WA 98168 GALEON MARIA LOURDES C 13009 38TH LN S Tukwila, WA 98168 HONG TAI T+HA L MAC 13005 38TH LN S Tukwila, WA 98168 FLOYD KEITH 3809 S 130TH ST Tukwila, WA 98168 Note City of Tula 3 Notice Of Application and No, of Hearing Conditional Use Permit for Tukwila School District Transportation Building # PL17-0005: L17-0006, L17-0007 Project Planner: Max Baker at 206.431.3683 or Max.Baker@Tukwilawa.gov File# PL17-0005: L17-0006, L17-0007 Applicant: Lisa Klein, AHBL Inc. Property Owner: Tukwila School District Project Location: 12801 E Marginal Way Project Description: Construction of one 2515 square foot office building for use by Tukwila School District bus drivers. Site improvements including enhancement/improvement of site landscaping to meet City of Tukwila standards are proposed as well. Your written comments on the project are requested and can be delivered to Dept. of Community Development, 6300 Southcenter Blvd, Suite 100, Tukwila WA 98188. Comments must be received by 5:00 p.m. on March 13, 2017. This project is also scheduled for a Board of Architectural Review hearing on April 27th, 2017, at 6:30 pm at the Tukwila City Hall, 6200 Southcenter Blvd., Tukwila WA 98188. You may also submit your comments at the public hearing, before the board. You may request a copy of any decision, information on hearings, and your appeal rights by contacting Max Baker at 206.431.3683 or Max.Baker@Tukwilawa.gov. City of Tukwila Notice Of Application and Notice of Hearing Conditional Use Permit for Tukwila School District Transportation Building # PL17-0005: L17-0006, L17-0007 Project Planner: Max Baker at 206.431.3683 or Max.Baker@Tukwilawa.gov File# PL17-0005: L17-0006, L17-0007 Applicant: Lisa Klein, AHBL Inc. Property Owner: Tukwila School District Project Location: 12801 E Marginal Way Project Description: Construction of one 2515 square foot office building for use by Tukwila School District bus drivers. Site improvements including enhancement/improvement of site landscaping to meet City of Tukwila standards are proposed as well. Your written comments on the project are requested and can be delivered to Dept. of Community Development, 6300 Southcenter Blvd, Suite 100, Tukwila WA 98188..Comments must be received by 5:00 p.m. on March 13, 2017. This project is also scheduled for a Board of Architectural Review hearing on April 27th, 2017, at 6:30 pm at the Tukwila City Hall, 6200 Southcenter Blvd., Tukwila WA 98188. You may also submit your comments at the public hearing, before the board. You may request a copy of any decision, information on hearings, and your appeal rights by contacting Max Baker at 206.431.3683 or Max.Baker@Tukwilawa.gov. City of Tukwila Department of Commun .evelopment 6300 Southcenter Blvd., Ste 100 Tukwila, WA. 98188 You are receiving this notice because you are a property owner or tenant within 500ft of this project. City of Tukwila Department of Community Development 6300 Southcenter Blvd., Ste 100 Tukwila, WA. 98188 You are receiving this notice because you are a property owner or tenant within 500ft of this project. AIM 111 SHANN0N&WlLsoN, INC. CALIFORNIAALASKA COLORADO GEOTECHNICAL AND ENVIRONMENTAL CONSULTANTS FLORIDA MISSOURI OREGON WASHINGTON WASHINGTON DC METRO WISCONSIN January 25, 2017 Mr. Jeff Feeney, PE KMB Architects 906 Columbia Street SW, Suite 400 Olympia, WA 98501 RE: GEOTECHNICAL EVALUATION, PROPOSED SCHOOL BUS DRIVER REST FACILITY AT SOUTH 128TH STREET AND EAST MARGINAL WAY S, TUKWILA, WASHINGTON Dear Mr. Feeney: We are pleased to present this geotechnical evaluation letter to assist in the design of the proposed School Bus Driver Rest Facility (Facility) located at South 128th Street and East Marginal Way S, Tukwila, Washington. This letter presents our geotechnical observations and recommendations, performed in accordance with our Proposal for Geotechnical Services (proposal number 21-2-63138-001) dated January 6, 2017. Our services included: • Researching existing data. • Visiting the site to evaluate surficial and subsurface conditions. • Performing engineering analyses to provide the recommendations made in this letter. SITE AND PROJECT DESCRIPTION The project site is located at the southwest corner of a school bus parking lot near the intersection of South 128th Street and East Marginal Way S, as shown in the Vicinity Map, Figure 1. A chain link fence extends along the perimeter of the parking lot. Although the parking lot is relatively flat and at an approximate elevation of 45 feet, the adjacent property to the south of the proposed project site slopes for approximately 50 feet to a topographically high elevation of approximately 65 feet. The total grade change from top to bottom of slope is about 20 feet. This slope is designated on the City of Tukwila Sensitive Areas Map as a 15 to 40 percent slope with moderate landslide potential. The base of the slope is approximately 2 to 3 feet from the south fence, where the slope toe is cut vertically and reinforced with a rock wall (rockery). The maximum height of the wall is about 3 feet at the westernmost end of the south fence. The slope is overgrown with blackberry bushes, cedar trees, and other vegetation. We 400 NORTH 34TH STREET, SUITE 100 P.O. BOX 300303 SEATTLE, WASHINGTON 98103-8636 206-632-8020 FAX: 206-695-6777 www.shannonwilson.com 21-1-22320-001 Mr. Jeff Feeney, PE KMB Architects January 25, 2017 Page 2 of 9 SHANNON Fi\ MLSON, INC. understand that construction of the Facility will remain on relatively flat grade and will not require excavation into the sloped area. Based on our conversations with you, we understand that the Facility will be a one-story, wood -framed structure, approximately 60 feet long by 40 feet wide. SITE GEOLOGY AND SUBSURFACE CONDITIONS Subsurface geological data provided by the Washington Geological Survey indicates that the project site and adjacent slope are underlain by Quaternary ice -contact deposits consisting of glacially overridden, dense silts, sands, and gravels. This material is intermittently found along the Duwamish River valley and was deposited by the last major Pleistocene glacier in the Puget Lowland, during the Vashon Stade of the Fraser Glaciation (Troost and others, 2008). We visited the site on January 13, 2017, to evaluate surficial and subsurface conditions at the proposed Facility. During our visit, we excavated three potholes with a hand shovel at the southwest corner of the parking lot. We excavated the potholes on the grass strip adjacent to the south fence, located as shown in the Site Plan, Figure 2. The potholes extended to depths of 1.5 to 2 feet below ground surface (bgs). We used a 0.5-inch-diameter, steel T-probe to evaluate the in -place density of the soil at the bases of the holes. At all holes, we observed loose to medium dense topsoil and sod with scattered cobbles, concrete, and asphalt debris to a depth of 1.5 to 2 feet bgs. This layer was underlain by dense to very dense, brown, poorly graded sand and silty sand with gravel. Based on our review of subsurface geological data, this layer consists of glacially overridden Quaternary ice -contact deposits. We observed moist soil throughout excavation, but did not encounter groundwater. Groundwater levels at the site are likely dependent on seasonal weather patterns. It is our opinion that groundwater is below the proposed building excavation. We backfilled all potholes with the excavated material following our reconnaissance. GEOTECHNICAL RECOMMENDATIONS Based on our analyses of surficial and subsurface conditions, we have made foundation and associated earthwork recommendations in the following areas: 21-1-22320-001-L 1 /wp/lkn 21-1-22320-001 Mr. Jeff Feeney, PE KMB Architects January 25, 2017 Page 3 of 9 • Foundation Type and Bearing Capacity ■ Seismic Design Criteria • Estimated Settlements • Lateral Earth Pressures ■ Footing and Wall Drainage • Floor Slab Support • Adjacent Slope Considerations • Fill Placement and Compaction • Wet Weather Earthwork and Erosion Control SHANNON 6VVILSON, INC. Foundation Type and Bearing Capacity We recommend that the Facility be supported on conventional continuous or rectangular spread footings. We recommend that the footings bear on the glacially overridden, dense to very dense sand and silty sand found at about 1.5 to 2 feet bgs. Footings that bear on this material may be designed for an allowable bearing pressure of 3,000 pounds per square foot. This allowable bearing pressure may be increased by one-third for transient wind and seismic loading. This is in accordance with the International Building Code (IBC), 2015, Section 1806 (International Code Council, 2015). Rectangular footings should have a minimum width of 24 inches and continuous footings should have a minimum width of 18 inches. The elevation difference of adjacent footings should not be greater than one-half the distance between them. Where adjoining continuous wall footings are designed at different elevations, the upper footing should be stepped down to the lower footing (this may apply if suitably dense subgrade material is located at slightly different depths during excavation). Backfill around footings should be systematically compacted in 8- to 10-inch-thick, loose lifts to a dense condition to satisfy lateral load resistance requirements. We recommend that an experienced geotechnical engineer from our office evaluate the footing subgrade prior to installation of formwork or reinforcing steel. If unsuitable soils are detected at the footing subgrade, further excavation to suitable soils should take place. If footings are to bear on competent native material that has been disturbed during the excavation process, the subgrade soils may require additional mechanical compaction prior to installation of formwork or reinforcing steel. 21-1-22320-001-LI/wp/Ikn 21-1-22320-001 Mr. Jeff Feeney, PE KMB Architects January 25, 2017 Page 4 of 9 Seismic Design Criteria SHANNON MMLSON, INC. The 2015 IBC (International Code Council, 2015) will likely be utilized as the design basis for this project. We estimated the site class at the project site based on existing subsurface data, our recent reconnaissance, and procedures outlined by the 2015 IBC. Based this data, we recommend that the Facility be classified as Site Class D. The IBC seismic design parameters are based on a maximum considered earthquake (MCE), which corresponds to ground motions with a 2 percent probability of exceedance within a 2,500-year return period. We used probabilistic seismic hazard analysis (PSHA) performed by the U.S. Geological Survey (USGS) (Peterson and others, 2008) to estimate the MCE parameters. The PSHA is a method for estimating ground motions that considers uncertainties and randomness in potential earthquake source, size, location, recurrence, and source -to -site attenuation. We used the USGS website (USGS, 2014) to obtain the PSHA results for a Site Class D condition. Based on the mapped spectral accelerations provided by the USGS and using IBC procedures corresponding to Site Class D, this area is likely to be subjected to a design peak ground acceleration of 0.40g, which is associated with a seismic event with a 2,500-year recurrence interval. The maximum considered spectral accelerations for short periods and the 1-second period are 1.50g and 0.56g, respectively. These mapped Ss and Si values near the site are shown in Table 1, and are from the probabilistic ground motion studies completed in 2008 by the USGS. The soil response coefficients FA and Fv corresponding to Site Class D are also provided in Table 1. TABLE 1 2015 INTERNATIONAL BUILDING CODE SEISMIC PARAMETERS FOR NEW STRUCTURES AND GEOTECHNICAL ANALYSES (SITE CLASS D) Return Period (years) : Magnitude PGAD' (g's) Ss (g's) Si (g's) t - FA Fv > _ S s M `(g's) S Ml (g's) D (g's) D (g's) L2,500 7 0.40 1.501 0.56 1.00 1.50 1.50 0.85 1.00 0.56 Note: PGA!) = peak ground acceleration 21-1-22320-001-L1/wp/lkn 21-1-22320-001 Mr. Jeff Feeney, PE KMB Architects January 25, 2017 Page 5 of 9 SHANNON AWILSON, INC. The project site is located about 3 to 4 miles south of the Seattle Fault Zone, considered to be an active fault structure by the USGS. However, the potential for ground surface rupture is not a design issue at the project site due to its distance to the fault zone and relatively long repeat times for fault movement. Because the site is underlain at shallow depths by dense to very dense glacially overridden material, other earthquake -induced geologic hazards such as liquefaction and slope instability caused by seismic effects are not considered design issues for this project. Estimated Settlements If footing subgrade soil is prepared in compliance with the recommendations in this letter, we expect that total footing settlements will be less than inch. Differential settlements are expected to be about one-half of total settlements between heavily loaded and lightly loaded spread footings or along a continuous footing for a distance of approximately 20 feet. It is anticipated that the majority of the estimated settlements would occur simultaneously as the loads are applied due to the granular nature of the subgrade material. Lateral Earth Pressures Lateral loads on footings may be resisted by passive soil resistance against buried portions of a foundation. Passive soil resistance against the buried portions of foundations may be calculated based on an equivalent fluid density of 300 pounds per cubic foot. This value for passive soil resistance includes a factor of safety of 1.5 on the ultimate soil strength in order to limit allowable lateral deformations. This value is based on the assumption of a horizontal surface extending beyond the footing for a distance of at least two times the depth of embedment. Passive resistance should be ignored in the upper 12 inches unless it is specifically required for lateral stability and the backfill in this zone is densely compacted structural fill. It should be ignored entirely if future development could result in removal of the soils providing lateral resistance. Footings that bear on dense, glacially overridden material may be designed using a coefficient of base friction of 0.50. Footing and Wall Drainage Moist soils were encountered in all potholes during our reconnaissance. We expect this moisture is related to rainfall infiltration. Because of the likelihood of increased seepage during winter months with high levels of precipitation, a subsurface drainage system is recommended to prevent buildup of hydrostatic pressures around the building behind footings. We recommend that footing subdrains be installed around the perimeter of the building. Footing drains should 21-1-223 2 0-001-L I /wp/lkn 21-1-22320-001 Mr. Jeff Feeney, PE KMB Architects January 25, 2017 Page 6 of 9 SHANNON 6WILSON, INC. consist of 4-inch-diameter (minimum) perforated pipe embedded in 8 inches (minimum) of washed %-inch pea gravel or washed 1/4-inch crushed rock. Recommendations regarding subdrainage and backfrlling behind walls are presented in Figure 3. Water collecting in footing drains should flow into a storm sewer in a tightline, and downspouts and surface catch basins should be connected to separate storm drain systems with tightlines. Cleanouts should be provided at convenient locations along all drain lines. The ground surface should be sloped away from the building to promote rapid runoff. Floor Slab Support We anticipate that the building floor slab for the Facility can be supported on glacially overridden soil or compacted structural backfill that will be exposed during site grading and removal of parking lot asphalt. If disturbed during excavation, the floor slab subgrade should be systematically compacted with a heavy drum roller or hoe pack. The subgrade should be evaluated by an experienced geotechnical engineer from our office to confirm that it is in a dense and unyielding condition. A 4-inch-thick layer of clean, coarse crushed rock should then be placed over the approved subgrade to serve as a capillary break between fill and the floor slab, as shown in Figure 3. The gravel should be uniformly graded (i.e., predominately of one size) and have a maximum size of 3/4 inch and less than 3 percent fines passing the .No. 200 sieve. The gravel should be compacted to a dense and unyielding condition with at least two passes of a vibrating plate compactor or smooth -drum roller. A vapor barrier consisting of 10 mil plastic sheeting should be placed on top of the capillary breakmaterials to prevent migration of moisture through the concrete slab. A modulus of subgrade reaction of 200 pounds per cubic inch should be used to design the concrete floor slab. Adjacent Slope Considerations During our site visit, we did not observe features typically associated with slope instability or creep, such as surficial cracking or significant tree deformation. The rockery wall at the toe of the slope also appeared undamaged and in good condition. Existing geological data and our site visit observations indicate that the slope is underlain by the same dense, glacially overridden soil found at shallow depths under the project site, and a section of the slope was likely excavated during the construction of the existing parking lot. We understand that construction of the proposed Facility will not include excavation of the adjacent slope. Inour opinion, the slope 21-1-22320-001-LI/wp/Ikn 21-1-22320-001 Mr. Jeff Feeney, PE KMB Architects January 25, 2017 Page 7 of 9 SHANNON VVVILSON, INC. does not require further reinforcement and does not pose a significant risk of failure, provided that the slope and rockery remain undisturbed during construction. Fill Placement and Compaction Fill around footings or under structural elements such as paved areas should consist of relatively well -graded sand or sand and gravel having a maximum particle size of about 3 inches. It should contain less than 20 percent fines (material passing the No. 200 sieve, based on the 3/4-inch minus fraction) and, during wet weather or wet conditions, it should containno more than 5 percent fines. Structural fill should not contain organics or deleterious material. All structural fill should be placed in horizontal lifts and compacted to at least 95 percent of its Modified Proctor maximum density (ASTM International D1557), and should be verified to be in a dense and unyielding condition. The thickness of loose lifts should not exceed 10 inches for heavy equipment compactors and 8 inches for hand -operated compactors. Unanticipated soil conditions are commonly encountered and cannot be fully determined by excavating potholes. Such unexpected conditions may require the Contractor to make adjustments in his procedures to attain a properly constructed project. Some contingency fund is recommended to accommodate potential extra costs related to unexpected conditions. Wet Weather Earthwork and Erosion Control Earthwork would most easily be accomplished during the normally drier months of June through mid -October. It is our opinion that earthwork performed during the wet -weather months will prove costlier. The condition of silty sand will deteriorate rapidly when exposed to moisture and construction activity, which could lead to deeper footing excavations than anticipated. The following recommendations are applicable if earthwork is to be accornplished in wet weather or in wet conditions: • Fill material should consist of clean, granular soil, of which not more than 5 percent by dry weight passes the No. 200 mesh sieve, based on wet -sieving the fraction passing the 3/4-inch sieve. The fines should be non -plastic. Such soil would need to be imported to the site. The identification of suitable wet -weather backfilling material should be made by a geotechnical engineer from our firm experienced in wet -weather construction. • The ground surface in the construction area should be sloped and sealed with a smooth -drum, vibratory roller or equivalent to promote the rapid runoff of 21-1-22320-001-L I /wp/Ikn 21-1-22320-001 Mr. Jeff Feeney, PE KMB Architects January 25, 2017 Page 8 of 9 SHANNON 6WILSON, INC. precipitation, to prevent surface water from flowing into excavations, and to prevent ponding of water. Soils that become too wet for compaction should be removed and replaced with clean granular soil. ■ Excavation and placement of structural fill material should be observed on a full-time basis by a geotechnical engineer or technician experienced in wet -weather earthwork to determine that all unsuitable materials are removed and suitable compaction and site drainage is achieved. • Contractor should cover work areas, soil stockpiles, or slopes with plastic; sloping, ditching, sumps, dewatering, and other measures should be employed as necessary to permit proper completion of the work. Bales of straw, straw wattles, and/or geotextile silt fences should be strategically located to control soil movement and erosion. The above recommendations for wet weather earthwork should be incorporated into the contract specifications. LIMITATIONS The analyses, conclusions, and recommendations presented in this letter are based on the site conditions as they presently exist and assume that the results of our site reconnaissance are representative of the subsurface conditions throughout the site; i.e., the subsurface conditions everywhere are not significantly different than those encountered during our reconnaissance. If, during construction, subsurface conditions different from those encountered during our reconnaissance are observed or appear to be present, we should be advised at once so that we can review these conditions and reconsider our recommendations where necessary. If there is a substantial lapse of time between the submission of this letter and the start of construction, or if conditions have changed due to natural causes or construction operations at or adjacent to the site, it is recommended that this letter be reviewed to determine the applicability of the conclusions and recommendations concerning the changed conditions and the time lapse. The scope of our services for this letter did not include any environmental assessment or evaluation regarding the presence or absence of wetlands or hazardous or toxic materials in the soil, surface water, groundwater, or air on or below or around this site. For any site located near a steep slope, such as the subject property, there is a potential for slope instability that could affect a structure near the slope. In addition to natural factors including earthquakes, heavy precipitation, steep topography, and soil and groundwater conditions, other 21-1-22320-001-LI /wp/Ikn 21-1-22320-001 Mr. Jeff Feeney, PE KMB Architects January 25, 2017 Page 9 of 9 SHANNON F&WILSON, INC. potential causes of instability include water leaks, pipe breaks, improper or inappropriate surface drainage, lack of maintenance of drains or vegetative cover, filling or saturation at the top of the slope or excavation at the bottom of the slope, unwise development by adjacent property owners, or other actions, events, or unknown conditions that could cause slope instability. This letter was prepared for the exclusive use of KMB Architects and their design consultants in the design of the Facility. It should be made available to prospective contractors and/or the Contractor for information on the factual data only and not as a warranty of subsurface conditions such as those discussed in this letter. The enclosed "Important Information About Your Geotechnical Report" has been prepared to assist you and others in understanding the use and limitations of our reports. Please call me at (206) 695-6875 if you have any questions regarding the recommendations in this letter. We appreciate the opportunity to be of service. Sincerely, SHANNON & WILSON, INC. Justin P.B. Cook Geotechnical Staff Martin W. Page, PE, LEG Vice President Geotechnical Engineer JPC:MWP/jpc Enc: References Figure 1 — Vicinity Map Figure 2 — Site Plan Figure 3 — Typical Wall Subdrainage and Backfill Important Information About Your Geotechnical/Environmental Report 21-1-22320-001-LI/wpan 21-1-22320-001 SHANNON 6WILSON. INC. REFERENCES International Code Council, Inc., 2015, International building code: Country Club Hills, Ill., International Code Council, Inc., 690 p. Petersen, M. D.; Frankel, A. D.; Harmsen, S. C.; and others, 2008, Documentation for the 2008 update of the national seismic hazard maps: U.S. Geological Survey Open -File Report 2008-1128, available: http://pubs.usgs.gov/of/2008/1128. Troost, K. A. and Booth, D. B., 2008, Geology of Seattle and the Seattle area, Washington, in Baum, R. L.; Godt, J. W.; and Highland, L. M., eds., Landslides and engineering geology of the Seattle, Washington, area: Bolder, Colo., Geological Society of America Reviews in Engineering Geology XX, p. 1-35. U.S. Geological Survey (USGS), 2014, U.S. seismic design maps: Available: http://earthquake.usgs.gov/designmaps/us/application.php, accessed 01, 2017. 21-1-22320-001-L1-Ref/wp/lkn 21-1-22320-001 N 0 N 0 O a 2320-001 Vi 0 0 0 M E 0 700 1400 Approximate Scale in Feet NOTE Map adapted from aerial imagery provided by Google Earth Pro, reproduced by permission granted by Google Earth TM Mapping Service. Tukwila Bus Driver Facility Tukwila, Washington VICINITY MAP January 2017 21-1-22320-001 SHANNON FNWILSON, INC. aeorecn.ma AND ENVIRONMENTAL CONEULuxrs FIG. 1 Filename: J:\211\22320\001\21-1-22320-001 Site Plan.dwg Layout: Fig 2 Date: 01-20-2017 Login: mjm J 11tstn St '11 p IV r PH-1 S 128th St PH-2 50 100 Approximate Scale in Feet NOTE Map adapted from aerial imagery provided by Google Earth Pro, reproduced by permission granted by Google Earth TM Mapping Service. PH-3 PH-1 11111111111 SEM OMNI O LEGEND Pothole Designation and Approximate Location Approximate Location of Proposed Facility as s e I!?UI.Je i�S2 or Tukwila Bus Driver Facility Tukwila, Washington January 2017 SITE PLAN 21-1-22320-001 SHANNON & WILSON, INC. Geotechnical and Environmental Consultants FIG. 2 0 0 N 0 1) 0 a) a (n a J m 0 a) 1-1-22320-001 Subd 0 csi N a) co t= Sloped to Drain away from Structure Pavement or 18" Impervious Soil Wall Backfill (See Note 1) Excavation Slope Contractor's Responsibility 8" Min. Cover of Pea Gravel (6" min. on sides of pipe; 2" below) Washed Pea Gravel/Crushed Gravel Perimeter/Subdrain Pipe MATERIALS Drainage Sand & Gravel with the Following Specifications (WSDOT 9-03.13): Sieve Size 3/4" 1/2" No. 4 No. 10 No. 50 No. 100 No. 200 (by wet sieving) 18" Min. 2" Max. % Passing by Weight 100 90 to 100 57 to 100 40 to 100 3 to 30 0 to 4 0 to 3.0 (non -plastic) SUBDRAIN PIPE NOTES 1. 4" minimum diameter perforated (perforations down) or slotted pipe; tight joints; sloped to drain (6"/100' min. slope). 2. Provide clean -outs. 3. Perforated pipe holes (3/16" to 3/8" dia.) to be in lower half of the pipe with lower quarter segment unperforated for water flow. 4. Slotted pipe to have 1/8" maximum width slots. 5. Pipe crown should be at least as low as the top of the footing. Below -Grade Wall /� Drainage Sand & Gravel or Geocomposite /Drain Board if Casting Wall Directly Against Temporary Shoring Wall Damp Proofing Floor Slab Q , o e ' o ao. 4" Min. Washed Pea Gravel / Crushed Gravel for Capillary Break or clean, Crushed Rock for Working Surface Not to Scale — 4" Min Vapor Retarder (See Note 4) t/-- NOTES 1. Structural fill behind wall should consist of free -draining granular soil with no more than 5% fines, by weight, passing No. 200 sieve based on wet sieving the minus 3/4" fraction, fines to be non -plastic. 2. Backfill behind wall should be compacted with hand -operated vibrating plate compactor (not a tamper). Heavy equipment should not be operated near the wall as such equipment could increase lateral earth pressures and possibly damage the wall. 3. All backfill should be placed in layers not exceeding 8" loose thickness and densely compacted. Beneath paved or sidewalk areas, compact to at least 95% Modified Proctor maximum density (ASTM: D1557-70 Method C). Otherwise compact to 92% minimum. 4. A vapor retarder should be placed on top of the capillary break material where floors are covered with carpet, linoleum, or other floor covers. Tukwila Bus Driver Facility Tukwila, Washington TYPICAL WALL SUBDRAINAGE AND BACKFILL January 2017 21-1-22320-001 SHANNON & WILSON, INC. Geotechnical and Environmental Consultants FIG. 3 - II ISHANNON & WILSON, INC. Attachment to and part of Report 21-1-22320-001 Geotechnical and Environmental Consultants Date: January 25, 2017 To: Mr. Jeff Feeney, PE KMB Architects IMPORTANT INFORMATION ABOUT YOUR GEOTECHNICAL/ENVIRONMENTAL REPORT CONSULTING SERVICES ARE PERFORMED FOR SPECIFIC PURPOSES AND FOR SPECIFIC CLIENTS. Consultants prepare reports to meet the specific needs of specific individuals. A report prepared for a civil engineer may not be adequate for a construction contractor or even another civil engineer. Unless indicated otherwise, your consultant prepared your report expressly for you and expressly for the purposes you indicated. No one other than you should apply this report for its intended purpose without first conferring with the consultant. No party should apply this report for any purpose other than that originally contemplated without first conferring with the consultant. THE CONSULTANT'S REPORT IS BASED ON PROJECT -SPECIFIC FACTORS. A geotechnical/environmental report is based on a subsurface exploration plan designed to consider a unique set of project -specific factors. Depending on the project, these may include: the general nature of the structure and property involved; its size and configuration; its historical use and practice; the location of the structure on the site and its orientation; other improvements such as access roads, parking lots, and underground utilities; and the additional risk created by scope -of -service limitations imposed by the client. To help avoid costly problems, ask the consultant to evaluate how any factors that change subsequent to the date of the report may affect the recommendations. Unless your consultant indicates otherwise, your report should not be used: (1) when the nature of the proposed project is changed (for example, if an office building will be erected instead of a parking garage, or if a refrigerated warehouse will be built instead of an unrefrigerated one, or chemicals are discovered on or near the site); (2) when the size, elevation, or configuration of the proposed project is altered; (3) when the location or orientation of the proposed project is modified; (4) when there is a change of ownership; or (5) for application to an adjacent site. Consultants cannot accept responsibility for problems that may occur if they are not consulted after factors which were considered in the development of the report have changed. SUBSURFACE CONDITIONS CAN CHANGE. Subsurface conditions may be affected as a result of natural processes or human activity. Because a geotechnical/environmental report is based on conditions that existed at the time of subsurface exploration, construction decisions should not be based on a report whose adequacy may have been affected by time. Ask the consultant to advise if additional tests are desirable before construction starts; for example, groundwater conditions commonly vary seasonally. Construction operations at or adjacent to the site and natural events such as floods, earthquakes, or groundwater fluctuations may also affect subsurface conditions and, thus, the continuing adequacy of a geotechnical/environmental report. The consultant should be kept apprised of any such events, and should be consulted to determine if additional tests are necessary. MOST RECOMMENDATIONS ARE PROFESSIONAL JUDGMENTS. Site exploration and testing identifies actual surface and subsurface conditions only at those points where samples are taken. The data were extrapolated by your consultant, who then applied judgment to render an opinion about overall subsurface conditions. The actual interface between materials may be far more gradual or abrupt than your report indicates. Actual conditions in areas not sampled may differ from those predicted in your report. While nothing can be done to prevent such situations, you and your consultant can work together to help reduce their impacts. Retaining your consultant to observe subsurface construction operations can be particularly beneficial in this respect. Page 1 of2 1/2017 A REPORTS CONCLUSIONS ARE PRELIMINARY. The conclusions contained in your consultant's report are preliminary because they must be based on the assumption that conditions revealed through selective exploratory sampling are indicative of actual conditions throughout a site. Actual subsurface conditions can be discerned only during earthwork; therefore, you should retain your consultant to observe actual conditions and to provide conclusions. Only the consultant who prepared the report is fully familiar with the background information needed to determine whether or not the report's recommendations based on those conclusions are valid and whether or not the contractor is abiding by applicable recommendations. The consultant who developed your report cannot assume responsibility or liability for the adequacy of the report's recommendations if another party is retained to observe construction. THE CONSULTANTS REPORT IS SUBJECT TO MISINTERPRETATION. Costly problems can occur when other design professionals develop their plans based on misinterpretation of a geotechnical/environmental report. To help avoid these problems, the consultant should be retained to work with other project design professionals to explain relevant geotechnical, geological, hydrogeological, and environmental findings, and to review the adequacy of their plans and specifications relative to these issues. BORING LOGS AND/OR MONITORING WELL DATA SHOULD NOT BE SEPARATED FROM THE REPORT. Final boring logs developed by the consultant are based upon interpretation of field logs (assembled by site personnel), field test results, and laboratory and/or office evaluation of field samples and data. Only final boring logs and data are customarily included in geotechnical/environmental reports. These final logs should not, under any circumstances, be redrawn for inclusion in architectural or other design drawings, because drafters may commit errors or omissions in the transfer process. To reduce the likelihood of boring log or monitoring well misinterpretation, contractors should be given ready access to the complete geotechnical engineering/environmental report prepared or authorized for their use. If access is provided only to the report prepared for you, you should advise contractors of the report's limitations, assuming that a contractor was not one of the specific persons for whom the report was prepared, and that developing construction cost estimates was not one of the specific purposes for which it was prepared. While a contractor may gain important knowledge from a report prepared for another party, the contractor should discuss the report with your consultant and perform the additional or alternative work believed necessary to obtain the data specifically appropriate for construction cost estimating purposes. Some clients hold the mistaken impression that simply disclaiming responsibility for the accuracy of subsurface information always insulates them from attendant liability. Providing the best available information to contractors helps prevent costly construction problems and the adversarial attitudes that aggravate them to a disproportionate scale. READ RESPONSIBILITY CLAUSES CLOSELY. Because geotechnical/environmental engineering is based extensively on judgment and opinion, it is far less exact than other design disciplines. This situation has resulted in wholly unwarranted claims being lodged against consultants. To help prevent this problem, consultants have developed a number of clauses for use in their contracts, reports, and other documents. These responsibility clauses are not exculpatory clauses designed to transfer the consultant's liabilities to other parties; rather, they are definitive clauses that identify where the consultant's responsibilities begin and end. Their use helps all parties involved recognize their individual responsibilities and take appropriate action. Some of these definitive clauses are likely to appear in your report, and you are encouraged to read them closely. Your consultant will be pleased to give full and frank answers to your questions. The preceding paragraphs are based on information provided by the ASFE/Association of Engineering Firms Practicing in the Geosciences, Silver Spring, Maryland Page 2 of 2 1/2017 ..n,i u;,0, • /u Sri tsr a ,),t�,i r u- 3460 5 148th Suite 100 Seattle, WA 98168 rc1JIB 1c11 Phone: (206) 242-3236 t . Fax: (206) 242-1527 Rec. No. 00553604 CERTIFICATE OF SEWER AVAILABILITY / NON AVAILABILITY Residential: $ 50.00 Commercial: $100.00 (:1 Certificate of Sewer Availability OR C Certificate of Sewer Non -Availability Part A: (To Be Completed By Applicant ) Purpose of Certificate: • Building Permit ■ Preliminary Plat or PUD • Short Division ❑ Rezone p Other Conditional Use Permit Proposed Use: ■ Commercial • Residential Single Family • Residential Multi -Family MI Other Transportation Facility Applicant's Name Tukwila School District Phone Number 2069018000 Property Address S. 128th St & East Marginal Way S. Tukwila WA 98168 Tax Lot Number 2384200010 Legal Description (Attach Map and legal Description if Necessary ); (Vicinity map with legal description attached on page 3) P rt B: (To be Completed by Sewer Agency ) 1 a. A Sewer Service will be provided by side sewer connection only to an existing 6 size sewer O feet from the site and the sewer system has the capacity to serve the proposed use. b. Sewer service will require an improvement to the sewer system of: OR ■ • (1) feet of sewer trunk or lateral to reach the site; and/or • (2) The construction of a collection system on the site and/or ■ (3) Other (describe) 2. Must C, OR 0 be completed if 1. b above is checked a. The sewer system improvement is in conformance with a County approved sewer comprehensive plan, b. The sewer system improvement will require a sewer comprehensive amendment. 3. Ca. OR C a. The proposed project is within the corporate limits of the District, or has been granted Boundary Review Board approval for extension of service outside the District. Annexation or BRB approval will be necessary to provide service. 4. Service a. b. c. I hereby from the By is subject to the following; Permit $ District Connection Charges due to connection: prior GFC: $ SFC: $ Unit: $ Total $ (Subject to Change on January 1st) Either a King County/METRO Capacity Charge, SWSSD or Midway Sewer District Connection Charge may be due upon connection to sewers. Easements: ■ Required ■ May be Required Other Ch .+ ✓9-e. S fv .tic r.:• r .r, i h 6 e1 0,74' 741%, e Sri C ro h n reV is n certify that the above sewer agency information is true. This certification shall be valid for one year date of signature. /0 7-Title SS /ri .9,C �. fz / Date J//3/Zo/ 3 ATTACHMENT TO VALLEY VIEW SEWER DISTRICT CERTIFICATE OF SEWER AVAILABILITY/NON-AVAILABILITY The following terms and conditions apply to the attached Valley View Sewer District ("District") Certificate of Sewer Availability/Non Availability ("Certificate") 1. This certificate is valid only for the real property referenced herein ("Property") which is in the District's service area, for the sole purpose of submission to the King County Department of Development and Environmental Services, King County Department of Public Health, City of Seattle, City of Tukwila, City of Burien and/or City of SeaTac. This certificate is between the District and the applicant only and no third person or party shall have any rights hereunder whether by agency, third -party beneficiary principles or otherwise. 2. This Certificate creates no contractual relationship between the District and the applicant and its successors and assigns and does not constitute and may not be relied upon as the District's guarantee that sewer service will be available at the time the applicant may apply to the District for such service. 3. As of the date of the District's signature on this Certificate, the District represents that sewer service is available to the Property through sewer systems that exist or that may be extended by the applicant. The District makes no other representations, express or implied, including without limitation that the applicant will be able to obtain the necessary permits, approvals and authorizations from King County, City of Seattle, City of Tukwila, City of Burien, City of Seatac or any other governmental agency before the applicant can utilize the sewer service which is the subject of this Certificate. 4. If the District or the applicant must extend the District's sewer system to provide sewer service to the Property, the District or applicant may be required to obtain from the appropriate governmental agency the necessary permits, approvals and authorizations. In addition, the governmental agency may establish requirements that must be satisfied as a condition of granting any such permits, approvals or authorizations, which may make impractical or impossible the provision of sewer services to the Property. 5. Application for and possible provision of sewer service to the Property shall be subject to and conditioned upon availability of sewer service to the Property at the time of such application, and compliance with federal, state, local and District laws, ordinances, policies, and/or regulations in effect at the time of such application. I acknowledge that I have received the Certificate of Sewer Availability/Non -Availability and this attachment, and fully understand the terms and conditions herein. Applicant's signature Date ATTACHMENT TO VALLEY VIEW SEWER DISTRICT CERTIFICATE OF SEWER AVAILABILITY/NON-AVAILABILITY The following terms and conditions apply to the attached Valley View Sewer District ("District") Certificate of Sewer Availability/Non Availability ("Certificate") 1. This certificate is valid only for the real property referenced herein ("Property") which is in the Districts service area, for the sole purpose of submission to the King County Department of Development and Environmental Services, King County Department of Public Health, City of Seattle, City of Tukwila, City of Burien and/or City of SeaTac. This certificate is between the District and the applicant only and no third person or party shall have any rights hereunder whether by agency, third -party beneficiary principles or otherwise. 2. This Certificate creates no contractual relationship between the District and the applicant and its successors and assigns and does not constitute and may not be relied upon as the Districts guarantee that sewer service will be available at the time the applicant may apply to the District for such service. 3. As of the date of the Districts signature on this Certificate, the District represents that sewer service is available to the Property through sewer systems that exist or that may be extended by the applicant. The District makes no other representations, express or implied, including without limitation that the applicant will be able to obtain the necessary permits, approvals and authorizations from King County; City of Seattle, City of Tukwila, City of Burien, City of Seatac or any other governmental agency before the applicant can utilize the sewer service which is the subject of this Certificate. 4. If the District or the applicant must extend the District's sewer system to provide sewer service to the Property, the District or applicant may be required to obtain from the appropriate governmental agency the necessary permits, approvals and authorizations. In addition, the governmental agency may establish requirements that must be satisfied as a condition of granting any such permits, approvals or authorizations, which may make impractical or impossible the provision of sewer services to the Property. 5. Application for and possible provision of sewer service to the Property shall be subject to and conditioned upon availability of sewer service to the Property at the time of such application, and compliance with federal, state, local and District laws, ordinances, policies, and/or regulations in effect at the time of such application. 1 acknowledge that I have received the Certificate of Sewer Availability/Non -Availability and this attachment, and fully understand the terms and conditions herein. Applicants signature Date 01/03/2017 r- r City tlukwila Department of Community Trevel Amen, 6300 Southcenter Boulevard, Suite #100 Tukwila, Washington 98188 Phone: 206-431-3670 Web site: http://www.TukwilaWA.pv Part A: To be 4nmpleted by applicant Site address (attach map and legal description showing hydrant location and size of main): S. 1 28th St and East Marginal Way S. Tukwila WA 98168. Parcel No. 2384 200010 z i Owner Informat on Name: TukwilalSchool District Agent/Contact Person ,Name: Lisa Klein Address: 4640 144th St, Tukwila, WA 98168 Address: 2215 N. 30th St. , Suite 300, Tacoma, WA 98403 Phone: (206) 901-8000 Phone: (253) 383-2422 This certificate is for the purposes of: ❑ Residential Building Permit 0 Commercialiindustrial Building Permit ❑ Preliminary Plat ❑ Short Subdivision ❑ Rezone ® Other Conditional Use Permit Estimated number of service connections and water meter size(s)One connection and an estimated 2" domestic service and 2" meter, Vehicular distan4 from nearest hydrant to the closest point of structure is Approx. 230 ft, New private hydrant will be added. Area is served by (Water Utility District): King County WD 1 2 5 (agent) Jan. 13, 2017 Owner/Agent Signature Date Part B: To be completed by water utility district 1. The proposed project is within i.l rty C _:::.ty} 2. ❑ No irtrprovernents required. 3. The improvements required to upgrade the water system to bring it into compliance with the utilities' comprehensive etcf::;_ minimum flow requirements of the project before connection and to meet the State cross connection control requirements: -lam 5)C t -I it 1 'C 4135s.Am`1*-$ prs (Use soprani sheet j/ more room is needed) 1 4. Based uponithe improvements listed above, water can be provided and will be available at the site with a flow of residual fork duration of 2 hours at a velocity of _ , fps as documented by the attached calculations. 5. Water'availbility: ❑ Aeccptable service can be provided to this project Rce'eptable service cannot be provided to this project unless the improvements in Item B-3 are met. System is not capable of providing service to this project. I hereby certify that the above information is true and correct. V Agency/Phone 3 2, � 1��� By Exprize_6_17_1t) ti ci�lilib The following terns and conditions apply to the attached Certificate of Availability ("Certificate') 1. This Certificate of Water Availability is valid only for the real property referenced herein for the sole purpose of submission to the.City of Tukwila ("City"), This Certificate is issued at the request of the City and is not assignable or transferable to any other party. Further, no third person or party shall have any rights hereunder whether by agency or as a third party beneficiary or otherwise. 2. The District makes no representations, expressed or implied, the applicant will be able to obtain the necessary permits, approvals and authorization from the City or any other applicable land use jurisdiction or governmental agency necessary before applicant can utilize the utility service which is the subject of this Certificate. 3. As of the date of the issuance of this Certificate, the District has water available to provide utility service to the real property which is the subject of this Certificate, and the utility systems exist or may be extended by the applicant to provide service to such property. However, the issuance of this Certificate creates no contractual relationship between the District and the applicant or the City, and the issuance of this Certificate may not be relied upon and does not constitute the District's guarantee that water utility service will be available to the real property at the time the applicant may apply to the District for such service. 4. Application for and the possible provision of District utility service to the real property which is the subject of this Certificate shall be subject to and conditioned upon the availability of water service to the real property at the time of such application, as well as all application for utility service, including conservation, water restrictions, and other policies and regulation then in effect. Applicant's Sign District Representative Date l% p/7 DateJ-17-( 7 TACOMA • SEATTLE Technical Information Report PREPARED FOR: Tukwila School District 4640 South 128th Street Tukwila, WA 98168 PROJECT: Tukwila Public Schools Transportation Building 3807 South 128th Street Tukwila, WA 98168 2160789.10 PREPARED BY: Jared McDonald, EIT Project Engineer REVIEWED BY: Douglas G. Tapp, PE Principal DATE: January 2017 Civil Engineers • Structural Engineers • Landscape Architects • Community Planners • Land Surveyors • Neighbors 01/25/2017 I hereby state that this Technical Information Report for Tukwila Public Schools Transportation Building has been prepared by me or under my supervision, and meets the standard of care and expertise that is usual and customary in this community for professional engineers. I understand that City of Tukwila does not and will not assume liability for the sufficiency, suitability, or performance of drainage facilities prepared by me. Technical Information Report PREPARED FOR: Tukwila School District 4640 South 128th Street Tukwila, WA 98168 PROJECT: Tukwila Public Schools Transportation Building 3807 South 128th Street Tukwila, WA 98168 2160789.10 PREPARED BY: Jared McDonald, EIT Project Engineer REVIEWED BY: Douglas G. Tapp, PE Principal DATE: January 2017 Table of Contents 1.0 Project Overview 1-1 1.1 Purpose and Scope 1-1 1.2 Existing Conditions 1-1 1.3 Developed Conditions 1-1 Section 1.0 Figures Figure 1-1 TIR Worksheet (to be completed) Figure 1-2...Site Vicinity Map Figure 1-3a Existing Conditions Map Figure 1-3b Developed Conditions Map Figure 1-4 Soils Map 2.0 Conditions and Requirements Summary 2-1 2.1 Conditions of Approval 2-1 2.2 Core Requirements 2-1 2.2.1 CR 1 — Discharge at the Natural Location 2-1 2.2.2 CR 2 — Offsite Analysis 2-1 2.2.3 CR 3 — Flow Control 2-1 2.2.4 CR 4 — Conveyance System 2-1 2.2.5 CR 5 — Erosion and Sediment Control 2-2 2.2.6 CR 6 — Maintenance and Operations 2-2 2.2.7 CR 7 — Financial Guarantees and Liability 2-2 2.2.8 CR 8 —Water Quality 2-2 2.2.9 CR 9 — Flow Control BMPs 2-2 2.3 Special Requirements 2-2 2.3.1 SR 1 — Other Adopted Area -Specific Requirements 2-2 2.3.2 SR 2 — Floodplain/Floodway Delineation 2-3 2.3.3 SR 3 — Flood Protection Facilities 2-3 2.3.4 SR 4 — Source Controls 2-3 2.3.5 SR 5 — Oil Control 2-3 Section 2.0 Figures Figure 2-1 Flood Insurance Rate Map 53033C0960 F 3.0 Offsite Analysis 3-1 4.0 Flow Control, Low Impact Development (LID), and Water Quality Facility Analysis and Design 4-1 4.1 Flow Control 4-1 Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 4.1.1 Existing Site Hydrology (Part A) 4-1 4.1.2 Developed Site Hydrology (Part B) 4-1 4.1.3 Performance Standards (Part C) 4-1 Area -Specific Flow Control Facility Standard 4-1 Flow Control BMP Requirements 4-1 Perforated Roof Drain for Connection 4-2 Conveyance System Capacity Standards 4-2 4.1.4 Flow Control System (Part D) 4-2 4.1.5 Water Quality System (Part E) 4-2 Section 4.0 Figures Figure 4-1 Existing Hydrology Conditions Figure 4-2 Developed Hydrology Conditions 5.0 Conveyance System Analysis and Design 5-1 Section 5.0 Figures Figure 5-1 Conveyance Basin Map (to be provided) Figure 5-2 Summary Table (to be provided) Figure 5-3 KCRTS Flow Calculations (to be provided) Figure 5-4 KCBW Calculations (to be provided) 6.0 Special Reports and Studies 6-1 6.1 Geotechnical Report 6-1 Section 6.0 Figures Figure 6-1 Geotechnical Report 7.0 Other Permits 7-1 8.0 CSWPPP Analysis and Design 8-1 8.1 ESC Plan Analysis and Design (Part A) 8-1 8.1.1 Sensitive Area Restrictions 8-1 8.1.2 Sensitive Area Special Provisions 8-1 8.1.3 ESC Maintenance 8-2 8.1.4 ESC Supervisor 8-2 8.1.5 Documentation 8-2 8.1.6 Review Timing 8-2 8.2 Stormwater Pollution Prevention and Spill (SWPPS) Plan Design (Part B) 8-2 8.2.1 Pollution and Spill Prevention Source Controls and BMPs 8-3 Technical' Information Report Tukwila Public Schools Transportation Building 2160789.10 ii A 8.2.2 Responsible Personnel and Contact Information 8-4 8.2.3 Pollution and Spill Prevention Worksheets 8-5 8.2.4 Disposal Methods 8-5 Section 8.0 Figures Figure 8-1...ESC and SWPPS Measures (to be included) Figure 8-2 ESC Maintenance Report (to be included) Figure 8-3 Pollution Prevention Inspection Reports, Spill Prevention Monitoring, and Spill Incident Reports (to be included) 9.0 Bond Quantities, Facility Summaries, and Declaration of Covenant 9-1 Section 9.0 Figures - Figures to be provided, if required. 10.0 Operations and Maintenance Plan 10-1 10.1 Facility Descriptions 10-1 Conveyance Systems 10-1 Vegetated Swales 10-1 10.2 Maintenance Tasks 10-1 10.3 Maintenance Requirements 10-1 Section 10.0 Figures - Figures to be provided 11.0 Conclusion 11-1 Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 A wo� Section 1 Project Overview Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 A 1.0 Project Overview 1.1 Purpose and Scope This report accompanies the civil engineering plans and documents for the Tukwila Public Schools Transportation Building located at Parcel No. 2384200010 in King County, Washington. The parcel is approximately 1.41 acres in total size and the area to be redeveloped is approximately 0.11 acre. See Figure 1-2 for a Site Vicinity Map. The project proposes to sawcut and demolish approximately 0.10 acre of existing pavement in the southwest corner of the existing parking lot. New site improvements include a new transportation building, new parking stalls, and landscaping, and supporting water, fire, and sewer utilities. Stormwater will be addressed by directing roof runoff to an existing swale along the south and east edges of the project area. The existing swale will be reestablished and refreshed to accommodate new roof drain flows to the swale. The stormwater from the replaced pavement in the parking lot will flow to existing storm catch basins, STCBs 1685 and 1686 that drain to the existing stormwater pond. Stormwater management is to comply with the 2016 King County Surface Water Design Manual (KCSWDM) as adopted by City of Tukwila. 1.2 Existing Conditions The existing site is developed with an asphalt -paved parking lot, mature landscaping along the boundary of the property, and a detention pond located at the northeast corner of the parcel. Access to the site is from two driveways along South 128ih Street. The site has roughly 11 feet of fall across the developed portion of the site, with the highest point along the southern boundary at roughly 50 feet, and the lowest point along the northern boundary at roughly 39 feet. The site also has a steep slope that is located at the southeast corner of the site that flows into a swale along the south and west boundary of the site. Stormwater runoff from the project site sheet flows north toward two catch basins, STCBs 1685 and 1686. The landscaped area south of the project site sheet flows to an existing swale that connects to an area drain located along the east boundary of the site; see Figure 1-3a, Existing Conditions Map. All three structures connect and discharge into the detention pond located at the northeast corner of the site; therefore, the project site is part of a singular Threshold Discharge Area (TDA1). According to the King County Soil Survey (Figure 1-4), the site soils consist of Quaternary ice - contact deposits. 1.3 Developed Conditions The project proposes to redevelop the southwest corner of the parcel. Development includes demolishing the existing asphalt and curbs, and installing a new transportation building and replacing the asphalt along the north edge of the new building. The site development also includes new striping for parking stalls, landscaping, and installing supporting storm, water, fire, and sewer utilities for the new building. The project site area is 5,150 square feet, with 4,500 square feet of new and replaced impervious area, which is delineated on Figure 1-3b, Developed Conditions Map. The replaced impervious surface created is less than 5,000 square feet, providing exemption from Core Requirement 3: Flow Control Facilities. Stormwater runoff from the roof will daylight to the swale located to the south of the new building. The swale travels along the south and east edges of the project area and discharging to an area drain along the eastern fence line. Replaced asphalt surrounding the Technical Information Report Tukwila Public Schools Transportation Building 2160789..10 1-1 DWB� site will continue to sheet flow to existing catch basins, STCBs 1685 and 1686. The area drain located within the swale connects to STCBs 1685 and 1686, which then discharges into the existing detention pond located at the northeast corner of the site. The existing detention pond discharges to the city storm system within South 128th Street. Stormwater improvements will include reestablishing and refreshing the existing swale along the southern and eastern property line. The project site's developed drainage patterns are analyzed and discussed in further detail in Section 4.0, Flow Control, Low Impact Development (LID), and Water Quality Facility Analysis and Design. Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 1-2 A Section 1.0 Figures Figure 1-1....TIR Worksheet (to be completed) Figure 1-2 Site Vicinity Map Figure 1-3a Existing Conditions Map Figure 1-3b Developed Conditions Map Figure 1-4 Soils Map Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 FIGURE 1-1 KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL TECHNICAL INFORMATION REPORT (TIR) WORKSHEET Part 1 PROJECT OWNER AND PROJECT ENGINEER Project Owner Phone Address Project Engineer Company Phone Part 3 TYPE OF PERMIT APPLICATION ❑ Landuse (e.g.,Subdivision / Short Subd. / UPD) ❑ Building (e.g.,M/F / Commercial / SFR) ❑ Clearing and Grading ❑ Right -of -Way Use ❑ Other Part 2 PROJECT LOCATION AND DESCRIPTION. Project Name DPER Permit # Location Township Range Section Site Address Part 4 OTHER REVIEWS AND PERMITS ❑ DFW HPA ❑ COE 404 ❑ DOE Dam Safety ❑ FEMA Floodplain ❑ COE Wetlands ❑ Other ❑ Shoreline Management ❑ Structural RockeryNault/ ❑ ESA Section 7 Part 5 PLAN AND REPORT INFORMATION Technical Information Type of Drainage Review (check one): Date (include revision dates): Date of Final: Report ❑ Full ❑ Targeted ❑ Simplified ❑ Large Project CI Directed Site Improvement Plan Type (check one): Date (include revision dates): Date of Final: Plan (Engr. Plans) ❑ Full ❑ Modified ❑ Simplified Part 6 SWDM ADJUSTMENT APPROVALS Type (circle one): Standard / Experimental / Blanket Description: (include conditions in TIR Section 2) Approved Adjustment No. Date of Approval: 2016 Surface Water Design Manual 1 4/24/2016 KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL TECHNICAL INFORMATION REPORT (TIR) WORKSHEET Part 7 MONITORING REQUIREMENTS Monitoring Required: Start Date: Yes / No Describe: Completion Date: Re: KCSWDM Adjustment No. Part 8 SITE COMMUNITY AND DRAINAGE BASIN Community Plan : Special District Overlays: Drainage Basin: Stormwater Requirements: Part 9 ONSITE AND ADJACENT SENSITIVE AREAS ❑ River/Stream ❑ Lake ❑ Wetlands ❑ Steep Slope ❑ Erosion Hazard ❑ Landslide Hazard ❑ Closed Depression ❑ Coal Mine Hazard ❑ Floodplain ❑ Seismic Hazard ❑ Other ❑ Habitat Protection Part 10 SOILS Soil Type Slopes Erosion Potential ❑ High Groundwater Table (within 5 feet) ❑ Sole Source Aquifer ❑ Other ❑ Seeps/Springs ❑ Additional Sheets Attached 2016 Surface Water Design Manual 4/24/2016 2 KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL TECHNICAL INFORMATION REPORT (TIR) WORKSHEET Part 11 DRAINAGE DESIGN LIMITATIONS REFERENCE ❑ Core 2 — Offsite Analysis ❑ Sensitive/Critical Areas ❑ SEPA ❑ LID Infeasibility LI Other LIMITATION / SITE CONSTRAINT ❑ Additional Sheets Attached Part 12 TIR SUMMARY SHEET (provide one TIR Summary Sheet per Threshold Discharge Area) Threshold Discharge Area:. (name or description) Core Requirements (all 8 apply): Discharge at Natural Location Number of Natural Discharge Locations: Offsite Analysis Level: 1 / 2 / 3 dated: Flow Control (include facility Level: 1 / 2 / 3 or Exemption Number summary sheet) Flow Control BMPs Conveyance System Spill containment located at: Erosion and Sediment Control / CSWPP/CESCL/ESC Site Supervisor: Construction Stormwater Contact Phone: Pollution Prevention After Hours Phone: Maintenance and Operation Responsibility (circle one): Private / Public If Private, Maintenance Log Required: Yes / No Financial Guarantees and Provided: Yes / No Liability Water Quality (include facility Type (circle one): Basic / Sens. Lake / Enhanced Basic / Bog summary sheet) or Exemption No. Landscape Management Plan: Yes / No Special Requirements (as applicable): Area Specific Drainage Type: CDA / SDO / MDP / BP / LMP / Shared Fac. / None Requirements Name: Floodplain/Floodway Delineation Type (circle one): Major / Minor / Exemption / None 100-year Base Flood Elevation (or range): Datum: Flood Protection Facilities Describe: 2016 Surface Water Design Manual 3 4/24/2016 KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL li TECHNICAL INFORMATION REPORT (TIR) WORKSHEET Part 12 TIR SUMMARY SHEET (provide one TIR Summary Sheet per Threshold Discharge Area) Source Control (commercial / industrial land use) Describe land use: Describe any structural controls: Oil Control High -use Site: Yes / No Treatment BMP: Maintenance Agreement: Yes / No with whom? Other Drainage Structures Describe: Part 13 EROSION AND SEDIMENT CONTROL REQUIREMENTS MINIMUM ESC REQUIREMENTS MINIMUM ESC REQUIREMENTS DURING CONSTRUCTION AFTER CONSTRUCTION ❑ Clearing Limits ❑ Stabilize exposed surfaces ❑ Cover Measures ❑ Remove and restore Temporary ESC Facilities ❑ Perimeter Protection ❑ Clean and remove all silt and debris, ensure ❑ Traffic Area Stabilization operation of Permanent Facilities, restore operation of Flow Control BMP Facilities as U Sediment Retention necessary ❑ Surface Water Collection ❑ Flag limits of SAO and open space preservation ❑ Dewatering Control areas ❑ Dust Control ❑ Other ❑ Flow Control ❑ Protection of Flow Control BMP Facilities (existing and proposed) ❑ Maintain BMPs / Manage Project Part 14 STORMWATER FACILITY DESCRIPTIONS (Note: Include Facility Summary and Sketch) Flow Control Type/Description • Water Quality Type/Description ❑ Detention ❑ Infiltration ❑ Regional Facility ❑ Shared Facility ❑ Flow Control BMPs ❑ Other ❑ Vegetated Flowpath ❑ Wetpool ❑Filtration ❑ Oil Control ❑ Spill Control ❑ Flow Control BMPs ❑ Other 2016 Surface Water Design Manual 4 4/24/2016 KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL TECHNICAL INFORMATION REPORT (TIR) WORKSHEET Part 15 EASEMENTS/TRACTS Part 16 STRUCTURAL ANALYSIS ❑ Drainage Easement ❑ Covenant ❑ Native Growth Protection Covenant ❑ Tract ❑ Other ❑ Cast in Place Vault ❑ Retaining Wall ❑ Rockery > 4' High ❑ Structural on Steep Slope ❑ Other Part 17 SIGNATURE OF PROFESSIONAL ENGINEER I, or a civil engineer under my supervision, have visited the site. Actual site conditions as observed were incorporated into this worksheet and the attached Technical Information Report. To the best of my knowledge the information provided here is accurate. Signed/Date 2016 Surface Water Design Manual 4/24/2016 5 Sabey Data Center() 1 Q Coca Cola Group Health O CooperatNe ®Department of Stephen Achuff,ARNP Homeland Security ®t USCIS Application Support Center s S 126th St 2S12499 S 128th St 7 S 128th St z N m AA Y O ,g_ 5 5 Rosso Gardens N S 126th St S 1261h Si to a d �z a m '0 N t N o � F2 77Rth 5 S 126th St { S 128th St S 728th St Tukwila Community Center Tor itO4wamish Rive' —JPROJECT SITE Expel S Friendz Cafe g 130ih St 'Q a a y 5 ©S130thst 1:2-Mersald:7itsy,6)EmbroiderY0 �•���. yg 130ih Si S 13Gth St S 130th 5 \ \cn Tfl � s -`DJ�VI519m/PNNd NorMedQN ,,a/,�y ova S131stSt .,r /�9zn 2P65� cc N a5 E p A 9 rt 5 o 7 rn m �C N w Rrverran Park ti o° N ...A7 a S 3r 5, 32ra5� y o�d Googie ia s el/ s/A .17 w ran -74 DWD 1200 6th Avenue, #1620 Seattle, WA 98101 206.267.2425 TEL 206.267.2429 FAX www.ahbl.com S 133rd St s /33m c. 5133'd St a Map data ©2017 Google 200 ft' DENNIS I Seattle S 0 3 1 Tukwila Public Schools Transpo. Bldg. Vicinity Map Fig. 1-2 0738 1509 RIM=38 13-, 12 PVC NE IE=5B 15 i ,F„N. r112-BE81—_1PE1,E5'E' 4h43..5,5-3S1253S23 , ., E.. 51; C5 BiMC1Pl5' 3PN5 ,snpi 1500 R3888 1508 R887 4 W LSAAD1.EMN=3-:4243—..-110ANB,, 04-, / 8PsC N 31 98 6pVE E-w 8' CmP NE E400NA3N7 " CMP 5 E=35 38 / NR SNANNE- 3442 . .704--, \ '"PVC SW .08 , 4SJN-3502 -2'C.> 0C, .4 1.'.PALBERE 4cL:T-3502 RSW '•' ' bI .:, , ,A ;\ - - iI 1.8 N S"ICES 1501 P,M=38 45. , , 47 4‘ -4. i CPP = 17--35 30 \ ii_,,* iScr.O.:..UrT H 128TH STREET 1 '14""-. PIMP 1597 P M:- 42.33 4...36,, 18 DMP N ,E. 35 IC ',.. 12' W _ — W • ,I5. W Z • N112 PA",-- , E 1•,121"-.4 C,BP, PE SE I.if Ds,i545 BD- A4 \ __b,,4 6v .—:102E_, 1 I • 4OUCC7:S8P'T1N‘EW1_1,E5EW8="11R1'E3EN4A1/ \ ( Scp,pE35:8 ( 4-889 110ERF 314 \‘', ,P-",.--- -AV, , _ _, • 7_ 2 9W ti5 . 2 4: S89 17 118 / it'atgkAT, S.C8 EU4 419-1.5 DO- 1-- 12" E t 2 3 12" CPP 1E-36 -2 - - 12 LAP E 39 09 1/24 PEBAR ANS CAP „E. 21394/ 01 1.WENs1,1 EXISTING AREA DRAIN BASIN EXISTING SWALE SATE • '2.414 1r,. „ B 1093%, , ; CPP N E E3 - 12" CP, W iEA 3574 ; \ I i N.j L --• x - • -* PIPE FLOW LSTC8 1986 R1,1PA11 08 -----;7' 12 (PIP E :E ,38.(13 - - ' Dit,'ff 774' RIM • :47-.3s-',, t," CPP SW 1E* 33,98. -"' APE W PLNC1C10 V,1; CONC N. OVERFLOW'S W AND SW 1, __ __. --. .„ - .1 _91AILLIS,Sa..5.0 ., BOT,OXA 1,111-31 1'5 I LAI.,DER IT EXISTING CATCH BASIN - LU w / \ 1 ; • ..,:- 262.84 , pa.,,,, .„-• ‘, " '',..., ''1 1 , •p1 '11 '11'.J ". \ , . -__ ....‹, . 1- , 1'.) ...3 .7---,'\'‘ \ ‘: \\ '1 0 , 1 ; ''t *-- i.ti I V) - - .4', 0 / ,ItIrl 3/ I-. :TSB 1585 PW4=41 3 ID' EXISTING - CATCH BASIN -= ) C.PP E= 3E. 61 U_ _J OF . ./ UJ ,---- (1.332 SF 41 -'' „, & ----- 4/ ..„,"' 40 ,------ 'IA' 7-- ' ------ s‘ 4774 .---- -- CO ------ ,,' PIA L `s. .---- 1 sr':'\ ;1 ..,-•- ) ' x '--1''''' ! ,„,., , r____ ,I, , , 0 -- , , ; ....I v . _ / i ...,,, ,, 0 ._11,111V1 .k! L` _., L , -y:' / //f, ! `.' r • (.,) i • —1 • m, • mu' ' .-1 ° 7,..i.,4,'T...!..1..:..s..,,,,Liiit. 1— —/ i- _ „--= -,,, - z , - , „„„. ,,, 1 ; ,,,, ts.F v Ae ,7' 444 • • 1 '' ' ‘ ''0/ 'i - -- - PROJECT SITE 1 .- 111",;,•'-i' ; ,_ ., t ;•._,,,i l-3 V, +; I 1 1 L ••• \;' 1 i 1477 , 1 ; i 1 ; , ; r ,ill. , , • ' I ' ' I ' 0. , N., , , I I,%atl.r.-a--N 11---T1 •---,--- — \I!‘,. i \ -- i I • • .,- .3 -I(. ‘'.c-\ \ , '._- I- I _ I . I ::....--,-=_.-,,-___.--,- --L• 4 ,v c '`. -;8'1N \ 1, MI III MI li•—•--- :Ill MI mirmi • me or lir . ii A ,,Ilk .' \-. ), `.`44n .1' : • p 11 - - - - - 44,. - - 1 ____ / -,..%,,, ,,':;4•.,:;,:-.,,,,, ..-"' 4-1 1;1 ,.,--.--,,- , __ \ - i •::-.5 '''''' 1 -_...-/-/ -- -1"--.-__ -;'-',.1'''‘C !'.-:',-..--- ' '` ' ..,. '-' L ms...crErNBrrNit'f , I _4- 5 .--- r'-',, _ - "<•,,V 50* 42' 4-0'w—"-1,,C ''',rA' 44'44 '4'4 0 23 ,k AND C S1 N , 2 1 11/(11.1. 11 IIIIli I1111111 1 CC / 1 0 111 1,2 gt !II / III 11- 111/ -11,1,--- 0 - I V) , I 111 —FOUND 7/0 PLOD ,N ' CONS A CAPE AT Si, r1 '7 ,I 9'711E' 4'4; AAIG, 0 N Al 2 p 1i ' OF PEO2PD POSEEON :. 31 1 (II-14-154' f. EXISTING DETENTION POND =TD= 2141 P.112=44,76 I 8' CMP SW, 1E-42,51 S-DE _1 .2 '13- 42.34 8" CUP N 1E=35.79 8" DMP NE 42.ND 18' CM? 5 1E=2.5.79 FOONC CI14, REP AR AND CAP 0.03' N EXISTING SWALE _589:,17-11".08- t; WOOD / COS 1CO \ rouNG ,.,,,' , 1/2' REBAR 4N3 CAP LS 1-3, \ 213E4 E Ce 3 AND (3.13' N '554- f ,i • 01- CONNLA 144.59' • . ; ' , ,..1.1 C-1 4( PTCH 2140 R1MA 45.17 Pf., Es" 61411 S 1E-.15.07 PTC8 2139 Rw=4:3.81-1, 'I , 18" CMP N iE.A42.11 44D-A.F. 200 6th Avenue, #1620 WB� Seattle, WA 98101 206.267.2425 TEL 206.267.2429 FAX www.ahbl.com 40 EXISTING CONDITIONS -IMPERVIOUS AREA: 4,450 SF -PERVIOUS AREA: 700 SF -TOTAL AREA: 5,150 SF GRAPHIC SCALE 0 20 40 80 1" = 40 FEET Tukwila Public Schools Transportation Building Existing Conditions JOB NO. 2160789 DAT1)23/17 Fig. 1-3a STOB 1309 :TM=33' 6 4')4-t 1 ND WASHER N 61064.6026 H 15.51 / \ 38 35 \ • S7(B 1501 P1M_31515--\ i] 19 -MP NI 3. 10 122 C 9P = It 5 30 • ' S_ — — \ RIPPAP -TCB 1504 RIM=-3.70-5- P E iE-36.62- 2 �X - 'EPP -z 1F=39 09 F'C,'NC '/2 RE3AR AND CAP LS 21.\64 0. 11" S OF CORNEE EXISTING AREA DRAIN SWALE CB , .I M 3.,.0., \ 12 N E 5�.53 . �. I .'nrFT 1. i . �11 /a\�•1'�I wc:D \ \ (Its! a ` RE I.I N'NG \ V "" WALL • F I 1 '\ { r PROJECT SITE SWALE I FOUND REBAr AND fA-' 0 03' N It STME1 1500 14.1.1-33 88 -. i I 3•05 RIM. `-. 87 18 PVC N 1E_ 1.95 C C W CMP 0 IE=3508 ENTER CHANN _ 34- 41 1 - PVC. SW IE s 4 NE CONE IE '5.02 LADDER E CONE; 'EE =435. 02 - _ / LADDER E hB 1686fM 7 CRP F. If 8 )3 I CPP SSW IE H,J.1<'.P PROPOSED BUILDING 589.1 17 / / SOUTH 128TH STREET I W-------ar-..—_.---wt. �..�,_ _ N89' 17' 11-W 1'ATC3 N - N HAIN 5,0. n'1T)R-f684 R11.4R241 i =� PIPE W. PLUGGED W/ CON C1VEFfLCU5 'N ANU W 7. ('3 LLTLGT;_i39,03........... BOTTOM 1,41-1=31 15 55, SO' 42' 49-W 1 / ND �.. REBAR AND CAP 0.733R ANIL 0.01' N OF CORNER DOWNSPOUT TO DAYLIGHT TO SWALE /•_ TCB 1385 RI 2 i'PF` 1505 PIA, 4310 • - 1 CM= NW IE 4 C CMP NE - 4 .60 18' CE/P S IE--4'0 CAP 1N I_ 35 CO LADDER SW C i V/:" RE5AR ANC : AP 3' 21354 EXISTING — CATCH BASIN J i, 11 y. ... FOLL D�t}. yet I/O'ere R AL,B (AP t 21934 I / 8'I 0.1 /1 )Ii;t I 11 442.2..75L' t-.- LINK. VANE T , r. - cno• 7 11"E _r _ A. 7:164 (,.08' E ^.ND 01,4' N CORNER 144.59' —/I '36 214.0 R1F '44.11. -/•.• I 8' CA1P 1, 'E= 1j.67 0 I CI 4, rn 51W1-1 1807 RINI=42-\8 20" CON( NW 1ER 34.28 " CONC SE IE 34.58 SLID PIPE CROSSES E-W TOP OF F FE 35.98 LADDER •5E B 1506 RIM 42.51 =-41. 06 EXISTING DETENTION POND aZ F .(C 7/8FIND IN ( NC N CASE .I CL E MARGINAE WAY 11 WAND 1 7' S or RECORD PO 'TION (11"'14516) 33 () 2141 RIF4-4425 ,-- ,�•-..... 8" CLAP SW IE-4'2 51 y -- - {--- TCB 2142 RIM 45.44 III 18 MP I4 IE 35 9 III 4 (.MP NE IE 4 69 III III LaE7 18"CMP 1 IE_,,; g I• CI III 1 li ' ui �: II III �n2 :r III /1 III I� F,, iI 1200 6th Avenue, #1620 Seattle, WA 98101 206.267.2425 TEL 206.267.2429 FAX www.ahbl.com DEVELOPED CONDITIONS -IMPERVIOUS AREA: 4,500 SF -PERVIOUS AREA: 650 SF -TOTAL AREA: 5,150 SF GRAPHIC SCALE 0 20 40 80 1" = 40 FEET Tukwila Public Schools Transportation Building Developed Conditions JOB NO. 2160789 oa 1 /23/17 Fig. 1-3b PROJECT SITE r r r DATA SOURCES / REFERENCES: KING CO: STREETS, PARCELS 12/16 USGS: SIM-2855 r 1200 6th Avenue, #1620 Seattle, WA 98101 206.267.2425 TEL 206.267.2429 FAX www.ahbl.com Snohomish County King County Pierce Ccunty Qvt: Till Qvi: Ice -contact deposits Ovr: Recessional lacustrire deposits QaI: Alluvium (Holocene) Tukwila Public Schools Transpo. Bldg. Soil Survey o Section 2 Conditions and Requirements Summary Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 • • • • 2.0 Conditions and Requirements Summary 2.1 Conditions of Approval Conditions of Approval will be included in the final Technical Information Report, as required. 2.2 Core Requirements 2.2.1 CR 1 — Discharge at the Natural Location All stormwater runoff will be discharged at the natural location. In the existing conditions, stormwater runoff sheet flows north to catch basins, STCBs 1685 and 1686 which drain to an existing stormwater pond. The stormwater pond discharges to the city storm system within South 128`h Street In the developed conditions, the roof runoff disperses into the existing swale located along the south and east property lines. The swale will be reestablished and refreshed. The replaced asphalt will sheet flow to STCBs 1685 and 1686. All structures and the swale connect and eventually discharge into the existing detention pond located in the northeast corner of the parcel. 2.2.2 CR 2 — Offsite Analysis The discharge location of the project site is from a flow control structure located at the north end of the site. This structure hydraulically connects to the existing detention pond located at the northeast corner of the parcel, where the existing site catch basins (STCBs 1685 and 1686) and area drain (located in the swale) discharge as well. In the developed condition, the storm runoff flows to the same existing structures connected to the existing detention pond; therefore, there is no change in runoff to the detention pond. Since, the project does not change the rate, volume, duration, or location of discharges to and from the project site, the project is exempt from Core Requirement 2 per Note 3 in the KCSWDM. However, AHBL staff did walk the downstream and field inspected the area. The downstream path was found to be well defined with no signs of erosion or sedimentation. No signs of flooding or overtopping of the downstream were observed. No downstream complaints were reported downstream of the project site. After, discussions with City of Tukwila staff, AHBL found that the downstream system has been recently improved along East Marginal Way. It is expected that the project will not create or aggravate potential downstream problems. 2.2.3 CR 3 — Flow Control The Tukwila Public School Transportation Building is exempt from Core Requirement 3 because the project meets the basic exemption of the following: 1. Less than 5,000 square feet of new plus replaced impervious surface will be created, and 2. Less than 0.75 acre of new pervious surface will be added. See Figure 1-3b, Developed Conditions Map for areas. 2.2.4 CR 4 — Conveyance System Conveyance systems will be designed and analyzed per Chapter 4 of the KCSWDM. Refreshed swale will be designed to convey the 25-year peak flow and convey as much of the 100-year peak flow to prevent erosion and flooding. Any overflow from the ditches/channels must discharge to the natural location of the project site. The design and calculations for the swale system will be included in Section 5.0 with building permit submittal. Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 2-1 2.2.5 CR 5 — Erosion and Sediment Control An erosion and sediment control plan will be developed for this site in accordance with the KCSWDM and the King County Stormwater Pollution Prevention Manual (KCSPPM). The full erosion and sediment control plan will be described further in Section 8.0 and in the project plans. 2.2.6 CR 6 — Maintenance and Operations The onsite drainage facilities will be privately maintained by Tukwila Public Schools. An Operations and Maintenance manual will be provided in Section 10.0. 2.2.7 CR 7 — Financial Guarantees and Liability A Bond Quantity Worksheet will be provided, if requested by the City. 2.2.8 CR 8 — Water Quality The project site is exempt from Core Requirement 8. The project site meets the surface area exemption, Exemption 1. The project site meets the following criteria: 1. Less than 5,000 square feet of new plus replaced pollution generating impervious surface (PGIS) that is not fully dispersed will be created, and 2. Less than 0.75 acre of new pollution generating pervious surface (PGPS) that is not fully dispersed will be added. 2.2.9 CR 9 — Flow Control BMPs Flow control Best Management Practices (BMPs) will be evaluated to meet the core requirements. The project falls under the requirements for Large Lot BMP; see Section 4.0. 2.3 Special Requirements 2.3.1 SR 1 — Other Adopted Area -Specific Requirements The project site discharges to the Duwamish River approximately 1.2 miles downstream from the project site. The Duwamish River water quality holds the following status: Category 5 — 303(d) Water: - PCBs; Alpha-BHC; 4, 4' —DDE; 4, 4' —DDT; 4, 4' —DDD; PH; Temperature Category 2 Water: - Bis(2-Ethylhexyl)phthalate; Dissolved Oxygen Category 1 Water: 1,2-Diphenylhydrazine; 2,4-Dinitrotoluene; Anthracene; Fluorene; Ammonia-N; 2,4- Dichlorphenol; Chloride; 2,4-Dinitrophenol; Hexachlorocyclopentadiene; Chlordane; Pentachlorophenol; Dimethyl phthalate; Bis(2-chloroethyl)ether; N- Nitrosodiphenylamine; 1,2-Dichlorobenzene; 1,3-Dichlorobenzene; Mercury; Bacteria; Hexachlorobutadiene; 2,4,6 — Trichlorophenol; Nitrobenzene; 1,4- Dichlorobenzene; Hexachloroethane; 3,3' Dichlorobenzidine; Bis(2- chloroisopropyl)ether Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 2-2 A The project will not adversely affect any of the assessed issues per the Clean Water Act. 2.3.2 SR 2 — Floodplain/Floodway Delineation Flood Insurance Rate Map No. 53033C0960 F, Panel 960 of 1725, was consulted for this project and did not show any floodplains on the project site. Refer to Figure 2-1 of this section. 2.3.3 SR 3 — Flood Protection Facilities The project does not contain, will not construct, and is not adjacent to any existing flood protection facilities. 2.3.4 SR 4 — Source Controls The proposed project consists of a building and adjacent pavement. The KCSPPM will be referenced for source control measures in addition to erosion and sediment control measures during construction. For construction source controls, see Section 8.0, CSWPPP Analysis and Design. For post -construction source controls, see Section 10.0, Operations and Maintenance Plan. 2.3.5 SR 5 — Oil Control The project does not fit the definition of a high -use site; therefore, it is not subject to oil control requirements. Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 2-3 DwDII Section 2.0 Figures Figure 2-1 Flood Insurance Rate Map 53033C0960 F Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 I I 0 I 1 I I I I Section 2.0 Figures Figure 2-1 Flood Insurance Rate Map 53033C0960 F Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 rry OF TUKWILA 530091 22 UKWitA SEA -AC 27 Is PAN SST. L IS LOCATED WITHIN 34 I I � L A PROJECT SITE THIS AREA IS SHOWN ON MAP NUMBER 53033C0957 THIS AREA IS SHOWN ON MAP NUMBER 53033C0959 ZONE AN N re ere err .,.6P= .adN.s,r,erVa.. peee No areN rverreurLev r:I eve OTFS CI .36 re re,. reozare. srws0nr Ana a.F.Lan LRnv NI N. Farx LLATE LE 00u10,5CF FLOOD m c_ Ns MAP 0 SCALE IN FE. NATIONAL FLOOD INSURANCE PROGRAM') FIRM FLOOD INSURANCE RATE MAP KING COUNTY, -WASHINGTON AND `INCORPORATED AREAS PANEL 960 OF 1725 IPACE NINE. MIN MAP NUMBER 53033C0960 F MAP REVISER: 1200 6th Avenue. 61620 Seattle, WA 96101 206.267.2425 TEL 206 267.2429 FAX www.ahbl.DOm Tukwila Public Schools Transpo. Bldg. JOB NO. 2160789.10 Flood Insurance Rate Map DATE: 01/23/17 Fig. 2-1 ► 1 1 I ► ► Section 3 o ► Offsite Analysis 1 1 1 1 o 1 1 I Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 1 1 3.0 Offsite Analysis This project is exempt from offsite analysis. Please see Section 2.2.2 for further explanation. Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 3-1 HBO ► ► ► ► ► ► Section 4 ► I Flow Control, Low Impact Development (LID) and I Water Quality Facility Analysis and Design • • • Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 DWB� • • 1 4.0 Flow Control, Low Impact Development (LID), and Water Quality Facility Analysis and Design 4.1 Flow Control 4.1.1 Existing Site Hydrology (Part A) The existing project site consists of a parking lot with approximately 4,450 square feet of new/replaced impervious surface and 700 square feet of pervious surface. The storm runoff from the parking lot sheet flows to the north to two existing structures to the north (STCBs 1685 and 1686). The pervious surface located to the south and west of the parking lot sheet flows into a swale along the project's western and southern boundary. The swale flows to an existing area drain that then connects into STCBs 1685 and 1686 and continues to an existing stormwater pond located at the northeast corner of the property. The entire site connects into the same TDA, TDA 1. See Figure 4-1. 4.1.2 Developed Site Hydrology (Part B) The developed site will construct a building at the existing impervious surface and replace the removed asphalt beneath the new building and as needed for ADA parking and grade transitions. The total developed impervious surface area is 4,500 square feet with 2,500 square feet being new roof area. The replaced asphalt on the north and east sides of the new building sheet flows north to STCBs 1685 and 1686 and the stormwater pond, matching the existing conditions. The runoff from the roof of the new building daylights from three downspouts to the existing swale located to the south and west. The 650 square feet of pervious surface located to the south of the new building flows to the existing swale. The existing swale will be reestablished and refreshed to meet the conveyance requirements of the KCSWDM. Calculations will be provided with the building permit submittal. See Figure 4-2. 4.1.3 Performance Standards (Part C) Area -Specific Flow Control Facility Standard This project is exempt from flow control requirements; see Section 2.2.4. Flow Control BMP Requirements Flow Control BMPs are required per CR 9. The project site totals 5,150 square feet. The proposed site includes 4,500 square feet of impervious area, including new and replaced impervious areas. The project falls under the Large Lot Low Impervious BMP Requirements. Below is a summary of the Flow Control BMPs (per Section 1.2.9.2.3 of the KCSWDM) that the project reviewed for use: 1. BMP Option 1: a. Full dispersion: The project area was evaluated for full dispersion of target impervious surfaces. It was determined that full dispersion is infeasible because of no available area and the soils in the area consist of ice -contact deposits, which provide little to no potential for infiltration. 2. BMP Option 2: a. Full infiltration of roof runoff: Soils are ice -contact deposits, with little to no potential for infiltration. No formal infiltration facilities are proposed. Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 4-1 A WB� • • 3. BMP Option 3: a. Full Infiltration: Soils are ice -contact deposits, with little to no potential for infiltration. No formal infiltration facilities are proposed. b. Limited Infiltration: Soils are ice -contact deposits, with little to no potential for infiltration. No formal infiltration facilities are proposed. c. Bioretention: The project site was evaluated for bioretention for target impervious surfaces. It was determined that bioretention is infeasible because of a lack of usable space and the proximity to a steep slope. To the west of the site, there is not enough room to provide bioretention without damaging existing trees. To the south of the site, there is a steep slope adjacent to the property. d. Permeable Pavement: The project site was evaluated for permeable pavement. It was found that permeable pavement is infeasible because there is not enough area available and all surroundings areas are matching adjacent existing standard asphalt. 4. BMP Option 4: a. Basic Dispersion: The project site was evaluated for basic dispersion. It was found that basic dispersion is infeasible because there is no available vegetated area for runoff to disperse to. 5. BMP Option 5: a. Reduced Impervious Surface Credit: The project site was evaluated for applying the reduced impervious surface credit. It was found that the reduced impervious surface credit is infeasible because there is no area to reduce. b. Native Growth Retention Credit: The project site was evaluated for applying the native growth retention credit. It was found that the native growth retention credit is infeasible because there is not enough area to receive credit. The KCSWDM requires approximately 17,000 square feet to be retained while there is orgy about 8,000 square feet available. Perforated Roof Drain for Connection All roof drains daylight to the existing swale to the south. As such, no perforated pipe connections are proposed. Conveyance System Capacity Standards The existing swale will be sized to adequately convey the fully developed, 25-year storm event, as stipulated by the KCSWDM. The conveyance system is further described in Section 2.2.4. 4.1.4 Flow Control System (Part D) This project is exempt from flow control requirements; see Section 2.2.4. 4.1.5 Water Quality System (Part E) This project is exempt from water quality systems; see Section 2.2.8. Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 4-2 I I 1 Section 4.0 Figures Figure 4-1 Existing Hydrology Conditions Figure 4-2 Developed Hydrology Conditions Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 '4 STCB 1509 RIM=38 13--, -, 12" PVC NE lE=35 18 AHBL 041 \ 1 --- STUN 1500 RIM=28 88 sso { 1508 R4A-..35,8 / .2- 1-- ,-. lEN. 2,2.'8E..- - LA"'*DDEVR E A ST1'C'3:B C1M505. 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BMU 1MMMIERNP'2C ,PPP3„25'I, N4 SN"27AOE7,,1 Aw,R8 R/ 3\ \_-_71\6D i1CPP:E1,N-4./2 'bII 04RM8-Q'-.-—( ' 8AP 0011 ,PP S 8=30 2 i.' ;NS89171E ,% ,'' ' ATE __5 _N lNK 0-84 //. t ,,= c-:i RFBAR QICPPNE= \, I C3 01F 41ic.12PPWE=74 _.. ///// L //\12 erpPW PLUMED W• I, 11f1W D T,B 1t81IM41 3 EOTTMi.17I CPP0E0 -12CP1*E=37.35 . - w - -- 0 238420-D 613 .—AH3L r06 I NAt AND WASH ELEV0.37 _1▪ --. __..,;;___' °- %(a1 ' 7M01- M.M 1A- L2.,;.2A,O5,76:71i4,WlFD9' 9454 O415 C6YIN CP: / I -7' -P- - .;;;7:..P—. -._ It\ A._..._(...r, 5 SO20“1' BAD sgiii JN,, ,,, 0 23W AND 001 N \ ' 1W- 1- 1/''F ORNER ..... . _ ''' N1, Illr \ 1/2RE6AN AND CAPLS- '',\2136008AND013N 1±4.q9. \ OF CORNER I Ili (1.6 A- •••••,.. 5 l(llsrK I C05,C0 STCB 2140 CMP REBAR AND CAP 0.03' N EXISTING SWALE SICB 2139 RIM 81 . - .- 18" CMP N t. 42.11 e y, 1 1200 6th Avenue, #1620 Seattle, WA 98101 206.267.2425 TEL 206.267.2429 FAX www.ahbl.com EXISTING SITE HYDROLOGY CONDITIONS -IMPERVIOUS AREA: 4,450 SF -PERVIOUS AREA: 700 SF -TOTAL AREA: 5,150 SF 40 GRAPHIC SCALE 0 20 40 80 1" = 40 FEET Tukwila Public Schools Transportation Building Existing Hydrology Conditions JOB NO. 2160789 DATE: Fig. 4-1 1 1 1 1 1 1 • • • • • ESPP 188.7 /' STB 1504 R5=38,70 E 503952 CPP 37225 .- 2"CPP d 5001 5E9 214.3813 1E" PVC, NE =35/8 18" PVC8" CMP r4w 12..=34 70 \ S ICH 15'05 R1122248.1 0 --, Ts ST6111 15C/0 RIM = 38 88. - SE11/112 1508 RiM= 28.87 NAL ANAD''641-21/S*H''E'R4 \ \ L 4 18" CIO 3 lE=35.08 CFNTER / CHANNEL= 34.42 8" CIAP NE 1122540.60 \ \'‘ ‘0...d" 4 N 1815,134 8025 \ 1 9 / 12" PVC SW 1E54835 08 d 4" EONC NE 1E 35.02 18 DAP S 1=2E4, 70 \ '7 d‘dl . 4 E11291221H 5152 I d P E 2 ALICER SW I' / d: , /6. l ELEV 38 35 \ LACid ,..4,,D2c,29ENC CAP W 1E350 SE Ii7=35 02 2'.0 '' .1,E ,DER E. 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I•:;d\1,;.‘I.,'Al.I.i., \ ,l1„\di1l1\r 4\EIr , \9 -lI,:d1lq1,ll1- 1 l-i11,11mlr1m/ 1111l AR .9: 0I 1 II i-II1iI 10z,5r444.C.1).,.1. / 12C16dE,-cP-111 1 /I -/ii1 \\U/ EXISTING ,230 r„i, I CATCH BASIN / I p, 10 CATCH BASIN - I ' SWALE / k:/\,11 1 o ,,-__ \ 11d O - „-„• 9 - FOENO / Q 8/ 72' REBAP AND 20 ALS 21354 1 0 S OCRNER EXISTING AREA DRAIN 1 , wc'0,\\rv=,kr rAtENN8 y 1 4812 \ ,443d^4, _ „ /rC E T 1. 5 2 8 859- _ d/lCi77- 1, x_ N LINK 552 AE _ x CPP E3859 k A ‘%•.-• - „..,+—PIPE FLOW D ste 1659 PIMA 41 08 h---, 4A 274R 1834._5w45 .55s, .., 2r EPP E IER38.03 , _ ,E• ' EPP SW IE:=313,1.252 / PIPE W PI 0120E0 8/1:0NE OVERFLOWS W AND SW ...-02-0E.193111 Elk :ff.i..;9.. __. R1'E ri012 NH= 51 , Li:mirk 0 .. . Iw --- r 0 05) - L_ PROPOSED BUILDING -64ccc 022211 6' CHAIN 1711K REPAR ANC (2AP 0.93' N rkkk,no 1 3420- CIO' .32 31 \ WL • 4111. Ft'c,•,7 .1-1` F-1-171 caE171 (f) 1 EXISTING , t 1 ' „ - c:i:,„-',-,-..--, 11liA " j --' 1 1 " ',4 E,.t....17:1_,L.1.„1",___._.._ :.ii;7,,::::'r,..,1:,,::1-1/1". .,/,11\11' \7:1 1.- /1,1111_1,- k),:„.. 11..11:11111 --- f----1 ''.7? 1 . .,2." • 0 31.1Ll, "1" ., "//1/82".' CEN T01/1.1.L.2L W 0 W LI. LU •-• REEIAN ANN CAP 0.01' 5. -1' OF CC:NE.14 DOWNSPOUT TO DAYLIGHT TO SWALE N`K ---- 589 , -- i \ 17 . \ IOUND-/‘ 1/2- RE DAR Akli 12A0' LE, 21 RAI 0 08/ E AND 0 13' A 55 OF CC RNER , I CCSTCC 1_44.59' /I 41223 2140 858A413.17- 3" CRP S 'E 405,5 LPL 11 00 III c< 111 1 ,..--rourciu 7/8" PIUS IN ..- Ili EONC RA 17A3E. A-r CL ill rd11-1 I CP r MAR.21k AL WAY 1 0.11' W 49D 1.2/' S 1;111 III I --- '0" REEd3R0 POS TION (III4-15) dr 11111 I 7E53 2141 RM, 44.76 353.11 I !!I llr i 18" EMP N 1E=13 3.79 j1 rr ' 8" CMP NE 1E= 42E19 "n18" CMP S 1E-33.79 ill ,9> ▪ th ic- or„ -.',. III '7 t.9,F ill 111 , , Ili 111 11 ip lii „id, lilli lir ,E4 10,4 1200 6th Avenue, #1620 Seattle, WA 98101 206.267.2425 TEL 206.267.2429 FAX www,ahbl,com DEVELOPED SITE HYDROLOGY CONDITIONS -IMPERVIOUS AREA: 2,000 SF -ROOF AREA: 2,500 SF -PERVIOUS AREA: 650 SF -TOTAL AREA: 5,150 SF GRAPHIC SCALE 0 20 40 1" = 40 FEET 80 Tukwila Public Schools Transportation Building Developed Hydrology Conditions JOB NO. 2160789 DAT": I23/1 7 Fig. 4-2 Section 5 Conveyance System Analysis and Design Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 DWB� 1 1 1 5.0 Conveyance System Analysis and Design New conveyance swale will be analyzed to convey the 25-year storm event and checked for adequate capacity for the 100-yearstorm event. No overtopping conditions are expected, and the swale will meet the requirements of the KCSPPM. See the attached figures for the conveyance system analysis results. Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 5-1 Section 5.0 Figures Figure 5-1 Conveyance Basin Map (to be provided) Figure 5-2 Summary Table (to be provided) Figure 5-3 KCRTS Flow Calculations (to be provided) Figure 5-4 KCBW Calculations (to be provided) Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 Section 6 Special Reports and Studies Technical information Report Tukwila Public Schools Transportation Building 2160789.10 owD� 6.0 Special Reports and Studies 6.1 Geotechnical Report Shannon & Wilson, Inc. performed a field investigation, a copy of which has been provided. See Figure 6-1 attached. Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 6-1 DWB� Section 6.0 Figures Figure 6-1 Geotechnical Report Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 A WOO FIGURE 6-1 'In SHANNON taWILSON, INC. GEOTECHNICAL AND ENVIRONMENTAL CONSULTANTS January 23, 2017 Mr. Jeff Feeney, PE KMB Architects 906 Columbia Street SW, Suite 400 Olympia, WA 98501 RE: GEOTECHNICAL EVALUATION, PR FACILITY AT SOUTH 128TH STREET TUKWILA, WASHINGTON Dear Mr. Feeney: We are pleased to present this geotechnic proposed School Bus Driver Rest Faci Marginal Way S, Tukwil recommendations, pe (proposal number 21-2- • Researching existi • Visiting the site to ev • Performing engineering ALASKA CALIFORNIA COLORADO FLORIDA MISSOURI OREGON WASHINGTON WASHINGTON DC METRO WISCONSIN OL BUS DRIVER REST RGINAL WAY S, n the design of the u�tfi 128th Street and East geotechnical observations and al for Geotechnical Services 2017. Our services included: 1 and subsurface conditions. o provide the recommendations made in this letter. SITE AND PROJECT DESCRIPTION The project site is located at the southwest corner of a school bus parking lot near the intersection of South 128th Street and East Marginal Way S, as shown in the Vicinity Map, Figure 1. A chain link fence extends along the perimeter of the parking lot. Although the parking lot is relatively flat and at an approximate elevation of 45 feet, the adjacent property to the south of the proposed project site slopes for approximately 50 feet to a topographically high elevation of approximately 65 feet. The total grade change from top to bottom of slope is about 20 feet. This slope is designated on the City of Tukwila Sensitive Areas Map as a 15 to 40 percent slope with moderate landslide potential. The base of the slope is approximately 2 to 3 feet from the south fence, where the slope toe is cut vertically and reinforced with a rock wall (rockery). The maximum height of the wall is about 3 feet at the westernmost end of the south fence. The slope is overgrown with blackberry bushes, cedar trees, and other vegetation. We 400 NORTH 34TH STREET, SUITE 100 P.O. BOX 300303 SEATTLE, WASHINGTON 98103-8636 206-632-8020 FAX: 206-695-6777 www.shannonwilson.com 21-1-22320-001 Mr. Jeff Feeney, PE KMB Architects January 23, 2017 Page 2 of 9 SHANNON 6WMLSON, INC. understand that construction of the Facility will remain on relatively flat grade and will not require excavation into the sloped area. Based on our conversations with you, we understand that the Facility will be a one-story, wood -framed structure, approximately 60 feet long by 40 feet wide. SITE GEOLOGY AND SUBSURF E CONDITIONS Subsurface geological data provided by the Washi. project site and adjacent slope are underlain by Qu glacially overridden, dense silts, sands, and gravels. the Duwamish River valley and was deposited by the Lowland, during the Vashon Stade of the Fras We visited the site on January 13, 2017, t proposed Facility. During s . t, w southwest corner of the south fence, located as arking lot. ho to 2 feet below ground su ace in -place density of the soil a he dense topsoil and sod with scatt feet bgs. This layer was underlain sand with gravel. Based on our revie b e Site ed c e u e o the les, dense Glacia u. ted ted gto to ologic ce-co his m st ma Tro on r u cial. re thole e pothol e 1 is P1 Survey indicates that the act deposits consisting of termittently found along lacier in the Puget tocene t an 1 II1 rs, 2008). urface conditions at the with a hand shovel at the es on the grass strip adjacent to the e potholes extended to depths of 1.5 'nch-diameter, steel T-probe to evaluate the At all holes, we observed loose to medium oncrete, and asphalt debris to a depth of 1.5 to 2 o very dense, brown, poorly graded sand and silty subsurface geological data, this layer consists of of glacially overridden Quaternary ice -contact deposits. We observed moist soil throughout excavation, but did not encounter groundwater. Groundwater levels at the site are likely dependent on seasonal weather patterns. It is our opinion that groundwater is below the proposed building excavation. We backfilled all potholes with the excavated material following our reconnaissance. GEOTECHNICAL RECOMMENDATIONS Based on our analyses of surficial and subsurface conditions, we have made foundation and associated earthwork recommendations in the following areas: 21-1-22320.001-LI/wp/1kn 21-1-22320-001 Mr. Jeff Feeney, PE KMB Architects January 23, 2017 Page 3 of 9 ■ Foundation Type and Bearing Capacity ■ Seismic Design Criteria • Estimated Settlements • Lateral Earth Pressures • Footing and Wall Drainage • Floor Slab Support • Adjacent Slope Considerations • Fill Placement and Compaction • Wet Weather Earthwork and Erosion Foundation Type and Bearing Capacity We recommend that the Facility be supported q10 v footings. We recommend that the footings be sand and silty sand found at about 1.5 to designed for an allowable bearing pressure may b accordance with the In Council, 2015). Rectangular footings should ha have a minimum width of 18 inche greater than one-half the distance be SHANNON iWILSON, INC. rectangular spread idden, dense to very dense ar on this material may be quare foot. This allowable nd and seismic loading. This is in 5, Section 1806 (International Code idth of 24 inches and continuous footings should ation difference of adjacent footings should not be them. Where adjoining continuous wall footings are designed at different elevations, the upper footing should be stepped down to the lower footing (this may apply if suitably dense subgrade material is located at slightly different depths during excavation). Backfill around footings should be systematically compacted in 8- to 10-inch-thick, loose lifts to a dense condition to satisfy lateral load resistance requirements. We recommend that an experienced geotechnical engineer from our office evaluate the footing subgrade prior to installation of formwork or reinforcing steel. If unsuitable soils are detected at the footing subgrade, further excavation to suitable soils should take place. If footings are to bear on competent native material that has been disturbed during the excavation process, the subgrade soils may require additional mechanical compaction prior to installation of formwork or reinforcing steel. 21-1-22320-001-LI/wp/lkn 21-1-22320-001 Mr. Jeff Feeney, PE KMB Architects January 23, 2017 Page4of9 Seismic Design Criteria HANNON &WILSON, INC. The 2015 IBC (International Code Council, 2015) will likely be utilized as the design basis for this project. We estimated the site class at the project site based on existing subsurface data, our recent reconnaissance, and procedures outlined by the 2015 IBC. Based this data, we recommend that the Facility be classified as Site Class D. The IBC seismic design parameters are based on a ax'. m con 'dered earthquake (MCE), which corresponds to ground motions with a 2 per ent o • . bility • f exceedance within a 2,500-year return period. We used probabilistic seis is haz. al s PSHA) performed by the U.S. Geological Survey (USGS) (Peterson and of rs, 20►:) to stimat he MCE parameters. The PSHA is a method for estima 'ng; gro d +otio s tha • . iders uncertainties and randomness in potential earthquake sourc , si e, ocat n, ecu nce, and source -to -site attenuation. We used the USGS website. 4)!to ob in . PSHA results for a Site Class D condition. Based on the mapped corresponding to Site C1a acceleration of 0.40g, which interval. The maximum consid period are 1.50g and 0.56g, respect in Table 1, and are from the probabilis USGS and using IBC procedures ytto subjected to a design peak ground a semic event with a 2,500-year recurrence celerations for short periods and the 1-second se mapped Ss and Si values near the site are shown ground motion studies completed in 2008 by the USGS. The soil response coefficients FA and Fv corresponding to Site Class D are also provided in Table 1. TABLE 1 2015 INTERNATIONAL BUILDING CODE SEISMIC PARAMETERS FOR NEW STRUCTURES AND GEOTECHNICAL ANALYSES (SITE CLASS D) ' eturn erio h , ani !e ' ; ''s ' s ��' 1_ 1 . ' � ANL t. 2,500 7 0.40 1.50 0.56 1.00 1.50 1.50 0.85 1.00 0.56 Note: PGA') = peak ground acceleration 21-1.22320-001-L1/wp/Ikn 21-1-22320-001 Mr. Jeff Feeney, PE KMB Architects January 23, 2017 Page 5 of 9 SHANNON &WILSON, INC. The project site is located about 3 to 4 miles south of the Seattle Fault Zone, considered to be an active fault structure by the USGS. However, the potential for ground surface rupture is not a design issue at the project site due to its distance to the fault zone and relatively long repeat times for fault movement. Because the site is underlain at shallow depths by dense to very dense glacially overridden material, other earthquake -induced geologic hazards such as liquefaction and slope instability caused by seismic effects are not cor}s(i ered design issues for this project. Estimated Settlements If footing subgrade soil is prepared in compliance wi expect that total footing settlements will be less than expected to be about one-half of total settleme spread footings or along a continuous footin anticipated that the majority of the esti loads are applied due to th gran r Lateral Earth Pressu Lateral loads on footings ni foundation. Passive soil resist based on an equivalent fluid densi resistance includes a factor of safety allowable lateral deformations. This va ations in this letter, we lements are d lightly loaded imately 20 feet. It is r simultaneously as the oil resistance against buried portions of a buried portions of foundations may be calculated unds per cubic foot. This value for passive soil on the ultimate soil strength in order to limit ue is based on the assumption of a horizontal surface extending beyond the footing for a distance of at least two times the depth of embedment. Passive resistance should be ignored in the upper 12 inches unless it is specifically required for lateral stability and the backfill in this zone is densely compacted structural fill. It should be ignored entirely if future development could result in removal of the soils providing lateral resistance. Footings that bear on dense, glacially overridden material may be designed using a coefficient of base friction of 0.50. Footing and Wall Drainage Moist soils were encountered in all potholes during our reconnaissance. We expect this moisture is related to rainfall infiltration. Because of the likelihood of increased seepage during winter months with high levels of precipitation, a subsurface drainage systemis recommended to prevent buildup of hydrostatic pressures around the building behind footings. We recommend that footing subdrains be installed around the perimeter of the building. Footing drains should 21-1-22320-001-L1/wp/lkn 21-1-22320-001 Mr. Jeff Feeney, PE KMB Architects January 23, 2017 Page 6 of 9 SHANNON IWILSON, INC. consist of 4-inch-diameter (minimum) perforated pipe embedded in 8 inches (minimum) of washed %-inch pea gravel or washed 1/4-inch crushed rock. Recommendations regarding subdrainage and backfilling behind walls are presented in Figure 3. Water collecting in footing drains should flow into a storm sewer in a tightline, and downspouts and surface catch basins should be connected to separate storm drain systems with tightlines. Cleanouts should be provided at convenient locations along all drain lines. Th v ound surface should be sloped away from the building to promote rapid runoff. Floor Slab Support We anticipate that the building floor slab for theF overridden soil or compacted structural backfi removal of parking lot asphalt. If disturbed d systematically compacted with a heavy evaluated by an experien and unyielding conditi placed over the approv shown in Figure 3. The have a maximum size of % in cgeo: . A 4-inch-t ade gravel should be compacted to a vibrating plate compactor or smo sheeting should be placed on top of the - apillary break materials to prevent migration of moisture through the concrete slab. oul m al en ess aye aci can e - su that wi b- -xp rin e cava on, the weer. of c ac ly glacially site grading and or slab subgrade should be subgrade should be e to confirm that it is in a dense se crushed rock should then be un than ense and u of drum illary freak between fill and the floor slab, as aded (i.e., predominately of one size) and pe cent fines passing the No. 200 sieve. The 'elding condition with at least two passes of a ller. A vapor barrier consisting of 10 mil plastic A modulus of subgrade reaction of 200 pounds per cubic inch should be used to design the concrete floor slab. Adjacent Slope Considerations During our site visit, we did not observe features typically associated with slope instability or creep, such as surficial cracking or significant tree deformation. The rockery wall at the toe of the slope also appeared undamaged and in good condition. Existing geological data and our site visit observations indicate that the slope is underlain by the same dense, glacially overridden soil found at shallow depths under the project site, and a section of the slope was likely excavated during the construction of the existing parking lot. We understand that construction of the proposed Facility will not include excavation of the adjacent slope. In our opinion, the slope /lk 21-1-22320.001-L1/wpn 21-1-22320-001 Mr. Jeff Feeney, PE KMB Architects January 23, 2017 Page 7 of 9 SHANNION 6WILSON, INC. does not require further reinforcement and does not pose a significant risk of failure, provided that the slope and rockery remain undisturbed during construction. Fill Placement and Compaction Fill around footings or under structural elements such as well -graded sand or sand and gravel having a maximum contain less than 20 percent fines (material passin fraction) and, during wet weather or wet condition fines. Structural fill should not contain organics or be placed in horizontal lifts and compacted to at least maximum density (ASTM International D1557 unyielding condition. The thickness of loose 1 ifts equipment compactors and 8 inches for Unanticipated soil condj excavating potholes. adjustments in his proce recommended to accommod aved areas should consist of relatively cle size of about 3 inches. It should ve, based on the %-inch minus n no more than 5 percent 1. All structural fill should ed Proctor e in a dense and 10 inches for heavy cannot be fully determined by may - : ' ire the Contractor to make structed project. Some contingency fund is co related to unexpected conditions. Wet Weather Earthwork and Ei osion Control Earthwork would most easily be accomhAished during the normally drier months of June through mid -October. It is our opinion that earthwork performed during the wet -weather months will prove costlier. The condition of silty sand will deteriorate rapidly when exposed to moisture and construction activity, which could lead to deeper footing excavations than anticipated. The following recommendations are applicable if earthwork is to be accomplished in wet weather or in wet conditions: • Fill material should consist of clean, granular soil, of which not more than 5 percent by dry weight passes the No. 200 mesh sieve, based on wet -sieving the fraction passing the 3/4-inch sieve. The fines should be non -plastic. Such soil would need to be imported to the site. The identification of suitable wet -weather backfilling material should be made by a geotechnical engineer from our firm experienced in wet -weather construction. • The ground surface in the construction area should be sloped and sealed with a smooth -drum, vibratory roller or equivalent to promote the rapid runoff of 21-1-22320-001-L1/wp/Ikn 21-1-22320-001 Mr. Jeff Feeney, PE KMB Architects January 23, 2017 Page 8 of 9 SHANNON 6 MLSON, INC. precipitation, to prevent surface water from flowing into excavations, and to prevent ponding of water. Soils that become too wet for compaction should be removed and replaced with clean granular soil. ■ Excavation and placement of structural fill material should be observed on a full-time basis by a geotechnical engineer or technician experienced in wet -weather earthwork to determine that all unsuitable materials are roved and suitable compaction and site drainage is achieved. • Contractor should cover work areas, so ditching, sumps, dewatering, and other permit proper completion of the work. B geotextile silt fences should be strategic.11 erosion. The above recommendations for wet wea specifications. The analyses, conclusions, conditions as they presently e representative of the subsurface everywhere are not significantly di during construction, subsurface conditi opes with plastic; sloping, e employed as necessary to attles, and/or movement and orporated into the contract ented in this letter are based on the site that e results of our site reconnaissance are ughout the site; i.e., the subsurface conditions n those encountered during our reconnaissance. If, s different from those encountered during our reconnaissance are observed or appear to be present, we should be advised at once so that we can review these conditions and reconsider our recommendations where necessary. If there is a substantial lapse of time between the submission of this letter and the start of construction, or if conditions have changed due to natural causes or construction operations at or adjacent to the site, it is recommended that this letter be reviewed to determine the applicability of the conclusions and recommendations concerning the changed conditions and the time lapse. The scope of our services for this letter did not include any environmental assessment or evaluation regarding the presence or absence of wetlands or hazardous or toxic materials in the soil, surface water, groundwater, or air on or below or around this site. For any site located near a steep slope, such as the subject property, there is a potential for slope instability that could affect a structure near the slope. In addition to natural factors including earthquakes, heavy precipitation, steep topography, and soil and groundwater conditions, other 21-1-22320.001-1,14p/1kn 21-1-22320-001 Mr. Jeff Feeney, PE KMB Architects January 23, 2017 Page 9 of 9 SHANNON Fa MLSON, INC. potential causes of instability include water leaks, pipe breaks, improper or inappropriate surface drainage, lack of maintenance of drains or vegetative cover, filling or saturation at the top of the slope or excavation at the bottom of the slope, unwise development by adjacent property owners, or other actions, events, or unknown conditions that could cause slope instability. This letter was prepared for the exclusive use of KMB Ar itects and their design consultants in the design of the Facility. It should be made availabJ to . ro pp tive contractors and/or the Contractor for information on the factual data onl and o . s a wa r anty of subsurface conditions such as those discussed in this letter. Th en o : "Im •rtant Information About Your Geotechnical Report" has been prepared to ass'.: you . d o. ers derstanding the use and limitations of our reports. Please call me at (206) 695-6875 if you hays :ny ou .tion e: rdin: the recommendations in this letter. We appreciate the opportune Sincerely, Justin P.B. Cook Geotechnical Staff Martin W. Page, PE, LEG Vice President Geotechnical Engineer JPC:MWP/jpc Enc: References Figure 1 — Vicinity Map Figure 2 — Site Plan Figure 3 — Typical Wall Subdrainage and Backfill Important Information About Your Geotechnical/Environmental Report 21-1-22320-001-L1/wp/Ikn 21-1-22320-001 SHANNON WILSON, INC. REFERENCES International Code Council, Inc., 2015, International building code: Country Club Hills,111., International Code Council, Inc., 690 p. Petersen, M. D.; Frankel, A. D.; Harmsen, S. C.; and others, 2008, Documentation for the 2008 update of the national seismic hazard maps: U.S. Geological Survey Open -File Report 2008-1128, available: http://pubs.usgs.gov/of/2008/1128. Troost, K. A. and Booth, D. B., 2008, Geology of Seattle and the Seattle area, Washington, in Baum, R. L.; Godt, J. W.; and Highland, L. M., e Landslides and engineering geology of the Seattle, Washington, area: Bolder, Co1 eo 1 Society of America Reviews in Engineering Geology XX, p. 1-35. U.S. Geological Survey (USGS), 2014, U.S. seismic http://earthquake.usgs.gov/designmaps/us/app 21-1.22320.001-L1-ReflwpNcn ailable: 01, 2017. 21-1-22320-001 E E 0 J 4 Googkeartf- 0 • 700 1400 Approximate Scale in Feet NOTE Map adapted from aerial imagery provided by Google Earth Pro, reproduced by permission granted by Google Earth M Mapping Service. LI S 126th St ; PROJECT LOCATION i Tukwila Bus Driver Facility Tukwila, Washington VICINITY MAP January 2017 21-1-22320-001 SHIINNON6WIL.SON,INC. FIG. 1 GEC/MC.1C .0 ENVIRONMENTAL CONSULT.. Fa 1 a @ -. t ,n t r L € ter yr CV iV C s.r `y uF $y UP 'CV - x X* X* f XD ijc- Cis g Filename: J:\211\22320\001\21-1-22320-001 Site Plan.dwg Layout: Fig 2 Date: 01-20-2017 Login: mjm Mi. P N 0 S 128th St PH-1 PH-2 PH-3 50 100 Approximate Scale in Feet NOTE Map adapted from aerial imagery provided by Google Earth Pro, reproduced by permission granted by Google Earth TM Mapping Service. PH-1 MIN 0 LEGEND Pothole Designation and Approximate Location Approximate Location of Proposed Facility 011 eM lew•ae� use Tukwila Bus Driver Facility Tukwila, Washington January 2017 SITE PLAN 21-1-22320-001 SHANNON & WILSON, INC. Geotechnical and Environmental Consultants FIG. 2 Sloped to Drain away from Structure Pavement or 18" Impervious Soil Wall Backfill (See Note 1) Excavation Slope Contractor's Responsibility 8" Min. Cover of Pea Gravel (6" min. on sides of pipe; 2" below) Washed Pea Gravel/Crushed Gravel Perimeter/Subdrain Pipe MATERIALS Drainage Sand & Gravel with the Following Specifications (WSDOT 9-03.13): Sieve Size 3/4" 1/2" No. 4 No. 10 No. 50 No. 100 No. 200 (by wet sieving) 18" Min. 0 0, U 0 a°, a\°a" 1 2" Max. % Passing by Weight 100 90 to 100 57 to 100 40 to 100 3 to 30 0 to 4 0 to 3.0 (non -plastic) SUBDRAIN PIPE NOTES 1. 4" minimum diameter perforated (perforations down) or slotted pipe; tight joints; sloped to drain (6"/100' min. slope). 2. Provide clean -outs. 3. Perforated pipe holes (3/16" to 3/8" dia.) to be in lower half of the pipe with lower quarter segment unperforated for water flow. 4. Slotted pipe to have 1/8" maximum width slots. 5. Pipe crown should be at least as low as the top of the footing. Below -Grade Wall Drainage Sand & Gravel or Geocomposite Drain Board if Casting Wall Directly Against Temporary Shoring Wall Damp Proofing Floor Slab 0 ,0 U oo p G o 4' Min.-1 4" Min Vapor Retarder (See Note 4) ° '018" Min o o`'. o o,. ° o .o Washed Pea Gravel / Crushed Gravel for Capillary Break or clean, Crushed Rock for Working Surface Not to Scale NOTES 1. Structural fill behind wall should consist of free -draining granular soil with no more than 5% fines, by weight, passing No. 200 sieve based on wet sieving the minus 3/4" fraction, fines to be non -plastic. 2. Backfill behind wall should be compacted with hand -operated vibrating plate compactor (not a tamper). Heavy equipment should not be operated near the wall as such equipment could increase lateral earth pressures and possibly damage the wall. 3. All backfill should be placed in layers not exceeding 8" loose thickness and densely compacted. Beneath paved or sidewalk areas, compact to at least 95% Modified Proctor maximum density (ASTM: D1557-70 Method C). Otherwise compact to 92% minimum. 4. A vapor retarder should be placed on top of the capillary break material where floors are covered with carpet, linoleum, or other floor covers. Tukwila Bus Driver Facility Tukwila, Washington TYPICAL WALL SUBDRAINAGE AND BACKFILL January 2017 21-1-22320-001 SHANNON & WILSON, INC. Geotechnical and Environmental Consultants FIG. 3 ISHANNON & WILSON, INC. Geotechnical and Environmental Consultants Attachment to and part of Report 21-1-22320-001 Date: January 23, 2017 To: Mr. Jeff Feeney, PE K1VIB Architects IMPORTANT INFORMATION ABOUT YOUR GEOTECHNICAL/ENVIRONMENTAL REPORT CONSULTING SERVICES ARE PERFORMED FOR SPECIFIC PURPOSES AND FOR SPECIFIC CLIENTS. Consultants prepare reports to meet the specific needs of specific individuals. A report prepared for a civil engineer may not be adequate for a construction contractor or even another civil engineer. Unless indicated otherwise, your consultant prepared your report expressly for you and expressly for the purposes you indicated. No one other than you should apply this report for its intended purpose without first conferring with the consultant. No party should apply this report for any purpose other than that originally contemplated without first conferring with the consultant. THE CONSULTANT'S REPORT IS BASED ON PROJECT -SPECIFIC FACTORS. A geotechnical/environmental report is based on a subsurface exploration plan designed to consider a unique set of project -specific factors. Depending on the project, these may include: the general nature of the structure and property involved; its size and configuration; its historical use and practice; the location of the structure on the site and its orientation; other improvements such as access roads, parking lots, and underground utilities; and the additional risk created by scope -of -service limitations imposed by the client. To help avoid costly problems, ask the consultant to evaluate how any factors that change subsequent to the date of the report may affect the recommendations. Unless your consultant indicates otherwise, your report should not be used: (1) when the nature of the proposed project is changed (for example, if an office building will be erected instead of a parking garage, or if a refrigerated warehouse will be built instead of an unrefrigerated one, or chemicals are discovered on or near the site); (2) when the size, elevation, or configuration of the proposed project is altered; (3) when the location or orientation of the proposed project is modified; (4) when there is a change of ownership; or (5) for application to an adjacent site. Consultants cannot accept responsibility for problems that may occur if they are not consulted after factors which were considered in the development of the report have changed. SUBSURFACE CONDITIONS CAN CHANGE. Subsurface conditions may be affected as a result of natural processes or human activity. Because a geotechnical/environmental report is based on conditions that existed at the time of subsurface exploration, construction decisions should not be based on a report whose adequacy may have been affected by time. Ask the consultant to advise if additional tests are desirable before construction starts; for example, groundwater conditions commonly vary seasonally. Construction operations at or adjacent to the site and natural events such as floods, earthquakes, or groundwater fluctuations may also affect subsurface conditions and, thus, the continuing adequacy of a geotechnical/environmental report. The consultant should be kept apprised of any such events, and should be consulted to determine if additional tests are necessary. MOST RECOMMENDATIONS ARE PROFESSIONAL JUDGMENTS. Site exploration and testing identifies actual surface and subsurface conditions only at those points where samples are taken. The data were extrapolated by your consultant, who then applied judgment to render an opinion about overall subsurface conditions. The actual interface between materials may be far more gradual or abrupt than your report indicates. Actual conditions in areas not sampled may differ from those predicted in your report. While nothing can be done to prevent such situations, you and your consultant can work together to help reduce their impacts. Retaining your consultant to observe subsurface construction operations can be particularly beneficial in this respect. Page 1 of2 1/2017 A REPORT'S CONCLUSIONS ARE PRELIMINARY. The conclusions contained in your consultant's report are preliminary because they must be based on the assumption that conditions revealed through selective exploratory sampling are indicative of actual conditions throughout a site. Actual subsurface conditions can be discerned only during earthwork; therefore, you should retain your consultant to observe actual conditions and to provide conclusions. Only the consultant who prepared the report is fully familiar with the background information needed to determine whether or not the report's recommendations based on those conclusions are valid and whether or not the contractor is abiding by applicable recommendations. The consultant who developed your report cannot assume responsibility or liability for the adequacy of the report's recommendations if another party is retained to observe construction. THE CONSULTANT'S REPORT IS SUBJECT TO MISINTERPRETATION. Costly problems can occur when other design professionals develop their plans based on misinterpretation of a geotechnical/environmental report. To help avoid these problems, the consultant should be retained to work with other project design professionals to explain relevant geotechnical, geological, hydrogeological, and environmental findings, and to review the adequacy of their plans and specifications relative to these issues. BORING LOGS AND/OR MONITORING WELL DATA SHOULD NOT BE SEPARATED FROM THE REPORT. Final boring logs developed by the consultant are based upon interpretation of field logs (assembled by site personnel), field test results, and laboratory and/or office evaluation of field samples and data. Only final boring logs and data are customarily included in geotechnical/environmental reports. These final logs should not, und.er any circumstances, be redrawn for inclusion in architectural or other design drawings, because drafters may commit errors or omissions in the transfer process. To reduce the likelihood of boring log or monitoring well misinterpretation, contractors should be given ready access to the complete geotechnical engineering/environmental report prepared or authorized for their use. If access is provided only to the report prepared for you, you should advise contractors of the report's limitations, assuming that a contractor was not one of the specific persons for whom the report was prepared, and that developing construction cost estimates was not one of the specific purposes for which it was prepared. While a contractor may gain important knowledge from a report prepared for another party, the contractor should discuss the report with your consultant and perform the additional or alternative work believed necessary to obtain the data specifically appropriate for construction cost estimating purposes. Some clients hold the mistaken impression that simply disclaiming responsibility for the accuracy of subsurface information always insulates them from attendant liability. Providing the best available information to contractors helps prevent costly construction problems and the adversarial attitudes that aggravate them to a disproportionate scale. READ RESPONSIBILITY CLAUSES CLOSELY. Because geotechnical/environmental engineering is based extensively on judgment and opinion, it is far less exact than other design disciplines. This situation has resulted in wholly unwarranted claims being lodged against consultants. To help prevent this problem, consultants have developed a number of clauses for use in their contracts, reports, and other documents. These responsibility clauses are not exculpatory clauses designed to transfer the consultant's liabilities to other parties; rather, they are definitive clauses that identify where the consultant's responsibilities begin and end. Their use helps all parties involved recognize their individual responsibilities and take appropriate action. Some of these definitive clauses are likely to appear in your report, and you are encouraged to read them closely. Your consultant will be pleased to give full and frank answers to your questions. The preceding paragraphs are based on information provided by the ASFE/Association of Engineering Finns Practicing in the Geosciences, Silver Spring, Maryland Page 2 of 2 1/2017 Section 7 Other Permits Technical Information Report Tukwila Public Schools Transportation Building 21160789.10 7.0 Other Permits The project area is less than 1 acre; therefore, the project does not require a National Pollution Discharge Elimination System (NPDES) Permit and Construction Stormwater General Permit from Washington State Department of Ecology. Permits will be required from the Water District #125 and Valley View Sewer District for water and sewer services. Technical Information Report . Tukwila Public Schools Transportation Building 2160789.10 7-1 DWB� Section 8 CSWPPP Analysis and Design Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 DWB� 8.0 CSWPPP Analysis and Design The proposed improvements will comply with guidelines set forth in the KCSWDM and the KCSPPM. The plan will include erosion/sedimentation control features designed to prevent sediment -laden runoff from leaving the site or from adversely affecting critical water resources during construction. A draft stormwater pollution prevention and spill plan has been developed. 8.1 ESC Plan Analysis and Design (Part A) The erosion potential of the site is influenced by four major factors: soil characteristics, vegetative cover, topography, and climate. Erosion/sedimentation control is achieved by a combination of structural measures, cover measures, and construction practices that are tailored to fit the specific site. The following measures will be used to control sedimentation/erosion processes: • Clearing Limits: All areas to remain undisturbed during the construction of the project will be delineated prior to any site clearing or grading. • Cover Measures: Disturbed areas will be covered, as required in Section D.2.1.2 of the KCSWDM. • Construction Entrances: A stabilized construction entrance consisting of existing asphalt of the parking lot will be used by construction traffic. • Perimeter Protection: Filter fabric fencing will be provided along the eastern and southern perimeters to prevent sediment laden runoff migration from the site. • Storm Drain Inlet Protection: Filter fabric protection will be provided on all new catch basins downstream of construction activities. • Surface Water Control: Interceptor ditches and straw wattles will be used to direct runoff from construction area to a sediment trap and/or existing stormwater pond. Temporary sedimentation trap and/or existing stormwater pond will be used to contain sediment -laden water, and to control and monitor releases from site. All stormwater will be tested for NTU levels above background NTU to determine treatment requirements prior to discharge from the site. • Dust Control: Dust control measures will be implemented when exposed soils are dry to the point that wind transport is possible and roadways, drainage ways, or surface waters are likely to be impacted. 8.1.1 Sensitive Area Restrictions Any construction that will result in disturbed areas in close proximity to steep slope shall be subject to the special provisions below. Whenever possible, phase the project so that construction in these areas is limited to the dry season. The city may require more conservative BMPs, including more stringent cover requirements. 8.1.2 Sensitive Area Special Provisions Any project that disturbs areas in close proximity to the steep slope or associated buffer has the potential to damage water resources, even if the project is relatively small. While it is difficult to require specific measures for such projects because the ESC plan must be site specific, the Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 8-1 0130111 following recommendations have been discussed with the General Contractor and incorporated into the plan as appropriate: • Phasing of the project to avoid construction on or within onsite sensitive areas and their associated buffers during the months of November through February. • Quick and timely site stabilization requirements. • Additional perimeter protection, including high -visibility construction fencing in addition to silt fencing. 8.1.3 ESC Maintenance All ESC measures shall be maintained and reviewed on a regular basis, as prescribed in the maintenance requirements of each BMP proposed. 8.1.4 ESC Supervisor The applicant will designate an ESC supervisor who shall be responsible for maintenance and review of ESC, and for compliance with all permit conditions relating to ESC. The ESC supervisor must be available for rapid response to ESC problems. The ESC supervisor will review the site at least once a month during the dry season, weekly during the wet season, and within 24 hours of significant storms. The City of Tukwila may require that a written record of these reviews be kept onsite with copies submitted to City of Tukwila within 48 hours (also see Section 8.2.3 below). The City may also require that the applicant designate an ESC supervisor with demonstrated expertise in ESC to perform these reviews and to be responsible for ESC due to the sensitive areas on or within the project site. The qualifications of such a person shall include at least several years of construction supervision or inspection. 8.1.5 Documentation If City of Tukwila requires that a written record be maintained and a standard ESC Maintenance Report may be used. A copy of all required maintenance reports shall be kept onsite throughout the duration of construction. Detailed maintenance requirements for each ESC measure are provided in Section 8-2. 8.1.6 Review Timing During the wet season, weekly reviews shall be carried out every 6 to 8 calendar days. During the dry season, monthly reviews shall be carried out within 3 days of the calendar day for the last inspection (e.g., if an inspection occurred on June 6, then the next inspection must occur between July 3 and July 9). Reviews shall also take place within 24 hours of significant storms. In general, a significant storm is one with more than 0.5 inch of rain in 24 hours or Tess. 8.2 Stormwater Pollution Prevention and Spill (SWPPS) Plan Design (Part B) The below draft SWPPS Plan design is awaiting input from the Contractor and the Owner for specific items. An updated plan will be provided with the building permit submittal. The Stormwater Pollution Prevention and Spill (SWPPS) Plan includes three elements: a site plan, a pollution prevention report, and a spill prevention and cleanup report. This report includes identifying the expected sources of potential pollution and spills that may occur during construction, and works to develop a plan to prevent pollution and spills. It also develops a plan Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 8-2 A HBO to mitigate spills that may occur. The SWPPS Plan will be kept onsite at all times during construction. The general contractor will be responsible to ensure that subcontractors are aware of the SWPPS Plan and a form or record will be provided stating that all subcontractors have read and agree to the SWPPS Plan. An employee training worksheet is provided tor the Contractors use (see Figure 8-3). A SWPPS Site Plan will be submitted. The SWPPS Site Plan, Pollution Prevention Report, and Spill Prevention and Cleanup Report have been developed and BMPs have been selected based on Section 2.3.1.4 of the KCSWDM and the KCSPPM. (The below plan will be updated with input from the Owner and Contractor.) 8.2.1 Pollution and Spill Prevention Source Controls and BMPs The sources of pollution and spills have been identified below, and the BMPs to be used for each source for prevention of both pollution and spills have been listed below: Liquids that will be handled or stored onsite are still being assessed by the Owner. Tight -fitting lids shall be placed on all containers containing liquids. Containers shall be covered with plastic sheeting during rain events. Drip pans or absorbent materials shall be placed beneath all mounted container taps and at all potential drip and spill locations during filling and unloading of containers. Containers shall be stored such that if a container leaks or spills, the contents will not be discharged, flow, or be washed into the storm drainage system, surface water, or groundwater. Appropriate spill cleanup materials shall be stored and maintained near the container storage area. Storage area shall be swept and cleaned as needed. Area shall not be hosed down such that water drains to the storm drainage system or neighboring areas. Containers shall be checked daily for Teaks and spills and replaced as necessary. All spilled liquids will be collected and disposed of properly. Spill control devices shall be routinely inspected on a weekly basis. Dry pesticides and fertilizers if stored onsite shall be covered with plastic sheeting or stored in a sealed container. Materials shall be stored on pallets or another raised method to prevent contact with stormwater runoff. Alternatively, the materials shall be contained in a manner such that if the container leaks or spills, the contents will not discharge, flow, or be washed into the storm drainage system, surface waters, or groundwater. Maintenance requirements are the same as liquid materials described above. Chemicals that will be handled or stored onsite are still being assessed by the Owner. BMPs and Maintenance requirements are the same as liquids unless otherwise listed. Soil, sand, and other erodible materials shall be stored onsite as shown on TESC detail plans (to be provided). Fueling shall not occur onsite. If fueling does occur onsite, the Contractor shall develop a containment plan for spills and provide lighting and signage if fueling occurs at night in conformance with the KCSPPM. Maintenance and repair of vehicles shall not occur onsite. If maintenance or repair of vehicles does occur onsite, the Contractor shall develop a spill prevention plan in Conformance with the KCSPPM. Truck wheel washing is not expected at a large scale due to small area of disturbance for the project. All other vehicle washing shall occur in a controlled manner, such that runoff is collected and disposed of in a legal manner. Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 8-3 A �00 Rinsing of hand tools shall occur as located on the TESC plans (to be provided with the building permit submittal). Water for washing shall be collected and disposed of in a legal manner. Contaminated soils are not expected. If encountered, contaminated soils will be covered with plastic to prevent stormwater from carrying pollutants away to surface or ground waters. Appropriate spill cleanup materials, such as brooms, dustpans, vacuum sweepers, etc., shall be stored and maintained near the storage area. Storage area shall be swept and cleaned as needed. Area shall not be hosed down such that water drains to the storm drainage system, groundwater, surface water, or neighboring areas. During concrete and asphalt construction, the Contractor shall provide the following BMPs or equivalent measures, methods or practices as required: 1. Drip pans, ground cloths, heavy cardboard or plywood wherever concrete, asphalt and asphalt emulsion chunks and drips are likely to fall unintentionally, such as beneath extraction points from mixing equipment. 2. Storm drain inlet protection is being provided as shown on TESC plans (to be provided). Storm drains shall be covered to prevent concrete and asphalt from entering the storm system. 3. Concrete, concrete slurry and rinse water shall be contained and collected and shall not be washed or allowed to discharge into storm drain, ditch, or neighboring parcels. All collected runoff shall be properly disposed of. Contractor shall designate an area where application and mixing equipment cleaning will be conducted. Rinse water and slurry shall be collected, contained, and disposed of in a legal manner. 5. Routine maintenance: the pouring area shall be swept at the end of each day or more frequently if needed. Loose aggregate chunks and dust shall be collected. Areas shall not be hosed down. The Contractor may provide the following optional BMPs if the above do not provide adequate source controls: 1. Cover portable mixing equipment with an awning or plastic sheeting to prevent contact with rainfall. 2. Provide catch basin inserts configured for pollutant removal. pH elevated water shall not be discharged from the site. Contractor shall monitor stormwater for pH prior to discharging from the site. Contractor shall implement a pH treatment plan if pH is not within the natural range. 8.2.2 Responsible Personnel and Contact Information [name] with [company] shall be responsible for pollution and spill prevention and cleanup and can be contacted at [phone] or _[email]_. Contractor shall fill out the attached Pollution Prevention Team Worksheet (see Figure 8-3). Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 8-4 8.2.3 Pollution and Spill Prevention Worksheets Pollution prevention, BMP implementation reports, material inventory worksheets, pollutant source identification worksheet, and spill/leak report may be found attached as Figure 8-3. 8.2.4 Disposal Methods Contractor shall dispose of contaminated soils and water in a legal manner. Options include the following: Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 8-5 081011 Section 8.0 Figures Figure 8-1 ESC and SWPPS Measures (to be included) Figure 8-2 ESC Maintenance Report (to be included) Figure 8-3 Pollution Prevention Inspection Reports, Spill Prevention Monitoring, and Spill Incident Reports (to be included) Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 DwD� Section 9 Bond Quantities, Facility Summaries, and Declaration of Covenant Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 A 9.0 Bond Quantities, Facility Summaries, and Declaration of Covenant A Bond Quantity Worksheet will be provided, if requested by the City. Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 9-1 A HBO Section 9.0 Figures - Figures to be provided, if required. Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 DWB� Section 10 Operations and Maintenance Plan S Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 A eo� 10.0 Operations and Maintenance Plan The drainage facilities detailed in this report will be privately owned and maintained. 10.1 Facility Descriptions Conveyance Systems Refreshed swale will transport stormwater runoff from redeveloped portion of the property to the existing conveyance system and stormwater pond, then to the downstream system within South 128th Street. To work properly, swales and pipes must be kept free of silt and other debris. Vegetated Swales Vegetated swales are used to convey stormwater runoff to the existing conveyance system and stormwater pond. Plants are used to help dissipate energy and provide pollution removal. Standing water should not be present, as water should flow downhill to a catch basin. Swales shall be free of trash and debris, and vegetation should be maintained. 10.2 Maintenance Tasks A Storm Facility Maintenance Checklist Worksheet will be provided. 10.3 Maintenance Requirements A copy of the Maintenance Requirements for Flow Control, Conveyance, and WQ Facilities will be provided. Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 10-1 Section 10.0 Figures - Figures to be provided Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 Section 11 Conclusion Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 A wD� 11.0 Conclusion The proposed site improvements have been designed to meet the 2016 KCSWDM as adopted by the City of Tukwila. The stormwater management facilities have been designed to provide the following: • Flow Control BMPs for LID have been assessed for applying to the project site if feasible. • Refreshed swale will be designed to convey the 25-year peak flow and convey as much of the 100-year peak flow to prevent erosion and flooding. Any overflow from the swale will discharge to the natural location of the project site. The design and calculations for the refreshed swale will be included in Section 5.0 with the building permit submittal. This analysis is based on data and records either supplied to or obtained by AHBL. These documents are referenced within the text of the analysis. The analysis has been prepared utilizing procedures and practices within the standard accepted practices of the industry. We conclude that this project, as schematically represented, will not create any new problems within the downstream drainage system. This project will not noticeably aggravate any existing downstream problems relative to either water quality or quantity. AHBL, Inc. ea/ Jared McDonald, EIT Project Engineer J M/DT/Isk January 2017 Technical Information Report Tukwila Public Schools Transportation Building 2160789.10 O ooGo *rat p H B L rAC 0 ;i A S E A rT L E 2215 North 30th Street 1200 6th Avenue Suite 300 Suite 1620 Tacoma, WA 98403-3350 Seattle, WA 98101-3123 253.383.2422 ra 206.267.2425111 253.383.2572 FAX 206.267.2429 FAx ry'; is F .-1 4 tF_a 827 West 1n Avenue 2715 Saint Andrews Loop Suite 301 Suite F Spokane, WA 99201-3912 Pasco, WA 99301-3386 509.252.5019 509.380-5883 509.315.8862 509.380-5885 ,. www.ahbl.com — • rolluda architects architecture planning interior design 105 South Main Street, Suite 323 • Seattle, Washington 98104 • 206.624.4222 (p) • 206.624.4226 (f) info@rolludaarchitects.com (e) • www.rolludaarchitects.com (w) Tukwila Building Department Design Review Criteria Tukwila School District - Transportation Building CUP Submittal CRITERIA FOR COMMERCIAL AND LIGHT INDUSTRIAL DEVELOPMENTS 1. Relationship of Structure to Site a. The site should be planned to accomplish a desirable transition with the streetscape and to provide for adequate landscaping and pedestrian movement. Response: The site design will provide new shrubs and ground cover enhancements to the existing tree lined area along South 128 street and East Marginal Way South. b. Parking and service areas should be located, designed and screened to moderate the visual impact of large paved areas. Response: Existing parking is currently screened with perimeter trees and shrubs along all edges. Additional shrubs and ground cover will be added to further enhance/moderate the visual impact of parking area. c. The height and scale of each building should be considered in relation to its site. Response: Height and scale of new transportation building is in line with residential buildings around existing site. 2. Relationship of Structure and Site to Adjoining Area a. Harmony in texture, line and masses is encouraged. Response: New transportation Building will have a residential scale in terms of mass. Is lines and texture will draw upon our use of the typical exterior finishes used in residential design. b. Appropriate landscape transition to adjoining properties should be provided. Response: Existing landscape will be enhanced with new shrubs and ground cover to provide improved transitions to adjoining properties. c. Public buildings and structures should be consistent with the established neighborhood character. Response: Design of new transportation building will have a residential design esthetic that seeks to blend in with current neighborhood character. rolluda architects architecture planning interior design 105 South Main Street, Suite 323 • Seattle, Washington 98104 • 206.624.4222 (p) • 206.624.4226 (f) info@rolludaarchitects.com (e) • www.rolludaarchitects.com (w) d. Compatibility of vehicular and pedestrian circulation patterns and loading facilities in terms of safety, efficiency and convenience should be encouraged. Response: Building in located on site such that it will complement current bus parking and driveways. Pedestrian walkway has been identified for safety and efficiency of use. e. Compatibility of on -site vehicular circulation with street circulation should be encouraged. Response: Existing compatibility of on -site vehicular circulation with street circulation will not be change from current configuration. Exit and entry points will remain the same. 3. Landscape and Site Treatment a. Where existing topographic patterns contribute to beauty and utility of a development, they should be recognized, preserved and enhanced. Response: Existing topographic patterns will remain the same. b. Grades of walks, parking spaces, terraces and other paved areas should promote safety and provide an inviting and stable appearance. Response: Existing grade for parking and walkways will remain as current locations. Addition of ADA parking stall and marked walkway on site for added access and safety. d. Landscape treatment should enhance architectural features, strengthen vistas and important axis, and provide shade. Response: Existing site perimeter contains mature trees and shrubs. Additional scrubs and ground cover will enhance and strengthen and already established landscape. e. In locations where plants will be susceptible to injury by pedestrian or motor traffic, mitigating steps should be taken. Response: Perimeter landscape will not be susceptible to pedestrian or motor traffic damage. f. Where building sites limit planting, the placement of trees or shrubs in paved areas is encouraged. Response: Building will not limit perimeter planting. Building site takes advantage of existing paved area in order to maintain the current level of planting with the addition of shrubs and ground cover at perimeter. rolluda architects architecture planning interior design 105 South Main Street, Suite 323 • Seattle, Washington 98104 • 206.624.4222 (p) • 206.624.4226 (f) info@rolludaarchitects.com (e) • www.rolludaarchitects.com (w) g. Screening of service yards and other places, which tend to be unsightly, should be accomplished by the use of walls, fencing, planting or combinations of these. Screening should be effective in winter and summer. Response: Screening of waste bin with enclosed wall at 8 foot high and gated fence at remote edge of building. h. In areas where general planting will not prosper, other materials such as fences, walls, and paving of wood, brick, stone or gravel may be used. Response: We have existing mature planting areas in addition to adding shrubs and ground cover. i. Exterior lighting, when used, should enhance the building design and the adjoining landscape. Lighting standards and fixtures should be of a design and size compatible with the building and adjacent area. Lighting should be shielded, and restrained in design. Excessive brightness and brilliant colors should be avoided. Response: Exterior light at build entries with motion sensor will be added. Light fixture will be shield and be compliment design. No excessive lighting levels will be added. 4. Building Design a. Architectural style is not restricted; evaluation of a project should be based on quality of design and relationship to surroundings Response: Transportation building design will compliment to residential character of existing neighborhood. It is meant to blend in with exist site and surrounding area. b. Buildings should be to appropriate scale and be in harmony with permanent neighboring developments. Response: Transportation building design will compliment to residential character of existing neighborhood. It is meant to blend in with exist site and surrounding area. c. Building components, such as windows, doors, eaves, and parapets, should have good proportions and relationship to one another. Building components and ancillary parts shall be consistent with anticipated life of the structure. Response: Design components have appropriate design proportions for the residential scale we seek to achieve. Building components are in line with typical structures and anticipated use. rolluda architects architecture planning interior design 105 South Main Street, Suite 323 • Seattle, Washington 98104 • 206.624.4222 (p) • 206.624.4226 (f) info@rolludaarchitects.com (e) • www.rolludaarchitects.com (w) d. Colors should be harmonious, with bright or brilliant colors used only for accent. Response: Design will utilize neutral earth tone colors with any bright colors occurring as accent features. f. Mechanical equipment or other utility hardware on roof, ground or buildings should be screened from view. Response: Mechanical heat pump will be located at rear of building with screen wall. g. Exterior lighting should be part of the architectural concept. Fixtures, standards and all exposed accessories should be harmonious with building design. Response: Exterior site lighting will remain at current level. Building entry lighting will compliment design and residential esthetic. h. Monotony of design in single or multiple building projects should be avoided. Variety of detail, form and fitting should be used to provide visual interest. Response: Design seeks to blend into neighborhood. Use of materials which promote this feeling and provide variety on the exterior are utilized. 5. Miscellaneous Structures and Street Furniture a. Miscellaneous structures and street furniture should be designed to be part of the architectural concept of design and landscape. Materials should be compatible with buildings, scale should be appropriate, colors should be in harmony with buildings and surroundings, and proportions should be to scale Response: No miscellaneous structures or street furniture. b. Lighting in connection with miscellaneous structures and street furniture should meet the guidelines applicable to site, landscape and (buildings. Response: No miscellaneous structures or street furniture lighting. Consistency with adopted plans and regulations (TMC 18.100.030) 6. Demonstrate the manner in which the proposal is consistent with, carries out and helps implement applicable state laws and the regulations, policies, objectives and goals of the City of Tukwila Comprehensive Plan, the City of Tukwila's Development Regulations and other official laws, policies and objectives of the City of Tukwila. rolluda architects architecture planning interior design 105 South Main Street, Suite 323 • Seattle, Washington 98104 • 206.624.4222 (p) • 206.624.4226 (f) info@rolludaarchitects.com (e) • www.rolludaarchitects.com (w) Response: Rolluda Architects has developed the design of the Tukwila School District Transportation Building in accordance with applicable state laws and regulations and the regulations, policies, objectives and goals of the City of Tukwila Comprehensive Plan, the City of Tukwila's Development Regulations and other official laws, policies and objectives of the city of Tukwila. Gary Scott, AIA Senior Architect Rolluda Architects 11 r January 25, 2017 Ms. Minnie Dhaliwal, Planning Supervisor City of Tukwila Department of Community Development 6400 Southcenter Boulevard Tukwila, WA 98188 Project: Tukwila School District Transportation Building, AHBL No. 2160566.30 Subject: Project Description and Consistency with CUP Criteria Dear Minnie: Please find enclosed Tukwila School District's application for a Conditional Use Permit (CUP) and Design Review for a new Transportation Building. Please find enclosed the following: • CUP Application Checklist • CUP Application Form (5 copies) • Design Review Application Checklist • Design Review Application Form (5 copies) • Response to Design Review Criteria • Plan Set (5 copies) including: o Site Plan o Building Elevations o Floor Plan o Roof Plan o Landscape Plan o Civil Plans • Set of plans redluced to 8'A" x 11" • Affidavit of Ownership and Hold Harmless Permission to Enter Property • Tukwila School District SEPA Lead Agency Letter • Sewer and water availability letters • Technical Information Report • Geotechnical Analysis • Mailing labels for properties within 500 feet and map showing 500-foot buffer Project Description Tukwila School District is proposing a new office building at the corner of East Marginal Way S. and S. 128th Street, on Parcel 238420-0010 (site address is 12801 E. Marginal Way S.). The site is 61,440 square feet (1.14 acres) in size and is currently operating as the District's school bus storage facility. The site currently has 16 bus storage spaces and 29 standard vehicle parking spaces. A shed is the only existing structure on the site and it will be removed with this proposal. 1200 6* Avenue Suite 1620 Seattle, WA 98101-3117 206.267.2425 Ms. Minnie Dhaliwal, Planning Supervisor January 25, 2017 2160566.30 Page 2 of 4 The proposal is to build a new 2,515-square foot building for daily administrative use by the bus drivers. The building will provide needed facilities for the drivers and support the daily transportation operations for the District. The building will include a conference/training room, break room, two offices, storage room, mechanical closet, janitorial closet, lobby, and restrooms. Site improvements will result in 17 bus parking spaces (1 additional) and 25 standard vehicle parking spaces (4 less). A new 5-foot wide painted pedestrian pathway will be provided to the building from S.128th Street. Vehicular access to the site will be the same as before, with a separated entry and exit point from S. 128th Street. The proposed building will be subject to design review. Perimeter landscaping will be provided per the City of Tukwila's Municipal Code. A 5-foot wide Type I landscape buffer is provided adjacent to East Marginal Way. In this area some trees were removed with permission. We are not proposing to remove any other trees or vegetation and would be happy to meet at the site with the City's Urban Forester to review the landscaping proposal. We have proposed a partial visual barrier in keeping with the Police Department's request. The other perimeter buffers are located within 50 feet of LDR-zoned property and provide a 10-foot wide Type II buffer. Portions of the buffer are existing and portions are enhanced. Conditional Use Criteria The property is zoned Neighborhood Commercial Center (NCC). The new building onsite will primarily be used as office space, which is permitted outright in the NCC zone. However, the City has determined that because the overall use of the site is to support a school -related use, and schools are a Conditional Use per Table 18-6 of the Tukwila Municipal Code (TMC), a Conditional Use Permit (CUP) is required. Responses below show consistency with the criteria for a CUP, as required per TMC 18.64.050: 1. The proposed use will not be materially detrimental to the public welfare or injurious to the property or improvements in the vicinity. The purpose of a CUP is to allow uses that may not be appropriate within a given zoning district, but may be permitted subject to conditions and mitigation measures that protect health, safety, and welfare, and ensure compatibility with surrounding uses. The new transportation facility and associated site improvements do not adversely affect health, safety, and welfare, nor do they present an incompatible use. The existing. use on the site is a bus storage area for the Tukwila School District, which provides a needed public service to the City by storing the buses used to transport the District children to their schools. This use will remain unchanged. A new 2,515-square foot building is proposed on the site for the comfort and use of the bus drivers and to support the daily operations. This building will not generate any sort of public nuisance, such as noise or odor, and traffic will not change from current levels. The primary use of the new building is office space, which is permitted outright in the NCC zone. 2. The proposed use shall meet or exceed the same standards for parking, landscaping, yards and other development regulations that are required in the district it will occupy. The proposed use meets or exceeds the City standards for parking, perimeter landscaping, yards, and other development regulations for the NCC district. There are p©BGil r Ms. Minnie Dhaliwal, Planning Supervisor January 25, 2017 2160566.30 Page 3 of 4 currently 29 standard parking spaces on the site, which will be reduced to 25 standard vehicle spaces with this proposal. TMC Figure 18-7 provides that a minimum of 3.0 parking spaces for each 1,000 square feet of office space are required (8 spaces); therefore, the proposal exceeds City requirements. Perimeter landscape buffers provide buffering and screening of the use to surrounding residences and the right-of-way. They meet the requirements of TMC Chapter 18.52 by providing 10 feet of Type II landscaping. Along with the existing street trees on Marginal Way and S. 128 h Street, infill plantings are provided, such as full groundcover and evergreen shrubs. The proposal seeks relief from the parking lot landscaping standards, primarily because it is an existing bus storage area, not a standard vehicular parking lot. In its existing condition, it does not provide interior landscaping. Additional design review criteria for the NCC district are prescribed in TMC 18.60.050 (see the enclosed response to the Design Criteria). The new structure will meet minimum setback requirements and maximum height requirements. There are no requested deviations from development standards. 3. The proposed development shall be compatible generally with the surrounding land uses. The project site is in the NCC zone and is surrounded by single-family to the south, east, and west. A trucking and leasing business exists to the north of the property. The proposed office type use will not generate noise, odor, or light spill, or be of nuisance to the neighboring properties. To improve compatibility with the surrounding residential uses, perimeter landscaping will be provided to buffer and screen the property. The proposed 2,515-square foot building will meet or exceed design review criteria prescribed in TMC 18.60.050. The architectural design of the building is intended to be similar to a residential building. There will be no changes to the school bus transportation operations or schedule from what is currently in place. 4. The proposed use shall be in keeping with the goals and policies of the Comprehensive Land Use Policy Plan. The proposal is consistent with multiple aspects of the Comprehensive Plan, as listed below: GOAL 7.6 Neighborhood -Supportive Commercial Areas : Neighborhood -supportive commercial areas, including Residential Commercial Centers, that bring small commercial concentrations into and adjacent to existing residential neighborhoods to improve existing residential areas while providing products and services to nearby residents. • This project meets this goal through implementation Strategy 7.6, which is to apply commercial design guidelines, with an emphasis on buffering residential uses. Perimeter buffering will be provided on all sides of the property to ensure that the commercial area does not encroach on the surrounding residential character. The proposed use of the new facility is also small-scale in nature, and is consistent with the City's desire to bring small commercial concentrations adjacent to residential neighborhoods. A WIG Ms. Minnie Dhaliwal, Planning Supervisor January 25, 2017 2160566.30 Page 4 of 4 GOAL 7.8 Noise Abatement: Residential neighborhoods are protected from undue noise impacts, in order to ensure for all residents the continued use, enjoyment and value of their homes, public facilities and recreation, and the outdoors. • The new transportation building will operate similarly to an office use and will not create undue noise impacts on the surrounding residential areas. The rest of the property will continue to be used as a school bus storage area, and will not create noise levels above what currently exists. The Comprehensive Plan's Capital Facilities Chapter requires adequate public facilities to service development in the City, which would include facilities for public schools. The proposed transportation building is needed to provide a sufficient level of service and support for all schools within the Tukwila School District. The Tukwila Comprehensive Plan calls for growth, and as Tukwila schools modernize and expand, the proposed transportation facility is needed to support the transportation of students and the operation of the District. 5. All measures shall be taken to minimize the possible adverse impacts which the proposed use may have on the area in which it is located. The existing use of the site as a school bus storage facility will remain unchanged and the new transportation building will not result in any new adverse impacts to the surrounding area. However, the proposal includes aspects that increase the compatibility with its surroundings. To minimize the visual impact on surrounding residential uses, Type II perimeter landscaping will be provided on all sides. The perimeter buffers are currently in poor condition, and the new plantings will provide needed aesthetic and buffering improvements. The new building includes attractive architectural features and meets or exceeds desugn criteria established in TMC 18.60.050. Thank you for your review of the associated CUP and Design Review applications. If you have any questions, please call me at (253) 383-2422. Sincerely, VM(- Lisa Klein, AICP Associate Principal LK/CP/isk Enclosures c: Jeff Feeney, KMB Architects Dr. Judith Berry, Tukwila School District Alexander Clark, Rollunda Architects Q:\2016\2160566\WORDPROC\Letters\20170125 Ltr (CUP & DR) 2160566.30.docx p©Bp 1% Tukwila �� SCHOOL DISTRICT December 6, 2016 a world of possibility 4640 S. 144th St. Tukwila, WA 98168 i (206) 901-8000 tukw'slaschools.org Jack Pace, DCD Director City of Tukwila Department of Community Development 6300 South Center Blvd. Tukwila, WA 98188 RE: Tukwila School District Transportation Building SEPA Lead Agency Notice Dear Jack: This letter is to inform you that the Tukwila School District will be acting as SEPA lead agency for review of the above referenced project, as provided by the Washington Administrative Code (WAC) 197-11-926. The WAC grants authority to subdivisions of the state, including school districts, to assume lead agency status for projects implemented by the district. In accordance with the requirements of the State statute, the school district has adopted policies and procedures governing the SEPA process for district projects. The district has reviewed the project and determined that it is categorically exempt from SEPA environmental review. The project falls under a SEPA exemption listed in WAC 197-11- 800(1)(b)(iv) which includes 'The construction of an office, school, commercial, recreational, service or storage building with 4,000 square feet of gross floor area, and with associated parking facilities designed fo.r twenty automobiles...". The new transportation building will be less than 4,000 square feet in size. Our project team is available to answer any questions that may arise. If you have any questions, or if we can be of any assistance, please contact Lisa Klein of AHBL at 253-383-2422. Sincerely, D udith K. Ber Deputy Superintendent CITY OF TUKWILA Department of Community Development 6300 Southcenter Boulevard, Tukwila, WA 98188 Telephone: (206) 431-3670 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. I 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 _S 128th St. and S 130th St. Tukwila, WA 98168 (Parcel no. 2384200010)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. ji. { '�" EXECUTED at T u KW t l & (city), WA- (state), on �J a4'1/4u 7 014‘, 20 1 7 Judith K. Berry (Print Name) 4640 S. 144th St.. Tukwila. WA 98168 (Address) 206-901-8003 hone Number) ( gnature) On this day personally appeared before me V l,, _cf.n#L K • Berry 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 #-.Q OF Notary Public State of Washington Al KIM MENDOZA My Appointment Expires Jun 15, 2017 NOT ' ' : LIC m and for the State of Washington residing at �Mq �F9tA�n My Commission expires on Wv. lS Zo 1 % \ \ atystore\ City Common\ Teri - DCD\ Kirby\ 2016Applications\ Conditional Use Permit -March 2016.docx The Board's approval will expire unless construction begins within three years of Board action. Modifications to the approved design at the time of building permit may require additional review of the project. 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, or should be submitted at a later date for use at the public hearing (e.g. colored renderings). 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: 1. Application Checklist (1 copy) indicating items submitted with application. 2. Completed Application Form and drawings (5 copies). 3. One set of all plans reduced to 8 1/2" x 11" or 11" x 17". 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). u 6. SEPA Environmental Checklist if required (see SEPA Application Packet). PUBLIC NOTICE MATERIALS: 7. 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). ✓ 8. 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. 9. If providing own labels, include King County Assessor's map(s) which shows the location of each f I property within 500 ft. of the subject lot. \ \ dtystore\ City Common\ Teri -DCD\ Kirby\ 2016Applications\ Design Review -Public Hearing -March 2016.docx Check items submitted with application Information Required. May be waived in unusual cases, upon approval of both Public Works and Planning PROJECT DESCRIPTION AND ANALYSIS: 10. Concurrency test notices for water, sewer, surface water and traffic unless the project is exempt from SEPA (see SEPA Application Packet). TM 11. Sewer and water availability letters are required from the provider district if additional plumbing fixtures are proposed and the area is not serviced by the City of Tukwila. Forms are available at the DCD office. 171 12. A written discussion of project consistency with decision criteria, see application. This is your opportunity to highlight the design features of your project. I ✓1 13. Provide two copies of sensitive area studies such as wetland or geotechnical reports if needed per Tukwila's Sensitive Areas Ordinance (TMC 18.45). See Geotechnical Report Guidelines and Sensitive /.°:d Area Special Study Guidelines for additional information. SURVEY: 14. (a) The survey must include a graphic scale and north arrow. It shall be drawn with black ink in record of survey format. This shall be stamped by the surveyor. ✓ (b) An existing and proposed boundary and topographic survey (2 ft. contours including a minimum 20 ft. beyond the property line) with all structures, easements, encumbrances and right-of-way width. Vertical datum NAVD 1988 and horizontal datum NAD 83/91. Conversion calculations to NGVD 1929, if in a flood zone or flood -prone area. Y = (c) Existing and proposed building footprints. 1,I> (d) Fire access lanes and turn-arounds per Fire Department standards. V (e) Dash in required setback distances from all parcel lot lines. SITE PLAN: 15. (a) The site plan must include a graphic scale, north arrow and project name. Maximum size 24" x 36". I ✓ V (b) Existing and proposed building footprints. V (c) Vicinity Map with site location, does not have to be to scale. (d) Fire access lanes and turn-arounds per Fire Department standards. (e) Parking lots with dimensioned stalls and drive aisles. (f) Loading and service areas. (g) Fences, rockeries and retaining walls with called out colors, height and materials. V (h) Street furniture such as benches and bike racks. Ni (i) Pedestrian connections between the building entrance(s) and the sidewalk/public street. (j) In MDR and HDR zones provide a development coverage calculation (maximum 50%). LANDSCAPE PLAN: 16. (a) Landscape planting plan that meets the standards at TMC 18.52 by a Washington State licensed landscape architect; or if located in the TUC districts see TMC 18.28). One set of all plans and analyses shall have an original Washington State registered Landscape Architect stamp and signature. Plans must include the type, quantity, spacing and location of all plantings. Maximum size 24" x 36". J (b) Show all existing trees to be retained and any tree protection measures required (for example fencing at drip line). \ \ atystore\ City Common\ Teri - DCD\ Kirby\ 2016Applications\ Design Review -Public Hearing -March 2016.docx Check items submitted . . with application Information Required. Maybe waived in unusual cases, upon approval of both Public Works and Planning SENSITIVE AREAS PLAN: 17. (a) Location of all sensitive areas (e.g. streams, wetlands, slopes over 15%, coal mine areas and important geological and archaeological sites). For stream frontage provide existing and proposed top of stream bank, stream bank toe, stream mean high water mark, and base flood elevation (i.e., 100 yr. flood). Maximum size 24" x 36". WA (b) Location of all required sensitive area buffers, setbacks tracts and .rotection measures. (c) Show all significant trees (4" or more in diameter measured 4.5 feet above grade), indicating those to be retained and those to be removed. A tree permit will be required for removal of any significant trees within a sensitive area or its buffer. U (d) Existing and proposed building footprints. CIVIL PLANS: 18. (a) One set of all civil plans and analyses shall be stamped, signed and dated by a licensed professional engineer. Include a graphic scale and north arrow. Maximum size 24" x 36". V (b) Vertical datum NAVD 1988 and horizontal datum NAD 83/91. Conversion calculations to NGVD 1929, if in a flood zone or flood -prone area. See PERMIT CENTER for further information. ,✓ I (c) Existing (dashed) and proposed (solid) topography at 2' intervals. Ni I (d) Total expected cut and fill. (e) Existing and proposed utility easements and improvements, on site and in street (water, sewer, power, natural gas, telephone, cable). Schematic designs to be provided regardless of purveyor (e.g. site line size, location, and size of public main). No capacity calcs, invert depth, valve locations or the like are needed. (f) Storm drainage design at least 90% complete, which meets the King County Surface Water Design Manual (KCSWDM). Include a Technical Information Report (TIR) including feasibility analysis if required by the Manual. Call out total existing and proposed impervious surface in square feet. Include all storm drainage conveyance systems, water quality features, detention structures, maintenance access and safety features. For additional guidance contact Public Works or go to PERMIT I '/ CENTER. (g) Locate the nearest existing hydrant and all proposed hydrants. (h) Show the 100 yr. flood plain boundary and elevation as shown on FEMA maps. n (i) Plan, profile and cross-section for any right-of-way improvements. n (j) Show planned access to buildings, driveways, fire access lanes and turn-arounds. OTHER: 19. Dimensioned and scalable building elevations with keyed colors and materials. Show mechanical equipment and/or any proposed screening. ki 20. Color and materials board accurately representing the proposed project. 21. A rendering or photo montage showing the project in context is recommended. If submitted it must accurately show the project and be from a realistic perspective (5 to 6 feet above the sidewalk). M 22. Luminaire plan including location and type of street and site lighting. Include proposed fixture cut sheets, site light levels (foot-candles), and measures to shield adjcent properties from glare. 23. All existing and proposed signage with sign designs and locations. \ \ dtystore\ City Common\ Teri - DCD\ Kirby\ 2016Applications\ Design Review -Public Hearing -March 2016.docx RECEIVE WILR CITY OF TUKWILA cry °F TUK IM SIGN REVIEW - Department of Community Developm 7 5 " "� 6300 Southcenter Boulevard, Tukwila, WA 98188 PUBLIC HEARING Telephone: (206) 431-3670 PERMIT CENTER APPLICATION FOR STAFF USE ONLY Permits Plus Type: P-DR Planner: File Number: L19--r WI(Q Application Complete Date: Project File Number: i r)-- ©OZ ' l Application Incomplete Date: Other File Numbers: (_ 17 - 0 Doi * Thisapplication requires public notification. Please refer to section 8 of application checklist NAME OF PROJECT/DEVELOPMENT: Tukwila School District Transportation Building BRIEF DESCRIPTION OF PROJECT: New 2515 square foot transportation building and site improvements LOCATION OF PROJECT/DEVELOPMENT: Give street address or, if vacant, indicate lot(s), block and subdivision, access street, and nearest intersection. 12801 E. Marginal Way Tukwila, WA 98168 LIST ALL TAX LOT NUMBERS (this information may be found on your tax statement). 2384200010 DEVELOPMENT COORDINATOR: The individual who: • 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: Lisa Klein, AICP Address: 2215 N 30th St. Tacoma, WA 98403 Phone: 253.383.2422 E-mail: Iklein@a bl.com FAX: Signature: Date: January 25, 2017 \ \ atystore\ City Common\ Teri - DCD\ Kirby\ 2016Applications\ Design Review -Public Hearing -March 2016.docx ABBREVIATIONS T U KW I LA PUBLIC SCHOOLS PROJECT TEAMOWNER TUKWILA SCHOOL DISTRICT TRANSPORTATION BUILDING GENERAL NOTES AFF APPROX ARCH BLDG BLKG BO CJ CL CLR COL CONC CONT DEMO DTL DR DIM DN DS DWG (E), EXIST EJ EL ELEC EQ EQUIP FCIO FIN FO FOtC FT GA GALV GWB GYP BD HOW HR HT HVAC ID INSUL ABOVE FINISHED FLOOR APPROXIMATE ARCHITECTURAL BUILDING BLOCKING BOTTOM OF CONTROL JOINT CENTERLINE CLEAR COLUMN CONCRETE CONTINUOUS, CONTINUE DEEP, DEPTH DEMOLISH. DEMOLITION DETAIL DIAMETER DIMENSION DOWN DOWNSPOUT DRAWING EAST EXISTING EXPANSION JOINT ELEVATION ELECTRIC. ELECTRICAL EQUAL EQUIPMENT FURNISHED BY CONTRACTOR/ INSTALLED BY OWNER SHT FINISH, FINISHED SHTHG FACE OF SIM FURNISHED 8Y OWNER/ SPEC INSTALLED BY CONTRACTOR SQ FOOT. FEET SS STL STOR STRUCT SUSP T8G TO TY? GAGE, GAUGE GALVANIZED GYPSUM WALL BOARD GYPSUM BOARD HIGH HORIZONTAL HOUR HEIGHT HEATING, VENTILATING, AND AIR CONDITIONING INSIDE DIAMETER INSULATE. INSULATION LONG REFERENCE SYMBOLS BUILDING SECTION INDICATOR SECTION INDICATOR Artli SECTION DETAIL INDICATOR 1 1 1 %,---' ENLARGED DETAIL INDICATOR COLUMN GRIDLINE INDICATOR FLAGNOTE A DRAWING REVISION INDICATOR MAX MECH MEZZ MFR MIN MISC MIL NIC NO NTS OC OH OD OPNG OPP ORD PERP PLYWD PL PR PT R RD REINF READ REV RM MAXIMUM MECHANICAL MEZZANINE MANUFACTURE, MANUFACTURE MINIMUM, MINUTE MISCELLANEOUS METAL NORTH NOT IN CONTRACT NUMBER NOT TO SCALE ON CENTER OVERHEAD OUTSIDE DIAMETER OPENING OPPOSITE OVERFLOW ROOF DRAIN PERPENDICULAR PLYWOOD PROPERTY LINE PAIR PAINT, POINT, PRESSURE TREATED RADIUS, RISER ROOF DRAIN. ROAD REINFORCED, REINFORCING REQUIRED REVISED, REVISION ROOM ROUGH OPENING SOUTH SHEET SHEATHING SIMILAR SPECIFICATION SQUARE STAINLESS STEEL STEEL STORAGE STRUCTURAL SUSPENDED TONGUE AND GROOVE TOP OF TYPICAL UON UNLESS OTHERWISE NOTED VERT VERTICAL W WI W/0 WD WEST, WIDE WITH WITHOUT WOOD XXXXXXX ELEVATION INDICATOR MATCH LINE SIESNEETAUX- MATCHLINE INDICATOR 1. DRAWINGS. THE DRAWINGS ARE INTENDED TO DESCRIBE THE OVERALL SCOPE OF WORK. CONTRACTORS SHALL FIELD VERIFY EXISTING CONDITIONS AND ALERT THE ARCHITECT TO ANY CONFLICTS BEFORE BEGINNING WORK. 2. (E) OR 'EXIST.) INDICATES EXISTING CONDITION, DIMENSION OR DATUM. VERIFY ALL EXISTING CONDITIONS AND DIMENSIONS ON PROJECT PRIOR TO COMMENCEMENT OF WORK. 3. DO NOT SCALE DRAWINGS. THE CONTRACTOR SHALL USE DIMENSIONS SHOWN ON THE DRAWINGS AND ACTUAL FIELD MEASUREMENTS. NOTIFY THE ARCHITECT OF ANY DISCREPANCIES WITH DRAWINGS. 4. CONTRACTOR TO VERIFY ALL DIMENSIONS, PROPERTY LINES, MEASUREMENTS AND CONDITIONS IN THE FIELD BEFORE BEGINNING WORK. ANY DISCREPANCIES, ERRORS OR OMISSIONS TO BE BROUGHT TO THE ATTENTION OF THE ARCHITECT IMMEDIATELY. 5. TYPICAL WALL SECTIONS, FINISHES, AND DETAILS ARE NOT INDICATED EVERYWHERE THEY OCCUR ON PLANS, ELEVATIONS, AND SECTIONS. REFER TO DETAILED DRAWINGS. CONTRACTOR TO PROVIDE AS IF DRAWN IN FULL. 6. DETAILED AND/OR LARGER SCALE DRAWINGS TAKE PRECEDENCE OVER GENERAL AND SMALLER SCALE DRAWINGS. 7. GENERALLY PLAN DIMENSIONS SHOWN ARE TO FINISH OPENING, FACE OF CONCRETE, AND FINISH FACE OF WALL, UNLESS NOTED OTHERWISE 8. UNLESS OTHERWISE NOTED, ALL ANGLES TO BE RIGHT ANGLES, ALL LINES WHICH APPEAR PARALLEL ARE TO BE PARALLEL, AND ALL ITEMS WHICH APPEAR CENTERED ARE TO BE CENTERED. CONTRACTOR TO BE RESPONSIBLE FOR MAINTAINING ALL LINES TRUE. LEVEL, PLUMB, AND SQUARE. 9. NOTHING IN THE DRAWINGS SHALL BE CONSTRUED TO PERMIT AN INSTALLATION IN VIOLATION OF APPLICABLE CODES. ALL WORK PERFORMED UNDER THIS CONTRACT SHALL BE IN FULL ACCORDANCE WITH THE LATEST RULES, REGULATIONS, RESTRICTIONS, REQUIREMENTS. AND CODES OF THE GOVERNING JURISDICTIONS. 10. THE CONTRACTOR SHALL VERIFY ALL ROUGH -IN DIMENSIONS FOR THE EQUIPMENT. 11. ALL ATTACHMENTS. CONNECTIONS. AND FASTENINGS OF ANY NATURE ARE TO BE PROPERLY AND PERMANENTLY SECURED IN CONFORMANCE WITH THE BEST PRACTICES OF THE BUILDING INDUSTRY. DRAWINGS SHOW ONLY SPECIAL REQUIREMENTS TO ASSIST THE CONTRACTOR AND DO NOT SHOW EVERY DETAIL. 12. CAULKING AND SEALANTS. USE PRIMERS AS REQUIRED BY MANUFACTURER. BACKING RODS OR TAPE AS RECOMMENDED BY MANUFACTURER AND PER SPECIFICATIONS. 13, VAPOR BARRIERS. CONTINUOUS AND APPROVED VAPOR BARRIERS SHALL 8E INSTALLED ON THE HEATED SIDE OF ALL THERMAL INSULATION INSTALLED AS INDICATED. SEAL ALL EDGES. 14. CONTRACTOR SHALL VERIFY LOCATION OF ALL EXISTING UTILITIES AND PROTECT AS REQUIRED PRIOR TO COMMENCEMENT OF WORK. 15. CONTRACTOR TO COORDINATE ALL OPERATIONS WITH OWNER, INCLUDING: SITE ACCESS, MATERIALS STORAGE, AND STAGING, INTERRUPTION OF ELECTRICAL AND MECHANICAL SERVICES AND TIMING OF NOISY AND DISRUPTIVE OPERATIONS. CONTRACTOR TO VERIFY SEQUENCE OF WORK WITH OWNER. 16. CONTRACTOR TO PROTECT EXISTING FURNISHINGS, FIXTURES, EQUIPMENT AND LANDSCAPING FROM DAMAGE. CONTRACTOR TO REPLACE IN KIND ANY SUCH ITEMS DAMAGED. LOCATION MAP SCALE: N.T.S. PROJECT CODE INFORMATION CD SITE ADDRESS: 12801 E. MARGINAL WAY SOUTH TUKWILA, WA 98168 PARKING LOT AT CORNER OF SOUTH 128TH STREET MAD EAST MARGINAL WAY. A PORTION OF NE 114 OF THE NW 114 OF SEC.15, TWN. 23 N., RGE.04 E. W.M. CITY OF TUKWILA, KING COUNTY WASHINGTON. ASSESSORS PARCEL NO. 238420-0010 LEGAL DESCRIPTION: LOT 8 OF CITY OF TUKWILA SHORT PLAT NO 90-4-SS RECORDING NO 9101140403, RECORDS OF KING COUNTY WASHINGTON. JURIDICTION: CITY OF TUKWILA APPLICABLE CODES 2015INTERNATIONAL BUILDING CODE 2015 INTERNATIONAL MECHANICAL CODE 2015 INTERNATIONAL FIRE CODE 2015 INTERNATIONAL PLUMBING CODE AND ALL RELATED STANDARDS AND STATE AMENDMENTS 2015 WASHINGTON STATE ENERGY CODE ZONING DESIGNATION: NCC CONSTRUCTION TYPE: V-B OCCUPANCY TYPE: B LOT AREA: 1.41 ACRES' 61440 SF PROPOSED TOTAL FLOOR AREA: 2,515 SF 4640 S 144TH STREET TUKWILA WA 98168 CONTACT: JEFF FEENEY, PROJECT MANAGER TEL (206) 979 - 9370 ARCHITECT ROLLUDAARCHITECTS 105 S MAIN ST. SUITE 323 SEATTLE WA, 98104 CONTACT: ALEX CLARK ALEX.CLARK@ROLLUDAARCHITECTS.COM TEL: (206) 624.4222 FAX: (206) 624-4226 CIVIL CONSULTANT MECHANICAL CONSULTANT ELECTRICAL CONSULTANT SCOPE OF WORK AHBL INC 1200 6TH AVENUE. SUITE 1620 SEATTLE WA, 98101 CONTACT: CHARLIE PALMER, DOUG TAFF CPALMER@AHBL.COM TEL: (206) 267-2425 FAX (206)267-2429 TRESWEST ENGINEERS 2702 S 42N0 ST #301, TACOMA, WA 98409 CONTACT: REID HERRON RSH@TRESWEST.COM TEL (253) 472-3300 FAX: (253) 3639402 TRESWEST ENGINEERS 2702 S 42ND ST #301. TACOMA, WA98409 CONTACT: FRED RENO FLR@TRESWEST.COM TEL:(253)472-3300 FAX: (253) 363-9402 NEW ONE STORY TRANSPORTATION SUPPORT BUILDING LOCATED ON THE SW CORNER OF SITE AT EXISTING IMPERVIOUS SURFACE. ADJUSTMENT OF BUS PARKING AND STAFF PARKING STRUCTURAL CONSULTANT LANDSCAPE CONSULTANT REID MIDDLETON 728 134TH ST SW, SUITE 200, EVERETT, WA 98204 CONTACT: PAUL CROCKER PCROCKER{5REIDMIDDLETON.COM TEL: (425) 741.3800 FAX: (425) 741.3900 AHBL, INC 1200 6TH AVENUE, SUITE 1620 SEATTLE WA. 98101 CONTACT: MEREDITH SESSIONS MSESSIONS(4AHBL.COM TEL: (206)267.2425 FAX: (206)267.2429 DRAWING INDEX GENERAL G0.01 COVER SHEET 1 TOPOGRAPHIC SURVEY CIVIL C1.0 COVER SHEET C2.0 CIVIL SITE PLAN C3.0 GRADING PLAN LANDSCAPE L1.0 PLANTING PLAN L2.0 LANDSCAPE DETAILS ARCHITECTURAL A1.01 SITE PLAN PROPOSED A2.01 FLOOR PLAN A2.02 ROOF PLAN A3.01 EXTERIOR ELEVATIONS A4.01 BUILDING SECTIONS i.f ?-ooL RECEIVED JAN 252017 Community Development CUP SUBMITTAL roiluda architects architecture planning nrierif_F L`:e5tg 1 105 S. Main Street Suite 323 Seattle, WA 98104 t: 206-624-4222 f: 206-624-4226 REGISTERED AR Alex .RAkeI i STATE OF WASHINGTON • 0 Z O° O? Um co z UO m ao �_EL UD Z I- I- REVISION DATE Design: Drawn: Checked: Project No. AC JL, GS, JC AC 331-16-01 Issuance CUP SUBMITTAL Date: 1/25/2017 Drawing Title COVER SHEET Drawing Number GO.01 G0.01 COVER.DWG T/24/201 / 11:25 AM TUKWILA SCHOOL DISTRICT NEW BUS BARN A PORTION OF THE NE 1/4 OF THE NW 1/4 OF SEC. 15, 71/VN. 23 N., RGE. 04 E. WM. CITY OF TUKWILA, KING COUNTY, WASHINGTON. 15.10 PI4'N4408 3" PVC N-E-W CENTER ETTANNEL435.36 r PVC S LADDER S LEGAL DESCRIPTION LOT B OF CITY OF TUKWILA SHORT PLAT NO 90-4-S5 RECORDING NO 9101140403, RECORDS OF KING COUNTY, WASHINGTON. VERTICAL DATUM NAN) 1963 VERTICAL DATUM ON ORTHOMETRICAU_Y CORRECTEO CPS OBSERVATIONS USING WSRN AND GEOID 2012A. BASIS OF BEARING NAD 1983 WASHINGTON STATE PLANE NORTH PROJECRON, BASED ON GPS OBSERVATIONS USSIG WSRN AND GEOID 2012A. UNITS OF MEASUREMENT ARE US SURVEY FEET. UTILITY NOTES 1. SURFACE UTILITY FACTURES ARE SHOWN HEREON PER FIELD LOCATED VISIBLE EVIDENCE 'MERE MAY BE UTILITIES THAT EXIST ON THIS SITE OTHER THAN THOSE GRAPHICALLY DEPICTED HEREON. 2. UNDERGROUND (BURIED) UTIUTIES SHOWN HEREON ARE BASED ON COMBINATIONS OF VISIBLE SURFACE EVIDENCE, UTTUTY LOCATOR MARKINGS AND RECORD DATA (SUCH AS AS -BUILT OR UTTUTY DESIGN DRAWINGS). AU. UNDERGROUND UTILITIES SHOWN HEREON ARE APPROXIMATE AND, IN SOME CASES, ARE SHOWN AS STRAIGHT UNES BETWEEN FIELD LOCATED SURFACE UTILITY FACIURES. UNDERGROUND UTILITIES MAY HAVE BENDS, CURVES OR CONNECTIONS IMTICH ARE NOT SHOWN, 3, ALTHOUGH LOCATIONS OF UNDERGROUND UTIUTIES BASED ON UTIUTY LOCATOR MARKINGS AND RECORD DATA (SUCH AS AS -BUILT OR UTILITY DESIGN DRAVANGS) ARE DEEMED REUABLE. AH81_, INC. ASSUMES NO UABILITY FOR THE ACCURACY OF SAID DATA, 4, CAU. 1-800-424-5555 BEFORE ANY CONSTRUC6ON. RELIANCE NOTE THIS SURVEY WAS PREPARED AT THE REQUEST OF JEFF FEENEY FOR THE SOLE AND EXCLUSVE USE OF KMB DESIGN GROUPS. INC AND THE TUKWILA SCHOOL DISTRICT. RIGHTS TO REIT UPON AND, OR USE THIS SURVEY DO NOT EXTEND TO ANY OTHER PARTY EXCEPT THROUGH °PRESS RECERTIFICATION BY THE PROFESSIONAL LAND SURVEYOR WHOSE STAMP AND SIGNATURE APPEAR HEREON. EQUIPMENT USED .3` TOTAL STATION UTIUZING STANDARD FIELD TRAVERSE METHODS FOR CONTROL AND STAKING. SURVEYOR'S CERTIFICATE 1, DAVID C. FOLLANSBEE, A PROFESSIONAL LAND SURVEYOR IN THE STATE OF WASHINGTON, HEREBY CERTIFY THAT THIS MAP CORRECTLY REPRESENTS A SURVEY MADE BY ME OR UNDER MY DIRECT SUPERVISION IN NOVEMBER 2016, AT THE REOUEST Of KMEI DESGN GROUPS, INC. FOR TUKWILA SCHOOL DISTRICT. DAVID C. FOLLANSBEE, PLS 46161 DATE 0, STCE 1501 0443313-, 45 4\ NAM. AND INASPES, , Ei12815,3.6132 \ N:1316E1.5025 ` ELEV38.35 7 ... 7145, #104-N 62" PVC NE 4'63318 1 1 ,, / 15s CEAP S iE4.38 OE / CENTF.R EHANNEL.634.42 / 12" PVC SW IE--.33.06 / Er CONE NE 1E95302 //- iS8DEJI,i,vic80.t,D ,REI.:43--1,- 31.33 ,,-6SSM,9„.15,6,7,1,165.9.814 LADDER E .y.. / t' CONE SE 15613.02 I ',POP, F 18" CAAP NW iE9 34.20 STEP I505 RIM4,43.10--, 3" CMP NE iE640.5D. E2' CAP 6 iE633:ta 13" CM? 5 iE634.70 :E1 Eli LADDER SW t\ ., STCR 1301 RIN1653 45-, ,. :11 1.. ' /SOUTH 128TH STREET ;. . -• , , ,•, r„ ;'._ „-SMAii 6.6i7 NIM642.38 RIP. • .. ' MV.:1-13 13IP,7 ' \I .- .. .-.-- .:..-.;......_..i....I .::-__:_• "7........-s,EE_i.7C0-P 4017 .11'2:T-7-:-m -13 ;\ IiN."4.........5,„."C....i. .-- ---"----.-4\ ,\ 31s1i„LS'2'A7 oOc''''L'''ID'CC7 0ET'6P" AIPEPsC E'-0 -,i,,z,,1 !N E63\ \I 0, ' 1/2RBAR ANG \ \,15RA7 RI66v 'S264 \C1.IIIPE ‘GEICE:W45R,9IO3'E3E5S47-S056IE'f4t4S6. N.342E:4i- .2DW.5_srrsE6384 T11\NIN,, LCP WEtE71 0480101 . 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I I; 18" EMP NI IEN42.11 I 12' SCENti 6 IE.645.53 18" EMP S 1E442.11 i LADDER '6/ Curve Table CURVE# LENGTH RADIUS DELTA CHORD DIRECTION CHORD LENGTH CI 30.58 197.3 10.0444" E31* 44' 49'6 50.45 C7) 6.3 79.49 1.13 543.66 3.23.07" '43.00 45,353' NY 2.4. 54"4 TINY DEr 84"W ,4.42 1 13 POUND STONE WIRE X-- ,N CASE AT 3T04 AVE It S AND S 130TH ST 00-I: 214.2 4W4=45.44 (‚HP 11iEv38.79 61" CMP NE 1E4,42.59 18" iEw 114 7? 111 SOUTH 128TH STREET fT1-14-16) -i•PCIEND 3" PRAE3; DISK / WITH X IN CASE AE E / MARGINAL WAv ANL: S GRAPIRC SCALE 0 10 20 40 FEET 1'420E33r LEGEND 08 .a. 0 0 09 84 FF C C a 65 es 60 ES93 FOUND MONUMENT AS NOTE.° SET NAIL AND WASHER SET REBAR AND CAR BOU_ARO SON AS NOTED SANITARY SENER CLEANOUT SANITARY SEWER MANHOLE STORM CLEANOUT STORM CATCH BASIN STORM MANHOLE YARD DRAIN GAS VALVE UTILITY POWER POLE JUNCTION BOX POVIER METER POWIER VAULT LUMINAIRE COMMUNICATIONS MANHOCE TELEPHONE RISER TELEPHONE VAULT FIRE HYDRANT IRRIGATION CONTROL VALVE WATER METER WATER VALVE WATER VAULT C-CEDA3 P-FINE COA-ALDER. CW-TTONWOOD M-MAPLE. U-UNKNOVOI - - - - - D- STORM UNE - - - - -S- SEVER UNE W- WATER UNE - - - - - G - GAS LINE - - - - - P- ELECTRICAL UNE - - - - - T - COMMUNICATION UNE OHP - OVERHEAD °MURES - 1-x-t-0- FENCE ASPHALT CONCRETE RECEIVED JAN 25 2011 Community Development TACOMA SEATTLE • SPOKANE -TRI-CMES 2215 North 308h &net. Suite 300 Tacoma, WA 98403 253.3832422 TEL 253.3812572 FAX %mufti.= WES Prol,ct Title- TUKWILA SCHOOL DISTRICT NEW BUS BARN Chen • TUKWILA SCHOOL DISTRICT CO KMB DESIGN GROUPS, INC 906 COLUMBIA STREET, SUITE 400 OLYMPIA. WA 98501 JEFF FEENEY 21601101.5D JANUARY 18.2017 Et xIFI onF. PEENet TOPOGRAPHIC SURVEY Desinne. Prawn hy. C1,440701 04 TD DF SIENNI No 1 1 of 1 Sheets rulluda architects SOUTH 128TH STREET SO' 42' 49'w—" 26.62' AnK Know what's below. Call before you dig. r2r.IT.11'x,. SITE MAP SCALE: Y= 30' VICINITY MAP SCALE: 1"= 250' PROJECT: LOCATION. EAST MARGINAL WAY SOUTH GRAPHIC SCALE 0 15 30 60 = 30 FEET LEGEND EXISTING DESCRIPTION PROPOSED LIGHT POWER/TELE POLE GUY WIRE TELEPHONE MH TELEPHONE RISER VAULT CATCH BASIN STORM DRAIN MH SANITARY SEWER MH SIGN HYDRANT FIRE DEPT CONNECTION mr WATER VALVE N WATER METER CHAINLINK FENCE UDERGROUND POWER .... CONTOURS —c— — STORM DRAIN UNE — WATERLINE —w- --- r -- FIRE SERVICE —s— — SANITARY SEWER LINE — s — ROOF DRAIN LINE — GAS LINE -P— POWER CP---- OVERHEAD POWER —r— — EXISTING TELEPHONE .r --- — FIBER RETAINING WALL ASPHALT PAVING CEMENT CONCRETE CONIFEROUS TREE DECIDUOUS TREE SPOT ELEVATION XXX.XX /FG-FINISHED GRADE EC -EXISTING GRADE TW-FINISHED GRADE AT TOP OF WALL BW-FINISHED GRADE AT BOTTOM OF WALL TC-FINISHED GRADE TOP OF CURB BC -FINISHED GRADE BOTTOM OF CURB OWNER TUKWILA SCHOOL DISTRICT 4640 S. 144T1-1 ST. TUKWILA, WA 9816E PHONE: (206) 979-9370 FAX: N/A CONTACT: JEFF FEENEY, PE E.snall: Jefffeeney@kmbarchitects.com ARCHITECT ROLLUDA ARCHITECTS 105 S. MAIN STREET, SUITE 323 SEATTLE, WA98104 PHONE: (206) 624-4222 FAX: (206)624-4226 CONTACT: GARY SCOTT, AIA E-mail: gary(@rolludaarchitects.com CIVIL ENGINEER AHBL, INC. 1200 6TH AVENUE SURE 1620 SEATTLE, WA 98101-3117 PHONE: (206) 267-2425 FAX: (206) 383-2572 CONTACT: JARED MCDONALD. EIT E-mail: Jmcdonald@abbl.com SURVEYOR AHBL, Inc. 1200 6TH AVENUE SURE 1620 SEATTLE, WA 96101-3117 PHONE: (206) 267-2425 FAX: (206) 383.2572 CONTACT: DAVID FOLLANSBEE, PLS E-mail: dfollansbee, ahbl.com RECEIVED JAN 25 2017 Community Development 01/2)/20/7 LEGAL DESCRIPTION LOT B OF CITY OF TUKWILA SHORT PLAT NO 90-4—SS RECORDING NO 9101140403, RECORDS OF KING COUNTY, WASHINGTON. VERTICAL DATUM NAVD 1988 VERTICAL DATUM ON ORTHOMETRICALLY CORRECTED GPS OBSERVATIONS USING WSRN AND GEOID 2012A. BASIS OF BEARING NAD 1983 WASHINGTON STATE PLANE NORTH PROJECTION, BASED ON GPS OBSERVATIONS USING WSRN AND GEOID 2012A. UNITS OF MEASUREMENT ARE US SURVEY FEET. UTILITY NOTES 1. SURFACE UTILITY FACILITIES ARE SHOWN HEREON PER FIELD LOCATED VISIBLE EVIDENCE. THERE MAY BE UTILITIES THAT EXIST ON THIS SITE OTHER THAN THOSE GRAPHICALLY DEPICTED HEREON. 2. UNDERGROUND (BURIED) UTILITIES SHOWN HEREON ARE BASED ON COMBINATIONS OF VISIBLE SURFACE EVIDENCE, UTILITY LOCATOR MARKINGS AND RECORD DATA (SUCH AS AS —BUILT OR UTILITY DESIGN DRAWINGS). ALL UNDERGROUND UTILITIES SHOWN HEREON ARE APPROXIMATE AND, IN SOME CASES, ARE SHOWN AS STRAIGHT LINES BETWEEN FIELD LOCATED SURFACE UTILITY FACILITIES. UNDERGROUND UTILITIES MAY HAVE BENDS, CURVES OR CONNECTIONS WHICH ARE NOT SHOWN. 3. ALTHOUGH LOCATIONS OF UNDERGROUND UTILITIES BASED ON UTIUTY LOCATOR MARKINGS AND RECORD DATA (SUCH AS AS —BUILT OR UTILITY DESIGN DRAWINGS) ARE DEEMED RELIABLE, AHBL, INC. ASSUMES NO LIABILITY FOR THE ACCURACY OF SAID DATA. 4. CALL 1-800-424-5555 BEFORE ANY CONSTRUCTION. EARTHWORK THE FOLLOWING NUMBERS SHALL NOT BE USED FOR BIDDING PURPOSES BUT IS FOR PERMI I INFORMAIION ONLY. CUT=I4YV L f 7- 0OC FILL = 8 CY' architecture pluming iGb 7i4r € ea g<, 105 S. Main Street Suite 323 Seattle, WA 98104 t: 206-624-4222 f: 206-624-4226 REVISION DATE Design: Drawn: Checked: Project No. 331-16-01 Issuance CUP SUBMITTAL Date: 1/25/2017 Drawing Title COVER SHEET Drawing Number Cl .0 PROPOSED — SEWER TO CONNECT INTO EXISTING "'*' EXISTING STORM PIPE :\ PER PARKING LOT CONSTRUCTION I"• DRAWINGS 1- EXISTING AREA DRAIN PER PARKING LOT CONSTRUCTION 1 DRAWINGS REESTABLISH AND REFRESH EXISTING SWALE TRASH CONTA NER DOWNSPOUT TO DAYLIGHT TO RIPRAP PAD Know what's below. Call before you dig. EXIT FROM I SITE NEW BUS PARKING PROPOSED BUILDING REESTABLISH AND REFRESH EXISTING SWALE SOUTH 128TH STREET N89. 17 WV 7 NEW PARKING STALLS r SAWCUT LINE .... ,.,,.�.. 2" DOMESTIC WATER 195 LF SAWCUT LINE 4' FIRE SPRINKLER 100 LF 4' FOC SUPPLY 90 LF 4 NEW PARKING STALLS DAYLIGHT TO •_ RIPRAP PAD 50' 42' 49-w� I .' 8" TO 4" REDUCER ................_....:.:.......:.:.^. 8' DIP LF PROPOSED DOMESTIC WATER TO CONNECT INTO �• EXISTING WATER VAULT DOUBLE. DETECTOR NEW FIRE CHECK ASSEMBLY HYDRANT ' WITH BYPASS 01/Z1/Z0/7 GRAPHIC SCALE 1'= 20 FEET relluda architects archit oture planning ilrfer€or LL5'im 105 S. Main Street Suite 323 Seattle, WA 98104 t: 206-6244222 I: 206-624-4226 REVISION DATE Design: Drawn: Checked: Project No. 331-16-01 Issuance CUP SUBMITTAL 40 Date: 1/25/2017 Drawing Title CIVIL SITE PLAN Drawing Number A A A EG 47 e5 REESTABLISH AND REFRESH SWALE Know what's below. Cali before you dig. SAWCUT EG 46.49 REPLACED PAVING .G 46.55 FG' 47.70 "-FG. 47.70 FG: 46.92 FG: 47.97 DOWNSPOUT TO DAYLIGHT TO RIPRAP PAD PROPOSED BUIDLING FEE = 47.7 49 IN MN= IN OMR MI 11111111/1 • MOM WI NNW WI SWIM IN NIN 1111111M WI MEM MI NINO •• IN IMO M. la MAW moo No moo so so NOM 4.1 MOM as moo sooiss so so ammo so moo FG: 47.70-y FG: 47.70- FG: 47.64 11 ADA COMPLIANT RAMP FG 47.36- \,4 EC' 47.31 FG: 47.85 FG; 47 77 DOWNSPOUT TO DAYLIGHT TO RIPRAP PAD EG. 46.36 S0' 42' 49'W 26.02' REPLACED PAVING ADA STAID. 2% MAX SLOPE IN ANY DIRECTION / No/ SAWCUT EG: 46.45 NEW CURB EG: 47.51 of/t)/zon ' `'RECEIVED L.' ?'000F JAN 25 2017 Community Developme GRAPHIC SCALE 0 5 10 "= 5 FEET rolluda architects artitocture planning iut,,,,rior e!�s;gr1 105 S. Main Street Suite 323 Seattle, WA 98104 t: 206-624-4222 f: 206-624-4226 REVISION DATE Design: Drawn: Checked: Project No. 331-16-01 Issuance CUP SUBMITTAL Date: 1/25/2017 Drawing Title GRADING PLAN Drawing Number C3.0 GENERAL LANDSCAPE NOTES rolluda architects 39' TYPE II LANDSCAPE 1 EXISTING TREE, 1 PROPOSED, (2 REQUIRED) 1 EXISTING SHRUB, 7 PROPOSED (8 REOUIRED) 104 KINNIKINNICK GROUNDCOVER EXISTING SHRUB PROPERTY LINE, TYP, — 59' TYPE II LANDSCAPE 3 PROPOSED TREES (3 REQUIRED) 8 PROPOSED SHRUBS(12 REQUIRED) 161 KINNIKINNICK GROUNDCOVER SOUTH 128TH STREET EXISTING TREE, TYP. -- - - EXISTING SIDEWALK. TYP. —EXISTING SHRUBS EXISTING STORM WATER POND EXISTING PLANTING TO REMAIN HYDROSEED DISTURBED SWALE AND CURB AREAS- SEE CIVIL EXISTING INTERIOR PLANTING TO REMAIN PROPOSED BUILDING- SEE ARCH EXISTING PERIMETER PLANTING TO REMAIN Know what's below. CaII before you dig. EXISTING FENCE TO REMAIN, TYP. 168' TYPE I LANDSCAPE BUFFER ALONG MARGINAL WAY 7 EXISTING TREES(6 REQUIRED), 30 PROPOSED SHRUBS(24 REQUIRED), 100 NEW KINNIKINNICK GROUNDCOVERS INTERPLANTEO AMONG EXISTING JUNIPERS ALONG S. MARGINAL WAY...... 103' TYPE II LANDCAPE BUFFER 3 EXISTING TREES AND 4 PROPOSED (5 REQUIRED) 21 PROPOSED SHRUBS (21 REOUIRED) 203 KINNIKINNICK GROUNDCOVERS (90% COVERAGE REQUIRED) EAST MARGINAL WAY SOUTH • EXISTING IRRIGATION SYSTEM TO BE REPAIRED AS NECESSARY FOR FULL COVERAGE OF NEW PLANTING. • GROUNDCOVER AND SHRUBS TO BE PLANTED UNDER EXISTING TREES TO BE PIT PLANTED. CONTRACTOR SHALL TAKE CARE TO AVOID DAMAGING EXISTING ROOF SYSTEM. • INSTALL TREE PROTECTION PER DETAIL AROUND EXISTING TREES WITHIN AREAS OF PROPOSED WORK. • SEE SPECIFICATIONS FOR PLANT MATERIAL, TOP SOIL AND PLANTING MIX TYPES AND DEPTH, MULCHING, SOIL AMENDMENTS, FERTILIZERS AND WARRANTEES. • PLANTING SHALL CONFORM TO ALL TUKWILA CODE REQUIREMENTS, INCLUDING PRESERVATION OF ADEQUATE INTERSECTION SIGHT DISTANCE LINES/ TRIANGULAR AREAS. • CONTRACTOR SHALL VERIFY ON -SITE CONDITIONS PRIOR TO BIDDING AND CONSTRUCTION. • THE CONTRACTOR AND OWNER ARE RESPONSIBLE FOR READING THE PLANS. SPECIFICATIONS .AND NOTES. • THE CONTRACTOR SHALL VERIFY ALL PLANT MATERIAL QUANTITIES PRIOR TO INSTALLATION. ANY PLANT MATERIAL QUANTITIES LISTED ARE FOR THE CONVENIENCE OF THE CONTRACTOR. ACTUAL NUMBER OF SYMBOLS SHALL HAVE PRIORITY OVER QUANTITY DESIGNATED. THE CONTRACTOR SHALL BE RESPONSIBLE FOR COUNTING THE TOTAL NUMBER OF PLANTS INDICATED ON THE PLANS ANO ESTIMATING GROUNDCOVER QUANTITIES. • THE CONTRACTOR SHALL FURNISH AND PAY FOR ALL CONTAINER OR FIELD GROWN TREES, SHRUBS AND GROUNDCOVERS, INCLUDING SEEDED AND SODDED TURF, HYDROMULCHES AND FLATTED GROUNDCOVERS. THE CONTRACTOR SHALL ALSO BE RESPONSIBLE AND PAY FOR: PLANTING OF ALL PLANT MATERIALS; THE SPECIFIED GUARANTEE OF ALL PLANT MATERIALS; THE STAKING AND GUYING OF TREES ANO THE CONTINUOUS PROTECTION OF ALL PLANT MATERIALS UPON THEIR ARRIVAL AT THE SITE. • SEE L2.0 SHEET FOR PLANTING DETAILS. PLANT SCHEDULE TREES CODE BOTANICAL NAME SHRUBS 0 O COMMON NAME PV PARROTIA PERSICA 'VANESSA' PERSIAN PARROTIA CONT 2 CAL QTY 8 CODE BOTANICAL NAME COMMON NAME CONT SPACING OTY TD TAXUS X MEDIA 'DENSIFORMIS' DENSE YEW 2 GAL 48" o.c. 51 VT VACCINIUM OVATUM 'THUNDERBIRD' EVERGREEN HUCKLEBERRY 2 GAL 36" o.c. 19 GROUND COVERS CODE BOTANICAL NAME COMMON NAME CONT SPACING OTY AM ARCTOSI'APHYLOS UVA-URSI 'MASSACHUSETTS' MASSACHUSETTS MANZANITA 1 GAL 24" o.c. 568 HS PT305 HYDROSEED TURF MIX PROTIME PT305 SHADE/SUN MIX OR APPROVED EQUAL EXISTING PLANTING HYDROSEED EXISTING TREES TO REMAIN- SOME SYMBOLS REPRESENT MULTIPLE TREES. SEE LABEL. 0 EXISTING SHRUB TO REMAIN EXISTING CODE REQUIRED PERIMETER PLANTING TO REMAIN EXISTING PLANTING TO REMAIN CODE CALCULATIONS 1,332 SF RECEIVED JAN 25 2017 Community Development PER TUKWILA CODE 18.52.020 PERIMETER LANDSCAPE REQUIREMENTS TABLE AND FOOTNOTES. NCC ZONING REQUIRES A 10' TYPE II BUFFER ALONG SOUTH 1287H STREET. AND A 10' TYPE II BUFFER ALONG BACK AND SIDE YARDS, BECAUSE OF THE ADJACENT LDR ZONE. TYPE L. ONE TREE FOR EACH 30 LINEAL FEET OF REQUIRED PERIMETER EXCLUDING CURB CUTS, ONE SHRUB FOR EACH 7 LINEAL FEET OF REQUIRED PERIMETER EXCLUDING CURB CUTS, AND LIVING GROUNDCOVER TO COVER 90% OF THE LANDSCAPE AREA WITHIN THREE YEARS. TYPE IL ONE TREE FOR EACH 20 LINEAL FEET OF REQUIRED PERIMETER EXCLUDING CURB CUTS, ONE SHRUB FOR EACH 5 LINEAL FEET OF REOUIRED PERIMETER EXCLUDING CURB CUTS, AND LIVING GROUNOCOVER TO COVER 90% OF THE LANDSCAPE AREA WITHIN THREE YEARS. TYPE I LENGTH: 168' TREES REQUIRED, 6 TREES PROVIDED: 7 EXISTING SHRUBS REOUIRED:24 SHRUBS PROVIDED:30 PROPOSED TYPE II LENGTH:103'+39't59'=201 TREES REQUIRED: 10 TREES PROVIDED: 8 PROPOSED +4 EXISTING=B TOTAL SHRUBS REQUIRED: 40 SHRUBS PROVIDED:40 PROPOSED 1 EXISTING=41 TOTAL /.f 7. ua/G STATE OF WAB) NOTON REGISTERED LANDSCARe^1TCIITECT u� 000/ COWES ONaYNs/2017 GRAPHIC SCALE 10 20 40 FEET MiE t' a 20 rsxr arthil Cture piS€Il(i€F 105 S. Main Street Suite 323 Seattle, WA 98104 t: 206-624-4222 f: 206-624-4226 C. Eng..., «a awn4•:, Conn Tya,,mem c3a1013 T A C O M A • S E A T T L E S P O K A N E • T R I- C I T I E S 1200 6Th Avenue. Suite 1620 000010. WA 98101 20E26,2425 TEL 206207.2429 FAX wro.ohtl.Wm 009 REVISION DATE Design: Drawn: Checked: Project No. Issuance CUP SUBMITTAL Date: 1(25/2017 Drawing Title PLANTING PLAN Drawing Number L1.0 NOTE' 1. TREES NOT PLANTED IN CONFORMANCE WITH THIS DETAIL WILL BE REJECTED BY THE LANDSCAPE ARCHITECT. REPLACEMENT OF REJECTED TREES WILL BE DONE AT THE CONTRACTORS EXPENSE. AT TIME OF PLANTING, TRIM DAMAGED BRANCHES. ROOTBALL 3" MULCH. NO MULCH AGAINST TRUNK 3"-0" HIGH WATERING RING SCARIFY SIDES OF PLANTING PIT BACKFILL WITH EXISTING SOIL 00 NOT DISTURB SUBGRADE BELOW ROOTBALL TO REDUCE SETTLING. DECIDUOUS TREE PLANTING 3X ROOTBALL STAKE TREE WITH TWO 2'X2"X8' STAKES SPREAD ACROSS FROM EACH OTHER APPROVED TREE TIE MATERIAL SET LOOSE TO ALLOW FOR TRUNK GROWTH DRIVE STAKES AT ROOTBALL EDGE DRIVE STAKES 6"-12" INTO UNDISTURBED SOIL BELOW ROOTBALL 8" =1'6" FEEDER ROOT ZONE DIA=2X ELEVATION DRIP LINE DIA=X CRITICAL ROOT ZONE DIA=1/2X TREE PROTECTION ORANGE VINYL DIAMOND MESH CONSTRUCTION FENCING. TYP. WOOD POST 8' OC MAX SPACING. INSTALL AT A MIN. OF Z-0" BELOW GRADE. USE 8" WIRE 'LT TO SECURE FENCE BOTTOM, TYP, BROO TU.TO 3" MULCH. NO MULCH AGAINST THE BASE OF THE PLANT BACKFILL WITH EXCAVATED SOIL REMOVE BURLAP FROM TOP AND SIDES OF ROOT BALL DOWN INTO GROUND. SET TOP OF BALL FLUSH WITH FINISH GRADE. SHRUB PLANTING SCARIFY SIDES OF PLANTING PIT LOOSEN PULL OUT ROOTS FROM CONTAINER GROWN PLANTS NTS FENCING/ROOT PROTECTION 1. FENCING TO BE PROVIDED AND MAINTAINED AT CANOPY DRIP LINE. 2. TREE PROTECTION FENCE SHOULD BE MAINTAINED THROUGHOUT GRADING AND CONSTRUCTION AND SHALL NOT BE REMOVED UNTIL FINAL ACCEPTANCE. 3. ALL BRUSH CLEANUP WITHIN DRIP LINE SHOULD BE COMPLETED BY HAND TO PREVENT DISTURBANCE OF NATIVE GROUND COVERS. 4. NO WIRES, CABLES, OR OTHER DEVICES SHALL BE ATTACHED TO PROTECTED TREES DURING CONSTRUCTION. 5. CONTRACTOR SHALL REFER TO PLANS AND SPECIFICATIONS FOR ADDITIONAL INFORMATION. TRENCHING/EXCAVATION CRITICAL ROOT ZONE 1. NO DISTURBANCE ALLOWED WITHOUT SITE -SPECIFIC INSPECTION AND APPROVAL OF METHODS TO MINIMIZE ROOT DAMAGE. DRIP LINE 1. LANDSCAPE ARCHITECTS APPROVAL REQUIRED FOR USE'ACCESS WITHIN DRIP LINE. 2. NO SOIL DISTURBANCE OR ACTIVITY ALLOWED WITHIN FENCED AREAS, SUCH AS MATERIAL STORAGE/STOCKPILING. PARKING, EXCAVATION, DUMPING OR WASHING. 3. ANY TRENCHING SUBJECT TO FIELD INSPECTION AND APPROVAL BY LANDSCAPE ARCHITECT. FEEDER ROOT ZONE 1. OPERATION OF HEAVY EQUIPMENT AND/OR STOCKPILING OF MATERIALS SUBJECT TO LANDSCAPE ARCHITECTS APPROVAL. 2. MINIMIZE TRENCH WIDTH WHEN USING HEAVY EQUIPMENT. SURFACE PROTECTION" MEASURES MAY BE REQUIRED, 3. LIMIT ANY DISTURBANCE TO MAXIMUM 1/3 OF FEEDER ROOT ZONE. 4. IF ROOTS GREATER THAN 2 INCH FOUND OUTSIDE OF FENCING. PROTECT BY HAND EXCAVATION AND, IF NECESSARY, CUT CLEANLY AND KEEP MOIST. 5. USE 3 INCHES OR DEEPER WOOD CHIP MULCH OUTSIDE FENCED AREAS TO PROTECT FEEDER ROOTS. SURFACE PROTECTION MEASURES 6-8' MULCH LAYER, 3/4"PLYW000 OR STEEL PLATES 18' = Know what's below. Call before you dig. BRDG-TIJ-75 NOTE: 1. ALL GROUNDCOVER TO BE PLANTED AT EQUAL TRIANGULAR SPACING PER O.C. SPACING ON LEGEND. BRDG-TU-01 GROUNDCOVER PLANTING PLAN ® SPACING X .86 FOR TRANGULAR PATTERN r, 12" MIN ____1 FROM CURB ............ ......... SPACING AS SPECIFIED 3" OF MULCH. NO MLCH BASE OF NST THE THE BASE O PLANT ,( PLANT BACKFILL WITH EXCAVATED SOIL. WATER THOROUGHLY. 2X ROOTBALL GROUNDCOVER PLANTING 112" = 1'dY REMOVE EXCESS SOIL ABOVE ROOT FLARE PRIOR TO DIGGING AT NURSERY. CORRECT IN FIELD AT PLANTING IF NECESSARY. SET TRUNK FLARE AT I" ABOVE FINISHED GRADE. REMOVE ALL GIRDLING AND ADVANTAGEOUS ROOTS ABOVE TRUNK FLARE FINISHED GRADE 11\ REMOVE ALL'MITE BASKET, BURLAP. OR SYNTHETIC MATERIALS FROM ROOTBALL (NO EXCEPTIONS). SET ROOTBALL ON COMPACTED SOIL TO PREVENT SETTLING. O ROOTBALL PREPARATION BRDG TUS6 NTS BROG-T0-05 STATE OF WASHINGTON REGISTERED LAJ/4SCUE ARCHTECT GLM'ONIJCENSE WO NGRSE DSNtS / 01/05/20,1 RECEIVED JAN 25 2011 Community Development ralluda architects architecture phinntt<g I fitericr des/tin 105 S. Main Street Suite 323 Seattle, WA 98104 t: 206-624-4222 f 206-624-4226 0i1Engkerra 9;:axwn:.Ar01e Ixmxxp<n2: uva eonvnxv+r xm+ers T A C O M A - S E A T T L E S P O K A N E • T R I- C I T I E S 1200 60) Avenue, Suite 1620' Searle, WA 913101 2C8 267 2425 Ta 203.2872429 FM 5555.84/80 4Te 0 00 0M5 U W Z REVISION DATE Design: Drawn: Checked: Project No. Issuance CUP SUBMITTAL Date: 1/25/2017 Drawing Title LANDSCAPE DETAILS Drawing Number L2.0 roliuda architects EXISTING CURB TO REMAIN. TYPICAL PROPERTY LINE 0 SOUTH 128TH STREET (..) ...... , EXISTING SIDEWALK •• II 7 o f o ( 1. I 2 1 :— i 15 RED SETB/Cl& 3Y6 3/4 PROPOSED GARBAGE TRUCK ACCESS 4-YARD TRASH CANISTER V148,0" CMU ENCLOSURE AND CHAIN LINK GATE HEAT PUMP ON CONCRETE SLAB WITH 8,0CMU SURROUND, SEE A9 01 FOR MORE INFORMATION OSITE PLAN - PROPOSED SCALE 20,0" A1.01 TB SITE PLAN 11 s„t PROPERTY LINE / EXISTING EXIT ,• ,14,4 • " F ADD TRIP WIRE TO GATB EXISTIN4 DRIVE AISLE • . t. _ EXISTING ENTRY x • (NEW CARD /44%,./ READER) 1111.11 IN EXISTING DRII/E AISLE NEW 5,0" PEDESTRIAN fx PATHWAY (PAINTEDz • 2 - 1 :' ';' I I - 2 a ' • ; :7 /;:::::,...,, , , ..., iiiiiii ,1 PAINT STRIPING „ • (7) N W PARKING STALLS 9,0"W RAISED ENTRY LANDING WITH ASPHALT OVERLAY- .. - SLOPED ASPHALT OVERLAY TO GRADE 1.20 MAX NEW PARKING STALLS Op 9,0"W EXISTING-CORSTO" — REMAIN, TYPICAL 155,4 1/4" RELOCATED LIGHT POLE NOTE: SEE LANDSCAPE 8 CIVIL DRAWINGS FOR ADDITIONAL INFORMATION • . " ... . • • " 0- " !fr • E ; I s..0, Ur ED SETBACK- VAT CA U8"X2 : SOUTH 130TH STREET _ — Cl C EAST MARGINAL WAY SOUTH EXISTING SWALE 008 SEPARATOR PER CIVIL/LANDSCAPE PROPOSED PARKING BUS 18 STANDARD 22 COMPACT 2 ADA 1 TOTAL 43 RECEIVED JAN 2 5 2017 Community Development architecture paresi0 Iati*lor i/520g0 105 S. Main Street Suite 323 Seattle, WA 98104 t: 206-624-4222 f: 206-624-4226 82. REGISTERED AR Alex E. Fidluda k STATE OF WASHINGTON REVISION DATE Design: AC Drawn: GS/JC Checked: AC Project No. 331-16-01 Issuance CUP SUBMITTAL Date: 1/25/2017 Drawing Title SITE PLAN - PROPOSED Drawing Number A1.01 A1.01_TB_SITE PLAN.DWG a 53 COVIRIONT 0.15 POLLUDA ARCHITECTS roiluda architects architecture plarming interier Cesg!..) 60'-0° 16.-3 3/4" 11-8 1/4" 5'-4 3/4" 9-1 1/4" 10-0 1/2" 7.-6" / / LOCKERS FOIC 8.01 //- 18.02 s _, ._ . ...• -----• WO N1 . 1 Li 1 I I I ...,._ - .. ' INK sTAct<ABLE() N/D 1 •.\:":„.• —CI MECH ELEC --0 I 107 I ( 107)/ / / .*-. 0? Mil ,---- SHER 0 FD STORAGE 0 FD 9 EYEWASH STATION ...... 1'1: I f. ' I '110 1 rr. NI STALLED OVER SINK ,••+ , ii ,/ • - __ 9 EN i 0 ,..-•-•;-\\ 8 JANITOR CLST Ill gm T------, i!,-", II 1 106 I ..N. g \ El / \ , ,-,, / •"- , DRIVER *'''''..... I.1 INNW PREP I i ..... \ ( 1 3) . — I 108 I ...,. ••, k 105) ink REF 117/W t '''-'1 M MV TYPE 1 EXHAU: 9 4' ' • [. I ‘ ( A9.04 ---f '-I-----. I I MEN--- _ _..J A98.03 +.- I VCT OV Ank STORAGE MB 1---] ( -1---.) WALL -MOUNTED TACKBOARD Th_ CARPET ol6.03 I 113 I I PUNCH -IN CLOCK --- FIRE CAB '':•' ..,__ .---- ----,, • I f-- 17 1 . ....- i PROJECTION -1 ' 1.. !.. I f'. „iv ..... ...1 .. ,..„,....1 .•:••:-. co.__ J J b N. ' SECURE WHITE BOARDS ON ,..,„ ,-,-, 1 8.01 COPIER ....,.. , ; I DISPLAY EITHER SIDE OF ' t 1 -.. - A401 illk I LOBBY \— — —'' CONFERENCE i RO* OJECTION ' I 101 I VW t• J 1 , ,'52 i RING IN BUZZER .. - II PROJECTION OFFICE I 103 1 PROJECTION -- ---1:1 I-1 f- ... • I 1 --, : SCREEN ... \ It 1 • 1 I 1 i 1. I E +/- N 111" ,-,-, vr G. „... .... LI i C ] -J-----LCREEN .... / . OFFICE --/ \--` f -I \---; i 1 -1 I 1 102 i , LA , ; I !xx ,) •\ .. --,- ,L.3 -, , --1 , I I 2 L 9.01 'I, 'oc------ — --- ADA ACTUATOR .4 CARD READER 5%0" 54 3/4" 5-0 1/2" 5.-4 3/4" 5%0" 3'-0" 5'-0" —..„..,.........,....._ ROOF OVERHANG. / 65.-9" SEE ROOF PLAN FOR DIMI a RECE C) SCALE : 1/4"" 1'M" FLOOR PLAN T NSIONING 1VED JAN 25 2017 Community Development 41.DI e/74r000 105 S. Main Street Suite 323 Seattle, WA 98104 t: 206-624-4222 f: 206-624-4226 6250 \ REGISTERED Alex CRolleila STATE OF WASHINGTON (9 (1) Z -J — 0 CI 0 —I I 5 C) 00 Z C) 0 . :3 P: 03 <C ,r 0 a. (/) < Z < ui F— 2.§P. REVISION DATE Design: AC Drawn: GS Checked: AC Project No. 331-16-01 Issuance CUP SUBMITTAL Date: 1/25/2017 Drawing Title FLOOR PLAN Drawing Number A2.01 /24/2017 9:10 AM COPYPIENIT 0.01,0004 ARCHITECTS rol uda arch! ects architectufe plarming i€i uric r de:5i.gn DOWN SPOUT EXHAUST VENT VENT PIPE 5'-9" 64'-0" 2'-0" O11ERHAJG 2'-0" / 0\ERHA G c0 V-5" OVERHANG `I. 40 O 2'-0 f / OVERHANG 7'-9" OVERHANG 69'-9' 2.-0" OVERHANG METAL GUTTER f � DOWN SPOUT i i D: O MEDIUM TONE STANDING SEAM METAL ROOF VENT PIPE MECH VENTING RECEIVED JAN 25 2011 Community Development 105 S. Main Street Suite 323 Seattle, WA 98104 t: 206-624-4222 f: 206-624-4226 ezw 1, REGISTERED Alex pal utla STATE OF WASHINGTON REVISION DATE Design: AC Drawn: GS Checked: AC Project No. 331-16-01 Issuance CUP SUBMITTAL Date: 1 /25/2017 Drawing Title ROOF PLAN Drawing Number A2.02 A2.01 A2.02-TB-PLAN.DWG COPYRIGHT O." 1404.131PA ARCHITECTS MG FASCIA BOARD. TYP. SOFFIT BOARD, TYP. CEMENTIOUS SIDING, PAINTED. TYP. METAL DOORS, TYP - 1 PAINTED PIPE RAILING TOP OF HANDRAIL CONCRETE STEM WALL 1 f 0 - FASCIA BOARD, TYP. DARK OR LIGHT TONE 5'-0" / 5,-9" O NORTH ELEVATION A3.01..Ta..EXT ELEVATIONS OSCALE: 1!4"= 1'-0' A3.01:TB::EXT ELEVATIONS OSCALE: IA. :1'-0' EAST ELEVATION STANDING SEAM METAL ROOFING FASCIA BOARD. TYP. DOWNSPOUT TO SPLASH BLOCK CONCRETE STEM WALL FASCIA BOARD, TYP. DOWNSPOUT TO SPLASH BLOCK CEMENTIOUS SIDING, PAINTED, TYP. METAL DOOR CONCRETE STEM WALL NEW CURB 2', 1 12 1 ZT— ;....-- 14'-9' RAMP AT 5% SLOPE SEE A9.01 FOR ADDITIONAL INFORMATION 5'-0' 1n 5'-3 3/4" / 52.10' RIDGE HT SOFFIT BOARD, TYP. DARK OR LIGHT TONE 57.44' _.-..--TO.WALL CEMENTIOUS BOARDS, PANELS & TRIM PAINTED, NEUTRAL EARTH TONE, TYP. o FIXED ALUMINUM FRAME WINDOWS, CLEAR OR DARK TONE FINISH WITH DARK OR LIGHT TONE TRIM PIPE RAILING, PAINTED DARK 47.77' `FINISH FLOOR CONCRETE STEM WALL FASCIA BOARD, TYP. DARK OR LIGHT TONE 52.10' RIDGE HT CEMENTIOUS BOARDS, PANELS & TRIM PAINTED, NEUTRAL EARTH TONE. TYP, T.O. WALL FIXED ALUMINUM FRAME WINDOWS, CLEAR OR DARK TONE FINISH WITH DARK OR LIGHT TONE TRIM PIPE RAILING PAINTED DARK CONCRETE STEM WALL 47.77' FINISH FLOOR -r MEDIUM TONE STANDING SEAM METAL ROOFING FASCIA BOARD, TYP. DARK OR LIGHT TONE DOWNSPOUT TO SPLASHBLOCK CEMENTIOUS BOARDS & TRIM 52.10' RIDGE HT 57.44' T.O. WALL PAINTED, NEUTRAL EARTH TONE. TYP. SOUTH ELEVATION rrI PIPE RAILING, PAINTED DARK CONCRETE STEM WALL 47.77' FINISH FLOC/ A3.01 'TB, EAT ELEVATIONS CEMENTIOUS BOARDS. PANELS & TRIM PAINTED, NEUTRAL EARTH TONE, TYP. PIPE RAILING, PAINTED DARK CONCRETE CURB —� WEST ELEVATION SCALE: 1,4'- 1'-0' A3.01 `113 EX F ELEVATIONS 0 ci 5'-0" VENT EXHAUST, VERIFY SIZE 52 10' FASCIA BOARD, TYP. DARK OR LIGHT TONE DOWNSPOUT TO SPLASHBLOCK METAL DOORS, TYP RIDGE HT 457.44' T.O. WALL CEMENTIOUS BOARDS. PANELS & TRIM PAINTED, NEUTRAL EARTH TONE, TYP. CONCRETE STEM WALL 2-0./ NEW .RECEIVED 77 JAN 2 6t21ifr� Community Development rolluc a ardu eras architecture pla#'lllirlE inter/17 design 105 S. Main Street Suite 323 Seattle, WA 98104 t: 206-624-4222 r: 206-624-4226 USG l`�•.,� ,!, REGISTERED AR Alex E.Rallud STATE OF WASHINGTON 0 (/) Z REVISION DATE Design: AC Drawn: GS Checked: AC Project No. 331-16-01 Issuance CUP SUBMITTAL Date: 1 /25/2017 Drawing Title EXTERIOR ELEVATIONS Drawing Number A3.01 A3.01_TB_EXT ELEVATIONS.DWG 0 CPPYRNINfl,"014 ROLLUDA ARCHITECTS MC rolluda architects FINISH GRADE 0 SCALE: 1!4" = 1'.0" A4.01::TB::8UILDING SECTIONS BUILDING SECTION TJI'S PER STRUCTURAL METAL ROOFING OVER ROOFING FRAMING FINISH 9 1/2" GRADE X 52.10' RIDGE HT 57.44' .O. WALL EXTERIOR SOFFIT CONC. SLAB -ON -GRADE FINISH GRADE 47.77' FINISH FLOOR L1 LOBBY CONFERENCE/ TRAINING I104I L 41 L BREAK ROOM I105I O2 BUILDING SECTION SCALE . 1!4" = 1'41 A4.01::TB:'.BUILDING SECTIONS 52.10' RIDGE HT 1 VIP 57.44 T.O. WALL -1 47.77' -4........ FINISH FLOOR FINISH GRADE RECEIVED JAN 25 2017 Community Development ii-oetac Srr?litecture plarm.irig io1eri/. r+ et ig 1 105 S. Main Street Suite 323 Seattle, WA 98104 t: 206-624-4222 f: 206-624-4226 6250 l� �l REGISTERED )r ' ARCtJIIFCJ Alex E. ROIIWx 1• STATE OFWASHINGTON REVISION DATE Design: AC Drawn: GS Checked: AC Project No. 331-16-01 Issuance CUP SUBMITTAL Date: 1 /25/2017 Drawing Title BUILDING SECTIONS Drawing Number A4.01 A4.01_TB_BUILDING SECTIONS.DWG TUKWILA SCHOOL DISTRICT TRANSPORTATION B 2384200010 Associated Files: PLI7-0005, 117-0006 This File: L17-0007 USE PERMITS/CONDITIONAL USE January 25, 2017 Ms. Minnie Dhaliwal, Planning Supervisor City of Tukwila Department of Community Development 6400 Southcenter Boulevard Tukwila, WA 98188 Project: Tukwila School District Transportation Building, AHBL No. 2160566.30 Subject: Project Description and Consistency with CUP Criteria Dear Minnie: Please find enclosed Tukwila School District's application for a Conditional Use Permit (CUP) and Design Review for a new Transportation Building. Please find enclosed the following: CUP Application Checklist • CUP Application Form (5 copies) • Design Review Application Checklist • Design Review Application Form (5 copies) • Response to Design Review Criteria • Plan Set (5 copies) including: o Site Plan o Building Elevations o Floor Plan o Roof Plan o Landscape Plan o Civil Plans • Set of plans reduced to 8'/h" x 11" • Affidavit of Ownership and Hold Harmless Permission to Enter Property • Tukwila School District SEPA Lead Agency Letter • Sewer and water availability letters • Technical Information Report • Geotechnical Analysis • Mailing labels for properties within 500 feet and map showing 500-foot buffer Project Description Tukwila School District is proposing a new office building at the corner of East Marginal Way S. and S. 128th Street, on Parcel 238420-0010 (site address is 12801 E. Marginal Way S.). The site is 61,440 square feet (1.14 acres) in size and is currently operating as the District's school bus storage facility. The site currently has 16 bus storage spaces and 29 standard vehicle parking spaces. A shed is the only existing structure on the site and it will be removed with this proposal. 1200 66 Avenue Suite 1620 Seattle, WA 98101.3117 206267.2425 Ms. Minnie Dhaliwal, Planning Supervisor January 25, 2017 2160566.30 Page 2 of 4 The proposal is to build a new 2,515-square foot building for daily administrative use by the bus drivers. The building will provide needed facilities for the drivers and support the daily transportation operations for the District. The building will include a conference/training room, break room, two offices, storage room, mechanical closet, janitorial closet, lobby, and restrooms. Site improvements will result in 17 bus parking spaces (1 additional) and 25 standard vehicle parking spaces (4 less). A new 5-foot wide painted pedestrian pathway will be provided to the building from S.128th Street. Vehicular access to the site will be the same as before, with a separated entry and exit point from S. 128th Street. The proposed building will be subject to design review. Perimeter landscaping will be provided per the City of Tukwila's Municipal Code. A 5-foot wide Type I landscape buffer is provided adjacent to East Marginal Way. In this area some trees were removed with permission. We are not proposing to remove any other trees or vegetation and would be happy to meet at the site with the City's Urban Forester to review the landscaping proposal. We have proposed a partial visual barrier in keeping with the Police Department's request. The other perimeter buffers are located within 50 feet of LDR-zoned property and provide a 10-foot wide Type II buffer. Portions of the buffer are existing and portions are enhanced. Conditional Use Criteria The property is zoned Neighborhood Commercial Center (NCC). The new building onsite will primarily be used as office space, which is permitted outright in the NCC zone. However, the City has determined that because the overall use of the site is to support a school -related use, and schools are a Conditional Use per Table 18-6 of the Tukwila Municipal Code (TMC), a Conditional Use Permit (CUP) is required. Responses below show consistency with the criteria for a CUP, as required per TMC 18.64.050: 1. The proposed use will not be materially detrimental to the public welfare or injurious to the property or improvements in the vicinity. The purpose of a CUP is to allow uses that may not be appropriate within a given zoning district, but may be permitted subject to conditions and mitigation measures that protect health, safety, and welfare, and ensure compatibility with surrounding uses. The new transportation facility and associated site improvements do not adversely affect health, safety, and welfare, nor do they present an incompatible use. The existing use on the site is a bus storage area for the Tukwila School District, which provides a needed public service to the City by storing the buses used to transport the District children to their schools. This use will remain unchanged. A new 2,515-square foot building is proposed on the site for the comfort and use of the bus drivers and to support the daily operations. This building will not generate any sort of public nuisance, such as noise or odor, and traffic will not change from current levels. The primary use of the new building is office space, which is permitted outright in the NCC zone. 2. The proposed use shall meet or exceed the same standards for parking, landscaping, yards and other development regulations that are required in the district it will occupy. The proposed use meets or exceeds the City standards for parking, perimeter landscaping, yards, and other development regulations for the NCC district. There are OMENS Ms. Minnie Dhaliwal, Planning Supervisor January 25, 2017 2160566.30 Page 3 of 4 currently 29 standard parking spaces on the site, which will be reduced to 25 standard vehicle spaces with this proposal. TMC Figure 18-7 provides that a minimum of 3.0 parking spaces for each 1,000 square feet of office space are required (8 spaces); therefore, the proposal exceeds City requirements. Perimeter landscape buffers provide buffering and screening of the use to surrounding residences and the right-of-way. They meet the requirements of TMC Chapter 18.52 by providing 10 feet of Type II landscaping. Along with the existing street trees on Marginal Way and S. 128 h Street, infill plantings are provided, such as full groundcover and evergreen shrubs. The proposal seeks relief from the parking lot landscaping standards, primarily because it is an existing bus storage area, not a standard' vehicular parking lot. In its existing condition, it does not provide interior landscaping. Additional design review criteria for the NCC district are prescribed in TMC 18.60.050 (see the enclosed response to the Design Criteria). The new structure will meet minimum setback requirements and maximum height requirements. There are no requested deviations from development standards. 3. The proposed development shall be compatible generally with the surrounding land uses. The project site is in the NCC zone and is surrounded by single-family to the south, east, and west. A trucking and leasing business exists to the north of the property. The proposed office type use will not generate noise, odor, or light spill, or be of nuisance to the neighboring properties. To improve compatibility with the surrounding residential uses, perimeter landscaping will be provided to buffer and screen the property. The proposed 2,515-square foot building will meet or exceed design review criteria prescribed in TMC 18.60.050. The architectural design of the building is intended to be similar to a residential building. There will be no changes to the school bus transportation operations or schedule from what is currently in place. 4. The proposed use shall be in keeping with the goals and policies of the Comprehensive Land Use Policy Plan. The proposal is consistent with multiple aspects of the Comprehensive Plan, as listed below: GOAL 7.6 Neighborhood -Supportive Commercial Areas : Neighborhood -supportive commercial areas, including Residential Commercial Centers, that bring small commercial concentrations into and adjacent to existing residential neighborhoods to improve existing residential areas while providing products and services to nearby residents. • This project meets this goal through implementation Strategy 7.6, which is to apply commercial design guidelines, with an emphasis on buffering residential uses. Perimeter buffering will be provided on all sides of the property to ensure that the commercial area does not encroach on the surrounding residential character. The proposed use of the new facility is also small-scale in nature, and is consistent with the City's desire to bring small commercial concentrations adjacent to residential neighborhoods. MOOS Ms. Minnie Dhaliwal, Planning Supervisor January 25, 2017 2160566.30 Page 4 of 4 GOAL 7.8 Noise Abatement: Residential neighborhoods are protected from undue noise impacts, in order to ensure for all residents the continued use, enjoyment and value of their homes, public facilities and recreation, and the outdoors. • The new transportation building will operate similarly to an office use and will not create undue noise impacts on the surrounding residential areas. The rest of the property will continue to be used as a school bus storage area, and will not create noise levels above what currently exists. The Comprehensive Plan's Capital Facilities Chapter requires adequate public facilities to service development in the City, which would include facilities for public schools. The proposed transportation building is needed to provide a sufficient level of service and support for all schools within the Tukwila School District. The Tukwila Comprehensive Plan calls for growth, and as Tukwila schools modernize and expand, the proposed transportation facility is needed to support the transportation of students and the operation of the District. 5. All measures shall be taken to minimize the possible adverse impacts which the proposed use may have on the area in which it is located. The existing use of the site as a school bus storage facility will remain unchanged and the new transportation building will not result in any new adverse impacts to the surrounding area. However, the proposal includes aspects that increase the compatibility with its surroundings. To minimize the visual impact on surrounding residential uses, Type II perimeter landscaping will be provided on all sides. The perimeter buffers are currently in poor condition, and the new plantings will provide needed aesthetic and buffering improvements. The new building includes attractive architectural features and meets or exceeds design criteria established in TMC 18.60.050. Thank you for your review of the associated CUP and Design Review applications. If you have any questions, please call me at (253) 383-2422. Sincerely, Lisa Klein, AICP Associate Principal LK/CP/Isk Enclosures c: Jeff Feeney, KMB Architects Dr. Judith Berry, Tukwila School District Alexander Clark, Rollunda Architects Q:\2016\2160566\WORDPROC\Letters\20170125 Ltr (CUP & DR) 2160566.30.docx CMGS CITY OF TUKWILA Department of Community Development 6300 Southcenter Boulevard, Tukwila, WA 98188 Telephone: (206) 431-3670 CONDITIONAL USE PERMIT INFORMATION The Conditional Use Permit provides approval procedures for unusual or unique types of land uses that, due to their nature, require special consideration of their impact on the neighborhood and land uses in the vicinity (TMC 18.64.010). Shoreline Conditional Uses (TMC 18.44.050) shall be processed in accordance with the Shoreline regulations and the Conditional Use Permits Chapter of the Tukwila Municipal Code. REQUIREMENTS: A Conditional Use Permit is required for all land uses listed as Conditional Uses in the various Zoning Districts. 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. A project's hearing date is determined when all application materials have been submitted and development issues defined with staff. Staff will review the application, meet with you as needed, and formulate a recommendation to the Hearing Examiner. The Hearing Examiner will approve, deny or conditionally approve a development based on review criteria in the application forms. Other associated Planning Permits and Environmental Reviews shall be addressed and resolved during the complete application phase. All permits related to the project must be addressed in a comprehensive manner at the Public Hearing. Please note that an environmental "Determination" must be issued by the City prior to the Planning Commission's Public Hearing. EXPIRATION: A Conditional Use Permit shall automatically expire one year from the date it is approved, unless a Building Permit is obtained. A longer expiration period may be authorized by the Planning Commission, as appropriate (TMC 18.64.060). \ \ atystore\ City Common\ Teri - DCD\ Kirby\ 2016Applications\ Conditional Use Permit -March 2016.docx 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, or should be submitted at a later date for use at the public hearing (e.g. colored renderings). Application review will not begin until it is determined to be complete. ADDITIONAL MATERIALS MAY BE REQUIRED. The initial application materials allow starting project review and vesting the applicant's rights. However, they in no way limit the City's ability to require additional information as needed to establish consistency with development standards. City staff is 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 ;'af both Public Works and Planning APPLICATION MATERIALS: ✓ 1. Application Checklist (1 copy) indicating items submitted with application. I 2. Completed Application Form and drawings (5 copies). ✓ 3. One set of all plans reduced to 8 1/2" x 11" or 11" x 17". v4. Completed and notarized Affidavit of Ownership and Hold Harmless Permission to Enter Property (1 copy attached). .../ 5. Application Fee: See Land Use Fee Schedule online. N/A 6. SEPA Environmental Checklist (see SEPA Application Packet). PUBLIC NOTICE MATERIALS: 7. Payment of notice board fee (See Land Use'. Fee schedule) to Fast Signs 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). N /A / 8. 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 / 9. 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. \ \ otystore\ City Common\ Teri - DCD\ Kirby\ 2016Applications\ Conditional Use Permit -March 2016.docx Check items submitted with application Information Required. May be waived in unusual cases,upon approval 'of both !Public -Works and . planning PROPERTY INFORMATION: 4A 10. Concurrency test notices for water, sewer, surface water and traffic unless the project is exempt from SEPA (see SEPA Application Packet). \/ 11. Sewer and water availability letters are required from the provider district if additional plumbing fixtures are proposed and the area is not serviced by the City of Tukwila. Forms are available at the DCD office. PROJECT DESCRIPTION AND ANALYSIS: / 12. A written discussion of project consistency with decision criteria. (See Application) This is your opportunity to highlight the features of your project. I 13. Provide two copies of sensitive area studies such as wetland or geotechnical reports if needed per Tukwila's Sensitive Areas Ordinance (TMC 18.45). See Geotechnical Report Guidelines and Sensitive Area Special Study Guidelines for additional information. SITE PLAN: 14. (a) The site plan must include a graphic scale, north arrow and project name. Maximum size 24" x 36". V (b) Existing and proposed building footprints. V (c) Dash in required setback distances from all parcel lot lines. V (d) Fire access lanes and turn-arounds per Fire Department standards. (e) Parking lots with dimensioned stalls and drive aisles. V (f) Loading and service areas. ✓ (g) Fences, rockeries and retaining walls. V(h) Pedestrian connections between the building entrance(s) and the sidewalk/public street. V (i) Vicinity Map with site location; does not have to be to scale. LANDSCAPE PLAN: 8,01 15. (a) Landscape planting plan by a Washington State licensed landscape architect. One set of all plans and analyses shall have an original Washington State registered Landscape Architect stamp and signature. Plans must include the type, quantity, spacing and location of all plantings. Maximum size 24" x 36". (b) Show all existing trees to be retained and any tree protection measures required (for example fencing at drip line). SENSITIVE AREAS PLAN: dfrs 16. (a) Location of all sensitive areas (e.g. streams, wetlands, slopes over 20%, coal mine areas and important geological and archaeological sites). For stream frontage provide existing and proposed top of stream bank, stream bank toe, stream mean high water mark, and base flood elevation (i.e., 100 yr. flood). Maximum size 24" x 36". AV (b) Location of all required sensitive area buffers, setbacks tracts and protection measures. ` A; ,4 (c) Show all trees over 4" caliper, indicating those to be retained. A tree permit will be required for removal of any significant trees within a sensitive area or its buffer. IA- (d) Proposed lot and tract lines. \ \ atystore\ City Common\ Teri - DCD\ Kirby\ 2016Applications\ Conditional Use Permit -March 2016.docc Check items submitted with application ..Information Required. May be waived in unusual cases, upon approval of both Public Works and Planning CIVIL PLANS (If any site changes are proposed): / �/ 17. (a) One set of all civil plans and analyses shall be stamped, signed and dated by a licensed professional engineer. Include a graphic scale and north arrow. Maximum size 24" x 36". (b) Vertical datum NAVD 1988 and horizontal datum NAD 83/91. Conversion calculations to NGVD 1929, if in a flood zone or flood -prone area. Contact Public Works for further information. �� (c) Existing (dashed) and proposed (solid) topography at 2' intervals. v (d) Total expected cut and fill. / �/ (e) Existing and proposed utility easements and improvements, on site and in street (water, sewer, power, natural gas, telephone, cable). Schematic designs to be provided regardless of purveyor (e.g. site line size, location, and size of public main). No capacity calcs, invert depth, valve locations or the like are needed. (f) If additional impervious surface is proposed provide a storm drainage design at least 90% complete, which meets the King County Surface Water Design Manual (KCSWDM). Include a Technical Information Report (TIR) including feasibility analysis if required by the Manual. Call out total existing and proposed impervious surface in square feet. Include all storm drainage conveyance systems, water quality features, detention structures, maintenance access and safety features. For additional guidance contact Public Works or go to PERMIT CENTER. `I (g) Locate the nearest existing hydrant and all proposed hydrants. V (h) Show the 100 yr. flood plain boundary and elevation as shown on FEMA maps. V (i) Plan, profile and cross-section for any right-of-way improvements. (j) Show planned access to lots, driveways, fire access lanes and turn-arounds. OTHER: 18. If new construction is proposed provide dimensioned and scalable building elevations with keyed colors and materials. Show mechanical equipment and/or any proposed screening. ///q 19. If site lighting changes are proposed provide a luminaire plan including location and type of street and site lighting. Include proposed fixture cut sheets, site light levels (foot-candles), and measures to shield adjacent properties from glare. /V/A 20. All existing and proposed signage with sign designs and locations. Aditt21. A rendering or photo montage is suggested. If submitted it must accurately show the project and be from a realistic perspective (5 to 6 feet above the sidewalk). /y/A 22. Any other drawings or materials needed to explain your proposal. \ \ dtystore\ City Common\ Teri - DCD\ Kirby\ 2016Applications\ Conditional Use Permit -March 2016.do r CITY OF TUKWILA RECEIVEDCONDITIONAL Department of Community Dever toF TUKI t1I. SE PERMIT 6300 Southcenter Boulevard, Tukwila, WA 98188 Telephone: (206) 431-3670 JAN 2 5 2017 PERMIT CENTEp APPLICATION FOR STAFF USE ONLY Permits Plus T e: P-CUP Planner: File Number: L 143 Application Complete Date: Project File Number: p Li q..,> on Application Incomplete Date: Other File Numbers: 4, l7 — 00 0,C NAME OF PROJECT/DEVELOPMENT: Tukwila School District Transportation Building BRIEF DESCRIPTION OF PROJECT : New 2515 square foot transportation building and site improvements This application requires public notice. Please refer to section 8 of the application checklist. This application requiresa hearing with the Hearing Examiner. Hearing Examiner fees will be passed on to applicant. LOCATION OF PROJECT/DEVELOPMENT: Give street address or, if vacant, indicate lot(s), block and subdivision, access street, and nearest intersection. 12801 E. Marginal Way Tukwila, WA 98168 LIST ALL TAX LOT NUMBERS (this information may be found on your tax statement). 2384200010 DEVELOPMENT COORDINATOR: The individual who: • 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. N ame: Lisa Klein, AICP Address: 2215 N 30th St. Tacoma, WA 98403 Phone: (253) 383-2422 FAX: E-mail: lklein@ahbl.com Signature: ,k2L �'U' — Date: 01/25/2017 \ \ atystore\ City Common\ Teri - DCD\ Kirby\ 2016Applications\ Conditional Use Permit -March 2016.docx