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HomeMy WebLinkAboutPermit L04-007 - CITY OF TUKWILA - ALLENTOWN PHASE II SEWER SHORELINE SUBSTANTIAL DEVELOPMENTALLENTOWN SEWER IMPROVEMENTS PHASE II L04 -007 CITY OF TUKWILA PUBLIC WORKS generally located in the right of way area of 42nd Avenue South and S. 115th Street. L04 -007 Dept. Of Community Development City of Tukwila AFFIDAVIT OF DISTRIBUTION /, j uxo6w._ 6r HEREBY DECLARE THAT: Notice of Public Hearing Project Name: 1 (4.0,,q -- Determination of Non - Significance Project Number: V`A Notice of Public Meeting Person requesting mailing: & I G/L 1 a Mitigated Determination of Non - Significance Board of Adjustment Agenda Pkt Determination of Significance & Scoping Notice Board of Appeals Agenda Pkt Notice of Action Planning Commission Agenda Pkt Official Notice Short Subdivision Agenda Notice of Application Shoreline Mgmt Permit Notice of Application for Shoreline Mgmt Permit __ _ FAX To Seattle Times Classifieds Mail: Gail Muller Classifieds PO Box 70 - Seattle WA 98111 Other 0 p in sf Was mailed to each of the addresses listed on this [ day o year 20 Olt P:GINAWYNETTA/FORMS /AFFIDAVIT -MAIL 08/29/003:31 PM in the Project Name: 1 (4.0,,q -- Project Number: V`A Mailer's Signature: L,tyga44 , Di g4-04` Person requesting mailing: & I G/L 1 a sf Was mailed to each of the addresses listed on this [ day o year 20 Olt P:GINAWYNETTA/FORMS /AFFIDAVIT -MAIL 08/29/003:31 PM in the () U.S. ARMY CORPS OF ENGINEERS () FEDERAL HIGHWAY ADMINISTRATION () DEPT OF FISH & WILDLIFE ( ) OFFICE OF ARCHAEOLOGY ( ) TRANSPORTATION DEPARTMENT () DEPT NATURAL RESOURCES ( ) OFFICE OF THE GOVERNOR ( EPT OF COMM. TRADE & ECONOMIC DEV. DEPT OF FISHERIES & WILDLIFE > () BOUNDARY REVIEW BOARD () FIRE DISTRICT #11 () FIRE DISTRICT #2 () KC. WASTEWATER TREATMENT DMSION () KC. DEPT OF PARKS & REC () KC. ASSESSOR'S OFFICE ( ) TUKWILA SCHOOL DISTRICT ( ) TUKWILA LIBRARY () RENTON LIBRARY () KENT UBRARY ( ) CITY OF SEATTLE LIBRARY ( ) OWEST ( ) SEATTLE CITY LIGHT ( ) PUGET SOUND ENERGY () HIGHUNE WATER DISTRICT () SEATTLE WATER DEPARTMENT ( ) AT &T CABLE SERVICES ( ) KENT PLANNING DEPT ( ) TUKWILA CITY DEPARTMENTS: ( ) PUBLIC WORKS () FIRE ( ) POUCE () FINANCE ( ) PLANNING () BUILDING () PARKS & REC. () MAYOR ( ) CITY CLERK () PUGET SOUND REGIONAL COUNCIL u SW K C CHAMBER OF COMMERCE �j CKLESHOOT INDIAN TRIBE CULTURAL RESOURCES PROGRAM ISHERIES PROGRAM ( WILDLIFE PROGRAM ( ) SEATTLE TIMES ()SOUTH COUNTY JOURNAL P: WDMINISTRATIV E \FORMS \CHKLIST.DOC CHEF 1ST: ENVIRONMENTAL REVIEW/SHORELINE PF 'T MAILINGS 100 FEDERAL. AGENCIES WASHINGTON STATE AGENCIES () U.S. ENVIRONMENTAL PROTECTION AGENCY ( ) U.S. DEPT OF H.U.D. () NATIONAL MARINE FISHERIES SERVICE () EPT OF SOCIAL & HEALTH SERV. DEPT OF ECOLOGY, SHORELAND DIV EPT OF ECOLOGY, SEPA DMSION OFFICE OF ATTORNEY GENERAL SEND CHKUST W DETERMINATIONS • SEND SITE MAPS WITH DECISION KING COUNTY AGENCIES SCHOOLS/LIBRARIES UTILITIES CITY AGENCIES OTHER LOCAL AGENCIES MEDIA () HEALTH DEPT ( ) PORT OF SEATTLE () KC. DEV & ENVIR SERVICES -SEPA INFO CNTR ( ) KC. TRANSIT DMSION - SEPA OFFICIAL ( ) KC. LAND & WATER RESOURCES () FOSTER LIBRARY () K C PUBLIC LIBRARY ( ) HIGHUNE SCHOOL DISTRICT ( ) SEATTLE SCHOOL DISTRICT ( ) RENTON SCHOOL DISTRICT ( ) OLYMPIC PIPELINE ( ) VAL -VUE SEWER DISTRICT ( ) WATER DISTRICT #20 () WATER DISTRICT #125 ( ) CITY OF RENTON PUBLIC WORKS ( ) BRYN MAWR- LAKERIDGE SEWERANATER DISTRICT ( ) RENTON PLANNING DEPT () CITY OFSEATAC ( ) CITY OF BURIEN ( ) TUKWILA PLANNING COMMISSION MEMBERS ( ) TUKWILA CITY COUNCIL MEMBERS ( ) CITY OF SEATTLE - SEPA INFO CENTER - DCLU ( ) STRATEGIC PLANNING OFFICE' • NOTICE OF ALL SEATTLE RELATED PLNG PROJ. ( ) DUWAMISH INDIAN TRIBE ( ) P.S. AIR POLLUTION CLEAN AGENCY () SOUND TRANSIT ( ) DUWAMISH RIVER CLEAN -UP COALITION 'SENO NOTICE OF ALL APPLICATIONS ON DUWAMISH RIVER ( ) HIGHLINE TIMES ( ) CLTUKWILA.WA.US.VWWV S�CVG�I2 '�1 WiJ 5d GI�GE PIC NOTICE MAILINGS FOR PrrMITS SEPA MAILINGS Mail to: (comment period starts on date of mailing) Dept. of Ecology Environmental Review Section *Applicant *Other agencies as necessary (checked off on attached list) *Any parties of record * send only the staff report, site plan and the SEPA Determination KC Transit Division — SEPA Official would like to receive information about all projects that might affect transit demand Send These Documents to DOE: SEPA Determination (3 -part from Sierra) Findings (staff report, usu. with MDNS) SEPA Checklist (filled out by applicant) Drawings/Plans of project (site plan, elevations, etc. from PMT's) Affidavit of Distribution (notice was mailed or sent to newspaper) SHORELINE MAILINGS: Notice of Application for a Substantial Development Permit must be mailed to owners and to property owners within 500 feet of subject property, comments are due 30 days after the notice of application is mailed/posted. The notice of Application for Shoreline Substantial Development Permit must include a statement that any person desiring to submit written comments on the application or desiring to receive notification of the final decision on the application may do so within 30 days of the notice of application. If a hearing will be held on the application, the hearing notice must include the information that written comments may be submitted, or oral presentation made at the hearing. Shoreline Permit Notice of Decision: Mail to: (within 8 days of decision; 21 -day appeal period begins date received by DOE) \\\ D epartment of Ecology Shorelands Section State Attorney General *Applicant *Indian Tribes *Other agencies as necessary (checked off on attached list). *Any parties of record * send only the staff report, site plan and the SEPA Determination Send These Documents to DOE and Attorney General: Permit Data Sheet Shoreline Substantial Development Permit (3 -part from Sierra) Findings (staff report or memo)/ Shoreline Permit Application Form (filled out by applicant) Drawings/Plans of project (site plan, elevations, etc. from PMT's) Site plan, with mean high water mark & improvements — Cross - sections of site with structures & shoreline - Grading Plan - Vicinity map SEPA determination (3 -part from Sierra) Findings (staff report or memo) SEPA Checklist (filled out by applicant) Notice of Application Affidavit of Distribution (notice was mailed) P:\ ADMINISTRAT IVE\FORMS \CHKLIST.DOC Project: File Number: Applicant: Request: Associated Permits: Comprehensive Plan/ City of Tukwila Department of Community Development Steve Lancaster, Director STAFF REPORT TO THE DIRECTOR DEPARTMENT OF COMMUNITY DEVELOPMENT August 23, 2004 City of Tukwila Allentown Phase II Sewer Improvement Project L04 -007 - Shoreline Substantial Development Permit City of Tukwila Department of Public Works Shoreline Substantial Development Permit to install sanitary sewers, replace water lines with auxiliary equipment (fire hydrant, valves, services boxes, etc), construct sidewalks, replace stormwater outfalls, install woody debris along the bank of the Duwamish River, and repave two City streets. The shoreline project area is generally located in the right of way area of 42 Avenue South and S. 115 Street. The north boundary of the shoreline project area will extend to 40 Avenue South and the southern edge of the shoreline project will be South 124 Street. Building Permits Flood Control Permit Right of Way Permit Department of Fish and Wildlife NPDES Steven M. Mullet, Mayor City of Tukwila, DCD City of Tukwila, PW City of Tukwila, PW Washington State Department of Ecology 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 Staff: Brandon J. Miles, Assistant Planner The following information was submitted as part of the application. I. Project Description Zoning Designation: Manufacturing Industrial Center and Low Density Residential (LDR) 1. SEPA Checklist Dated, February 2004 2. Right of Way Survey of Sewer Improvements 3. Letter by the applicant analyzing the project's consistency with Comprehensive Plan, Shoreline Management Regulations. Shoreline Substantial Development Permit to install sanitary sewers, replace water lines with auxiliary equipment (fire hydrant, valves, services boxes, etc), construct sidewalks, replace stormwater outfalls, install woody debris along the bank of the Duwamish River, and repave two City streets. The shoreline project area is generally located along 42 Avenue South and South 115 Street in the Allentown Neighborhood. II. Policies of the Shoreline Management Act/Shoreline Master Program The Allentown Neighborhood was annexed into the City of Tukwila in 1989. The City of Tukwila is required to administer annexed areas based on the Shoreline Management Plan which was in place at the time of annexation, until such time that a new Master Plan is adopted and approved by the Washington State Department of Ecology. III. Existing Development The shoreline area along 42 Avenue South and South 115 Street is highly developed. Two major City streets, 42 Avenue South and South 115 Street are within the 200 -foot shoreline area. Additionally, there is a large amount of utility equipment within the shoreline area, including utility poles, fire hydrants, and water meters. A City sidewalk is present along 42n Avenue South along the east side of the street. There is also a large number of houses on the east side of 42 Avenue South and a majority of the homes appear to be totally or partially within the shoreline area. The homes in this area utilize septic tanks for waste disposal. As a result of this project, these homes will gradually convert to sewer lines. IV. Shoreline Regulations King County Shoreline Management Program 2 Applicable regulations of King County Shoreline Master Program: A. Non -water related development and residential development shall not be permitted waterward of the ordinary high water mark. Part of this project involves the replacement of stormwater outfalls along the Duwamish River. To mitigate the impacts of the stormwater outfalls, the City will place large wood debris to be placed at the toe of the riverbank (For exact location refer to "Log Anchor Detail "). B. Except in those cases when the height requirement of the underlying zones are more restrictive, no structure shall exceed a height of thirty -five feet above average grade level. This requirement may be modified if the view of a substantial number of residences will not be obstructed, if permitted by the applicable provisions of the underlying zoning, and if the proposed development is agricultural, water related or water dependent. The sewer extension project will not require the construction of any structures. C. All development shall be required to provide adequate surface water retention and sedimentation facilities during the construction period. Prior to construction the applicant is required to obtain the necessary permits from the City's Public Work's Department. These permits will require the submittal of a temporary erosion control plan for construction activities. The plan must be approved prior to construction activities. D. Development shall maintain the first fifty feet of property abutting a natural environment as required open space. This criterion is not applicable, as the King County shoreline environment designation adjacent to this site as "Urban Environment ". E (1) Parking areas must be located beneath or upland of the development... E (2) Any outdoor parking area perimeter... must be maintained as a planting area with a minimum of five feet. E (3) One live tree...shall be required for each thirty linear feet of planting area. E (4) One live shrub...for each 60 inches of planting area shall be required E (5) Additional perimeter and interior landscaping of parking areas may be required when large parking areas are proposed No parking is proposed with this extension project. F. Collection facilities to control and separate contaminants shall be required where storm -water runoff from impervious surfaces would degrade or add to the pollution of receipt waters or adjacent properties. 3 V. Public Comments Any water discharged into the Duwamish River will meet all State and Federal water quality standards. G. The regulations of this chapter have been categorized in a number of sections; regardless of the categorization of the various regulations, all developments must comply with all applicable regulations. The proposed project will comply with all applicable Shoreline regulations. H. Development proposed on shorelines of the State shall maintain setbacks, provide easements or otherwise develop the site to permit a trail to be constructed or public access to continue where; 1. There is a proposed trail in the King County Trail system; or 2. Part of the site is presently being used and has historically been used for public access. All proposed work is within existing City of Tukwila right of way. In response to the Notice of Application, written comments were received from Stephenie Kramer with the Office of Archeology and Historic Preservation. Their comments were in regards to the possibility of discovering archaeological artifacts during construction. The heaviest excavating will occur outside of the shoreline area as part of overall project construction. The City will have an archeologist on site during the excavation for the sewer lift station. VI. SEPA and other City approvals A Determination of Non - Significance (DNS) (E04 -001) was issued on June 24, 2004. The DNS issued was for all work related to the sewer upgrade project. The applicant will be required to obtain any required Building and Public Work Permits. VII. Recommendations Approval of the application subject to the following conditions: 1. If archeological or historic materials are discovered during the construction, all activity must stop and the following agencies must be notified: City of Tukwila, Muckleshoot Cultural Resources Program and the State Archaeologist. 2. The applicant shall place tree protection fences around trees that will be near or within the work area. In order to protect the underlying root systems, the fences must be placed away from the trees a distance of one foot for every inch in caliper of the subject trees. 4 4 3. Trucks, construction equipment, and construction material cannot not be stored in the shoreline area. 4. The applicant must submit a landscaping plan, which will be approved by the Department of Community Development for the landscape restoration. The landscaping plan must be submitted prior to any work being performed in the shoreline area. 5 Summary of Primary Impacts: • Earth • Water Allentown Sewer Improvements 2 Staff Report The project area is generally flat with the steepest work area having a slope of three to five percent. Most work will be performed in areas with a slope between one and three percent. The underlain soil found in the area consists of alluvial deposits, which generally consist of loose to medium dense sands and sandy silts. In some areas, peat or very soft clay silts may be encountered. According to the SEPA Checklist, there is surface evidence of unstable soils. Previous construction activities in the area have indicated that clays and organic materials may be exposed during pipe installations.. Import material may be required in trench and roadway repair and reconstruction. There will not be a net increase in fill brought to the site. Fill that is removed from the project area will be disposed per the construction contract between the City and contractor. As with any construction activity there is a chance for erosion. Per City regulations an erosion control plan will have to be prepared and approved by the City. During construction BMPs will be employed to reduce any erosion from the project. •Air Some emissions from construction vehicles will occur during the construction period. Suspended particles from dust emissions will occur during construction activities. A diesel powered emergency generator will be used at the lift station during periods of power failure. The use of the generator will be temporary and on a limited basis. Site watering and other measures will be utilized during construction to reduce construction dust. The emergency generator will meet all regulations of the Puget Sound Air Quality Agency. The Duwamish River is located along both the westerly and southerly boundaries of Allentown. Portions of the project will be located within the 200 -foot buffer of the Duwamish River. The work will occur within the existing rights of way of 42 " Avenue and S. 115 Street. The project is not located in a FEMA designated floodplain, but the project is located within the Allentown Floodplain Control Zone. Allentown Sewer Improvements 3 Staff Report Groundwater may infiltrate into the trenches during construction. These trenches will be dewatered during construction and pumped away from the construction area. The dewatering will only occur during construction activities. There is very little risk of waste material entering the Duwamish River or the ground water. As sewer lines will be constructed there is a chance that a line will rupture leaking effluent. Yet, overall this project will provide positive environmental impacts to the area by gradually replacing existing septic systems with sanitary sewer. Stormwater runoff will remain unchanged as a result of this project. Plants Vegetation in the area includes deciduous trees, evergreen trees, shrubs, and grass. Since most of the project will be within the City of Tukwila's right of way, very little vegetation will be removed during construction activities. Native vegetation will be installed in those areas disturbed during the project. • Animals The Allentown Neighborhood is largely developed with single - family homes. Animals found in the area are typical of urban environments, such as small mammals and birds. The Duwamish River is home to a variety of fish species, including salmon. • Energy/Natural Resources Construction activities will use gasoline and diesel internal combustion engines. Electricity will be used to operate the sewer lift station and a diesel - powered generator will be used in the event of power failure. • Environmental Health Noise generated by construction equipment will occur on a short-term basis. The project is located in a residential neighborhood and the contractor will have to comply with the City's noise standards. Power failure could result in the discharge of effluent from the lift station. This risk will be reduced by providing secondary power supply and telemetry to provide early notification of potential problems. The lift station will produce a low hum when in operation. Noise from the lift station operation should be negligible since most of the lift station will be located under ground. Allentown Sewer Improvements Staff Report The emergency generator is exempted from noise regulations when operating in an emergency situation. However, the generator must meet noise regulations when it is tested. As the sending property is residential and the nearest receiving property is residential, the generator is not permitted to create a sound in excess of 55 dB(A), measured at the receiving property. The generator will be designed with an acoustical enclosure and other devices to reduce any noise impacts. • Land /Shoreline Use A majority of the project area is located within City of Tukwila right of way. Surrounding zoning classifications include, Low Density Residential, Residential Commercial Center, Manufacturing Industrial Center/Light and Manufacturing Industrial Center/Heavy. The Shoreline in the project area is classified as Urban under the King County Shoreline Master Program. • Housing No housing is proposed nor will any residential structures be removed. The presence of sewer lines in the area will likely generate additional platting and construction of new houses in the area. • Aesthetics 4 The only part of this project that will be above grade is the sewer lift station. The lift station will be 12 feet in height and a 14 -foot telemetry pole will be attached to the roof. The applicants have proposed minor landscaping to minimize the visual impacts associated with the lift station. The Planning Division will also encourage that the lift station use split face CMU blocks in the design of the building. • Light and Glare A floodlight mounted on a 20 foot utility pole and a wall mounted floodlight on the lift station building will be provided and automatically activated during night time hours. • Recreation Recreation amenities in the area include the Duwamish River and the Tukwila Community Center. * Allentown Sewer Improvements 5 Staff Report Historic and Cultural Preservation No known places or landmarks exist within the project area. The banks of the Duwamish River were utilized by Native Americans thus there is a small chance that some artifacts may be unearthed. The Public Works Department will have an archeologist on site during the excavation of the lift station. The City did receive a letter from the State of Office of Archeology and Historic Preservation concerning the possible presence of archeological artifacts. As with any construction activities if any landmarks or evident of historical, archaeological, scientific, or cultural importance are found on the site, work will stop immediately and the contractor will notify the City of Tukwila, Washington State Office of Archeology, and the Muckleshoot Indian Tribe. • Transportation The major streets that provide access to the project site include Interurban Avenue South and 42 Avenue South. As noted, the project will be located within existing City of Tukwila right of way. The contractor will be required to obtain a right of way permit from the City's Public Works Department. The right of way permit will require the submittal and approval of a traffic control plan. • Public Services Additional wastewater treatment is anticipated at METRO facilities as existing houses and new houses connect to sanitary sewer. • Utilities The area is served by the following utilities: Water City of Tukwila and Water District 125 Electricity City of Seattle Gas Puget Sound Energy Cable Comcast Telephone Qwest This project involves the upgrade and installation of sanitary sewer and new water lines within the Allentown Neighborhood. Sanitary waste disposal is currently done through septic systems. Houses in the neighborhood will be required to connect to sewer if one of the following occurs: Allentown Sewer Improvements 6 Staff Report Recommendation: • Addition of a bedroom or bathroom • The property is conveyed to another person • The existing septic systems fails • A short plat or subdivision Determination of Non - Significance STATE OF WASHINGTON DEPARTMENT OF ECOLOGY Northwest Regional Office • 3190 160th Avenue SE • Bellevue, Washington 98008 -5452 • (425) 649 -7000 September 2004 Mike Cusik, Project Engineer City of Tukwila Public Works Dept. 6300 Southcenter Blvd, Suite 100 Tukwila, WA 98188 Dear Mr. Cusik: RECEIVED SEP 1 0 2004 uKVVILA PUBLIC WORKS Re: City of Tukwila Permit # L04 -007 City of Tukwila Public Works — Owner /Applicant Ecology Shoreline Substantial Development Permit # 2004 -NW- 50068 -1 Purpose of this letter RECEIVED SEP 10 2004 COMMUNITY DEVELOPMENT This letter is to inform you that on September 2, 2004, the Department of Ecology received notice that' the City of Tukwila approved your application for a shoreline substantial development permit to install sanitary sewers, replace water lines with auxiliary equipment Ore hydrant, valves, services boxes, etc.), construct sidewalks, replace stormwater outfalls, install woody debris along the bank of the Duwamish River, and repave two City streets. The project area is generally located in the right of way area of 42 Avenue South and S 115 Street. The north boundary of the shoreline project area will extend to 40 Ave. South and the southern edge of the shoreline project will be South 124 Street. The project is in the Urban shoreline environment of the Duwamish River. The law requires you to wait at least twenty -one (21) days from the date Ecology received this decision from the City of Tukwila before you begin the specific activities authorized by this permit. Therefore, you cannot lawfully begin those activities until September 23, 2004. This waiting period is to allow anyone disagreeing with any aspect of your permit to appeal to the state Shorelines Hearings Board. If anyone does appeal your permit, you must wait until the appeal is over before you start work. The Shorelines Hearings Board will notify you by letter if they receive an appeal. To be sure that the Shorelines Hearings Board has not received an appeal, we advise you to call them at (360) 459 -6327 before you begin work. Other federal, state and local permits may be required in addition to this shoreline permit. Please contact me at 425- 649 -4260 or slan461 @,ecy.wa.gov if you have any questions about this letter. Sinc y, Sandr�7 ng ;�ioreline Pl er cc: Minnie Dhaliwal, City of Tukwila August 26, 2004 Mike Cusick Page 2 Please contact me at 425- 649 -4260 or slan461@ecy.wa.gov if you have any questions about this letter. Sincerely, A Via, Sandra Lange, Shoreline P anni' er cc: Brandon J. Miles, City of Tukwila City of Tukwila Department of Community Development / 6300 Southcenter BL, Suite 100 / Tukwila, WA 98188 / (206) 431 -3670 SHORELINE MANAGEMENT ACT OF 1971 PERMIT FOR SHORELINE MANAGEMENT SUBSTANTIAL DEVELOPMENT File Number: L04 - 007 Applied: 02/19/2004 Approved: 08/30/2004 Expiration: A permit is hereby granted to: TUKWILA DEPARTMENT OF PUBLIC WORKS to: Shoreline Substantial Development Permit to install sanitary sewers, replace water lines with auxiliary equipment (fire hydrant, valves, services boxes, etc), construct sidewalks, replace stormwater outfalls, install woody debris along the bank of the Duwamish River, and repave two City streets. The shoreline project area is generally located in the right of way area of 42nd Avenue South and S. 115th Street. The north boundary of the shoreline project area will extend to 40th Avenue South and the southern edge of the shoreline project will be South 124th Street. Upon the following property: Address: Parcel Number: Section/Township /Range: NW, NE, SE 10 23 - 04, ALLENTOWN PHASE 2 The following master program provisions are applicable to this development: King County Master Program Development under this permit shall comply with the following conditions. 1: If archeological or historic materials are discovered during the construction, all activity must stop and the following agencies must be notified: City of Tukwila, Muckleshoot Cultural Resources Program and the State Archaeologist. 2: The applicant shall place tree protection fences around trees that will be near or within the work area. In order to protect the underlying root systems, the fences must be placed away from the trees a distance of one foot for every inch in caliper of the subject trees. 3: Trucks, construction equipment, and construction material cannot not be stored in the shoreline area. 4: The applicant must submit a landscaping plan, which will be approved by the Department of Community Development for the landscape restoration. The landscaping plan must be submitted prior to any work being performed in the shoreline area. This permit is granted pursuant to the Shoreline Management Act of 1971 and nothing in this permit shall excuse the applicant from compliance with any other Federal, State or local statutes, ordinances or regulations applicable to this project, but not inconsistent with the Shoreline Management Act (Chapter 90.58 RCW). This permit may be rescinded pursuant to RCW 90.58.140(8) in the event the permittee fails to comply with the project as approved and any conditions thereof. CONSTRUCTION PURSUANT TO THIS PERMIT MAY NOT BEGIN AND IS NOT AUTHORIZED UNTIL TWENTY -ONE (21) DAYS FROM THE DATE OF FILING WITH THE DEPARTMENT OF ECOLOGY (D.O.E.) AS DEFINED IN RCW 90.58.140(6) AND WAC 173 -14 -090, OR UNTIL ALL REVIEW PROCEEDINGS INITIATED WITHIN TWENTY -ONE (21) DAYS FROM THE DATE OF SUCH FILING HAVE TERMINATED; EXCEPT AS PROVIDED IN RCW 90.58.140(5) (a) (b) (c). doc: Shore1971 L04 -007 Printed: 08 -27 -2004 doc: Shore1971 City of tukwila Department of Community Development / 6300 Southcenter BL, Suite 100 / Tukwila, WA 98188 / (206) 431 -3670 Pursuant to RCW 90.58.180 the decision by the City of Tukwila to issue this Shoreline Substantial Development Permit may only be appealed to the Shoreline Hearing Board. Appeals must be filed with the Shorelines Hearing Board within 21 -days from the filing of this permit with D.O.E. as defined in RCW 90.58.140. For more detail information on appeals, refer to RCW 90.58 and WAC 461.08. Av vk 3o � Zoo 4 1 Date: Steve Lancaster, Director of Department of Community Development Construction or substantial progress toward construction must begin within two (2) years from the effective date of the permit (the date the permit Is filed with D.O.E.), per RCW 90.58.143(4). L04 -007 Printed: 08 -27 -2004 Shoreline Management Act Permit Data Sheet and Transmittal Letter From: City of Tukwila Department of Community Development 6300 Southcenter Blvd. Suite 100 Seattle, WA 98188 Date of Transmittal: August 30, 2004 Date of Receipt: Type of Permit: Substantial Development Local Government Decision: Approval Applicant Information: Mike Cusick, Project Engineer City of Tukwila 6300 Southcenter Blvd, Suite 100 Tukwila, WA 98188 Is the applicant the property owner? Yes Location of the property: The shoreline project area is generally located in the right of way area of 42 Avenue South and S. 115 Street. The north boundary of the shoreline project area will extend to 40 Avenue South and the southern edge of the shoreline project will be South 124 Street. The project area is located in its entirety in the corporate limits of the City of Tukwila, King County, Washington within section 10 and 11, Township 23N, Range 4E., WM. Water Body Name: Duwamish River Shoreline of Statewide Significance: Yes Environment Designation: Urban To: Environmental Planner Department of Ecology Shoreline & Environmental Assistance Program P.O. Box 47600 Olympia, WA 98504 -7600 Description of Project: Shoreline Substantial Development Permit to install sanitary sewers, replace water lines with auxiliary equipment (fire hydrant, valves, services boxes, etc), construct sidewalks, replace stormwater outfalls, install woody debris along the bank of the Duwamish River, and repave two City streets. The project will allow existing houses to gradually connect to the City sewer. Notice of Application Date: 02/19/2004 Final Decision Date: 08/30/2004 By: Brandon J. Miles, Assistant Planner City of Tukwila 6300 Southcenter Blvd, Suite 100 Tukwila, WA 98188 Phone Number: (206) 431 -3684 Email: bmiles @ci.tukwila.wa.us FOR STAFF USE ONLY Sierra Type: P -SHORE Planner: File Number: Application Complete (Date: ) Project File Number: Application Incomplete (Date: ) Other File Numbers: CITY OF TUKWILA Department of Community Development 6300 Southcenter Boulevard, Tukwila, WA 98188 Telephone: (206) 431 -3670 FAX (206) 431 -3665 E -mail: tukplan@ci.tukwila.wa.us SHORELINE PERMIT APPLICATION NAME OF PROJECT/DEVELOPMENT: A I ` mow^' 1- LOCATION OF PROJECT/DEVELOPMENT: Give street address or, if vacant, indicate lot(s), block and subdivision, access street, and nearest intersection. LIST ALL 10 DIGIT PARCEL NUMBERS. ro s; wv 1.4.1 - L1 Id's/ G:VIPPHAN LANDUSE.APPSHORLINE.DOC. 09/11/03 f�. C>. ) Quarter: Section: t 0 Township: 23 Range: (This information may be found on your tax statement.) DEVELOPMENT COORDINATOR : The individual who: • has decision making authority on behalf of the 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: Lc a 1 v �t� T7/ICW 1 �a t C.,/ A a 1 free Address: 6 3-C)b 5 6A 'r'rc'— fa tr �v'i v- s.• � , /v d Phone: 2 oG .- '(3 3 G (pct FAX: E Signatu /% Date: 2'7 G To: Steve Lancaster From: Brandon J. MilesW1 Date: June 22, 2004 Re: Project Description: The City of Tukwila intends to provide new sanitary sewer facilities and replace existing water mains within portions of the "Allentown" area of the City. The project includes construction of approximately 9,600 lineal feet of 10 inch, 8 -inch, and 6 -inch water mains and related auxiliary items, to include fire hydrants, valves, services, etc. within the City owned right -of -way. The sanitary system will consist of nearly 11,000 lineal feet of 8 -inch gravity mains together with associated side sewer stubs and manholes. A lift station will be installed to pump the sewer into existing sanitary facilities. The work will also include surface restoration to streets when the project is completed. The project is located in its entirety in the corporate limits of the City of Tukwila, Washington, in Section 10, Township 23N., Range 4E., WM. More specifically, in the area of the City known as "Allentown ". This area is located west of I- SBurlington Northern Railroad right of way, east and north of the Duwamish River. Agencies with Jurisdiction: Department of Ecology Other Required Permits: SMA Permit Right of Way Permit Slue ' Department of Community Development Steve Lancaster, Director MEMORANDUM E4 -001 City of Tukwila Public Works Allentown Neighborhood Improvements City of Tukwila, DCD City of Tukwila, PW Steven M Mullet, Mayor 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 Applicant: Location of Proposal: Address: Parcel Number: Section/Township /Range: doc: DNS City of Tukwila Department of Community Development / 6300 Southcenter BI, Suite 100 / Tukwila, WA 98188 / (206)431 -3670 File Number: Applied: Issue Date: Status: DETERMINATION OF NON - SIGNIFICANCE (DNS) [04 -001 01/30/2004 do12-41Zral ISSUED CITY OF TUKWILA PW Lead Agency: City of Tukwila Description of Proposal: UPGRADING WATER AND STORM SYSTEM, ADDING SEWER SYSTEM TO ALLENTOWN NEIGHBORHOOD PHASE II. THIS PROJECT WAS ORIGINALLY SCHEDULED TO BE CONSTRUCTED IN 2001, BUT WAS DELAYED DUE TO LACK OF FUNDING. CONSTRUCTION OF APPROX. 9,600 LINEAL FEET OF 10 -INCH, 8 -INCH AND 6 -INCH WATER MAINS IN CITY RIGHT -OF -WAY. SANITARY SEWER SYSTEM CONSTRUCTION INCLUDES APPROX. 11,000 LINEAL FEET OF 8 -INCH GRAVITY MAINS TOGETHER WITH ASSOCIATED SIDE SEWER STUBS, AMNHOLES AND CONNECTIONS. A LIFT STATION, LOCATED AT THE INTERSECTION OF S. 122ST. AND 51ST PLACE SOUTH WILL BE INSTALLED. ALLENTOWN WATER & SEWER IMPROVEMENTS, The City has determined that the proposal does not have a probable significant adverse impact on the environment. An environmental impact statement (EIS) is not required under RCW 43.21c.030(2) (c). This decision was made after review of a completed environmental checklist and other information on file with the lead agency. This information is available to the public on request. This DNS is issued under WAC 197 -11- 340(2). Comments must be submitted by 0 1 /cl I T'O°`I The lead agency will not act on this proposal for 14 days from the date below. Lj 04, ( 2 Steve Lancaster, Responsible Official Date City of Tukwila 6300 Southcenter Blvd Tukwila, WA 98188 (206)431 -3670 Any appeal shall be linked to a specific governmental action. The State Environmental Policy Act is not intended to create a cause of action unrelated to a specific governmental action. Appeals of environmental determinations shall be commenced within the time period to appeal the governmental action that is subject to environmental review. (RCW 43.21 C.075) E04 -001 Printed: 06 -23 -2004 Dept. Of Community Development City of Tukwila AFFIDAVIT OF DISTRIBUTION r, � O �� J _ / DECLARE THAT: Notice of Public Hearing Determination of Non- Significance Notice of Public Meeting Mitigated Determination of Non - Significance ee 1 Board of Adjustment Agenda Pkt Project Name: � �� i ' �� ` .•„ -- Determination of Significance & Scoping Notice n! '� Board of Appeals Agenda Pkt . _ Project Number: t 'DO Notice of Action Planning Commission Agenda Pkt Official Notice . Short Subdivision Agenda Notice of Application Person requesting mailing: n L i Shoreline Mgmt Permit e) / U t ( Notice of Application for Shoreline Mgmt Permit -- __ FAX To Seattle Times Classifieds Mail: Gail Muller Classifieds PO Box 70 - Seattle WA 98111 Other In Was mailed to each of the addresses listed on this year 20 P:GINAWYNETTA/FORMS /AFFIDAVIT -MAIL 08/29/003:31 PM 4 4 day o 64A -a-in the ee 1 f1JJ2k Aqq Project Name: � �� i ' �� ` .•„ -- , n! '� v _Irk:ameas! . _ Project Number: t 'DO Mailer's Signature: /1 ,0 . Person requesting mailing: n L i e) / U t ( �--/ Was mailed to each of the addresses listed on this year 20 P:GINAWYNETTA/FORMS /AFFIDAVIT -MAIL 08/29/003:31 PM 4 4 day o 64A -a-in the ( ) U.S. ARMY CORPS OF ENGINEERS () FEDERAL HIGHWAY ADMINISTRATION () DEPT OF FISH & WILDLIFE ( ) OFFICE OF ARCHAEOLOGY ( ) TRANSPORTATION DEPARTMENT () DEPT NATURAL RESOURCES () OFFICE OF THE GOVERNOR () DEPT OF COMM. TRADE & ECONOMIC DEV. () DEPT OF FISHERIES & WILDLIFE () BOUNDARY REVIEW BOARD () FIRE DISTRICT #11 () FIRE DISTRICT #2 () K.C. WASTEWATER TREATMENT DIVISION )44 C. DEPT OF PARKS & REC 1 ASSESSOR'S OFFICE ( ) TUKWILA SCHOOL DISTRICT ( ) TUKWILA LIBRARY () RENTON LIBRARY () KENT LIBRARY ( ) CITY OF SEATTLE LIBRARY () INVEST () SEATTLE CITY UGHT () PUGET SOUND ENERGY () HIGHLINE WATER DISTRICT () SEATTLE WATER DEPARTMENT ( ) AT &T CABLE SERVICES () KENT PLANNING DEPT ( ) TUKWILA CITY DEPARTMENTS: ( ) FIRE () FINANCE ( ) BUILDING ( ) MAYOR ( ) PUBLIC WORKS ( ) POLICE () PLANNING ( ) PARKS & REC. () CITY CLERK () PUGET SOUND REGIONAL COUNCIL K C CHAMBER OF COMMERCE MUCKLESHOOT INDIAN TRIBE CULTURAL RESOURCES PROGRAM ISHERIES PROGRAM WILDLIFE PROGRAM () SEATTLE TIMES ()SOUTH COUNTY JOURNAL P:WDMINISTRATIV E\FORMS \CHKLIST.DOC CHEC ST? ENVIRONMENTAL REVIEW /SHORELINE PEA MAILINGS FEDERAL AGENCIES WASHINGTON STATE AGENCIES ( ) DEPT OF SOCIAL & HEALTH SERV. ,D EPT OF ECOLOGY, SHORELAND DIV DEPT OF ECOLOGY, SEPA DMSION• ( ) OFFICE OF ATTORNEY GENERAL • SEND CHKLIST W/ DETERMINATIONS • SEND SITE MAPS WITH DECISION KING COUNTY AGENCIES SCHOOLS/LIBRARIES UTILITIES CITY AGENCIES OTHER LOCAL AGE MEDIA NCIES () U.S. ENVIRONMENTAL PROTECTION AGENCY () U.S. DEPT OF H.U.D. () NATIONAL MARINE FISHERIES SERVICE () HEALTH DEPT () PORT OF SEATTLE ( ) KC. DEV & ENV1R SERVICES-SEPA INFO CNTR () K.C. TRANSIT DIVISION - SEPA OFFICIAL () KC. LAND & WATER RESOURCES () FOSTER LIBRARY () K C PUBUC LIBRARY ()HIGHLINE SCHOOL DISTRICT ( ) SEATTLE SCHOOL DISTRICT ( ) RENTON SCHOOL DISTRICT ( ) OLYMPIC PIPELINE ( ) VAL VUE SEWER DISTRICT () WATER DISTRICT #20 ( ) WATER DISTRICT #125 ( ) CITY OF RENTON PUBLIC WORKS () BRYN MAWR- LAKERIDGE SEWERANATER DISTRICT () RENTON PLANNING DEPT ( ) ( ) CITY OF BURIEN ( ) TUKWILA PLANNING COMMISSION MEMBERS ( ) TUKWILA CITY COUNCIL MEMBERS () CITY OF SEATTLE - SEPA INFO CENTER - DCLU () STRATEGIC PLANNING OFFICE' • NOTICE OF ALL SEATTLE RELATED PLNG PROJ. DUWAMISH INDIAN TRIBE ( P.S. AIR POLLUTION CLEAN AGENCY ( ) SOUND TRANSIT )(DUWAMISH RIVER CLEAN -UP COALITION SEND NOTICE OF ALL APPUCATIONS ON DUWAMISH RIVER () HIGHLINE TIMES ( ) CI.TUKWIIA.WA.US.WWW P: W DMINISTRATIVE \FORMS \CHICLIST.DOC P LIC NOTICE MAILINGS FOR YL 4 RMITS SEPA MAILINGS Mail to: (comment period starts on date of mailing) Dept. of Ecology Environmental Review Section *Applicant *Other agencies as necessary (checked off on attached list) *Any parties of record * send only the staff report, site plan and the SEPA Determination KC Transit Division — SEPA Official would like to receive information about all projects that might affect transit demand Send These Documents to DOE: SEPA Determination (3 -part from Sierra) Findings (staff report, usu. with MDNS) SEPA Checklist (filled out by applicant) Drawings/Plans of project (site plan, elevations, etc. from PMT's) Affidavit of Distribution (notice was mailed or sent to newspaper) SHORELINE MAILINGS: Notice of Application for a Substantial Development Permit must be mailed to owners and to property owners within 500 feet of subject property, comments are due 30 days after the notice of application is mailed/posted. The notice of Application for Shoreline Substantial Development Permit must include a statement that any person desiring to submit written comments on the application or desiring to receive notification of the final decision on the application may do so within 30 days of the notice of application. If a hearing will be held on the application, the hearing notice must include the information that written comments may be submitted, or oral presentation made at the hearing. Shoreline Permit Notice of Decision: Mail to: (within 8 days of decision; 21 -day appeal period begins date received by DOE) Department of Ecology Shorelands Section State Attorney General *Applicant *Indian Tribes *Other agencies as necessary (checked off on attached list). *Any parties of record * send only the staff report, site plan and the SEPA Determination Send These Documents to DOE and Attorney General: Permit Data Sheet Shoreline Substantial Development Permit (3 -part from Sierra) Findings (staff report or memo) . Shoreline Permit Application Form (filled out by applicant) Drawings/Plans of project (site plan, elevations, etc. from PMT's) — Site plan, with mean high water mark & improvements — Cross- sections of site with structures & shoreline Grading Plan - Vicinity map SEPA determination (3 -part from Sierra) Findings (staff report or memo) SEPA Checklist (filled out by applicant) Any background studies related to impacts on shoreline Notice of Application Affidavit of Distribution (notice was mailed) OTHER INFORMATION: City of Tukwila Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director NOTICE OF APPLICATION DATED May 13, 2004 The following applications have been submitted to the City of Tukwila Department of Community Development for review and decision. APPLICANT: AGENT: LOCATION: City of Tukwila Public Works Michael Cusick, City of Tukwila Public Works Department Allentown: The project is located within the following street right of ways: 42 " Avenue South; South 115 Street; 40 Avenue South; 44 Place South; South 122 " Street; South 124 Street; South 125 Street; 50 Place South; 51 Place South; 49 Avenue South, and 50 Avenue South. In the NW 1/4, NE '/, SE, '/a of Section 10, Township 23 North, Range 4 East, WM, in King County, Washington. OWNER OF THE PROPERTY: The project is within the right of way of the City of Tukwila FILE NUMBERS: L04 -007, E04 -001 PROPOSAL: Requests a Shoreline Permit and SEPA Determination to provide new sanitary sewer facilities, as well as replacing existing water mains within portions of the "Allentown" area of the City. The project includes construction of approximately 9,600 lineal feet of 10 -inch, 8 -inch, and 6- inch water mains and related auxiliary items, to include fire hydrants, valves, services, etc, within the City right of way. The sanitary system will consist of nearly 11,000 lineal feet of 8 -inch gravity mains together with associated side sewers stubs, manholes, and connections. A lift station, located at the intersection of S. 122 " Street and 51 Avenue South, will be installed to pump the sewer into existing sanitary facilities. The applicant has submitted the following information for review by the City of Tukwila Department of Community Development: Geotechnical Report, prepared by GEO Engineers, Inc OTHER REQUIRED PERMITS: Right of Way Permit, City of Tukwila Public Works These files can be reviewed at the Department of Community Development, 6300 Southcenter Blvd., #100, Tukwila, WA. Please call (206) 431 -3670 to ensure that the file(s) will be available. OPPORTUNITY FOR PUBLIC COMMENT You can submit comments on this application. You must submit your comments regarding the Shoreline Permit, SEPA Determination, and Unclassified Use Permit in writing to the Department of Community Development by 5:00 p.m. June 13, 2003. If you have questions about this proposal contact Brandon J. Miles, Planner -in- charge of this file at (206) 431 - 3670 or bmiles @ci.tukwila.wa.us. Anyone who submits written comments will become parties of record and will be notified of any decision on this project. 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 The Unclassified Use Permit will require a public hearing before the City Council. You will receive a separate notice informing you of the time and place of the public hearing. APPEALS You may request a copy of any decision by the City on a project or obtain information on your appeal rights by contacting the Department of Community Development at (206 )-431 -3670. A Shoreline Permit can only be appealed to the State Shoreline Hearings Board. DATE OF APPLICATION: NOTICE OF COMPLETE APPLICATION: NOTICE OF APPLICATION POSTED: March 2, 2004 May 7, 2004 May 13, 2004 Y Dept: Of Community,. Development City of Tukwila AFFIDAVIT OF DISTRIBUTION I , HEREBY DECLARE THAT: 1,6 Notice of Public Hearing Determination of Non - Significance Notice of Public Meeting_ Mitigated Determination of Non - Significance Board of Adjustment Agenda Pkt Determination of Significance & Scoping Notice Board of Appeals Agenda Pkt Notice of Action Planning Commission Agenda Pkt Official Notice Short Subdivision Agenda Notice of Application Shoreline Mgmt Permit . Notice of Application for Shoreline Mgmt Permit __ _ FAX To Seattle Times Classifieds Mail: Gail Muller Classifieds PO Box 70 - Seattle WA 98111 Other Was mailed to each of.the addresses listed on this/ o day of year 20 n the Project Number: Mailer's Signature: l / /i4 f ;3‘Z Person requesting mai in P:GINAWYNETTA/FORMS/AFFIDAVIT-MAIL 08/29/003:31 PM CITY OF TUKWILA SHORELINE PERMIT ALLENTOWN WATER AND SEWER PROJECT CITY PROJECT #95- WT01 -2 AND 95- SW02 -2 February 17, 2004 1.a - 01 RECEIVFD 1 FEB 19 2004 COMMUNITY DEVELOPMENT Prepared by: Gray & Osborne, Inc. Seattle, Washington Tel: (206) 284 -0860 Fax: (206) 283 - 3206 G &O Project #00539 PART 1: APPLICATION FORMS r 1. Application Checklist See attached for the completed Application Checklist 0 ala CITY OF TUKWILA Department of Community Development 6300 Southcenter Boulevard, Tukwila, WA 98188 Telephone: (206) 431 -3670 FAX (206) 431 -3665 E tukplan@ci.tukwila.wa.us w TUKWILA w SHORELINE PERMIT INFORMATION State Shoreline requirements are implemented through the Tukwila Zoning Code, Shoreline Overlay District (Tukwila Municipal Code (TMC) 18.44). Areas annexed to the City after the 1974 adoption of the Tukwila Shoreline Master Plan are subject to the King County Shoreline Master Program. Generally, the areas still subject to King County's Shoreline regulations are located north of the 42° Avenue South bridge. REQUIREMENTS: All improvements over $5,000 and within 200 ft. of the Duwamish/Green River and associated wetlands require a "Shoreline Development Permit" except the following: • Owner - occupied construction of a single family house that does not exceed 35 feet in height and/or pier construction when the pier construction costs are less than $5,000 in salt water and $10,000 in fresh water, • Normal maintenance and repair • Normal bulkheads common to single family residences; • Habitat improvements which are part of a watershed plan; • Hazardous waste remediation when approved by the State; • Emergency construction needed to protect property from imminent danger; PROCEDURES: Within 28 days of receiving your application, City Staff determines if it is complete, based on the following "Complete Application Checklist. If not, you will be mailed a letter outlining what additional information is needed. A shoreline permit decision is made administratively by the Director of the Department of Community Development. If the project also involves other land use actions, such as design review, that require a public hearing, the applicant may request that the Shoreline Permit be heard along with the other permit(s) at the public hearing. The City's decision will be sent for review by the Department of Ecology, which has 21 days to take jurisdiction. No construction may occur during that time, although building permits may be reviewed. Info rmation R equired ` Ma waived in unusual cases, upon approval of both' Public W or k s and Planning :: .r y , .,. ,,, .,,. Information lt'aived Offi U se Only { Com & Conditi 4 iiy� rye /� APPLICATION FORMS: 1. Application Checklist one (1) copy, indicating items submitted with application. 2. Complete Application Packet eight (8) copies and one set of High Quality Photo Reductions, reduced to 81t2" to 11" of all plans. (See Project Description and Analysis, Site Plans and Evaluations). 3. Application Fee ($2,000). 4. SEPA Environmental Checklist: eight (8) copies and fee ($500). PUBLIC NOTICE MATERIALS: 5. King County Assessor's map(s) which shows the location of each property within 500 feet of the subject lot 6. Two (2) sets of mailing labels for all property owners and tenants (residents or businesses) within 500 feet of the subject property. (Note: Each unit in multiple- family buildings, e.g. apartments, condos, trailer parks — must be included). 7. A 4' x 4' Public Notice board will be required on -site within 14 days of the Department determining that a complete application has been received. PROPERTY INFORMATION: 8. Vicinity Map with site location. 9. Surrounding Land Use Map for all existing land uses within a 1,000 foot radius from the lot's property lines. Once an application is determined to be complete, it is considered "vested" — that is, the application is considered under the zoning and other land use controls in effect at the time the complete application is filed However, having a complete application in no way limits the City's ability to require additional information as needed to establish consistency with development standards. v it terl ear 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., revised colored renderings). Application review will not begin until it is determined to be complete. 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). COMPLETE APPLICATION CHECKLIST TABLE Ltf © Xnlahon;Rcqutre d rved i u fwuaf 7. cases upon approvalvf PubMa Works andPlanning , y , Information ,, Wa i v ed PbWk%P Of Ce Y7 Comments & Conditions t x r 10. Title Report Clearly establish status as legal lot(s) of record, ownership, all known easements and encumbrances. 11. Lot lines for 300 It from the site's property lines including right -of -ways. PROJECT DESCRIPTION AND ANALYSIS: 12. A written discussion of project consistency with each decision criteria. (See Application), SITE PLANS: 13. One set of all plans and analyses shall be stamped by a licensed professional surveyor, architect or engineer, and have an original signature. Additional copies of the signed set may be submitted to satisfy the total number of copies required. Any revisions must also comply with this criteria. 14. A boundary and topographic survey (2 ft. contours including a minimum 20 ft. beyond the property line) with all structures, improvements, easements, encumbrances and right -of -way width/infrastructure. Elevations shall be City of Tukwila datum (NGV 1929 datum for 100 year flood elevation with equation to . City of Tukwila datum). This shall be stamped by the surveyor. 15. Location of all sensitive areas (e.g., streams, wetlands, slopes over 20%, coal mine areas and important geological and archaeological sites.). Provide sensitive area studies as needed per TMC 18.45. Also show trees over 4" caliper, indicating those to be retained. All proposed sensitive area and tree protection measures shall be shown. 16. 100 yr. flood plain boundary and elevation as shown on FEMA maps. X 17. Proposed lot lines (solid), existing lot lines (dashed), if also applying for a short plat or subdivision. 18. Building footprint showing changes in elevation, site improvements with sufficient dimensions to be accurately described and located (e.g., building square footage keyed to parking standards, driveways, • firelanes, parking layout, loading and service areas, landscape areas, rockeries/retaining walls, fences, pedestrian and recreation features, building and site lighting, mechanical units (with screening integrated with building design), and any street furniture. 19. Fire access lanes and turn- arounds, per Fire Department standards. In ftinpa con Re watved in nttsttal cases ,upon approval of bo Publru� Works and lrang Pan / a 1nforrna : Waiv n oi� Use Only % yq c Commen 20. For sewer and water (domestic and fire): Existing and proposed utility easements and improvements, on site and in street. 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 hie are needed). 21. Document sewer and water availability if provided by other than the City of Tukwila. 22. Storm drainage: Proposed schematic design for all conveyance systems, water quality features and detention structures per TMC 16.54.060(D) (e.g., detention ponds/vaults, frop-T elbows, coalescing plate separators, and bio Include a Level One downstream analysis per TMC 15.54.060(D), and a narrative discussion of consistency with the King County Surface Water Drainage Manual's Core and Special Requirements. 23. Locate the nearest existing hydrant and all proposed hydrants. 24. Schematic road design. 25. Geotechnical analysis. River bank stability analyses to be included in a flood zone control permit. 26. Landscape planting plan by a Washington State licensed landscape architect. One set of all plans and analyses shall have an original ASLA stamp and signature. Additional copies of the signed set may be submitted to satisfy the total number of copies required. Any revisions must also comply with this criteria. 27. Lighting plan: Include location and type of street and site lighting, site light levels (foot - candles) and how lighting will be contained on -site (e.g. lights shielded to prevent direct off site illumination and maximum 2 foot-candles at the property line). 28. Signage per Tukwila Sign Code. 29. For stream frontages: 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). Iwo IMP Ih fiiiiii 0iii ] tllite M ay be »faived rn 1610a rt -cas upon uppr ovatof both Pidi Ie Work an ' Pkiii ;� r fnforraation ,Winved , ; Qffii Use Comments r 'o�rdrtusrs� r %, „ :-;,;/ SITE PLANS FOR SHORELINE PROJECTS: 30. Existing top of bank, landward catch point toe of levee, riverbank toe, mean high water mark and base flood elevation (i.e., the 100 year flood). . 31. For work riverward of the MHWM: Distance work extends into the river and distance to Federal projects and navigation channels. 32. Limits of the 40' River, 100' Low Impact and 200' High Impact environments. 33. Dike/ riverbank maintenance easement (min 30' from the top of bank). 34. Construction limit lines and areas of clearing/grading/filling including volume and type of fill or extracted material. ELEVATIONS (Do not need to submit if project is subject to Design Review) 35. Building elevations: with dimensioned and scaleable facades, features, accents, colors and materials. Colors and materials shall be keyed to a Colors and Materials board. 36. Colored elevations. 37. Models or a photomontage of the site at completion and at three years, from the nearest downslope street A model or photomontage is required for multi - family developments over 6 units (TMC 18.60.040). A photomontage is required for Planned Residential Developments. 38. A rendering is optional. If submitted, it must accurately show the project and be from a realistic perspective (e.g., 5.5 ft. height above the sidewalk). CROSS - SECTIONS FOR SHORELINE PROJECTS 39. SHORELINE CROSS SECTIONS at maximum 75' intervals along the shoreline showing: • Existing and proposed elevations and improvements, • Limits of the 40' River, 100' Low Impact and 200' High Impact environments, • The top of bank elevation, landward catch point toe of levee, riverbank toe, mean high water mark and base flood elevation (i.e., the 100 year flood), and • Dike/ riverbank maintenance easement (min. 30' from the top of bank). wr aird rr IOW FOR STAFF USE ONLY Sierra Type: P -SHORE Planner: File Number: L NI .. p Application Complete (Date: ) Project File Number: Application Incomplete (Date: ) Other File Numbers: NAME OF PROJECT/DEVELOPMENT: ALLEI•T'ownt wMeP_ AND %Elme2 S •isitu Name: '3'ON FFI 701∎1 P. E. Address: . a4 0 I '344 -Isro . cT_ s.w . t44)4 A; 01-114 A kna IS Sol- ▪ Phone: ?roc -- 7.5 - 42.6 G. FAX: 3co 42.r{o Signature: - Date: 2 law IP CITY OF TUKWILA Department of Community Development 6300 Southcenter Boulevard, Tukwila, WA 98188 Telephone: (206) 431 -3670 FAX (206) 431 -3665 E-mail: tukplan@ci.tukwila.wa.us APPLICATION LOCATION OF PROJECT/DEVELOPMENT: Give street address or, if vacant, indicate lot(s), block and subdivision, access street, and nearest intersection. LIST ALL 10 DIGIT PARCEL NUMBERS Loc/eeer THE Fd- 1..0w1 1 ' 1 C 't s7'tt-Eer - oP- vvAl 4L' 4LE. So.,iTF� So.,Tri IIS • � 440 Ave. Se■dTl4; 4If Ds pt+ Swig, So -7 - 4 iu '=• sr. Sosr» I &' (:11 ; Sb`IIK I z r 37 5)T pL So.n4; St d LAct so.rr+4 144 Ave , so.ri}1; APO SD t Auepuf so✓' 4 Nw, NE, Quarter. se Section: 10 Township: Z3 N Range: `( E (This information may be found on your tax statement.) twIPP-0€EMEN7S - P 19445E z SHORELINE PERMIT DEVELOPMENT COORDINATOR : The individual who: • has decision making authority on behalf of the 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. ihrt 2. Complete Application Package See attached for the complete Application Package 3. Application Fee This requirement has been waived based on the fact that this is a City of Tukwila funded Project. a 4. SEPA Environmental Checklist See attached for a copy of the SEPA Environmental Checklist. STATE ENVIRONMENTAL POLICY ACT ENVIRONMENTAL CHECKLIST A. BACKGROUND 1. Name of proposed project: Allentown Water and Sewer System Improvement Project — Phase II 2. Name of applicant: City of Tukwila 3. Address and phone number of applicant and contact person: Applicant Engineer City of Tukwila Gray & Osborne, Inc. 6300 Southcenter Blvd., #101 701 Dexter Ave. N., #200 Tukwila, WA 98188 Seattle, WA 98109 Jim Morrow, P.E. Tim Osborne, P.E. Director of Public Works Project Engineer (206) 433 - 0179 (206) 284 -0860 4. Date checklist prepared: February, 2001 5. Agency requesting checklist: City of Tukwila, Washington 6. Proposed timing or schedule (including phasing, if applicable): Construction is scheduled for June of 2001 7. PIans for future additions, expansion, or further activity related to or connected with this proposal: No, this project is the final phase of the Allentown water and sewer improvements. 8. Environmental information you know about that has been prepared, or will be prepared, directly related to this proposal: As part of the design of the Phase I improvements, several random soil and/or drilling was conducted to ascertain the sub- surface conditions in an along the proposed utility route. 9. Applications that are pending for governmental approvals of other proposals directly affecting the property covered by your proposal: None 10. List any government approvals or permits that will be needed for the proposal: 1 Noe 11. Brief complete description of the proposal, including the proposed uses and B. ENVIRONMENTAL ELEMENTS 1. Earth b. What is the steepest slope on the site (approximate percent slope)? Approximately 4% to 5% slope in steepest areas (embankments). Generally 1% to 3% along the roadway corridors. c. That general types of soils are found on the site (for example, clay, sand, gravel, peat, muck)? If you know the classification of agricultural soils, specify them and note any prime farmland. The underlain soils generally found in this area consist of alluvial deposits. The alluvial deposits generally consist of loose to medium dense sands and sandy silts. Peat and/or very soft clay silts may be encountered in some areas. The following approvals and permits shall be required and obtained from the City of Tukwila: Construction Plan approval Shoreline permit Right -of -Way Construction Permit Design Review (Lift Station) the size of the project and site: The City of Tukwila intends to provide new sanitary sewer facilities, as well as replacing existing water mains within portions of the "Allentown" area of the City. The project includes construction of approximately 9,600 lineal feet of 10- inch, 8 -inch and 6 -inch water mains and related auxiliary items, to include fire hydrants, valves, services, etc. within the City owned right -of -way, commonly known as 42 Avenue South, South 115 Street, 40 Avenue South 44 Place South, South 122n Street, South 124 Street, South 125 Street, 50'� Place South, 51 Place South, 49 Avenue South and 50 Avenue South. The sanitary system will consist of nearly 11,000 lineal feet of 8 -inch gravity mains together with associated side sewer stubs, manholes and connections also located in the above noted streets. A lift station, located at the intersection of South l22" d Street and 50 Place South, will be installed to pump the sewer into existing sanitary facilities. Work will also include surface restoration (in kind). See attached exhibit. 12. Location of the proposal, including street address, if any, and section, township, and range: Provide a legal description, site plan, vicinity map, and topographic map, if reasonably available. The project is located in its entirety in the corporate limits of the City of Tukwila, King County, Washington within Section 10 and 11, Township 23N, Range 4E. More specifically, in the area of the City more commonly known as "Allentown ". This area is located west of I- SBurlington Northern Railroad right -of -way, east and north of the Duwamish River. Please reference the attached exhibit. a. General description of the site (underline one): Flat, rolling, hilly, steep slopes, mountainous, other: d. Are there surface indications or history of unstable soils in the immediate vicinity? If so, describe. While previous construction in adjacent areas have indicated that clays and organic materials may be exposed during pipe installations, there is no surface evidence of "unstable soils" in the immediate vicinity. e. Describe the purpose, type, and approximate quantities of any filling or grading proposed. Indicate source of fill. Import material shall likely be required in trench and roadway repair /reconstruction. No net increase in fill will be provided. Unsuitable trench soils will be loaded and hauled to waste per the City approved construction contract documents. Minimal roadway grading will be required for roadway repair. f. Could erosion occur as a result of clearing, construction, or use? Erosion of cleared areas or of stockpiled materials adjacent to pipe trenches may occur during periods of wet weather throughout the construction phase. Temporary erosion control mitigation shall be contractually mandated, installed and maintained throughout the construction process. Inspection of the temporary erosion control measures shall be conducted until such a time that the construction is complete and vegetation is established. About what percent of the site will be covered with impervious surfaces after project construction (for example, asphalt or buildings)? The proposed underground sewer /water facilities are to be located within areas which are currently covered with impervious area. After construction, all surfaces will be replaced to preconstruction conditions. At the location of the lift station, additional impervious area will be added. The additional impervious area will include the proposed building and asphalt. h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any: g. * ** 2. Air The Contractor shall employ King County's best management practices to minimize the effects of erosion. The continual use of straw bails, silt fencing, etc. shall be required during the construction process, as required by the contract. In addition, the project shall be temporarily "shut down" during times of inclement weather conditions. a. What types of emissions to the air would result from the proposal (i.e. dust, automobile, odors, industrial wood smoke) during construction and when the project is completed? If any, generally describe and give approximate quantities, if known. Normal exhaust emissions from construction equipment, both diesel and gas operated equipment, is expected during construction. Dust may be emitted during the construction of the project. A water truck shall be employed on -site as needed to control any fugitive dust problems. 3 Y.. b. Are there any off -site sources of emissions or odor that may affect your proposal? If so, generally describe. No c. Proposed measures to reduce or control emissions or other impacts to air, if any: 3. Water The construction contract will include provisions for dust control during construction. Street cleaning/sweeping and compliance with Puget Sound Clean Air Agency shall be required by Contract. a. Surface: 1) Is there any surface water body on or in the immediate vicinity of the site (including year -round and seasonal streams, saltwater, lakes, ponds, wetlands)? If yes, describe type and provide names. If appropriate, state what stream or river it flows into. The Duwamish River is located (borders) along both the westerly and southerly boundaries of the Allentown area of the City. 2) Will the project require any work over, in, or adjacent to (within 200 feet) the described waters? If yes, please describe and attach available plans. Work is to be completed, within existing City right -of -way limits, in areas adjacent to the Duwamish River. Please see attached exhibit. Work will not be completed over or in the "waters ". 3) Estimate the amount of fill and dredge material that would be placed in or removed from surface water or wetlands and indicate the area of the site that would be affected. Indicate the source of fill material. None 4) Will the proposal require surface water withdrawals or diversions? Give general description, purpose, and approximate quantities, if known. Trench dewatering with conventional trench sump pumps (trash pumps) are anticipated due to expected groundwater seepage into the trench section during pipe construction. 5) Does the proposal lie within a 100 -year floodplain? If so, note location on the site plan. Although the proposed improvement are not located within a FEMA designated floodplain, the project is located within the Allentown Floodplain Control Zone. NM ..r 6 ) Does the proposal involve any discharges of waste materials to surface waters? If so, describe the type of waste and anticipated volume of discharge. No b. Ground: c. Water Runoff (including storm water): 1) Describe the source of runoff (including storm water) and method of collection and disposal, if any (include quantities, if known). Where will this water flow? Will this water flow into other waters? If so, describe. 4. Plants 1) Will ground water be withdrawn, or will water be discharged to ground water? Give general description, purpose, and approximate quantities, if known. Dewatering is anticipated to occur due to the seepage of groundwater into the trench excavation area, during utility installation. 2) Describe waste material that will be discharged into the ground from septic tanks or other sources, if any; describe the general size of the system, the number of such systems, the number of houses to be served (if applicable), or the number of animals or humans the system(s) are expected to serve. None anticipated. The completion of this project should result in the reduction of environmental damage currently caused by the utilization of "failed" private septic drain fields in the area which will be abandoned, over time, as the result of connections to the permanent public sewer system being installed as a part or this project. All stormwater runoff, within the project area, will continue to be collected and channeled into the existing storm drainage system, as it currently occurs. Minor stormwater improvements are proposed to alleviate some troublesome areas. 2) Could waste materials enter ground or surface waters? If so, generally describe. No d. Proposed measures to reduce or control surface, ground, and runoff water impacts, if any: Methods to minimize and mitigate construction related erosion will be provided for in the design process and further required within the contract documents. Methods will include the use of silt fencing, filter fabric and straw bales to contain the silt on -site and the placing of filter fabric over catch basins to restrict silt from entering the existing storm system. Any significant dewatering will be routed to existing roadside ditches, as may be approved by the City. X deciduous tree: alder, maple, aspen, other X evergreen tree: fir, cedar, pine, other (not within construction limits) X shrubs (not within construction limits) X grass (not within construction limits) •r pasture crop or grain wet soil plants: cattail, buttercup, bullrush, skunk cabbage, other water plants: water lily, eelgrass, milfoil, other other types of vegetation a. Check or circle types of vegetation found on the site: b. What kind and amount of vegetation will be removed or altered? The project will be primarily aligned within existing City -owned paved streets and graveled shoulders. The installation of the individual side sewers and the water main will likely disturb some existing roadside grassed areas. These areas will be replanted with new seed, as applicable. At the location of the lift station, minor amounts of grass will be removed to accommodate the installation of the station. c. List threatened or endangered species known to be on or near the site. None d. Proposed landscaping, use of native plants, or other measures to preserve or enhance vegetation on the site, if any: At the location of the lift station, minor landscaping elements will be incorporated into the lift station site plan. The landscaping shall include small shrubs, as required/desired by the City. Grassed areas disturbed by the construction of this project shall be seeded. 5. Animals a. Underline any birds and animals which have been observed on or near the site or are known to be on or near the site: birds: hawk, heron, eagle, songbirds, other: mammals :deer, bear, elk, beaver, other: None fish: bass, salmon, trout, herring, shellfish, other: None b. List any threatened or endangered species known to be on or near the site. None c. Is the site part of a migration route? If so, explain. No d. Proposed measures to preserve or enhance wildlife, if any: N/A 6. Energy and Natural Resources a. What kinds of energy (electric, natural gas, oil, wood stove, solar) will be used to meet the completed project's energy needs? Describe whether it will be used for heating, manufacturing, etc. The construction equipment during construction operations shall use oil, gas, and diesel fuel. The lift station is proposed to utilize electrical power to run the pumps. In addition, a diesel generator will be provided on - site when electrical power is not available. b. Would your project affect the potential use of solar energy by adjacent properties? If so, generally describe: No c. What kinds of energy conservation features are included in the plans of this proposal? List other proposed measures to reduce or control energy impacts, if any: The sewage lift station will utilize energy efficient pump motors as required by the Washington State Energy Code. 7. Environmental Health a. Are there any environmental health hazards, including exposure to toxic chemicals, risk of fire and explosion, spill, or hazardous waste, that could occur as a result of this proposal? If so, describe. b. Noise No 1) Describe special emergency services that might be required. None 2) Proposed measures to reduce or control environmental health hazards, if any: No environmental health hazards are contemplated. 1) What types of noise exist in the area which may affect your project (for example: traffic, equipment and operation, other)? The construction project may experience noise from vehicular traffic and the nearby BNRR facilities. 2) What types and levels of noise would be created by or associated with the project on a short or a long -term basis (for example: traffic, construction, operation, other)? Indicate what hours noise would come from the site. Short term noise from construction equipment during the allowable ,,,,, working hours shall be expected during the course of construction. The as Noise associated with the lift station will be minimal. The pumps utilize low RPM, submersible motors which will not run continuously. 3) Proposed measures to reduce or control noise impacts, if any: Working days and hours will be established by the contract limiting working hours to weekdays (non - holiday) from 7:00 A.M. to 6:00 P.M., which comply to the guidelines established by the City of Tukwila Municipal Code, (Title 8.22.160) and the City's noise ordinance number 1363. N/A operation of construction equipment shall adhere to the local noise ordinance and the normal City recognized work hours. The standby diesel generator will be designed with an acoustical enclosure and other devices to reduce the impact of noise. 8. Land and Shoreline Use a. What is the current use of the site and adjacent properties? A majority of the project site is currently used as a City (public) owned Street (right -of -way). Land use adjacent to the project corridor is currently zoned as residential with limited commercial/industrial areas. b. Has the site been used for agriculture? Is so, describe. No c. Describe any structures on the site. Utility poles, power poles, and utility boxes exist within the project corridor. Existing underground utilities consist of water lines, sanitary sewers, storm drainage pipes, catch basins, manholes, gas mains (high pressure) and telephone lines. d. Will any structures be demolished? If so, what? Portions of existing City-owned utilities (mostly all located underground) will be removed and wastehauled to allow for the installation of the proposed sanitary sewer and water facilities. Most of the existing facilities will be abandoned below ground, in place. e. What is the current zoning classification of the site? The project corridor is located within the City of Tukwila owned street right -of- way. The "neighborhood" is currently zoned as LDR/MIC/H. f. What is the current comprehensive plan designation of the site? City street right -of -way g. If applicable, what is the current shoreline master program designation of the site? far big 4 km Lid tiro L r h. Has any part of the site been classified as an "environmentally sensitive" area? If so, specify. No i. Approximately how many people would reside or work in the completed project? N/A j. Approximately how many people would the completed project displace? None k. Proposed measures to avoid or reduce displacement impacts, if any: N/A 1. Proposed measures to ensure the proposal is compatible with existing and projected land uses and plans, if any: The City's planning department shall review and approve the lift stations site plan for compatibility with adjacent property. 9. Housing a. Approximately how many units would be provided, if any? Indicate whether high, middle, or low - income housing. None b. Approximately how many units, if any, would be eliminated? Indicate whether high, middle, or low - income housing. None c. Proposed measures to reduce or control housing impacts, if any: N/A 10. Aesthetics a. What is the tallest height of any proposed structure(s), not including antennas; what is the principal exterior building material(s) proposed? The equipment for the proposed lift station will be housed within a CMU block building. The building will be approximately 12 feet tall. All other facilities, except fire hydrants will be buried. The tallest structure is a fire hydrant that will be approximately 36 inches in height (from finished grade). b. What views in the immediate vicinity would be altered or obstructed? None tor .r two Ire boi IMO IWO Y., c. Proposed measures to reduce or control aesthetic impacts, if any: Minor landscaping will be provided, as required, to minimize the "soften" the visual impacts. 11. Light and Glare a. What type of light or glare will the proposal produce? What time of day would it mainly occur? A floodlight mounted on a 20' utility pole and a wall mounted floodlight on the lift station building will be provided and automatically activated during night time hours. b. Could light or glare from the finished project be a safety hazard or interfere with views? No c. What existing off -site sources of light or glare may affect your proposal? None d. Proposed measures to reduce or control light and glare impacts, if any: The light will only be activated during the night time hours. 12. Recreation a. What designated and informal recreational opportunities are in the immediate vicinity? Unknown. The "immediate" vicinity is a street corridor. b. Would the proposed project displace any existing recreational uses? If so, describe. No c. Proposed measures to reduce or control impacts on recreation, including recreation opportunities to be provided by the project or applicant, if any: N/A 13. Historic and Cultural Preservation a. Are there any places or objects listed on, or proposed for, national, state, or local preservation registers known to be on or next to the site? If so, generally describe. None b. Generally describe any landmarks or evidence of historic, archaeological, scientific, or cultural importance known to be on or next to the site. 10 kid c. How many parking spaces would the completed project have? How many would the project eliminate? No change in parking would occur. d. Will the proposal require any new roads or streets, or improvements to existing roads or streets, not including driveways? If so, generally describe (indicate whether public or private). Yes. The streets that are to be affected by the installation of the proposed utilities will be restored to a superior condition, i.e. overlay. e. Will the project use (or occur in the immediate vicinity of) water, rail, or air transportation? If so, generally describe. No None c. Proposed measures to reduce or control impacts, if any: None 14. Transportation a. Identify public streets and highways serving the site, and describe proposed access to the existing street system. Show on site plans, if any. The major roads that provide access to the project site include Interurban Avenue South and 42 Avenue South. The project is to be constructed within right -of- way corridors previously noted. The construction contract will require the contractor to submit and acquire City approval of a traffic control plan. b. Is site currently served by public transit? If not, what is the approximate distance to the nearest transit stop? Yes, public transit currently serves the proposed project corridor. f. How many vehicular trips per day would be generated by the completed project? If known, indicate when peak volumes would occur. None g. Proposed measures to reduce or control transportation impacts, if any: •rr A traffic control plan (construction phase) shall be completed as part of the contract documents. The plans shall be submitted and approved by the City. The construction process shall be completed in a timely manner to minimize disturbances to the traffic flow along the project corridor. 15. Public Services a. Would the project result in an increased need for public services (for example, fire protection, police protection, health care, schools, other)? If so, u generally describe. 11 Yes. Additional wastewater treatment is anticipated at the METRO facilities as dwellings are anticipated to connect to the new proposed facilities. b. Proposed measures to reduce or control direct impacts on public services, if any. The contract documents will include provisions for maintaining existing utility service and local access to businesses and residents. The Contractor shall be required to locate all existing utilities and coordinate all construction activities with all affected utility companies and residents during the construction phase. 16. Utilities a. Underline utilities currently available at the site: electricity, natural gas, water, refuse service, telephone, sanitary sewer, television cable, septic system, other. b. Describe the utilities that are proposed for the project, the utility providing the service, and the general construction activities on the site or in the immediate vicinity which might be needed. Utilities proposed for the project include the installation of new water mains and sanitary sewer lines to be owned and operated by the City. Additional electrical services will be installed for the lift station. C. SIGNATURE Signature: As underlined above. The above answers are true and complete to the best of my knowledge. I understand that the lead agency is relying on them to make its decision. Date Submitted: 12 PART 2: PUBLIC NOTICE MATERIALS IS 5. King County Assessor's Map See attached for the King County Assessor's Maps • :•• s. • 11.1 4.•••:•-•:.-- t ".' ;44 .1:22174 X. mar .."Lbo■wt7 111.01 Cr 11003121.2 DUWAMISH ORIN 411.. OS "NW ■•■•■•a. mannol RIVEg 1 Fl4 17711111,177 Imo tor lir • L4 0 0 0 Acil 0 6, ° so. AP x-r • J seelem..4 q 7u. MI I LW EA — 2; C=I • = i 644 • . azi .0.•Ilt .11■14.1 0 ' LW la ha MC M.= MEM.= JD tleattal • I. ra-.1.42ga NA TLC SI S ... 23 - 4 KING COUNTY ASSESSOR .... LLL r- 00 NIDItuter *use KG 1917.— 11-7. • N W I 0 • 23. 4 1 I I r r r C [ t 1 A,i11 t�� ,ii n,,l ,Ri �1'` o'� may, 5 .. : l: tea► � i• �� mac, .... Elielir Walt moor, ' . ..... ,d, ,. „0„....0 �,‘ ®.I II �T gwr a � j ..,, , /.. Q UWAMISH (,,...............,.a,.., )RIVER 4W 0.23.4 a QSIS[TCrc ee. �i2T7 l : e i y�.d _ r .1 `��:� ��� ���� r rx arscwmrrT1�E!f in r�= �rIELV ,• D 111111111111111111111111r 'real L ss »% !RYAN '4' �r r. f i II .23- w KING COUNTY DEPT. OF ASSESSMENTS IjljM ALLENITOWN DUWAMISH RIVER MAY COMNATI CINitlt 6. Mailing Labels The City Public works Department will submit the necessary mailing labels. 7. Public Notice Board This requirement have been waived by the Public Works Department. PART 3: PROPERTY INFORMATION la 8. Vicinity Map with Site Location See attached for the Vicinity Map. LJ Li Li tor to Mal MOM a Ws .!a.r v •0��� 9x000000 loam ale- ` == tow El b!" nn ..vr.o i tame ma .fr • ao0v Insm ' °® Mall MINIE11111111 Mill .1 remacal • Oii bo a ` \ OCij !CS � 0\ O a a ink Oi I FEN. 1 01111iIiinagar VA1 or � Is'DIENO a ° o vlD _ a imima o •1 =a;,1 Flo O 0E p an a Od Gnaw ooerzed CITY OF TUKWILA ALLENTOWN WATER AND SEWER IMPROVEMENT PROJECT -PHASE 2 PROJECT NO. 95 -WTO1 and 95 -SW02 LOCATION MAP NOT TO SCALE mminn •r•m PROJECT LOCATION Gray 8z Osborne, Ino. CONSULTING ENGINEERS L 1,500 3,000 i Feet CITY OF TUKWILA ALLENTOWN WATER & SEWER PROJECT AERIAL MAP O € y Sr Osborne, Inc. CONSULTING ENGINEERS 0 Land Use Map See attached for the Land Use Map d L. L. L. L.. 16-.1 L.R. KING Alif COUNTY Comprehensive Plan Designations LDR-Low Density Residential MDR-Me*urn Density Resident HDR-High Density Residential 0-0tfice MUO-Mtced Use Office RCC-Residential Commercial Center NCC-geighborhood Committal Center RC-Regicoat Commercial RCM-Regional Cornmerdal Mixed Use TUC-Tukwila Urban Center CAI-Commercial Light Industrial TVS-Tukwita VaNey South 1.1-Upt industrial HI-Heavy Industrial MICknufactiring industrial Center/11p Industrial MICAI-Mantriacturing Industrial Center/Heavy Industrial Overlays and Sub Areas SEATTLE SEATAC Tukwila City Limits t mot Public Recreation Overlay Shoreline Overlay (Approx. 2arr each side al river) Manufactrifing strial Center Boundary Tuloda South Master Plan Area Tukwila Urban Center Potential Annexation Area 4 .: SEATTLE • / ••••••• t stop i t 4 'to; ti nftb a PO; ftprentem tali desiptcas *VA Cti Card 12105, KENT CD w CC MST 10. Title Report This project is being constructed within the City's right -of -way. Therefore, no title report needs to be submitted. IS 11. Lot Lines Lot lines and right -of -way lines have been shown on the Plans provided with Item #13. These lines are approximate and are based on the best available information. PART 4: PROJECT DESCRIPTION AND ANALYSIS VI The City of Tukwila intends to provide new sanitary sewer facilities, as well as replacing existing water mains within portions of the "Allentown" area of the City. The project includes construction of approximately 9,600 lineal feet of 10- inch, 8 -inch and 6 -inch water mains and related auxiliary items, to include fire hydrants, valves, services, etc. within the City owned right -of -way, commonly known as 42 Avenue South, South 115 Street, 40 Avenue South 44 Place South, South 122 Street, South 124 Street, South 125 Street, 50 Place South, 51 Place South, 49 Avenue South and 50 Avenue South. The sanitary system will consist of nearly 11,000 lineal feet of 8 -inch gravity mains together with associated side sewer stubs, manholes and connections also located in the above noted streets. A lift station, located at the intersection of South 122nd Street and 51 Place South, will be installed to pump the sewer into existing sanitary facilities. New cement concrete sidewalks, curb and gutter and storm drainage improvement will be installed in and along 42 Avenue South. Work will also include surface restoration (in kind). The project is located in its entirety in the corporate limits of the City of Tukwila, King County, Washington within Section 10 and 11, Township 23N, Range 4E. More specifically, in the area of the City more commonly known as "Allentown ". This area is located west of I- 5Burlington Northern Railroad right -of -way, east and north of the Duwamish River. Please reference the attached exhibit. a a IND is Is 12. Written Discussion PART 5: SITE PLANS 13. Signed Plans See attached for the original Plan set (signed). f c r r I T r r r r EXISTING ///////7 W G S —� F—■• >— D —< X X X 0 PROPOSED DESCRIPTION 1•- .S —w — g - D 0 • ■ • ASPHALT PAVEMENT GRAVET. SURFACING CONCRETE SURFACING CONCRETE SIDEWALK RIGHT -OF -WAY UNE CENTERUNE OF RIGHT -OF -WAY PROPERTY LINE PERMANENT EASEMENT LINE BURIED ELECTRICAL BURIED TELEPHONE WATER MAIN (SIZE AS NOTED) GAS MAIN SANITARY SEWER STORM DRAIN (SIZE AS NOTED) SANITARY SEWER FORCE MAIN (SIZE & TYPE AS NOTED) DITCH >— — —•< CULVERT FENCE (TYPE AS NOTED) FENCE (WITH GATE) POWER VAULT TELEPHONE VAULT TELEPHONE MANHOLE SEWAGE LIFT STATION MANHOLE POWER / TELEPHONE / GUY POLE LUMINAIRE DIRT SURFACING SYMBOL LEGEND TYPE I CATCH BASIN OR CURB INLET TYPE 2 CATCH BASIN POLE WITH GUY WIRE EXISTING PROPOSED ki A 3 0 • • 0 • • TV GE xxxx —9— AVE AC BLK BO CTR CAP CB CI I CMP CO CONC CONTR CY CL CF DI DIA DIM DWGS E EA EL AVENUE ASBESTOS CEMENT PIPE BLOCK BLOW OFF CENTER CORRUGATED ALUMINUM PIPE CATCH BASIN CAST IRON CENTER LINE CLEARANCE CORRUGATED METAL PIPE CLEANOUT CONCRETE CONTRACTOR CUBIC YARD CLASS CUBIC FEET DUCTILE IRON DIAMETER DIMENSION DRAWING(S) EAST EACH ELEVATION ABBREVIATIONS EL ELBOW ELEC ELECTRICAL EXIST EXISTING FIN FINISHED FL FLANGE FT FEET F FORCE MAIN GA GAUGE GALV GALVANIZED GALVANIZED IRON CV GATE VALVE ID INSIDE DIAMETER IE INVERT ELEVATION IN INCH L LENGTH LB POUND LF LINEAR FEET MAX MAXIMUM MIN MINIMUM MJ MECHANICAL JOINT MISC MISCELLANEOUS N NORTH NO NUMBER N1S NOT TO SCALE OC PP PE PEW PVC PVMT OTT RCP RR R R/W SSMH S SO SOUTH SCH SCHEDULE SF SQUARE FEET SHT SHEET SPECS SPECIFICATIONS STA STATION TEL TYP W ON CENTER POWER POLE PLAN END PERFORATED POLYVINYL CHLORIDE PAVEMENT QUANTITY REINFORCED CONCRETE PIPE RAILROAD RADIUS RIGHT -OF -WAY SANITARY SEWER MANHOLE SLOPE TELEPHONE TYPICAL WEST WI TH DESCRIPTION YARD LIGHT JUNCTION BOX (AS NOTED) GATE VALVE WATER METER FIRE HYDRANT ASSEMBLY REDUCER THRUST BLOCK CAP/PLUG BLOW -OFF (TEMPORARY OR PERMANENT. AS SPECIFIED) MAIL BOX (NOTED) SIGN RP RAP EMBANKMENT TREE (CONIFER) TREE (DECIDUOUS) SHRUBS BUILDINGS ROCK WALL MONUMENT BORING AND TEST / POT HOLE LOCATION SURVEY ANGLE POINT / SURVEY CONTROL POINT PROPERTY OWNERSHIP TIE GROUND ELEVATION 0 BUILDING (ADDRESS) BASEMENT ELEVATION (PROPERTY ADDRESS) A 'MEM Er =MITA aSii" 4 VICINITY MAP NOT TO SCALE i ALLENTOWN PROJECT LOCATION / CORPORATE UNITS ALLENTOWN SEWAGE LIFT STATION SHEET M -1 ��Alfrig" ®3 el III a .1 lit °CD 6-4 Iba 01 4Si3L:Z1!�9® • 3ks 0 ® m ffi t (C) LOCATION MAP �� NOT TO SCALE X e DATUM REFERENCE NOTES VERTICAL: 1929 USC & CS (ADJUSTED 1947) + 100 FEET HORIZONTAL: WASHINGTON COORDINATE SYSTEM. NORTH ZONE GENERAL NOTES: 0 THE CONTRACTOR SHALL BE RESPONSIBLE TO CONTACT AND COORDINATE WITH ALL UTTUTY COMPANIES IN ORDER TO ASSURE THAT AU. LINES. PIPES. POLES AND OTHER APPURTENANCES ARE PROPERLY LOCATED. SECURED. AND /OR PROTECTED. BURIED UTILITIES (WHERE KNOWN) ARE SHOWN IN THEIR APPROXIMATE LOCATION. THE CONTRACTOR SHALL HAVE UTILITIES VERIFIED ON THE GROUND PRIOR TO ANY CONSTRUCTION. NOTIFY THE UNDERGROUND UTIUTIES LOCATE CENTER: 1- BOO -424 -5555. O ON -SITE EROSION AND SEDIMENT CONTROL MEASURES ARE REQUIRED AND SHALL BE THE RESPONSIBIUTY OF THE CONTRACTOR. ID THE CONTRACTOR SHALL HAVE A COPY OF THESE PLANS. ANY ADDENDA. CHANCE ORDERS. AND THE CONTRACT SPECIFICATIONS ON THE JOB SITE WHENEVER CONSTRUCTION IS IN PROGRESS. O THE CONTRACTOR SHALL PROMPTLY NOTIFY THE ENGINEER IN THE EVENT OR DISCOVERY OF UNSUITABLE SOILS OR HIGH GROUND WATER CONDITIONS OR DISCREPANOES FROM THE PLANS. O THE CONTRACTOR SHALL MAINTAN A CLEAN LEGIBLE SET OF 'RECORD DRAWINGS AND PROVIDE A SET TO THE OWNER PRIOR TO DEMOBILIZATION OF THE SITE. SEE SPECIFICATIONS. O I UTILITIES IN OLUDINC A 20' HIGH PRESSURE GAS MAIN. 2 - 12 METRO FORCE SLUDGE MAINS (ABANDONED) 48EXSTING ' METRO TRUNK SEWER MAN. AND UTILITY POLES ARE LOCATED WITHIN CLOSE PROXIMITY TO THE NEW UTILITIES THE CONTRACTOR SHALL CONTACT THE VARIOUS UTILITY COMPANIES TO COORDINATE CROSSINGS TO MINIMIZE THE POTENTIAL UTILITY CONFLICTS. O7 DEPTH OF THE SIX (6) INCH SANITARY SIDE SEWER PPE SHALL BE AT LEAST FIVE (5) FEET AT THE ROW/PROPERTY LINE. (WHERE FEASIBLE). CONTRACTOR SHALL INSTALL A CLEANOUT AND A 6' WATERTIGHT PLUG (SEE DETAIL - SHEET 40) AT THE RIGHT OF WAY LINE THE ACTUAL LOCATION OF THE 6' SIDE SEWER LATERALS SHOWN HEREIN ARE FOR ILLUSTRATIVE PURPOSES ONLY AND SHALL BE FIELD VERIFIED. SIDE SEWER LOCATIONS SHALL BE MODIFIED ACCORDING TO THE EXISTING BUILDING PLUMBING LOCATIONS) AND COORDINATES WITH THE PROPERTY OWNERS. O ALL FENCES. SIGNS, PAPER BOXES. ETC. THAT ARE REMOVED OR DISTURBED AS A RESULT OF CONSTRUCTION SHALL BE REPLACED IN THEIR ORIGINAL LOCATION UNLESS OTHERWISE SPECIFIED ON THE PLANS. ALL MAIL BOXES SHALL BE TEMPORARILY LOCATED TO PROVIDE SAFE ACCESS AND CONTINUOUS SERVICE. CONTACT THE LOCAL POSTMASTER FOR REINSTALLATION LOCATION OF MAILBOXES. O THE CONTRACTOR SHALL TAKE AU. STEPS NECESSARY TO ENSURE THAT THE EXISTING FACILITIES REMAIN FULLY OPERATIONAL DURING AU. STAGES OF CONSTRUCTION. OVERFLOWS OR SURCHARGES OF UNTREATED SEWAGE WILL NOT BE PERMITTED. THE CONTRACTOR SHALL BE RESPONSIBLE FOR MAKING ALL ARRANGEMENTS FOR TEMPORARY BYPASS PUMPING INCLUDING TEMPORARY POWER SERVICE AND CONTROLS. 10 A PRE - CONSTRUCTION CONFERENCE SHALL BE HELD PRIOR TO THE START OF CONSTRUCTION. SHEET NO. INDEX DESCRIPTION 1 VICINITY d LOCATION MAPS. ABBREVIATIONS. GENERAL NOTES. SYMBOL LEGEND AND INDEX 2 -36 PLAN & PROFILE SHEETS 37 WATER IMPROVEMENTS ALONG 40TH AVE. SOUTH 38 -44 SEWERmATER/MISCELLANEOUS DETAILS 14-1 ALLENTOWN SEWAGE LIFT STATION SITE PLAN. SECTION AND SCHEDULES M -2 SEWAGE LIFT STATION DETAILS S - - S -3 STRUCTURAL DRAWINGS H-1 HVAC DRAWING E -1 - E -7 ELECTRICAL DRAWINGS irt `�1 `it/ c r 0 0 4 0 0 0 z SHEET: 1 OF: 44 JOB NO.: 00539\N- PHASE2 DWG: LEGEND 20' 10' 0 I `1 Gray & Osborne, Inc. SEE SHEET 11 a I ; << � } a } ,,, .., w I d3M3S .9 — !l 91 4603 i 4615 • + + , I 73 / 4705 40 of `Clpu x I- • Y GL :•, '; :�;' i.':` : 'O �•t,�:� ...:,•.: © A or 30vNNO 41 : ,,,,, / //, !/- GARAGE . 0 '' r• H Ee ' j � HE 2 T ©m / SIDE AREASMOWN { N+EREt AC fl AAL LOA)* SINJAtL aN 9 A as. •, :eE:l?ETERIAMED IN.ttiE F�ELO. \ \. w; _ > � , //� . _ 01 CAUTION: F TO W SPECIFICATIONS INSTALL 2 O PIPE W 3O DO RITY HAS O EXISTING CO3ISTRUCJINN NOTES' CONSTRUCT SOUTH 125TH STREET N� �. _ • M• M" ; - i:'��?ti: ' Y Nj- . -' "mac 4 i t\ < s 0 O _ • ) i� J. � ^ � . �. 1 r�. ,.� _, .. xy; ` - "' 4 : ' _..: -,.. 4 +r POTENTIAL UTILITY CONFLICT. CDNTR POTHOLE) EXACT LOCATION AND DEPTH SANG TY SEE ORDER OF WORK IN THE VERIFY SEWER NEW R PVC SIDE SEWER FROM NEW 8' TO THE R - O - W LINE SEE DETAIL SHEET 40. NOT MAKE THIS CONNECTION UNTIL A SUCCESSFUL_ AND PRESSURE TEST OF THE NEW SYSTEM BEEN WITNESSED BY THE CITY. WATER MAIN SHALL REMAIN IN SERVICE UNTIL PLATY PTY AND PRESSURE TEST OF THE NEW HAS BEEN 'MTNESSED BY THE OTY, AND THE WATER SERVICES HAVE BEEN TRANSFERED TO NEw SKTEM. THE EXISTING SKTEM SHALL 1IiEN ABANDONED IN PUKE. SHALL FURMSH AND INSTALL NEW FIRE ASSEMBLY PER DETAIL SHEET 41. EXISTING SIDEWALK AT THE ADJACENT EXPANSION REPLACE SIDEWALKS PER THE SPECIFICATIONS EXISTING WATER SERVICE PER DETAIL 42. SHALL ADJUST EXISTING MANHOLE' BASINS, WATER METERS, AND VALVE BOxES TO GRADE. I DATE: FEB. 2004 I I Y5'3:NMVa0I I'H'W'P :03x33HOI I 'On :03A0addY I -- — .:.: .'�a::r a �\. .ah � ,....:; 'IO .: :'*�•' ^; r> . �: d a A.. a .:z. :. a r Tl �'i€ . 1�.. w � 'r.� ht � Y x> .z e : \� =- \ - z '•x. '4:. �^ \ :h, 7 c 'cam Y B,<lk , a . - t. _, .. j.: ,k,r.s r x ' t o r YY a T ..�\ � . rk S@ �'' � ..aY i�\� � .3w. �. °� � � '€• 3 ,?.1 >. . rv' ."`+:.. � •, 4 W <. � . ^t .. • '- \ ��a`.2. 4'� '� \, .{ : �3B.Nr � o W a c ` , y y � a ,,,, R ' i " . :- r - " a —W ::.._': , z -- 7 ,,,,.,� : .:• :. - •;�:" '; =':'. ,.- �� `'•'�••• , , ' j : .', - , .: - I?C- `� �— � i •"�_ -•� "— - - '• .�.;- �� •" Y.`:' +. OddY - ;'' — � — ® v •j+C — A SUCCESSFUL „ _ V © J I ® . i`. Z — + �, . r ~ . --= � ` �•`,,,_.- 0�� SYSTEM E XISTING i 31Ya 0 j � I lr:•- < ( ' t . x RED THE I BE � I ® O CONTRACTOR HYDRAN © -- -,^. n It N0ISIA3a c el = ' z F 1 a S - L6 +6 Yl r r 0 f t [[R ,'• ♦ .< ,, ' c 4607 i ..s. : . r ` �1 o - a / �; _ m'” N o o p � ,. ' -• a_ � A . W ' < , , - o - '^ N ' 4621 0 o I N M71YM 4627 i / / / / ,. / / / ��• ''' •� @ REMOVE --- O JOINT. 07 RECONNECT SHEET : - ;: . '•5 - t ^- , 4609 , n N w / / , r 4613 ". I m 1 2...-./ i � ... �'^'_- L i �,, I / / / � ® CONTRACTOR — -- •"'' -� O CATCH 125 120 115 110 105 100 95 .- W Z in ......... .... rP�.c�.trf.l4lid 11 6: 6 L �, ..� ._. ..:. ^ ..• • • Ex „ I:NG :GROUND 1� i:. �.. :. <:..... . .: .a .....:.i . . , .6 v. in 1/1 . _. _ ... • 4 62} . .. _ .- p CONNECT NEW 8' SEWER PIPE MANHOLE. CONTRACTOR SHALL RESIST LATERAL LOADING. RECHANNEL 10 CONTRACTOR SHALL CONNECT EXISTING SEWER PIPE. USE FERNCO I1 REMOVE AND REINSTALL 4GN• REQUIRED. SEE SPECIFICATIONS. .. • • TO EXISTING STABILIZE MANHO NEW 8' SEWER ADAPTOR FENCE OR SA MANHOLE TO PPE TO AS REQUIRED. MULBOx AS . 110 A 'cfr- 'oN i�.i.' . i.�.' .. v .. .. �. e4607 . : - � . Y:ZC''A ' +.1(44t•E \8S'C1 400 +.4 CCCr:C li«� �'�t'TS \..', .. S ter . . 203 CE• - -s604 C.46}} E ' ....� .' -46}5 (£...4673 .__..._. . .... � <62;T GE GE •l705 LF• -• SEIAER PIPE ... .. .. . CITY OF TUKWILA KING COUNTY WASHINGTON ALLENTOWN WATER AND SEWER SYSTEM IMPROVEMENTS PHASE II PLAN AND PROFILE F. : ' R: PPE: 8 SEWE E :8� SEWER: PIPE LE .4 : ;.: _« ' - �. .� .. . ... _ _ . . __. ..�..�. _.... - .... S -0:00 _.. ......... .:.. 0.004- ........ . ......... 5 ......... ........ ......... ......... ........ ......... ...... .. ......... ......... ......... ......... ..... ....... . . 0 OOt • ... 4t .. NUT1j -ALL; U7iLIYIES NOf SHOWN CQ itiNCIOUS `a . ._.. NN • PLAN •VIE• FOR • CLARITY • 4 • SEE • • • CROSS SECTION :.A-A AND PLAN •NEW • . ........ 10 +00 11 +00 12 +00 13 +00 ~ O, K R1. Nn I I ~ n + Z q 2 4 to 1- Vf In o N Z W 3 GJ • ,m • 03 IA W I 11 , �n n •n 1 ¢nm • g x00 o 9 o + Z N a■ X I � 4 W W N N ° o N . 3 W • •• j . 0 �a 2 W 1 1 V .. �. rE .on ri o o Ff. < W W f r C r r f r r r r r r r SSMH No. 4 125 - 02 STA. 16 +00 -9' LT b J a O .•• O Cl! ..... . ••• J o '' 1 • ••• • • • •. • ... ..... .... I sHEEr j a i • .... •. t• { -• i N N o ON •••••• • ••••••. . .. � •••••••• ........ .........� .... .... ...... •. ........ .......• O O O O O O 98 G ....... 0 ......... A' Vt 2 A >g T t rA• � 1 Z C CZ A Jj trt Vl a N C So p > p R z tp a 0 m A c =. N 2 2 4. " z • g AAA w r TI Z Z n C x y ° n , - -.-I � n . ZZZ "f�l -• 1 la 0 0 my to .1 ;46 IRA a � r > � 1;2 VI > p ) gig ! . 1 MMM Z 20-30 x 1 " e Pc b g .6 * ! * i g ir^gi m fi x ` • ° LL o N g �� tn k k i '�t n `� rY s c N Z t ri m'-'.g a x g E r N � p r' fit A y '� P Z 9 I^ �Z �/- I o s �� 2 F S � N iVIC � , S3 go. Pe 6, � A ,,,g R AztqPi2 _ i1 f 2 g ^per ; Z it j;g N A "g c zom 71' Tfz•1 Z „�' Z • g g -. ' - ..• • etVoi =‘;11-,.. • gu • IN. KAN • VIEW FOR- C CROSS • SECTION :A-A ......... . ......... 1 # ..... ........ • O IA ¢ t Cf p mz r l X • .yt l . y V o � A ; et 1 2A Ari f•1 A Z 9 �A 2 1Q A to t ° 1 � g 2 * r� r�l SHEET 16 - - ......... = 1 ••••••. r........I I t G . •...... ........ I / / •••• ..•• S r \ k \ I�I • j ',k t '^•; .. A 0 ........ •••••••• ........ :::' :: ••• {••••••••• •••.•••• r•r••••• { •• ........ ••••••.•• ......... {......... : •• ;.•• .: I :.. II {...........{ 1 • { { • .. • A : .. .. . •I TER AIN YSC, I { ........ I I { , ` am ;`♦ LF 400 - R P . Y't ;'n` . • I° ty e '• GARAGE I hall : i ttt IO .•.•..• ........I ... •... 1 t d ( ' i V ` 1 ........ ....... I i i s 1 {7 ..... y *� .. 1 r .. • i ri t r. A Q 7' / • r 280 LF - 8 WATER MAIN i f I 1 . } f„t �a ; e � ily..�:4:: •.5�, 1 r ,{ ! \� ^. , ..t • �w.Y . } 'y...�1. I 3 I { 4 : •. .. •t ✓ ...... • • .. - rrrr•••g ....... •I ........I ••••r•• . • 4- 125 -02 SSMN No. ` S �) ,. x: :. N a IL APPROX. RIM El.. - 120.00 LE.. 107.34 - 9' w I.E.. 107,44 - 6. E ••••••••.t • I .r. • ....... n i ........1 € i I. ••••••. >S ...... ••.••r1 STA. 16 +00 - 2• RT • { � � I i 11 . 1I I; / 1 1 { i : { • t • � :I •• r••••• . • .:: { £ " 30 lF 8 SEWER PIPE ', •' . i / j ........ ••••••.• sue I STA. 16 +98 4 I i I FURNISH AND INSTALL .... 1 ..... •••••. .P. .. ...... . ..... r•r••••. WI tN I): B" ■ B' WATER MAIN /J � � I / ' S t ix � Tt �� 1•f 0 ,. t o • n i0 a to ." ...... 9 E6 S�iF io r is o I I T:17 N a o • N a SEE SHEET 17 o I DWG: PLAN15 SHEET: 16 OF: 44 ,OB NO.:00539 \ N-FHASE2 CITY OF TUKWILA KING COUNTY wAS++ncrK>M ALLENTOWN WATER AND SEWER SYSTEM IMPROVEMENTS PHASE II PLAN AND PROFILE / DATE: FEB. 2004 3A y �. O�borxie� Inc. r o,`t 1 -14:;.• V•5 /IA w .'a t iet i {.;� - y Zt � • • 1 ♦ � � � b 4 /0rt '. A g /01161. � Cr- SCALE: 1 : V D RA WN: E.S.T• CHECKED: J.IAH. CONSULTING ENGINEERS 701 DEXTER SEATTLE. * * IGT 1 0109 NORTH 206) 2 -0660 APPROVED: T.J.0. clan 5-111-203S ( I OfMC4 S-21-10:4 J Nw REVISION DATE APPD 2.10:111101 $111111111111111 20' 10' 0 E u Gray & Osborne, Inc. • 4821 / ! ±',= 4919 Q .C**N N\\'` A • dD Ill W I M • W.� pA 1 / ©® / , • Y / 4915 i - /� • a — =� �� /! ©��; -� GARAGE © tt �� ,f /,f, / ////////////////, / j / / SHED / \ A T RHOYRi HEREON. 90E S FOR ILLUSTRATIVE PURPO C sY 11+E ACTUAL LOCATIONS SHAEL'VARYAND SHALE ib=flE%6�r > ..... - BE oETuNEO.NTHE r ,' S TH 126TH STREET co CONSTRUCTION NOTES L ,,.... uB J _ _ ;; , > ? • ` . L :. :: >..;i:C': _ . - =� �� \ _� :'� ^ t CAUTION: POTENTIAL UTILITY CONFLICT. CONTRACTOR W O EXACT LOCATION W TO VERIFY POIHOL E) E T L AND DEPTH EXISTING UTILITY. E ORDER OF WORK IN 1 2 OF E U SE SPECIFICATIONS W O INSTALL NEW 6' PVC SIDE SEWER FROM NEW 8' SEWER PIPE TO THE R -O -W LINE. SEE DETAIL SHEET 40. 3O DO NOT MAKE THIS CONNECTION UNTIL A SUCCESSFUL PU RITY AND PRESSURE TEST NEW SYSTEM ND RESISU E TES OF THE E W SYSTE HAS BEEN WITNESSED BY THE CITY. 4 EXISTING WATER MAIN SHALL REMAIN IN SERVICE UNTIL A SUCCESSFUL PURITY AND PRESSURE TEST OF THE NEW SYSTEM HAS BEEN WITNESSED BY THE CITY. AND THE EXISTING WATER SERVICES HAVE BEEN TRANSFERED TO THE NEW SYSTEM. THE EXISTIN G SYSTEM SHALL THEN BE ABANDONED IN PLACE O CONTRACTOR SHALL FURNISH AND INSTALL NEW FIRE HYDRANT ASSEMBLY PER DETAIL SHEET 41. O REMOVE EXISTING SIDEWALK AT THE ADJACENT EXPANSION JOINT. REPLACE SIDEWALKS PER THE SPECIFICATIONS. RECONNECT EXISTING WATER SERVICE PER DETAIL SHEET E 42. 8O CONTRACTOR SHALL ADJUST EXISTING MANHOLES CATCH BASINS, WATER METERS AND VALVE BOXES TO GRADE. ® CONNECT NEW 8' SEWER PIPE TO EXISTING SANITARY ,. . __.. ;� •A..:.s „�, air <>. < ... ,. �^... °.v i ., vR ,< 'L'e" + ,. -.: \ . 4. ,. .. 5 .. ...e .a i ,...: ... <�-. �. .1.. .. az . ,< .. 'c � of Wit.,. .,,. %llffi_ "dTil!➢ welmatitiq tir .:'- - ��r.:....;..i- : .;._.- ..•cry t�� .:.� a .�a '� Y X4 .:ic I IVOZ 1 134:31r0I I H ,OZ ,1 '31VOS I I DRAWN: E.S.T. I I Inv :0343H3I I 'or :03AOLIddYI .— �.�.� .... . . mac . . a . <I x a.., .�. h a..e'�..:^. ...: ..oA .k v. .... � .... .<. : ;: x. fs'. ... ': r�L.. R �. ,.: r.... :. ...+s... 5. �? ?Y .... �.a. x2 �. '3 .1. <l' � ...<�i. >.,.„ - ;..... :. - � > �k . _.. � . � : ,..�... :..�.. .. ; . <. .. . '. �a Y..: >_.... t>'• -.. e. a l. �., .. `. \. '. ...... Y,<..:.� \: ...... x..� v..'.u. Y .,^� �'. �� ..t: .b .. -yA ,.<.. • :.a .d. �. . ..'J.. .. ..a \' � .. .: .. _ a �.x . .� �: a. k.. c .z z a:.. a A t .,. : -K •. r 3. 3a?Sa, S :.� s? .� : .... ; S.v::�x ...Ke :: K.. , Y .. �.u. +... � ., _-e. .x ; . k: .. ... ._... ,v t.... .l � .: � U... ,. � �.:.. ,. a �r i.,.> •r... y .': 1 �: 'S2 ::� �� tR .;b . -?�..A x`s' w _ r <:: �. .��s,ct ! .._ ,: � v. � tea, : € ... .Ley.. <$ ..Y... . L . � R ::c .. � AY V a Sa. �`?. c... Ec:..� :.. .0 .: S.A.? }":. � �. C.. +� ...., t . ,t � : : .�.. ... >. ..:. .: . `1 aa=.. a .tea. �l«`.i... •.a "` i _ A. •. - ..�W L am : - '';j• • ': � n, Z tti..�. -; T-f` �; ,. a. fy I `i^ 1 . %/ C.., 5 . �- _ •_c,: _ ^` , '- - : + 9 ' ;i ?• ' ; " r ' .Z•- . fir; .. y . �i. t - .y., r;r?.�: :: %:, �r ?:d " + ^'� - I `� •,,` \ \ � ' k �” r:,,,, Y /+� -.. W g.. .. - • .+�.. . ° ` x `" y1 .,..>M '^s-" —' W i . * + -•• - - - fr � t t -f . - ro: ' “1 o p u r ., c — — — / V i Z + < F a I"I-_ i ' = ?4 1 25 1250 W m .. co \ CC ". r ion / OddY ` : ` io . \ < I n 4S o o In 0 `1 f� p . �'� • ' ''''\ • . - O* ''.. ''' — , \ � • \\ :-., h 11:\X ©STA 1 2 ��\ r � � \ \ "'" \ — ' f ;: : ® o f o z 3 r In © i'' - "' ' •� , ii .. L x . = ' > r - - $ _ : , . ?,_;.Q;..S Ls . � . y;f w - • i • i %�' ''�'': IA - •.• ' f © z u cc < n I I I i h © n p a a v "I 31vO NOIStn]a 125 120 115 110 105 100 9 5 • i � \ ,� . �� \ _ _ .. » _.__..._. .. .» `\ ... � i ':` _ _._....._._. . _...... E . .... . ......... : . GROUND ' ' 5 4: .... »...._ . .. ..__..._.. .. .. » ».. ». »._ ..... » ..._ \ 125O1 / ..... _ ...._ .... .. ._» _. » . ..» Ce � us ur MANHOLE. CONTRACTOR RESIST LATERAL t0 CONTRACTOR SHALL EXISTING SEWER It REMOVE AND REINSTALL REQUIRED. SEE SPECIFICATIONS. _... ... .. SHALL LOADING. RECHANNEL CONNECT PIPE. USE FERNCO SIGN. STABILIZE MANHOLE TO MANHOLE NEW 8' SEWER PIPE TO ADAPTOR AS REOUIRED. FENCE OR MAILBOX AS . 96 I'ON 'IYNO / i _.,g, .M4014, ♦ •uq ♦ • •a•. • A, vi 0 L "'y � '� 9 Yr xs 1, °AD •r TA' .... . . .... 8• t4ER PIPE ....... CITY OF TUKWILA KING COUNTY WASHINGTON ALLENTOWN WATER AND SEWER SYSTEM IMPROVEMENTS PHASE II PLAN AND PROFILE W i4. . • 00 if _._ _. _ $•SEWER PIPE. 3� {F �. W .1:064 z,a ;.., .. ..... ........ _T. .... .. .. ..... ........ ........ :: .. Nom-AU; UTILITIES. NOT - SHOWN • CONTINUOUS N- PLAN- VIEW FOR. CLARITY. : SEE.... CROSS SECTION EA -A• AND. PLAN • VIEW ....... .... j� .: .• .... • �S •'_.- .. . 18 +00 19 +00 20 +00 21+00 O I I .o o + • ze. 14 lo 1- n 6 I ; W ( ; LJ I } i � o �� a . mm X .O a • I a L,I w I SHEET: �7 OF: 44 J08 NO.: 00539 \N- PHASE2 DWG: PLANI5 XXV r r 20 T 0' 0 f u I Gray 8z Osborne, Ir. !32 tI k o b= re i < + r r yy < 12238 '�a 3 { n3 ' �7 I ; - • - - --- _ - ��_ ` 12 44 i O Vi i$ i n �' +=.� °� 2 '. ±� ' 7.258 I ' . - �5• t\ = 3 1_ j � � Ob o � N 13 f I - I I . e Z ! 10 11 1- fl E ,i c � ?f a I ; f � ji4 ---� t— - C I (� I f f 1 N •' ::: i I . 4 i , i r r t T I - .. 00 1 � ©0 7 7 O - , .. ~ ' 1 t ` •: , t 2 6 �' f 7 • 1 j I I g I Ii. 0 1. W I I a JI.I11STRATIVE PURRPOSES OlitY A CTUALALOCAITWPIS5HALL VARY' SHAL �,. . , , �ABE4DETiRMN D NN:THE f1ELI - _ _ _ o2 _ 1 L CONSTRUCTION NOTES@ �� _ II W J i' ":1 CAUTION: POTENTIAL CONFLICT. CONTRACTOR ° � YI -' UTILITY 1 � � ° , x ,` ..,."'� I TO VERIFY (POTHOLE) EXACT LOCATION AND t • e.A•� ` ° ' `a a ` ° a * 'f I • OF EXISTING UTILITY. SEE ORDER OF WORK IN THE EP TH SPECCADONS. ei 0'. IF I DATE: FEB. 2004 I I A .S 0 .1 :31YO5 I H I DRAWN: E.S.T. I I ion' :a3)33H3 I I 'Or1 :a3A0HddY I - � -� �"� � ;,� x y a.:. m s sx �. �. ' ?'� s t . ` c� °.� x �. a � T 4 `t °' .. F a `• �'�'* 'v z. "?� " '°`�:- ¢ s ":. W d e x d a x a . : F x ? . :�� , , \ ... " -: E a :I ., .,:a,.: n s °; >� .. . ;, , :, x „ ax 1 2 INSTALL NEW 6 PVC SIDE SEWER FROM NEW 8 SEWER I k I1 _ _ ` _ 10 f O PIPE TO THE R -O -W LINE. SEE DETAIL SHEET AD, I T,i Ya. "mat". ., .. .. ...r< »�.. ...r. .., ... -..� i..!�.. � ',`. -",m,. .-`. 4s . -- ___ � �" . -. a:�. s e * �...::.� �' . =Y; 8,,:.° °`3 ° '� ., .. - z *a; v � L:��� 0 DO NOT MAKE TNNS CONNECTION UNTO A SUCCESSFUL __ a '�'� -------- ... - -- ------ �_ AlllmPww■ PURITY AND PRESSURE TEST OF THE NEW SYSTEM HAS BEEN WITNESSED BY THE CITY. O EXISTING WATER MAIN SHALL REMAIN IN SERVICE UH11L _ Ill -- .- / W • _ W N • ■ 0 ° ` 4). ____ --- .--- ---" - add'I L A N 31Ya _.^ . j .. - _- ` -- �• -- --- -� THE NEW SYSTEM THE EXISTING BE ABANDONED IN PLACE. 0y CONTRACTOR SHALL FURNISH AND INSTALL NEW nRE HYDRANT ASSEMBLY PER DETAIL SHEET 41. O REMOVE EXISTING SIDEWALK AT THE ADJACENT EXPANSION JOINT, REPLACE SIDEWALKS PER THE SPECIFICATIONS 0 RECONNECT EXISTING WATER SERVICE PER DETAIL �` �. _;;__ _�_•��"'- -- _ "' - - - - _ �" --- -�_ N` o \\�~ -_= - _--- -�� .. -= -� `=— - - - =__ � -- " NOISIA3N �"'`•� !~ ---- "- "'- ----- .. -- - _- .-- _---' ---- -- -_ ____ -. _- ��o--- -__--- ___ ---- - - - -=� \ -� --- -• - ,. � ,•._._. _-�__ 1 J -- --�.`_ ,_- - .r••�'` _- -'_-- _- _- . -----' o —_ _ l h �� - " "' —+ ✓ • • - °: - - I ,., - .-- ��- -1P0 _Y I : 125 120 115 110 105 100 95 ' • / . ef; IiYl 400 l:/ dY/ is J.r.'�1s3'laL.t .cYlhlc.�n ln..ri .. -. LF•- 8 SEWER II N •••• d N 5 � .. . 6..l.. t�, » ».. _.. c:: 7. h C n Cn;r ln:. �!ln�'Xn� .' /.n�!fn�!fAY.r = z VI . D UWAMISH RIVER - VI • ••• EXIST! BG•GROUND ...... . ... ... .Y'T/'5Yr?JWWYi'YY?ri?Yr?YJ'Y _ _ ' TG- 8' SEWER Z z v V., v . VI © CONTRACTOR SHALL BASINS. WATER O CONNECT NEW MANHOLE. CONTRACTOR RESIST LATERAL 10 CONTRACTOR SHALL EXISTING SEWER Il REMOVE AND REINSTALL REOUIRED. SEE -1S.Y lvAY r I . .. • ADJUST METERS AND B SEWER PIPE SHALL LOADING. RECHANNEL CONNECT PIPE. USE FERNCO SIGN, SPECP1CATIONS. EXISTING MANHOLES. VALVE BOXES TO EXISTING STABILIZE MANHOLE NEW 8 SEWER ADAPTOR FENCE OR .. .... < ATI �+ TI SANITARY SEWER MANHOLE TO PPE TO AS REOUIRED. MAILBOX AS t D • 04,v. �'IYNO $ �wx.., i• A A? Jmat .. � . 2 1 ; °.I4 Ail s p ckt f - to MI .... a) ... •!a .n . n.. t... A�frjv,�.vM /Y".vlwYv . v/ Yic17rV/? 7r? 7N ">7N7.7iT7T :0 " : ". ......... .. CE ..12258 Ap ?,v,73' ..... ........ E �TZZiB ... �P,>iISiTNC- CITY OF TUKWILA KING COUNTY WASHINGTON ALLENTOWN WATER AND SEWER SYSTEM IMPROVEMENTS PHASE II PLAN AND PROFILE PPE. 15D-LF _- 8:SE'- N _ Q ... ... ....... .. . .. ... .:: ... .. - �''....... .. .......... . ... . - - ...... :: ROM: Ali UTIUh•• NAT: SHEAR- CONTINUOUS P4 PLAN VIEW Fx1R- CLARITY _SEE. CRD5S.SECTION;A -A- AND PLAN•VIEW ,........ ......... . .. .... ... ...... .... .... ...... 13 +00 12 +00 11 +00 10+00 � ¢ 1 ~S 2n d VI.- VI VI in N Z VI pJ II Z r N W eo io + n W m Io 2 ^ , I I 1 1 1 I �. � ' „asp §S • ..0 2+ X oo. �o a N N d o N • N V �' i < a41W Nt - a WW XI- a ...1. _ Vt ti < _ _ 41 VI i \ � Z W ( T, O• • o °; ° V �� N '� N N - 4 /4 1 14 _ : SHEET: 25 or 44 JOB NO.:00539\N-PHASE2 DWG: PLAN20 r C r CAUTION: POTENTIAL UTILITY CONFLECT - EXTRA DEPTH SHALL BE RECURRED 20 10 0 I Gray 8z Osborne, Inc. r MAINTAIN POSITIVE PIPE SLOPE 1_1 1 12222 ms j 1 1 111 ' W[ -' -N I x I� I II i I ' i i 12202 I 1 I -- .: 12214 I � T!•�i.'.. 00 ` ' P ' 1 41. .i t 1 1 2210 = i4 0C! ::f.•; _ : • , 12218 ` I \ ` - 1 c-, ,yt . \`` I >' 0 � } _ � , : _ 00:' _ - - ° ' :'a °' 1 000 F j I I I� -1 < E O < I 1 1 g v' ' t 1 :. {. ` �' { r { � � Ilrnstlw , • 0 . R 1i0WN HERE 01 SIDE SEWER LATERALS ARE 5 ;FCR tl1US1RAnVE:PURPOSES ONLY 1 1►1E ACTUAL TI ONS SHALL VARY.,AND SHAL x tffi TERL ( pNEO� IN�TFIEvFtFtD p of 0 % I ;. I 7f!4IDel[7l�1Q C— V - � � 4' �9 'F31! w : 601 . .=.1 _,;_ 5 $ _ ;�.._ - - — :u - 0 8 4,4,1,N'.- R � k O + ,. \;° f <`,> ..� f^ ...x,.1 .. D -_,__ _ 4 -- - .. • ZlC` N to CONSTRUCTION NOTES 1— W 0 CAUTION: POTENTIAL UTILITY CONFLICT. CONTRACTOR O TO VERIFY (POTHOLE) EXACT LOCATION AND DEPTH = F O EXISTING UTILITY. SE R WIE % E S C TK1 E ORDER OF WORK IN W SPECIFICATIONS W @ INSTALL NEW r PVC SIDE SEWER FROM NEW r SEWER SHEET % O3 DO NOT MAKE THIS C ONNECT)ON UNTIL SUCCESSFUL G EXISTING WATER MAIN SHALL REMAIN IN SERVICE LINT. A SUCCESSFUL PURITY AND PRESSURE TEST OF THE NEW N 1- W _ T• •Y� ...j .. .,.. ,.. t:. <�: <c s. � Zdj \ ;. ... a,, °` `. ::> , a . r. ... ��* '`6•D Y1�, .. e � �, r . x• <> ` ?.»:: ' .s..... .. 3 -.m.. ....V "r .ti$��._�,„ d, W Z . ^`, b F'l •1 R ...� 3 ° x '+� . $ '�. Y " ,� t � $ e.=....; `t :.. 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S •.., I DATE: FES. 2004 I I A ,S •.I :31v3S I H ,OL•.l I •1 :WAWA I I • H'YIT :03)ID3H3 I or • i :a3noaeev I .... : ... :.: S „:1.:� z , .sr. ,� a ..,. ` u : * t ,., �'' ` � t� :*:..'a�•e'..<...3��. - �`.'. .M...�.,:.,,:?:: .._ sg:°i: .., ... .x.,.�.�:,Y`... „ > . �. -¢ 9 4 . $ .^ §.. 3..,:: .C�a > ... , ;a•< �,...;.: ,.. .p ' »•:.. .'+� r, �F:.�.,..,.xa -f .- .t...•......._ ..,..:a�.....«...�...:.a ' .'e.� A . ; tx*° r+a �� � F,r*..a. +.. . - ._ai : .._..,.c,.. _ ,. _. a . ,��. ex ; r: A a. _ _._— __ -___. -- - = _ . • � t9'G � ^ - - CI .--- - -.- -- ... . ----------- __ —_ - ---' t IS �_ _ - -- _ F�/��- l'- � aaev -**-•---------, _ _ ... - - -- — i .�.. - " , � "_._•__�___ �►-- % 6 D ---- - �42.HDyENUE�S(wT�: =.--•— - --- - -- - -• - -- -• SYSTEM HAS BEEN WITNESSED BY THE CITY, AND THE ` --� _ -.__.� _, I t o - -'- ---- •- .� .___ ---- - - - ' — ~- EXISTING WATER SERVICES HAVE BEEN TRANSFERED TO » - - -' - -- -- 31ya �.► � ___�,� _.a ----m-- •��-- WSW S - SYSTEM SHALL THEN i BE ABANDONED M PLACE. N0ISIA3a — ` ry a # ' =-- - �� o " -- -"` g-------------. �'' �_ _ ,_ OS CONTRACTOR SHALL FURNISH AND INSTALL NEW FIRE �_ � -- � — 1 _� HYDRANT ASSEMBLY PER DETAIL SHEET 41 ~' ” �~ m '�- REMOVE EXISTING SIDEWALK AT THE ADJACENT EXPAN90N o ® R JOINT. REPLACE SIDEWALKS PER THE SPEGFRCATIONS. Q RECONNECT COSTING WATER SERVICE PER DETAIL .1 DUWAMISH RIVER g SHEET 42. N _ .c21 J � I. x INTERTIE DETAIL 8 X3 . 4.I IA FURNISH AND INSTALL OO CONTRACTOR SHALL ADJUST EXISTING MANHOLES. CATCH STA 17 +21 BASINS, WATER METERS AND VALVE BOXES TO (1) - 10' CROSS (Float) (2) - 10' GATE VALVES (R =R) (1) - 10' GATE VALVE (R %MJ) (2) - 10'1 8' REDUCER (R■MJ) • ( -) - 10' DI PIPE SPOOL (LENGTH AS (1) - 10' SOLID SLEEVE (LONG PATTERN) .. « 126 • .. ... .... .. .... ... .... 120 REQUIRED) y M `� .. . � o f ... ... ..... .... � z 1- .... .... v r " �o E ,..3. ...... ......... ......... .. ... .... .. .... ... .. .. ..... ..... .... .. - z a ... ::: « .... ..... ....... .. ...... ... ... .. .. ..... .... ... .. .. ....... ......... .. � / / / / / / / r .� i r ' /. MANHOLE. CONNECT NEW 8' SEWER PPE TO EXISTING SANITARY MANHOLE. CONTRACTOR SHALL STABILIZE MANHOLE TO RESIST LATERAL LOADING RECHANNEL MANHO 10 CONTRACTOR SHALL CONNECT NEW 8' SEWER O EXISTING SEWER PIPE. USE TRNCO ADAPTOR AS REOUIRED. 11 REMOVE AND REINSTALL SIGN. FENCE OR MAR REQUIRED. SEE SPECIFICATIONS. ... ... ...... .. ....... ... ...... .... ' d I Y 9rxo! . .rMOl o WIC I ` 111 ifita 0 % .C1 so • r • 115 « N . W S 0 110: Li ......... ......... .. W 105 100 95 ....... ......... FIRE.: CE • • 12202 1711+ . ....... CE : • 1221B. . i . r . r.: . n .. n ri . ..... N . 1 ILI • ... : :: .. .. _ :: • • ' - . ..... ... .. W « ....... 115 - N ' - ... G E � ••1 _ 2210 .r 8..rt CITY OF TUKWILA KING COUNTY WASHINGTON ALLENTOWN WATER AND SEWER SYSTEM IMPROVEMENTS PHASE II PLAN AND PROFILE • - . • 95 , +oa' LF• -• ......... ......... ......... . ... .. ................. .4TyI .. .. .. . �.. .�. y ." : .. ........ ,...... .......,.., ........, . 5•0.004 • • • • -�. • . .. . . • 5 =0 0 .. 017 +00 16 +00 15 +00 14+00 $1' /110, 7 • I K ♦ N p z, 30 N N .^ . .... W N 2 \ \\ a \-A W \\ C 1 m OO I I I I ..- — rnm \ a .., ,: 000 W II II - tai lai SHEET: OF: 44 JOB NO.: 00339 \N- PHASE2 DWG: PLANZI r 20' 10' 0 f Gray & Osborne, k. >. .. � Y a k r te {y l; 12038 i ; i1'y 2C�5g02) - :;: ., ; �` R' ' ` I � j 1 GA "AGE r — , ';�1 y • i )y Y ' ' y .. ( 2/ t � < - ! 1 I ���,�`"," L1\ , .yj •, • J5 • r t' LVz 7 a 1 \ w ( t t ., V : 1 tt r+ ' #.`�tJ � Op 01 W W 2 Cl) W W 2 8 O ! _ _ _ j • r t� ➢"Z` -- � + . : ; :�� r O O 0 ©O 0 l : 2st � , 0 O ' �! I! 0 sv t e f ` ' ~ ' a' ; � %t '1 - �' O. i €' ©O ( O :.s_' %;: i' �r' 4 _ .� _ 42 D AVENUE SOUTH 0 STA is i SIDE SEINER iLATERALS` ARE SHOWN HEREON OR ILLUSTRATIVE PURPOSES _ONLY., THE ACTUAL LOCATIONS * SHALL VARY, SHI ,.,,:%. BE. DETERMINED ,IN..THE.flELD ... - < €:�• <” »...... .. ... < .,,>„to'� _ CONSTRUCTION NOTES, _ .� � J . . ... 1 CAUTION: T OD TO SPEdFIcAnoNS. W 2 INSTALL PIPE 00 ®DO PURITY W HAS fa O EXISTING A SYSTEM EXISTING THE a 5 ____._,_, ` F _ � a. POTENTIAL UTILITY CON i'UCT. CONTRACTOR VERIFY (POTHOLE) A LOCATION AN D DEPTH VE Y P (0 OlE) E% CT LOC ON TY. SEE ORDER OF WORK IN NEW 6 PVC SIDE SEWER FROM NEW Ir SEWER TO THE R -O-W LINE. SEE DETAIL SHEET NOT MAKE THIS CONNECTION UNTIL A SUCCESSFUL AND PRESSURE TEST OF THE NEW SYSTEM BEEN WITNESSED BY THE CITY. WATER MAIN SHALL REMAIN IN SERVICE UNTIL SUCCESSFUL PURITY AND PRESSURE TEST OF THE NEW HAS BEEN WITNESSED BY THE CITY, AND THE WATER SERVICES HAVE BEEN TRANSFERED TO NEW SYSTEM. THE EXISTING SYSTEM SHA THEN LL ABANDONED IN PLACE. SHALL FURNISH AND INSTALL NEW FIRE ASSEMBLY PER DETAIL SHEET Ii EXISTING SIDEWALK AT THE ADJACENT EXPANSION REPLACE SIDEWALKS PER THE SPECIFICATIONS. 2 \ . .. F.f n- .,., \Y:.ti.?.� i�:r\ \v.4. R..'.cYl. ;±i::' ,.. � .cc. '^ . . mc „ � ^ .,: .'• w . a . - 9..:.c�.. . �� .,.:C. \ .� \• .a «., .. .... .,. tY ..:... \a..V? �.�. k \ .::..+.� .... h �� � a , � \.� v, :..a "s\ .... - .r . " z ,.;..,<. ".. ,. � � >. \• + --- m . , . . < ., , sue." \u. a>,�; ...\a. >..i a 0.';�: s \. �:. _; >a:a'"§. �±. ' c. �,.. < ...: -, �... «..e, ., x .. -:.._ ., x .r <Y x ` -• .. V i\ . $... \•3 � .,. a .. . �. < �=a \ ..:.< :. � ^bc �, -�.a �.••.. .t'- . _....+ ... i�' x.a. 7 \. 1..r ,.: �s <. .: �.- .. \..'.'�4 ... ,...., .3. -... .., +., .� ,. O � .. .. ...n a.� <,^*z.. � � ... .<.: ,: + \...6 kr... r x c �� ,<.\ - \;,.�. ._. �.� 1 .�..:, r. _ • �`i 4 .<. ,'i sy .�\ d l N7 � „� s° � Y��F� b ,\,�. "'\H, . �:,,. .. .. .«. ':�- a ..� E�.._ � \�... v... v <. a .. � .. a a' �.,� a .: �`\ ��.�� �� .. \..*� . �.. \ \�. t... \w. � >a��� ._ r,. s.. .. , . e. ,... ,.,. .. \ru. «.:....,. .. _.::� ... ..: -:.. m•�,a.> :\w, :... • arr?F•?P �.e, a. a . Ri` •1",u,.• e5!�"l'.°. Y .. .. W� a ^ .!»� :. r� >o� \�,m i ... ... .� y . .,..> . ... ... E`...... ..- <s aS a ?U �i T ...\ `�,` $! �..\ 'F �\ �'Y<A - ma `- 1. ' V..: • ' .:. ' T'. �..�r. ,n. .... ... �. <.r ...a \�. .� �. '�.. .> .:. .L. ..�: .. .< �, a 5..'� 1 .., � .:. . l". • . V .r., a > . , < � ._ � � � ,... r � .�� � ,. _�. �,. � , _. < \ •: < . .. ... ,,,.�. ..•3.. , + / 3t " � .. _ a - ,.,.. .. C... ,. > og�a� � : �' � d.. ' ,. " 9 i - \. .'c. s� •r ,r .: � Sag"""}_. ,�, , . ^v°'�.. \ •� ,.� , '� T: a e >..:. � � k " _,. .2< � ��: \?..'�, 3 .� : `sta \ a � • "' t _�::. � �:'i i i ': � k z• .3 .� x � „. .e ;,,, y s <, . < : y 3'< c x ` Aa < " ' � W • _ - , . ..�.. . �+ ..: ��,.�. \..31,:. , .: ,.. � � � 3 \ 'L..ti.� R \.,,�'� � ,,. � a .. � w i a....: - � a, v\ \.. mo >. . .>a:k t.. \ .. +.. '� i -. a ..,. .. a.;rxe , -., ...... r ..... set.,.,.„<.?r <.>... : r,�,d ... ---- —s __ . - -� ---� w .-+- - - -- _.____ -� 1 I c - _ _ "--- • - • - _. - .._. -- ”- -- - - - -- II!, --- -_,_ - ---� -- - - -` -` 77 13 - _ _ (' ^'_ —y- _ —' =fit ` _ ^ � � : _ ^---_=- . ^ - `'.- "'• ---- -_ - BE — ' C5- '_'- --- ---_ •— .__ --. — -- - ICS k -=_ =- ��.i'� - � �--- _' _ : � ® CONTRACTOR + 1 .� . -- ,.- _ - � • 1_ -. I � - ^— � �-^• i HYDRANT _ -- E---- t[� -- s - -- -W.` ® REMOVE --- ---....'•1_______ - JOINT. aD c z $ I r N 125 120 $ F. N , 1.3 - , DUWAMISH $ Y K RIVER e I I- _1 to .- • . E X(5TING :GROUND _ ..................... • O7 RECONNECT EXISTING WATER SERVICE PER DETAIL SHEET 42. ® CONTRACTOR SHALL ADJUST EXISTING MANHOLES_ CATCH BASINS. WATER METERS AND VALVE BOXES TO GRADE. ® CONNECT NEW 8' SEWER PIPE TO EXISTING SANITARY SEWER MANHOLE. CONTRACTOR SHALL STABILIZE MAIVOLE TO RESIST LATERAL LOADING. RECHANNEL MANHOLE a ...ACTOR SHALL CONNECT NEW 8' SEWER PIPE TO EXISTING SEWER PIPE USE FERNCO ADAPTOR TT REMOVE AND REINSTALL SIGN. FENCE OR MAILBOX REQUIRED. SEE SPECIFICATIONS. _ ON 141 . 1.'"' ,*� u z • � .... j .� 5► 4* 't �� AA • S 115 110 105 100 95 „ 0 � • • .. GE 4 2 0 2 . . . . . . . . .. .. . • • • • • • • : n ..... ......... ........ ......... _. ... _. .. ... AJ ._ ..... ...... .. ......... c � u .... = ^ ......... .......: • 12058 6T` GE• - • _ _.. _ ...... ..... . .. _...._... ....__ .... . ... ._. ..... .... :: – – : GE 12051 :: ......... ......... ._....... ....__... - B • PIPE ... �. �: S.ftUU4_. ._...... -..... W II) : '0 . . _ • ... :J ' ... • CITY OF TUKWILA KING COUNTY WASHINGTON ALLENTOWN WATER AND SEWER SYSTEM IMPROVEMENTS PHASE II PLAN AND PROFILE _ A M. .. y ._.. •DD: ._....... ......_._ .._...... ...._.... ::" . ... �w �._:� ......... LF : -:B S L - NEk ...._.. PiPE: , -.. ... ___... -__ �_ ..... •• ......... ...._.... _...... 4bb L� .... .. loo 95 21 +00 20 +00 19 +00 18 +00 'i O K 1 • Y 1 1 I 0 o z ry r < IA 6- IAN _ 1 0 � A N m m ~ W 1 1 Z n \ - VV ¢ o 0 O goo re a y' -, 4_ - SHEET: 27 OF: 44 JOB NO.: 00539 \N- PHASE2 DW PLAN22 20' 10' 0 2Ce 40' I 1.J I Gray & Osborne, Inc). tN ril 1 ='� 1 I j : 1 y i '' A te \— 1 i202G - ■ _ I 1 o '` \ N 1 2026 \ V ...1 " 1: �� 1; 12034 i Ia • `` ,- . '©OO . .:c `t , .. • : : ,;,r STA 21 +55 11854 i _ --_ \: . (. O I ©O 1 ©O ®O ©O :. %� 1.: }-:-. J 42ND AVENUE SOUTH � O _ • \ STA +75 O = '�-- J-- — — — r L ;:.. °` "`�'`�'-� �' " : ia: - ,'• ' Y `)3. < - "' — - ;r:,:- ::�-,: •, mac ^, co N n.`•` W W x CO W N — — — � — - � - .-- R LATERALS' ARE*SHOWN HEREON ACTt1AL T ILLUSTRATIVE D ARY SF1A .. 5� :f-t id N o W ? `. A::, .. I I 5 . . e ....n .,..rv.:n.a.�.. 9 .. -. w ... " yga W CONSTRUCTION NOTES. .<. >a. .:,. <a z - �,..�.�� .:.. +.`., - , < h -.s:.. #:: �_.v3. �. .� >afi c n r. ., . } . �<e. .. » "..w r .. >:. `. >.: aae h: . �l .. S"` . :t .,. r`. >........... — .. �' ! x, "" >Y., x \:..'" i. ...`.3 s•a\s .. .. - . l':ca'.F C .'.. `` a .. .:ai F Z CAUTION. POTENTIAL UTILItt CONFLICT. CONTRACTOR 10 VERIFY (POTHOLE) W OF EXISTING UTIU EXACT LOCATION OF WORK OCATION AND I! CEPTH SPECIFICATIDNS, TM• SEE OR DE ...._ O INSTALL NEW 6" PVC SIDE SEWER FR011 NEW r SEWER PIPE TO THE R -O -W LINE. SEE DETAIL SHEET �....., .. » >. .. .. - .vc _'' � -. <. 'h. ..�. ... . .... - . w:• r' : °\ c: n `� .:...y ..s, �;. ^r.... ,., w,. ,..._ . >u_ .. . \ >�k >: e s ...: �.� ..,.;F.,..,.> ..@ n.,:a.<Kat...;:..:�\ .:....,. ,.u,- >....- .a•. rw ` > ... � e# < ': . h . . 'ZC` . ,,. , r . -: x ,<::>. �., ... :.:. w...= y?3. -, ,.:...,< .a::.:...,., - s ?,. h ;� >� 1 .: i� w .. . � � ._.. F N T F .: in..>..� � `� ?, `T.._.8" 3.F �.,. <^ a _ . �, L `:..: Y i . � \� s .,, ,.. ,_`- .. . �--�-� DATE: FEB. 2004 1 A ,S :31 H AL .A.1 I l s•3 :NMYaa I I CHECKED: J.H.H. I I *o Y :03A021ddY I -� —'- 18 C1 W- W - - -- - -- - fir ^ `1 ^' -- - --•-'- : _ - = —" - _"•. �---°" —. - -_. o - — � �_ _._,.�._�---- tt .,__— — — c . -- _ A C SUCCESSFUL TEA — _ ` _ O PURITY AND PRESSURTEST OF THE NEW SYSTEM -_� ' , — — -- "- • - ^'�— — — `` _ —� _ - -_ - -_ _ - ^ -`- I HAS BEEN VATNESSED BY THE PTY. „��- ._- _-t OddY - - -- - _ -- .___ - __ — O EXISTING WATER MAIN SHALL REMAIN IN SERVICE UNTIL _ __- ._ —__- -5>.3 .��- -- - SYSTEM ._�_ EXISTING WATER SERVICES HAVE BEEN TRANSFERED TO THE NEW SYSTEM SHALL THEN THE EXISTING SYSTEM SHA THEN BE ABANDONED IN PLACE. ® CONTRACTOR SHALL FURNISH AND INSTALL NET1 FIRE HYDRANT ASSEMBLY PER DETAL SHEET 41. 311 „ � � _ � • __`�„_ ....___ -- „ -” '.' - --. -. ` NOISIA3d .-----1 (V --- ----__ ; r I ; 125 120 115 110 105 100 95 t 1 ei J - z 0 s ° n v) . o ° H . vt I I 5 DUWAMISH RIVE j o 0 n o + - , . ! o .... -- £ SING.3232 U u _ . _ , _ _........___ ... _ • ,v ta X P- X Y] or •a - O ® © ® IO II o , p- • VI• •,, REMOVE EXISTING SIDEWALK AT THE ADJACENT JOINT, REPLACE SIDEWALKS PER THE SPECIFICATIONS_ RECONNECT EXISTING WATER SERVICE PER SHEET 42. CONTRACTOR SHALL ADJUST EXISTING MANHOLES BASINS, WATER METERS AND VALVE BOXES CONNECT NEW 8' SEWER PIPE TO EXISTING MANHOLE. CONTRACTOR SHALL STABILIZE RESIST LATERAL LOADING. RECHANNEL MANHOLE CONTRACTOR SHALL CONNECT NEW 8' SEWEI EXISTING SEWER PIPE. USE FERNCO ADAPTOR REMOVE AND REINSTALL SHOAL FENCE OR REOUIRED, SEE SPECIFICATIONS ..... N dt W TFI.. .,..,.... :. . ; .. � �, ; EXPANSION DETAIL CATCH TO GRADE. SANITARY MANHOLE TO AS REOUIRED. AS REDARED. MAILBOX AS , _. m . do ;;;,07,74! .0:::",,,,, 1 1� m : 1; 1 . .t, = : g;,.10 0,94.0 Y o, OA N ui • • < ♦/ ,. • K . 1 • -, -• Y • . ♦LV • TyV VyV V • V V - • /Y /V, V /♦� ... _ : GI:• 1202 V / ♦' V v Y/ 'yY V ♦' / ♦.�- /.� /V , 34 /.VI _, � E •ies4 LF•- SEWE PIPE' ••• :: _ . b��..<,.. wx s.: -. s< c . & 202 -0•• — __. ».... _. , e'am _ _...__.._.._ CITY OF TUKWILA KING COUNTY WASHINGTON ALLENTOWN WATER AND SEWER SYSTEM IMPROVEMENTS PHASE II PLAN AND PROFILE w 07 200 S�D004 ... ...: .. +ma c. ..,.- ,":,...., ..:�.ws>M - �z 54•-0.004 : _ • - 95 25 +00 24 +00 23 +00 22 +00 t O cc N� i 1 <0 o Zv) A.. v vt c. �t0 ap W I 1 /�O n n t} Fe ^ o V o °° 6. I . / a d'2 W SHEET: ZH OF: 44 JOB NO.: 00539NN- PHASE2 DWG: PLAN23 20' 10' 0 t � � . p T a i a. mm ' --_•_ _ lz R `I [ F I. CHURCH I. 1 .; y I` � \ '` lsla C sls f = . : 1 S 8 , , " +; I A t ^.i •.. F� �� 1 . Z I I j j } �:-, p i H / < ,} � � _ j C M :- i° �• ;wg :..:, 89 F VVV - 42ND �Ay E SOUTM ©O Q z < :�•. ♦ ♦ 1 t � •`' 838 .:�� � �- ` 1 1 . ,- � � N 1 � ...'L`."'•'$ _ i ` . I "''= ° <.„ ti CJs - y u ... � : 1 f' W _ N V) �`L ' rt.' _. � —` d--- '�3�� '�.. t .. - // '® ' +� c �> 1, ., -"�- $ _ J x r.. :s a 29 k .......... � �__ y.:r R^ n� 18' C.I. "' "'» �-- �� u IN 4 - zl ,.Y -z,-� F...______-3.4.4- �''_• ; 'i t�,'i .ie 3 :.s: 'i:` ' �f � C e'er. 71 r ,.. .< , .. i . �..ti . F ' � +F j• • ate I 1 'I OQ - t y_ �`� _. .. _ - trA■ � N at k 2 6 O �. ` , sIDE,sExtFt uTERAt5;nRE sNowN;�#rtE "FOR TRATIYE PURPOSE ONLY' = CTU TH AAL. LOCATNONS ,$it1"ALI: YARY SH . AND r n . `DEDETERMIHE[t 1N 11-C.FIELD ,.s n 'd aa„2.r, i S : . o , .. , x >`� a , 2 ' ^` E v �\ r' t y t�?t- ® :,,r- ° . _ � - n ,, �x . ., t N �1 CAVERN: H TO CONSTRUCTION MO NOTES, POTENTIAL U EXACT CONFLICT. CON VERiY (POTHOLE) EXACT ER OF LOCATION AND EXISTING UTILITY ., DEPTH SEE ORDER OF WORK I THE NEW 6* PVC SI SEWER FROM NEW r SEWER THE R e W LINE. S SHEET NOT NOT MAKE THS CONNECTION UNTIL ttES N UNM A SUESSFUI AND PRESSURE TEST OF THE NEW SYSTEM BEEN WITNESSED BY THE CITY, WATER MAIN SHALL REMAIN IN SERVICE UNTIL SUCCESSFUL PURITY AND PRESSURE TEST OF THE NEW HAS BEEN WITNESSED BY NE CITY, AND THE WATER SERVICES HAVE BEEN TRANS EKED TO NEW SYSTEM. NE EXISTING SYSTEM SHALL THEN ABANDONED N PLACE. SHALL FURNISH AND INSTALL NEW FIRE ASSEMBLY PER DETAIL SHEET 41, Z .! : do �� ��� q s k. .. v �^ . , � ��� a C¢ to x� ..° , � � � � - a OF Z SPECIFlCATIONS INSTALL W O D W O3 DO O 0) PURITY -. I HAS O EXISTING A I SYSTEM - " _•---:..:,: �,•�- \ ---2..: >� -,-•_` a e � --.`., y .. ` 9 ` _ ' - - ---- = "- __ - ^ - `• ---- - �_._ - ----- ". _.'.- -.. .___ "•- �...,��- _ -- � �-" - -.�'' ' = � - ��„ \_ 5 '\ `^ `. -- _��__ F_•=n _""'--- ...-_. '«- � ----- _ �_� �_ - --- -- -- -�'� -� - - -__.� ��"" - — b '� � _ u _ `'.•- 1- --- - ` '�- ��� o� o _ — z • '�.. --.� "' - -I — ----- - - _ -� • . C, , « iz"� - ' - - ~ _._.. --- - __..__.. - __. — + n ` N I EXISTING . THE BE a ti. O CONTRACTOR S `Y HYDRANT 126 120 115 110 105 100 95 A Y• 1. GE• •11814 > , ......... GE 11818 < ..... X ..... ', • ... re + o 1 ti N m i 1 Z = + ..... • DUWAMISH RIVER n 1 0 X . w, ... EXISTING ..... /. Y. A 777777 ti " -• ......... ......... CE 11830 ° v : d _ o TFtOUND • � � ' � -- o I o + " H 777777777 : , � ._........._.. - r J 4 N E + 7 • e t . ». • » . 1. � Z 4 . d 3 w 28- W m o F71 :A p x F • a . V- 1s R 8 W u .J a. n S g to U I . , 'u= R F i B. ut 3 3 = i a J z . n ---,c JB u , �m _s W., j w b u x to i o v. . I r , u J F cr ' :2 y � u 3 i3. �a u k' . J 1 �- .......... ». •• Y.// ••••••••• - ..- ......».�.......- .. ........... . ._. «..�.. ID i W ill .... O6 REMOVE EXISTING JOINT. REPLACE p7 RECONNECT EXISTING I SHEET 42. ® CONTRACTOR SHALL BASINS. WATER CONNECT NEW ® MAN CONTRACTOR RESIST LATERAL TO CONTRACTOR SHALL EXISTING SEVER ® REMOVE AND REINSTALL REQUIRED. SEE .. ... .... _ ......... ...... . SIDEWALK SIDEWALKS WATER ADJUST METERS AND 8' SEWER PIPE SHA LOADING. RECHANNEL CONNECT PIPE USE SIGN. SPECIFICATIONS, ... .. AT THE ADJACENT EXPANSION PER THE SPECIFICATIONS. SERVICE PER DETAIL EXISTING MANHOLES. -•"' VALVE BOXES TO GRADE. TO EXISTING SANITARY LL STABILIZE MANHOLE MANM NEW 8' SEWS R PRE FERNCO ADAPTO FENCE OR MAILBOX AS . - ... - ... . . ' , t. SEWER TO 110 85 0 :::: "►- :. Ill d 1 , . ••- 1, `.. .. ':..... . ,, . -....... •. / / � / . ......... /. / ......... /l Y' Y /• ••••••••• r w .....-... ......... 850 w -.. .. .. .. - -- .... ......... 0 ..... ......... - ....... .... ]1840.. ..... • • • ...... ....... .... ......... —9— cE 31822 GE 1838.... — ........ • • • • 433:11*. -..g':•SE trPIPE' "::::::-:. .. ......... ......... ........ ...... ... .. ....... .... • s ona • ..... ......... ......... .... 4 .. .... ........ ........ ......... ..... . . ......... .... • • ... ..... .... ......... ....... .. ......... ... ..... S.:(1.004 ........ .. .... • - • . . .... . 29 +00 28 +00 27 +00 26 +00 n .. m IN J co ry° • 1 W I • I I , p 1 •o rc $ •f O z. :t o ° n d a • m 4 r �O of -1 NJ 111 I m an R io 0 • SHEET: 29 OF: 44 JOB NO.:00539 \N -Pi ASE2 DWG: PLAN24 T Q Q r r r r 20' 10' 0 20' 40' I ` • , ...1 I SEE SHEET 35 Z = 288 LF - 8' SEWER PIPE o Z - ' , ( i { co NI � < Qtt662 1 + y W --.1._,,' . ' V � 1 1 I 1 I Q .. i g o e^ W R E � � ' CCI o ,. < X. U o' 11658 W ' : .;. 1 � ��� I - Q ©� 1 Am • i k..-..1.-11 , � � l tt665 { 3 ` 115G2 - ( • i i 11810 � i 165 LF - 1 ... W Ill _ VJ W 6' WATER SE VCE ' - 2 ST • ©O o Ri , — — — g d ,: i O :1 42ND AVENUE SOUTH — _ !. j G c te: 0 s �A T .. ,., t c a 9. '+i'I.,_=...— f SSE SEWER,: LATERALS' ARE SHOWN HERE�r a FOR V f PLOSES O THE` aRATI AL x klit CA SH VAR AND SHA L Axi <,. or; D�tERMnJED F IELD 7777, Ik 4 . - . F es i T e .. $9 Y a ' w _ _ : = 1 to S „` �, ;x..,.S . :._� .a. Mil � 1♦ w .1 wsa��:.a `�\ ��._. ..<w- i.:.. -a.-.• :-= -�.. i' "$ `l €'g $ill , r -x. ,,;.... ' R Fia - -,. `�"V3 .' 1 , 777'7 iY`t -, y , a..... \. .�.'?€.,,. <. S �. i s `1'<'#v a .s .,. ,Na' k �.;.:., - ..:i'�::.+. - .b. l�v}8 �kN ° k�ai CONSTRUCTION NOTES' ..� 9.. �. 1tvz ..,.a:.t :- o.. Se 4 'h R T ' k.. \ C. , .a. °\✓. ..;: •_<? <.� ,�,, :, \ r �* ....s ^�. � i.. � ,.. x . v.: o. - .N*,',ci. .x. ;} ;a..H a : 7 x -e R ? <a... .32. "* . -.: 'r`,. ..:.?..mac. .. e.. ...- w 7777... �. ...:a.�A.',. ., T.,.e �.o. ` .. ` 7777 .. ..........: .,. .., .. 7777:. .. .. 7:777 .. .. k. +. e. . < . :.. � 1. 777 A � . :_, :. . 'T . _. ... 7 77 . 7777 , 7777 .u. 7777. 7777 .. [ <.... ,> #... ..t... 7777 .. ...x.. .�-.. .. ,az., a ,�_ � :. W W 1 CAUTION: POTENTIAL 1 T TEN L CO CONTRACTOR TO VERIFY (POTHOLE) EXACT LOCATION AND DEPTH SEE ORDER OF WORK iN THE ILI W ! SPECIFICATIONS. Cl, O INSTALL NEW 6' PVC SIDE SEWER FROM NEW 8" SEWER PIPE TO THE R-O-W LINE. SEE DETAIL SHEET 40. 3O DO NOT MAKE THIS CONNECTION UNTIL A SUCCESSFUL NEW SYSTEM i HAS BEEN WITNESSED BY 'ME 077. 0 EXISTING WATER MAIN SHALL REMAIN IN SERVCE UNTIL PURITY AND PRESSURE ZEST OF THE NEW i SYSTEM HAS BEEN WITNESSED B Y THE CITY. AND THE EXISTING WATER SERVICES HAVE BEEN TRANSFERED TO THE NEW SYSTEM. THE EXISTING SYSTEM SHALL THEN BE ABANDONED M PLACE. O. CONTRACTOR SHALL FURMSH AND INSTALL NEW FIRE HYDRANT ASSEMBLY PER DETAI SHEET 41. © REMOVE EXISTING SIDEWALK AT THE ADJACENT EXPANSION JOINT. REPLACE SIDEWALKS PER THE SPECIFICATIONS ® RECONNECT EXISTING WATER SERVICE PER DETAIL SHEET 42. @ CONTRACTOR SHALL ADJUST EXISTING MANHOLES. CATCH BASINS. WATER METERS AND VALVE BOXES TO GRAD" ® CONNECT NEW 8' SEWER PIPE TO EXISTING SANITARY SEWER MANHOLE. CONTRACTOR SHALL STABILIZE Mi - , 4 - € ...... <�.. 7 ,.< \.. .. . k . c , # - 77 . v.. •. t' yv. 77 77 . . ,. ... .. �. ... .. ...::...._ .. 77, a _ .�. a' "`-- -..,.......- :� ......a... . „-- 3,; . ; ...� ,.. �,... 'y: , �..., 7777 ..: e. .� ::$ :� �,,� a -,r"b 7777..- .. .. , ,n . . ... .,K 7777 . ,. :. 2 �' 3. » Y? ...a+ -..v., 2„ <i. �.. ia. T. v . >.v ........ , a. .. 3. �. ...:,, a , 7^�. v...r `i. ... < t.. a. :.,.�. .. max., .. .N ., *t� ..w`�C .' .&�......�\.. § .. .�� :7777 �'\ v �. N ,c.., `,?.�i �^�. .. an ;a 777 ..v > .A� q �, � :. :�"� .< ...„ .., ......,.. .:. z� _ ,�. s ' . - .. r \ .. a i = ,. x �. 'c :. ...,. ,. �..,.- .z,.si�,t r r w x+c> > ..a�,.::.,'- w.,r_zy.., �.. ...<m a ..� , - W ...,..:.. ,.Vr U - ___ _ ..___ ~ � — � m -"— - ---' _ ` - - -- - -�_ --" - ---= _____,_ -_ - T __ ^:•-_,...• -- _ � -- -_� V -�_—. -_x�= - -- - - - - -- -- _'__ =-'- _ : _"-- _ ._. -- ---. — _-- - : =— �� - -� _ - _ -- — -�— .. -----' - - _..___._- - _ - _� - -1 - ' --- .. -_._ --- �"_--- --- 7777.. -= -.. --'- _ _�.. --- -_,--- ;. 777__7_ . _. -.-_ _� ,,,„,.M _•-^ � =� ._ of —± aD .. I d W = 0 cr, i n N __ _ • k•------ I '^ DUWAMISH RIVER ` O n I h .1 + N n' ..- ---R- may,_ —� -- - ^ �-- ._ _... '_". I: RESIST LATERAL LOADING. RECHANNEL MANHOLE 10 CONTRACTOR SHALL CONNECT NEW 8' SEWER EXISTING SEWER PIPE. USE FERNCO ADAPTOR -‘ 126 120 ............ 7777.7777 . ........ ......... 115 g I -- .. ... . . 02 110 W • � 105 100 95 ...- 7777 ......... 7777... -- ......... ...... U w .. 7777 . N . ......... ......... ......... ......... ......... ......... 8 SEWER PIPE ......... .. ... »_»» . . . ... ... 7 ..... .- ._ -.••• 7777 »......_........... ».. -_ 7777.. -.- -7777. ... -7777- ....... :: . «. ».. - ... -...- .. G_ E QT . -.. -7777 r. - •n .r.• - ......•• OE 11662 ..____.. -Q'-': 4 }4 ••7 7 . . . 7777... -. ......... ...... v 7777.. ......••• ••....... GE.- 11666 ...... .. V I : -7777. .. ......... ......... ......•.• ......... ......... .7 : - .. .. 7777..... .7.777... « » ...«.... _ . . . C ........ ......... ......... ......... - -. -7777. 7777.. 7":'7'77. —�_ o• "° . It REMOVE REQUIRED. 77.77.777 : 7777. • .... . °...« • • 7 • .. ... • • • ? . :: - - - • :: . : •:: AND REINSTALL SIGN, SEE SPECIFICATIONS. 77777..77 '777777777 ........ 7777.. -.. FENCE OR MALBOX AS . : .. '7 .. » ... �. .- 95 ...... ••...... ......... ......... Gt... . {5802 »� ......... ......... ......... ........ . ........ 7 .... -... ......... 7777 .. . . 7777... 3-- - co ILI 7 7 7 7 7777 7777.7777 .1E 39 LF - • :'1•�. i- 1 » .. ».. » ................. «. ... .. -- ... . ....... 7777... -. ~ ---- tf • 8 ' SEWER- PIPE _ ..a.,.. R �..... Si O.OW 7 7 7 7 • • 5,0.008. ..... ......... - • • • • • • • • • • • • •••••••• . .. • ..... ........• .......... 7777. ......... ......... ... 7777 .. :• 7777. ..- .. -... .. 33 +00 32 +00 31 +00 30+00 linkrn .- me o N in i in I l s n 3. N .- o a , N 2 W ÷i _ -I W I I I `� � mao� Q ¢wam -. ■ . o. .,1 to ,.j 1 � SHEET: 30 OF: 44 JOB NO.:00539 \N- PHASE2 NN <__ _ I DWG: PLAN25 r r r f f ? 20' 10' 0 I u < a. .. 11620 1 1 '•.. N W\ 1 c; 11616 - ` °'�� I ' r z i rtf. OD J: \ \ i ' Tj \ � , 1 \• \ 11630 \ S� - ii Z cc I 3 1 h I I 110 2 1 ` ttt i 42ND AVENUE SOUTH ° N C. 0 ; O ©� j © o '!!!' © L © O 01 01 cc) F• W LIJ Z U) W IM q ` ' - - E• � - i V ' J` / �� tl �,�� R p�d]YSifr„orsl• pA Y• 7 r I �.���. - - - - - - - 1 - _ , SIDE SEWER• :LATERALS ARE:SHOWN HE:RE ; ; FOR ILLUSTRATIVE' PURPOSES E611 -T TH ACTUAL LL LOCJlTiONS,SHA V ART'ANb Sti 4',,i,‘4;1 BE DETEt2MINED` s THEE fIELO. s . . . - L -• - 4�. =u �4Af�o��tiwll�Mf•w� A , = � _ s+a ..........r...=:= .- "-- = muw °, rwf�ss W + � M —* . ; T.' t+ � x.33 a� P - 5_ ..sx,E.... ^ sip ra 7,7 .. - - + �� ..aa� -`- ,. :,,., .off^ ......:C�?* ' , xa,., : ..3,.. cam' . �. c .. _., .._:.:..k ;.: . -. :. .�^ as 777 7 3 . " ..F. , -� : .,. '; ` � 4,77+7 � r a rr: r•+s. ..a �� �� C9 au I W 1 CAUTION: W O _ TO to OF W SPECIFICATIONS. W O INSTALL co PIPE ® Mart HAS CONSTRUCTION NOTE81 POTENTIAL UTILITY CONFLICT. CONTRACTCR VERIFY /POTHOLE EXACT LOCATION ANI ExISnNO UTILITY. SEE ORDER OF WORK NEW 6' PVC sot SEWER FROM NEW r SEWER TO THE R -O -W LINE SEE DETAIL SHEET 40, AND PRESSURE TEST OF THE NEW SYST BEEN YATNESSED BY THE CITY. WAT MAIN SHALL REMAIN IN SERVICE UNTIL W TEM H EEN TNESSED BY THE �AS B Vn CITY. AND THE T WATER SERVICES HAVE BEEN TRNSfEREO TO . .� +:. Z i. #, X . . F't`!„> ka S R �. ?� � t y, f ..w,. ..»1?c� : r?Ttt l+T� S .: ,. ., .x .b. ''` "'. ,. �a va +:�.,. . . . . .:r.- .: >:, a. s..n: . >... w .. l Z ,^:r'.;•. >, 7, i.. �. F `x'. <, r 7 .. H .. \ r. ; i , � ..,: o ;: `�vmr s�,� y x •a� sac -�34 .: . ,axx .z a a �� � � i �� =ak - } .�. .., 77,7, ,,7777. ,:.. . _. �,: :":i - 4 . i ,,., , 1 .,:Fy , a... :.� � .. S -� s• F'; .... :. .� x;. � "4:�. �... -w. > 36 �v . ' 4 . Y a e ... 1� . k, S .. Ta .. ,` .s- �� ^.. C . ,.. ,� _ . .... � . ,.,», a *T, . b + it te _ a.a. - ,, t .�� , � �� � a. x ;- �.;... m ....a: as ��.: � ,..,; :; �� a r,.a r� x -:a•. a 3 \ `Z .a ...Y..+': .. �..a'�' - . � `s� „� -..?:. . � .`a..rk � .. .. �,.� . :.°'. - _ ' _ �_ 1 �, 7 777' �.- . .- - ---- '--- -- -'-` -- r + = --z� -- _ - - .- -- - - - .._ - 1 +;:. 77 ___7777 --- '�� :� , � _ _ -- -- I _- ' -c7 -_'- -- 2 _ .� . + n 77_77 /3 .-- -.�- -- - - 777 7 ' - _- - -- - - -- _ 5- 3 " - ____777 '- -- ._..__...__..__ „ .. _ - - - -� - ,_ _ y _- ___.__- - EXISTING O S O m EXISTING -- 7'77 -_ _ ' -` -- .` - ._ - -_ --- - - - " '� ----------------,----.--,----=--- _- _ � -- ° - �-` 7-- --' -""'_ - a ' . � - ` --'� - ..._ -. F _- __-- .. .� =^- _. .. _ _ - -. �.. x- --- '- .- .-- � - -. ..- '- - - -- r � o _ < ' r m F < i t 125 120 115 110 105 100 95 , = '� �` :........ ••••••••• ••••••... ' , -• :✓ -' l __ _- - - - ...•••• .. ... ...... v ... _ 77 '' 77. v " 9,- , - . - -:__ =r- _- ' 0 z0 < _ 4 ......... : : ... ... �, �+•- �-' O m s s - . • • 4 •4g� i , U 3 I N vi ......... ......... _._.. »_7777.. . .. .».« ..; 7 .... • -•• _� -,� -- 1 10 '^ N .: :: ::: . : ........ _..._...._ .» ; .. . .7 7 77 ......... _.. _ .............................. ... ..�. ;A m n - ........ _. ». ».. »... »_ .......... 77• .•• . •........ ......... . � • "' R .. DUWAMISH «_._...._...._ N ......... 7777. .. 7777 K ; ti W N N RIVER < 0 _ W o < 0 0 i o i i 0 a N LI L..1 '2" ¢ 2 a . cc v ......... ......... ......... ... ...... 7777 t% MIND.CRGOND-....:: ..• »..«..».... » ............« 7»777 ... ... 7777 :7777 .. .. 7777. 7777 •• .•....._.......... GE• 116.30 ......... ......... ......... 7777 ..... . ........ ......... ......... .... ......... .............. .- .......... 7777 ...«......».. .. 7777.. ... ...... ......... ......... 7777 7777. ♦ ♦ ♦ ....... . ..7777... 7777- .. ........................... GE • • i , N z o n i 2 z ^ ¢< H 7777.... . ...... : .. »...» .... Z ti. W co m � �+ � ♦� . .. - ... ... 777 . : 7777.. CO CO W W .. THE NEW SYSTEM. THE EXISTING BE ABANDONED M PLACE. OS CONTRACTOR SHALL FURNISH HYDRANT ASSEMBLY PER DETAIL ® JOINT. REPLACE SIDEWALKS 0 RECONNECT EXISTING WATER SHEET 42. © CONTRACTOR SHALL ADJUST BASINS. WATER METERS AND ® CONNECT NEW 8- SEWER PIPE MANHOLE. CONTRACTOR SHALL RESIST LATERAL LOADING. 10 CONTRACTOR SHALL CONNECT EXISTING SEWER PIPE. USE 11 REMOVE AND REINSTALL SIGN. REQUIRED. SEE SPECIFICATIONS . ... 777.7... 77.77. ........ - .. 7777: : ......... ...... -.. ....... .' :_.- -- .. ..... :::: • /.:: • 7r:: - ..... 77 77... SYSTEM SHALL THEN AND INSTALL NEW FIRE SHEET 41. PER TH sPEORCA11aIS SERVICE PER DETAIL EXISTING MANHOLES. CATCH VALVE BOXES TO GRADE TO EXISTING SANITARY STABILIZE MANHOLE RECHANNEL MANHOLE AS NEW 8' SEWER PIPE TO FERNCO ADAPTOR FENCE OR MAILBOX ......-.. .. 7777... . .. �� . _ ••• 90N SENER KOUIRED. 95 ......... ......... 7777.7777 ... ... ... o W •••• ....... � t6 1b • •••....... • ........ ......... :11642 .... .. - .:_ . _ GE 1162 O' W ..Tq 7777 7777 ......... ......... ........ ......... 7777 7777 ..... ... ... ... ..7777... ......... 777 -EP -- ... 7 777_. . •• ......... ......... 7777 �.." ........ 96 LF - -8 ........ 7777_.._. ......... ........ .. --- ° SEWER PIPE .. <a : - - _. x . _. . , ... .. • 7777 S*LE004 �� , :gs- a..., ..,.:w.�. „ 7777 ......... ...... .... ..... ......... 7777..... ... ... _.. ....... ......... ......... ......... ......... ......... .. ....... 7777..... .._... ... ........................... ........................... ......... ....... ......... ......... ......... 7777.. • .. .., ... ....... • .. 7...... . 37 +00 38 +00 35 +00 34 +00 NK o t ± .', h 6 , Z h M d '417) o T - W 1 K h 6 0 O .- a g " i I SHEET: 31 OF: 44 JOB NO.: 00539 \N-PHASE2 DWG: PLAN26 t r r r r r C C r 20' 10' 0 u I Gray . 8z Osborn, Inc. 1 , / 1, `, , _ _ / X` I + + +, , ,5 ,'0 / / I , , I �; g \ Y I , It6',, -.` / .. ,,.. ?��''•" -- I I �� N , _ I k v " ` y ' - - •' , . r te~ I +� f Q czr Ql�'� >'ir•` ♦!� . r t '�1%/. f � _ ' ' 5 `` r ,. � / r N SIDE SSE N£R -LATERALS " ARE SHOWN HEREON F ILLUSTRIf PURPO ONL14 M _ A . 0R A ACTUA L OCA S HALL VARC AND, a. BE, NED FIELD �0 ,16 S j i - ... ...••� 4.":1.-," . :. , t E r IJ e $ I �y t r ,e 1 �o r CO V y p , �. q - '' <, r : ' CONSTRUCTION NOTES. useillMi / 4' - 00 � �- .ma x tt.k # p, g et * j �_:< I, `• i .. .— .._ -- u i� � �'� ` �.. Crh,C 2 " : 0 CAUTION: POTENTIAL UTILITY CONFLICT. CONTRACTOR "'°t•.�" �s a i � ..^ \ �. STI :. •, '�� \\ TO VERIFY (POTHOLE) EXACT LOCATION AND DEPTH r :r'' 2 OF EXISTING UTILITY. SEE ORDER OF WORK tN THE . t .r .:•...r. r � ,., � � 60 SPEgF1CATI0N5. s,�i 0 ® INSTALL NEW 6" PVC SIDE SEWER FROM NEW 8' SEWER �� ; a� �° t t� PIPE TO THE R -O -W UNE. SEE DETAIL SHEET 40. '� �' ' ' <`• �' 4 .,. r 0 DO NOT MAKE THIS CONNECTION UNTIL A SUCCESSFUL • PURITY AND PRESSURE TEST OF THE NEW SYSTEM s • • � ? •., r g c� j r: HAS BEEN WITNESSED BY THE OM I DATE: FEB. 2004 I (SCALE 1' 420 HI 1'.S'V I *.rs'3 :wAVaa I CHECKED: J.M.M. I I APPROVED: T.J.O. — � y / / � ---- -- v_ • --� 0 EXISTING WATER MAIN SHALL REMMN IN SERVICE UNTIL �,•� �� -,,,, ,... \ 4 _ . , fi A SUCCESSFUL PURITY AND PRESSURE TEST OF THE NEW ^" ` �� EXISTING WATER SERVICES H VE BEEN TRANSFE ED TO THE Q .. ' °a' �`�¢• `` " THE NEW SYSTEM. THE EXISTING SYSTEM SHALL THEN 'S9 - "' ' .+ BE ABANDONED IN PLACE. •.. OddY 125 120 .. ....... .... ... .. .... ... .. ... ...... 115 110 105 ...... ......... ......... ......... ......... 100 95 .. ... .... I""' W.... .. ... ... ........ T ::: ,. ......... ... . • .. ».. LF $ � S --' W m ... ............ ..... . - ...- - -_.__o I ---� L • z° = I +�„ N ', - .... ... ._ .. . . - I _ n d En ExlSTIB4 . . - - ---- ---- 1 4 7 • _. _' �- — DUWAMISH RIVER _ N ' O W _ , ^ .. ,. Y. .. . . . . . . EkiSY 62):12 METRO StUD 1 'QRCE MAIN . ••`•.� �� �V •� gN.' -� A ` ` • \ s s, , \ m \\N n N ... ...; p 6t[ � y� i ). i t ;\ ' `\ `11' `.\ \ k � .• CO � \ \. \ �� `. \ \VG 4i NN N �� , \\ � 4 !/ \ � � \ \ \ \\ \ ' \ \� � N. �� . ,: ` .. .` ..`.`.... ..` ... . . ... ......... . ' • • - � J � & 1, OS CONTRACTOR SHALL FURNISH AND INSTALL HYDRANT ASSEMBLY PER DETAIL SHEET ® REMOVE EXISTING SIDEWALK AT THE JOINT. REPLACE SIDEWALKS PER THE RECONNECT EXISTING WATER SERVICE SHEET 42. ® CONTRACTOR SHALL ADJUST EXISTING BASINS. WATER METERS AND VALVE ® CONNECT NEW B' SEWER PIPE TO EXISTING MANHOLE. CONTRACTOR SHALL STABILIZE RESIST LAIERAL LOADING RECHANNEL IO CONTRACTOR SHALL CONNECT NEW 8' EXISTING SEWER PIPE. USE FERNCO ADAPTOR ® REMOVE AND REINSTALL SIGN. FENCE REQUIRED. SEE SPEcFCATIONS. ......... ......... ......... ......... ......... ......... ......... ........................... ..... ............................... -. ....... ...._.. ......... ... . . .... ......... ......... ......... ......... ......... ....... -... NEW FIRE 41. ADJACENT EXPANSION SPECIFICATIONS. PER DETAIL MANHOLES CATCH BOXES TO GRADE. SANITARY SEWER MANHOLE TO MANHOLE AS REQUIRED. SEWER PIPE TO AS REQUIRED. OR MAILBOX AS .. _ . .... .._. - _ ... .. » : .; . ... ... 95 31v0 NOISIA3N m -' '"' 1 YMO,c 0 arwo # io IMK t MR 4. le / b.; i .... .� i Y I i i �. cti T PO' W 1.10 -•- _. _ .... .. :... .. ... ... ... ... °*""� it ,.. • ... ............... .. ...... 3 . . .. T -. :. 51.111G :LAIN - ..... ......... ......... ......... ......... -EXISTING-8 SEWER PPE 0 :~ ..: .... .... ..... ... ......... ......... ._ .... CITY OF TUKWILA KING COUNTY WASHINGTON ALLENTOWN WATER AND SEWER SYSTEM IMPROVEMENTS PHASE II PLAN AND PROFILE ..... . ........ _ ..... 0. -.. . .... .. _ .- ....... ......... ......... ......... .... ._ .... .... ....... .. -. . ........ ...... :: :. 40 +00 39 +00 38 +00 ^� 'i ,� Y N Z 1 L .. fn N + vim v d w.„ ~ WZN 7� r • O CO Cp N 1 1 Z I ��Onn X 0 nCDIM ` II .6 .6 .6 N + 000 N co l ii ■ v 4 ac.,....: hiW W V+ \ /~ ZW � ( � J � O,0 CO .\ O o 1 1 \ ^ 00 00, 9 . r i J o o n . a _ , _: SHEET: 32 OF: 44 JOB N0.: 00539 \N- PHASE2 DWG: PLAN27 z r 20 TO' 0 u I gray & Osborne, Inc. I VP _ CO W 'Li VI - _ _ " / / 1 ■ t : : i 1 I T. ` _ _ _ 1` I ' _ L ` 19622 ; S. 11 5TH STREET I I L ?IVY AVE — I2 �.. - -- SIDE SEWER LATERALS ARE�SHOW14 tIEREON FOR ILLUSTRA WE PURPOSES ONLY THE ACTUA[ LOCA11 1S SHALL:, WARY ANA SHALL __,< BE: DETERMINED': !N..THE, FIELD. > �. » �,- J 4 • f 1 r ` 3 . a 43 _ 76� Q t CONSTRUCTION NOTE& _ _ _ _ ' .s. N a. y " � ,' Q N? 4 ;1, -a... 4 CAUTON POTENTIAL UTILITY CONFLICT. CONTRACTOR N Y (POTHOLE) EXACT SEE ORDER OF WORK IN M OF E ST NG UTILITY. ME SP ECI F ICATIONS. F W ® INSTALL NEW 6' PVC SIDE SEWER FROM NEW 8' SE WER = PIPE TO THE R -O -W LINE. SEE DETAIL SHEET 40. FO ® DO NOT MAKE THIS CONNECTION UNTIL A SUCCESSFUL TEST NEW SYSTEM "" '--- --•-- H _ } - `, i 4 . . r . �. .>1 I DATE: FEB. 2004 I I A ,S "I :31735 H ,0L•,I I '1'S'3 :NMYa0I I CHECKED: J.U.H. I APPROVED: T.J.0. I a -�e� . ��..,,. :.,:;w ..:, :.. .. .._ e; ,. �.. •• a... i ? x .... ; ti m �, ..,, )£ ; a: a.. a.. 3., AAhV r . > t 5 . - yy�: a .m' y x :�:\ �C:° \ r s :', ^k� S 6 ,... : t * '1 w.. .x SV d M � '�.�: X 13 5S.i `f 2 —12 METRO SLUDGE FOR �.•..�,�:. :`'`• .` °"ape 7 a #�!Rt1 " _'S�+ . 1.�.. f , .•.. •. „ '' h s' : - CE VAIN �,...,... s F f • F F F {at 4 PVC - i .___... � . , _ r ___._..._ • - -.-._— T A_ _ .. - - - _. ._. .--- -- _ _. .-- -.�. - - _-_ '._-- t t 5 _ ' W S BEEN WITNESSED B HE CITY.E N .- ------ -- - --' -----' �:�..�.- _ - � ` \ ` ' \ O EXISTING WATER MAIN SHALL REMAIN IN SERVICE UNTIL A SUC CESSFUL PURITY AND PRESSURE TEST C4 THE NEW SYSTEM HAS BEEN WITNESSED BY THE CITY, AND THE EXISTING WATER SERVICES HAVE BEEN TR ED TO SHALL THE NEW SYSTEM. THE EXISTING SYSTEM SHALL THEN BE ABANDONED IN PLACE. ® CONTRACTOR SHALL FURNISH AND INSTALL NEW FIRE HYDRANT ASSEMBLY PER DETAR. SHEET 41. REMOVE EXISTING SIDEWALK AT THE ADJACENT EXPANSION O JOINT. REPLACE SIDEWALKS PER THE SPECIFICATIONS OddY tic --- - ._- ._._._ _ _�-- �. ' "- "-- ; ;g - - -- ' __ _._ ------ - � -_ �- --- -- -- ,E \\ -- - - - \\ \ 3170 -DRAG ` - --- .�_- _._._ _ _ � _- , t ; NOISY 3a a E c a 1 - • a_ �a')\ \ - \ ' 130 ......... ...... 125 120 115 ......... ..... 110 105 ......... ...... 100 .. +�. co - trt DUWAMISH RIVER ' z 5 I N In • .::':..... ......... ... ... ... ......... ......... ......... ......... ......... ...... .. .. ......... ......... ......... .................. ....... ......... .......•• ••- -••... . .... • -• ......... ......... ... ...... ......... ..... .. ......... ......... ......... ...... -.. 3D0'tr :B" :•per . . . 8 ry • in ......... ......... ....... ......••• . ....... • -••- ... to DUWAMISH ' 5 • XISTS146 N ... ......... ......... ......... •- •• -•... .. 975 0 a b n RIVER ~ z _ N In .. ....... . . . . . . . . ......... r .. .......•• ......... ••• .. ... .. .. .... ..... ......... • B SEWER PIPE % + I ° � + ' in ...... ........ • • - ... ...... .. ... ... ... .. • � aD 1 5 2 . : . . ...... 5 ... .......• .... ......... ........... »... .. ...... .. •........ .• W: ... ... .. x w • ..... .. ........ .. . S -. b o 4 : p7 RECONNECT EXISTING WATER SERVICE PER CONTRACTOR +z. 0 CONTRACTOR SHALL ADJUST EXISTING MANHOLES, BASINS, WATER METERS AND VALVE BOXES p CONNECT NEW 8' SEWER PIPE TO EXISTING MANHOLE. CONTRACTOR SHALL STABILIZE RESIST LATERAL LOADING. RECHANNEL MANHOI ® CONTRACTOR SHALL CONNECT NEW 8' SEWER EXISTING SEWER PIPE. USE FERNCO ADAPTOR ® REMOVE AND REINSTALL SIGN. FENCE OR REGt1RED. SEE SPECIFICATIONS. ..... ... ......... ... -..... .. I .� :: ... ...... • ..... .. ...... • .. ......... . ... .'1.. _ ... - DETAL CATCH TO GRAD» SA NITARY SEWER MANI OLE TO PIPE TO MAILI ... 'LJ ... ... 100 W 4,0;1 9YN0_�� .Mi 'IVNO1 , i ° • • • A :`7r' ° a % I m• CITY OF TUKWILA KING COUNTY WASHINGTON ALLENTOWN WATER AND SEWER SYSTEM IMPROVEMENTS PHASE II PLAN AND PROFILE .. ......... ......... ......... .................. 5 - 0.004 . .... .�>_ �. , ..<..ar, ve ..�,�., ..__o..., .... .. x. .... _ ......... ..... ......... ......... ......... ... ..... ... S. 0.004 ......... ......... ......... ......... ......... ......... ..... ... .... - .... ... ... ......... Yry .. 44 +00 43 +00 42 +00 41 +00 40 +00 0 F of +8 ;+ z r 1 • w o - ;w _ , W I t _ 1 d�O °On Og o, O 0 0 z o 0 F. 4 I d i �'• �' VI in ' ry 4 w I ' I I rcn v I:,: ... a• 4 i W °_'• SHEET: 33 OF: 44 JOB NO.: 00539 \N- PHASE2 DWG: PLAN32 r 20' TO' 0 � u Gray & Osborne, Inc SEE SHEET 37 I V, • r 3920 ,/ • ,; &Z./ /, i + 7 4 ' j °" r 1 S l� /f .a+ C„,,,, � S_115TH THE T — ___ =. � f - - t - - - -. - ,7,•7 _�_=� 45 _ , ' ■ ` / 1 3 i SIDE SEWER' uTER7us ARE SkowN NEi ACTUAL RY AND t . �... �:uEt naNFb S wTH HELD j _ _ _ o (----------_______I CONSTRUCTION NOTES. SEWER UNTIL NEW THE TO CATCH SEVIER V w-______________________ G _ Walk '"� - - -- =-• 8 1 ,� a "+ \� \ ": c `� < < J J., - .. "� s a rc • ;• °. k�x .: ''" y„� _ _`�.. �� - -._.a IIn •- -_,___ 46 _ ¢ 6 '• • F 'sM ° a F F � a `-• --�., H.7 W W0 TO VERIFY (POTHOLE) EXACT LOCATION AND DEPTH OF EXISTWG UTILITY. SEE ORDER OF WORK IN SPECIFICATIONS 0 INSTALL NEW 6 PVC SIDE SEWER FROM NEW r PIPE TO THE R-0-W LINE. SEE DETAIL SHEET 40. O DO NOT MAKE THIS CONNECTION UNTIL PURITY AND PRESSURE TEST OF THE E SUCCE MSFUL H BEEN WITNESSED BY THE CITY. EXISTING WATER MAN SHALL REMAIN I DATE: FEB. 2004 I I A ,S -.► :311/3$ I I 1.5'3 :I4MVaO I CHECKED: J.U.H. I I APPROVED: T.J.O. I —.. ,_� _ V et0 �,. �.a ����., `�'''''-----...„,,,s..„.__ .: \ 4 p VC �C �� �•. -� - `�•�. -`' � �. � . ---------------.. `- ••.. a a `�r.. • I 8 • .1- N �• . � .._ F ___ — ul 2 SO( ' T . .� � • S °' `"� F-- ---_�. F — _ — '— — — — U h ' - I -.._.� t� . . � _. ,-�._.._ -- .-, J ''���_ -_ -•. ' o — ``' — -- �_ - - __ == _`— N IN SERVICE A SUCCESSFUL PURITY AND PRESSURE TEST CF THE SYSTEM HAS BEEN WITNESSED BY THE AND 81 EXISTING WATER SERVICES TRAM ES HAVE BEEN TRANSFERED THE NEW SYSTEM. THE EXISTING SYSTEM SHALL THEN BE ABANDONED IN PLACE. ® CONTRACTOR SHALL FURNISH AND INSTALL NEW FIRE HYDRANT ASSEMBLY PER DETAIL SHEET 41. O REMOVE EXISTING SIDEWALK AT THE ADJACENT EXPANSION JOINT. REPLACE SIDEWALKS PER NE SPECIFICATIONS 7O RECONNECT EXISTING WATER SERVICE PER DETAL SHEET 42 ® CONTRACTOR SHALL ADJUST EXISTING MANHOLES. BASINS. WATER METERS AND VALVE BOXES TO GRADE. 9O CONNECT NEW 8' SEWER PIPE TO EXISTING SANITARY OddV 31Y0 NOtSIA3a _ "" I7. .- K F o�+ DUWAMISH RIVER Er F I ce -- ' ° V n :::::. 130 " 125 ••••• 120 ::::: 115 777.. 7777. .. 7777. 105 :: .... 100 7777. W I j o ; • I I 6+ 5 ° S = 00 V1 a .. ......... ........... » m i I 6 r a V1 •• ......... 7.77.7..: : :....... ......... .................. 7777» _ ».. »........_.... _...__.. 7777. _.. EXISTING GROUND _ ..... ............ • I 8 + • • 1 - N ......... __ ° I ` 5 DUWAMISH ......... ......... RIVER .. 7.._77... ... . ..... 7777 7777 7.. • .. _ MANHOLE. ' RESIST 10 CONTRACTOR EXISTING REMOVE ® REWIRED. 77777777. ......... 7 _.__. CONTRACTOR LATERAL SHALL SEWER AND REINSTALL RED. SEE ............._.... ......... »7»»777 .................. ... ...... . � ' SHALL LOADING. RECHANNEL CONNECT PIPE. USE SIGN. SPECIFICATIONS. ......... 7 7 7 7 ... _ . 7.77.7 STABILIZE MANHOLE MANHOLE AS NEW 8* SEWE R PIPE TO FERNCO ADAPT FENCE OR M/ 7.7777777 .. ......... .. 7 • • 7 ; . ' ;' . REWIRED. Tvv ...-.1 m t i b' "'it, " A 8 ' ` �� j sO t� . ....... ... , . .. , • • ......... . _ 7777 ... z :1 :; ; : :: .. :: :7777 ....... ......... ......... 7777. ... 1111 ,» W ...... ... 777»» » 110 7777. 7777.. ........ CITY OF TUKWILA KING COUNTY WASHINGTON ALLENTOWN WATER AND SEWER SYSTEM IMPROVEMENTS PHASE II PLAN AND PROFILE _ -- ava. , 7,,, 7 . =.t.f.:�. ' 7777... .. .. ... .: • • Sr0004 ... . :.. .. • ' • ' 47 +00 48 +00 45 +00 a 0 j h I •8 o. Z� N '^'^ _ 8 m ! 0 F WZ n J 1 O_ ,} m' N IJ I 11 Z1111 io oo ° X -- 'n n v W an d < _ = ` N u ~ i g + I ; W ^ 1 J • • t o -� "' I I inn �.h xoo a • i vi ui A IIffI Q 0 / f SHEET: 34 of-: 44 JOB NO.: 00530 \N-PHASE2 DWG: PLAN33 le 14. Boundary and Topographic Survey Reference Item 13 for the original Plan set. These Plans include all boundary and topographical information including structures, utilities, etc. All elevations shown on the Plans use a datum reference of 1929 USC & GS (adjusted 1947) + 100 feet. le 15. Location of Sensitive Areas See attached map for location of the sensitive areas within the general vicinity of the Project site. There are no sensitive areas within the Project limits. tor LEGEND: 1.2 CITY LIMITS E1OWL E2AB/USN PEMA PEMC PEMF PFOC PSSC R1OWV E1OWL - [E] Estuarine, [1] Subtidal, [OW] Open Water /Unknown Bottom (obs), [L] Subtidal E2AB /USN: [E] Estuarine, [2] Intertidal, [AB] Aquatic Bed / , [US] Unconsolidated Shore, [N] Regularly Flooded PEMA: [Pr Palustrine, [EM] Emergent, [A) Temporarily Flooded PEMC: [P] Palustrine, [EM] Emergent, [C] Seasonally Flooded PEMF: [P] Palustrine, [EM] Emergent, [F] Semipermanently Flooded PFOC: [P] Palustrine, [FO] Forested, [C] Seasonally Flooded PSSC: [P] Palustrine, [SS] Scrub - Shrub, [C] Seasonally Flooded R1OWV: [R] Riverine, [1] Tidal, [OW] Open Water /Unknown Bottom (obs), [V] Permenant -Tidal tri m Ida i 4 4 i ON 16. IOOYr. Flood Plain Boundary This requirement have been waived by the Planning Department. 17. Proposed Lot Lines No new lot lines will be established by this Project. OS 18. Building Footprint No buildings will be constructed within the permit area by this Project. 19. Fire Access Lanes No fire access lanes will be provided. This Project will be constructed within existing City owned right -of -way. 20. Sewer and Water Improvements Reference Item 13 for the original Plan set. The limits of the water and sewer improvements within the permit area are shown on the Plan set. The location of the remaining water and sewer improvements out the permit area are shown on the location map, see Item #8. is • • 21. Sewer and Water Availability Not Applicable 22. Storm Drainage New storm drainage facilities are planed to be constructed as part of the sidewalk improvements along 42 Avenue South. All existing storm drainage facilities currently know to serve the area will be incorporated into the design of the new storm drainage facility. The new storm drainage facilities (treatment only, no detention is anticipated), when designed, will consist of a vortex or swirl type treatment facility. a 23. Locate Nearest Fire Hydrant The work included within this Project consists of removing existing fire hydrants and replacing with new City approved fire hydrants throughout the Project limits 24. Schematic Road Design See attached detail indication the proposed roadway cross section. • CITY OF TUKWILA III I " I I I I , 111 1 III -�'' 12' -0" TRAVEL LANE ASPHALT CONCRETE 1=1' PAVEMENT 42ND AVENUE SOUTH C 42ND AVENUE - SOUTH 6" CONCRETE CURB AND GUTTER EX. POWER POLE 3' -6" MIN. AROUND POLES 12' -0" TRAVEL LANE TYPICAL CROSS SECTION NOT TO SCALE LANDSCAPE STRIP WIDTH VARIES 5' 0" ,SIDEWALK, I 3 I � I _ - - I = 1 1 - I I I I l 1I , I I I I = I I I III II I L il l I I I 1 11 -I I � I - 11 Cray 8z Osborne, CONSULTING ENGINEERS r N CITY OF TUKWILA 12' - 0" TRAVEL LANE III' I I i -I ASPHALT CONCRETE III PAVEMENT SOUTH 125TH STREET C SOUTH 125TH - STREET 12' -0" TRAVEL LANE TYPICAL CROSS SECTION NOT TO SCALE - I I I _ 111=111 1 11 =1 1 I.. ,II Ii c `Tray & Osborrie, CONSULTING ENGINEERS 25. Geotechnical Analysis A copy of the Geotechnical Analysis (completed April 29, 1996) is attached. di GEOTECHNICAL ENGINEERING STUDIES ALLENTOWN WATER AND SEWER IMPROVEMENT PROJECT TUKWILA, WASHINGTON HWA Project No. 96023 March 8, 1996 Revised April 29, 1996 Prepared for: Gray & Osborne, Inc. U +IONGWEST &ASSOCIATES,INC. March 8, 1996 Revised April 29, 1996 HWA Project No. 96023 Gray & Osborne, Inc. 701 Dexter Avenue North, Suite 200 Seattle, Washington 98109 Attention: Mr. Timothy Osborne, P.E. Subject: GEOTECHNICAL ENGINEERING STUDIES Allentown Water and Sewer Improvement Project Tukwila, Washington Dear Tim: In accordance with your request, Hong West & Associates, Inc. has performed geotechnical engineering studies for the proposed Allentown Water and Sewer Improvement project in Tukwila, Washington. The results of our studies are presented in the accompanying report. This revised report incorporates the project team's comments that were transmitted to us in your letter dated April 11, 1996, and completely replaces the previous draft report dated March 8, 1996. We appreciate the opportunity to provide geotechnical services on this project. Should you have any questions or comments, or if we may be of further service, please call. Sincerely, HONG WEST & ASSOCIATES, INC. S Steven R. Wright, P.E. SRW:RNB:srw Ralph N. Boirum, P.E. Geotechnical Engineer Vice President ITO - IONGWEST & AS SOCIATE S. IN C. Geotechnical Engineering Hydrogeology Geoenvironmental Services Testing & Inspection 19730 -64th Avenue West Lynnwood, WA 98036 -5904 Tel. 206 - 774 -0106 Fax. 206 - 775 -7506 Page 1.0 INTRODUCTION 1 1.1 GENERAL 1 1.2 PROJECT DESCRIPTION 1 1.3 AUTHORIZATION AND SCOPE OF WORK 2 2.0 FIELD AND LABORATORY INVESTIGATIONS 2 2.1 FIELD EXPLORATION 2 2.2 LABORATORY TESTING 2 3.0 SITE CONDITIONS 2 3.1 SURFACE CONDITIONS 2 3.2 GENERAL GEOLOGIC CONDITIONS 3 3.3 SUBSURFACE CONDITIONS 3 3.3.1 Soils 3 3.3.2 Groundwater 4 4.0 CONCLUSIONS AND RECOMMENDATIONS 4 4.1 GENERAL 4 4.2 EXCAVATION AND TEMPORARY SHORING 5 4.3 DEWATERING 6 4.4 PIPE SUPPORT 7 4.5 TRENCH BACKFILL 8 4.6 PIPE SETTLEMENT 9 4.7 BUOYANCY AND UPLIFT 9 4.8 PAVEMENTS 10 4.9 WET WEATHER EARTHWORK 11 5.0 UNCERTAINTY AND LIMITATIONS 12 REFERENCES 14 LIST OF TABLES TABLE OF CONTENTS Table 1. Alternative Flexible Pavement Sections 10 LIST OF FIGURES (FOLLOWING TEXT) Figure 1. Vicinity Map Figure 2. Site Plan Figure 3. Earth Pressures for Temporary Cantilever Shoring Figure 4. Earth Pressures for Temporary Braced Shoring Figure 5. Parameters for Calculating Uplift Appendix A: Field Investigation Figure B -1. Plasticity Chart Figures B -2 - B-4. Grain Size Distribution Curves IND APPENDICES Table of Contents (Continued) Figure A-1. Legend of Terms and Symbols Used on Exploration Logs Figures A-2 - A-11. Boring Logs BH -1 through BH -8 Appendix B: Laboratory Testing 96023RF.DOC n HONG WEST & ASSOCIATES, INC. liwi rw 1.1 GENERAL 1.2 PROJECT DESCRIPTION GEOTECHNICAL ENGINEERING STUDIES ALLENTOWN WATER AND SEWER IMPROVEMENT PROJECT TUKWILA, WASHINGTON 1.0 INTRODUCTION This report presents the results of subsurface explorations and geotechnical engineering studies for the proposed Allentown Water and Sewer Improvement project in Tukwila, Washington. The location of the site and the approximate limits of the project area are shown on the Vicinity Map and the Site Plan, Figures 1 and 2, respectively. The purpose of the geotechnical engineering studies was to evaluate the soil and groundwater conditions along the project alignment, and provide recommendations for the geotechnical aspects of the proposed improvements. Our understanding of the project is based on discussions with and design information provided by Messrs. Timothy Osborne and Jon Hinton with Gray & Osborne, Inc. We understand that the City of Tukwila plans to install new sanitary sewer and water lines for the area commonly referred to as "Allentown." The alignment of the new pipes will follow portions of existing surface streets located within the limits of the project area. The proposed sanitary sewer system improvements include installing several new 8 -inch diameter PVC pipes. The inverts of the new sanitary sewers will range from about 5 to 16 feet below the existing ground surface. The new sewers will be connected to Metro's existing Allentown trunk line at five separate locations. The proposed water system will consist of 8 -, 10 -, and 12 -inch diameter ductile iron pipes that will be installed within the construction corridors proposed for the new sanitary sewers. We anticipate that the proposed water mains will be installed about 3 to 4 feet below the existing ground surface. Other improvements associated with the project include installation of new manholes, and construction of a lift station near the intersection of 50th Avenue South and South 122nd Street. We understand the bottom of the proposed lift station will be about 15 feet below existing grade. buo The alignment for the proposed water and sewer system is located in the north - central portion of Tukwila, Washington, as shown on Figure 2. Topographically, the project area slopes slightly downward from west to east. Maximum relief across the project area is about 10 feet, with existing elevations, measured from the NGS Datum, ranging from March 8, 1996 Revised April 29, 1996 HWA Project No. 96023 1.3 AUTHORIZATION AND SCOPE OF WORK The work was performed in general accordance with our revised scope of work dated February 8, 1996. Written authorization for the work was subsequently given by Mr. Tim Osborne on February 8, 1996. 2.1 FIELD EXPLORATION On February 19 and 20, 1996, HWA personnel conducted a site reconnaissance and directed the drilling and sampling of eight exploratory borings, designated BH 1 through BH 8. They were drilled to depths ranging from 11' to 44 feet below the existing ground surface using a continuous flight hollow stem auger, under subcontract to HWA. The borings were located in the field by taping and/or pacing distances from existing site features. The approximate locations of the explorations are shown on Figure 2. The borings were monitored and logged by a geotechnical engineer from HWA. Soil samples were obtained at selected intervals and taken to our laboratory for further examination and testing. Field exploration methods are described, and logs of the borings are presented in Appendix A. 2.2 LABORATORY TESTING 2.0 FIELD AND LABORATORY INVESTIGATIONS Laboratory tests were conducted on selected soil samples to characterize certain engineering and index properties of the on -site soils along the project alignment. Laboratory testing included determination of natural moisture contents, plasticity characteristics (Atterberg Limits), and grain size distribution. Testing was conducted in general accordance with appropriate American Society for Testing and Materials (ASTM) standards, as discussed in Appendix B. The test results are presented in Appendix B, or displayed on the boring logs in Appendix A, as appropriate. 3.1 SURFACE CONDITIONS 3.0 SITE CONDITIONS 96023RF.DOC 2 HONG WEST& ASSOCIATES, INC. lire about 20 feet (120 feet; Metro Datum) near the intersection of South 124th Street and 42nd Avenue South to about Elevation 10 feet (110 feet; Metro Datum) near the intersection of South 112th Street and 51st Place South. March 8, 1996 Revised April 29, 1996 HWA Project No. 96023 Development along the project alignment is generally limited to single family housing; although several light industrial and commercial developments occupy portions of the neighborhood. Vegetation along the project alignment generally consists of cultivated lawns, trees, and shrubs associated with the surrounding residences. The larger undeveloped parcels along the alignment are typically covered with coniferous and deciduous trees with a moderate undergrowth of brush. 3.2 GENERAL GEOLOGIC CONDITIONS Geologic information for the project site was obtained from the map titled Preliminary Geologic Map of Seattle and Vicinity, Washington (Waldron, et al., 1962), published by the U.S. Geological Survey. According to Waldron, the project area is located in the Duwamish River flood plain where surficial soils consist primarily of geologically recent alluvium deposited by the Duwamish River. Alluvial deposits typically consist of stratified deposits of silt, sand, and some gravel. Alluvial deposits are typically soft/loose and moderately compressible. Waldron indicates that in areas, the alluvium may contain interbeds of peat and organic silt. 3.3 SUBSURFACE CONDITIONS 3.3.1 Soils Based on the subsurface conditions observed in our exploratory borings, the project alignment appears to be underlain by alluvial deposits. In areas, a thin layer of fill was observed above the alluvium. Each of these units are discussed separately below in the order of deposition, beginning with the most recently deposited. The generalized depth ranges given are for descriptive purposes only and may not represent actual subsurface conditions at a given location. The attached summary logs (Figures A -2 through A -11) provide more detail relative to soil conditions observed at specific locations and depths. • Fill - Fill was encountered at the ground surface in borings BH 1, BH -2, BH-4, and BH -5. The fill observed in these explorations extended to depths ranging from about 2 to 6 inches below the existing ground surface. Where encountered, the fill was observed directly over alluvial deposits. In general, the fill consisted of either medium dense, silty gravel or loose, 5/8 -inch minus crushed rock. It appeared to be pavement subbase material. 96023RF.DOC 3 HONG WEST & ASSOCIATES, INC. • Alluvium - Alluvium was encountered at the ground surface in borings BH -3, BH -7, and BH -8; directly below the fill in borings BH -1, BH -2, BH-4, and BH -5; and directly below the pavement section in boring BH-6. The alluvium generally consisted of very loose to medium dense sand and silty sand with Yrsi layers of very soft to medium stiff sandy silt and silt. A layer of very soft organic silt was observed in boring BH -3, between about 9' /z and 12 feet below Y.. the existing ground surface. The alluvial deposits were not fully penetrated and extended to the full depth of our explorations. March 8, 1996 Revised April 29, 1996 HWA Project No. 96023 3.3.2 Groundwater Groundwater was observed in all of the borings completed for this study, at depths ranging from about 21/2 to 9 feet below the existing ground surface. It should be noted that observations of groundwater levels during drilling can be misleading, as the actual groundwater level is often somewhat higher than appears in the boring. Consequently, the localized water table may actually be several feet higher than indicated during the exploration program. The groundwater conditions reported on the boring logs are for the specific dates and locations indicated, and therefore may not necessarily be indicative of other times and/or locations. Furthermore, it is anticipated that groundwater conditions will vary depending on the weather, local subsurface conditions, the level of the nearby Duwamish River, and other factors. 4.1 GENERAL 96023RF.DOC 4.0 CONCLUSIONS AND RECOMMENDATIONS The results of our explorations indicate that the proposed pipelines and lift station will be installed within recent alluvial soils. The alluvium generally consists of loose to medium dense sands and sandy silts. In our opinion, these soils will provide suitable foundation support for the proposed pipelines, manholes and lift station. In some areas, peat or very soft clayey silts could be encountered at pipe grade. Where present these unsuitable materials should be overexcavated (to a maximum depth of about 3 feet), and replaced with 1 -1/4- inch -minus crushed rock, (WSS 9- 03.3(9). In general, pipe installation should be in accordance with appropriate sections of the 1994 WSDOT Standard Specifications for Road, Bridge, and Municipal Construction (WSDOT Standard Specifications). 4 HONG WEST & ASSOCIATES, INC. bur IWO March 8, 1996 Revised April 29, 1996 HWA Project No. 96023 The inverts of the proposed water and sewer mains are anticipated to vary from about 3 to 16 feet below the existing ground surface. The regional groundwater table within the alluvial soils was observed between about 21/2 and 9 feet below the ground and may be higher depending on the weather and other factors. Thus a significant portion of the required excavations may extend below the regional groundwater table, and dewatering will be required. Where excavation is required more than 2 or 3 feet below the groundwater level, dewatering from within the excavation may not be sufficient and wells or well points may be required. In general the soil conditions are favorable for dewatering by conventional construction -type dewatering wells; however, in some areas, a layer of silt between elevations 110 and 105 may be continuous enough to restrict the effectiveness of wells. Where this occurs, more closely spaced wells or well points could be required. The areal extent and depth of dewatering must be controlled to prevent settlement of existing nearby structures. Trench boxes should be suitable for support of trench excavations for most of the proposed pipelines. Shoring may be required near settlement sensitive areas and where the excavations may be open for an extended period of time, such as at the proposed lift station. Recommendations addressing these issues are presented below, in addition to recommendations regarding pipe bedding, trench backfill, pipe settlement, buoyancy and uplift, pavements, and wet weather earthwork. 4.2 EXCAVATION AND TEMPORARY SHORING Based on the soil conditions observed in our explorations, we anticipate that the on -site soils can be excavated with conventional excavating equipment, such as backhoes and trackhoes. Maintenance of safe working conditions, including temporary excavation stability, should be the responsibility of the contractor. Temporary excavations in excess of 4 feet in height must be sloped in accordance with Part N of Washington Administrative Code (WAC) 296 -155, or be shored. The existing fill and alluvial soils classify as Type C Soil and may be inclined no steeper than 11/2H:1V (horizontal to vertical) according to WAC 296 -155. Flatter slopes may be required where groundwater flow is present. Dewatering may be required to lower the groundwater table below the base of the excavation. Vibrations created by traffic and construction equipment may cause caving and raveling of the trench walls. In such an event, lateral support for the trench walls should be provided by the contractor to prevent loss of ground support and possible distress to previously installed utilities and/or the adjacent roadway. General recommendations for design and implementation of temporary shoring and bracing systems are presented below. 96023RF.DOC 5 HONG WEST & ASSOCIATES, INC. March 8, 1996 Revised April 29, 1996 HWA Project No. 96023 • Trench boxes should provide suitable support of excavations in the native alluvial soils, provided the groundwater level is below the base of the excavation and settlement sensitive structures or utilities are not situated immediately adjacent to the excavation. • Where a trench box is used to support excavations in the alluvial soils, one or both sides of the trench is likely to cave against the box. The caving may extend out on either side of the trench for a distance approximately equal to the depth of the trench. Additional bracing or sheeting may be required where the near edge of the trench will be closer than about 1.5 times the trench depth to settlement sensitive structures or utilities. • Excavations that will be open for an extended period of time, such as at the proposed lift station, may require shoring. The shoring system should be designed and constructed to support lateral loads exerted by the retained soil mass. Recommended lateral earth pressures for design of temporary cantilevered sheetpile and soldier pile and lagging walls are presented in Figure 3. Recommended lateral earth pressures for design of temporary braced shoring systems are presented in Figure 4. The design pressures presented in Figures 3 and 4 assume the excavations have been dewatered and do not include hydrostatic pressures. In addition, any surcharge loads from construction equipment, construction materials, excavated soils, or vehicular traffic on adjacent roadways should be included in the shoring design. • Precautions should be taken during removal of the temporary shoring system, to minimize disturbance of the pipe, underlying bedding materials, and native soils. 4.3 DEWATERING A significant portion of the excavations for the pipelines and lift station will extend below the groundwater level. The alluvial deposits are relatively permeable, and substantial flow into the excavations may occur where excavations extend more than 2 or 3 feet below the groundwater level. Groundwater seepage will tend to destabilize excavation slopes and increase lateral loads on shoring systems. In addition groundwater flowing into the excavation can cause "quick" conditions. Under "quick" conditions, the relative density of the sandy alluvial soils will be reduced, resulting in increased pipe settlement during and after construction. Because of these impacts we recommend that dewatering be accomplished so that 96023RF.DOC 6 HoNO WEST & ASSOCIATES, INC. March 8, 1996 Revised April 29, 1996 HWA Project No. 96023 excavation and placement of the pipe and pipe bedding and backfill materials is completed in the dry. In our opinion a combination of wells or well points and sumps will be required to effectively dewater excavations which extend more than a few feet below the groundwater level in the alluvial soils. Conventional 24 to 36 -inch diameter wells with slotted casings and properly graded filter sand and gravel should be capable of dewatering most of the alignment. In some areas, a layer of silt between about elevation 110 to 105 (refer to the logs of borings BH -2, BH -3, BH-4, BH -5, and BH -7) may be continuous enough to limit the ability of wells to dewater the soil above the silt layer. Additional sumps or well points could be required in these areas. Extended dewatering for the lift station and utility trench excavations could result in a lowering of the water table over a large area which would cause settlement of the underlying alluvial soils. The magnitude of the settlement and its lateral extent would depend on the amount of change in the water level; the length of time the water level was lowered; and the compressibility, thickness, and permeability of the underlying soils. If wells are used to facilitate installation of the proposed improvements, HWA should review the dewatering system design to evaluate potential impacts. The extent of dewatering should be monitored during construction to minimize the potential for settlement damage. To the extent possible considering the potential for settlement of adjacent structures, dewatering wells should be operated continuously for as long as they are needed in a given area. Turning the wells off at night and turning them back on the next day causes rapid drawdown conditions in the soils and tends to increase caving and sloughing of excavation slopes. 4.4 PIPE SUPPORT The loose to medium dense sands and medium stiff sandy silts expected at the invert elevations of the proposed pipelines over the majority of the alignment will generally provide suitable support for the pipes, provided the trench excavation is properly dewatered. If soft silt, organic soils, or otherwise unsuitable material is encountered in the base of the excavation, we recommend that these materials be removed and replaced with compacted 1 -1/4- inch -minus crushed rock. The over - excavation to remove the unsuitable soils should extend to either side of the pipe a distance equal to the depth of over - excavation beneath the pipe, to a minimum of 3 pipe diameters. Over - excavation to remove unsuitable materials in the bottom of the trench should generally be limited to a depth of 3 feet. It may be beneficial to use a geotextile filter fabric to separate the pipe bedding materials from the underlying soft subgrade soils. 96023RF.DOC 7 HONG WEST & ASSOCIATES, INC. .r March 8, 1996 Revised April 29, 1996 HWA Project No. 96023 General recommendations relative to the bedding of the proposed underground utility pipelines include: • Pipe bedding for the proposed sanitary sewer mains should meet the gradation requirements for Bedding Material for Flexible Pipe, Section 9 -03.16 of the WSDOT Standard Specifications. Bedding material for the proposed ductile iron water mains may consist of select native granular soil that is less than 2 inches in maximum dimension and is free of organics and other debris. • Prior to installation of the pipe, the pipe bedding should be shaped to fit the lower portion of the pipe exterior with reasonable closeness to provide continuous support along the pipe. • Backfill around the pipe should be placed in layers and tamped around the pipe to obtain complete contact. Pipe bedding material should be used as trench backfill to at least 12 inches over the top of the pipe, for the full width of the trench. In areas where a trench box is used, the bedding material should be . placed before the trench box is advanced. • Where a trench box is used, we recommend that pipe restraint in the form of a cable and winch system be used inside the pipe so that the joints of previously laid pipe are not pulled apart as the trench box is advanced. 4.5 TRENCH BACKFILL In paved roadways, we recommend that trench backfill consist of select granular material meeting the specifications for Bank Run Gravel for Trench Backfill, Section 9 -03.19 of the WSDOT 1994 Standard Specifications. The fines content of the trench backfill may be increased somewhat during weather conditions if the soils are not too wet for proper compaction. The relatively clean native sands in the project area would generally be suitable for use as backfill in the lower portion of the trench provided it is allowed to drain prior to placement. The silty sands and silts will generally be too wet for proper compaction. Trench backfill within 3 feet of the pavement subgrade, should consist of clean sand and gravel. Most of the native soils will not be clean enough for use as backfill in the upper 3 feet of trench. The silt and organic portions of the native soils are not suitable for trench backfill at any depth. 96023RF.DOC S HONG WEST & ASSOCIATES, INC. March 8, 1996 Revised April 29, 1996 ,., HWA Project No. 96023 low ler Asphaltic concrete pavement may be pulverized and blended with the recommended roadway ballast and trench backfill materials, provided the asphalt content by weight does not exceed 10 percent, and the appropriate gradation, sand equivalent, and fracture requirements outlined in the WSDOT Standard Specifications are met. For the purpose of this report, asphalt content is based on the weight of asphalt particles retained on all screens 1/4-inch and larger. We recommend that trench backfill placed more than 3 feet below subgrade elevations be compacted to at least 90 percent of its maximum dry density (MDD) as determined in accordance with ASTM D 1557. The upper 3 feet of the backfill should be compacted to at least 95 percent to provide an adequate subgrade for the overlying pavement section. Trench backfill compacted to 95 percent can be expected to settle about '/2 percent of its thickness. Backfill compacted to 90 percent could settle about 1 percent of its thickness. Increasing compaction requirements (to 92 or 95 percent) will reduce but not eliminate the settlement of trench settlement. We recommend waiting as long as possible (up to a year) to allow most of the post construction settlements to occur before repaving. In areas where several inches of backfill settlement can be tolerated, such as landscaped areas, backfill compaction could be reduced to 85 percent, except the upper 2 feet which should be compacted to at least 90 percent. 4.6 PIPE SETTLEMENT Construction of the proposed pipelines will result in little or no increase in soil bearing stress, and as a result, little post construction pipe settlement is expected. Disturbance of the bearing soils for the proposed pipes during construction could result in increased settlement. If the subgrade soils are disturbed during construction, the bottom of the trench should be over - excavated and replaced as described in Section 4.4. The recommendations for over - excavation and replacement of unsuitable materials at pipe grade are intended to minimize such settlements. 4.7 BUOYANCY AND UPLIFT Buried vaults and manholes will be subjected to upward buoyancy forces when the groundwater level around the structure is higher than the fluid level inside the structure. Such structures should be designed to resist this upward force and to prevent possible heave and cracking of their bottoms. The weight of the structure and friction along the sides of the vaults will resist uplift forces as illustrated in Figure 5. The uplift resistance of a structure can be increased by extending the base of the structure, as shown on the right side of Figure 5. 96023RF.DOC 9 HONG WEST & ASSOCIATES, INC. Iwo 0 March 8, 1996 Revised April 29, 1996 HWA Project No. 96023 4.8 PAVEMENTS New pavement will be required over portions of the backfilled trenches and in some areas, the entire road will be resurfaced rather than repaired. We understand that the design team is interested in using Asphalt Treated Base (ATB) as a base course for South 124th Street, South 122nd Street, and 42nd Avenue South, to allow traffic back on the street prior to placing Asphaltic Concrete Pavement (ACP). Based on the results of our subsurface investigation and our experience on sites with similar subgrade soils, it is our opinion that flexible pavements constructed at the site on a subgrade that has been compacted to a dense and unyielding condition, or on properly compacted structural fill, could be designed for a California Bearing Ratio of about 10 percent (Resilient Modulus of about 15,000 pounds per square inch). Utilizing AASHTO design methodology (AASHTO, 1993) and limited traffic information provided by Gray & Osborne, the alternative flexible pavement sections described below in Table 1 were developed for the repaired and/or reconstructed portions of the residential streets, South 122nd Street, South 124th Street, and 42nd Avenue South. Table 1. Alternative Flexible Pavement Sections ACP, Class B ATB CSBC u ecific t Recommeric nunum . r. hie fan esses mc 2 N/A 7 4 N/A 8 3 3 3 N/A 6 9 2 9 -03.8 3 9 -03.6 7 9 -03.9(3) ACP ATB CSBC = Asphalt Concrete Pavement, Class B. = Asphalt Treated Base. = Crushed Surfacing Base Course, compacted to 95% of maximum dry density determined using ASTM D 1557 as the standard. The upper 2 inches of Crushed Surfacing Base Course may be replaced by 'h -inch minus Crushed Surfacing Top Course (CSTC). WSDOT = Washington State Department of Transportation, 1994, Standard Specifications for Road, Bridge, and Municipal Construction. The proposed alternative pavement sections were evaluated to estimate their capacities in total equivalent 18 -kip single axle loads (ESALs). Total capacities of about 10,000, 980,000, and 250,00 ESALs were estimated for the residential streets; South 124th Street; and 42nd Avenue South and South 122nd Street, respectively. The estimated ESALs assume 2 percent heavy trucks (FHWA Class 5 or greater), 3 percent annual growth, and 96023RF.DOC 10 HONG WEST & ASSOCIATES, INC. March 8, 1996 Revised April 29, 1996 HWA Project No. 96023 a 20 year analysis period. For the residential streets, '/2 percent heavy trucks was assumed. Based on this information and the results of our analyses, the proposed alternative pavement sections appear to be adequate for the anticipated traffic conditions. If the anticipated traffic conditions are significantly different from that described above, HWA should be notified for review of the pavement design, and revision of such if necessary. The native subgrade soils are generally frost susceptible. Frost protection for pavements normally require that a total of at least 12 inches of pavement, base course, and/or granular sub -base be provided between the native subgrade soils and the top of the pavement. For residential streets with relatively light traffic, a total pavement section of at least 9 inches may be adequate; however, this 9 inch pavement section would not necessarily provide suitable protection from frost penetration and it may be necessary to apply heavy load restrictions for several days after an extended period of below - freezing weather. Heavy load restrictions on residential streets may be of little consequence since the normal traffic is relatively light. The pavement sections for residential and heavy • traffic areas recommended in Table 1 have been increased to 9 and 12 inches, respectively. Adequate surface gradients and drainage systems should be incorporated in the final grading design such that surface runoff is permanently directed away from paved areas and into roadside ditches or other controlled drainage devices. If roadside ditches are used, a slope with a maximum inclination of 2H:1V (Horizontal:Vertical) should be maintained between the edge of the pavement structure and the bottom of the ditch. This recommendations is based on geotechnical considerations only; safety considerations may necessitate increasing the horizontal distance between the ditch and the edge of pavement. 4.9 WET WEATHER EARTHWORK If earthwork is to be performed or fill is to be placed in wet weather or under wet conditions when control of soil moisture content is not possible, the following recommendations should apply: • Earthwork should be accomplished in small sections to minimize exposure to wet weather. Excavations or the removal of unsuitable soil should be followed immediately by the placement and compaction of a suitable thickness of clean structural fill, as described below. The size of construction equipment used may have to be limited to prevent soil disturbance; • Material used as trench backfill should consist of clean, granular soil, of which not more than 5 percent by dry weight passes the U.S. Standard No. 200 sieve, 96023RF.DOC 11 HONG WEST & ASSOCIATES, INC. March 8, 1996 Revised April 29, 1996 HWA Project No. 96023 • The ground surface in the construction area should be sloped and sealed with a smooth drum roller to promote rapid runoff of precipitation, to prevent surface water from flowing into excavations, and to prevent ponding of water, • No soil should be left uncompacted so it can absorb water. Soils which become too wet for compaction should be removed and replaced with clean �., granular materials; and Li L We have prepared this report for the City of Tukwila and the Gray & Osborne design team for use in design of a portion of this project. This report should be provided in its entirety to prospective contractors for bidding and estimating purposes; however, the conclusions and interpretations presented herein should not be construed as a warranty of the subsurface conditions. Experience has shown that soil and groundwater conditions can vary significantly over small distances. Inconsistent conditions can occur between explorations that may not be detected by a geotechnical study. If during future site operations, subsurface conditions are encountered which vary appreciably from those descr herein, HWA should be notified for review of the recommendations of this report, and revision of such if necessary. If there is a substantial lapse of time between submission of this report and the start of construction, or if conditions change due to construction operations along the project alignment, it is recommended that this report be reviewed to determine the applicability of the conclusions and recommendations considering the changed conditions and time lapse. This report is issued with the understanding that it is the responsibility of the owner, or the owners' representative, to ensure that the information and recommendations contained herein are brought to the attention of the appropriate design team personnel and incorporated into the project plans and specifications, and the necessary steps are taken to `' see that the contractor and subcontractors carry out such recommendations in the field. Yra based on wet sieving the fraction passing the'/. inch sieve. The fines should be non - plastic; • Excavation and placement of fill should be observed on a full time basis by a person experienced in wet weather earthwork to verify that all unsuitable materials are removed and suitable compaction and site drainage is achieved. The above recommendations for wet weather earthwork should be incorporated into the contract specifications. 5.0 UNCERTAINTY AND LIMITATIONS 96023RF.DOC 12 HONG WEST & ASSOCIATES, INC. it March 8, 1996 Revised April 29, 1996 HWA Project No. 96023 YEW tor Ions di HWA is available to monitor construction to evaluate soil and groundwater conditions as they are exposed and verify that pipe bedding, backfilling and compaction are accomplished in accordance with the specifications. Within the limitations of scope, schedule and budget, HWA attempted to execute these services in accordance with generally accepted professional principles and practices in the fields of geotechnical engineering and engineering geology at the time the report was prepared. No warranty, express or implied, is made. The scope of our work did not include environmental assessments or evaluations regarding the presence or absence of wetlands or hazardous or toxic substances in the soil, surface water, or groundwater at this site. This firm does not practice or consult in the field of safety engineering. We do not direct the contractor's operations, and cannot be responsible for the safety of personnel other than our own on the site. As such, the safety of others is the responsibility of the contractor. The contractor should notify the owner if he considers any of the recommended actions presented herein unsafe. 0.0 We appreciate this opportunity to be of service. Sincerely, HONG WEST & ASSOCIATES, INC. Steven R. Wright, P.E. Geotechnical Engineer SRW:RNB:srw 96023RF.DOC Ralph N. Boirum, P.E. Vice President 13 HONG WEST & ASSOCIATES, INC. "' March 8, 1996 Revised April 29, 1996 HWA Project No. 96023 REFERENCES American Association of State Highway and Transportation Officials, 1993, AASHTO 96023RF.DOC Guide for Design of Pavement Structures. Waldron, H.H., B.A. Liesch, D.R. Mullineaux, and D.R. Crandell, 1962, Preliminary Geologic Map of Seattle and Vicinity, Washington, U.S. Geological Survey, Miscellaneous Geologic Investigations, Map 1-354. Washington State Department of Transportation/American Public Works Association, 1994, Standard Specifications for Road Bridges, and Municipal Construction: 14 HONG WEST & ASSOCIATES, INC. MI1 ' HONG `IYES &ASSOCIATESsINC. T cVCAMANWAVIaNITYMWG ALLENTOWN WATER AND SEWER IMPROVEMENT PROJECT VICINITY MAP PROJECT NO.:96023 FIGURE 1 REFERENCE: Base map provided by GRAY & OSBORNE, INC. C: \JOBS 96023 \96023001.DWG A .d. 111111 --- 1.1.1.1. Al111g1 I II:111 illl�!!!!1!l11111!I!�!�1!1 - ..C -,. : elms IMIIDMMI, Nib. SIMI MO -■■ —. _moo_ MIR NUM MINI a -i -- �I� — IIMMIIIMI -- -I. Immimmili 11111111111M awn ma: = L. - — - s r ---' 1. ._. -� —a • �� �� —_ - -_ -- -- IMNI al, UIIIII IIIIIIIIIIIIIIIII 11111111 IIIIIIII 11111111 111. A d I 01 I 6A mom MEM Ewe MINI __ �- ININI Nor -- nun Illlilll�i► H -4 iilltllllilltllI1 i ItiiIII1111111111�, 1/4� ��, • ��, BH -2 BH -1 Y11�i� HONGWEST k ASSOCIATES, ING 0' 200' 400'600' LEGEND ALLENTOWN WATER AND SEWER IMPROVEMENT PROJECT SCALE: 1' =600' 1200' - BH -1 BORING DESIGNATION AND APPROXIMATE LOCATION SITE PLAN PROJECT NO.: 96023 FIGURE: 2 ww owe rr W. H DESIGN — - `---- - GZOUNDWATER LEVEL NOTES: [Kali'D I Ka3H Kp1rD CANTILEVERED SOLDIER PILE OR SHEEIPILE WALL Ka = .33 for level backsiope = 301 Ka = .54 for 2H:1V backsiope Kp = 3.0 if 115pcf 3' = 53pcf D 1. Recommended lateral earth pressure values assume subsurface soils consist of loose fill and alluvial deposits. 2. It is assumed that drainage is provided so that water pressures do not act on wall above bottom of excavation. 3. The coeffients of active and passive pressure do not include the effects of wall friction 5. Surcharge loads should be added to the active pressure where appropriate. 6. A factor of safety has not been applied to the recommended earth pressure values. BOTTOM OF EXCAVA11ON 4. For soldier walls, the active and passive pressure coefficients can be assumed to act over three times the pile width below the base of the excavation. Y I�fi` BONGWEST & ASSO CIATES, ING �•• c ' cL1w►N\STD \CANTILVR.DwG ALLENTOWN WATER AND SEWER IMPROVEMENT PROJECT EARTH PRESSURES FOR TEMPORARY CANTILEVER SHORING PROJECT NO.: 96023 FIGURE 3 L ids tre Oar DESIGN Z — GROUNDWATER = LEVEL NOTES: PH BRACED SHEETING OR SOLDIER PILE AND LAGGING WALL Kp0'D P = Lateral Pressure Coefficient = 25pcf Kp = 3.0 3' = 53pcf BOTTOM OF EXCAVATION D 1. Recommended lateral earth pressure values assume subsurface soils consist of loose GI and alluvial deposits. 2. It is assumed that drainage is provided so that water pressures do not act on wall above bottom of excavation. 3. For soldier plies, the passive pressure can be assumed to act over three times the pile width. 4. Surcharge loads should be added to the active pressure where appropriate. 5. Embedment (D) should be determined by summation of moments below the lowest brace. 6. A factor of safety has not been applied to the recommended earth pressure values. gE1 BONGWEST & ASSOCIATES. INC. CTwN\SSDVIRACED.DWG ALLEN TOWN WATER AND SEWER IMPROVEMENT PROJECT EARTH PRESSURES FOR TEMPORARY BRACED SHORING PROJECT NO.:96023 FIGURE 4 W WB FB PROPOSED STRUCTURE ■7■ 1 ' 1% ' WY t DESIGN GROUNDWATER LEVEL p i r; H SYMBOL B = Width of extended base in feet (2 —foot minimum required) = Structure weight in kips = Total soil weight above base in kips = Buoyant force in kips = Unit weight of water x volume of structure below design groundwater level L = Perimeter around base of wail in feet Fsw = Shearing resistance of soil to wall = 0.011H1 + 0.0231-11 H2 + 0.005112 (in kips per foot of wall) Fss = Shearing resistance of soil = 0.0171.0 + 0.034Hr 112 + 0.008112 (in kips per foot of wall) PASSIVE SOIL WEDGE 1 • Buoyant force could result in high bending moments in slab Refer to text for additional clarification regarding calculating uplift resistance. . �. ∎7/ v a WB 1 I- --1 B ASSUMPTIONS Soil Unit Weight = 120 pcf Soil Friction Angle = 36 Wall /Soil Friction Angle = 25' At —rest Pressure Coefficient = 0.41 Buoyant Soil Unit Weight = 58 pcf 114.E Factor of Safety = W + Fsw L Fs (without extended base) Factor of Safety = W + WB + F L FB (with extended base around perimeter of structure) Uffl BO N G WES T k ASSOCIATES, INC. \ACLIWN`SiD \UPUFr.OWG ALLENTOWN WATER AND SEWER IMPROVEMENT PROJECT PARAMETERS FOR CALCULATING UPLIFT RESISTANCE PROJECT NO.: 96023 RGURE 5 APPENDIX A FIELD INVESTIGATION APPENDIX A FIELD INVESTIGATION Subsurface conditions were explored on February 19 and 20, 1996, under the full-time observation of a HWA engineer. The exploration work consisted of drilling and sampling eight borings (BE!-! through BH -8) at locations selected by Gray and Osborne, Inc. The borings were advanced to depths ranging from about 11% to 44 feet below the existing ground surface. The boreholes were located approximately in the field by taping and/or pacing distances from known site features and plotted on the Site Plan (Figure 2). A legend to the terms and symbols used on the boring logs is presented on Figure A-1. Summary borehole logs are presented on Figures A-2 through A -11. Geotechnical drilling was performed by Geoboring & Development, Inc. of Puyallup, Washington under subcontract to HWA. The borings were drilled with a truck- mounted, Mobile B -61 drill rig advancing a 4 -inch I.D., continuous flight hollow stem auger. Upon completion of drilling, the borings were backfilled with cuttings and bentonite chips. Explorations located in areas of existing pavement were repaired using an asphalt patch. At each boring location, Standard Penetration Test sampling was performed in general accordance with ASTM D 1586, using a 2 -inch outside diameter split -spoon sampler and a 140 -pound hammer. During the test, samples were obtained by driving the sampler 18 inches into the soil with a hammer free - falling 30 inches. The number of blows required for each 6 inches of penetration was recorded. The Standard Penetration Resistance ( "N- value ") of the soil was calculated as the number of blows required for the final 12 inches of penetration. If a total of 50 blows was recorded within a single 6 inch interval, the test was terminated, and the blow count was recorded as 50 blows for the number of inches of penetration. This resistance, or N- value, provides a measure of the relative density of granular soils and the relative consistency of cohesive soils. Soil samples obtained from the split - barrel sampler were classified in the field and representative portions were placed in air - tight, plastic bags. These soil samples were taken to our Lynnwood, Washington laboratory for further examination and testing. In addition, pertinent information including soil sample depths, stratigraphy, soil engineering characteristics, and groundwater occurrence was recorded. The stratigraphic contacts shown on the individual borehole logs represent the approximate boundaries between soil types; actual transitions may be more gradual. The soil and groundwater conditions depicted are only for the specific dates and locations reported, and therefore, are not necessarily representative of other locations and times. 96023RF.DOC A -1 HONG WEST & ASSOCIATES, INC. MAJOR DIVISIONS GROUP DESCRIPTIONS Coarse Grained Sods More than 50% Retained on No. 200 Sieve Size Grovel and Gravelly Sods More than 50% of Coarse Fraction Retained on No. 4 Sieve Clean Grave (je or no fines) •a i GW Well— graded GRAVEL ^ t'�I •.'.' G P Poorly— graded GRAVEL Gravel with fines (appreciable amount of fines) I GM Silty GRAVEL , 4 { :' GC Clayey GRAVEL Sand and Sandy Soils 507. or More of Coarse Fraction Passing on No. 4 Sieve Clean Sand (tittle or no Fines) .., SW Well—graded SAND Medium Stiff SP Poorly — graded SAND Sand with Fines (appreciable amount of fines) • i '. SM Silty SAND :. SC Clayey SAND Grained Soils . SO% or More Passing No. 200 Sieve Size Silt and Liquid Limit Clay Less than 50% II Fine ML SILT / CL Lean CLAY Hard OL Organic SILT /Organic CLAY. Silt Ld Limit and Liquid Cloy 50% or More MN Elastic SILT. CH Fat CLAY OH Organic Silt /Organic Clay. Highly Organic Soils it mi PT PEAT COHESIONLESS SOILS COHESIVE SOILS Density N (blows /ft) Relative Approximate Relative Density(z) C ry N bows ft ( /) Approximate Undrained Shear Strength (psf) Very Loose 0 to 4 0 — 15 Very Soft 0 to 2 <250 Loose 4 to 10 15 — 35 Soft 2 to 4 250 — 500 Medium Dense 10 to 30 35 — 65 Medium Stiff 4 to 8 500 — 1000 Dense 30 to 50 65 — 85 Stiff 8 to 15 1000 — 2000 Very Dense over 50 85 — 100 Very Stiff 15 to 30 2000 — 4000 Hard over 30 >4000 COMPONENT SIZE RANGE Boulders Larger than 12 in Cobbles 3 in to 12 in Gravel 3 in to No 4 (4.5mm) Coarse grovel 3 in to 3/4 in Fine gravel 3/4 in to No 4 (4.5mm) Sand No. 4 (4.5 mm) to No. 200 (0.074 mm) Coarse sand No. 4 (4.5 mm) to No. 10 (2.0 mm) Medium sand No. 10 (2.0 mm) to No. 40 (0.42 mm) Fine sand No. 40 (0.42 mm) to No. 200 (0.074 mm) Silt and Clay Smaller than No. 200 (0.074mm) DESCRIPTIVE TERMS RANGE OF PROPORTION Trace 0 — 5% Few 5 — 10% Little 15 — 25% Some 30 — 45% Mostly 50 — 100% to arr Sow two Woo Urn Iwo tow RELATIVE DENSITY OR CONSISTENCY VERSUS SPT N —VALUE TEST SYMBOLS ASTM SOIL CLASSIFICATION SYSTEM COMPONENT DEFINITIONS NOTES: Soil classifications presented on exploration logs are based on visual and laboratory observation in general accordance with ASTM 0 2487 and ASTM 0 2488. Soil descriptions ore presented in the. following general order. Density/consistency. color. 1'roport and angularity of of any) CROUP NA.1a. additions to additional comments. map name I � RETAT10 A• moisture content. Please refer to the discussion in the report text os well as the exploration logs for a more complete description of subsurface conditions. GS Grain Size Distribution %F Percent Fines CN Consolidation TX Triaxiol Compression UC Unconfined Compression OS Direct Shear K Permeability PP Pocket Penetrometer Approximate Compressive Strength (tsf) TV Torvane Approximate Shear Strength NO CBR California Bearing Ratio MD Moisture /Density Relationship PID Photoionization Device Reading AL Atterberg Limits: PL Plastic Limit LL liquid Limit I 0 0 SAMPLE TYPE SYMBOLS 2.0' OD Split Spoon (SPT) (140 lb. hammer with 30 in. drop) Shelby Tube 3.0' OD Split Spoon with Bross Rings Small Bag Sample Large Bog (Bulk) Sample Core Run Non— standard Penetration Test (with split spoon sampler) COMPONENT PROPORTIONS GROUNDWATER WELL COMPLETIONS Locking Well Security Casing Well Cap Concrete Seal Well Casing Bentonite Seal Groundwater Level (measured at time of drilling) Groundwater Level (measured in well after water level stabilized) Slotted Well Casing Sand Backfll MOISTURE CONTENT DRY MOIST WET Absence of moisture, dusty. dry to the touch. Damp but no visible water. Visible free water. usually sod is below water table. ♦IONGWEST & ASSOCIATES, INC. Err 4` \ACLTWIN\STD\EGENO.OWG ALLENTOWN WATER AND SEWER IMPROVEMENT PROJECT LEGEND OF' TERMS AND SYMBOLS USED ON EXPLORATION LOGS PROJECT NO.:96023 FIGURE A -1 HONG WEST & ASSOCIATES , INC . DRILLING COMPANY: Geoboring and Development. Inc. DRILLING METHOD: Mobile 13-81. 4" Hollow Stem Augers SAMPLING METHOD: SPT BORING LOG TOTAL DEPTH: 18.S Feet SURFACE ELEVATION: 20s Feet MEASURING POINT EL.: Feet d C 0 5 — 10— 15— 20— 25— os ar S -1 2-2-5 7 32 N s-2 1-4 -3 7 18 S-3 3-4-5 N S-4 3-8 -7 0 12 6 27 N S-5 7 -10-10 20 28 0 co N GM ML SE SM SP DESCRIPTION Medium dense, gray, silty GRAVEL. moist. (UNDOCUMENTED FILL) Medium stiff, dark brown, SILT with sand, moist. - Fine grained sand, trace organics. (ALLUVIUM) Loose. very dark grayish brown, poorly graded SAND with sift, moist Fine grained sand. Medium dense. very dark grayish brown. poorly g r ad d SAND, wet. Fine to medium grained END OF BORING BH -1 AT 18.5 FEET. During drilling. groundwater observed at a depth - of about 7 feet. • Moist. Cont. (Z) Pen. Resistance Wows/foot) 0 20 40 80 80 A 4• • A. • NOTE: This log of subsurface conditions apples only at the specified location and on the date Indicated, end therefore. may not necessarily be indicative of other times and /or locations. PROJECT: Allentown Water & Sewer BORING: BH -1 LOCATION: Tukwila, Washington DATE COMPLETED: 2/19/98 LOGGED 8Y: S. Wright PROJECT NUMBER: 98023 PAGE: 1 OF 1 Figure A -2 two HONG WEST & ASSOCIATES, INC . DRILLING COMPANY: Geoboring and Development. Inc. DRILLING METHOD: Mobile B -81, 4" Hollow Stem Augers SAMPLING METHOD: SPT BORING LOG TOTAL DEPTH: 18.5 Feet SURFACE ELEVATION: 19s Feet MEASURING POINT EL.: Feet W_ _ W W W W. _ o h O U d < W b O VI o — 0— 5 — 10— 15— 20— 25— N S-I 2-2-3 S -2 2-1-2 5 -3 1-2-2 N S-4 2-6-0 5 18 3 18 4 19 6 30 N S-5 2-3-8 0 28 S M 1 DESCRIPTION of 5/8" aims crushed rock base course. Loose to very loose, dark grayish brown. silty SAND, moist. Fine gained sand, trace organics. (ALLUVIUM) Rough drilling between about 8 and 0 feet. ML Stiff, dark grayish brown, sandy SILT, wet. Fine — grained sand. Loose, very dark grayish brown, poorly graded SM SAND with silt. wet. Fine to medium grained sand. END OF BORING !311-2 AT 18.5 FEET. During drilling, groundwater observed at a depth _ of about 9 feet. • Moist. Cont. (Z) 1 Pen. Resistance (blows /foot) 20 40 80 80 A • A • 1 • • NOTE: This log of subsurface conditions apples only at the specified location and on the date Indicated. and therefore, may not necessarily be Indicative of other tines and /or locations. PROJECT: Allentown Water & Sewer BORING: BH -2 LOCATION: Tukwila. Washington DATE COMPLETED: 2/19/96 LOGGED BY: S. Wright PROJECT NUMBER: 96023 PAGE: I OF i Figure A -3 HONG WEST G ASSOCIATES , INC. DRILLING COMPANY: Geoboring and Development, Inc. DRILLING METHOD: Mobile 13-61. 4" Hollow Stem Augers SAMPLING METHOD: SPT BORING LOG TOTAL DEPTH: 34 Feet SURFACE ELEVATION: 18* Feet MEASURING POINT EL.: Feet g 0 0 N ~ t S -1 1-1-3 S-2 3-5-0 N S-3 4-5-0 S-4 0-0-1 4 20 11 28 11 35 N S-5 3-4 -3 7 40 S-e 4 -4 -E 14 41 N S -7 8 -18-21 37 27 I 66 AL SM OH • • • SM SM 1 2" of sod. DESCRIPTION Loose to medium dense. very dark grayish brown. poorly graded SAND with slit, moist to wet. Fine grained sand. (ALLUVIUM) Very soft, very dark brown, ORGANIC SILT, wet Dense, very dark gray, poorly graded SAND, wet. Fine to medium grained sand. Loose to medium dense, very dark gray, silty SAND, wet. Fine grained sand with thin interbeds - of gray organic soil and silt. • Moist. Cont. (X) • Pen. Resistance (blows/foot) 20 40 80 80 A A A A 1 • • PL L NOTE: This log of subsurface conditions apples only at the specified location and on the date Indicated, and therefore. may not necessarily be Indicative of other times and /or locations. PROJECT: Allentown Water & Sewer LOCATION: Tukwila, Washington DATE COMPLETED: 2/20/96 LOGGED BY: S. Wright BORING: 131 PROJECT NUMBER: 96023 PAGE: I OF 2 Figure A -4 V a 0 25 40 45 w Lirs CC o N S-8 12 -10-28 47 28 N S-0 7- 111 -26 45 27 GS HONG WEST & ASSOCIATES , INC . BORING LOG x <m N m JN Ca CA DESCRIPTION Dense, very dark gray, poorly graded SAND with silt. wet. Fine to medium gained sand. END OF BORING BH -3 AT 34 FEET. During drilling, groundwater observed at a depth of about 5 feet. • Moist. Cont. (X) I Pen. Resistance (blows/foot) 20 40 80 80 • L PROJECT: Allentown Water & Sewer BORING: BH -3 LOCATION: Tukwila. Washington DATE COMPLETED: 2/20/90 LOGGED BY: S. Wright PROJECT NUMBER: 90023 PAGE: 2 OF 2 Figure A -5 HONG WEST & ASSOCIATES , INC . DRILLING COMPANY: Geoboring and Development. Inc. DRILLING METHOD: Mobile 13-81. 4" Hollow Stem Augers SAMPLING METHOD: SPT BORING LOG TOTAL DEPTH: 16.5 Feet SURFACE ELEVATION: 20s Feet MEASURING POINT EL.: Feet DESCRIPTION M /2" of 5/8" minus crushed rock base course. Very loose to loose. dark grayish brown. silty - SAND, moist. Fine gained sand. (ALLUVIUM) ML Very soft, dark yellowish brown. SAT, wet. Trace fine gained sand, trace organics. SM Medium dense, very dark grayish brown, silty SAND, wet. Fine grained sand, trace fine gravel. END OF BORING EN-4 AT 18.5 FEET. During drilling. groundwater observed at a depth of about 5 feet. • Mast. Cont. 1%) • Pen. Resistance (blows/foot) 20 40 80 60 L / 1 • • L • NOTE: This log of subsurface conditions apples only at the specified location and on the date indicated. and therefore. may not necessarily be indicative of other times and /or locations. V PROJECT: Allentown Water & Sewer LOCATION: Tukwila, Washington DATE COMPLETED: 2/19/98 LOGGED BY: S. Wright BORING: BH -4 PROJECT NUMBER: 98023 PAGE: 1 OF 1 Figure A-6 HONG WEST & ASSOCIATES, INC. DRILLING COMPANY: Geoboring and Development. Inc. DRILLING METHOD: Mobile 8 -61, 4" Hollow Stem Augers SAMPLING METHOD: SPT BORING LOG TOTAL DEPTH: 18.5 Feet SURFACE ELEVATION: 1O= Feet MEASURING POINT EL: Feet 25 N S -1 1-2-3 S-2 2-3-8 N S-3 4-5-5 NS -4 5 38 9 33 ID 28 e -11-18 27 25 N S-5 3-4-12 21 25 .J 0 Y N DESCRIPTION ML SM SP 4" of 5/8" minus crushed rock base course. Medium stiff, mottled grayish brown and dark yellowish brown. SILT, moist. Trace organics. (ALLUVIUM) Loose. very dark grayish brown. silty SAND. wet. _ Fine grained sand. Medium dense, very dark gray, poorly graded SAND, wet. Fine to coarse grained sand. END OF BORING BH-5 AT 16.5 FEET. During drilling, groundwater observed at a depth of about 3 feet. • Nast. Cont. (%) Pen. Resistance tblows/foat) 20 40 80 80 l L L r 4 4 NOTE: This log of subsurface conditions apples only at the specified location and on the date indicated, and therefore, may not necessarly be indicative of other times and /or locations. Y PROJECT: Allentown Water & Sewer BORING: BH -5 LOCATION: Tukwila, Washington DATE COMPLETED: 2/19/96 LOGGED 8Y: S. Wright PROJECT NUMBER: 98023 PAGE: 1 OF t Figure A -7 HONG WEST & ASSOCIATES , INC . DRILLING COMPANY: Geoboring and Development. Inc. DRILLING METHOD: Mobile B -81. 4" Hollow Stem Augers SAMPLING METHOD: SPT BORING LOG TOTAL DEPTH: 11.5 Feet SURFACE ELEVATION: 10* Feet MEASURING POINT EL.: Feet 25 N S-I 3-3 -4 S -2 2-8-8 S-3 3-7 -7 N S-4 3i -0 0 29 12 3l 14 34 14 32 J m N SM I SP SM DESCRIPTION 1 —Vr ACP over 3' crushed rock base course. Loose. very dark grayish brown, poorly graded SAND with slit, moist to wet. Fine to medium grained sand. (ALLUVIUM) Medium dense. very dark gray. poorly graded SAND. wet. Fine to medium grained sand. Medium dense. very dark grayish brown, silty SAND. wet. Fine to medium gained sand. END OF BORING BH - AT 11.5 FEET. During drilling, groundwater observed at a depth of about 2.5 feet. • Pen. Cont. � (x) rGL Resistance (blows/fcot) 20 40 80 80 4 A L NOT This log of subsurface conditions applies only at the specified location and on the•date indicated. and therefore, may not necessarily be indicative of other times and /or locations. PROJECT: Allentown Water C Sewer BORING: BH -6 LOCATION: Tukwila, Washington DATE COMPLETED: 2/19/98 LOGGED BY: S. Wright PROJECT NUMBER: 98023 PAGE: 1 OF 1 Figure A -8 Igo v tor too HONG WEST & ASSOCIATES , INC. DRILLING COMPANY: Geoboring and Development, Inc. DRILLING METHOD: Mobile 8 -61. 4" Hollow Stem Augers SAMPLING METHOD: SPT BORING LOG TOTAL DEPTH: 11.5 Feet SURFACE ELEVATION: 112: Feet MEASURING POINT EL» Feet 20 25 O Urs CC N 0 N S -1 2-44 S - 2 3 - 4 0 32 0 33 GS N S -3 H-0 I 51 AL N S-4 8-0 -10 10 32 J 0 } a, N • CO N N < I' cry N 0 • 0 CO P /2" of sod. DESCRIPTION SM Loose. very dark grayish brown. poorly graded SAND with silt moist to wet. Fine grained sand. (ALLUVIUM) SM Loose, very dark grayish brown, silty SAND. wet. Fine grained sand. ML Very soft. mottled dark yellowish brown and dark gray, SILT. wet. Trace organics. Medium dense, very dark grayish brown. poorly graded SAND. wet. Fine to coarse grained sand, trace fine graveL END OF BORING 8H -7 AT IS FEET. During drilling, groundwater observed at a depth of about 3 feet. • Hoist. Cont. (X) I Pen Resistance (blows/foot) 20 40 80 80 A A A A • PLL • NOT This log of subsurface conditions apples on at the specified location and on the date located, and therefore, may not necessarily be indicative of other times and /or locations. Y PROJECT: Allentown Water & Sewer BORING: BH -7 LOCATION: Tukwila, Washington DATE COMPLETED: 2/19/8a LOGGED BY: S. Wright PROJECT NUMBER: 913023 PAGE: I OF I Figure A -9 HONG WEST & ASSOCIATES , INC . DRILLING COMPANY: Geoboring and Development, Inc. DRILLING METHOD: Mobile 8 -81. 4" Hollow Stem Augers SAMPLING METHOD: SPT BORING LOG TOTAL DEPTH: 44 Feet SURFACE ELEVATION: 1O= Feet MEASURING POINT EL.: Feet H O 20 Mi vi 2 1 N0 W u cg co so 0 NH S -1 1-4-5 28 N S -2 4 -1 -1 14 28 N S-3 4 II 33 N S-4 1-0-S 14 39 5-5 -14 25 24 N S-6 8 -10-15 25 28 N S-7 3-1 -2 19 25 6S 0 m X Cl) ti SM SP • • • • SM SE SM 2" of sod. DESCRIPTION Loose. very dark grayish brown, poorly graded SAND with silt, moist to wet. Fine grained sand. (ALLUVIUM) Medium dense, very dark grayish brown, poorly graded SAND, moist Fine grained sand. Medium dense, dark grayish brown, silty SAND, wet. Fine grained sand. _ 0 20 40 80 80 Medium dense to dense, very dark gray. poorly _ graded SAND with silt, wet. Fine to medium grained sand with thin interbeds of dark gray - silt. • Moist. Cont. (X) ! Pen Resistance (blows/foot) A • ♦ • A t A* • NOTE: This mu of subsurface conditions apples only at the specified bcatlon and on the date indicated, and therefore. may not necessarily be Indicative of other times and /or locations. PROJECT: Allentown Water & Sewer BORING: BH -8 LOCATION: Tukwila, Washington DATE COMPLETED: 2/19/98 LOGGED BY: S. Wright PROJECT NUMBER: 98023 PAGE: 1 OF 2 Figure A -10 W _ if W Wa - -a °G S a w ° m - X ' > .r S O S Co W 6.' Z Z O CO i HONG WEST & ASSOCIATES , INC. BORING LOG X Mc N U1 L. N <r JN �° DESCRIPTION se_ Medium dense to dense, very dark gray, poorly SM graded SAND with silt, wet. Fine to medium grained sand with thin interbeds of dark gray ENO OF BORING BH -8 AT 44 FEET. During drilling. groundwater observed at a depth of about 7 feet. • )(fist. Cont. (X) 4 Pen. Resistance (blows/foot) 20 40 80 80 • • l 50+ 50+ PROJECT: Allentown Water & Sewer BORING: BH -8 LOCATION: Tukwila, Washington DATE COMPLETED: 2/19/98 LOGGED BY: S. Wright PROJECT NUMBER: 98023 PAGE: 2 OF 2 Figure A -11 di APPENDIX B LABORATORY TESTING u Ibmw Soil samples obtained from the borings were taken to the HWA laboratory for further examination and testing. Laboratory tests were conducted on selected soil samples to characterize certain properties of the on -site soils. Laboratory tests, as described below, included determination of moisture content, Atterberg Limits, and grain size distribution. MOISTURE CONTENT TESTING APPENDIX B LABORATORY TESTING The moisture contents of all soil samples were determined in general accordance with ASTM D 2216. The test results are shown at the sampled intervals on the appropriate boring logs in Appendix A. ATTERBERG LIMITS TESTING The liquid limit (LL), plastic limit (PL), and plasticity index (PI) of selected soil samples were determined in general accordance with ASTM D 4318. The tests were conducted on selected fine- grained soil samples for the purpose of classification. The test results are summarized on Figure B -1 and are shown on the appropriate boring logs. GRAIN SIZE ANALYSIS The grain size distributions of selected soil samples were determined in general accordance with ASTM D 422. Grain size distribution curves for the tested samples are presented on Figures B -2 through B-4. 96023RF.DOC B -1 HONG WEST & ASSOCIATES, INC. — - - - DEPTH 11 P1 SYMBOL BORING (FEET) 4 (%) 4 •■ BH -3 10 -11.5 66 16 BH -4 10 -11.5 35 7 BH -7 7.5-9 48 16 — - - - P / ..s / O • o f G / / Q O t MH ar OH /C ■ - Cy>gignflivrz/ ML or OL 1 70 0 LIQUID LIMIT (LL) I &ASSOCIATES, INC. ALLENTOWN WATER AND SEWER IMPROVEMENT PROJECT PLASTICITY CHART PROJECT NO.: 96023 FIGURE: B--1 PLASTICITY INDEX (PI) Clay Silt Sand Grave I Fine I Medium I Cm Fine I Crse W 90 :.-. — - X I i t i 20 _ — — I , I I . 70 — 60 — = — I , II 50 — — I 4 I i 40 = — I 1 30 — — _ — 1 1 I 20 I 10 — — _ — 4 . 0 — I . I i . ! i I 1 1 1 1 1 I I I I I I I I I 1 I I I I I I ( I I I I I I I 1 IIII 1 I I I I 1 - - - - - - Sur led ter Oar 6.o leo lee ear Project Allentown Water and Sewer Improvement Project Location: Tukwila. WA Project Numbec 96023 Date Tested: 2/28/96 Remarks: Very dark gray, poorly graded SAND with silt (SP-SM) 1 0.0005 0.001 HONG WEST & ASSOCIATES, INC. GRAIN SIZE DISTRIBUTION ASTM D422 0.01 Test Hole Number: 9H-3 Sample Number: S-9 Depth: 32.5-34.0 feet Sample Description: Gravel: 0.0 Sand: 93.4 Fines: 6.6 SIEVE SIZES 200 100 60 40 30 20 16 10 4 3/8 3/41 3/22 3 0.1 1 GRAIN SIZE - MILLIMETERS 2 10 5 4iONGWEST kASSOCIATES.INC. ler \ACLIVAN\STDVIEWGRAINAV0 ALLENTOWN WATER AND SEWER IMPROVEMENT PROJECT GRAIN SIZE DISTRIBUTION CURVE PROJECT NO.: 96023 FIGURE: 8-2 Clay Silt Sand Gravel Fine I Medium I CMG Fine I Crse WV .... 90 — X X _ — 80 — - i — _ 70 i i , . I _ 60 — 7 1 1 i — 50 — i i 40 — i I — 30 — i H I I — 20 — I ii iH • — _ _ 10 — ; i I — 1 i i l i n i II 1 I I II fil I I f i t III I liii 1 I I ill - _ - ter es. ear bar Project Allentown Water and Sewer Improvement Project Location: Tukwila, WA Project Number. 96023 Date Tested: 2/28196 Remarks: Very dark grayish brown, silty SAND (SM) 1 HONG WEST & ASSOCIATES, INC. GRAIN SIZE DISTRIBUTION ASTM D422 0.0005 0.001 0.01 Test Hole Number: BH-7 Sample Numbec S-2 Depth: 5.0-6.5 feet Sample Description: Gravel: 0.1 Sand: 63.9 Fines: 36.0 SIEVE SIZES 200 100 60 40 30 20 16 10 4 3/8 3/4 1 3/22 3 0.1 1 GRAIN SIZE - MILLIMETERS 10 -HO Ik ASSOCIATES. INC. \ACI.TVAN \STIANEWCRMN.DWG ALLEN TOWN WATER AND SEWER IMPROVEMENT PROJECT GRAIN SIZE DISTRIBUTION CURVE PROJECT NO.: 96023 FiGURE: B-3 Clay Silt Sand Gravel Fine I Medium I Crse Fine I Crse 90 SO — I e'--I---------*-1--- : — _ — . 1 1 1 _ — I I I i I I I 60 — — I i I 1 I • I I i 50 — 1 1 1 I I I i j = 1 1 I i 1 I I _ t t i t I I ; 20 — = t . i ; , I I i 0 _ — — 1 f t ; : ■ I f 1111 I I 1 1 1111 I 1 1 1 1 f1i 1 1 (11111 1 111111 1 1 1 1 1 1 - - - - - _ tow ear tar Oar Ire Iry HONG WEST & ASSOCIATES, INC. GRAIN SIZE DISTRIBUTION ASTM D422 Project Allentown Water and Sewer Improvement Project Location: Tukwila. WA Project Number 96023 Date Tested: 2/29/96 Remarks: Very dark gray, poorly graded SAND with silt (SP-SM) 1 Test Hole Number: BH-8 Sample Number: S-7 Depth: 22.5-24.0 feet Sample Description: Gravel: 0.5 Sand: 92.9 Fines: 6.6 0.0005 0.001 0.01 SIEVE SIZES 200 100 60 40 30 20 16 10 4 3/8 3/4 1 3122 3 0.1 1 GRAIN SIZE. MILLIMETERS 2 10 5 ALLEN TOWN WATER AND SEWER BONGWEST IMPROVEMENT PROJECT &ASSOC1ATES.INC. 6.4 NACLIWN \SID \NEWGRA1N.DWG GRAIN SIZE DISTRIBUTION CURVE PROJECT NO.: 96023 FIGURE: B-4 m 26. Landscape Plan No landscaping plans has been prepared for this Project. All surface restoration proposed will match pre - construction conditions. 27. Lighting Plan No lighting plan has been prepared for this Project. No new lighting or revisions to existing lighting is included in this Project. 28. Signage No new signs are planed for this Project. 29. Stream Frontages See attached map which indicates the locations of the top of stream bank, stream bank toe, stream mean high water mark, and base flood elevation. fi SHEET INFORMATION STREAM BANK TOE STREAM MEAN HIGH WATER MARK BASE FLOOD ELEVATION (100 YR. FLOOD) 40' RIVER ENVIRONMENT 100' LOW IMPACT ENVIRONMENT 200' HIGH IMPACT ENVIRONMENT t- � - , y am 1 J d //,i- jacr ♦urrr. _n, ♦,n t { .f '"•••■••"'"'.?/= ■ / ` 1 sr -- (________OUT.H43 117: 0 T _rrr_ r.r_ur♦,` , �„ _ „♦ `" DUWAMISH RIVER SHORELINE PLANS SCALE: 1"=-40' I i '. I „ ♦rrr_,r ALL E NTOWN WATER AND SEWER IMPROVEMENT PROJECT —PHASE 2 PROJECT NO. 95 —WTO1 and 95 —SW02 CITY OF TUKWILA 1 ;t; SHEET 1 .t M... 1l t t.. m1 r� .. ..._.._. -.�.. ... „ ..,.,.Iii• .i �""'�,,.._''' -., � R — a "_�_ z �: nom_ iS ^x mtt tt. , • t t , .ttt . DUWAMISH RIVER SHEET INFORMATION 1 t3 t-* r f I :7 STREAM BANK TOE STREAM MEAN HIGH WATER MARK BASE FLOOD ELEVATION (100 YR. FLOOD) 40' RIVER ENVIRONMENT 100' LOW IMPACT ENVIRONMENT 200' HIGH IMPACT ENVIRONMENT tt .01`Sa1 "tv ii I t «107.44 '% /. 4 !41 4 :4,[! :pq1q'Y. -"' " � tt� trs SEE SHEET 3 1 SHORELINE PLANS SCALE: r=40' 1 0 1 \ l \\ \\ 1 ! \ I \ \\ .\\ s!.....x..„., ,.... -,,,,_... \ r----\--, \ \ \ --*. ‘k„ ..... ..,,.. \ .c..., 1 ) \, --*.t...--1 \ 1 N. t \ 1 t 1 1 1 1 S 421 II i t r j 1297 MAR. ari ttsa CITY OF TUKWILA 1 ALLENTOWN WATER AND SEWER IMPROVEMENT PROJECT —PHASE 2 PROJECT NO. 95 —WTO1 and 95 —SW02 SHEET 2 it rr_rrr•■ rr 9.9` SHEET INFORMATION • t • 48 STREAM BANK TOE STREAM MEAN HIGH WATER MARK BASE FLOOD ELEVATION (100 YR. FLOOD) 40' RIVER ENVIRONMENT 100' LOW IMPACT ENVIRONMENT 200' HIGH IMPACT ENVIRONMENT ..3.. ^ � 1,. �_ + _ �' •, ice. 37 .y t rut 7 "I 1''.ii iw 111,9 v II I MID I 1 1 1 f r.";' k 3 1, y 1 1 ' ► . °N h , i I! L 1162D :I ( 4 : 119999909999 t. SHORELINE PLANS SCALE: 1' 11 42ND _ AVENU SOUTH } 4i; \ix• - � ^•. -- ,y at. '+t*s.-cw 'L r 1 11642 i ! 1 CITY OF TUKWILA ♦r rr rrrr rrrr _rrr rrrrr rrrrrrrr _rrr rrrr rrrr rrrr rrrr _�"`�— __., v - -.- f —_` _ ^.._.._ -... rrr rrrrrrrr _ r �. rr rrrr _rrrrrrrrr DUWAMISH RIVER "'rrrr —r ALLENTOWN WATER AND SEWER IMPROVEMENT PROJECT —PHASE 2 PROJECT NO. 95 —WTO1 and 95 —SW02 SHEET 3 11662 42ND AVER t E 66 DiUR.C's1 11814 SHEET INFORMATION STREAM BANK TOE STREAM MEAN HIGH WATER MARK BASE FLOOD ELEVATION (100 YR. FLOOD) 40' RIVER ENVIRONMENT 100' LOW IMPACT ENVIRONMENT 200' HIGH IMPACT ENVIRONMENT .1 ! RUNS I • 11802 111 ■11110•11.1 III ' 1 -- — I El } Ni 1 NI I � ` a. 1 ' ti' 11810 DUWAMISH RIVER C SHORELINE PLANS SCALE: 1"=40' ts f CITY OF TUKWILA i f 1 c N R I ALLENTOWN WATER AND SEWER IMPROVEMENT PROJECT —PHASE 2 PROJECT NO. 95 —WTO1 and 95 —SW02 SHEET 4 T :7 I i ;': I i ,te ,,' ' VEt I S lit 1 A N 12028 j N .----------,-,,, ,,,,,L i ,—� - .',,,� ...r `.e.,,, -r te 1 , i {! [ 1 Z �., � te �'• ` i ,---" mss.. _ ' }.`�1�„�, `o 'y� ril k -.r t": �'c. �- y' °: "a :.:,-: - ^R�' ' t __ j � � � € hi S 4 : "' ~ ..._—t------,--- . .., i ! ^ J-C���. . ..� 'j(.,�_1..',"� -� / K. F jf (t0.' • ( 1 ✓ _.`-.. `�1..r�+ 1 i�'� • V • "+..� / i „ 4: 1 E i I 1\ 1 j( k-- \ i /t '''' i I \ \-1 SHEET INFORMATION ,,, .,,, r „. r , a r1nrn STREAM BANK TOE STREAM MEAN HIGH WATER MARK BASE FLOOD ELEVATION (100 YR. FLOOD) 40' RIVER ENVIRONMENT 100' LOW IMPACT ENVIRONMENT 200' HIGH IMPACT ENVIRONMENT •riuwl ^..n � n�u���nr�����N r111M n•r�nru�r n�r���r u•rmr DUWAMISH RIVER SHORELINE PLANS SCALE: 1"=40' NisItlostIlmat 3 I t lit ALLENTOWN WATER AND SEWER IMPROVEMENT PROJECT —PHASE 2 PROJECT NO. 95 —WTO1 and 95 —SW02 CITY OF TUKWILA SHEET 5 to s- W W co W W co "p` ... •..��"_ ' _ _sue°' SHEET INFORMATION STREAM BANK TOE STREAM MEAN HIGH WATER MARK BASE FLOOD ELEVATION (100 YR. FLOOD) 40' RIVER ENVIRONMENT 100' LOW IMPACT ENVIRONMENT 200' HIGH IMPACT ENVIRONMENT R E ircs - 79 4f C0 r F E D 19 k (12002) GARAGE D N ' DUWAMISH RIVER SHORELINE PLANS SCALE: r=40' } 421 4 i In 1! ) ' I cs 421 !I o►� \V i1 { CITY OF TUKWILA 12210 III moo. 12214 R - 16 3.4 marl- ALLENTOWN WATER AND SEWER IMPROVEMENT PROJECT —PHASE 2 PROJECT NO. 95 —WTO1 and 95 —SW02 SHEET 6 • 11111="11•1,111 1 . 01"•0111.1111M1-1.1MI ... SHEET INFORMATION STREAM BANK TOE STREAM MEAN HIGH WATER MARK BASE FLOOD ELEVATION (100 YR. FLOOD) 40' RIVER ENVIRONMENT 100' LOW IMPACT ENVIRONMENT 200' HIGH IMPACT ENVIRONMENT III ILJ SIEMIVeVOM IIIVOSPIAKMPIROMI • 1.,.,,g1,1swees.t.17—.:A...4,... 41 ',...:r 1. " • • " • DUWAMISH RIVER t4 I 00 15 14 13 r4+1-11■1,r ..11.4,2.11=4—■11- IMINEME 1.1...! SCALE: 1"=40' •■••• Imo o INN I" we 4 01 1 1 14 1 1 SHORELINE PLANS - • I k k 7 0 12250 . _ .- ,..,' 4208 N. `',1 t- ' ‘ 1 ; ;r;0 7 ti ' I 1 >, '.. - . /ti,-- , • , I I K i II ii f 1 r.', 12244 K N: • i I ,.. rR-;:%--;,;„: --- -- --:: — , 1225B ::..f , h V 1 ' --4- :ii; 1 , .„, 1 ,, F .„ . sIi 42ND AV UE SOUTH_ :" .....s .....* •"..N --"•-• .,.." , __ ..„...___ 12 ....•••••• %MD ..11III0.6 tio=0111m...,IIN 4 fl 1! I I 11 ()) It I 1. i■ it I CITY OF TUKWILA 11.•111■•••10=01.111■111 amm ALLENTOWN WATER AND SEWER IMPROVEMENT PROJECT—PHASE 2 PROJECT NO. 95—WTO1 and 95—SW02 NMI 1-- 11 1 10 • •••■:;;--- SHEET 7 r r STREAM BANK TOE STREAM MEAN HIGH WATER MARK BASE FLOOD ELEVATION (100 YR. FLOOD) 40' RIVER ENVIRONMENT 100' LOW IMPACT ENVIRONMENT 200' HIGH IMPACT ENVIRONMENT 4673 � t �7(3r SHORELINE PLANS SCALE: 1''=40' ALLENTOWN • WATER AND SEWER IMPROVEMENT PROJECT —PHASE 2 PROJECT NO. 95 —WTO1 and 95 —SW02 I --:=7 .......... 4 _ 2 ,, .R `� � 2�5? -.�C - — ._ I ' z. ' 2 �fTUa q ax:� f^ ;MN ;MN ��, Y s r. — — —r-- OW .,' ∎ ..= ' .. 8'$TW .. 4I3 .�,, �� ^ `._ _� . -_ • yr> , M _ = --�-^_ 0 rt2 -ti°RJ `C� !1'�tC }St •� 7 f } d — o .-.m i ce^ t... ..j ... W+.IS ..,.i _ "^w. r `��/' tai ' ! `'"'." ^y-- .y4 *,,,..�...�.,,,, " 4...'r"" - - --,- \ .:-.-='-^.-,:,—,. RACE A ': i ;t1:1 .,1` I t � t ` J x $64 .Q ur k ..4'.1..f..f..L �ai..:.e:�.i -J!! ..i ,{ I JJJ 482 2". J`�����R; iii ' 1 1 I 1" T ✓ x / ✓..(!:.fi : ll,r alt vnc j L: t�Cf�. � � r �._ t h r V �q;g 114 .....f.i.: 4‘144‘'e . , 2ni SHEET INFORMATION STREAM BANK TOE STREAM MEAN HIGH WATER MARK BASE FLOOD ELEVATION (100 YR. FLOOD) 40' RIVER ENVIRONMENT 100' LOW IMPACT ENVIRONMENT 200' HIGH IMPACT ENVIRONMENT 1 �� 1 �•�1�1� DUWAMISH RIVER SHORELINE PLANS SCALE: 1"=40' CITY OF TUKWILA • FSd ALLENTOWN WATER AND SEWER IMPROVEMENT PROJECT —PHASE 2 PROJECT NO. 95 —WTO1 and 95 —SW02 SHEET a `" PROJECTS PART 6: SITE PLANS FOR SHORELINE 30. Shoreline Information See Item #29 for map which indicates the locations of the top of stream bank, stream bank toe, stream mean high water mark, and base flood elevation. lib • i ii OW WO Yi m ". Work within the Mean High Water Mark No work will be within the mean high water mark. r Ile VD If NO 32. Impact Limits high impact areas. US Ink m r MIN See Item #29 for map which indicates the 40' river, 100' low impact and the 200' err 33. Maintenance Easement ibrol tab di r MID No easements are location within the Project limits. IMP 34. Construction Limit Lines No major filling or grading operations will be included as part of this Project. PART 7: ELEVATIONS m di le r 35. Building Elevations Not Applicable 36. Colored Elevations OM le NO lie MO lie WO r Not Applicable NO r IMP Ir m alb IMO VIP 37. Photomontage Not applicable 38. Site Rendering MID ND r r .. SO Not Applicable SHORELINE PROJECTS PART 8: CROSS - SECTIONS FOR OD MO MO NO OM r II ill NO NO IS NO r r `' 39. Shoreline Cross Sections Oro See attached for the shoreline cross sections Imo rides: North Puget Sound - 92 - Duwamish Waterway http://wvvw.nwd-wc.usace.army.milinws/hhitides/np/np92.htm ‘• Tide Datu bri tor ?of 1 Tidal Datum Regions, North Puget Sound Region 92 - Duwamish Waterway Relation Between Various Datum Planes Datum Plane 1 MLLW NGVD NAVD88 COE !Highest Estimated Tide 15.00 +/ 0.5 Mean Higher High Water 11.10 5.10 8.68 Mean High Water 10.24 4.24 7.82 Mean (Half) Tide Level 6.50 0.50 4.08 lir NGVD 6.00 0.00 3.58 Mean Low Water 2.76 -3.24 0.34 i.., Mean Lower Low Water 0.00 -6.00 -2.42 Lowest Estimated Tide -4.50 +1- 0.5 r Highest Observed Tide Date ;Lowest Observed Tide 'Date IPeriod of Record !Epoch Jun 1, 1924 - Apr 30, 1925 I-. - I ,Index Gage -• • All Data Provided is Provisional Home // Mail // Search Last Updates on Thursday. January 06, 2000 Record Levels (MLLW) Local Area Map BAINBRIDGE ISLAND VAy1ION • VICINITY MAP KIRKL N 6 RENTON 8111/ANISII RIVER 2/13/2004 10:24 AM r f I C r r r C r 120 116 112 108 104 100 -6 -20 0 12+00 r r r r r [ r 20 40 CROSS SECTION ALONG 42ND AVENUE SOUTH 120 116 112 108 104 100 CITY OF TUKWILA r Gray & Osborne, Ingo. CONSULTING ENGINEERS PAVE / ENT W1 )TH I ' II'_ '1 - _„ • 10.) YR FI1000 - ,II EL=117.0' 1= i f I r MI-WM aril 03.0' Fr •r, RIVERE ANK TOE o FA EL= 97,5' r f I C r r r C r 120 116 112 108 104 100 -6 -20 0 12+00 r r r r r [ r 20 40 CROSS SECTION ALONG 42ND AVENUE SOUTH 120 116 112 108 104 100 CITY OF TUKWILA r Gray & Osborne, Ingo. CONSULTING ENGINEERS r r 1 r r r r r r r r 120 116 112 108 104 100 —60 16+00 —40 —20 0 20 40 CROSS SECTION ALONG 42ND AVENUE SOUTH 120 CITY OF TUKWILA 116 112 108 104 100 4 Z2, Gray ar Osborne, Inc. CONSULTING ENGINEERS PAVEMENT WDTH I 1 1 I I' —rn • 7 1 ..-rr rr r 100 YR FLOOD .7 EL=.117.0' 17 / : •7 MI- EL=103.0' WM RIVEROANK 1 • E ci c4 , • EL=.9 .5' r r 1 r r r r r r r r 120 116 112 108 104 100 —60 16+00 —40 —20 0 20 40 CROSS SECTION ALONG 42ND AVENUE SOUTH 120 CITY OF TUKWILA 116 112 108 104 100 4 Z2, Gray ar Osborne, Inc. CONSULTING ENGINEERS r Ii Ir t t r 120 116 112 108 104 100 —60 —40 —20 [ r [ [ I I[ I I[ 20 +00 0 20 40 CROSS SECTION ALONG 42ND AVENUE SOUTH 120 CITY OF TUKWILA 116 112 108 104 100 Gray az Os Inc. CONSULTING ENGINEERS PAVEMENT WI )TH ■ . l 100 YR FLOOC .. - _ -- - - x -1170' 1 I. s T r - MHWN 3.0' EL -1 C ID _ = r KIY,Kt3ANt% l U t °f EL /297.5' r Ii Ir t t r 120 116 112 108 104 100 —60 —40 —20 [ r [ [ I I[ I I[ 20 +00 0 20 40 CROSS SECTION ALONG 42ND AVENUE SOUTH 120 CITY OF TUKWILA 116 112 108 104 100 Gray az Os Inc. CONSULTING ENGINEERS i [ [ t [ r [ [ [ [ [ [ [ [ C 120 116 112 108 104 100 -60 -40 -20 24 +00 0 20 40 CROSS SECTION ALONG 42ND AVENUE SOUTH CITY OF 120 TUKWILA 116 112 108 04 00 / I Cry 8t Osborne, Inc. CONSULTING ENGINEERS PAVEMENT W()TH 1 I _ICI r l -i11_ 100 YR FLOOD - 1 - EL =117.0 i i• T I MHWN EL =103.0` i _/ RIVER SANK 10E vi EL =97.5` i [ [ t [ r [ [ [ [ [ [ [ [ C 120 116 112 108 104 100 -60 -40 -20 24 +00 0 20 40 CROSS SECTION ALONG 42ND AVENUE SOUTH CITY OF 120 TUKWILA 116 112 108 04 00 / I Cry 8t Osborne, Inc. CONSULTING ENGINEERS C f $ 1 [ [ [ r IT IC I [ [ 1 E I IT C IT 120 116 112 108 104 100 —60 —40 —20 28+00 0 20 40 CROSS SECTION ALONG 42ND AVENUE SOUTH CITY OF 120 TUKWILA 116 112 108 104 100 Gray 8z O•borne, Irio. CONSULTING ENGINEERS J �— I '.'T -11 — =sm.— 1" 100 YR FLOOD Y - -- ... '— ' - —1i t— .1= EL -117. 1 r �t f�l' r MHWM EL- 103.0' I '. rn RIVET BANK '0E Q' EL -97.5' C f $ 1 [ [ [ r IT IC I [ [ 1 E I IT C IT 120 116 112 108 104 100 —60 —40 —20 28+00 0 20 40 CROSS SECTION ALONG 42ND AVENUE SOUTH CITY OF 120 TUKWILA 116 112 108 104 100 Gray 8z O•borne, Irio. CONSULTING ENGINEERS I 6 6 r r r r r r r r r r r r r r r 120 116 112 108 104 100 -60 -40 -20 32+ 00 0 20 40 CROSS SECTION ALONG 42ND AVENUE SOUTH 120 116 112 108 104 100 CITY OF TUKWILA /1 Gray & Osborne, Inc. CONSULTING ENGINEERS EKT-WA)TH ---- 100 YR FLOOD 0' — _ ' - ELa117, t I r T i I MHWM 103.0 1: EL- r A. r TTZ RI RBANK TOE EL 97.5' I 6 6 r r r r r r r r r r r r r r r 120 116 112 108 104 100 -60 -40 -20 32+ 00 0 20 40 CROSS SECTION ALONG 42ND AVENUE SOUTH 120 116 112 108 104 100 CITY OF TUKWILA /1 Gray & Osborne, Inc. CONSULTING ENGINEERS 120 116 112 108 104 100 -40 -20 36+00 0 20 40 120 116 112 108 104 100 CROSS SECTION ALONG 42ND AVENUE SOUTH CITY OF TUKWILA 4 Z5t) Gray & 001borne, CONSULTING ENGINEERS PAVEMENT WI )TH 1 -.111=1=111GAII11111=litanan=1111 _I • 100 n FLO 4 - FIP.11.7 0' i I I ' i . r " 1 mmi loa.of r RIVERE ANK TOE r-. c d EL-97,5 120 116 112 108 104 100 -40 -20 36+00 0 20 40 120 116 112 108 104 100 CROSS SECTION ALONG 42ND AVENUE SOUTH CITY OF TUKWILA 4 Z5t) Gray & 001borne, CONSULTING ENGINEERS