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HomeMy WebLinkAboutSEPA E96-0037 - CITY OF TUKWILA / PUBLIC WORKS - INFRASTRUCTURE DESIGN AND CONSTRUCTION STANDARDSPUBLIC WORKS DESIGN & CONSTRUCTION STANDARDS STANDARDS AND SPECIFICATIONS FOR DESIGN AND CONSTRUCTION OF INFRASTRUCTURE CITY WIDE E96-0037 • CITY OF TUKWILA DETERMINATION OF NONSIGNIFICANCE (DNS) DESCRIPTION OF PROPOSAL: Adoption of Infrastructure and Construction Standards. PROPONENT: TUKWILA PUBLIC WORKS DEPARTMENT LOCATION OF PROPOSAL, INCLUDING STREET ADDRESS, IF ANY: ADDRESS: PARCEL NO: SEC/TWN/RNG: City Wide LEAD AGENCY: CITY OF TUKWILA FILE NO: E96-0037 The City has determined that the proposal does not have a probable significant adverse impact on the environment. An environmental impact statement (EIS) isnot 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. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Thidetermination is final and signed this r2.41..day of ()C12.0AwV- 19910. Steve Lancaster, Responsible Official City of Tukwila, (206) 431-3670 6300 Southcenter Boulevard Tukwila, WA 98188 Copies of the procedures for SEPA appeals are available with the Department of Community Development. Catty of Tukwila Department of Community TO: Jack Pace FROM: John Jimerso RE: SEPA - Public Works Infrastructure Design & Construction Standards DATE: December 9, 1996 John W. Rants, Mayor e,ielopment Steve Lancaster, Director Memorandum SEPA Project File No. E96-0037 Other Files: None Project Description: This is a non -project action consisting of City Council adoption of standards for infrastructure design and construction to be applied to land altering activities, for construction of street, storm and surface water and flood protection, water and sewer facilities. Agencies With Jurisdiction: None Comments to SEPA Checklist: o Page 2. No. 10: City Council approval is being sought.. es - Summary Summary of Primary Impacts: No impacts are anticipated. Much of the document is devoted to procedural standards - i.e. permitting, inspections, bonding etc. Generally, the construction standards do not represent a significant departure from current practices. Summary of Proposed Mitigation: No mitigation is necessary. Most of the improvements made pursuant to these standards will be reviewed again for impacts at the project level. Recommended Threshold Determination: Determination of Non -Significance. 6300 Southcenter Boulevard Suite #100 0 Tukwila, Washington 98188 0 (206) 431-3670 0 Fax (206) 431-3665 AFFIDAVIT O Notice of Public Hearing O Notice of Public Meeting Board of Adjustment Agenda Packet LI Board of Appeals Agenda Packet Planning Commission Agenda Packet 0 Short Subdivision Agenda Packet Notice of Application for Shoreline Management Permit fShoreline Management Permit OF DISTRIBUTION hereby declare that: XDetermination of Non- significance 0 Mitigated Determination of Nonsignificance fl Determination of Significance and Scoping Notice ❑ Notice of Action 0 Official Notice 0 Other Other was mailed to each of the following McLrICL Li(04- aS5 fUwrroy rugs Name of Project File Number T-17-967.- addresses on /c9-- /3 1r)Cras Signature •trol No. Epic File No.%q2 (o-- ©o-27 7 Fee: Receipt No. ENVIRONMENTAL CHECKLIST A. BACKGROUND 1. Name of proposed project, if applicable: Public Works Design and Construction Standards 2. Name of applicant: City of Tukwila, Public Works Department. 3. Address and phone number of applicant and contact person: 6300 Southcenter Blvd. Tukwila, WA 98188 Tel. No. 433-0179 - Bob Giberson - contact person 4. Date checklist prepared: 12/05/96. 5. • Agency requesting checklist: City of Tukwila. 6. Proposed timing or schedule (including phasing, if applicable): Adopt standards as soon as possible. 7. Do you have any plans for future additions, expansion, or further activity related to or connected with this proposal? If yes, explain. n/ a 8. List any environmental information you know about that has been prepared, or will be prepared, directly related to this proposal. This checklist. Page 1 ENVIRONMENTAL CHE4IST 9. Do you know whether applications are pending for governmental approvals of other proposals directly affecting the property covered by your proposal? If yes, explain. No. 10. List any government approvals or permits that will be needed for your proposal. n/a 11. Give brief, complete description of your proposal, including the proposed uses and the size of the project and site.. There are several questions later in this checklist that ask you to describe certain aspects of your proposal. You do not need to repeat those answers on this page. Section E requires a complete description of the objectives and alternates of your proposal and should not be summarized here. Standards and specifications for design and construction of infrastructure within the City of Tukwila. 12. Location of the proposal. Give sufficient information for a person to understand the precise location of your proposed project, including a street address, if any, and section, township, and range, if known. If a proposal would occur over a range of area, provide the range or boundaries of the site(s). Provide a legal description, site plan, vicinity map, and topographic map, if reasonably available. While you should submit any plans required by the agency, you are not required to duplicate maps or detailed plans submitted with any permit applications related to this checklist. n/a 13. Does the proposal lie within an area designated on the City's Comprehensive Land Use Policy Plan Map as environmentally sensitive? n/a Page 2 ENVIRONMENTAL CHECIIST • B. ENVIRONMENTAL ELEMENTS 1. Earth a. General description of the site (circle one): Flat, rolling, hilly, steep slopes, mountainous, other: n/ a b. What is the steepest slope on the site (approximate percent slope)? n/ a c. What 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. n/ a d. Are there surface indications or history of unstable soils in the immediate vicinity? If so, describe. n/a e. Describe the purpose, type, and approximate quantities of any filling or grading proposed. Indicate source of fill. n/ a f. Could erosion occur as a result of clearing, construction, or use? If so, generally describe. g. n/ a About what percent of the site will be covered with impervious surfaces after project construction (for example, asphalt or buildings)? n/ a Page 3 ENVIRONMENTAL CHECOIST • h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any: n/a 2. Air 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. n/a b. Are there any off-site sources of emissions or odor that may affect your proposal? If so, generally describe. n/a c. Proposed measures to reduce or control emissions or other impacts to air, if any: n/a 3. Water 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. n/ a Page 4 ENVIRONMENTAL CHEC IST 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. n/a 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. n/a 4) Will the proposal require surface water withdrawals or diversions? Give general description, purpose, and approximate quantities, if known.. n/a 5) Does the proposal lie within a 100 -year floodplain? If so, note location on the site plan. n/a 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. n/a Page 5 ENVIRONMENTAL CHECIST b. Ground: 1) Will ground water be withdrawn, or will water be discharged to ground water? Give general description, purpose, and approximate quantities, if known. n/a 2) Describe waste materials that will be discharged into the ground from septic tanks or other sources, if any (for example: .Domestic sewage; industrial, containing the following chemicals...; agricultural; etc.) 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. n/a 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. n/a Page 6 ENVIRONMENTAL CHECSIST • 2) Could waste materials enter ground or surface waters? If so, generally describe. n/ a Proposed measures to reduce or control surface, ground, and runoff water impacts, if any: n/a 4. Plants a. Check or circle types of vegetation found on the site: b. What kind and amount of vegetation will be removed or altered? n/a c. List threatened or endangered species known to be on or near the site. n/a Page 7 deciduous tree: alder, maple, aspen, other evergreen tree: fir, cedar, pine, other shrubs grass pasture crop or grain wet soil plants: cattail, buttercup, bulrush, skunk cabbage, other water plants: water lily, eel grass, milfoil, other other types of vegetation b. What kind and amount of vegetation will be removed or altered? n/a c. List threatened or endangered species known to be on or near the site. n/a Page 7 ENVIRONMENTAL CHECOIST d. Proposed landscaping, use of native plants, or other measures to preserve or enhance vegetation on the site, if any: n/a 5. Animals a. Circle any birds or animals which have been observed on or near the site or are known to be on or near the site: Birds:. hawk, songbirds, migratory water fowl, other: Mammals: raccoons, squirrels, small rodents, other: Fish: bass, salmon, trout, herring, shellfish, other: Other: b. List any threatened or endangered species known to be on or near the site. n/a c. Is the site part of a migration route? If so, explain. n/a d. Proposed measures to preserve or enhance wildlife, if any: n/a Page 8 • ENVIRONMENTAL CHECOIST 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. n/a b. Would your project affect the potential use of solar energy by adjacent properties? If so, generally describe. n/a 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: n/a 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. n/a 1) Describe special emergency services that might be required. n/a 2) Proposed measures to reduce or control environmental health hazards, if any: n/a Page 9 ENVIRONMENTAL CHEC IST b. Noise 1) What types of noise exist in the area which may affect your project (for example: traffic, equipment, operation, other)? n/a 2) What types and levels of noise would be created by or associated with the project on a short-term or long-term basis (for example: traffic, construction, operation, other)? Indicate what hours noise would come from the site. n/a 3) Proposed measures to reduce or control noise impacts, if any: n/a 8. Land and Shoreline Use a. What is the current use of the site and adjacent properties? n/a b. Has the site been used for agriculture? If so, describe. n/a c. Describe any structures on the site. n/a Page 10 ENVIRONMENTAL CHECIIST d. Will any structures be demolished? If so, what? n/a e. What is the current zoning classification of the site? n/a g. f. What is the current comprehensive plan designation of the site? n/a If applicable, what is the current shoreline master program designation of the site? n/a h. Has any part of the site been classified as an "environmentally sensitive" area? If so, specify. n/a 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? n/ a 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: n/ a Page 11 ENVIRONMENTAL CHECIIST 9. Housing a. Approximately how many units would be provided, if any? Indicate whether high, middle, or low-income housing? n/a b. Approximately how many units, if any, would be eliminated? Indicate whether high, middle, or low-income housing. n/ a 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? n/a b. What views in the immediate vicinity would be altered or obstructed? n/a c. Proposed measures to reduce or control aesthetic impacts, if any: n/ a Page 12 ENVIRONMENTAL CHECIIST 11. Light and Glare a. What type of light or glare will the proposal produce? What time of day would it mainly occur? n/a b. Could light or glare from the finished project be a safety hazard or interfere with views? n/ a c. What existing off-site sources of light or glare may affect your proposal? n/a d. Proposed measures to reduce or control light and glare impacts, if any: n/a 12. Recreation a. What designed and informal recreational opportunities are in the immediate vicinity? n/ a b. Would the proposed project displace any existing recreational uses? If so, describe. n/ a 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 Page 13 • ENVIRONMENTAL CHEC•IST • 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. n/ a b. Generally describe any landmarks or evidence of historic, archaeological, scientific, or cultural importance known to be on or next to the site. n/ a c. Proposed measures to reduce or control impacts, if any: n/ a 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. n/a b. Is the site currently served by public transit? If not, what is the approximate distance to the nearest transit stop? n/a c. How many parking spaces would the completed project have? How many would the project eliminate? n/ a. Page 14 ENVIRONMENTAL CHEAP/IST • 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). n/ a e. Will the project use (or occur in the immediate vicinity of) water, rail, or air. transportation? If so, generally describe. n/ a f. How many vehicular trips per day would be generated by the completed project? If known, indicate when peak volumes would occur. g. n/a Proposed measures to reduce or control transportation impacts, if any: n/ a 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, generally describe. n/ a b. Proposed measures to reduce or control direct impacts on public services, if any. n/a Page 15 ENVIRONMENTAL CHECIIST • 16. Utilities a. Circle utilities currently available at the site: electricity, natural gas, water, refuse service, telephone, sanitary sewer, septic system, other. n/ a 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. n/a C. SIGNATURE 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. Signature: Date Submitted: 12- 6 q6 Page 16 ENVIRONMENTAL CHECIIST • D. SUPPLEMENTAL SHEET FOR ALL PROJECT AND NON PROJECT PROPOSALS The objectives and the alternative means of reaching the objectives for a proposal will be helpful in reviewing the foregoing items of the Environmental Checklist. This information provides a general overall perspective of the proposed action in the context of the environmental information provided and the submitted plans, documents, supportive information, studies, etc. 1. What are the objectives of the proposal? Provide standards and specifications for infrastructure design and construction. 2. What are the alternative means of accomplishing these objectives? None known. 3. Please compare the alternative means and indicate the preferred course of action: N/ A. 4. Does the proposal conflict with policies of the Tukwila Comprehensive Land Use Policy Plan? No. 5. Proposed measures to avoid or reduce the conflict(s) are: None. Page 17 • )4V , September, 1996 CITY OF TUKWILA INFRASTRUCTURE DESIGN AND CONSTRUCTION STANDARDS MAYOR John W. Rants COUNCIL MEMBERS Pam Carter Joe H. Duffle Joan Hernandez Allen E. Ekberg Pamela Linder Steve Mullet Jim Haggerton PREPARED BY PUBLIC WORKS DEPARTMENT STAFF Ross Earnst, Director Ron Cameron, City Engineer Ted Freemire, S -Div -i Stan Anderson Pat Brodin Phil Fraser Bob Giberson Dave Grage Ross Heller John Howat Scott Moore Brian Shelton Robin Tischmak Greg Villanueva • • • • DEFINITIONS These definitions are for use with these standards. The definitions in the City of Tukwila Municipal Code will prevail and supersede any onflict herein. ADVERSE IMPACT - Any deleterious effect on waters or wetlands, including their quality, quantity, surface area, species composition, aesthetics or usefulness for human or natural uses which are or may potentially be harmful or injurious to human health, welfare, safety or property, to biological productivity, diversity, or stability or which unreasonably interferes with the enjoyment of life or property, including outdoor recreation. AGRICULTURAL LAND MANAGEMENT PRACTICES - Those methods and procedures used in the cultivation of land in order to further crop production and conservation of related soil and water resources. APPLICANT - Any person, firm, or governmental agency who executes the necessary forms to procure official approval of a project or a permit to carry out construction APWA SPECIFICATIONS - arm standard specifications for municipal public works construction prepared by the Washington State Chapter of the American Public Works Association and the State of Washingtonifor-t ie -current of a project. AQUIFIER - A porous water bearing geologic formation generally restricted to materials capable of yielding an appreciable supply of water. ASTM - American Standards for Testing Materials. AWWA - American Water Works Association. BACKFLOW - A flow, other than the intended direction of flow. BACKFLOW PREVENTION DEVICE - A device, approved by the State Department of Health and by the American Water Works Association, used to counteract back pressure or prevent back siphoning into the distribution system of a public water supply. CITY ENGINEER - The City Engineer for the City of Tukwila or his duly authorized representative. • • CLEARING - The removal of trees and brush from the land, but shall not include the ordinary mowing of grass. CROSS -CONNECTION - Any physical arrangement whereby a public water supply is connected, directly or indirectly, with any other water supply system, sewer, drain, conduit, pool, storage reservoir, plumbing fixture or other device which contains or may contain contaminated water, sewage or other wastes or liquids of unknown or unsafe quality, which may be capable of imparting contamination to a public water supply. DETENTION STRUCTURE - A permanent structure designed to store runoff and discharge at lower rates. DEVELOP LAND - To change the runoff characteristics of a parcel of land. DOE - State Department of Ecology. DOH - State Department of Health. EXEMPT METER - A meter used for measuring water flow which does not enter the sanitary sewer system. Example: landscape irrigation. FIRE MAIN - A water line (usually of six inches [6"] inner diameter or larger) serving fire hydrants or fire protection systems. FLOW ATTENUATION - Detaining or retaining runoff to reduce the peak discharge. GRADING - Any act by which soil is cleared, stripped, stockpiled, excavated, scarified, filled or any combination thereof. HEALTH OFFICER - The Director of the Seattle -King County Department of Public Health or his duly authorized representative. INFILTRATION - The passage or movement of water into the soil surface. METER - A water measuring device approved by the City Engineer. METRO - Regional organization responsible for the collection and treatment of sewage. MULTIFAMILY - "Multifamily" in reference to development is the construction of a building or buildings to house two or more families living independently of each other. • MUTCD - Manual on Uniform Traffic Control Devices, latest edition. OSHA - Occupational Safety and Health Administration. RETENTION STRUCTURE - A permanent structure that provides for the storage of runoff by means of a permanent pool of water. SANITARY SIDE SEWER - A sanitary sewer laid generally perpendicularly from a sanitary sewer main to the property to be served. SEDIMENT - Soils or other materials transported or deposited by the action of wind, water, ice or gravity. SITE - Any tract, lot or parcel of land or combination of tracts, lots or parcels of land which are in one ownership, or are contiguous and in diverse ownership where development is to be performed as a part of a unit, subdivision or project. STABILIZATION - The prevention of soil movement by any various vegetative and/or structural means. STORM DRAINAGE PLAN - A set of drawings and documents submitted as a prerequisite to obtaining a storm drainage permit, which contain all of the information and specifications pertaining to storm water management. SUBSTANTIAL REMODELING - Construction which increases the floor area of an existing building or structure by at least 20% or any alteration or repairs over a 12 month period which increases the building value by at least 25%; or total cumulative building improvements (from 1989) which increase the square footage by at least 25,000 square feet or building value by at least $250,000. TMC - Tukwila Municipal Code. TYPICAL - In reference to standards, typical refers to the guidelines that shall be followed unless a variation is approved by the City. WAC - Washington Administrative Code. WISHA - Washington Industrial Safety and Health Administration. WSDOT - Washington State Department of Transportation. • INTRODUCTION It is the policy of this City to maintain a high level of quality in the construction of public facilities. The standards detailed herein have been prepared to foster consistent requirements of quality and value of both public and private construction, and are to be applied to both. These standards are the minimum criteria and specifications for utility and street construction to be accepted by the City of Tukwila. The City may substitute more stringent design standards and specifications where special conditions warrant. These standards are not a substitute for engineering design; nor are the standards intended to limit innovative design where equal performance in value, safety, and maintenance economy can be demonstrated. • CITY OF TUKWILA INFRASTRUCTURE DESIGN AND CONSTRUCTION STANDARDS page General Design and Construction Standards G-1 Land Alteration Design and Construction Standards L-1 Street Design and Construction Standards R-1 Storm and Surface Water Design and Construction Standards D-1 Flood Protection Design and Construction Standards F-1 Water Distribution Design and Construction Standards W-1 Sanitary Sewer Design and Construction Standards S-1 • • CITY OF TUKWILA INFRASTRUCTURE DESIGN AND CONSTRUCTION STANDARDS GENERAL Page G.1.0 Standards and Specifications References G-1 G.2.0 Permits Fees, Bond Requirements, and Connection Charges: G.2.1 Special Connection Charges G-2 G.2.2 Bonds and Insurance. G-2 G.2.3 METRO Capacity Charge G-3 G.3.0 Design Requirements G-3 G.3.1 Plans G-3 G.3.2 Frontal Improvements and Extensions G-4 G.3.3 Developer's Agreement G-4 G.3.4 Latecomer's Agreement G-4 G.3.5 Acceptance of Public Infrastructure G-4 G.4.0 Construction G-5 G.4.1 Construction in Easements G-5 G.4.2 Performance Bonds G-5 G.4.3 Warranty Guarantee G-5 G.4.4 Errors and Omissions G-6 G.5.0 Inspections G-6 5.1 Field Inspections G-6 5.2 Sampling and Testing G-6 G.6.0 Standard Drawings G-7 • CITY OF TUKWILA INFRASTRUCTURE DESIGN AND CONSTRUCTION STANDARDS GENERAL The standards set forth in this document are the minimum criteria and specifications for utility and street construction to be accepted by the City of Tukwila. The requirements herein apply equally to privately owned as well as to public infrastructure. G.1.0 STANDARDS AND SPECIFICATIONS REFERENCES The City of Tukwila Development Design and Construction Standards are intended to be consistent with the most currently adopted provisions of the following in the order listed: 1. Tukwila Municipal Code. 2. "Standard Specifications for Road, Bridge, and Municipal Construction", current edition, prepared by the Washington State Chapter of the American Public Works Association (APWA) and the Washington State Department of Transportation (WSDOT). 3. State of Washington Shoreline Management Act. 4. State and National Environmental Policy Acts. 5. Standards and specifications of all sewer and water districts providing service within the City. 6. All other Federal, State and local special requirements where applicable. Where conflicts arise between the above and the specifications set forth herein, the more stringent rule shall apply. Exceptions to the minimum criteria and specifications as listed in this document must be granted by the appropriate authority, in writing. G.1.1 REVISIONS Requests for a revision to these standards may be made to the City Engineer. The request should include a brief description of the revision and a draft of the text or drawing including the proposed revision. The City Engineer will determine the appropriate authority for review of the proposal, and forward it to that body. If the revision is accepted, the City Engineer will direct its inclusion in these standards. G-1 • G.2.0 PERMITS FEES, BONDS, AND CONNECTION FEES • The Tukwila Municipal Code Titles 11, 14, 16, 17 and 21 lists all of the City's utility permit fees and are due and payable at time of issuance of the permit(s). ALL FEES SHOULD BE VERIFIED WITH THE CITY PERMIT CENTER. G.2.1 SPECIAL CONNECTION CHARGES Special connection charges may be applicable to both water and sewer services. They are usually based on assessable units of frontage, but can vary greatly. To determine these fees, an owner is required to supply a legal description of the property to the Public Works Department with the plan submittal. G.2.2 J3ONDS AND INSURANCE A bond in the amount of $2,000 is required for any excavation in the public street, to assure pavement restoration. A bond in the amount of $2,000 is required for all hauling permits to assure cleanup and repair of any property damage. A $5,000 bond is required for a house moving or oversize load permit, for repair of any property damage resulting from the move. In addition, at the option of the City Engineer, a performance, maintenance, or warranty bond in the amount of 150% of the value of any work to be done may be required. Contractors doing work on public property within the City of Tukwila are required to maintain a $1,000,000 liability insurance policy with the City named as additional insured. In addition to the conditions listed above, if in the opinion of the City Engineer the nature of the work is such that it may create a hazard to human life or endanger adjoining property or property at a higher or lower elevation, or any street or street improvement, or any other public property, then the City Engineer may require the applicant to file a certificate of insurance. The amount of insurance shall be prescribed by the City Engineer in accordance with the nature of the risks involved. G-2 • • G.2.3 METRO CAPACITY CHARGE To determine these fees, an owner is required to complete the METRO Sewer Use Certification form (available from the City Public Works Department), and return copies to METRO and the local sewer agency. G.2.4 OVERTIME INSPECTION FEES After hours inspections (evenings and weekends), when allowed by the City, are to be paid for by the permit holder at the inspector's overtime hourly rate, (including vehicle, overhead and expenses). G.3.0 DESIGN STANDARDS FOR PLAN SUBMITTALS All plans and specifications for private construction of utility and street development must be presented to the City Public Works Department, via the City permits coordinator, for review and approval prior to the beginning of construction. The design and construction of utility and street development within the City of Tukwila shall meet all of the requirements as listed in the STANDARD SPECIFICATIONS section above. G.3.1 PLANS Plans for multifamily residential, or commercial, or industrial development, or development requiring construction of public infrastructure, within the City of Tukwila, shall be prepared and stamped by a Professional Engineer, licensed by the State of Washington. All plans shall be prepared in accordance with the standard details, plans and specifications contained herein. All plans shall be drawn to scale (maximum size of 24" x 36") and shall be of sufficient clarity to indicate the location, nature, and extent of the proposed work. The plans shall contain sufficient detail to show that all provisions of the standards, laws, and codes will be met. G-3 • • G.3.2 FRONTAL IMPROVEMENTS AND EXTENSIONS In general, a Developer will be required to build frontal improvements and extend utilities along the property frontage (or other areas as appropriate). The extent of these improvements will be determined following a review of all traffic and utility impacts. G.3.3 DEVELOPER'S AGREEMENT A developer extension agreement shall be entered into between the Owner and the City whenever required by the City. Developer's agreements shall be completed as early in the development process as possible, and prior to the issuance of a certificate of occupancy. G.3.4 LATECOMER'S AGREEMENT The City may enter into agreements with developers who have installed public improvements in order to provide for reimbursement of a fair prorated share by any real estate owners who have not contributed to the original cost of such facilities and who subsequently connect to or use the improvement. Such agreements shall be entered into at the time of or before the acceptance of the improvement by the City. The Public Works Department shall approve the prorated share based on a cost and information provided by the original developer. The City shall apply a seventeen percent (17%) charge for administrative costs for service and handling of this assessment. G.3.5 ACCEPTANCE OF PUBLIC INFRASTRUCTURE After completion of construction, turnover documents will be provided to the City along with a request for turnover of the constructed public facilities. These proposed public facilities will be accepted through the City Council or the Mayor's office only, and if not accepted, will remain the sole property and maintenance responsibility of the Developer. It is the responsibility of the Developer to provide the necessary documentation to allow consideration for such turnover through the City's elected officials. G-4 • Easement legal descriptions shall be prepared and the exhibits stamped by a surveyor or engineer licensed to practice in the State of Washington. Easement legal descriptions shall be reviewed and approved by the City prior to acceptance. Developer extension projects shall be deeded to the City for maintenance and operations by bill of sale. G.4.0 CONSTRUCTION All work performed in the construction of public and private infrastructure shall comply with the approved plans. The Contractor is required to maintain a set of approved plans and permits, on the job site, whenever work is being accomplished. All work is to be performed in accordance with all applicable Federal, State and local safety laws. G.4.1 CONSTRUCTION ON EASEMENTS All construction on easements shall be performed strictly in accordance with the easement provisions. The Contractor is responsible to make himself aware of all conditions pertaining to the easement agreement. No work shall be permitted in easement areas until specifically authorized by the City. G.4.2 PERFORMANCE BONDS The City may require performance bonds in the amount of one hundred and fifty percent (150%) of the estimated value for public construction. G.4.3 WARRANTY All public infrastructure shall be warranted by the Contractor for a period of two years, per T.M.C. 11.16.030. G-5 • G.4.4 ERRORS AND OMISSIONS At the discretion of the City Engineer, any significant error or omission in the approved plans or information used as a basis for approval will constitute grounds for withdrawal of any approvals and/or stoppage of any or all of the permitted work. It shall be the responsibility of the Developer to show cause why such work should continue and make such changes in plans as required by the City. G.5.0 INSPECTIONS G.5.1 FIELD INSPECTIONS It is the Contractor's responsibility to arrange a preconstruction conference with the City's Inspector(s) prior to beginning any work. It is the Contractor's responsibility to arrange for inspections 24 hours in advance. The Contractor shall schedule_ inspections by the City Inspector sufficient to confirm that all portions of the work are done in accordance with approved plans and specifications. Work covered prior to inspection will be uncovered at the expense of the Contractor. G.5.2 SAMPLING AND TESTING. Tests and material sampling for the purposes of determining compliance with the specifications, shall be required at the discretion of the City Inspector. All costs incurred for testing or sampling, done at the request of the City Inspector, shall be the responsibility of the Contractor. • INDEX OF DESIGN AND CONSTRUCTION GENERAL STANDARDS RSITE Sample Residential Utility Site Plan Submittal CSITE 1 Sample Commercial Utility Site Plan Submittal (Landscape & Contour) CSITE2 Sample Commercial Utility Site Plan Submittal (Sewer -Storm) CSITE 3 Sample Commercial Utility Site Plan Submittal (Landscape & Contour) G-7 • IC 142' 123' PROPOSED TOPOGRAPHY AT 2' INTERVAL 22' N 200 INDICATE EXISTING TOPOGRAPHY AT 2' INTERVAL ,g6 DOWN SPOUT (D.S.) 196 s. N 523 Birch Street LOWEST FLOOR ELEV=200.82 INV.EL.197.14 CLEAN OUT (C.O.)o D.S. 4'0 SIOE MIN.. 27 2% . 10' 26' 24' 16' MIN. 6"0 STORM DRAIN (S.D.) 84' 0 n 5 CONC. SIDEWALK INDICATE IE AT ALL CONNECTIONS YARD DRAIN 0.5% 8 0 196 INV.EL.186.23 C.O.o SS STUB -3/4" METER 10' MIN -20 MAX\ YARD NEAREST NTORNN O DRAIN 33 8"0 SANITARY SEWER MAIN 62'02X Q 57th AVE S INV.EL.188.7 12"0 S.T. 8"0 WATER MAIN INV.EL.186.23 INV.EL.187.50 NOTES: CONSTRUCTION SHALL BE IN ACCORDANCE WITH THE CITY OF TUKWILA PUBLIC WORKS DEPARTMENT STANDARDS. DOWN SPOUT DRAINS TO CONNECT MINIMUM 5' GOWN STREAM OF FOOTING DRAINS. City of Tukwila SAMPLE RESIDENTIAL UTILITY SITE PLAN SUBMITTAL Not to scale. DATE: 07/30/96 RSITE i • NH 143' 72' 6" SEWER 0 10.R 25 n EXISTING TOPOGRAPHY 100' 0 •0 ASPHALT PARKING -A PROPOSED TOPOGRAPHY 0 0/ • • • C/O • • 45' — 342 ANDOVER PARK WEST ELEV=98.82 55 _______ SPRINKLER PIT TYPE 1I CONTROL MH W/ OIL/WATER SEPARATOR • I 125' i 6' CONC. SIDEWALK BACKFLOW PREVENTISN 12'0 ST ATER METER ,OFM IRRIGATION METER(DEDUCT) CL ANDOVER PARK WEST NOTES: 'MATER MAIN PLANS SHALL BE IN ACCORDANCE WITH THE CITY OF TUKWILA PUBLIC WORKS DEPARTMENT STANDARDS. City of Tukwila SAMPLE COMMERCIAL UTILITY SITE PLAN SUBMITTAL Not to scale DATE: 08/04/94 CSITE 1 RL Mfh10MMLL[/Ai i • :taloa( cxlsrLND r CENTER= i 10'R 143' INDICATE PROPOSED r CENTER.= 72' DS 0 DDS 25 TYPE 1 CB -1J 100' "C._ ASPHALT PARKING--\ MH a aTIRc NTDRANT ��-- 6' CONC. SIDEWALK SCALE: 1l''= 20' NOTES: 12-0 STORM SANITARY SEWER MIN. 27. 6' MIN, S.S. 8% DS INV EL 92.14 Y SEVER MAIN 45' - 342 ANDOVER PARK WEST LOWEST FLOOR ELEV=98.82 INV EL 88.47 55' I• NPI DEE=TIC SERvIC( OCVA VAULT a INV EL85.42 m DETENTION z f ce L INV EL85.50 MH INV EL 87.40 INV EL86.74 QANDOVER PARK WEST TYPE 0 Los ONTROL W/ MAWS SE o DS 125' s I s s 7 -1 -PATER ITER PLANS SHALL BE IN ACCORDANCE WITH THE CITY OF TUKWILA PUBLIC WORKS DEPARTMENT STANDARDS. s J 10' WATER MAIN • City of Tukwila SAMPLE COMMERCIAL UTILITY SITE PLAN SUBMITTAL (SEWER—STORM) Not to scale. DATE: 07/30/96 CSITE2 nsz .\s ltT0.4 143' 25 98,_ EXISTIN TOPOGRAPHY 96 100' 96-----,., ASPHALT 5' 45' - 342 ANDOVER PARK WEST LOWEST FLOOR ELEV=98.82 55' PARKING- \ \ PROPOSED TOPOGRAPHY 94 \P(-- 6 CONC. SIDEWALK SCALE:1 "= 20' 125' Q ANDOVER PARK WEST NOTES: PLANS SHALL BE IN ACCORDANCE WITH THE CITY OF TUKWILA PUBLIC WORKS DEPARTMENT STANDARDS. City of Tukwila SAMPLE COMMERCIAL UTILITY SITE PLAN SUBMITTAL (LANDSCAPE & CONTOUR) Not to ecele. DATE: 07/21/93 CSITE3 NV: ►\eirmerneur ulse • CITY OF TUKWILA INFRASTRUCTURE DESIGN AND CONSTRUCTION STANDARDS FOR LAND ALTERING page L.1.0 Standards and Specifications References L-1 L.2.0 Land Altering Permits L-1 L.2.1 Grade and Fill L-2 L.2.2 Clearing L-2 L.2.3 Impervious Surfaces L-2 L.2.4 Other L-2 L.3.0 Design Requirements L-3 L.3.1 Site Map L-3 L.3.2 Interim Erosion Control Plan L-5 L.3.3 Final Erosion Control Plan L-5 _ L.3.4 Soils Engineering Report L-6 L.3.5 Maintenance Schedule and Agreements L-7 L.3.6 Maintenance Responsibility L-8 L.3.7 Work Schedule and Construction Cost Estimates L-8 L.3.8 Environmental Checklist L-9 L.4.0 Construction L-9 L.5.0 Inspections L-1 1 L.5.1 Field Inspections L-1 1 L.5.2 Sampling and Testing L-1 1 • CITY OF TUKWILA INFRASTRUCTURE DESIGN AND CONSTRUCTION STANDARDS FOR LAND ALTERING All standards and specifications contained herein represent minimum requirements for land altering activity in the City of Tukwila. L.1.0 STANDARDS AND SPECIFICATIONS REFERENCES The City of Tukwila recognizes and uses the following standards and specifications in the order listed: 1. City of Tukwila Design and Construction Standards, current edition. 2. Surface Water Design Manual, King County, Washington, Surface Water Management Division, King County Department of Public Works, current edition. 3. "Standard Specifications for Road, Bridge, and Municipal Construction", current edition, prepared by the Washington State Chapter of the American Public Works Association (APWA) and the Washington State Department of Transportation (WSDOT). 4. All other Federal and State special requirements where applicable. L.2.0 PERMITS A land altering permit is required for any land altering activity within the City of Tukwila, with the following exceptions: 1. Excavations less than five feet (5') in vertical depth or fills less than three feet (3') in vertical depth and involving the removal, deposit or displacement of not more than a total of 50 cubic yards of material for the duration of the entire project. 2. The stockpiling of less than 50 cubic yards of topsoil, peat, sawdust, mulch, bark, chips or solid nutrients on a site. 3. The creation of impervious surfaces, OR clearing a cumulative surface area, of ks1 than 6,000 square feet. L-1 • • 4. Emergency and temporary sandbagging, diking, ditching, filling or similar work during or after periods of extreme weather conditions when done to protect life or property; provided that work undertaken after the period of immediate threat, unless undertaken within a reasonable time and for the purpose of restoring the property to its pre -extreme weather conditions state, shall not be exempt. 5. Agriculture. 6. Commercial stockpiling operations which are in existence at the time the Land Altering Ordinance was enacted and which involve the stockpiling of materials as a normal part of daily operations; provided that the property owner has obtained written approval from the City Engineer. The following list of permits apply to land altering: L.2.1 GRADE AND FILL Required for all construction/grading which does not qualify under the exemptions noted above, and which requires the cut or fill of 50 cubic yards or more. L.2.2 CLEARING Required where a grade and fill permit is not required, and more than 6,000 square feet of land will be cleared. L.2.3 IMPERVIOUS SURFACES Required where more than 6,000 square feet of impervious surface will be created. L.2.4 OTHER Permits from outside agencies, such as the Department of Health, Department of Fisheries, Corps of Engineers, Department of Ecology, WSDOT, are the responsibility of the Developer. The City may require proof of other required permits prior to issuing approval. L-2 • • L.3.0 DESIGN REQUIREMENTS The design of grade and fill plans and erosion control plans within the City of Tukwila shall meet all the requirements as listed in the STANDARDS AND SPECIFICATIONS REFERENCES section above. Unless specified herein, all sediment retention and erosion control devices shall be designed in accordance with the King County, Washington Surface Water Design Manual; King County Public Works Department - Surface Water Management Division; January 1990 or as amended hereafter. The goals of the design shall be to limit the time of exposure to erosion, limit the amount of exposed areas, control storm water runoff, and eliminate or minimize the transport of sediment off-site. L.3.1 SITE MAP - The site map and Land Altering Plan shall contain all the following information on a 24" x 36" plan sheet: 1. Existing and proposed topography of the site depicted at a contour interval sufficiently detailed to define the topography over the entire site. jvAyo 88 a. Two foot intervals shall be the standard unless a greater number of contours are required to defme drainage system directions of flow. National Geodetic Vertical Datum (1929) shall be used as the vertical reference. c. First order leveling shall be applied to site survey work or the level of survey shall be per FEMA requirements, whichever is less restrictive. d. Two foot contour intervals which depict topography up to a maximum of three hundred feet (300') off-site, sufficient to show on -and off-site drainage. 2. Site property lines shown in true location with respect to the plan's topographic information. 1 3. Location and graphic representation of all existing and proposed natural and man made drainage facilities. L-3 • • 4. Detailed plans of all surface and subsurface drainage devices, walls, cribbing, dams and other protective devices to be constructed with or as a part of the proposed work, together with a map showing the drainage area and the estimated runoff of any portions of the area served by a storm water facility, calculated according to runoff design criteria described in the City of Tukwila's Comprehensive Surface Water Management Plan; as amended hereafter. 5. Location and graphic representation of proposed excavations and fills, or on-site storage of soil and other earth material, and any on- site disposal. 6. Quantity of soil or earth material in tons or cubic yards to be excavated, filled, stored or otherwise utilized on-site. 7. Location of proposed final surface runoff, erosion and sediment control measures. 8. Proposed sequence and schedule of excavation, filling and other land altering activities, together with plans for soil or earth material storage and disposal. 9. Specifications for materials and the quantities thereof, to be used as fill on the site. 10. Location of any buildings or structures on the property where the work is to be performed and the location of any buildings, utilities, or structures on land adjacent to the site which are within fifteen feet (15') of property lines or which may be affected by the proposed grading operations (e.g. residual settlement). 11. Quantities, materials, specifications, and locations of any additional erosion and sediment control measures and/or facilities or special requirements prescribed by the City Engineer. L-4 • L.3.2 JNTERIM EROSION AND SEDIMENT CONTROL PLAN - The following information shall be provided in reference to conditions existing on the site during land altering activities: 1. Maximum surface runoff from the site, calculated using the standards described in the King County, Washington Surface Water Design Manual; King County Public Works Department - Surface Water Management Division; January 1990 or as amended hereafter. The Interim Plan shall also contain a delineation and brief description of the following: a. Measures to retain sediment on the site, including the design, specifications, and maintenance schedules for, sediment detention basins. b. Surface runoff and erosion control measures to be implemented, including, but not limited to: types and methods of applying mulches; designs and specifications for diverters, dikes and drains; and, a maintenance schedule for all elements. c. Vegetative measures to be used, including, but not limited to: types of seeds and fertilizer; application rates; the type, location and extent of pre-existing and undisturbed vegetation; and, a maintenance schedule for all elements. L.3.3 FINAL EROSION AND SEDIMENT CONTROL PLAN At the discretion of the City Engineer, the following information may be required in reference to permanent site conditions: 1. Maximum runoff from the site, calculated by a licensed engineer using the rational method. 2. Requirements shall also include descriptions and specifications of the following: a. Sediment and oil retention devices. b. Surface runoff and erosion control devices. c. Vegetative measures utilized for erosion control. 3. A graphic representation of the location of all of the above items L.3.32 may also be required. L-5 • • • L.3.4 SOILS ENGINEERING REPORT A soils engineering report, when required, shall be based on adequate and necessary test borings, and shall contain all information listed in this Section. Recommendations included in the report shall be incorporated into the plans and specifications. 1. Data regarding the nature, distribution, strength and erodibility of existing soils and of soils to be placed on the site, if any. 2. Conclusions and recommendations for grading procedures. 3. Analysis, conclusions, and design recommendations for interim soil stabilization devices and permanent soil stabilization, to include settlement created by the grade and fill operations and potential effects to structures/utilities both on and off of the site. A monitoring program to adequately measure settlement until stability has occurred both on and off of the site shall be required in all cases where such settlement is likely to impact existing structures and/or utilities. In all cases involving the likelihood of settlement, the soils engineer shall provide a risk analysis which predicts the possible monetary liabilities associated with such settlement both on and off of the site. 4. Identification of threshold limits for slope stability and settlement which, when reached, will require the initiation of corrective measures to mitigate adverse impacts both on and off of the site. 5. Opinions and recommendations addressing the adequacy of the sites relative to the development proposed in the Land Altering Permit Application. L-6 • 6. If any of the Land Altering Permit activities are undertaken for structural purposes, the appropriate analysis of the soils shall also be provided per requirements of the current UBC, including determination of the bearing strength of the soils. This report, along with a final soils report by the Soils Engineer of Record, substantiating that the fmal product meets the recommendations of the original soils report (design) shall be provided by the Applicant to the Building Official prior to any building construction at the site. The Soils Engineer of Record for the project shall also inspect and provide a fmal written report on the structural capabilities of the on- site soils. It is the sole responsibility of the Applicant to enlist the services of the Soils Engineer of Record to perform any on-site inspections necessary to provide required soils reports and to substantiate that the land altering activities were conducted as specified in the original soils design report. L.3.5 MAINTENANCE SCHEDULE AND AGREEMENTS 1. Prior to the issuance of a Land Altering Permit the Applicant, Developer or Owner shall provide a monitoring and maintenance schedule for permanent erosion control facilities that is binding on all subsequent owners of land served by the Sediment and Erosion Control Facilities. Such schedule shall provide for access to such facilities by the City Engineer or his/her authorized representative. 2. The maintenance schedule shall be developed for the life of each permanent erosion control system element and shall state the maintenance to be completed, the time period for completion, and who shall perform the maintenance. 3. The maintenance schedule shall be printed on the Land Altering Plan and shall refer to the Land Altering Ordinance as currently modified. L-7 • • • • L.3.6 MAINTENANCE RESPONSIBILITY 1. The owner of the property on which work has been done pursuant to this Ordinance, shall maintain in good condition and promptly repair, restore, or replace all grade surfaces, walls, drains, dams, structures, vegetation, erosion and sediment control measures, and other protective devices in accordance with approved plans. 2. The property owner shall also be responsible for the monitoring and removal of all sedimentation arising from his/her development and clearing the downstream public/private system. 3. Failure to maintain erosion control and sediment retention facilities in accordance with. the approved maintenance schedule may result in the work being performed at the direction of the City Engineer and assessed as a lien against the property where such facilities are located. 4. The City shall be responsible for routine maintenance and operation of all public erosion and sediment controls located within public easements and right-of-ways, following final acceptance of such facilities by the City. L.3.7 WORK SCHEDULE AND CONSTRUCTION COST ESTIMATES 1. The work schedule shall include the proposed time(s) when all land alterations will occur and final improvements will be accomplished. The Applicant must also submit the proposed land altering schedule, including installation of temporary and permanent erosion sediment control devices and schedules for monitoring, operation, and maintenance of these facilities. 2. Construction cost estimates for the sediment and erosion control facilities required and all land altering activities planned in accordance with the sections above, shall be provided in sufficient detail to allow the City Engineer to determine the appropriate dollar amounts for required securities and insurance. L-8 • • • L.3.8 ENVIRONMENTAL CHECKLIST The Land Altering Permit Application will not be processed or issued prior to environmental review and sign -off from the Department of Community Development indicating that such review has been conducted and that the proposed land altering activities are in accordance with applicable City Codes. L.4.0 CONSTRUCTION All work performed shall be per approved plans only. The Contractor is required to maintain a set of approved plans and permits, on the job site, whenever work is being accomplished. All work is to be performed in accordance with all applicable Federal, State and local safety laws. Where practical, asphalt treated base shall be applied to all areas to be paved as soon as the surface is cleared and prepared. Within thirty (30) days following the completion of construction or development on any site, the owner shall plant all required vegetative cover in quantities sufficient to minimize erosion upon maturity and complete all non -vegetative ground cover. If the time of the year does not permit successful planting, other measures shall be temporarily implemented to control erosion. It is the Contractor's responsibility to arrange for and comply with the following: A. Notify the ' + e r within the 48 hour period prior to commencing any land altering activity. B. Notify th ity Engine after their installation. of completion of any control measures within 48 hours C. Obtain permission in writing from the Ci Engineer prior to modifying the control plan. D. Install all control measures as identified in the approved erosion control plan. E. Maintain all road drainage systems, storm water drainage systems, control measures and other facilities as identified in the control plan. F. Repair any siltation or erosion damages to adjoining surfaces and drainage facilities resulting from the land altering activities. L-9 • • G. Inspect the construction control measures at least once each week and/or as indicated on the approved inspection schedule, and make needed repairs immediately. H. Keep a copy of the control plan on-site. The Permittee shall at all times protect Sensitive Areas, their Buffers, and adjacent private properties and public right-of-ways or easements from damage during grading operations. The Permittee shall restore, to the standards in effect at the time of the issuance of the permit, Sensitive Areas, their Buffers, and public and private properties and improvements damaged by the permittee's operations. Any Land Altering Permit issued by the City may be suspended or revoked, after written notice is given to the permittee, for any of the following reasons: A. Any violation(s) of the conditions of the permit. 1. Changes in site runoff characteristics upon which the permit is granted. 2. Construction not in accordance with the approved plans. 3. Noncompliance with correction notice(s) or stop work order(s) issued for erosion or sediment controls. 4. An immediate danger exists in a downstream area or adjacent property as determined by the City Engineer. B. In addition to the action under the above section, the City Engineer may post a site with a "stop work" order directing that all land altering activity cease immediately. The issuance of a "stop work" order may include any "discretionary conditions" or "standard requirements" which must be fulfilled before work under the Land Altering Permit may continue. C. No person shall continue or permit the continuance of work in an area covered by a "stop work" order, except work required to correct an imminent safety hazard as prescribed by the City Engineer. D. The cost of any corrective measures shall be borne by the Developer, Owner or Permittee Applicant. L-10 • • L-5.0 INSPECTIONS L-5.1 FIELD INSPECTIONS The Contractor shall schedule inspections by the City inspector sufficient to confirm that all portions of the work are done in accordance with approved plans and specifications. In addition to the notification requirements, the Permittee is required to comply with the following: A. Prior to the issuance of a Land Altering Permit, the Applicant shall submit to the Public Works Inspector for approval, a proposed inspection schedule. B. At the City Engineer's option, "as -built" certification by a registered Professional Engineer licensed in the State of Washington shall be required to certify that the facility has been constructed as shown on the "as -built" plans and meets approved plans and specifications. "As -built" plans may also be required. When required, these elements shall be submitted prior to permit sign -off. C. The Soils Engineer's final report, if required, (e.g. for placement of all structural fills) shall be resubmitted prior to final inspection and permit sign -off. Upon completion of all required project elements, the Permittee shall request a final inspection by contacting the Public Works Inspector. The permit process is complete upon sign -off of the issued permit(s) by the City Engineer. Work covered prior to inspection will be uncovered at the expense of the Contractor. L.5.2 SAMPLING AND TESTING Compaction tests and material sampling and testing for purposes of determining compliance with the specifications, shall be required at the discretion of the City Inspector. All costs incurred for testing or sampling, done at the request of the City Inspector, shall be the responsibility of the Contractor. Determination of field density of compacted earth will be per ASTM D1557 "Standard". L-11 • CITY OF TUKWILA INFRASTRUCTURE DESIGN AND CONSTRUCTION STANDARDS FOR STREETS page R.1.0 Standards and Specifications References R-1 R.2.0 Permits R-1 R.2.1 Channelization/Striping/Signing R-1 R.2.2 Curb Cut/Access/Sidewalk R-1 R.2.3 Hauling R-2 R.2.4 Oversized Load/Housemoving R-2 R.2.5 Street Use R-2 R.2.6 Franchise Utilities R-2 R.2.7 Other R-2 R.3.0 Design Requirements R-2 R.3.1 Plans R-2 R.3.2 Frontal Improvements R-3 R.3.3 Utilities R-3 R.3.4 Sight Distance R-3 R.3.5 Grade R-3 R.3.6 Landscaping R-3 R.3.7 Traffic Signals and Illumination R-4 R.4.0 Construction R-4 R.4.1 Roadway Crossings R-5 R.4.2 Work in Active Roadways R-5 R.5.0 Inspections R-5 R.5.1 Field Inspections R-5 R.5.2 Sampling and Testing R-6 R.6.O Standard Drawings R-7 t CITY OF TUKWILA INFRASTRUCTURE DESIGN AND CONSTRUCTION STANDARDS FOR STREETS All specifications contained herein represent minimum requirements for roadway construction in the City of Tukwila. R.1.0 STANDARD SPECIFICATIONS REFERENCES The City of Tukwila recognizes and uses the following standards and specifications in the order listed: 1. City of Tukwila Design and Construction Standards, current edition. 2. City of Tukwila Municipal Code. 3. "Standard Specifications for Road, Bridge, and Municipal Construction", current edition, prepared by the Washington State Chapter of the American Public Works Association (APWA) and the Washington State Department of Transportation (WSDOT). 4. U.S. Department of Transportation Manual on Uniform Traffic -Control Devices (MUTCD), as amended and approved by Washington State Department of Transportation. 5. "A Policy on Geometric Design of Highways and Streets", AASHTO, current edition. 6. All other Federal and State special requirements where applicable. R.2.0 PERMITS A street -use permit is required for any construction activity within the public right-of-way or easement. The following list of permits apply to street use: R.2.1 CHANNELIZATION/STRIPING/SIGNING. This permit is required for new streets and modifications to existing street striping and signs. R.2.2 CURB CUT/ACCESS/SIDEWALK. Required for all new access points, and modifications of existing access. R-1 • • R.2.3 HAULING. Required for r transportation over City Streets of dirt, debris, construction materials, etc. which in total amount to more than 50 cubic yards of material. R.2.4 OVERSIZED LOAD/HOUSEMOVING. Required when moving an oversize load over City streets. R.2.5 STREET USE. Required for any lane closure, special event, or other street use not specifically covered under a separate permit. R.2.6 FRANCHISE UTILITIES. Franchise Utilities may be issued a single permit, in accordance with their franchise agreement, which covers all street use actions. Franchise Utilities are otherwise bound by all other requirements of this chapter. R.2.7 OTHER, Permits from outside agencies, such as the Department of Health, Department of Fisheries, Corps of Engineers, Department of Ecology, WSDOT, are the responsibility of the Developer. The City may require proof of other required permits prior to issuing approval. R.3.0 DESIGN REQUIREMENTS The design of roadways within the City of Tukwila shall meet all the requirements as listed in the STANDARD SPECIFICATIONS section above. The design shall include the following: R.3.1 PLANS, Plans for multifamily residential, or commercial, or industrial development, or development requiring construction of public infrastructure, within the City of Tukwila, shall be prepared and stamped by a Professional Engineer, licensed by the State of Washington. All plans shall be prepared in accordance with the standard details, plans and specifications contained herein. R-2 • • All plans shall be drawn to scale (maximum size of 24" x 36") and shall be of sufficient clarity to indicate the location, nature, and extent of the proposed work. The plans shall contain sufficient detail to show that all provisions of the standards, laws, and codes will be met. R.3.2 FRONTAL IMPROVEMENTS, Frontal improvements are required for all development, except a single family residential home, with no -protest agreement, or improvements which do not meet the criteria for substantial remodeling. Frontal improvements may include: installation, relocation or modification of sidewalk, curb and gutter; street drainage; street lighting; traffic controls; utilities; landscaping; street widening; pavement markings and street signs. R.3.3 UTILITIES - UNDERGROUND INSTALLATION. All new and rebuilt utilities, including telephone, telegraph, cable television, and electrical power, are to be installed underground per TMC 13.08. Joint trenches shall be used where practical. R.3.4 SIGHT DISTANCE. The sight distance for all horizontal and vertical curves, intersections and access points shall be noted on the plans, and sight -line setbacks shall meet AASHTO standards. R.3.5 GRADE. The maximum recommended grade for all roadways and driveways shall be fifteen percent (15%). R.3.6 LANDSCAPING. Trees and landscaping shall meet all zoning requirements, and: 1. No tree shall be planted within two feet (2') of a sidewalk or pavement edge. 2. No landscaping shall be planted or allowed to grow over two feet (2') in height within thirty feet (30') of an intersection. R-3 • • 3. No landscaping shall be planted or allowed to grow which overhangs less than eight feet (8') above any sidewalk, or less than fourteen feet (14') above any roadway. 4. No one shall plant in any public place any maple, lombardy poplar, cottonwood or gum, or any other tree, the roots of which cause injury to the sewers, sidewalks or pavements, or which breed disease dangerous to other trees or to the public health or allow to remain in any public place any planted tree which has become dead or is in such condition as to be hazardous to the public. R.3.7 TRAFFIC SIGNALS AND ILLUMINATION Luminaires shall be GE Model #M400AZPOWR/Door Order #M4ARxxSON2GMS31. XX=20, 25 or 40 to be determined by designer. Induction loop vehicle detector loops shall be installed per standard specification 8-20.3 (14) C, & Standard Plan J-8, except: loop sealant shall be manufactured by Crafco or Albina Asphalt. Meeting ASTM D312 Type 4 and installed by pressure injection not hot pour application. Pedestrian signed heads shall be as manufactured by ICC, Model #4092 (Neon) W/Z crate visions, Type E, (clamshell) mounting. Emergency vehicle preemption detectors shall be 3M Opticom Model 521 with 3M #138 detector cable from Opticom to controller with no splices. Wire and loop splice kits shall be 3M vinyl mastic pads Model #2200 (or #2210 rolls) unless federally funded - then use Scotchcast Model 82 epoxy splice kit. R.4.0 CONSTRUCTION All work performed in the construction of City streets shall be per approved plans only. The Contractor is required to maintain a set of approved plans and permits, on the job site, whenever work is being accomplished. As -built mylars and Autocad 3.5" discs will be required at the completion of the project, prior to fmal acceptance. All work is to be performed in accordance with all applicable Federal, State and local safety laws. R-4 • • R.4.1 ROADWAY CUTS. Roadway crossings for utilities shall be by jacking, tunneling, or boring with "windows" or shafts not less than twenty feet (20') apart. Roadway open cuts are allowed on an exception basis only: when roadway conditions warrant or in cases of undue hardship. Open cuts in the traveled roadway may require controlled density fill or an overlay, at the discretion of the City Engineer. Crossing under State Highways will also require approval from the State Department of Transportation. Crossings involving railroads or other easements and rights-of-way will also require approval from the appropriate agency. R.4.2 WORK IN ROADWAYS, Work in roadways must display signs, cones, flags, etc. per the MUTCD. All work requiring lane closures must be by permit only. All roadways shall be kept free of dirt and debris, using street sweepers. Use of water trucks shall be at the direction of the City Inspector. Pedestrian and vehicular access to occupied buildings shall be maintained at all times except where prior approval from the building owner and the City has been obtained. R.5.0 INSPECTIONS R.5.1 FIELD INSPECTIONS. It is the Contractor's responsibility to arrange for inspections 24 hours in advance. The Contractor shall schedule inspection by the City Inspector sufficient to confirm that all portions of the work are done in accordance with approved plans and specifications, including: 1. Before backfilling, for compliance with all construction standards. 2. At completion of sub -grade, for compaction and grade. 3. After placement of rock, for compaction and material quantity and quality. R-5 4. During and after placement of finish course for compaction and material (quantity and quality). 5. After placement of forms and before pouring for line, grade and compaction. 6. Prior to the placement of any materials which would preclude full and complete inspection of construction which will be buried or covered. Work covered prior to inspection will be uncovered at the expense of the Contractor, R.5.2 SAMPLING AND TESTING. Compaction tests and material sampling and testing for purposes of determining compliance with the specifications, shall be required at the discretion of the City Inspector. All costs incurred for testing or sampling, done at the request of the City Inspector, shall be the responsibility of the Contractor. Determination of field density of compacted earth will be per ASTM D1557 "Standard". INDEX OF STREET STANDARD PLANS FOR THE CITY OF TUKWILA Figure 1 Functional Classification Map R-1 Typical Roadway Section R-2 Typical Cul-de-sac R-3 Pavement Patching Detail R-4 Bollard Detail R-5 Rockery and Sidewalk Safety Rail R-6 Mailbox Installation R-7 Street Monument R-8 Residential Driveway R-8A,B,C Alternate Residential Driveways R-9 Commercial Driveway R-10 Street Name Sign Detail R-11 Sidewalk Detail R-12 Curb Ramp Detail R-13 Raised Pavement Marker Placement R-14 Typical Sign Installation R-15 Private Commercial Street Opening • R-16 Non -continuous Left Turn R-17 Two-way Left Turn Lane R-18 Raised Pavement Marker Dimensions (Lane Marker) R-19 Pavement Arrows R-20 Crosswalk Design & Placement R-21 Street Light Pole 30' and 40' Mounting Height R -21A Alternate Residential Street Light Pole 30' & 40' Mounting Height R-22 Service Cabinet R-24 Pedestrian Signals R-25 Street Layout Light R-27 Composite Sidewalk/Luminaire Foundation R-28 Ground Rod Box R-29 Catch Basin Surround R-30. Induction Loop Schematic • R-7 • MO • • •. 1 • • • • c TY OF UK FIGURE 1 • II,A PUNLIIJNAL \TILIN S 9) St S99St SIXSt slot nt►, FREEWAY PRINCIPAL MINOR COLLECTOR FUTURE STREETS & CLASSIFICATIONS S121St n■• 9121St Foster Goff' Course •, • •9 Cou"'se • • • ■■ NOIIII•111I11111 IIIIII11111111111I , 1 s1 4. Per pT oCk Id 168 St • itI • • 1 vt Ind Dr Trland Dr 1; St 0 1500' 3000' 6000' `•41111ttttl11t1111R1111111111 S 11111111 FILE: H:\MAPS\TRAFFIC\FUNCT.DWG • • Utilit Eosemen 27. Right—of—Way Pavement Width 27. 2% �0 O 0;,0 0 0 0 0,,0,,011 r, Closs 8 Aspholt Concrete Crushed Surfocing Closs 8 Grovel Thickness os required by Engineer's design. Storm Sewer & Cotch Basin (See detoil D-2) Cement Concrete Curb and Gutter Cement Concrete Sidewolk " of 5/8" Minus Crushed Rock TYPE OF STREET RIGHT—OF— •Y (FEET) PAVEMENT WI• (FEET ARTERIAL PRINCIPAL 80 60 MINOR 75 48 COLLECTOR COMMERCIAL 60 48 RESIDENTIAL 60 6 ACCESS STREET COMMERCIAL 60 48 RESIDENTIAL 50 30 CUL—DE—SAC , ROADWAY 40 28 TURN•UND 110 90 PRIVJ 30 20 NOTES: 27. 10'—. - Min. Utility Eosement 1. All specificotions sholl be os per the combined specificotions prepored by the Woshington Stote Deportment of Transportation and the American Public Works Associotion. Washington Stote Chapter entitled "(Present) Stondord Specifications for Roods. Bridge, and Municipol Construction". 2. See Detail R-11 for the sidewolk width. 3. Street clossificotions ore designoted by Ordinonce. 4. Privato tree ma serve up to 8 lots. a • •e - 00' '• -•• - •r �e��r„/ su bfect to 0W-royal—by—We—PO • r s Director. ddCWWW 5. Pavement section must be designed for o minimum of HS20 looding. City of Tukwila TYPICAL ROADWAY SECTION Not to scale,. DATE: 01/14/94 R-1 nr .WhIMOR OVNIt• ao /`,....---\Right—Of—Way Line cofSidewalk Fa \ Facee C of Curti -- 45' R CUL-DE-SAC Signing Per M.U.T.C.D. 60' Min. 10' 45' R 7K----- 15' R. Min. HAMMERHEAD (Requires opprovol by the Fire Dept. & City Engineer). pA — Vories 28' Min. OB — Varies 40' Min. ©— 45 Min. pD-55Min. City of Tukwila NOTES: 1. A turnoround is required for all dead end streets longer than 150' in length. 2. All Signs including Deod End to meet the requirements of the current Stondord Specifications for Rood. Bridge, and Municipol Construction and current MUTCD. 3. A hammerhead requires prior opprovol by the Fire Deportment and City Engineer. CUL-DE-SAC/HAMMERHEAD Not to Beale. DATE: 01/14/94 R-2 MC: .A...o.,e,• -,o., • • i • Asphalt Concrete or Bituminous Plont Mix Replocement Patch Cut with Pneumatic Povement Cutter Existing Aspholt Pavement Sow Cut Concrete 1509. of Existing Depth Existing Concrete Pavement It Existing Rigid Bose 5/8" Minus Compocted Crushed Rock unless otherwise Ordered by The City. Existing Oil Mot 5/8" Minus Compacted Crushed Rock unless / otherwise Ordered by / The City. TYPICAL PATCH FOR RIGID PAVEMENT Sow Cut Aspholt Concrete or Bituminous Plant Mix Replocement Patch 150% of Existing Depth Existing Aspholt Povement 5/8" Minus Compocted Crushed Rock unless otherwise Ordered by The City. / // TYPICAL PATCH FOR FLEXIBLE PAVEMENT // 5/8" Minus Compacted Crushed Rock unless otherwise Ordered by The City. NOTES: 1. All work to conform to the current Standard Specifications for Rood. Bridge. and Municipol Construction. 2. A minimum of o one year guarantee is required on all povement patching and overlays. 3. Controlled density fill in place of crushed rock moteriol moy be required in coses of recenk povement overloy. • City of Tukwila PAVEMENT PATCHING Not to scale. DATE: 07/25/96 R-3 • 42" 24" J 5" TYP. 1"CHAMFER 045'-4 SIDES ' 1/2" t t UNDISTURBED SUBGRADE OR // COMPACTED BACKFILL 3" L J 6" /X /\ /\ /. 1-•— 18"-i PERMANENT BOLLARD 5" REFLECTORS OR REFLECT TAPE 1" GALV. EYE BOLT WITH SHOULDER DRILL 7/16" HOLE FOR PADLOCK. 8" x 8" TIMBER (USE TIMBER–FORM MODEL 2561 AVAILABLE FROM VANCO ASSOCIATES 771-1412 OR 1-800-826-2684 CONC. FOOTING \/ 42" 1 1/2" t t 1 18" WASHED ROCK TYP. 1 -CHAMFER 045'-4 SIDES 1 15" 5- i 1/2" GALV. MACHINE BOLTS WITH WASHERS. PEEN BOLT ENDS AFTER TIGHTENING. SET FLUSH WITH WOOD SURFACE BOTH SIDES. 1" GALV. STEEL ROD–DRILL 7/16" HOLE FOR PADLOCK (TYP. BOTH SIDES). PADLOCKS BY OWNER %��/�\/\/�/\/////\\//\//\\� Il. 30"1 UNDISTURBEDSUBGRADE ORCOMPACTEDBACKFILL6".: .\\/\ } \/%\//%\//\ ,V, \//` I-- 18"-I REMOVABLE BOLLARD NOTES: FINISH GRADE CONC. FOOTING – TOP EDGE MUST BE CLEAN EVEN JT. BETWEEN A.C. & CONC.– BROOM FINISH TOP OF CONC. 3" I.D. GALV. STEEL PIPE – 2'6" LONG 4" I.D. GALV. STEEL PIPE – 2'10" LONG WASHED ROCK 1. TIMBER SHALL BE DOUGLAS FIR. DENSE CONSTRUCTION GRADE. AND SHALL BE PRESSURE TREATED. 2. STEEL TUBE SHALL CONFORM TO ASTM A53 OR ASTM A53 GRADE A. 3. NUTS. BOLTS. & WASHERS SHALL CONFORM TO ASTM A307. 4. ALL STEEL PARTS SHALL BE GALVANIZED. 5. CONCRETE SHALL BE CLASS C. 6. REMOVABLE BOLLARDS ARE REQUIRED FOR RESTRICTED ACCESS ROADWAYS SUCH AS MAINTENANCE EASEMENTS. City of Tukwila BOLLARD DETAIL Not to .calci DATE: 06/17/96 R-4 i • No roadways or porking Tots in this oreo. Min. 16" 2 o flatter 1 / / No footings of structures / / (including other rockeries) / / / may beor in stippled oreo. / / 1 AQp 4' Max Height 6 /11 2 Free—draining bockfill; min.12" / wide (oyer of 2"-4" quarry / spoils adjacent to rockery. 1' Min. Undisturbed soil 2" Steel Pipe Roiling with Welded Joints Galvanized. Ornamental Iron Hondroil moy also be permitted with City Engineer Approvol. 12" 12" Grout Sleeve 17" Stoble cut foce in notive moteriol 1" diameter washed grovel; min. 6" cover over pipe; min. 2" grovel under pipe, 12" wide. Min. 6" dia. perf. PVC, SDR 35 pipe/AASHTO M278/ASTM 3034; min. 1% continuous slope to outlet; pipe wroped in filter fobric(Mirofi or equiv.) 1' Min. SEE ABOVE FOR ROCKERY DETAILS Place pipe between rocks to ovoid weight. NOTES: 1. Rock shall be sound and hove minimum density of 160 pounds per cubic foot. 2. The long dimension of all rocks shall be placed perpendiculor to the wall. Eoch rock should bear on two rocks in the tier below. 3. Rockeries ore erosion—control structures. not retaining walls. Notive moteriol must be stable and free—stonding in cut face. 4. Improved walking surfoces above and odjocent to rockeries over 30" in height shall be protected by o roil conforming to UBC 1711. 5. Bose rock is 2—mon minimum. (2 mon rock 200-700 Ib 18"-281 City of Tukwila ROCKERY & SIDEWALK WITH SAFETY RAIL Not to scale. DATE: 07/30/96 R-5 r7 Varies 4 BOXES MINIMUM — 10 MAXIMUM VARIATIONS SUBJECT TO APPROVAL POST 2-3/8" 00 GALV. STEEL FACE OF CURB , n r FRONT ELEVATION (FROM STREET) NOTES: Curb SIDE ELEVATION 1. MAILBOX MUST BE TYPE 'APPROVED BY THE POSTMASTER GENERAL' WITH A UNIFORM BOX STYLE AND METHOD OF ADDRESS IDENTIFICATION PER EACH STANDARD. 2. LOCATION IS SUBJECT TO APPROVAL BY THE CITY FOR PROTECTION OF VIEWS AND ACCESS AND IS TO BE SHOWN ON THE STREET IMPROVEMENT PLANS. 3. THIS SKETCH DEPICTS A MINIMUM STRUCTURAL AND DIMENSIONAL STANDARD. INNOVATIVE DESIGNS MEETING THESE MINIMUMS MAY BE ACCEPTED. City of Tukwila MAILBOX INSTALLATION Not to scale. r DATE: 01/14/94 R-6 rat ok‘sumomovpsovv....aga • TOP VIEW — FRAME & COVER 1/2" 3/4" Rivet//i i 2 1/4 j 6" O i A, 1/2" 01 7- 3/16' '/ / 2 1/2" 1/2" 1/4"x1 1/2" Bolt / 18" Min. 6" Min. 1 1/4" 12" Conc 20" Choin, 15" long BOTTOM VIEW OF COVER Min. Diameter Bross Disc Min. #4 Rebor ete Monument Closs C Concrete SECTION — FRAME & COVER NOTES: 1. Machine Bearing Faces of Cover & Case to insure Positive Fit. 2. Castings sholl be gray iron, A.S.T.M. Designation A-48. Class 40. and sholl conform further to opplicoble Section of these Specifications. 3. Monuments are required of street intersections, and must be set by o surveyor licenced to practice os such by the Stote of Washington. City of Tukwila STREET MONUMENT WITH FRAME & COVER Not to scale. DATE: 01/14/94 I R-7 i • Premotded Exp. Joint (Typical) A�/ 2" Min. or more os directed. Top of Curb at Driveway 5% 5/8" CRUSHED ROCK SECTION A—A NOTES; Drivewoy (Max. Reconended Grade is 157.) 18" CURB DETAIL 1. CONCRETE SHALL BE CLASS 8 OR BETTER THAN 5 1/2 SACK, 3000 PSI. 2. INSPECTION REOUIRED BEFORE PLACING CONCRETE. AT LEAST 24 HOUR NOTICE MUST 8E GIVEN TO TUKWILA PUBLIC WORKS. 3. ALL DRIVEWAY APRONS SHALL 8E A MIN. 6" THICK. 4. WHERE DRIVEWAY WIDTHS EXCEED 15% A 3/8...5 1/2" EXPANSION JOINT SHALL BE PLACED LONGITUDINALLY ALONG THE CENTERLINE. 5. ALL WORK, SHALL BE PERFORMED IN ACCORDANCE WITH APWA/WSDOT PLANS AND SPECIFICATIONS OR AS DIRECTED BY THE CITY OF TUKWILA. 6. AN ASPHALT APRON MAY BE USED IN AREAS WHERE NO CURB EXISTS. 7. REMOVAL OF EXISTING CONCRETE CURB. GUTTER OR SIDEWALK SHALL BE BY SAW CUT TO THE NEXT JOINT. • City of Tukwila RESIDENTIAL DRIVEWAY Not to scale. DATE: 07/24/96 R-8 ?L teCoaCMOACIVI -COM Prenolded Full Exp. Join 18", 3' 4' Planter Sidewalk 5' 6 2" Min. or more 05 directed. 6" Top of Curb at Driveway • 5% 314 8" : `a"x��< •c/ Driveway c'���'x�'��a� ��'/� CMax. Reconnended Grade is 15%) 2" - 5/8" CRUSHED ROCK SECTION A—A 18" CURB DETAIL NOTES: 1. CONCRETE SHALL BE CLASS 8 OR BETTER THAN 5 1/2 SACK. 3000 PSI. 2. INSPECTION REQUIRED BEFORE PLACING CONCRETE. AT LEAST 24 HOUR NOTICE MUST BE GIVEN TO TUKWILA PUBUC WORKS. 3. ALL ORIVEWAY APRONS SHALL BE A MIN. 6" THICK. 4. WHERE DRIVEWAY WIDTHS EXCEED 15'. A 3/8"•5 1/2" EXPANSION JOINT SHALL BE PLACED LONGITUDINALLY ALONG THE CENTERUNE. S. ALL WORK SHALL BE PERFORMED IN ACCORDANCE WITH APWA/WSOOT PLANS ANO SPECIFICATIONS OR AS DIRECTED BY THE CITY OF TUKWI A. 6. AN ASPHALT APRON MAY BE USED IN AREAS WHERE NO CURB EXISTS. 7. REMOVAL OF EXISTING CONCRETE CURB, GUTTER OR SIDEWALK SHALL BE BY SAW CUT TO THE NEXT JOINT. 8. THIS ALTERNATE SHOULD BE USED ONLY AFTER STUDYING CLOSENESS OF DRIVEWAYS. DRAINAGE. TOPOGRAPHY. DRIVEWAY GRADES. RIGHT-OF-WAY. ETC. 9. PLANTER TO BE MAINTAINED BY ADJACENT PROPERTY OWNER BY AGREEMENT. • City of Tukwila ALTERNATE RESIDENTIAL DRIVEWAY 1 of 3 Not to scale. DATE: 07/24/96 R -8A ♦ Prenolded Exp. Joint C Typical ) Top of Curb of Drivewoy 2" Min. or more 5% as directed. 2"-5/8" CRUSHED ROCK Depends On Driveway Profile T (Max. Recommended Grode is 15%) SECTION A—A NOTES; .� 6" 6" , 18' CURB DETAIL 1. CONCRETE SHALL BE CLASS B OR BETTER THAN 5 1/2 SACK. 3000 PSI. 2. INSPECTION REQUIRED BEFORE PLACING CONCRETE. AT LEAST 24 HOUR NOTICE MUST BE GIVEN TO TUKWILA PUBLIC WORKS. 3. ALL DRIVEWAY APRONS SHALL BE A MIN. 6" THICK. 4. WHERE DRIVEWAY WIDTHS EXCEED 15'. A 3/8"1'5 1/2" EXPANSION JOINT SHALL BE PLACED LONGITUDINALLY ALONG THE CENTERLINE. 5. ALL WORK SHALL BE PERFORMED IN ACCORDANCE WITH APWA/WSDOT PLANS AND SPECIFICATIONS OR AS DIRECTED BY THE CITY OF TUKWILA. 6. AN ASPHALT APRON MAY BE USED IN AREAS WHERE NO CURB EXISTS. 7. REMOVAL OF EXISTING CONCRETE CURB. GUTTER OR SIDEWALK SHALL BE BY SAW CUT TO THE NEXT JOINT. • • City of Tukwila RESIDENTIAL DRIVEWAY 2 of 3 Not to scale. DATE: 07/25/96 R -8B i 'LC ONSTAKNIOVOMNI-SerNC 3/4' Lip Expansion Joint (Eliminate if Monolithic Pour) 6" T Sidewalk 5' 6' 2" Min. or more as directed. Top of Curb of Driveway 5% 3/4'1 2" — 5/8" CRUSHED ROCK SECTION A—A Driveway (Max. Recommended Grade is 15%) 18" CURB DETAIL NOTES: 1. CONCRETE SHALL BE CLASS 8 OR BETTER THAN 5 1/2 SACK. 3000 PSI. 2. INSPECTION REOUIRED BEFORE PLACING CONCRETE. AT LEAST 24 HOUR NOTICE MUST 8E GIVEN TO TUKWILA PUBLIC WORKS. 3. ALL DRIVEWAY APRONS SHALL BE A MIN. 6" THICK. 4. WHERE DRIVEWAY WIDTHS EXCEED 15', A 3/8''5 1/2" EXPANSION JOINT SHALL BE PLACED LONGITUDINALLY ALONG THE CENTERLINE. 5. ALL WORK SHALL BE PERFORMED IN ACCORDANCE WITH APWA/WSDOT PLANS AND SPECIFICATIONS OR AS DIRECTED BY THE CITY OF TUKWILA. 6. AN ASPHALT APRON MAY BE USED IN AREAS WHERE NO CURB EXISTS. 7. REMOVAL OF EXISTING CONCRETE CURB, GUTTER OR SIDEWALK SHALL BE BY SAW CUT TO THE NEXT JOINT. 8. THIS ALTERNATE SHOULD BE USED ONLY AFTER STUDYING CLOSENESS OF DRIVEWAYS. DRAINAGE. TOPOGRAPHY, DRIVEWAY GRADES. ETC. • • City of Tukwila ALTERNATE RESIDENTIAL DRIVEWAY 3 of 3 Not to scale. DATE: 07/15/96 R -8C nc ►.vwowouwauI.«.o.c i ♦ • SCORE JOINTS Sp. /,yl/R Akt 04, HANDFORM ALONG RADIUS FOR SMOOTH TRANSITION EXPASION JOINT (PREMOLDED TYP.) EXPANSION JOINT ELIMINATE IF GUTTER 8 APRON ARE 4/4, ¢¢ POURED MONOLITHIC OJ,, sfp R � hF pRO,o RTSp. Y 18' See R 11 2' Min. or more as directed. Top of Curb at Driveway 5% 3/4" 5/8" CRUSHED ROCK SECTION A—A NOTES; Driveway CMax. Reconended Grade is 157.) 18" CURB DETAIL 1. INSPECTION REQUIRED BEFORE PLACING CONCRETE. AT LEAST 24 HOUR NOTICE MUST BE LIVEN TO TUKWILA PUBUC WORKS FOR INSPECTION. 2. CONCRETE SHALL BE CLASS 8 OR BETTER THAN 5 1/2 SACK. 3000 PSI. 3. ALL DRIVEWAY APRONS SHALL BE A MIN. 6" THICK. 4. ALL WORK SHALL BE PERFORMED IN ACCORDANCE WITH APWA/WSDOT PLANS AND SPECIFICATIONS OR AS DIRECTED BY THE CITY OF TUKWILA. 5. REMOVAL OF EXISTING CONCRETE CURB. GUTTER OR SIDEWALK SHALL BE TO THE NEXT EXPANSION JOINT; SCORE JOINTS MUST BE SAW CUT AND REPLACED WITH EXPANSION JOINT. 6. DRIVEWAYS WITH HIGH VOLUME (AS NOTED BY CITY ENGINEER) MAY BE APPROVED FOR INTERSECTION TYPE ACCESS. 7. TURNING RESTRICTIONS MAY BE APPLIED BY THE CITY ENGINEER. • City of Tukwila COMMERCIAL DRIVEWAY Not to scale. DATE: 07/25/96 R-9 r0.[. PAS ra.a.aauo.aa-aa c PKWY • Post Mounted Mast Arm Mounted 72" Minimum U <WIL 18" Minimum SIGN; Sheet Aluminum, .080 Gouge. sized as needed with rounded corners. BACKGROUND. Green. Engineer grade Letters. Locol Access Intersection 4" UC B Series with 2" UC C Series. Arterial Intersection — 6" UC B Series with 3" UC C Series BORDER: — SCREEN PRINT 5/16" wide with 3/4" rodius on corners. Post — 3" min. face dimension. U chonnel gals. steel. 2 lbs/ft min. SIGN; Sheet Aluminum, 0.100. sized as needed with rounded 18" corners. BACKGROUND. Green, High Intensity Reflective 3M or opproved equol. Letters; White. High Intensity Reflective 3M or opproved equol. 8" Series D, or os approved. BORDER: — SCREEN PRINT 5/8" wide with 3/4" rodius on corners. MAST ARM STREET NAME SIGN STAINLESS STEEL BOLT & WASHER STAINLESS STEEL BANDS (3/4" X 0.045") 4 MAST ARM STREET NAME SIGN FLARED LEG HIGH CARBON STEEL SIGN MOUNTING BRACKETS City of Tukwila STREET NAME SIGN DETAILS Not to *cele.' DATE: 01/14/94 R-10 ilit'oNsTakiaiNtOakizitizoc— Sidewalk Widths a i N Local CBD Access Arterial (See Note 1) P-0/CP/CM C -1/C-2 M -1/M-2 AU Others 5' 6' 6' 6' 8' 6' 5' 6' 5' 5' 5' 5' Curb Ramp (See Detail R-12) A Score Joints Every 5' A 3/8' Full Depth Expansion Joint Type 'A' Curb & Gutter 3' Wide Edger Finish 2% Max. 1% Min Section A -A \_5/8' Minus Crushed Rock Thickened Edge On Radius Expansion Joints Every 15' 1' Wide x 3/8' Deep Score Joints 3/8' x 3.5' Expansion Joint a NOTES: 1. Sidewalks shall be a minimum of 8 feet wide at bus stops and pullouts, or where the speed limit is over 35 MPH, or where a trail and sidewalk are combined. 2. Expansion Joints shall be placed every 15', score joints every 5'. 3. Cement concrete shall be placed on 2' of 5/8' minus crushed rock, and as otherwise specified in the current APWA/WSDOT Standard Specifications 4. Removal of existing concrete curb, gutter or sidewalk shall be to the nearest joint; score joints must be saw cut and replaced with new. City of Tukwila SIDEWALK DETAIL Not to scare. DATE: 07/30/96 R-11 i ,uPNWNWOVIOCAP-M0.6 5/6'1[1/2' DIAMOND PATTERN WITHOUT FRAME 5' 5' Landing Required 11' 1/2' MAX. TO 1/4' MIN. LIP 6' lig 2Y. NOTES: 4' THICK CEMENT CONCRETE SIDEWALK 16' THICKENED EDGE (IN CURB RETURNS) 6' THICK GUTTER 1. RAMP AND APPROACHES SHALL BE CLEAR OF OBSTACLES INCLUDING HYDRANTS, POLES AND INLETS. 2. RAMP CENTER—LINE SHALL BE PERPENDICULAR TO OR RADIAL TO CURB RETURNS UNLESS OTHERWISE SPECIFIED BY THE ENGINEER. MAXIMUM SLOPE SHALL BE 12:1. 3. FULL—DEPTH EXPANSION JOINTS ARE REQUIRED ON EACH SIDE OF RAMP AND SHALL BE PLACED AT 15' SPACING IN GENERAL SIDEWALK PORTION. 4. CURB RAMPS SHALL BE PLACED TWO PER RADIUS ON ARTERIAL STREETS OR AS DIRECTED BY THE ENGINEER. City of Tukwila CURB RAMP DETAIL Not to scale., DATE: 06/17/96 R-12 OIL.,S,.M.e,..,,a11C TYPE 1 DOUBLE YELLOW TYPE 2YY REFLECTOR i 000000000000000000000000CJ 000000000000000000 00000000000000000000000§000 00 0000000000000DOQO 0 DO0p p 000 DOJO 18" PLASTIC STOP LINE 18' Min. 30� 00 DDD OO 00000 PLASTIC ARROWS DOUBLE WHITE 0000 000 00000O�0p0 TYPE 1 TYPE 2W 8 888 8888888888 8888888 i---30 =moi —i --- TYPE 2W REFLECTOR WHITE 000009 Q ----15' I 25 �1 �0 00 TYPE 1 WHITE LEFT TURN LANE 3' 000000 CURB & GUTTER 00000 TYPE 2YY TYPE 2YY YEU.OW 6000b 3 O 00010 1---15 00000 0I NOTE: TWO WAY TWO—LANE 000000000000088800000 00888888o 0Ia .��"" m 00o 15'---t--30' 3' c4 PLASTIC ARROWS 000000 000 00000000880800000 00008800000 TWO WAY LEFT TURN LANE ALL PAVEMENT MARKINGS TYPE 1 & TYPE 2 SHALL MEET THE REQUIREMENTS OF THE APWA/WSDOT STANDARD SPECIFICATIONS AND DETAILS. • City of Tukwila RAISED PAVEMENT MARKER DETAIL Not to scale. DATE: 07/30/96 R-13 'NA ASIAI ADVOCVI MOM i FACE OF CURB —2' MIN -1 RED & WHITE STRIPED POST WHERE REQUIRED BY THE CITY ENGINEER STOP & YIELD INSTALLATION 0,— Edge of S/W 7' e --r11 //// 36,//// /// NOTE: CURB WITH PARKWAY 10' Cedar, treated Fir, or U Channel of Galvanized Post. As Directed By City Engineer FACE OF CURB Edge of S/W 36" I/// 7/7/1/ CURB TH AND SIDEWALK WITHOUT I PARKWAY Refer to MUTCD for odditionol infomotion. Diamond Grade Sign Sheeting. • City of Tukwila TYPICAL SIGN INSTALLATION Not to scale. DATE: 07/25/96 R-14 1111: PASTMCNOWVOKAlt14.0.0 - i • • (J• ck:34 0 --1 • •alias 01 1°N I 0 u 00 0 o )0 00 0 I •o•10 00 O 00 PUBLIIC STREET 0 R=50' ,o 0 /' S)IIVMSS0210 '1 0 A m P MIN. 0 rSTOP SIGN & OTHER AS APPROPRIATE. LOCATE PER MUTCO. 100' MIN. DISTANCE TO FIRST ACCESS TO PARKING 0 o• 0•0000000000c 0•'0000000000 o••000000000c 0.000000000 0.00000000c 0.• • 0000000 0;000000 0•-00000 •0• .00. 00• - - 1 LANDSCAPING WHERE REQUIRED 0000000000000000000000000000000000 000000000 0000000000000000000000000000000000000000000c S/W WHITE SKIP LINE PRIVATE STREET n n • c o m m v N O 000000 O 0 0 0 0 0 0 YELLOW SKIP LINE EXTRUDED CURB OK 5'-8' OPTIONAL PLANTER 0000 000000000000 0000000000000 00000000000000 00 TYPE A CURB REQUIRED UP TO P.C. OF' CURB R=50' TYPICAL LANDSCAPING PER LAND USE CODE 100' MIN. LEFT TURN STORAGE PLANTER STRIP OR TREEWELLS SIDEWALK MAY BE ON EASEMENT • • /50' MIN • SINGLE WHITE SOLID LINE (8" WIDE MUN') 50' L = (WT/2) • SL • DOUBLE YELLOW SOLID LINE BUTTONS/REFLECTORS STOP BAR AND CROSSWALK L = LENGTH OF TRANSITION WT = WIDTH OF TURN LANE SL = POSTED SPEED LIMIT • RAISED PAVEMENT MARKER LINE DETAILS SEE DRAWING R-18 100MIN DESIRABLE 75' MIN 10' - o o o o o o 0 DD 0 0 0 O 0 o O 0 0 0 o STOP BAR & CROSSWALK SEE DRAWING R-20 SEE DRAWING R-19 i PLAN SECTION A—A TYPE 1 8 PLAN DIRECTION OF TRAFFIC 0.65' TO 0.78' Lt .08 - SECTION 8-8 TYPE 2 PRISMATIC REFLECTIVE FACE 20• — 30* City of Tukwila RAISED PAVEMENT MARKERS (DIMENSIONS) DATE: 07/25/96 • Not to scale. R-18 4, • DETAIL "A" 1 — 4" 8' 0" DETAIL "C" _J L 1 — DETAIL "8" City of Tukwila PAVEMENT ARROWS Not to scab). DATE: 01/18/94 R-19 PIL •NSIMONDVOkfM.s.one NOTE: CURB RAMPS SHOULD ALIGN WITH CROSSWALK(S) 4' SIGNALIZED OR STOP SIGN CONTROLLED CURB OR EDGE OF PAVEMENT 12"-24" TYP. CURB OR EDGE OF ROADWAY 10'—• - SCHOOL OR UNPROTECTED CROSSWALKS NOTE: CROSSWALK BARS NOT TO BE PLACED ON THE WHEEL PATHS AND EVENLY DISTRIBUTED. USE 12" BAR IF SPEED LESS THAN 35 MPH USE 24" BAR IF SPEED IS GREATER OR EQUAL 35 MPH. City of Tukwila CROSSWALK DESIGN AND PLACEMENT _Not to scale. DATE: 06/17/96 I R-20 L .,S.,.OIe,.. i 7 01A MSC BELT CIRCLE 00 1 1/4' 01A BOLT 10.ES r6' sewn BASE ANCHOR BOLT LAYOUT POLE CAP ALLOT 43 MRH/STLNUSS STEEL WOWS 5' B D o.o. L.wNUN ALLOY B STAINLESS STEEL HARONARE TRUSS *644 CURB WE • A BCDE F G • H 30' 8' 8" 6" .188" 27'2" 11.25" 11- TO 12' 10' 8' 6' .188" 271 11.25" 11" TO 12" 72' 8" 6' .788" 272" 11.25" 11' TO 12' 15' 8' 6' .188' 271' 11.25" 11' TO 12" 40' 8' 8' 6" .250' 37'2' 11.25' 11' TO 12' 10' 8" 6' .250' 372' 11.25' 11' TO 12" 12' 8' 6" .250' 02" 11.25" 11" TO 12' 15' 8" 6' .250" 372" 11.25' 11' TO 12' R 0.0. LUMINAIRE DETAIL 3/4' C ANFER (4) ,'-BMC STEEL MOOR BOLTS ASTM A576. A151 MCC 1021-1046 50.000 P9. 1aN MLO IAN INA OF R00 STOCK 0.9002011'. OUT OF ROUND TOLERANCE •0.012'. ROLLED 0R CO THREADS PER 6.307. CLASS 2A. TOP 10' QALY. Slt. LOCK MASHERS a (4) 1" GCB. SIL. FIATWA0ERS. CAW. 51L. =war (PCR PLAN) 2 3/4'(1Hab0ED) 4- 4-94 HOOPS 0 1•-0. 0670 HANG Nat (4-"6' NOMINAL) INN -4L1.151 119E. CONPUTC 61TN REINFORCING FRAME AU07 356-76". C012R ANE 5.5 NEL N0. ST/MUSS STEEL %REM'5. BASE FIANCE ALLOY 356-T6 w/BELT 029CRS ANO STAMM STEEL SCREWS G 5.0. SW �1 TYPICAL LUMINAIRE POLE DETAIL POKE MU REINFORCING. FRANC 1/2'-131C TAPPED GROUNDING HOLE SECTION THRU HANDHOLE NOTE: NOTES: ANCNCR BOLTS SHALL BE ACCURATELY LOCATED AHO SECURED IN PLACED PRKBR TO POURING CONCRETE. CROIRR0 R00 SRN/ BE INSULTED PER STD. SPECBIGLn0NS. 6-97 MRS CYCNLY SRAM (r-67B(r-67 S0. OR r ELN. CASs 3000 CONCRETE. FOUNDATION DETAIL 1. BRACKETS SUPPLIED WITH 2" N.P.S. SLIPFITTER. SPECIFY MOD. 140 FOR 1.25" N.P.S. SLIPFITTER. 2. TWIN BRACKETS ARE LOCATED 180 O.C. 3. 10" BASE DIA. POLES REOUIRE 1"-8NC • 48" LONG ANCHOR BOLTS WITH A 3 1/4" PROJECTION. 4. STREET LIGHTS BEHIND SW. 5. JUNCTION BOX 6" INTO SW. 6. LUMINAIRE MUST BE CITY LIGHT OR PUGET POWER APPROVED. 7. SEE R-22 FOR SERVICE CABINET. City of Tukwila STREET LIGHT POLE 30' & 40' MOUNTING HEIGHT Not to scale. DATE: 06/17/96 R-21 Ru: >ASboAADVKa6VK-3/DNC i i 35 1/2 PHOTOELECTRIC 14'� CONTROL RECPT. LEVELING PAD — 12"-- MIN. 2—MIN. DISTANCE RUM. TO ROADIE POWER DOOR 5-3/8" ADJUSTABLE FOR THRU 2 PIPE LUMINAIRE DETAIL PRESTRESSED CONCRETE LUMINAIRE POLES M80 Anchor Base Pole Number Length / Weight 1480-6 19.7• / 600 01BO-7 270' / 740 M80-7.5 24'7' / 790 1480-8 26'3' / 900 1480-8.5 27.11' / 960 M80-9 276' / 1000 MBO -10 32'l0' / 1300 M80-10.6 34'9' / 1380 MB0-11.7 38.5' / 1600 NOTE: Appearance Code #213 3/4' CHAMFER Hand Hole (4) 1"-8NC STEEL ANCHOR BOLTS ASTM A57 A151 GRADE 1021-1046 50.000 PSI - M YEILO EAN Ow OF R00 STOCK 0.9 . OUT OF ROUND TOLERANCE ± 0.012'. ROLLED OR CUT THREADS PER A307. CLASS 2A. TOP 10" GALV. STL. LOCK WASHERS & (4) 1- GALV. STL. FLATWASHERS. 3 Min. s Truss Arm 1.-6' Sideeal Curb Line 5' top diameter G1 AbChor Bolts l'X36'X4' FO Bolt Circle J 11 1/2' (1400-6-10) �" ..C% 14' (1100-10.6-147) Length • Handle Cover 3' grade T TYPICAL LUMINAIRE POLE DETAIL ANCHOR BOLT LAYOUT GALV. STL. CONDUIT (PER PLAN) 2 3/4"(THREADEO) 4" 4-/4 HOOPS O 1•-0' CTR•S 4-6" POLE w REINFORCING FRAME 1/2"-13NC TAPPEO GROUNDING HOLE SECTION THRU HANDHOLE NOTE: ANCHOR BOLTS SHALL BE ACCURATELY LOCATED AND SECURED IN PLACED PRIOR TO POURING CONCRETE. GROUND ROD SHALL BE INSTALLED PER STD. SPECIFICATIONS. 8-17 BARS EVENLY SPACED SO. OR CLASS13000 C� CRETE. 3 D� FOUNDATION DETAIL NOTES; I. BRACKETS SUPPLIED WITH 2" N.P.S. SUPFITTER. SPECIFY 1100. 140 FOR 1.25" N.P.S. SLIPFITTER. 2. TWIN BRACKETS ARE LOCATED 180 0.C. 3. 10" BASE DIA. POLES REQUIRE 1"-8NC • 48" LONG ANCHOR BOLTS WITH A 3 1/4' PROJECTION. 4. STREET UGHTS BEHIND SIOEWAU(. 5. JUNCTION BOX 6" INTO SIDEWALK. 6. LUMINAIRE MUST BE CITY UGHT. OR PUGET POWER APPROVED. 7. SEE R-22 FOR SERVICE CABINET. • City of Tukwila ALTERNATE RESEDENTIAL STREET LIGHT POLE 30' & 40' MOUNTING HEIGHT Not to scale. DATE: 07/01/96 R -21A nom: PASTNOMaUMCM-2146.0•6 • WIRE GLASS WINDOW SEE DOOR DETAIL METAL HOLDER FOR WIRING DIAGRAM W/6 REMOVABLE PANEL USING 1/4 TURN FASTENERS METER BASE INTERNAL BARRIER -BREAKER PANEL -HINGED DEADFRONTS PER CODE THERMOSTAT TEST SWITCH s. -GFI DUPLEX RECEPTACLE NEUTRAL BUSS CONTACTORS (AS REQUIRED) STRIP HEATER 5? 4=? R OP O��O� �O yp O 6d I I I1 (FINISH GRADE VENT TYP. 2'-0-± TO SERVICE 1 GROUND CONTINUOUS BEAD OF SILICONE SEALANT TO POWER TO DISTRIBUTION AROUND BASE SOURCE CIRCUITS TO CONTROL CABINET 6" TYP FRONT VIEW SIDE VIEW obinet or Pone! Wall Piono Hinge onel Cover 1/4" x 5/8" Cellular Neoprone Gasket DOOR DETAIL NOTES: PLASTIC DRAIN TUBE 1. THE CABINET SHALL BE FABRICATED AND PAINTED IN ACCORDANCE WITH STANDARD SPECIFICATIONS AND BE RATED NEMA 3R. 2. DIMENSIONS SHOWN ARE NOMINAL AND SHALL BE ADJUSTED TO ACCOMMODATE THE VARIOUS SIZES OF EQUIPMENT INSTALLED BY THE CONTRACTOR. 3. THE CABINET SHALL INCLUDE TWO RAINTIGHT. SCREENED AND GASKETED VENTS. 4. ALL DOORS SHALL BE FULLY GASKETED. ATTACHED BY FULL LENGTH STAINLESS STEEL PIANO HINGES AND PROVIDED WITH PADLOCKABLE VAULT HANDLES. 5. HINGES SHALL HAVE BRASS PINS. 6. THE BREAKER PANEL COMPARTMENT DOOR SHALL BE FURNISHED WITH A THREE-POINT. SPRING-LOADED HITCH AND A BEST CX CONSTRUCTION CORE. 7. THE METER COMPARTMENT DOOR SHALL BE PROVIDED WITH TWO 4"x6" POLISHED WIRE GLASS WINDOWS. City of Tukwila SERVICE CABINET Not to *sale. DATE: 01/18/94 R-22 ..,�,•.= CHASE NIPPLE OPTIONAL 1/2" NIPPLE BUSHING LOCK NUTS STEEL POLE 1 1/2" x 1 1/2" CHANNEL 5/16" CLAMSHELL MOUNTING PUSHBUTTON ATTACHMENT INSTALL SIGN PAINT ARROW ON PUSHBUTTON (2 SIDES & TOP) PUSH BUTTON TO ACTIVATE WALK IN 1HIS DIRECTION 2 1/4" PLUNGER WITH CHROME FINISH INSTALL PUSHBUTTON 42" FROM GROUND TERMINAL BOX HEIGHT 8' MIN FROM BASE USE EGG—CRATE VIS PUSHBUTTON POSITION INSTALL 8' FROM GROUND City of Tukwila PEDESTRIAN SIGNALS Not to scale. DATE: 01/18/94 R-24 AL• .AP.IIVISIVaICIVI-2t010 -. A /U\ /O\ \ 0 0 NOTES: 1. Luminaires shall be high pressure sodium vapor G.E. or approved equal. 2. Subdivision and industrial or commercial development lighting is to be designed and provided by the developer meeting the above requirements. Layout pion shall be provided by the developer and approved by the City Engineer. 3. Installation of street lights shall conform to city standard details and specificotions. 4. The distance 'A' may be decreased to accomodate proper location of cul—de—sac lighting. TYPE OF ROADWAY STREET WIDTH LAMP WATTAGE AVERAGE MAINTAINED FOOTCANDLE REQUIRED UNIFORMITY RATIO LUMINAIRE MOUNTING HEIGHT LIGHT DISTRIBUTION PATTERN LUMINAIRE SPACING 'A' MAJOR ARTERIAL OVER 44' 400 1.5 3 TO 1 * M—C—III * MAJOR ARTERIAL 44' 400 1.5 3 TO 1 35' M—C—III 175' COMMERCIAL/INDUST. 44' 250 0.8 . 3 TO 1 35' M—C—III 175' RESIDENTIAL ART. 44' 150 0.6 4 TO 1 35' M—C—III 190' RESIDENTAIL LOCAL. 34' 100 0.4 6 TO 1 30' M—C—III 195' • City of Tukwila STREET LIGHT SPACING & DESIGN DETAIL Not to scala. DATE: 07/30/96 R-25 ♦ • 8'-6" 6'-6" 6'-0" 3.-0" 3 7/8" 3'-0" \ I! CLASS B CONCRETE POLE FOUNDATION PLAN 7 3/4" 1"0 A307 ANCHOR BOLT 1 1/2" CLR.h'- MIN. FACE OF CURB TOP #5 0 18"O.C. W/HOOK EACH END. LONG DIMENSION ONLY BOTTOM #5 0 6"O.C. EACH WAY W/ HOOK EACH END. • 6" RADIUS • 1' j3" 1'-0 tTAR �3" CLR. L--� — — J'— EXISTING CURB & GUTTER 1 3" CLR. GROUND ROD UNDISTURBED EARTH OR COMPACTED FILL 1 1/4"e PVC CONDUIT FOUNDATION SECTION NOTES: 1) THE FOUNDATION SHOWN IS SPECIFICALLY DESIGNED FOR A "HAPCO TYPE" ALUMINUM POLE SERIES #21-587 OR APPROVED EOUAL. 2 CONCRETE FOR FOUNDATION SHALL BE CLASS B. 3000 PSI COMPRESSIVE STRENGTH AT 28 DAYS. 3 REINFORCING STEEL SHALL CONFORM TO MINIMUM REOUIREMENTS OF ASTM A615 GRADE 60. 4 CONTACT PUGET SOUND POWER OR CITY LIGHT FOR SECONDARY VOLTAGE AND GROUND WIRE CONNECTION. 5) TWO WORKING DAYS ADVANCE NOTICE WILL BE REOUIRED FOR MAKING SERVICE CONNECTION. 6) ALL PERMANENT CONDUCTORS SHALL BE THIN COPPER. ALL ELECTRICAL WORKMANSHIP & MATERIALS SHALL CONFORM TO NATIONAL ELECTRICAL CODE REOUIREMENTS. City of Tukwila COMPOSITE SIDEWALK/ LUMINAIRE FOUNDATION Not to scala. DATE: 01/19/94 R-27 �.,. -27mo • • 1-3/16' FOGTITE NO. 1 -SP BODY WT. -37# OR EQUAL City of Tukwila GROUND ROD BOX Not to scale. DATE: 07/29/94 R-28 rI. e•iieemoveleie-4--aiihs i • #4 REBAR PREMOLDE JT. FILLER METAL FRAME & GRATE PER WSDOT STD. PLAN B -2A 3' 7" 3' 0" CURB AND GUTTER AS PER— WSDOT STD. PLAN F-1 ("BARRIER" STYLE) A INLET DETAIL 3' 7" t0 Z `PREM0.DED JT. FILER m L_BASIN INLET U SECTION A -A N 2'-8" 2'-6" POURED IN PLACE CEMENT CONCRETE CURB AND GUTTER 6" City of Tukwila CURB AND GUTTER CATCH BASIN SURROUND Not to Reale. DATE: 06/19/96 R-29 C:\SW RO\RIO\R-7R.ORG r 1 J -BOX i • • ' 1 1 1 1 L J r J -BOX i • L J -BOX J -BOX r l_ • • J. • • STOP BAR LOOP SCHEMATIC NOTES: 1. LOOP SCHEMATIC IS FOR A SINGLE LANE. LOOP SPACING SHALL BE AS SHOWN, EXCEPT AS NOTED ON PLANS. 2. INSTALL PER CITY STANDARDS. • City of Tukwila INDUCTION LOOP VEHICLE DETECTORS Not to scale. DATE: 07/30/96 R-30 • CITY OF TUKWILA INFRASTRUCTURE DESIGN AND CONSTRUCTION STANDARDS FOR STORM AND SURFACE WATER page D.1.0 Standards and Specifications References D-1 D.2.0 Permits D-1 D.2.1 Storm Drain D-1 D.2.2 Hydraulics D-2 D.2.3 Other D-2 D.3.0 Design Requirements D-2 D.3.1 Plans D-2 D.3.2 General Requirements D-3 D.3.3 Special Requirements. D-4 D.4.0 Construction D-4 D.5.0 Inspections D-4 D.5.1 Field Inspections D-4 D.5.2 Sampling and Testing D-5 D.5.3 TV Inspection D-5 D.APX.A Appendix A, Downspout Infiltration Design D-5 D.6.0 Drawings D-7 • • CITY OF TUKWILA INFRASTRUCTURE DESIGN AND CONSTRUCTION STANDARDS FOR STORM AND SURFACE WATER All standards and specifications contained herein represent minimum requirements for storm and surface water drainage systems in the City of Tukwila. D.1.0 STANDARDS AND SPECIFICATIONS REFERENCES The City of Tukwila recognizes and uses the following standards and specifications in the order listed: 1. City of Tukwila Design and Construction Standards, current edition. 2. Tukwila Municipal Code. 3. King County, Washington, Surface Water Design Manual, King County Department of Public Works, current edition. 4. Washington State Department of Fisheries Requirements. 5. Standard Specifications for Road, Bridge and Municipal Construction, WSDOT, current edition. 6. All other Federal and State special requirements where applicable. 13.2.@ PERMITS A storm drain permit is required for most construction activity within the City of Tukwila. The following list of permits apply to storm drainage: D.2.1 STORM DRAIN A storm drain permit is required for any construction activity, with the following exceptions: 1) Tenant improvements, maintenance and repair, which do not involve changes exterior to the building; D-1 2) Additions and modifications which involve existing single family __-_residential structures; - - - / 3) Construction where storm system design changes and new connections to the drainage system are not required. D.2.2 HYDRAULICS PERMIT APPROVAL The addition or modification of outfalls to a water course requires a hydraulics permit approval from the Department of Fisheries. This permit must be obtained before receiving a storm drain permit from the City. D.2.3 OTHER, Permits from outside agencies; such as the Department of Fisheries, Corps of Engineers, Department of Ecology, are the responsibility of the Developer. The City may require proof of other required permits prior to issuing approval. D.3.0 DESIGN REQUIREMENTS The design of storm drainage systems within the City of Tukwila shall meet all the requirements as listed in the STANDARDS AND SPECIFICATIONS REFERENCES section above. The design shall include the following: D.3.1 PLANS All plans shall be prepared in accordance with the standard details, plans and specifications contained herein. The plans should be limited to a maximum sheet size of 24" x 36" and be of sufficient scale to clearly show the following: a. Existing and proposed 2' contours. b. Location, slope (in percent), length, size and type of all pipe. c. Location, slope, and typical sections for surface channels. d. Location, elevations (invert and collar) and type of all structures (catch basins, manholes, etc.). D-2 • • • e. Square footage of area to be drained, including roof area. f. Bedding material for pipe. g. Invert or flow line elevations. h. Finished floor elevation. i. Number of acres of entire parcel (to nearest 0.1 acre) and percent of impervious surfaces. Preference is given to open channel flow, where practical. Water should not be allowed to flow over sidewalks, driveways, curbs or roadways. Storm drainage designs and plans for multifamily residential, or commercial, or industrial development within the City of Tukwila shall be prepared and stamped by a Professional Engineer, licensed by the State of Washington. D.3.2 GENERAL REQUIREMENTS D�.srdd��•,- All point discharges (roof downspouts, footing drains, concentrated sheet flow from driveways, etc.) must be directed to a public storm drainage system or approved infiltration system (for roof drains from a surface area of less than 5,000 square feet, see Appendix A). A storm drainage system design is required for all construction involving the creation of more than 5,000 square feet of new impervious surface; or substantial redevelopment of an existing multifamily residential, or commercial, or industrial development; or for construction of new public infrastructure. The design shall be in accordance with the King County, Washington -Surface Water Design Manual, current edition, and the standard details, plans and specifications contained herein. The design shall be prepared and stamped by a Professional Engineer, licensed by the State of Washington. Pipe materials for public systems shall be reinforced concrete pipe, .04or ADS N12/Hancor Hi -Q with sewer gasketed joints. D-3 • D.3.3 SPECIAL REQUIREMENTS Outfalls. All storm system outfalls to a designated water course require prior approval from the Department of Fisheries. Maintenance access must be provided for the City by means of road construction and easement. The Applicant may be required to provide an automatic sampling system, to arse% insure compliance with the NPDES. Streams. Streams shall be preserved in their existing channels. it' 11/ Off-site Improvements. Off-site improvements such as public storm drain n \ construction, can be substituted for on-site detention and water quality 1 ` requirements, when, in the opinion of the City Engineer, said improvements provide equal function and are consistent with water quality requirements. D.4.0 CONSTRUCTION All work performed in the construction of storm drainage systems shall be done only in accordance with City approved plans. The Contractor is required to maintain a set of approved plans and permits on the job site whenever work is being accomplished. As -built mylars, for public storm systems, will be required at the completion of the project and prior to final acceptance. All work is to be performed in accordance with all applicable Federal, State and local safety laws. D.5.0 INSPECTIONS All public infrastructure construction is to be done under the control and at the direction of a designated City Inspector. D.5.1 FIELD INSPECTIONS Field Inspections. It is the Contractor's responsibility to arrange for inspections 24 hours in advance. The Contractor shall request inspections by the City Inspector sufficient to confirm that all portions of the work are done in accordance with the approved plans and specifications including: Before backfilling: for compliance with all construction standards. After placement of rock: for compaction and material quantity and quality verification. D-4 • Prior to the placement of any materials which would preclude full and complete inspection of construction which will be buried or covered. Work covered prior to inspection will be uncovered at the expense of the Contractor. D.5.2 SAMPLING AND TESTING Compaction tests and material sampling and testing for purposes of determining compliance with the specifications, shall be required at the discretion of the City Inspector. All costs incurred for testing or sampling, done at the request of the City Inspector, shall be the responsibility of the Contractor. Determination of field density of compacted earth will be per ASTM D1557 "Standard". D.5.3 TV INSPECTION • All new. storm drainage mains shall be TV inspected. Requirements are detailed in Section S.5.4. • APPENDIX A - Infiltration Trenches Infiltration trenches must be in native soil on slopes less than 25%. The trench must be a minimum of ten feet (10') from any structure, and should be located as far as possible, but at least ten feet (10') from any property line. Parallel trenches must be separated by six feet (6') on center. Trenches are to be cut along contours (level grade). Trenches may be located under private pavement where overflow is provided at least one foot (1') below pavement surface. The trench length shall be determined as follows: D-5 • • Trench Length (ft) = [ (0.054 P A) / (10 I) ] / 4 where: P = Total precipitation in inches of a 10 -Year, 24-hour, storm (2.9" for Tukwila). A = Impervious area to be drained (ft.2) I = Infiltration rate (inches/minute). Infiltration Rate Determination: 1. Dig hole to proposed trench depth. 2. Drive a six inch (6") by four foot (4') pipe six inches (6") into the bottom of the hole. 3. Fill pipe with water, and maintain above ground level for at least four hours. 4. Fill pipe to the top, record the time in seconds for the water to fall six inches (6"). 5. Repeat test for three locations spaced along proposed trench. 6. Divide the total time for all three tests by 1080 (18 inches x 60 sec/min) to determine inches per minute. D-6 • • INDEX OF STORM DRAIN STANDARD PLANS FOR THE CITY OF TUKWILA D-1 Precast Curb Inlet D-2 Catch Basin Solid Cover D-3 Catch Basin Frame and Grate Details D-4 Vaned Grate for Catch Basin and Inlet D-5 Type V Manhole D-6 Access, Catch and Step Detail D-7 Type IV Manhole with Monolithic Base D-8 Yard Drain D-9 Commercial Sidewalk Drain D-10 Rock -Lined Curbed and Turnpike Shoulders D-11 Flexible Pipe Bedding in Trenches D-12 Pipe Compaction and Backfill D-13 Typical Flow Restrictor Installation D-14 24" Manhole Frame with Cover D-15 Swale Sediment Trap Inlet D-16 Grass -Lined Swale D-17 Concrete Pipe Anchor D-18 Typical Detention Pond D-19 Typical Closed Detention Pipe D-20 Individual Lot/Roof Infiltration System D-21 Storm Water Oil/Water Separator D-22 Catch Basin Type II 48" & 54" D-23 Ladder D-24 Filter Fabric Fence Detail D-30 Catch Basin Type I D-33 Levee Types I, II & III D-7 • • 2' 6" 1' 8" 5" 2'-10" 5" 2'-O" A A 5" PLAN CAST IRON FRAME & GRATE SEE DETAIL D-3. 1'-g" NOTE: 4" $ 2' 6" SECTION A -A ON APPROVAL FOR SPECIFIC LOCATION ONLY. r MAX. DIA. OUTLET PIPE City of Tukwila PRECAST CURB INLET Not to scale, DATE: 06/20/94 D-1 • • DIAMOND PLATE - PATTERN TYPICAL 1/2" DIA. CAST HANDLE LEVELING PAD (TYP.) 6 - 1/8" X 3/4" X 1 3/4" SEE DETAIL A NOTE: Lid to be designed for HS -20 loading when used in roadway. (1; $ 4 3/4" -r 5/8.-11 NC X 2" STAINLESS STEEL SOCKET(ALLEN) HEAD CAP SCREW 1 1/2" DETAIL A City of Tukwila CATCH BASIN SOLID COVER DATE: 06/20/94 Not to ocale.;, D-2 U: PAIMA10•4110,0030.3 • r 18" 31" 20 1/4" 22" L For Locking type only. 25" 1/8" 1 1/8" TYP. f i 1/2" t 22" 24 1/4' Leveling Pods 16 — -3/4" X 1 3/4" X 1/16" 31" For Locking type only. 20" i i 1 1/2" I— 1 3/4" ,'lls ?ZZ z 'ZZ 7 F44 18" 20 1/4" 25" Leveling Pods 8 — 3/4"X1 3/4"X 1/16" FRAME NOTES: 1. ALL TYPE I AND TYPE II CATCH BASINS REOUIRE LOCKING TYPE FRAME & GRATE. 2. FRAME & GRATE TO BE MALLABLE IRON. 3. WHERE A LOCKING GRATE IS REOUIRED. GRATE IS TO BE LOCKED DOWN WITH (2) 5/8" STAINLESS STEEL SOCKET HEAD CAP SCREWS. 4. VANED GRATES ARE REOUIRED ON SLOPES GREATER THAN 5%. '// t� 2 1/2" GRATE City of Tukwila CATCH BASIN FRAME & GRATE DETAILS Not to .cele. DATE: 06/20/94 1 D-3 • • ♦ • r Lettering to be recessed 1/16" A -- Leveling Pods 8 pods 1 1/2" x 3/4" x 1/8" B CJ fel LJ anr CC CC' 11111E0[11 - CE LE -.Jci Z j 24" A -- TOP VIEW 24' SECTION A—A SECTION B—B VANE DETAIL 1/2" Min. 3/4" Max. Section C—C 5/16" R NOTES: 1. The nome of the manufacturer and direction of flow shall be embossed on the top surfoce of eoch Grate. Lettering to be recessed 1/16". 2. The Material used for the grate sholl be designoted by embossing either DI(for Ductile Iron) or CS(for Cost Steel) near the nome of the monufocturer. 3. Dimensions shall hove a t 1/16" tolerance. 4. Edges shall hove 1/8" radius. 1/8" chamfer, or complete deburring. 5. Welding is not permitted. 6. Locking Lid. 7. Required on Slopes 107. and Greater. City of Tukwila VANED GRATE FOR CATCH BASIN AND INLET Not to scale. DATE: 07/25/96 D-4 Cone Section Mortar Fill Reinforced Concrete Pipe See Access Detail D-6. Step See D-6 for Detail Solid Round Locking Lid Concrete (5 1/2 sock mix. cI 3000) Reinforcing Steel Shall be Welded ot the Joint Section A—A A r 12 - Notes: 1. Additional Reinforcing and/or Special Bedding sholl be as Specified. Shop Fabricated Graft Min. Pipe Dia. -42- - A • • City of Tukwila TYPE V MANHOLE Not to scale. DATE: 07/25/96 D-5 PLC PASIMOVICNCAWS,0-&ONG STEP DETAIL ACCESS DETAIL / \ ‘ ‘‘ 7.. 9 1/2" for Precost M.H. / \ ‘ \ ‘ ‘ \ ‘ , N, Legs moy be parallel or opproximotely rodial ot option of monufocturer except thot oll steps in any monhole sholl be similor. MH Ring & Cover 24" Max. 18" to 24" Mox. 1 8" Min. 18" Mox. 1 24' Precost Concrete Rings Precost Cone Section CATCH DETAIL Mortor Inside & Outside 6" 12" Typ. 3 -- Match crowns unless otherwise specified in plons. MIN 24" Catch 6" Min. FLUSH WITH WALL Note: Rubber Gasket & Grout ot All Joints. Step See Detail 12" MIN 16" MAX 6" Min. Crushed Rock 12" Min. or Greoter os on Approved Pion. Precost Bose City of Tukwila ACCESS, CATCH & STEP DETAIL Not to nook,. DATE: 06/20/94 D-6 RC: PASINOW0 Yili060-‘0110 -•� I— 9 E•uol S•oces —{ 1 E—©Equal Spaces II✓�I/ \III f - Min. 1\1‘,1 I I l' 411 1 \\ — - ;1=1==='.)==1=14 -I- 1.4 J --I SEE STEP DETAIL S-5. 72- Min. SECTION B -B SEE ACCESS DETAIL D-6. r I0 e PRECAST MANHOLE SECTION. RAR LIST Pipe Dia. No.J Size Length Longitudinal ors 42- 6 5 4"-8- 48" 7 " 54" 8 - 60" 10 - - 66" 11 - 72" 12 - 78" 14 " " 84" 16 - Transverse Bars 42" 6 5 2'-B"+O.D. 48" 6 6 " 54" 6 6 " 60" 12 5 - 66" 12 5 " 72" 12 6 " 78" 12 6 " 84" 12 6 " . Diagonal Bars 42 '-841 4 I 5 I 3'-R" SEE ACCESS DETAIL D-6. A r L_ 1 J Bors for 60" to • 84" Dio. Pipe i° 0-x°0• -t.k ::.w'an.o /\/\/\/\N/\/\N \\/ Undisturbed Soil SECTION A -A frAtmAn .0.0%s 0 0 .0•�4 4- Min. Cover of 2". ./ ,x -,S/, A Undisturbed Soil 12" Thick rock bed or greater as on opproved pion. City of Tukwila TYPE IV MANHOLE WITH MONOLITHIC BASE Not to nate. DATE: 06/01/92 D-7 Iu ►\sL.o.o‘0..na7wc • Beginning of Droin DRAIN GRATE Area Droin Station 2—Ploin Concrete 1/8 Bend or Sweep PVC SDR 35 To Cotch Bosin 50' Mox. TYPE 1 Meet Existin Surface DRAIN GRATE ,r amoollimmoi I Ploin Con to Pi or PVC SDR 35 Outlet Pi e e 12" MIN. 4" Cement Concrete 5 1/2 Sock Mix. TYPE 11 4" Grote: To Be Atlas Foundry. Pattern Number 6958 Size 4" Pipe. Number 3326 Size 6" Pipe. Number 5582 Size 8" Pipe. Or Approved Equal. Joints: Pipe Joints to Ring Tite or rubber gasket. Bockfill: will Be Compocted with 5/8" crushed Rock unless otherwise opproved. Pipe Size: To Be Shown On The Plans. Top of Concrete Encosement Sholl Be To The Bottom Of The New Or Existing Pavement. Concrete Encosement Sholl Hove A Minimum Thickness Of 4 Inches. Concrete Sholl Be Class 5(1 1/2). For Yords or Londscope Areas Only. Grote: To Be Atlas Fo Pattern Number Number Number Or Approved Eq undry 235-14 Size 12" 8618 Size 15" Pipe 52194 Size 18" Pipe uol. Area Drain: Size And Shown On The By The Enginee Pipe Size To Be As Plans Or As Directed r. Bockfill: will Be Compocted with 5/8" crushed Rock unless otherwise opproved. Connection: To Drain To Be Mortared And Mode Flush With Inside Wall. Joints: To Be In Accordance With Stand Spec. For Yords or Londscope Areos Only. City of Tukwila YARD DRAIN Not to scale. DATE: 06/01/92 D-8 „L .,.,.o.aACMONP-LOW • • i Bock Of Walk Vorioble t 1- t l i- + + + + 10" + + + + + + 24" 1- t 1- 1- + + + + 4 + + + + + + 4 + + + + Frame And Cover To Be Atlas Pattern #1122 Or Equal. PLAN VIEW Variable Depending On Sidewalk And Parkin• Width c J C> 7" Min. f- 7" Min. 2 1/2 x 4 x 8 1 12" BLOCK PLACEMENT DETAIL Poyment Bosed On This Width 2" Min. Concrete Closs 5 1 1 2 Poyment Length NOTES: ELEVATION VIEW 1. IN UNPAVED AREAS PLACE 6"X6" CONCRETE AROUND CATCH BASIN FLUSH WITH CASTING. 2. IN PAVED AREAS ENCASE DRAIN FROM BACK OF WALK TO CATCH BASIN LEAVE ENCASEMENT 2" LOW OR AS DIRECTED BY THE ENGINEER. 1 1/2 3 Rol d P Floor Plote 1 1/2 3/16" Weld 1/2 x 3' Bolt Or #403"Long 01B"c/c END SECTION City of Tukwila COMMERCIAL SIDEWALK DRAIN Piot to scale. DATE: 06/01 /92 D-9 i • OVEREXCAVATE TO ACCOMMODATE ROCK moi//I h' 1� 3� W03**�'s•.•t`• � :141001. 9j� i1b1r apPillAW- _t ;�• a Node 5 ROCK -LINED SHOULDER DITCH IN CUT SECTION EXIST. GROUNDLINE OVEREXCAVATE TO ACCOMMODATE ROCK 6' !mgt.` _ �:���jalf 40.0011 eirra•Oke414,41- "DJ 41P i'ri,I Note see ROCK -LINED SHOULDER DITCH IN FILL SECTION 0.05 FT/FT CURBED SHOULDER VARIABLE DITCH IS LOCATED AT TOE OF FILL. Notes: 1. Rock Size per King County Surfoce Woter Design Manuol. 2. Ditch to be designed per King County Surfoce Woter Design Monuol. 0.05 FT/FT TURNPIKE SHOULDER L J City of Tukwila ROCK -LINED CURBED, & TURNPIKE SHOULDERS Not to scale. DATE: 06/20/94 D-10 r.c MS,roro\orrw-10.1•0 • •• w •• Limit of Pipe Zone / • � Alternote • Bedding Moteriol. Flexible Pipe 6" Tock Trench See Gradation Table. 0 D. A Foundotion Level Sieve Size % Possing 3/4" 100 3/8" 70-100 #4 55-100 #10 35-95 #20 20-80 #40 10-55 #100 0-10 #200 0-3 Sand Equivalent 35 MIN. BEDDING MATERIAL GRADATION TABLE A 4"Min. 10"I.D. and under 5"Min. 12"I.D. to 15"I.D. 6"Min, Over 18"I.D. Notes: 1. Provide uniform support under borrel. 2. Work bedding under hounches. 3. Trench width(W) —Pipe I.D. plus 24' Max. for pipe 24' I.D. or smaller. —Pipe I.D. plus 36" Mox. for pipe Iorger thon 24" I.D. 4. Bockfill Moteriol 5/8" Minus Crushed Rock unless otherwise Approved by the City. 5. For use with reinforced ADS. PVC on Private Systems where approved. City of Tukwila FLEXIBLE PIPE BEDDING IN TRENCHES Not to stele.= DATE: 06/01 /92 D-11 ae ..swd.Mor.wI u.a i 3' Max. 3' Maxi iiiii�iiiiiiiiiiiiii 0.D. of Pi•e Limits of Pipe Compaction n ..n Limits of Pipe Compaction 0.15 0.0. Min 1' 0.15 Rise Min. 0.65' Limits of Pipe Compaction Grovel Bockfill for Foundotion when Specified DESIGN A (For Metal And Concrete Pipe) 0.D. r r r r r r r r r+ r r r r r r • r r ••••' Limits of Pipe Compoction Grovel Bockfill for Foundotion when Specified TYPICAL PIPE -ARCH INSTALLATION Limits of Pipe Compaction x 0 i 0.D. of Pipe 0.15 0.D. Min. Limits of Pipe Compoction 0.65' Grovel Bockfill for Foundation when Specified DESIGN C (For Concrete Pipe With Circular Reinforcement Only) PIPE SIZE(INCHES) MIN. DIST. BETWEEN CIRCULAR PIPE 12" TO 24" 12" CONCRETE & METAL DESIGN A 30" TO 96" O1A./2 (DIAMETER) 102" TO 180" 48" CIRCULAR PIPE 12" TO 36" 20 CONCRETE ONLY 42" TO 96" 72" DESIGN C 102" TO 180" 72" (DIAMETER) PIPE—ARCH 18" TO 36" 12" 43" TO 142" SPAN/3 METAL ONLY (SPAN) 148" TO 199" 48" CLEARANCE BETWEEN PIPES MULTIPLE INSTALLATIONS LEGEND PIPE COMPACTION ZONES NOTES: Pipe compaction limits shown on this pion are for pipe construction in on embankment. For pipe construction in a trench, the horizontol limits of the pipe compaction zone shall be the walls of the trench. All steel and aluminum pipe and pipe orches shall be instolled in accordance with Design A. Concrete pipe with elipticol reinforcement sholl be instolled in . accordance with Design A. Concrete pipe, plain or with circular reinforcement. shall be installed with Design A or a combinotion of Design A and C. os determined by the Engineer. For Design C, it is essentiol thot the wolfs for Seismic Zone 3 be constructed os near verticol as possible. O.D. is equal to the outside diometer of a pipe or the outside spon of a pipe—arch. The dimensions shown os O.D. with 3' and 4' at which point 3' and 4' sholl be used. • 1' for diameters 12" through 42" and for spons through 50". 2' for diometers greater than 42" and for spans greater than 50". Backfitl material ploced in 0.5' loose layers and compocted to 95% moximum density. Earth Embonkment Compaction Boled strow or hoy with wires or strings cut (dry. commercial quality). Grovel backfill for pipe bedding. A95 • City of Tukwila PIPE COMPACTION & BACKFILL Not to scale. DATE: 06/01/92 D-12 rat PAsiwavvO\DvANO-13.0.0 See Access Detoil D-6. r L— See Step Detail D-6. See Detail D-6. 4././ //// //// L J --J 1 /2"MIN. 3/4"MAX. DIA. SOLID—GALV. STEEL GaIv. Steel Mortar Restrictor Plate (aluminum plate welded to unit with appropriately sized machine cut orifice) Materiels; Lift Gote-1/4" R -6061—T6 Alum., w/closed cell neoprene per ASTM 1056-67 chemicaL resistant (oil & grease). ozone resistont, —67 to +250' F service temp. Restrictor Unit--C.M.P.—H.3004 Alclod Alum. All Ports—to be_Aluminum unless stated otherwise. City of Tukwila TYPICAL FLOW RESTRICTOR INSTALLATION Not to scale. v DATE: 06/01/92 1 D-13 rat.: 11.ASIAIWANDIPBAD-113.016 • • Covers shall hove the word "SEWER" in 2" raised letters when used in connection with sanitary sewer installations. "STORM" when in connection with storm drain installation within right of way Sc drain on private property. "WATER" when in connection with potable water distribution. -- r I 'A6§°oho°0/V=0 Im0=0=1-4=0=0:=11� L rho a -=� �-- =11= ,A \0000c=i7J]o )=0=0 0 0=0= '1]=0-0210/01=110=D' \\o=a�\0�o�' 1 "Core -3 Holes Locking A8 webs 1/2"thick 1 Non—Skid Pottern to be cost integrol on top of cover. •`/ Machine Ground Seat. 2 1/2 25" Section A–A Cast Iron Locking Cover Minimum weight 150 lbs. Note: Frame to be grouted L3/81 1 1- 3/4 dzi- 4 -2 _ _I Frame Plan 26 3/8" 25 1/4' 24' Mochine Ground Soot. 34" Section B–B Cost Iron Frame Minimum weight 210 lbs City of Tukwila 24" Manhole Frame With Cover Not to scale.' DATE: 06/27/94 D-14 *61 1 .. ►\orrwer✓sMIMM • • FINISHED GRADE LOCKING FRAME AND GRATE UNIT "U" 4 MAX OR EOM/. —I 1 TRASH RACK FLOWLINE OF SWALE Open joint on upstream face only. FLOWLINE OF SWALE PRECAST TYPE 1—D C.B. BASE SECTION NOTES: 1. SEDIMENT TRAPS SHALL BE LOCATED AT UPSTREAM END OF SWALE ADJACENT TO UNDEVELOPED LAND OR IMMEDIATELY DOWNSTREAM OF ANY AREA PRONE TO EROSION. 2. LOCATE SEDIMENT TRAPS FOR CONVENIENT MAINTENANCE ACCESS NEAR ROADS OR ACCESS EASEMENTS. City of Tukwila SWALE SEDIMENT TRAP INLET Not to scale. DATE: 06/01/92 D-15 PLL PINSUM11010-1S.Ilin • MIN. VARIABLE MIN. TYPICAL SECTION NOTES: 1. SOD SHALL BE STAPLED IN PLACE AND SHALL BE INSTALLED PER THE STANDARDS. 2. ROUND ALL CORNERS FOR EASE OF MOWING. 3. MAXIMUM DESIGN VELOCITY SHALL BE 4 F.P.S.. VELOCITY MAY BE CONTROLLED BY CHECK DAMS OR OTHER DEVICES. 4. LOCATE ALL SEDIMENT TRAPS FOR EASE OF MAINTENANCE. 5. REMOVE SEDIMENT WHEN A MAXIMUM OF 6 INCHES IS DEPOSITED AT ANY POINT. 6. MATRIX—TYPE SOIL REINFORCEMENT MATTING MAY BE SUBSTITUTED ON PRIOR WRITTEN APPROVAL OF THE STORM AND SURFACE WATER UTILITY. City of Tukwila GRASS -LINED SWALE Not to scale., DATE: 06/01/92 D-16 nc eAsfa eovarao_aiee i x X/2 L"_ 1 X/2 X 2 #4 STEEL REINFORCING BARS 18" PIPE DIAMETER CONCRETE CLASS 8 DIMENSION X APPROX. C.Y. 12" 0.3 2'-4" 18" 0.4 2'-11" 24" 0.5 3'-6" 30" 0.6 4'-1" 36" 0.7 4'-8" 42" 0.8 5'-3" 48" 0.9 5'-10" 54" 1.1 6'-5" 60" 1.3 7'-0" 2-4" PVC & DRAINS WITH PERFORATED END CAP TO PREVENT PASSAGE OF TRENCH BEDDING MATERIAL 3" mu 3" -1 -; 9 - -n If - r_ r -1 F 1 r 2 1 2 1/2" CONCRETE CLASS B NOTE: ANCHOR SHALL BE PLACED IMMEDIATELY DOWNHILL FROM AND ADJACENT TO THE PIPE JOINT. • City of Tukwila CONCRETE PIPE ANCHOR Not to scale. DATE: 06/01 /92 D-17 ne vAti000chtom6A-$7 .o • DETENTION POND 3 MIN. t D=5' MAX CAST GRATE IN TOP SLAB MAX. WATER SURFACE • 6' MIN. WHEN D LESS THAN 3' •• 15' MIN. WHEN D GREATER THAN 3' 1' MIN. FREEBOARD COMPACT TO 95% SOD OR SEED DIKE 2 MIN. SOD POND INTERIOR BERM TRASH RACK Sliding shear gote SECTION VIEW OUTFALL PLAN VIEW RESTRICTOR: Capacity of outlet pipe must be equol to or greater than discharge during emergency overflow condition. I.E. OVERFLOW EL. RIP RAP SECONDARY OVERFLOW \\• CONTROL STRUCTURE City of Tukwila TYPICAL DETENTION POND; Not to .cote. DATE: 06/01 /92 D-18 • • 0 rri • • 0 C:r1 • 0 (O. OVERFLOW 1MIN. --. LOCKING LID SHEAR GATE W/ROD 2' ACCESS EVERY 50' (1 IS MIN.) JL 48" STORAGE PIPE [2' MIN. 2' MIN. 0.005 FT/FT \-- 36" MIN. DIAMETER CONNECTOR PIPE 42" MIN. DIAMETER CONNECTOR PIPE FOR PUBLIC SYSTEMS TYPE II CATCH BASIN 54" DIA. MIN. AIR VENT AT SOFFIT NATURAL GROUND •,/ Ns/ Ns/ NA. 2' MAX. TYPE II CATCH BASIN 54" DIA. MIN. • 1 OBSERVATION WELL 6" NON -PERFORATED PIPE COVER AT GRADE REMOVABLE 4" TEE 4" MIN. NON -PERF. PIPE • FILTER FABRIC OVER TRENCH •(USE SCREEN AT OVERFLOW) CATCH BASIN • 4" MIN. NON -PERF. PIPE FOR OVERFLOW (FILTER SCREEN AT UPPER END) 6" MIN. COMPACT BACKFILL CAP PRIVATE YARD DRAIN W/MIN. 18" SUMP 0 •• 0 1 N O FROM ROOF, DRIVEWAY AND FOOTING DRAINS 0 LENGTH OF TRENCH 1" MIN 6" PERFORATED PIPE W/END CAP. TRENCH L = ( (0.054•P•A)/(10•I) J / 4 Where: P = Totol Precipitation in inches of o 1 O -year„ 24-hour, storm. ( 2.9" for Tukwila) A = Areo to be drained (ex. roof areo). I = Infiltration rote (inches/minute) See Appendix A. Tukwila Storm Standard to determine Infiltration rote. Overflow to conveyonce system or to dispersol trench (4" min. tee w/5' perf. pipe projectingon both sides in specified washed grovel). Dispersal trench shall be used only with written permission from the director`of the storm and surface water utility -if ground slope exceeds 159:. A geotecnical report shall be required to demonstrote no adverse impact on scope stability for all proposed drywells within 100 feet of slopes exceeding 40%. A B -�--i 6'0' 23'-- 4-- 21' --}-12'-.1--16' B -®--' PLAN -BASE NO. 222P DIAMOND PLATE ACCESS DOOR 4 0' 24' 24' 2 Na. 1012P DIAMOND PLATE INSPECTION COVERS 24 OIL/WATER -I 18' SEPARATION INLET' (••�) CHAMBER !— . 1 OIL RETAINER _1€111.2.L.11) — — BAFFLE FLOV DIFFUSER BAFFLE h— 23' GRIT/SLUDGE RETAINER WEIR T 9' I - - i 12• 21' 6'0' 9' ,. . 6' 12' 5'6' 48-1/2' 12' 16' -I 5-1/2' 124-- 24• --I-- 24• —+-12' cysrOW vVVVV VVV YYVV\ O .. VV VV VVV V YV V V VV V V VVV\ (/V�\ �� VVV IVY :XXX V]]][[[V VVVV VVVV V j,/V •VVVVVVVVV\ - VV V VVVVV mwt, xVVV, •VVVV V V V V, 410 • • A 2 NO. 10121P DIAMOND NO. 222P PLATE INSPECTION COVERS DIAMOND PLATE COVER PLAN -COVER GALVANIZED STEEL PLATE BAFFLES 1. vEIR SECTION A -A SECTION B -B NOTE: ALL BAFFLE/WEIR PLATE TO BE GALVANIZED. MAX. CAPACITY 450 GAL. FLOW @ 15 MIN. DETENTION: 30 G.P.M. TO BE DETERMINED BY DEVELOPERS ENGR. • City of Tukwila STORM WATER OIL/WATER SEPARATOR Not to scale. DATE: 06/21/96 D-21 i .L /.VtosO00\0001\0-21.0.4 ♦ • 28' Frame and Grate or Ring and Cover V .lV V/- Riser or Adjustment Section 16' MAX -i—' Handhold MAX. 4' M[N.+� a rFlat Slab Cover 'B' (12' MAX) Mortar Fillet 48' DIA -6' 54' DIA -8' 20' x 24' or 24' Diameter 48' or 54' MIN. x For separate cast in place only '0' RING -I: Precast Base Joint • • o• Steps and Ladder 1'-0' Separate cast in place or Reinforcing Steel (for precast base with integral riser) 0.15 SO IN/FT in each direction for 48' DIA. 0.19 SQ IN/FT in each direction For 54' DIA. Precast Base With Integral Riser Gravel Backfill for Pipe 6' MIN Compacted Depth Bases Only. separate precast base Reinforcing steel (for separate base only) 0.23 SO IN/FT in each direction For 48' DIA 0.19 SO IN/FT in each direction For 54' DIA Design Assumptions Soil bearing value equals 3300 #/FT' (MIN) Bending for Precast NOTES: Catch Basins`to be constructed in accordance with ASTM C 478 (AASHTO M 199) a ASTM C 890 unless otherwise shown on plans or noted in the Standard Specifications. Handholds in riser or adjustment section shall have 3' minimum clearance. Steps in catch basin shall have 6' minimum clearance. No steps are required when 'B' is 4' or less. All reinforced cast in place concrete shall be Class A. Non -reinforced concrete in channel and shelf shall be Class C. All precast concrete shall obtain 4000 PSI e 28 days. Precast bases shalt be furnished with cutouts or knockouts. Knockouts shall have a wall thickness oF 2' minimum. Knockout or cutout hole size is equal to pipe outer diameter plus catch basin wall thickness. Maximum hole size is 36' for 48' catch basin. 42' for 54' catch basin. Minimum distance between holes is 8'. Frame and grate or ring and cover shall be in accordance with Standard Specifications and meet the strength requirements oF Federal Specification RR -F-6210. Mating surfaces shall be finished to assure non -rocking Fit. All base reinforcing steel shalt have a minimum yield strength of' 60,000 PSI and be placed in the upper half of the base with 1' minimum clearance. The bottom For details For details of the precast Catch Basin may be rounded. showing frame and grate, ring and cover see Standard Plan D-3 and D-4. showing ladder, steps, handrail and top slab see Standard Plan D-6. Frame and grate may be installed with flange down or cast into riser. • City of Tukwila CATCH BASIN TYPE 2 48" & 54" Not- to scale. DATE: 06/28/96 D-22 ♦ rar, PAST•4MhuuoM-iiFiO ♦ • #8(1") GoIv. Rebor Manhole Step H N C N cr 4/ 0 O rn Prefabricated Ladder — Rungs and Irons to be deformed or non—skid. — Moteriols for Aluminum Ladder Irons and Prefobricoted Ladders. or Galvanized Deformed Bar Ladder Irons and Prefobricoted Ladders. shall conform to the specifications therefore in Section 63. — Ladder rungs shall be of like manufactured materiels Ladder To Hong From M.H.Step. See Above. 3/4" Rodius #7 CoIv. Smooth Steel • City of Tukwila LADDER DETAIL Not to scale. DATE: 06/28/96 D-23 ♦ rat .Asu'0340w4.34na-140.4 • • 5'-0' T 2'-0' .____4-1. 2'-6' 1 Filter Fabric Material Filter Fabric Material 60' wide rolls. Use staples or wire rings to attatch fabric to wire Bury bottom of Filter material in 8' by 12' trench 2' by 2' by 14 Ga. Wire Fabric or equiv. 6' Max. tom— 2 by 4' wood posts, standard or better or U equal alternate: Steel fence posts 2' by 2' by 14 Go. Wire Fabric or equiv. 4 ......... LJ 2'-0' Provide 3/4'-1.5' washed gravel backfill in trench and on both side of filter fence fabric on the surface 2' by 4' wood post Alt: Steel fence posts 5'-0' City of Tukwila FILTER FABRIC FENCE DETAIL Not to .cele.` DATE: 08/04/94 D-24 iat. w�ir�w etiiurw►tura' FRAME AND GRATE (See standard pion for details) 6" RISER SECTION 12" RISER SECTION 16 • 13 BAR EACH CORNER 13 BAR EACH SIDE 13 BAR EACH WAY 4" NOTES: Catch basins to be constructed in occordonce with ASTM C 478 (AASHTO M 1991) & ASTM C 890 unless otherwise shown on plans or noted in the Stondord Specificotions. As an acceptable alternate to rebor welded wire fabric hoving o minimum area of 0.12 square inches per foot may be used. Welded wire fabric shall comply to ASTM A 497 (AASHTO M 221). wire fabric shall not be placed in the knockouts. The bottom of the precost bose section may be rounded. Precast boses shall be furnished with cutouts or knockouts. Knockouts shall hove o wall thickness of 2" minimum. Knockouts may be on all 4 sides with moximum diometer of 20". Knockouts may be either round or '0' shope. Pipe to be installed in foctory supplied knockouts. Knockout of cutout hole size is equal to pipe outer diameter plus catch basin woll thickness. The maximum depth from the finished grade to the pipe , invert is The toper on the sides of the precost bose section and riser section shall not exceed 1/2"/ft. Cotch basin frome and grote shall be in accordance with Standard Specifications and meet the strength requirements of Federal Specificotion RR—F-6210. Mating surfoces shall be finished to assure non—rocking fit. Frame and grote may be installed with flange down or cost into riser. \ PRECAST BASE SECTION 44" Measurement at the to ) (Measurement the base. • City of Tukwila CATCH BASIN TYPE 1 Not to scale. DATE: 06/28/96 D-30 nc ►AsuwoACNOM ne-na.c LEVEE TYPE I 643. SLOPE VARIES 5. EMBANKMENT MATERIAL EXISTING ASPHALT PATH 6' 1 1io. 1 r ToPson. SEEDEO SEE SPECIFICATION: TURF WIDTH VARIES WIDTH VARIES EXISTING TREE(S) DRIP UNE .4113aRty 11" TOBESPPEN CONSTRUCTION WITHIN THE ORIP UNE WILL BE PERMITTED ON A CASE EIT CASE BASIS I I WIDTH VARIES LEVEE TYPE II scr 40 12' 15. GRAVEL EMBANKMENT mATERIAL__ 2 HEIGHT VARIES 6. TO BE STRIPPED • • City of Tukwila LEVEE TYPE (I, II, VII) Not to scale. DATE: 07/25/96 D-33 Pa.t e‘sreemosperap-m.sec • CITY OF TUKWILA INFRASTRUCTURE DESIGN AND CONSTRUCTION STANDARDS FOR FLOOD ZONE CONTROL page F.1.0 Standards and Specifications References F-1 F.2.0 Permits F-1 F.3.0 Design Requirements F-1 F.3.1 Plans F-2 F.4.0 Construction F-2 F.5.0 Inspections F-2 F.5.1 Field Inspections F-2 • • • CITY OF TUKWILA INFRASTRUCTURE DESIGN AND CONSTRUCTION STANDARDS FOR FLOOD ZONE CONTROL All specifications contained herein represent minimum requirements for construction within a special flood hazard area in the City of Tukwila. F.1.0 STANDARDS AND SPECIFICATIONS REFERENCES The City of Tukwila recognizes and uses the following standards and specifications in the order listed: 1. City of Tukwila Design and Construction Standards, current edition. 2. Flood Insurance Study, current revision, Federal Emergency Management Agency. 3. "Standard Specifications for Road, Bridge, and Municipal Construction", current edition, prepared by the Washington State Chapter of the American Public Works Association (APWA) and Washington State Department of Transportation (WSDOT). 4. All other Federal and State special requirements where applicable. F.2.0 PERMITS F.2.1 FLOOD ZONE CONTROL This permit is required for construction within a special flood hazard area. F.2.2 OTHER Permits from outside agencies, such as the Department of Health, Department of Fisheries, Corps of Engineers, Department of Ecology, WSDOT and FEMA, are the responsibility of the Developer. The City may require proof of other required permits prior to issuing approval. F.3.0 DESIGN REQUIREMENTS Applications for construction in a special flood hazard area shall meet the all requirements as listed in the STANDARD AND SPECIFICATIONS REFERENCES section above. The design shall include the following: F-1 • t • F.3.1 PLANS Plans for all construction in a special flood hazard area within the City of Tukwila shall be prepared and stamped by a Professional Engineer, licensed by the State of Washington. The plans shall be prepared in accordance with the standard details and specifications contained herein. The plans shall include the following: a. Elevation in relation to mean sea level, NGVD datum, of the floodplain/floodwater, and basis for determination. b. Elevation in relation to mean sea level, NGVD datum, of the lowest floor (including basements) of all structures. c. Elevation in relation to mean sea level, NGVD datum, to which any structure has been flood -proofed. d. Certification by a Professional Engineer or a licensed architect that the flood -proofed methods for any non-residential structure shall meet the flood -proofing criteria in TMC section 16.52.070(B)(2). e. Description of the extent to which a water course will be altered or relocated as a result of proposed development. F.4.0 CONSTRUCTION All work performed shall be per approved plans only. The contractor is required to maintain a set of approved plans and permits, on the job site, whenever work is being accomplished. All work is to be performed in accordance with all applicable Federal, State and local safety laws. Upon completion of construction, and prior to issuance of a certificate of occupancy, a post construction elevation certificate/flood-proofmg certificate must be completed. F.5.0 INSPECTIONS F.5.1 FIELD INSPECTIONS It is the Contractor's responsibility to arrange for inspections 24 hours in advance. The Contractor shall schedule inspection by the City Inspector sufficient to confirm that all portions of the work are done in accordance with approved plans and specifications. F-2 • CITY OF TUKWILA INFRASTRUCTURE DESIGN AND CONSTRUCTION STANDARDS FOR POTABLE WATER SYSTEMS page W.1.0 Standard Specifications References W-1 W.2.0 Permits W-1 W.2.1 Water Meter W-1 W.2.11 Permanent W-1 W.2.12 Water Only W-1 W.2.13 Deduct W-2 W.2.14 Temporary W-2 W.2.15 Abandonment W-2 W.2.2 Water Main Extension W-2 W.2.3 Fire Line/Hydrant W-3 W.2.4 Landscape Irrigation W-3 W.2.5 Other W-3 W.3.0 Design Requirements W-3 W.3.1 Plans W-3 W.3.2 General Water System Requirements W-4 • W.3.21 Comprehensive Water Plan. W-4 W.3.22 Wells W-4 W.3.23 System Pressure W-5 W.3.3 Mains W-5 W.3.31 Pipes W-5 W.3.32 Fittings W-6 W.3.33 Valves W-6 W.3.33.1z Gate W-7 W.3.33.2 Butterfly W-7 W.3.33.3 -A Pressure Reducing W-7 W.3.33.4 Check W-8 W.3.33.5 Air Release W-8 W.3.33.6 Blow -off W-8 W.3.34 Separation and Crossings W-8 W.3.35 Taps W-9 W.3.36 Blocking W-10 W.3.4 Domestic Water Service/Meters W-10 W.3.5 Hydrants and Fire Systems W-13 W.3.6 Cross Connections and Backflow Prevention W-14 • t • W.4.0 Construction. W-14 W.4.1 Trench Excavation W-14 W.4.2 Back-Filling/Pipe Bedding W-15 W.4.3 Ductile Iron Pipe Installation W-15 W.4.4 Flushing and Disinfection W-15 W.4.5 Taps W-16 W.5.0 Inspections W-16 W.5.1 Field W-16 W.5.2 Sampling and Testing W-17 W.5.3 Pressure and Leakage Testing W-17 • • CITY OF TUKWILA INFRASTRUCTURE DESIGN AND CONSTRUCTION STANDARDS FOR POTABLE WATER SYSTEMS These specifications are the minimum criteria and standards for water distribution systems to be accepted by the City of Tukwila. The requirements herein apply equally to water systems to be privately owned as well as to public systems. W.1.0 STANDARDS AND SPECIFICATIONS REFERENCES The City of Tukwila recognizes and uses the following standards and specifications in the order listed: 1. City of Tukwila Design and Construction Standards, current edition. 2. "Standard Specifications for Road, Bridge, and Municipal Construction", current edition, prepared by the Washington State Chapter of the American Public Works Association (APWA) and the Washington State Department of Transportation (WSDOT). 3. American Water Works Association Standards. /, r4 4. All other Federal, State and local special requirements where applicable. W.2.0 PERMITS The following list of permits apply to water systems: W.2.1 WATER METER A water meter permit is required for any use of public water supplies. The following classes of meter permits are available: W.2.11 Water Meter. Permanent. Required for domestic water supply of all new or reestablished services. A separate service. and permit is required for each individual building. W.2.12 Water Meter, Water Only. This permit is for a separate service where waste water is not discharged to the public sewer (typically landscape irrigation), and therefore not subject to sewer charges. W-1 1111 W.2.13 Water Meter. Deduct. This permit is for installation of a meter to track water not discharged to the public sewer (typically landscape irrigation), and therefore not subject to sewer charges. This meter is connected downstream of a domestic water meter to an existing metered service. • W.2.14 Water Meter. Temporary. Required for use of public water, on a short term basis, where a metered supply does not already exist (typically for water truck for dust suppression). Restrictions: 1. A. Meters are to be used only for the designated project. B. Meters are to be returned promptly upon completion of the project or by the expiration date of the permit, whichever comes first. C. Meters are to be returned in the same condition as when rented. The _ user is responsible for meter damage and shall pay all costs related to repair. Lost or stolen meters are the responsibility of the renter and renter shall pay for the replacement. 2. Meters may be moved from one hydrant (or tap) to another within the same project providing: A. The Water Department is notified in advance of proposed relocation and approves it; and B. Hydrant wrenches are used in making all connections and disconnections. W.2.15 Water Meter. Abandonment. Required for removal of services. W.2.2 WATER MAIN EXTENSION A water main extension permit is required for construction of water mains, private or public. W-2 • W.2.3 FIRE LINE/HYDRANT A fire line/hydrant is required for installation or modification of fire supply lines and hydrants. W.2.4 LANDSCAPE IRRIGATION A landscape irrigation permit is required in conjunction with new landscaping on commercial sites where irrigation is required. W.2.5 OTHER Permits from outside agencies (such as the Department of Health, Department of Fisheries, Corps of Engineers, Metro, Water District 125, Highline Water District , Water District 20, City of Renton, City of Seattle, Department of Ecology, WSDOT) are the responsibility of the Developer. The City may require proof of other permits prior to issuing approval. W.3.0 DESIGN REQUIREMENTS The design and construction of water systems within the City of Tukwila shall meet all of the requirements as listed in the STANDARD SPECIFICATIONS section above. W.3.1 PLANS Plans for multifamily residential, or commercial, or industrial development, or development requiring construction of public infrastructure, within the City of Tukwila, shall be prepared and stamped by a Professional Engineer, licensed by the State of Washington. All plans shall be prepared in accordance with the standard details, plans and specifications contained herein. The following information shall be shown on all water plan submittals to the City: 1. Size, type and class of all pipe. 2. Profile of all lines; each profile shall be shown on the same sheet as the plan for the corresponding line. 3. Permanent or proposed street grades. 4. All surface and subsurface utilities and improvement structures, and all pertinent topography. W-3 • • 5. Stations of all connection bends, tees, valves, water main thrust blocking, crosses, hydrants, air and vacuum relief valves, and other appurtenances. 6. Location of existing buildings and services. 7. Existing and proposed street rights-of-way and easement limits for all utilities, including reference to any necessary permission and release from damages for owners of property through the ultimate supply point or facility. 8. All thrust blocks, special structures, appurtenances or other construction, all of which shall be detailed. 9. Identify any possible utility conflicts. W.3.2 GENERAL WATER SYSTEM REQUIREMENTS W.3.21 Comprehensive Water Plan. The City of Tukwila has adopted a Comprehensive Water Plan to insure the development of an efficient and adequate water supply system for the City. All extensions, additions, changes, or alterations to the City water system shall be consistent with the Comprehensive Plan. Highline water district intertie Water district 75 intertie Water district #75 intertie The Comprehensive Plan indicates the general location and configuration of the proposed system supply mains, interties and loops. The exact location or configuration of the system may be modified or adjusted by the Developer, provided the proposed system remains consistent with the overall concept of the Plan. All modifications to the Comprehensive Plan require specific approval by the City Engineer. Development cannot be approved with deficient utilities. If it is anticipated or indicated on the City's Comprehensive Water Plan that the system may be expanded in the future to serve other areas, said expansion will be incorporated into the design. W.3.22 Wells. New private wells or sources of water will not be allowed. Existing facilities covered by a current water right permit from the State of Washington will be allowed if they conform with all local, state and federal laws and regulations. W-4 • W.3.23 Water System Pressure. All water mains shall be sized after a hydraulic analysis based on the required fire flow demands and pressure requirements. The system shall be designed to maintain a minimum ,q 'vv,, L pressure of 20,0 at g 1.1nd vel at all points in the distribution system under conditie f flow. . ► �Ascd v 72/e W.3.3 MAINS The design for all new water mains within the City of Tukwila shall comply with the following: 1. Water mains shall have a minimum cover of thirty inches (30"). All water mains and services are not to have more than six feet (6') of cover. 2. Horizontal and vertical curves will not be allowed unless approved in writing by the City Engineer. 3. Wherever possible, systems shall be closed or "looped" to avoid dead-end lines on water mains. Where dead end mains are unavoidable, a standard two inch (2") blow -off assembly is required. A fire hydrant may be used in lieu of a blow -off assembly. 4. Under maximum flow conditions, velocities as . determined by engineering analysis shall not exceed ten feet per second (10 FPS). 5. All water main extensions shall be extended fronting the entire property. W.3.31 Pipe. All water main pipe shall be ductile iron pipe, cement lined, standard thickness, Class 52 minimum, and shall conform to the standards of USA Standard A-21.51 (AWWA C-151). Pipe size: A. Minimum single family residential water main shall be eight inches (8") inner diameter. B. Minimum commercial, industrial or multiple family unit water mains shall be a minimum of ten inches (10") in diameter for looped and twelve inches (12") in diameter for non -looped systems or per the size required in the City's Comprehensive Water Plan, whichever is greater. W-5 11111 W.3.32 Fittings. All fittings shall be cast iron or ductile, with flanged or mechanical joint connections and be of the same thickness class as the pipe used. • All fittings shall be cement mortar lined in accordance with USA Standard A-21.4 (AWWA C-104). All pipes, fittings, valves, hydrants, joints, and related appurtenances shall conform to the latest standards issued by the AWWA, APWA, City Ordinance No. 1567, and be acceptable for use by the City of Tukwila. Flanged joint shall conform to USA Standard B-16.1. Cast iron fittings shall be long body for operating pressure rating of 150 psi, unless otherwise noted. Metal thickness and manufacturing process shall conform to applicable portions of USA Standard A- 21.10, A-21.11, B-16.2 and B-16.4. Rubber gaskets for push -on -joint (Tyton) or mechanical joint (MJ) in accordance with USA Standard A-21.11 (AWWA C-1110). Gasket material for flanges shall be neoprene, chlorinated butyl, or cloth - inserted rubber. Type of connections shall be specified as push -on - joint (Tyton), mechanical joint (MJ), plain end (P.E.), flanges (FL) not threaded. ion'' IOL7S The owner shall sh certification from the manufacturer of the pipe and gasket eing supplied that the inspection and all of the specified tests have been made and the results thereof comply with the requirements of this standard. W.3.33 Valves. All valves shall be flanged or mechanical joint, suitable for installation with the type and class of pipe being used. Location. Sufficient valves shall be provided on water mains so that inconvenience and sanitary hazards will be minimized during repairs. Valves shall be located at not more than 500 foot intervals in industrial and commercial districts and at not more than one block or 800 foot intervals in other districts. W-6 • • • All "TEE" intersections shall have two valves minimum located at the tee and all crosses shall have three valves minimum located at the connection. All hydrants and fire line extensions shall have a gate valve located per the City's Standard Plan. /Z Type - All valves for water mains twelve inches (1Q) in diameter and smaller shall be gate valves. All valves for water mains larger than twelve inches (12") in diameter shall be butterfly valves. W.3.33.1 GATE VALVES. All gate valves shall, in design, material and workmanship, conform to the Standards of AWWA C-500. All valves shall be resilient seat, opening counter -clockwise, and unless otherwise specified, shall be a non -rising stem type, with double 0 -ring seal equipped with standard two inch (2") square stem nuts. W.3.33.2 BUTTERFLY VALVES. Butterfly valves shall conform to AWWA Standard C-504, Class 150, with cast iron short body and 0 ring stem seal. Valves in chambers shall have a mutual crank operation. Buried valves shall have a stem extension with a standard two inch (2") operating nut and suitable valve box. W.3.33.3 WATER MAIN PRESSURE REDUCING VALVES. Detailed drawings will be submitted to the City Engineer for written approval prior to installation. All pressure reducing valves: 1. Shall be Clayton valve or approved equal. 2. Shall be installed in precast vaults. A. Minimum vertical dimension will be six feet two inches (6'2") clear. B. Minimum horizontal clearance from vault to valve or appurtenances shall be two feet (2'). C. Vault shall be gasket sealed against ground water seepage. W-7 • • • 3. Shall be equipped with domestic water, power (110 Volt, single phase), duplex waterproof outlet, lights, heater, dehumidifier and sump pump with a check valve. 4. Shall have offset hatches for access to vault with permanent full length ladder. W.3.33.4 CHECK VALVES. Check valves shall be for 150 psi working pressure, unless otherwise specified. Check valves shall be equal to Clayton 81 B. W.3.33.5 ,AIR RELEASE VALVES. Air release valves shall be designed, constructed, and installed per City Standard Plans. Air release valves shall be located at all high points along the main. W.3.33.6 BLOW -OFF VALVES. Blow -off valves shall be built per the City's Standard Plans. A standard two inch (2") blow -off assembly shall be located at the dead end of all water mains for flushing purposes. If flows and pressure are deemed sufficient, a fire hydrant may be required in lieu of the blow -off assembly. Chambers, pits or manholes containing valves, blow -offs, meters, or other such appurtenances to a distribution system, shall not be connected directly to any storm drain or sanitary sewer, nor shall blow -offs or air relief valves be connected directly to any sewer. Such chamber or pits shall be drained to the surface of the ground where they are not subject to flooding by surface water, or to absorption pits underground. W.3.34 SEPARATION AND CROSSINGS Water and sewer main separation. Water mains shall be laid at least ten feet (10') horizontally from any existing or proposed sewer. The distance shall be measured edge to edge. DOE requirements shall also be met. In cases where it is not practical to maintain a ten foot separation, the City Engineer may allow deviation on a case-by-case basis. Such deviation may allow installation of the water main closer to a sewer, provided that the water main is laid in a separate trench or on an undisturbed earth shelf located on one side of the sewer at such an elevation that the bottom of the water main is at least eighteen inches (18") above the top of the sewer. W-8 • • Water mains crossing sewer shall be laid to provide a minimum vertical distance of eighteen inches (18") between the outside of the water main and the outside of the sewer. The water main shall be located above the sewer. At crossings, one full length eighteen feet (18') of water pipe shall .be located so both joints will be as far from the sewer as possible. Special structural support for the water and sewer pipe may be required. Surface water crossings. A minimum, cover of four feet (4') shall be provided over the pipe. When crossing water courses which are greater than fifteen feet (15') in width, the following shall be provided: A. The pipe shall be of special construction having flexible watertight joints. B. Valves shall be provided at both ends of water crossing so that the section can be isolated for testing or repair; the valves shall be easily accessible, and not subject to flooding; and the valve closest to the source shall be in a manhole. C. Permanent taps shall be made on each side of the valve within the manhole to allow insertion of a small meter for testing to determine leakage and for sampling purposes. State Department of Fisheries approval is required for any stream crossing. The Developer shall apply for and receive approval prior to construction. W.3.35 Taps. Tapping sus for 'size -on -size" shall be of the full encirclement "mechanical joint" style, and shall be made of either cast or ductile iron. Mueller, amu, or oJr approved equal. Tapping sleeves for other than "size -on -size" shall be "mechanical joint" or "epoxy coated fabricated steel". Fabricated steel sleeves shall be constructed of ASTM 285 grade C or ASTM A.36 steel, with a fusion bonded epoxy coating to AWWA C213-79. Painted coatings are not acceptable. Sleeves shall have a machined groove for maintaining gasket position. All sleeve hardware shall be stainless steel, specification 18-8 Type 304. JCM brand or other approved equal. W-9 • W.3.36 Blocking. All Tees, plugs, bends and hydrants shall be provided with reaction blocking per the City's standard plans. Tie rods or joints designed to prevent movement may also be required. fixing of concrete is not allowed. All tie -rods shall be painted with a bituminous coating. �- AV , k A,;, V P lot f Se -r Concrete blocking shall be cast in place. Blocking shall bear against fittings only and shall be clear of joints so as to permit dismantling at the joint. Backfilling shall not occur until the blocking obtains 3000 psi strength. W.3.4 DOMESTIC WATER SERVICE/METERS All domestic and/or industrial consumption of water, except for fire -lines, shall be metered. Water service connections and plumbing shall conform to relevant Seattle/King County plumbing codes and City of Tukwila standards. All domestic water service connections require an approved water meter permit from the Public Works Department. 1. Single family residential water service connections shall be a minimum of three-fourths inch (3/4") and use copper tubing type K from main to meter w/o joint and materials between meter and house must be approved by the current Seattle/King County Plumbing Code. 2. Water service connections to other than single family residential shall be a minimum of one inch (1 ") type K copper from main to meter w/o joint. 3. All pipe and fittings shall be rated for pressure of twice the maximum working pressure. Water services to be connected to an existing, in-service, water main, shall be made by a wet tap. The costs (labor, supplies, and equipment) for the completed installation shall be reported on the bill of sale form as a condition of acceptance of the installation. 3/4" and 1" 1. Tapping Saddle: Single strap Rockwell, Mueller, or approved equal (iron pipe thread). 2. Corporation Stop: Mueller H-10013 or approved equal. W-10 • 3 - A$ .f.4, b l — /517..6rer 3. 34 Meter Setter: Muelle r approved equal, set four inches (4") to six inches (6") from finished grade. / y Io -2_ 4. Pipe: Type K copper tubing. • • 5. Meter Box: .9 y pis-Fei ndfy-#54.14- or approved equal for 3/4" meters. #2 Fogtite or approved equal for 1" meters. Plastic meter boxes may be used in landscape areas only. Solid steel 1/2" diamond plate lid is required in traffic areas. 1-1/2" and 2" 1. Tapping Saddle: Double strap Rockwell, Mueller, or approved equal (iron pipe thread). 2. Corporation Stop: Mueller H-10013 or approved equal. 3. Meter Valve: Jones, J -372F, or approved equal, one on each side of the meter. Highest point of valve to be 8" to 10" below finish grade. Meter setters may be used in place of meter valves. The meter setter must have a check valve on the downstream side and a built-in bypass assembly or Mueller setter. 4. Bypass Assembly: A 1" bypass assembly will be installed on all 2" services; optional on 1-1/2" services. 5. Pipe Material: Type K copper tubingor 1,4 Adevar- . Pipe to be bedded in pea gravel, sand, or crushed rock (3/4" minus or smaller). 6. Meter Box: Fogtite #2 with 1/4" diamond plate solid steel lid or approved equal for 1-1/2" meter; Fogtite #3 or a 2' x 4' meter +a» ANA - with 1/4" diamond plate solid steel lid for 2" meter with three 12" minimum risers. Lids must have a hinged inspection plate, c ntered over meter. fes. 'UM/. 4.2.. it e,i /1. . 3" and 4" 1. d=apping -Tee Mueller -H= F5-or-approved-equab Se S r�o-�6 2. Tapping Valve: Mueller .662---66r7-or approved equal. Valves to be complete with valve box. Rich or Olympic Foundry with 18" top section. • • A-3-370 3. Meter Valves: Mueller A6'0E-with hand wheel or equal. One on each side of the meter. The valve shall be set upright with the highest point being eight inches (8") to ten inches (10") below finish grade. 4. Pipe Material: Ductile Iron Class 52. Pipe to be bedded in pea gravel, sand, or crushed rock (3/4" minus or smaller). Swing joints must be installed at the tapping valve, at the meter valve, and at any change in direction of the service line when using galvanized pipe. Concrete thrust blocks and steel tie rods will be used at any change in direction of the service line when using ductile iron pipe. 5. Bypass Assembly: Service must be installed with a 1-1/2" meter bypass assembly. Flange spacing for bypass will be 13-1/4". 6. Meter Box: 3'x4' vault, depth shall be a minimum of 28". The bottom of the box shall be below the bottom of the meter. A 1/4" diamond plate traffic lid shall be installed. A hinged inspection plate is to be installed over the meter register for meter reading, with meter 7"-9" from top of inspection plate. 6" and larger •":ii .v=i i i T23 (D-/4 Tapping Valve: Mueller , or approved equal. f- z �o 3. Meter Valves: Mueller A-6-ir with hand wheel or equal. One on each side of the meter. 4. Pipe Material: Ductile Iron Class 52. Concrete thrust blocks and steel tie rods will be used at any change in direction of the service line. 5. Bypass Assembly: Service must be installed with a 2" bypass assembly. 1.1;04.7.4040. 6. Meter Box: 4'x6' depth shall be a minimum of 28". The bottom of the box shall be below the bottom of the meter. A 1/4" diamond plate traffic lid shall be installed. A hinged inspection plate is to be installed for meter reading. W-12 • • W.3.5 HYDRANTS AND FIRE SYSTEMS INSTALLATION. All fire hydrants installed within the corporate limits of the City of Tukwila shall be per City standard plans. Fire hydrant feed lines shall be installed at right angles to the supply main in conformance with the Hydrant Setting Detail (see City Standard Plans). Leads from the service main to the hydrant shall not be less than six inches (6") in diameter and not over fifty feet (50') in length. Hydrants, auxiliary gate valves and supply lines shall be installed to meet sound engineering standards per the NFPA. COVERAGE. Hydrants shall be placed so that a hydrant is within one hundred fifty feet (150') of a building, and that no point of a building (around its perimeter) is greater than three hundred feet (300') from a hydrant. Public fire hydrants shall be installed at a maximum spacing of three hundred feet (300') along City water mains. ACCESSIBILITY. Hydrants shall be in plain view for a distance of fifty feet (50') in the line of vehicular approach (free from shrubs, trees, fences, landscaping, etc.). SUPPLY. Hydrant supply lines shall be of such size and design as to provide the fire -flow as required by Appendix III -A of the Uniform Fire Code, Fire Flow Requirements for buildings and the City's comprehensive water design standards. FIRE SPRINKLER VAULT. The fire sprinlder vault will conform with these Standards and the drawing in the City's Standard Plans. EXCEPTIONS. Any exceptions to items covered by this chapter shall be made by the Chief of the Fire Department and the officer in charge of the fire prevention bureau of the Fire Department and the City Engineer. Such exceptions must be in writing. W-13 1 W.3.6 CROSS CONNECTIONS AND BACKFLOW PREVENTION The installation or maintenance of a cross -connection, which, in the opinion of the City Engineer, will endanger the water quality of the potable water supply of the City, is unlawful. Backflow prevention devices shall be installed and maintained by the service customer on any service connection to the City's water supply system, where said backflow prevention devices are recommended by the AWWA standards, the UPC, or the American Backflow Prevention Association. The City shall make the final determination as to the type of backflow protection required. All backflow devices are to be certified by a DOH certified backflow tester. Results of the certification shall be delivered to the City Water Department. All backflow devices are to be in accordance with the AWWA "Accepted Procedure and Practice in Cross Connection Control Manual". W.4.0 CONSTRUCTION W.4.1 TRENCH EXCAVATION Trenches shall be provided per Tukwila Standard Plans and OSHA/WISHA requirements. The trench shall be kept free from water. Surface water shall be diverted so as not to enter the trench. The Contractor shall maintain sufficient pumping equipment on the job to ensure that these provisions are carried out. Boulders, rocks, roots and other obstructions shall be entirely removed or cut out to the width of the trench and to a depth of six inches (6") below water main grade. The trench shall be back-filled to grade with material satisfactory to the City and thoroughly compacted. Trenching operations shall not proceed more than one hundred feet (100') in advance of pipe laying without written approval of the City. Back -filling and surface restoration shall closely follow installation and testing of pipe, so that not more than 300 feet is left exposed without express approval of the City. W-14 1111 W.4.2 BACK-FILLING/PIPE BEDDING • Selected back -fill material shall be placed and compacted around and under the water mains by hand tools, from six inches (6") below the main to a height of six inches (6") above the top of the water main. All backfill shall be per the City's standard plan. W.4.3 DUCTILE IRON PIPE INSTALLATION Class 52 ductile iron pipe shall be installed in accordance with AWWA Standard C-151 and the manufacturer's recommendation. The bottom of the trench shall be finished to grade with hand tools in such a manner that the pipe will have bearing along the entire length of the barrel. The bell holes shall be excavated with hand tools to sufficient size to make up the joint. Bolts on mechanical joint pipe and fittings shall be tightened in accordance with the manufacturer's instructions. Installation of push -on -joint (Tyton) pipe shall be in accordance with the manufacturer's instructions. Except pipe deflection is no/ allowed. W.4.4 FLUSHING AND DISINFECTION Sections of pipe to be disinfected shall first be flushed to remove any solids or contaminated material that may have become lodged in the pipe. The Contractor shall be responsible for disposal of treated water flushed from mains. Prior approval from the City is required for disposal to sanitary sewers or surface water systems. All new, cleaned or repaired water mains shallbe disinfected in accordance with AWWA Standard C-601. The specifications include detailed procedures for the adequate flushing, disinfection, and microbiological testing of all water mains. At least four (4) hours after the flushing procedure, the Contractor shall request that the City Inspector collect water samples from the new system. These samples shall be taken in sterilized bottles and tested by a DOH approved testing lab, as designated by the Water Department. All samples must meet the DOH quality standards prior to placing the lines into service. W-15 W.4.5 TAPS • At no time shall chlorinated water from a new main be flushed into a body of fresh water. This is to include lakes, rivers, streams, and any and all other waters where fish or other natural water life can be expected. All connections shall be made to existing pipes by wet tap. All size on size taps will require a full cast iron (Mueller type), or an epoxy coated type JCM fabricated steel tapping sleeve. See Section W.3.35. All new connections to the City of Tukwila water system shall be in strict accordance with the appropriate subsections of Section 742 of the APWA Specifications, except as herein amended. All fittings shall be swabbed with a very strong chlorine solution (5-6% CL), in accordance with AWWA Standard C-601. Cut -ins are permitted on an exception basis only, and must have specific prior approval by the City. Necessary pipe, fittings and gate valves shall be assembled at the site ready for installation prior to the shutting off of water in the existing main. Once the water has been shut off, the work shall be prosecuted vigorously and shall not be halted until the line is restored to service. The Contractor shall have the responsibility of coordinating at least 48 hours notice to the City and affected customers of the intention to disrupt service. Cut -ins require the addition of an in line valve. W.5.0 INSPECTIONS W.5.1 FIELD INSPECTIONS All external water systems and infrastructure construction is to be done under the control and at the direction of a designated City Inspector. It is the Contractor's responsibility to arrange for inspections 24 hours in advance. The Contractor shall schedule inspection by the City Inspector sufficient to confirm that all portions of the work are done in accordance with approved plans and specifications, including: 1. Before backfilling, for compliance with all construction standards. 2. All pressure testing. • W-16 • • 3. Prior to the placement of any materials which would preclude full and complete inspection of construction which will be buried or covered. Work covered prior to inspection will be uncovered at the expense of the Contractor. W.5.2 SAMPLING AND TESTING Tests and material sampling, for purposes of determining compliance with the specifications, shall be required at the discretion of the City Inspector. All costs incurred for testing or sampling, done at the request of the City Inspector, shall be the responsibility of the Contractor. W.5.3 PRESSURE AND LEAKAGE TESTING All water mains and appurtenances shall be pressure tested for leakage,Ain accordance with City of Tukwila requirements, for new and reestablished sy_stems._In_general, the water main and appurtenances shall be brought to a hydrostatic pressure f 200p; measured at the high point in the line. There cannot be any loss in pressure during a one hour test period. Any leaks or imperfections developing under said pressure shall be remedied by the Owner before final acceptance of the work. No air will be allowed in the line. The main shall be tested between valves. Insofar as possible, no hydrostatic pressure shall be placed against the opposite side of the valve being tested. Test pressure shall be maintained while the entire installation is inspected. The Owner shall provide all necessary equipment and shall perform all work connected with the tests. Tests shall be made after all connections have been made. This is to include any and all connections as shown on the plan. Insofar as is practical, tests shall be made with pipe joints, fittings and valves exposed for inspection. The owner shall perform the test to assure that the equipment to be used for the test is adequate and in good operating condition and the air in the line has been released before requesting the City to witness the test. In addition, all fire lines and appurtenances will be tested in accordance with NFPA 13 Standards. Contact Tukwila Fire Department for details. W-17 • • INDEX OF WATER SYSTEM STANDARD PLANS FOR THE CITY OF TUKWILA W-1 Concrete Blocking (page 1 of 2) W-2 Concrete Blocking (page 2 of 2) W-3 Deadman with 45 Degree Bends W-4 Fire Hydrant Assembly and Setting Detail W-5 Fire Hydrant Guard Post W-6 Full Bodied, Cast Iron Tapping Tee and Valve W-7 2" Blow -off Assembly W-8 Typical Sprinkler Pit W-9 Valve Box Detail W-10 Air and Vacuum Relief Valve Detail W-11 Trench Backfill Street R/W W-12 Double Detector Check Valve Assembly and Vault W-12 NOTE Material Listing and Double Detector Check and Vault Assembly Notes W-13 Water Meter Box in Driveway 1" and 1-1/2" W-14 % . ter._16Qeter'Box414"/ W-15 3/4 Water Meter Box in Sidewalk or Driveway W-17 71-1/2" & 2" Meter Setters (Alternate No. 2) W-18 1-1/2" & 2" Meter Setters (Alternate No. 1) W-19 i;," 2" Domestic Water Service W-20 Commercial Water Meter Box W-21 Residential Water Meter W-22 In -street Encased Air & Vacuum Release W-23 3" to Lfr Meter Installation // W-18 CAPPED CROSS 90° BEND THRUST BLOCK — TABLE Min. Bearing Areo Against Undisturbed Soil Pipe Size A (ft2) B. (ft2) C (ft2) D (ft2) E (ft2) 4" M N- N el co N a a n N n n N Nha N 40 OD 0v CA in - N • 1 1 1 1 6" 4 2 1 1 8" 6 4 2 1 10" 10 6 3 2 12" 14 9 5 3 14" 19 12 6 3 16" 25 16 8 4 18" 31 20 10 5 20" 39 24 13 6 22" 47 29 15 8 24" 56 35 18 9 28" 76 48 24 12 30" 87 55 28 14 36" 125 78 40 20 42" 171 107 55 27 48" 223 140 71 36 Notes: 1. Bearing area of concrete thrust—block bosed on 200 psi pressure and sole soil beoring load of 2.000 pounds per square foot. 2. Area must be odjusted for other pipe sizes. pressures and soil conditions. 3. Concrete blocking shall be cost in ploce and hove o minimum of 1/4 square foot beoring ogoinst the fitting. 4. Block sholl bear ogoinst fittings only and sholl be clear of joints to permit taking up or dismantling of joint. 5. Contractor sholl install blocking odequote to withstand full test pressure os well os to continuously withstand operation pressure under all conditions of service. 6. Thrust block is considered to oct os o spread footing; therefore height of block must be equol to or less thon 1/2 the depth from the ground surface to the block's bose. 7. The quantity of concrete depend upon the distonce between the pipe and the undisturbed soil. TEE W/ PLUG Plug TEE W/O PLUG BLIND FLANGE OR SMALLER SIZE PIPE 45 ° BEND 11 1/4° BEND �i✓I� 22 1/2° BEND T/Ii„� /rf �//vim City of Tukwila CONCRETE BLOCKING (PAGE 1 OF 2) Not to scale.t DATE: 06/01/92 w-1 iac Asu.+mn.-I.o.a • VERTICAL BLOCKING FOR 11 1/4° - 22 1/2° -30 ° BENDS PIPE SIZE (inches) V. B. (degrees) CU. FT. A (feet) D (inches) L (feet) 4 6 8 10-12 16 18-20 24 11 1/4 22 1/2 30 11 22 1/4 2 30 11 1/4 22 1/2 30 11 1/4 22 1/2 30 11 14 22 1/2 30 11 1/4 22 1/2 30 11 1/4 22 1/2 30 8 11 17 11 25 41 16 47 70 32 88 132 70 184 275 91 225 330 128 320 480 2.0 2.2 2.6 2.2 2.9 3.5 2.5 3.6 4.1 3.2 4.5 5.1 4.1 5.7 6.5 4.5 6.1 6.9 5.0 6.8 7.9 3/4 3/4 3/4 3/4 3/4 7/8 7/8 1 1/8 1 1/4 7/8 1 1/4 1 3/8 1 1 3/8 1 5/8 1.5 2.0 2.0 2.0 2.5 2.0 3.0 3.0 4.0 3.0 4.0 4.5 3.5 4.5 5.5 VERTICAL BLOCKING FOR 45° BENDS 4 6 8 12 16 20 24 45 30 68 123 232 478 560 820 3.1 4.1 5.0 6.1 7.8 8.2 9.4 3/4 3/4 1 1/8 1 1/4 1 3/8 2.0 2.5 4.0 4.5 NOTE: CONCRETE BLOCKING BASED ON 200 PSI PRESSURE AND 2500 PSI CONCRETE. AND 2000 PSF MIN. SOIL BEARING CAPACITY. GALVANIZED(OR ASPHALT COATED STEEL). THREADED RODS AND PIPE CLAMPS SEE NOTE #2 45' \UNDISTURBED < EARTH r-- A '1 VERTICAI,. BLOCKING FOR 11 1/4°, 22 1/2°. 30°. 45", AND 90° BENDS City of Tukwila CONCRETE BLOCKING (PAGE 2 OF 2) Not to stele.' DATE: 06/01/92 W-2 11/: PNSONOWLIMMILINIP-2.1M • • MEGALUG Joint Restraint CONCRETE TO TOP OF THE PIPE ELEVATION VIEW -18" MIN. KEY INTO SIDE OF TRENCH 4 30" MIN. a — 4 1 44 2" MIN 4 a 4 4 4 L 44— J a a 4 4 4" CHANNEL OR 4" I—BEAM STEEL (WELDED) END VIEW NUT W/WASHER 3/4" SHACKLE ROD THROUGHOUT 3/4" SHACKLE ROD COATED W/COAL TAR PLAN VIEW City of Tukwila DEADMAN WITH 450 BENDS. Not to Beale. DATE: 11/17/95 W-3 ♦ • 5" STORTZ 18" 2-c FIRE HYDRANT TO BE PAINTED WITH TWO COATS OF ' RI' k 3 �7� S 059 YELLOW GLOSS. HYDRANTS ARE TO EQUAL MUELLER �A-423, 191K1. OR CLOW MEDALLION flF-2545. HYDRANTS SHALL CONFORM TO A.W.WA. SPECIFICATIONS C 502-54; SHALL BE COMPRESSION TYPE AND SHALL HAVE A TWO PIECE BREAKING FLANGE WITH BREAKING THIMBLE AT THE GROUND LINE OR STEM; SHALL HAVE A SELF—OILING DRY BONNET WITH FACTORY FILLED RESERVOIR HOLDING APPROXIMATELY 8 OUNCES OF OIL OIL RESERVOIR SHALL 8E SO DESIGNED AS TO GIVE A COMPLETE LUBRICATION OF STEMS EACH TIME THE HYDRANT IS OPERATED. THE UPPER STEM SHALL HAVE A BRASS SLEEVE. SIDEWALK CURB & GUTTER FINISHED PAVEMENT. SEE VALVE BOX DETAIL. Match Moin Depth 6" RESILIANT WEDGE GATE VALVE PROVIDE THRUST BLOCK CAST IRON TEE (CEMENT LINED) —MJ X MJ X FL MECHANICAL JOINT X 1/2 YD. WASHED ROCK ( MIN. 7/8" TO 3') CONC. BLOCKING DIM. 1'X1'X3" UND STURBED SOIL NOTES: 6" DIA. DUCTILE IRON PIPE 2-3/4 ASPHALT COATED STEEL SHACKLE RODS. SEE BLOCKING DETAIL FLANGE JOINT UNDISTURBED SOIL A. HYDRANTS SHALL BE EOUIPPED WITH TWO 2 1/2" N.S.T. HOSE PORTS AND ONE 5" STORTZ PUMPER DISCHARGE PORT. AND SHALL HAVE A 1 1/4" PENTAGON OPEN—LIFT OPERATING NUT. HYDRANTS SHALL HAVE A 6" M.J. BOTTOM CONNECTION AND 5 1/4" MAIN VALVE OPENING. AND SHALL HAVE 18" ABOVE GRADE LEVEL TO THE CENTER OF THE PUMPER DISCHARGE PORT. B. WHERE NO CURB & GUTTER IS INSTALLED. FIRE HYDRANT SHALL BE LOCATED (IN RELATION TO STREET CENTER LINE) CLOSE TO PROPERTY LINE.. C. HYDRANT INSTALLATIONS TO BE PER THIS STANDARD PLAN AND REQUIREMENTS OF TUKWILA MUNICIPAL CODE 14.24 AND CITY ORDINANCE. D. HYDRANTS INSTALLED. RELOCATED OR OTHERWISE WORKED UPON AS A RESULT OF A PROJECT SHALL BE FRESHLY PAINTED. City of Tukwila FIRE HYDRANT ASSEMBLY & SETTING DETAIL Not to scale. DATE: 07/30/96 W-4 ♦ fe .A.....M._..0•G • • ROCK WALL, PLANTINGS. OR OTHER SURFACE OBSTRUCTIONS. GUARD POST, SEE NOTE. MIN. AREA OF LEVEL GROUND SURFACE -47 CLEAR DISTANCE FIRE HYDRANT PER CITY STANDARD PLAN 6 4' MIN. 1 FILL GUARD POST ELEVATION NOTES: GUARD POST SHALL BE EITHER STEEL PIPE (MIN. 4" DIA.) OR CONCRETE FILLED (MIN. 8" DIA.). POSTS SHALL BE 3 FEET FROM THE CENTER OF THE HYDRANT AND SHALL NOT 8E IN DIRECT LINE WITH ANY DISCHARGE PORTS. POSTS SHALL BE 6 FEET LONG; 3-3 1/2 FEET SHALL BE BURIED. PAINTED FINISH SHALL BE THE SAME AS FOR HYDRANTS. City of Tukwila FIRE HYDRANT GUARD POST Not to scele.! DATE: 06/01/92 W-5 rem .A.stmomowaine-SAMM --r 3' MIN OR 3 TIMES DIA. OF THE TAP WHICHEVER GREATER 1 O O Concrete Thrust block Provide 0 ring seol per T.M.C. e -e -c4,0„ L LJ NOTES: 1. THIS IS FOR TAPS ON CEMENT LINED DUCTILE PIPE. 2. ASSEMBLY TO BE PRE—TESTED BEFORE DRILLING. Resilient Seot Gote Valve City of Tukwila FULL BODIED, CAST IRON TAPPING TEE AND VALVE Not to scale. DATE: 06/01/92 1 W-6 rim rAONIMOVIUTIWW-114M TEE TAPPED 2" CAST METAL VALVE MARKER POST STANDARD DETAIL AND EXTENTION PIPE LOCATED ADJACENT TO METER BOX PAINTED TWO COATS OF NON—CORROSIVE PROTECTIVE PAINT, PER A.W.W.A. STANDARDS. BRASS NIPPLE 2" PIPES THREADED LENGTH TO SUIT CONCRETE THRUST BLOCK CAST IN PLACE UNDISTURBED GROUND TWO PIECE CAST IRON VALVE BOX WITH STANDARD 24" BASE AND 18" TOP WITH 2" OVERLAP EOUAL TO RICH VALVE BOX OR EOUAL LIDS TO HAVE TABS NOTE: WATER MAIN PLAN VIEW SEE VALVE BOX DETAIL 41 •-•• 44 *4•4•404 Zy��.�I CONCRETE METER BOX FOG—TITE. #2 AA/...FOL/9 .s'TZ'EL_ L/Z. 2' X 2 1/2" BRASS ADAPTOR. SCREWED X NATIONAL STANDARD HOSE THREADS 36" MIN. 1 — 2" STREET ELBOW ALL PIPE SHALL BE GALVANIZED BEYOND GATE VALVE ELEVATION VIEW 3"-6" CLEAR. 2' PIPE, THREADED LENGTH TO FIT 2 1/2' CAP W/ CASKET NOT VENTED 2" COUPLING Y-900 ELBOW NO DRAIN HOLE City of Tukwila 2" BLOW -OFF ASSEMBLY Not to ,calx,, DATE: 06/01/92 W-7 CITY WATER MAIN THRUST BLOCKING GATE VALVE (MJ X FL) 2 — 3/4" SHACKLE RODS (COATED) TO VALVE OR NEXT PIPE BELL ADAPTER (FL X MJ) GATE VALVE (FL X FL) OSdcY } 12" MIN. NOTES: 1) PIPE AND FITTING SIZES SHALL VARY WITH INDIVIDUAL FLOW REQUIREMENTS & SHALL. BE DETERMINED BY THE FIRE DEPT. 2) PIT LOCATION TO BE OUTSIDE OF UTILITY EASEMENT ON PRIVATE PROPERTY. 3) 12" CLEARANCE SHALL BE PROVIDED FOR WORKSPACE AROUND ALL FITTINGS TO INSIDE OF VAULT. 4) CONCRETE VAULT SHALL HAVE ONE 4' X 4' OR TWO 3' X 3' STEEL HINGED DOORS. FLANGED DOUBLE CHECK VALVE ASSEMBLY D.S.H.S. APPROVED. GATE VALVE (FL X FL) POST INDICATOR VALVE TEE (FL X FL) ADAPTER (FL X MJ) 3/4" SHACKLE RODS (COATED) 12" MIN. ONE SHALL BE A P.I.V. LADDER 4" FLANGED CHECK VALVE "(ft. 4" PIPE UP WITH LEAST TWO FD CONNECTION —4 FEET ABOVE GRADE PAINTED SAFETY RED. 12" MIN. 1 12" MIN. TO BUILDING FIRE SERVICE PLAN NTS #132 FD CONN. WATERTIGHT CEMENT GROUT City of Tukwila TYPICAL SPRINKLER PIT Not to scale. DATE: 06/01 /92 W-8 • VALVE BOX TO BE RICH STANDARD OR EOUAL /% %\ A /% 12% EARS TO BE ALIGNED WITH PIPE LINE %/1N. \fes\�� 2" SQUARE OPERATING NUT r 1/3 TOTAL LENGTH 4 11,4- DIA. 1 /8 MIN. THICKNESS 1" SOLID METAL STOCK 3/8" SET SCREW. 2 1/4" SOUARE INSIDE MEASUREMENT. 1/8" MIN. THICKNESS VALVE OPERATING NUT EXTENSION NOTES: 1. EXTENSIONS ARE REOUIRED WHEN THE VALVE NUT IS MORE THAN 5 FEET BELOW FINISHED GRADE. 2. ONLY ONE EXTENSION. MINIMUM OF 3 FEET LONG. TO BE USED PER VALVE. 3. MAXIMUM DISTANCE BETWEEN OPERATING NUT OF EXTENSION AND FINISH GRADE TO BE 2 FEET. 4. ALL EXTENSIONS ARE TO BE MADE OF STEEL AND PAINTED WITH TWO COATS OF METAL PAINT. City of Tukwila VALVE BOX DETAIL Not to scale.` DATE: 08/15/94 W-9 LOCATION PLAN 2" BEE HIVE STRAINER 2" OPEN PATTERN, RETURN BEND 2" GALV. IRON PIPE -ROAD CURB 2-2" 90' ELBOWS, GALV. W/ 1/4" HOLE IN ONE(DRILLED) & CLOSE NIPPLE BETWN. 2" X 1" MIN. REDUCER MIN. 3'6" 10' MIN. ROAD r 17".1 28" VAULT MAXIMUM WITHIN EASEMENT OR RIGHT OF WAY LIMIT 1" MIN. GALV. IRON PIPE o0 00 0 00 o� 0 0 ADO oc ° go 1" MIN. UNION r 1" MIN.90' ELBOW 1 - 1" MIN. NIPPLE 1" MIN. BR ZE GATE VALVE or ,44/ COUPLING. COPPER TO MALE IRON PIPE MUELLERORS /'rix r 1" MIN. TYPE "K" COPPER TUBING 12" MIN. 1" MIN UNION 1 " MIN GALV. IRON PIPE TO FIT 1" MIN. 90' ELBOW 1" MIN. CLOSE NIPPLE 1" MIN. IRON PIPE THREAD CORP. STOP W/ 90' BEND FOR COPPER 1" MIN. AIR & VACUUM VALVE, SCREWED G Ada Nu (h• ID 6 19!J -moo (V!) NOTES: Afoghg #64416 1" CORP. STOP TAP TOP OF THE PIPE 1. AIR VALVE TO BE INSTALLED IN 17" X 28" CONC. METER BOX W/ 3/8" STEEL DIAMOND PLATE COVER, FOG-TITE METER SEAL CO. NO.2 METER BOX OR EQUAL. 2. BED W/ WASHED GRAVEL. PASSING 1 1/2" AND RETAINED ON 1/4" MESH. 3. 10' MIN. DISTANCE FROM ANY VEHICULAR ACCESS. DUCTILE IRON SADDLE WITH 1" MIN. SERVICE TAP M City of Tukwila AIR & VACUUM RELIEF VALVE DETAIL Not to scale. DATE: 06/01 /92 w-10 • MATCH /Ta EXISTING STREET SECTION BACKFILL: 1.3 X 'Depth'(Mox. Width) 5/8" MINUS CRUSHED ROCK UNLESS OTHERWISE APPROVED BY THE CITY. INITIAL BACKFILL & BEDDING: 5/8" CRUSHED ROCK. NOTE: ALL BACKFILL SHALL BE COMPACTED TO 957. OPTIMUM DENSITY. 6" MIN. PIPE O.D. 4 MIN. MIN 3'&MAX 6' L } 0.0. + 24" (MAX. WIDTH) City of Tukwila TRENCH BACKFILL STREET R/W Not to scale.` DATE: 06/01/92 w-11 nu ►A,S11/9.oU.mh..i1.s:; 5* STORTZ WITHIN 50' OF HYDRANT 12- MIN. 12* MIN. 12 MIN. MIN. lit.tf.ALL PLAN VIEW 6- MIN. COMPACTED FOUNDATION GRAVEL UNDER VAULT TO BUILDING 12- MIN. ELBOW DOWN 30*-45BEND SIDE VIEW NOTES: 1. DESIGN FOR 4" THRU 10' DDCV. 2. SEE ATTACHED NOTES AND MATERIAL LISTING. • City of Tukwila DETECTOR DOUBLE CHECK VALVE ASSEMBLY AND VAULT Not to scale. DATE: 06/28/96 W-12 MATERIAL LISTING; 1. 3/4"IAK<t RODS WITH STAR BOLTS AND ASPHALT EMULSION COATING. 2. 4 MIN. D.I. CLASS 52 PIPE. 3. PRECAST CONCRETE VAULT WITH HINGED STEEL PLATE COVER, DIMENSION TO VARY WITH SIZE OF ASSEMBLY. 4. 0.S.H.A. APPROVED LADDER IF OVER 30" DEEP. 5. PIPE SUPPORT STAND UNDER EACH CHECK VALVE. 6. COPeER OR BRONZE BYPASS WITH AN APPROVED DCVA. 7, 3/4 WATER METER. 8. APPROVED DDCVA IN MAIN LINE WITH TWO RESILIENT SEATED SHUTOFF VALVES AN9 TEST COCKS. g. 10", 8", 6 OR 4" COUPLING ADAPTER, FL. 10. 10", 8", 6" OR 4"FL•PE D.I. CLASS 52 PIPE LENGTH TO FIT. 11. GROUT INTERIOR AND EXTERIOR ALL AROUND PIPE USING NON -SHRINK GROUT. 12. 10". 8", 6" OR 4" GATE VALVE FL•MJ WITH POST INDICATOR VALVE. 13. FLANGE TEE ASSEMBLY SIZED ACCORDINGLY. 14. FLANGED 90' BEND. 15. 4" OR 6" D.I. CLASS 52 PIPE FL•FL. 16. 4" OR 6" 90'' BEND. FL. 1.7. 4" OR 6" D.I. CLASS 52 PIPE. FL•FL. cfl 18 6" 90' BEND. FL. 19. UL USTED 5' STORTZ CONNECTION WITH 30 DEGREE ELBOW. . 20. 6" D.I. CLASS 52 PIPE LENGTH AS REQUIRED FL•FL. 21. 6" 90' BEND FL. 22. SWING TYPE GRAVITY OPERATED CHECK VALVE WITH BALL DRIP VALVE TO BE INSTALLED HORIZONTALLY. DETECTOR DOUBLE CHECK AND VAULT ASSEMBLY NOTES; 1. BACKFLOW PREVENTORS SHALL BE FEBCO #806 OR APPROVED EQUAL. 2. SIZE VAULT BASED ON SIZE OF APPARATUS AND MEETING MINIMUM CLEARANCES. 3. A SEPARATE DETAIL PLAN FOR VAULT INSTALATION AND SPRINKLER LINE MUST BE SUBMITTED AND APPROVED BY THE FIRE MARSHALL PROIR TO INSTALLATION. 4. MINIMUM APPARATUS SIZE SHALL BE 4". 5. VAULT SHALL BE SEALED TO PREVENT WATER LEAKAGE. 6. LADDERS SHALL BE REQUIRED WHEN DEPTH FROM TOP OF UD TO FLOOR OF VAULT EXCEEDS 30". INSTALLATION OF ALL LADDERS SHALL BE IN COMPLIANCE TO 0.S.H.A. 7. LOCATE VAULT IN PLANTING AREA AND NOT IN PAVING AREA. UNLESS APPROVED BY THE ENGINEER. 8. FITTINGS SHALL BE IN ACCORDANCE WITH ALL APPLICABLE REQUIREMENTS OF ANSI/AWWA C110/A21.10 AND CEMENT LINED (SEE APWA & AWWA). 9. PIPE SHALL BE DUCTILE IRON MEETING ANSI A21.51. CL52 & CEMENT UNED. 10. TEMPORARY SUPPORT SHALL BE PROVIDED UNDER VALVES AT THE TIME OF INSTALLATION. AFTER COMPLETE INSTALLATION INSTALL PERMANENT PIPE SUPPORT STAND. 11. PROVIDE BALL DRIP VALVES ON F.D.C. CHECK VALVE ASSEMBLY OR AT BOTTOM OF F.D.C. RISER. 9.CC r9 Q-1( y 12. FIRE DEPARTMENT CONNECTION TO BE PROVIDED WITH 1Wt 2) 5 STORTZ CONNECTIONS' AND , 30� DEGREE ELBOW. 13. ALL UNDERGROUND PIPING TO BE INSPECTED, FLUSHED, PRESSURE TESTED IN THE PRESENCE OF AN INSPECTOR PRIOR TO COVER AND CONNECTION TO THE OVERHEAD SYSTEM. 14. UPON INSTALLATION, BACKFLOW PREVENTION ASSEMBLIES ARE TO BE TESTED BY A CERTIFIED TESTER AND ALL TEST -COCKS ARE TO BE PLUGED AFTER THE TEST. THEREAFTER, ANNUAL TESTS SHALL BE PERFORMED AT OWNER'S EXPENSE. AND COPIES OF TESTS RESULTS SHALL BE PROVIDED. 15. CONCRETE VAULT SHALL HAVE ONE 4'•4' OR TWO 3'•3' STEEL HINGED DOORS. City of Tukwila MATERIAL LISTING & DETECTOR DOUBLE CHECK & VAULT ASSEMBLY NOTEKS seta. DATE: 06/20/96 W-12NOTE • HINGED READING LID 3/8' STEEL TRAFFIC COVER WITH HINGED READING LID (WELDED LEGEND - 'W.M,') NOTE: Use Fog Te #2 or Equal REINFORCED CONCRETE METER BOX City of Tukwila WATER METER BOX IN DRIVEWAY 1" AND 1-1/2" ' Not to scale,' DATE: 06/30/94 W-13 • NOTE: z Use - CARSON Model 1419 w/Meter Reading Cover or Equo.l Cover MustDisplay 'W.M' or Equal 3 X 4' Knock Outs (Opposite Sides) City of Tukwila WATER METER BOX 3/4"' Not to SC810. DATE: 07/01/94 V-14 5/16' STEEL TRAFFIC BEARING LID (WELDED LEGEND - „19,.- ° 7 41-7 NOTE: Use - Fog Tite #1Il or Equal -y,'1'- City of Tukwila 3/4" WATER METER BOX IN SIDEWALK OR DRIVEWAY Not to scale, - DATE: 07/01/94 W-15 ISL I4"YaYht. hV4pIY6 1-1/2" AND 2" COPPER METER YOKES Mueller Co. . Grinnetl'ca...„. H-1423 shown ,1-1/2" and 2" Copper meter yokes with horizontal inlet and outlet and F.I.P. thread ends 8.21 9-90 Catalog number H-1423 - B-2423 Description p With lock wing ground key angle meter stop With lock wing MUELLER 300TM Ball Angle Meter Valve Meter size 1-1/2" 2" Dimension A* 13.25" 17.25" Dimension B 9", 12", 15", 21", 24", 27" 18", 9", 12", 15", 21", 24", 27" I8", Dimension C - nominal pipe size of inlet and outlet 11/2„ 2„ Dimension D* 21.50" 26.63" *Adjustable dimension. Copper tubing in by-pass can be cut to accomodate shorter meters. Adjustment affects both A and D dimensions. See section six (6) for end connections that can be used with these yokes. TO ORDER SPECIFY , METER SIZE, RISER HEIGHT AND CATALOG NUMBER. • .2 " CDrn oRIP ieJ4woceiers'''' L, 4°1BA-VE — ANGLE CHECK VALVE HFA31-777-0 30' MIN TEE 774 T1S4- (TYP) SEE NOTE 1 0 -RING IN FLANGES OCKING WING NUT NOTE 1: 7-3/8' FLOW BALL VALVE B41 -444W BRASS NIPPLE BRASS 90' ELL 2' FEMALE IRON PIPE INLET & OUTLET 0 ELEVATION 1-1/2' SR METER = 13-1j4' 2' COMPOUND METER = ,I5-1/4' METER BOX LID 24' MIN CAP OR PLUG (2' BEYOND METER BOX) METER BOX,(TYP) - !✓ji rA 2" 171, 7 - 7 1/4' METER BOX,(TYP) END VIEW GENERAL NOTES: /ro =Jretq /S� FDRD- CUSTOM:'ETTE-R-4iB=95082-9I.B. SENSUS METERS TO BE O2AND SET BY THE CITY •Br•E R .REN' ' PART b :ERS - ER ITEM ••U •C UR ' :Y RD ETER :0 0 EQ ALE FITT G' TO BE SED. M TER SETTER TO BE APPROVED BY THE CITY INSPECTOR PRIOR TO BACKFILL. PER City of Tukwila 1-1/2" & 2" METER SETTERS (Alternate No. 2) Not to scale. DATE: 07/02/96 W-17 ILL. w•ilm0.•n *TflW.I7.VSG • ANGLE ANGLE BALL VALVE CHECK VALVE HFA13-777V-0 HFA31-777-0 SEE NOTE 2 TEE T1S4- 774 (TYP) SEE NOTE 3 HI— MOL PLASTIC 160 CL EE NOTE 0—RING IN FLANGES T 7-3/8' NOTE 1: FL W BALL V B41-444 BRASS NIPPLE LVE BRASS 90ELL 2' FEMALE IRON PIPE INLET OUTLET 1 METER BOX LID 24' MIN CAP OR PLUG (2' BEYOND METER BOX)/ METER BOX(TYP) 7 1/4' METER BOX.(TYP) ELEVATIO END. VIEW 1-1/2' DISK METER = 13-1/4' 2' COMPOUND METER = 15-1/4' NOTE 2: 1-1/2' DISK METER = 8' 2' COMPOUND METER = 16' NOTE 3: COMPRESSION PACK JOINT' FOR 1-1/2' DIA. USE FORD $C86-66 (PACK END IP:S.) OR EQUAL. // FOR 2' DIA. USE FORD *C86-77 (PACK END I.P.S.) OR EQUAL. /G ERAL NOTES: // METERS BE SUPPLIED AND SET BY THE CITY ABOVE RE RENCED PART NUMBERS REFER TO ITEMS MANUFACTU D BY FORD METER BOX CO. INC. THESE OR EQUIVAL T FITTINGS TO BE USED. METER SETTE TO BE APPROVED BY THE CITY PRIOR TO BAC ILL METER BOX TO IP SUPPLIED BY THE CITY UNLESS IN PAVIN OR SIDEWALK(— •so //) 1 City of Tukwila 1-1/2" & 2 METER SETTERS • i ‘:•.!;,301!' 4 Not to gook. DATE: 07/26/94 W-18 FIZ. PASTAICIPLIWA1M10-111.11V6 36' 1.."_ 41.! !•''- i iffier -i liilmg"= MIN FINISH GRADE 24' MIN 11111I�7 3/16' SPACING [11 1.1 - 2' METER l-. dais Imo■ PRIVATE PLUMBING SHALL CONNECT HERE SETTER SHALL BE POSITI NED TO: CENTER RIGID SPREADER W1 UNDER INSPECTION LID AND PROVIDE ADEQUATE CLEARANCE BETWEEN BYPASS AND BOX WALL FOR OPERATING AND LOCKING BYPASS VALVE. OA PAINTED HIGH TENSILE D.I. SERVICE SADDLE W/ DOUBLE SSS-STEEL—SsTRAP, 2' AWWATp�R TAP, ROMAC 202S, OR EQUAL, SIZE AS REQUIRED. �, s. p. ® CORPORATION STOP, 2' AWWA 4A- INLET BY 2' MALE IRON PIPE THREAD OUTLET WITH BALL VALVE (OR EQUAL LOW -FRICTION VALVE),. - 48 MUELLER ORISEAL NO. H-9968, OR -EQUAL. CO COUPLING, 2' FEMALE IRON PIPE THREAD BY 2' EIIGK=d84N3 (COMPRESSION FITTING) FOR COPPER, 81323Mtli MUELLER NO. H-15451, OR EQUAL. iia EO 2' STREET ELL, BRASS, MALE IRON PIPE THREAD BY FEMALE IRON PIPE THREAD. FO 2' NIPPLE, BRASS, M.I.P.T. x M.I.P.T., 6' LONG OR AS REQUIRED TO MEET PROPER GRADE. -ca.L41 LIP!'. BRASS OH 2' BRASS AND COPPER METER SETTER WITH HIGH BYPASS: - FLANGED BALL METER VALVE ON INLET - FLANGED KEY METER VALVE ON OUTLET - BALL VALVE ON BYPASS - PADLOCK WINGS ON ALL VALVES - VERTICAL INLET AND OUTLET, F.1.P.T. - BUSHING INCLUDED ON OUTLET SS, -OR -.EQUAL. 1 PLI ;RAC -TM : 1 • M • : : © CONCRETE METER BOX, FOG TITE OR EQUAL, FOG TITE NO. 2 IN NONTRAVELED AREAS AND SIDEWALK (CONC. COVER WITH ALUM. INSPECTION LID). FOG TITE NO. 2T IN AREAS WITH VEHICULAR TRAFFIC (TRAFFIC BEARING 3/8' FULL STEEL COVER WITH INSPECTION LID). NOTES: 1. SERVICE LINE SHALL BE PERPENDICULAR TO THE WATERMAIN UNLESS OTHERWISE APPROVED BY THE ENGINEER. 2. BYPASS VILL BE LOCKED OFF BY CONSTRUCTION INSPECTOR WHEN METER SPREADER IS INSTALLED. 3. METER WILL BE SUPPLIED AND INSTALLED BY THE CITY OF TUKWILA. 4. 2' COMPRESSION CONNECTION BY FEMALE IRON PIPE Ell COUPLING (MUELL R H15-533.20. OR EOUAL) MAY BE SUBSTITUDED FOR STREET ELL/COUPLING COMBINATION © AND J • City of Tukwila 2" DOMESTIC WATER SERVICE Not to scale. DATE: 07/27/94 W-19 i FDA. MiIMIMfIIWatenv-n.wG i • NOTE: LID WITH HINGED INSPECTION PLATE. SEE WATER METER DETAIL FOR ADDITIONAL RISER SECTIONS NEEDED. METER BOX FOR 2' METER, 3' METER, 4' METER, AND 6' METER. CONCRETE VAULT DATA STEEL COVER DATA -3/8" FLOOR -PLAIN OR W/ 7 1/2" ROUND OR 7"X14" READING LIE METER SIZEOVER CAT NO. DIMENSIONS-I.D. WEIGHT PERTIER WIDTH LENGTH 12' 16' ALL SIZE TOTAL WEIGHT NO. PCS. SIZE EA. PIECE WEIGHT EA. PIECE 2' 724 21 1/2' 45 1/2' 321 425 24' x 48' 130 1 3'&4' 734 33 1/2' 45 1/2' 373 493 36' x 48' 209 2 24' x 36' 105 6' 746 45 1/2' 69 1/2' 540 473 48' x 72' 407 2 36' x 48' 204 City of Tukwila_ COMMERCIAL WATER METER BOX Not to scale. DATE: 07/28/94 W-20 FOGTITE *1 OR 2 CONCRETE METER BOX TRAFFIC LID WHERE REQUIRED PLASTIC IN LAWN OR STEEL IN DRIVE FINISHED GROUND LINE NO /At z _ N • o1-yrnA P.47• METER TO BE INSTALLED BY CITY 3e" -' TO NEW MAIN --BURY�"IN_SAND- J mvi TYPICAL 1' 3/4' ATER SERVICE REPLACEMENT ! SETTER TO BE OFFSET SUFF ' E '•Y FROM OLD SERVICE PERMIT NECTION. NOTE: 1. SINGLE SERVICE LINES ARE 3/4' TO 1' DIAMETER. 2. EQUAL MATERIALS MUST BE APPROVED BY THE CITY. =3:-- THREADS_ TO BE11137CCORP STOP. 4. COPPER SETTER FOR SERVICES WITH MULTI -RESIDENTIAL EQUIVALENTS AND ALL COMMERCIAL SERVICES SHALL HAVE A BY-PASS �1 WITH A VALVE WITH PADLOCK WINGS. fii�OUG � L `.rn �� nzifr� O,� 1!R/ 5. -N METER BOXES IN�SID WALKS. .DES-IREA :f.- EAE 'DRI•VEWAY. 6. D BEDDING MATERIAL SHALL :E - ED TO ;_ IL 77,AL k code:P.4.c.pipt_. - TYPE K COPPER PIPE - PVC - POLY ETHYLENE POSSIBLE PARTS LIST: 3 - 1' COUPLINGS MUELLER 110 X MIP 1 - 1' OR 3/4' CORP STOP FIP X FIP 1TOR 3/4' X a/ BRASS \ITCPI-C 1 - 1/4' X 1' OR 3/4' BRASS BUSHING 2-'i E NE. City of Tukwila W-21 • ANDARD RING & COVER n A ` J '\W\ O SEE VALVE BOX DETAIL C PEA GRAVEL 24' MAX. ADJUSTING CONCRETE RING OR BRICK (2 COURSES MIN.) PRECAST CONCRETE MANHOLE 12" MAX. 90 0 : END ASPHALTED. GALVANIZED OR COPPER PIPE from king co stondords but not used for tukwilo stondords 2" APCO HEAVY DUTY AIR RELEASE VALVE NO. 145C OR EOUAL • City of Tukwila IN STREET ENCASED AIR & VACUUM RELEASE Not to scale. DATE: 07/25/96 W-22 i •Astoorso\o ono -nano • CITY OF TUKWILA INFRASTRUCTURE DESIGN AND CONSTRUCTION STANDARDS FOR SANITARY SEWERS page S.1.0 Standards and Specifications References S-1 S.2.0 Permits S-1 S.2.1 Sanitary Side Sewer S-1 S.2.2 Sewer Main Extension S-1 S.2.3 Other S-1 S.3.0 Design Requirements S-2 S.3.1 Plans S-2 S3.2 General Sewer System Requirements S-3 S.3.21 Comprehensive Sewerage Plan S-3 S.3.22 Service Area Considerations S-3 S.3.23 Extent of Improvements S-4 S.3.3 Sanitary Sewer Mains S-4 S.3.31 Sewer Pipe S-4 0 S.3.32 _ Fittings S-4 S.3.33 Sewer Separation and Burial Depths S-5 S.3.34 Sanitary Sewer Slopes and Alignment S-5 S.3.35 Stream Crossings S-6 S.3.4 Sanitary Sewer Manholes S-6 S.3.41 Location S-6 S.3.42 Outside Drop Connection S-7 S.3.43 Channelization S-7 S.3.44 Manhole Foundations S-7 S.3.5 Sanitary Side Sewers S-7 S.3.51 Sewer Pipe S-8 5.3.52 Slope S-8 S.3.53 Separation and Depth S-8 S.3.54 Clean Outs S-9 S.3.55 Grease Interceptors S-9 S.3.6 Landscaping S-9 S.4.0 Construction S-10 S.4.1 Materials S-10 S.4.2 . Trench Excavation S-10 S.4.3 Pipe Bedding S-10 • S.4.4 Backfill S-11 S.5.0 Inspections S-11 • S.5.1 Field Inspections S-11 S.5.2 Sampling and Testing S-12 S.5.3 Pressure and Leakage Testing S-12 S.5.31 Air Testing S-12 S.5.32 Water Testing S-12 S.5.4 TV Inspection S-12 S.6.0 Standard Drawings S-16 • • • CITY OF TUKWILA INFRASTRUCTURE DESIGN AND CONSTRUCTION STANDARDS FOR SANITARY SEWER These specifications are the minimum criteria and standards for sanitary sewerage collection systems to be accepted by the City of Tukwila. The requirements herein apply equally to sewer systems to be privately owned as well as to public systems. Septic systems shall conform to King County standards and must be approved through the King County Department of Health Environmental Health Division. S.1.0 STANDARDS AND SPECIFICATIONS REFERENCES The City of Tukwila recognizes and uses the following standards and specifications in the order listed: 1. City of Tukwila Design and Construction Standards, current edition. 2. "Standard Specifications for Road, Bridge, and Municipal Construction", current edition, prepared by the Washington State Chapter of the American Public Works Association (APWA) and the Washington State Department of Transportation (WSDOT). 3. Criteria for Sewerage Works Design, Washington State Department of Health. 4. All other Federal and State special requirements where applicable. S.2.0 PERMITS The following list of permits apply to sanitary side sewers: S.2.1 SANITARY SIDE SEWER. A sanitary side sewer permit is required for connecting or reconnecting a building to a public or private main. S.2.2 SEWER MAIN EXTENSION. A sewer main extension permit is required for extending a sewer main, private or public. S.2.3 OTHER,. Permits from outside agencies, such as the Department of Health, Department of Fisheries, Corps of Engineers, Department of Ecology, WSDOT, are the responsibility of the Developer. The City may require proof of other required permits prior to issuing approval. S-1 • S.3.0 DESIGN REQUIREMENTS • The design of sanitary sewerage systems within the City of Tukwila shall meet the all requirements as listed in the STANDARD SPECIFICATIONS section above. The design shall include the following: S.3.1 PLANS. Plans for multifamily residential, or commercial, or industrial development, or development requiring construction of public infrastructure, within the City of Tukwila, shall be prepared and stamped by a Professional Engineer, licensed by the State of Washington. The plans shall be prepared in accordance with the standard details, plans and specifications contained herein. The following information shall be shown on all sewer plan submittals to the City: 1. Size, type and class of pipe. 2. Slope of pipe. 3. Invert elevation at all manholes, side sewers or clean outs and at the inlet and outlet of any manhole where there is a drop connection or a change in pipe size. 4. A profile of all lines. The profile shall include existing topography, proposed topography and invert elevations shown at point sewer leaves structures, connects to the main, and at all bends and junctions. The profile shall be shown on the same sheet as the plan for the corresponding line. 5. Permanent or proposed street grades. 6. All surface and subsurface utilities and improvement structures, and all pertinent topography. 7. Stations of all connection bends and tees. 8. Locations of existing buildings and services. S-2 • • • 9. Existing and proposed street right-of-way and easement limits for all utilities, including reference to any necessary permission and release from damages for owners of property through to the ultimate disposal point or facility. 10. All special structures, appurtenances or other construction. 11. Identify any possible utility conflicts. 12. Identify all clean outs. S.3.2 GENERAL SEWER SYSTEM REQUIREMENTS S.3.21 Comprehensive Sewerage Plan. The City of Tukwila has developed a comprehensive sewerage plan to allow for the orderly and cost effective development of sewerage facilities to serve existing and future users of the Tukwila sewer system. One element of the comprehensive plan is a map of proposed sewer extensions to service areas presently without sewers. The comprehensive plan of proposed extensions indicates the general location of interceptor and trunk sewers, intended to provide the framework for the collection system for upgrading deficient sewerage systems and also to allow for final build -out of the City in potential service areas. All proposed sewer improvements and extensions shall be consistent with the Comprehensive Sewer Plan, as well as with the comprehensive land use plans for the City of Tukwila. S.3.22 Service Area Considerations. All sewer extensions shall be designed for the ultimate development of the potential service area in accordance with the current land use plans and the Comprehensive Sewer Plan. The determination of the tributary area shall be based on the Comprehensive Sewer Plans adopted by the City of Tukwila and detailed studies of the areas affected. New sewer systems shall be designed on the basis of per capita flows or other methods as approved by the City and D.O.E. Detailed design calculations and service area maps shall be required for the system design. Said calculations shall be certified by a Professional Engineer. S-3 • • Special consideration must be given to sanitary sewer extensions for industrial districts. The potential for pre-treatment requirements, excessive sewage flows or special flow metering or sampling requirements must be considered prior to industrial sewer collection system designs. S.3.23 Extent Of Sewer Improvements. In general, a developer shall be required to extend the sanitary sewer improvements to the extreme boundary of the property in accordance with the comprehensive plans. The extension shall be of size and grade to be extended in the future as required by the plan. In cases where the plan does not require future extension, the sewer shall be extended as required to service that affected property. In cases where required extension of the sewer is beyond the needs for the development, and other benefiting properties can be identified, the Developer may be able to arrange through a latecomer's or developer's agreement for partial reimbursement at the time of other developments. Any such arrangement must be agreed to in writing through the City prior to acceptance of the system as public through the City Council and/or Mayor. S.3.3 SANITARY SEWER MAINS S.3.31 Sewer Pipe. Pipe approved by the City for sanitary mains includes: plain- .6enerete, reinforced concrete, oust—iron, ductile iron and PVC (polyvinyl chloride) pipe. All sanitary sewer pipe shall be clearly marked by type, class and/or thickness, as applicable. The lettering shall be legible and permanent under normal handling and storage conditions. All sewer pipe shall conform to the applicable APWA/WSDOT standards for pipe and materials. The supplier shall provide the City with a certificate for materials, as requested. The minimum size of sanitary sewer mains to be accepted by the City of Tukwila shall be eight inches (8") in diameter. Larger diameter sewers shall be required where indicated on the comprehensive plans or where design studies indicate larger sizes are required. S.3.32 Fittings. All fittings shall be made of the same materials as the pipe oras specified by the pipe manufacturer. All fittings shall be able to withstand test pressures, and conform to applicable standards of the APWA/WSDOT standard specifications. S-4 • S.3.33 Sewer Separation And Burial Depths. Separation from Water Main: All sanitary sewers shall be located at least ten feet (10') horizontally from any existing or proposed water main. Said separation shall be measured from the outside edges of the pipes. Should local conditions prevent the required separation, the sewer main shall be located below and no closer than four feet (4') horizontally from the water main. Said sewer shall be constructed of cast iron or ductile iron pipe with mechanical joint fittings. All sanitary sewer crossings under water mains shall be laid at such an elevation that the top of the sewer pipe is a minimum of eighteen inches (18") below the bottom of the water main. Separation from wells: No sanitary sewer shall be constructed within one hundred feet (100') of a potable water supply well or other water source. Main Depth: All sewer mains shall be buried deep enough to provide adequate depth to service the lowest fixtures in the properties served. In any case, the minimum depth of cover for a sewer in street right-of-way is four feet (4'). S.3.34 Sanitary Sewer Slopes And Alignment The following minimum slopes should be provided: SEWER SIZE MINIMUM SLOPE (INCHES) (FEET PER 100 FEET) 4 2.00 Side Sewer Only 6 2.00 Side Sewer Only 8 0.40 10 0.28 12 0.22 14 0.17 15 0.15 16 0.14 18 0.12 21 0.10 24 0.08 27 0.07 30 0.06 36 0.05 S-5 • • Sewers shall be laid with uniform slope between manholes. Sewers of 20% slope or greater shall be anchored securely with concrete anchors, approved by the City. Slopes greater than 200% are not allowed, a manhole and drop connection shall be used instead. Alignment. All sewers shall be designed with a straight alignment between manholes. Deflection of the pipe is acceptable only as the result of settlement, and must be within the pipe manufacturer's tolerances. S.3.35 Stream Crossings. Sewers entering or crossing streams shall be located at least five to seven feet (5-7') below the elevation of the stream bed. The sewer shall be designed to withstand all anticipated loading, erosion impacts and hydraulic forces. Construction methods and materials shall insure that the sewers remain water tight and free from changes in alignment or grade. All pipe under streams shall be ductile iron. Construction activities in waterways require permits and approvals from outside agencies. All work in stream crossings shall be scheduled during the summer months, at times when no conflicts with fish runs occur. All stream crossings shall be approved through the City Engineer. Stream crossings for sewer lines will be approved only when no other alternative is available. S.3.4 SANITARY SEWER MANHOLES All manholes shall be precuts and in conformity with City Standard Plans. S.3.41 Location. Sanitary sewer manholes are required at the following locations: 1. At the end of all sewer mains with reaches over 150 1.f. in length (mains less than 150 1.f. in length may be provided with clean outs in lieu of a manhole at upper end only). 2. All changes in slope or alignment. 3. All changes in pipe diameter. 4. All intersections of sewers eight inches (8") and larger (including side sewers). S-6 • • 5. At all intersections of sewer mains. 6. Manholes shall be located at distances not greater than 500 11 for all sewer mains. S.3.42 Outside Drop Connection. An outside drop connection shall be provided for a drop of twenty-four inches (24") or more (measured at the wall of the manhole -see standard drop connection plans). S.3.43 Channelization. All sanitary sewer manholes shall be (ally channeled to the crown of the sewers. The manholes shall be channeled to accomplish smooth flow through the transition and to minimize turbulence. To maintain the energy gradient and velocity through grade changes and changes in diameter at manholes, the invert of the downstream manhole shall be designed a minimum of 0.1 foot below all incoming invert elevations. S.3.44 Manhole Foundations. Care must be taken to insure that pressures exerted on the soils beneath the manholes and the adjacent mains are approximately uniform. Unequal soil pressures may result in excessive settlement at manholes. A spread foundation or other measures, may be required to reduce the unit load imposed by the manhole. S.3.5 SANITARY SIDE SEWERS. Not more than one house or building shall be connected with a lateral sanitary sewer, except in certain cases approved by the City Engineer. Buildings within 2501.f. of a sanitary sewer line or lateral shall be deemed to be within the area served by that sewer and shall be connected. A septic system may only be allowed per the requirements of King County. The sanitary side sewer shall be designed in such a manner as to be of sufficient size to carry all sanitary sewage and waste fluids of any kind from the buildings. Each toilet, sink, stationary wash stand, floor drain, or any other piece of equipment having waste fluids, shall be connected with said sanitary sewage system. S-7 • The City maintains as -built records concerning the location and approximate depth of side sewer stubs. These records are for informational purposes only and it shall be the Developer's responsibility to verify the location and depth of the existing services. In cases where a stub has not been supplied, the Developer shall connect directly to the City main. The Developer shall assume all costs for said connection, including, but not limited to, street repairs, tapping charges, bonds, permits, etc. Cuts into City streets shall be repaired per the City's Standard Pavement Patch Plan (available in the Public Works Department). Side sewer connections into Metro interceptor sewer lines shall be allowed only by written permission from Metro. The City will be the agency through which permits will be obtained for such connections. The Permittee is responsible for all coordinations with Metro for necessary inspections and approvals. • S.3.51 Sewer Pipe. Materials allowable for sanitary side sewer construction are plastic (PVC minimum schedule 35), concrete where soil conditions permit and slopes are less than 15%, ductile iron pipe, C.I. or PVC pipe where its use is justified due to scouring velocities or other special soils foundation problems exist. Ductile iron pipe placed in peat areas or areas of potential corrosion shall be polyethylene encased. All side sewers shall be a minimum diameter of six inches (6"). Residential side sewers may be reduced to a minimum of four inches (4") from the property line to the building. S.3.52 Slope. All sanitary side sewers shall be laid on not less than two percent (2%) grade, nor greater than one vertical to two foot horizontal. S.3.53 Separation And Depth. The side sewer shall not be less than sixty inches (60") from any building, except at the point of entry. Where the sewer is below the building foundation, the horizontal distance from the foundation must be equal or greater than the vertical separation. The pipe shall not have less than twelve inches (12") of cover inside the property line. S-8 S.3.54 Clean Outs. All side sewers shall have clean outs located at one hundred foot (100') intervals, and at the termination of the sewer at the building, and all vertical or horizontal bends in the pipe of ninety degrees (90°) or greater. The maximum length of a six inch (6") side sewer shall be one hundred fifty feet (150'). S.3.55 Grease Interceptors. Grease interceptors are required on all buildings where food preparation occurs; or where, in the opinion of the City Engineer, they are necessary for the proper handling of liquid wastes. When required, grease interceptors shall comply with section 711 of the Uniform Plumbing Code, and the following: 1.) Location. The vault shall be located outside the building, not closer than five feet (5') nor farther than twenty-five feet (25') from the building foundation. 2.) Design. The tank shall be a double baffle type. 3.) Size. Tank sizing shall be per Appendix H of the Uniform Plumbing Code; with meals per hour being equal to seating capacity of the restaurant. 4.) Maintenance. It is the Owner's responsibility to clean and maintain the trap on a regularly scheduled basis (typically monthly). The City may inspect the trap; and, as the result of such inspection, require the Owner to provide more frequent service. 5.) All grey water (sinks, dishwashers, floor drains, drains under garbage compactors, etc.), and only grey water, shall be routed through the trap. S.3.6 LANDSCAPING. No tree shall be planted within thirty feet (30') of a sewer pipe, unless suitable protection from root growth is provided (see also Section R.3.6). 6:) 6/e4tr¢— /'C¢ -u ut.cf `J S 24 --*-3• Gl7`/�j �y• ) 4_.49 p il"‘ Lc//// b2 Lice" d -z Gar2� • • S.4.0 CONSTRUCTION All work performed in the construction of City infrastructure shall be per approved plans only. The Contractor is required to maintain a set of approved plans and permits, on the job site, whenever work is being accomplished. As -built mylars and Autocad 3.5" discs will be required at the completion of the project and prior to final acceptance. All work is to be performed in accordance with all applicable Federal, State and local safety laws. S.4.1 MATERIALS All materials used for construction of City of Tukwila sanitary sewers shall be new and undamaged. All materials used on the project shall be inspected and approved by the City prior to installation. Acceptance of the materials by the City shall not relieve the Developer/Contractor from the responsibility to guarantee construction and materials. All sanitary sewer pipe shall be clearly marked by type, class and/or thickness, as applicable. The lettering shall be legible and permanent under normal handling and storage conditions. The supplier shall provide the City with a certificate for materials, as requested. S.4.2 TRENCH EXCAVATION Trenches shall be provided per the City's Standard Plans and OSHA/WISHA requirements. The trench shall be kept free from water until joining is complete. Surface water shall be diverted so as not to enter the trench. The Contractor shall maintain sufficient pumping equipment on the job to insure that these provisions are carried out. The Contractor shall perform all excavation of every description and of whatever substance encountered and boulders, rocks, roots and other obstructions shall be entirely removed or cut out to the width of the trench and to a depth of six inches (6") below sewer grade. Where material is removed from below grade, the trench shall be filled to grade with material satisfactory to the City and thoroughly compacted. S.4.3 PIPE BEDDING All pipe bedding shall be in accordance with the City's Standard Pipe Bedding Plan, with all sanitary sewer pipe having Type 2 bedding as specified by the APWA/WSDOT standard specifications. Bedding for PVC sewer pipe shall extend at least six inches (6") above the crown of the sewer pipe as specified in the City's Standard Plan and APWA/WSDOT standard specifications. S-10 • • Pipe bedding shall be in accordance with the Standard Plans, or better if soils conditions warrant. Backfill shall be placed at six inch (6") lifts maximum and compacted to ninety-five percent (95%) throughout. S.4.4 BACKFILL Backfilling and surface restoration shall closely follow installation of pipe, so that not more than one hundred feet (100') is left exposed without express approval of the City. Select backfill material shall be placed and compacted above the bedding material, as outlined in City Standard Plans, and compacted to ninety-five percent (95%) of the maximum density. When other governmental agencies other than the City have jurisdiction over roadways within the construction, the backfill and compaction shall be done to the satisfaction of the agency having jurisdiction. If suitable backfill material, as determined by the City, is not available from trenching operations, the City may order the placing of select backfill. S.5.0 INSPECTIONS S.5.1 FIELD INSPECTIONS All sanitary sewer construction is to be done under the control and at the direction of a designated City Inspector. It is the Contractor's responsibility to arrange for inspections 24 hours in advance. The Contractor shall schedule inspection by the City Inspector sufficient to confirm that all portions of the work are done in accordance with approved plans and specifications, including: 1. Before backfilling, for compliance with all construction standards. 2. For all required air and water tests. 3. Prior to the placement of any materials which would preclude full and complete inspection of construction which will be buried or covered. Work covered prior to inspection will be uncovered at the expense of the Contractor. S-11 • S.5.2 SAMPLING AND TESTING Tests and material sampling for purposes of determining compliance with the specifications, shall be required at the discretion of the City Inspector. All costs incurred for testing or sampling, done at the request of the City Inspector, shall be the responsibility of the Contractor. Determination of field density of compacted earth will be per ASTM D1557 "Standard". S.5.3 PRESSURE AND LEAKAGE TESTING Manholes shall be channeled prior to testing. 5.5.31 Air Testing. All sanitary sewer pipelines shall be air tested in accordance with APWA/WSDOT standard specifications for air -permeable or non air -permeable pipe, as applicable. The Contractor shall furnish all materials and equipment necessary for conducting the tests and all testing shall be performed under the supervision of the City Inspector. The Contractor may desire to make an air test prior to backfilling for his own purposes. However, the air test for acceptance shall be made after backfilling has been completed and compacted. S.5.32 Water Testing. Water testing is allowed for sanitary side sewers only. S.5.4 T.V. INSPECTION All new sanitary sewer mains shall be T.V. camera inspected by the Contractor on VHS format and presented to the City's Inspector for review. The Contractor/Developer shall also be responsible to insure that the sewer mains are in fact ready for T.V. camera inspection. The Contractor shall bear all costs incurred in correcting any deficiencies found during T.V. inspection, including the cost of any additional T.V. inspection required to verify the corrections. The scope of work shall be to videotape and internally inspect pipeline sections by means of closed circuit television. The inspection will be done one section at a time. The tape shall contain consecutive runs of sections. Closed circuit television inspection shall be performed only after sewer lines have been thoroughly cleaned so that a clear, definitive picture of the interior of the pipe can be obtained. S-12 • • • The television camera used for the inspection shall be one specifically designed and constructed for such inspections. Lighting and camera quality shall be suitable to allow a clear, in -focus color picture of a minimum of six (6) lineal feet of the entire inside periphery of the sewer pipe. To insure peak picture quality throughout all conditions encountered during the survey, a variable intensity control of the camera lights and remote control adjustments for focus and iris shall be located at the monitoring station. Focal distance shall be adjustable through a range of from six inches (6") to infinity. The travel speed of the camera shall be uniform and not exceed thirty feet (30') per minute. Any means of propelling the camera through the sewer which would exceed this rate of speed or produce non-uniform or jerky movements will not be acceptable. Generally speaking, only devices using relatively non -elastic towing cable will provide satisfactory performance in this regard. In no case will the hose of a high -velocity water cleaning machine be allowed for use as a tow cable. At the Contractor's discretion or at the discretion of the engineer, the camera shall be stopped and/or backed up to view and analyze conditions that appear unusual or uncommon to a good sound sewer. The operating technician shall at all times be able to move the camera through the line in either direction without loss of quality in the video presentation on the monitor. Such movement reversal shall be accomplished without altering the correct registration of pipe footage. The picture at all times shall be free of electrical interference and provide a clear, stable image of the resolutions specified. Videotape recording of all sewer line inspections shall be made in color on magnetic tape VHS high-grade recorded at VHS two-hour transport speed. The replay of the recorded video information, when reviewed on a monitor receiver such as a Sony model CKV1900F, shall be free of electrical interference and provide a clear, stable image. The audio portion of the composite signal shall be sufficiently free from electrical interference and background noise to provide complete intelligibility of the oral report. Audio reports shall be recorded by the operating technician on the video tapes as they are being produced and shall include the location of the sewer, a manhole -to -manhole direction of travel, and a description of the conditions in the sewer line as they are encountered. In no case will dubbing of the audio portion be allowed after the survey. The videotaping and monitoring equipment shall have the capability to instantly review both video and audio quality of the videotape productions at all times during the television survey. The purpose of the video recording shall be to supply a permanent visual and audio record of the pipeline section being surveyed, and the video tapes shall become the property of the City upon completion of the project. S-13 • • • Documentation. In addition to video and audio reporting, television inspection logs shall be kept by the Contractor. Observation reports shall be submitted to the City of Tukwila in a form of printed or typed reports. Records for each line segment televised shall include, but not be limited to, the following information: 1. Date of television inspection. 2. Time of television inspection. 3. Inspection operator name. 4. Precipitation condition at time of inspection: a. None b. Light rain c. Heavy rain d. Snow 5. Ground condition at time of inspection: a. Dry b. Damp c. Wet d. Standing water 6. Surface type: a. Paved b. Unpaved 7. Pipe diameter in inches 8. Pipe depth in feet 9. Pipe material: a. Concrete b. Asbestos cement c. PVC d. Cast/ductile iron e. Other (specify) S-14 • • • 10. Length between pipe joints in feet 11. Videotape cartridge number 12. Manhole depth and size In addition to this information, the Contractor shall clearly show the location, relative to adjacent manholes, of each infiltration point and other joints of significance, such as the location of building sewers, joints, unusual conditions, etc. S-15 • INDEX OF SANITARY SEWER STANDARD PLANS FOR THE CITY OF TUKWILA S-1 Sanitary Side Sewer S-2 8" Main Clean -Out S-3 Access, Channelization, and Step Detail S-4 Sanitary Sewer Manhole - 48" and 54" S-5 72" Sanitary Sewer Manhole - Types IA4 and IB4 S-6 Shallow Sanitary Sewer Manhole - 48" and 54" S-7 Shallow Sanitary Sewer Manhole - 72" and 96" S-8 24" Manhole Frame with Cover • S-9 Reinforcing Details for Manhole Top Slabs S-10 Drop Connection S-11 Pipe Bedding for Sanitary Sewers S-12 Grease Interceptor S-13 Inside Drop Manhole S-16 • • 1 PROPERTY LINE Materiels: (All New) PVC — Min. schedule 35. Concrete — Where soil conditions permit and slopes ore less thon 157.. Ductile iron(polyethylene encased) — peot or potentiol corrosion oreos. Ductile or Cost Iron — justified due to scouring velocities or soil problems. Cover: 12" Min Cover required over all pipe. Slope: Min. 27. Max. 207. without anchors Anchor for >20% Plugged Li I Clean Out (Total 90' requires J , Clean Out) r O t 0 I 0. 0. I c o 'o m L H � i .s Eo i m o u c c o• a X d 0 0 0 is 0 0 Long Sweep Bend Plugged Clean Out (Wye) Show Address on Plan. 523 BIRCH ST. 10' Min. 4' Sewer Pipe Soil Pipe Adopter J L` (Remove or Fill Existing Septic Tonk) 1 � Cj• INSPECTION TEE AT CITY R/W LINE d O Sanitory Sewer Must Be 18 Below Woter Line When Crossing. W -J CITY R/W Clean Out 6' Plug 6 X 6 X 4 WYE 6' SEWER PIPE STREET LINE 1-1 30' Test Tee & Clean Out Detail 8' or LARGER MAIN SEWER Use Soddle for Existing Moin. City of Tukwila SANITARY SIDE SEWER Not to scale. DATE: 06/01/92 I S-1 •�•••_• „t PASW W,7aOM1-,AC • 111/2" Roise – 1/2" Wide Border 10" 8, 31//47-11 9" IN 8- 3/4" Squares Spaced -3/4" As Indicated –Ht 1/8- r 2 7/8" 45 deg.(1/8) Bend 5/8_J 4" .• Dio. 2' Finish Grade Fibre Joint Pocking 15 - Cast Iron Ring And Cover Pipe Material As Specified By The Engineer City of Tukwila 01•••••••••* 01.01••••••••••It AMAIN CLEAN-OUT Not to scale.' DATE: 06/01/92 S-2 ILL O.NSUNDMICAIC.01W.11.0•0 STEP DETAIL c 9 1/2" for Precast M.H. 12"� Legs moy be porollel or opproximotely rodiol at option of monufocturer except thot all steps in ony manhole shall be similar. Steps to be Iocoted over shelf. not over chonnel. MH Ring & Cover ACCESS DETAIL See S—B. 24" Max. 1 8" Min. 18" Mox. i i 24" 8" Mox. Precost Concrete Rings Precost Cone Section CHANNELIZATION DETAIL Kor—N—Seal Inside Drop (Min 0.1' Max 1.5') •,ee, ��I 1 e e 6" Min. 12" Typ. 6" Slope Shelf to Pipe: 4R a= Side Chonnel • Note: Rubber Gosket & Grout at All Joints. Grout All Lifting Eye Holes. Step See Detail I e, 6" Min. 1 Crushed Rock 12" Min. 4" Min.5 Construct Chonnel & Shelf in Field Smooth Finish with 5 (1/2) Class Conc. 5 Sock Cement Mix with 1/2" Aggregate. Precost Bose City of Tukwila ACCESS, CHANNELIZATION, & STEP DETAIL Not to scale.. DATE: 06/01 /92 S-3 • 8' Min. 25' Max. r L See Access Detail S-3. r i 1. 24" See Channel. Detail S-3. Q CCM - r - r 1 i Manhole Ring and Cover See 5-8. 4"Min. 8" Min ot C.L. 18" Max. See Note 2. Step See S-3. J 12" Mox. See Note 2. Notes: 1. Mox. Pipe Diameter moy be limited by Pipe Configuration or os determined by Engineer. 2. The Maximum Dimension from Manhole to Pipe Joint opplies only to Pipe Diometers 24" and less. 3. Rubber Gasket & Grout ot All Joints. 4. Grout All Lifting Eye Holes. Mox. 21" for 48" M.H. Mox. 36" for 54" M.H. See Note 1. 4"Min. -r 6" City of Tukwila SANITARY SEWER MANHOLE 48" & 54" Not to scale. DATE: 06/01/92 1 S-4 • • r L NOTE: RUBBER GASKET & GROUT AT ALL JOINTS. 72"-48" Reducing Slob 24" 5. Max. Pipe Size 42" 72" 6" Min. 48" 6 1/2 12" Typ. 1 See Access Detail S-3. J Precost Bose Section City of Tukwila Steps See S-3. See Channel. Detail S-3. 7 1 Shelf 72" SANITARY SEWER MANHOLE TYPES IA4 & IB4 Not to scale.) DATE: 05/01/92 s -s • • 8' Max. r 6" Min 12" Min. & 24" Mox. 24" 54" Costing See S-8. Adjustment Section Step See S-3. 54" Top Slob Cover See S-9. See Channel. Detail S-3. Precost Bose J 12" Min. & 24" Mox. 8' Mox. Max Pipe Size 36" Mox Pipe Size Moy Be Limited By Pipe Configuration 54" MANHOLE Costing See 5-8. Adjustment Section Step See S-3. 48" Top Slob Cover See S-9. See Channel. Detail S-3. 1 6" Min Note: —J Precost Bose 36" Opening required when Crown to Slob is less thon 4'. Max Pipe Size 21" Mox Pipe Size Moy Be Limited By Pipe Configuration 48" MANHOLE City of Tukwila SHALLOW SANITARY SEWER MANHOLE 48" & 54" Not to scale.: DATE: 06/01/92 js-6 i -ki:-..-,;i.66,--a--i;.--' • 11'Max. r L 1 12" 12" Min. & 24" Max. //// /Ill 24"— c r 8" Min. 96" 1 12" Min. 11' Mox. 12" Min. & 24" Max. Precost Bose 4Wt 8" 24" -- 72" 1 Costing See S-8. Adjustment Section Step See S-3. 96" Flot Slob Cover See S-9. Precost Bose Section See Channel. Detail S-3. J Max Pipe Size 60" Max Pipe Size Moy Be Limited By Pipe Configurotion Note: Locote Access Hole Over Chonnel On All Type 111 Manholes 96" MANHOLE Costing See S-8. Adjustment Section Step See S-3. 72" Flot Slob Cover See S-9. Precost Monhole Section See Channel. Detail S-3. 6" Min. Precost Bose —J Note: For >48" Pipes. Lodder must be provided for occess. Max Pipe Size 48" Max Pipe Size Moy Be Limited By Pipe Configurotion Const. Chonnel Shelf 72" MANHOLE City of Tukwila SHALLOW SANITARY SEWER MANHOLE 72" & 96" Not to .cele. DATE: 06/01/92 S-7 AL .,f,.i eo\s ,0„h,AC Top of web 1 1 3/4" 5" Frame Plan 26 3/8" 25 1/4" • Covers shall hove the word "SEWER" in 2" roised letters when used in connection with sanitary sewer installations, or "STORM" when in connection with storm drain installation, or "WATER" when in connection with potable water distribution. 1"Core-3 Holes J L A 8 webs 1/2"thick Non—Skid Pattern to be cast integrol on top of cover. Mochine Seot 2 1/2 25" L3/81 ! 1. t Section A—A Cost Iron—Non Locking Cover Minimum weight 150 lbs. Note: Frome to be grouted in place. 1" Seot Mochine & Ground // 1 1/4" 24' 34 - Section B—B Cast Iron Frame Minimum weight 210 lbs City of Tukwila 24" MANHOLE FRAME WITH COVER Not to scale. DATE: 06/01/92 S-8 NL • • #6 Bor 2"Clr 96"Slob with 48"Opening 0.0. of 96" Monhole Section 96"Slab with 24"Opening #6 Bors 0 7"Centers Both Directions Bottom Foce Both Directions #6 Bor 2"CIr. #5 Bor 72"Slab with 48"Opening Monhole Sec. JO 2"CIr: T 54"Slob with 24"Opening 12" 72"Slab with 24"Opening #5 Bors 0 6"Centers Both Directions Bottom Face 2"CIr. #5 Bor B"L 2"CIr - 48"Slob with 24"Opening #4 Bors 0 6"Centers Bottom Foce #4 Bor .0 0. of 48" Monhole Sep_ 2"CIr. City of Tukwila REINFORCING DETAILS FOR MANHOLE TOP SLABS Not to scale. DATE: 06/01 /92 S-9 • RC PASUMWICASMIUM,SMO • 6"Min. Note: Drop piping to be some size os intercepted sewer. One Length of Ductile Iron Pipe (Class 50) To Solid Bearing When Spon is More Than 4'. Flexible Joint Bockfill with compocted moteriol os directed by the engineer. 1" Mox. 6 Min. ' Class 50 Cost Iron 90' Bend. PLAN See Access 1 t 24" Kor—N—Seol 6 1/2" 12" Typ. 6"Min. 6"Min. Closs C Concrete Mortar Dom or Plug os required by Engineer. Steps See S-4. Tee 1/2 Blind Flonge As Dom with Stainless Steel Bolts. d/2 Class 50 Cost Iron Tee Closs 50 Cost Iron Pipe. 20'Mox. • s_ Cern Conc Closs 5(1 1/2) Cement 5 Sock Mix with 1 1/2" Aggrogote Ductile Iron Drop Connection See Channel. Detail S-3. Flexible Joint, 2" Min. Cover Bockfill with compocted moteriol os directed by engineer. Strop tq Manhole Every 5. 6"Min. 6" Min Cover All Pipe Except Ductile Iron Pipe Shall Be Concrete Encosed. Cement Concrete Class C Poured in Ploce Typicol Monhole Foundotion Construction Concrete Encosed Drop Connection City of Tukwila DROP CONNECTION Not to -cele. DATE: 06/01/92 S-10 nc .AanoroAm.ons..ee.o • W--1 i Limit of Pipe Zone Alternote ���������Laid—bock Sidefill Material ► ����������� , (See Note) ►•�•��•��•�•���������4 6" Trench Bedding Material, Type I, Rigid, See Grodotion Table Foundation Level BEDDING FOR RIGID PIPE IN TRENCHES Notes: 1. Provide uniform support under borrel. 2. Hand tomp under hounches. 3. Compact bedding moteriol to 95% MAX density except directly over pipe, hond tomp only. 4. Moke surface of bedding level, or slope up owoy from pipe. 5. Trench width(W) — Pipe I.D. plus 24" I.D. or smoller. —Pipe I.D. plus 36" than 24" I.D. — The pipe zone will be the octuol trench width, except that for Class A bedding, the Min. concrete width sholl be 1 1/2 I.D. + 18". 6. Sidefill moterial sholl conform to backfill except that rocks or lumps larger thon 1" per foot of pipe diameter shall not be used. Mox. for pipe 24" Mox. for pipe larger DIMENSION CLASS A CLASS 8 a 4"MIN 1/4 I.D. 12"MAX 4 -MIN, 27"& under 6"MIN, over 27"I.D. b 1/4 0.D. 1/2 0.D. c 3/4 0.D. 1/2 0.D. Sieve Size % Possing 3/4' 100 3/8" 95-100 #8 0-10 #200 0-3 Sand equivolent 35 Min. Bedding Material Gradation Table Sieve Size % Possing 3" 100 1/4" 25 Min. # 40 40 Max. (j 200 7 1/2 Max. Sond Equivolent 35 Min. Bockfill Moteriol Gradation Table City of Tukwila PIPE BEDDING FOR SANITARY SEWERS Not to scale. DATE: 06/01/92 s-1 .,,wd.dxI,..,,MIC CONCRETE SLOT BOTH SIDES PLAN VIEW 24' DIA. LOCKING FRAME 6 COVER AIR t GAS TIGHT 3 PLCS 12 PLCS ON 577 -GA) 2/3 LENGTH 1/3 LENGTH SECTION VIEW AA SIZING CHART CLEAR ACCESS OPENINGS m 750 950 ri GROUT AL p — SIDES ' — hil PRECAST DIVIDER 5000 6000 1. — s 577 -GA CONCRETE SLOT BOTH SIDES PLAN VIEW 24' DIA. LOCKING FRAME 6 COVER AIR t GAS TIGHT 3 PLCS 12 PLCS ON 577 -GA) 2/3 LENGTH 1/3 LENGTH SECTION VIEW AA SIZING CHART Gallon Copocity 600 750 950 1000 1250 1500 1750 2000 2500 2750 3000 4000 5000 6000 UV Co. Model No. 577 -GA 577 -GA 577 -GA 4484 -GA 4484 -GA 5106 -GA 5106 -GA 612 -GA 612 -GA 612 -GA 712 -GA 712 -GA 818 -GA 818 -GA - Dim "A" 7'-0" 7'-0" 7'-0" 9'-0 9'-0" 11'-2" 11.-2" 12'-8" 12'-8- 12'-8" 13'-1 13'-1" 19'-11` 19. -11 Dim "8" 4'-8" 4'-8" 4'-8" 5'-0 5.-0 5'-8" 5'-8" 6'-8" 6'-8" 6'-8" 8'-0" 8"-0" 9'-11" 9"-11" Dim "C" 7.-0" 7.-0" 7.-0- 7'-2" 7.-2- 7.-2" 7.-2- 8•-0- 8'-0- 8'-0- 8•-7" 8'-7- 8'-11" 10"-5" - Dim "D- 3'-6" 4'-3" 5'-3" 4'-2" 5'-2" 4'-4" 4'-11" 4'-7" 5'-6" 6'-0" 5'-0" 6'-6" 6'-2" r -2 Water Depth Oim "E" 3'-2" 3'-11" 4'-11" 3'-10" 4'-10" 4'-O 4'-7 3'-1O 4'-9 5'-3 4.-7" 6'-t C-9" 5'-9' NOTES: DESIGN CRITERIA: Uniform Plumbing Code -Appendix H Number Of MeolsWaste Flow Retention Storoge _ Copocity Per Peok Hours X Rote X Time X Factor - In Gollons • I. CONCRETE. 28 DAT COMPRESSIVE STRENGTH re • 4500 psi 2. REBAR, ASTM A-615 GRADE 60. 3. MESH. ASTM A-185 GRADE 65. 4. DESIGN. ACI -318-83 BUILDING CODE ASTM C-857 'MINIMUM STRUCTURAL DESIGN LOADING FOR MONOLITHIC OR SECTIONAL PRECAST CONCRETE VATER AND VASTEVATER STRUCTURES'. 5. LOADS. H-20 TRUCK VHEEL V/ 30X IMPACT PER AASHTD. 6. FILL v/ CLEAN, ATER PRIOR TO START UP OF SYSTEM. 7. CONTRACTOR To -,S PL & INSTALL ALL PIPING t SAMPLING TEES. 8. GRAY VATER ONLY. BLACK VATER SHALL BE CARRIED BY SEPARATE SIDE SEVER. J p UTILITY VAULT COMPANY OR EQUAL. City of Tukwila GREASE INTERCEPTOR SINGLE VAULT SYSTEM --DOUBLE BAFFLE FOR VEGETABLE -ANIMAL FAT, GREASE 8 OIL 600-6000 GALLON CAPACITIES Not to scale. DATE: 07/25/96 S-12 ►.‘,swwo„R.an,-.lac ♦ NOTE: INSIDE DROPS TO BE UTIUZED ONLY WHEN SYSTEM IS PVC PIPE. REMOVE GASKET FROM PVC ELBOW SEE ACCESS DETAIL S-3 L 1— • ♦ ' S. N. "V Cut top section at 90' Bend as shown See Detail A above J Stainless Steel Pipe Clomp DETAIL A KOR—N—SEAL BOOT Pipe Connection. or Equal VARIES 2' MIN -----r4 ---- ' • • p • • r • • L SEE CHANNEL DETAIL S-3 PVC PIPE SAME SIZE STAINLESS STEEL STRAPS BOLTED TO MANHOLE WALL. MAX. SPACING 6' J RUBBER BOOT FLAP TO PREVENT SPLASHING City of Tukwila INSIDE DROP MANHOLE Not to scale. DATE: 06/01/92 S-13 As IMsmone*soons-I1e4