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Award Date: April 21, 2025 CAG-25-047 Awarded to: OMA Construction, Inc. P.O. Box 429 Maple Valley, WA 98038 City of Renton SE 172nd Street Green Stormwater Infrastructure Project SWP-27-4037 CONSTRUCTION DOCUMENTS Funded in part by the Washington State Department of Ecology City of Renton 1055 South Grady Way Renton WA 98057 Project Manager: Kevin Evans, 425-430-7264 krevans@rentonwa.gov City of Renton Forms, Contract Forms, Conditions of the Contract, Plans and Permits CITY OF RENTON RENTON, WASHINGTON CONTRACT DOCUMENTS for the SE 172nd Street Green Stormwater Infrastructure Project SWP-27-4037 (CONSTRUCTION DOCUMENTS) CONTRACT FORMS CONDITIONS OF THE CONTRACT SPECIFICATIONS PLANS Funded in part by the Washington State Department of Ecology Prepared by: Osborn Consulting Inc. 1800 112thh Ave NE, Suite 220-E Bellevue WA 98004 425-451-4009 Public Works Department SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE PROJECT Project: SWP-27-4037 CONTRACT DOCUMENT TABLE OF CONTENTS 1. Summary of Fair Practices Policy 2. Summary of Americans with Disability Act Policy 3. Scope of Work 4. Project Location Map 5. Instructions to Bidders 6. Call for Bids 7. *Proposal and Combined Affidavit & Certificate Form: Non-Collusion, Anti-Trust Claims, Minimum Wage 8. *Proposal Bid Bond Form 9. *Department of Labor and Industries Certificate Registration 10. *Schedule of Prices 11. *Acknowledgement of Receipt of Addenda 12. *Certification of Compliance with Wage Payment Statutes 13. *Acknowledgement of Apprentice Utilization Requirement 14. *Subcontractor List 15. Contract Bond to the City of Renton 16. Fair Practices Policy Affidavit of Compliance 17. Contract Agreement 18. Retainage Selection 19. City of Renton Insurance Requirements 20. Washington State Prevailing Minimum Hourly Wage Rates Reference 21. Statement of Intent to Pay Prevailing Wages 22. Affidavit of Prevailing Wages Paid 23. Traffic Control Plan Application 24. Project Special Provisions 25. Standard Details 26. Department of Ecology Specifications Insert 27. Survey Monument Destruction and Reestablishment 28. Geotechnical Report 29. Draft Stormwater Pollution Prevention Plan 30. Construction Stormwater General Permit 31. Puget Sound Energy Gas Main Relocation plan (Work to be completed by others) 32. Utility Pothole Data 33. Inadvertent Discovery Plan 34. Construction Plans (Bound Separately) Documents marked as follows must be submitted at the time noted and must be executed by the Contractor, President and Vice President or Secretary if corporation by-laws permit. All pages must be signed. In the event another person has been duly authorized to execute contracts, a copy of the corporation minutes establishing this authority must be attached to the bid document. * Submit with Bid Submit after Notice of Award (at the latest) CONSENT IN LIEU OF SPECIAL MEETING OF DIRECTORS OF OMA CONSTRUCTION, INC. The undersigned, being all of the Directors and Officers of OMA Construction, Inc., a Washington business corporation (the "Company"), without the necessity of a formal meeting and hereby waive any notice required by law, adopt the following resolutions and consent to the taking of the actions set forth herein: 1. DIRECTOR: Resolved, that Barry O’Young is the Director of the Company. 2. SIGNING AUTHORITY: Resolved further, that as the Vice President of the Company, Brandon Akers is authorized to execute any and all applicable documents on behalf of the Company Execution of this Consent, which may be accomplished by facsimile, shall constitute written waiver of any notice required by law. Effective the 08th of November, 2006 By: Barry O’Young Its: Director 1.Summary of Fair Practices Policy 2.Summary of Americans with Disability Act Policy Public Works Department 3. Scope of Work SE 172nd STREET GREEN STORMWATER INFRASTRUCTURE PROJECT SWP-27-4037 SCOPE OF WORK The work involved under the terms of this contract document shall be full and complete installation of the facilities, as shown on the plans and as described in the construction specifications, to include but not be limited to: • Construction surveying, staking, and production of as-built plans, • Create a SPCC plan • Mobilization and demobilization • Traffic control, • Installing and maintaining adequate Temporary Erosion and Sediment Control measures, • Protecting of existing utilities, utility potholing and resolution of utility conflicts, • Protection, removal, and/or relocation of existing site features such as mailboxes, fences, pipes, trees, etc., • Sawcut, removal, and replacement of asphalt concrete pavement and cement concrete sidewalks, • Trench excavation, including dewatering, shoring, removal of any existing unsuitable material, disposal of excavated material, and treatment and/or removal of any contaminated soil and/or water, • Installing new storm system of approximately 4,459 linear feet of 4-inch, 8-inch, 12-inch and 18- inch diameter storm sewer pipe, including 55 catch basins and 1 custom rectangular structure, • CCTV inspect all installed storm sewer pipe. • Installing approximately 920 lineal feet of new 8-in ductile iron watermain with appurtenances, • Installing of approximately 359 linear feet of water main, 8-inch ductile iron pipe with polywrap, including gate valves, fire hydrant assemblies, thrust blocking and dead man anchor blocks, • Installation of approximately 5-1” water service connections and transfer of domestic services, • Connection of new water system to existing water system, • Installing approximately 160 linear feet of 12-inch sewer lateral • Installing of approximately 40 linear feet of sewer force main, 12-inch ductile iron pipe including fittings and thrust blocking, • Connection for new sewer lateral and sewer force main to existing systems, • Temporary sewer bypass • Installation of new 14 BioPod water quality units, including all necessary installation methods provided by the manufacture, • Trench backfill with suitable material and compaction to required standards, • Installing hot mix asphalt patch for utility trenches, • Installing concrete curbs and gutters, driveway entrances and curb ramps, • Installing pervious concrete sidewalks, • Installing roadway planter strips with seeded lawn, and irrigation system, Public Works Department 3. Scope of Work • Installing hot mix asphalt roadway pavement, overlay, and speed cushion, • Adjusting utility to grade, • Installing permanent signing and striping, • Performing landscape and property restoration. The estimated project cost is $4,000,000 to $4,400,000$4,500,000. A total of 125 working days is allowed for completion of the project. For Bid Item Descriptions see Special Provisions Section 1-09.14 Any contractor connected with this project shall comply with all Federal, State, County, and City codes and regulations applicable to such work and perform the work in accordance with the plans and specifications of this contract document. This Contract includes an Apprentice Utilization Requirement. Fifteen percent (15%) or more of project Labor Hours shall be performed by Apprentices unless Good Faith Efforts are accepted. Apprentice Utilization will be determined using the Department of Labor and Industries (L&I) online Prevailing Wage Intent & Affidavit (PWIA) system. 72,224 6,019 SE 172nd St Green Stormwater Infrastructure Vicinity Map Legend 4,09302,046 Feet Notes 4,093 WGS_1984_Web_Mercator_Auxiliary_Sphere All data, information, and maps are provided "as is" without warranty or any representation of accuracy, timeliness of completeness. The burden for determining accuracy, completeness, timeliness, merchantability and fitness for or the appropriateness for use rests solely on the user. City and County Labels City and County Boundary Renton <all other values> Citations PROJECT LOCATION 4,514 376 SE 172nd St Green Stormwater Infrastructure Site Map Legend 2560128 Feet Notes 256 WGS_1984_Web_Mercator_Auxiliary_Sphere All data, information, and maps are provided "as is" without warranty or any representation of accuracy, timeliness of completeness. The burden for determining accuracy, completeness, timeliness, merchantability and fitness for or the appropriateness for use rests solely on the user. City and County Labels Parcels City and County Boundary Renton <all other values> Streets 2023.sid Red: Band_1 Green: Band_2 Blue: Band_3 PROJECT AREA Public Works Department 5. Instructions to Bidders 1 SE 172nd STREET GREEN STORMWATER INFRASTRUCTURE PROJECT SWP-27-4037 INSTRUCTIONS TO BIDDERS 1. Electronic Sealed bids for this proposal will be received by the City of Renton at cityclerk@rentonwa.govat the lobby of Renton City Hall, 1055 South Grady Way, Renton 98057, until the time and date specified in the Call for Bids. At this time the bids will be publicly opened and read via a Zoom video-conferencing meeting, after which the bids will be considered and the award made as early as practicable. No proposal may be changed or withdrawn after the time set for receiving bids. Proposals shall be submitted on the forms attached hereto. 2 Any omissions, discrepancies or need for interpretation should be brought, in writing, to the attention of the Project Engineer. Written addenda to clarify questions that arise may then be issued. No oral statements by Owner, Engineer, or other representative of the owner shall, in any way, modify the contract documents, whether made before or after letting the contract. 3 The work to be done is shown in the plans and / or specifications. Quantities are understood to be only approximate. Final payment will be based on actual quantities and at the unit price bid. The City reserves the right to add or to eliminate portions of that work as deemed necessary. 4. Plans may be examined and copies obtained at the Public Works Department Office. Bidders shall satisfy themselves as to the local conditions by inspection of the site. 5. The bid price for any item must include the performance of all work necessary for completion of that item as described in the specifications. 6. The bid price shall be stated in terms of the units indicated and as to a total amount. In the event of errors, the unit price bid will govern. Illegible figures will invalidate the bid. 7. The right is reserved to reject any and/or all bids and to waive informalities if it is deemed advantageous to the City to do so. 8. A certified check or satisfactory bid bond made payable without reservation to the Director of Finance of the City of Renton in an amount not less than 5% of the total amount of the bid shall accompany each bid proposal. Checks will be returned to unsuccessful bidders immediately following the decision as to award of contract. The check of the successful bidder will be returned provided he enters into a contract and furnishes a satisfactory performance bond covering the full amount of the work within ten Public Works Department 5. Instructions to Bidders 2 days after receipt of notice of intention to award contract. Should he fail, or refuse to do so, the check shall be forfeited to the City of Renton as liquidated damage for such failure. 9. All bids must be self-explanatory. No opportunity will be offered for oral explanation except as the City may request further information on particular points. 10. The bidder shall, upon request, furnish information to the City as to his financial and practical ability to satisfactorily perform the work. 11. Payment for this work will be made in Cash Warrants. 12. The contractor shall obtain such construction insurance (e.g. fire and extended coverage, worker's compensation, public liability, and property damage as identified within Special Provisions, Specification Section 1-07.18 “Public Liability and Property Damage Insurance”. 13. The contractor, prior to the start of construction, shall provide the City of Renton a detailed bar chart type construction schedule for the project. 14 Before starting work under this contract, the Contractor is required to supply information to the City of Renton on all chemical hazards Contractor is bringing into the work place and potentially exposing City of Renton Employees. 15. Payment of retainage shall be done in accordance with Section 1-09.9(1) "Retainage”. 16. Basis For Approval The construction contract will be awarded by the City of Renton to the lowest, responsible, responsive bidder. The bidder shall bid on all bid schedules items of all schedules set forth in the bid forms to be considered responsive for award. The total price of all schedules will be used to determine the successful low responsive bidder. Partial bids will not be accepted. The owner reserves the right to award any or all schedules of the Bid to meet the needs of the City. The intent is to award to only one BIDDER. 17. Trench Excavation Safety Systems As required by RCW 39.04.180, on public works projects in which trench excavation will exceed a depth of four feet, any contract therefore shall require adequate safety systems for the trench excavation that meet the requirements of the Washington Industrial Safety and Health Act, Chapter 49.17 RCW. These requirements shall be included in the Bid Schedule as a separate item. The costs of trench safety systems shall not be considered as incidental to any other contract item and any attempt to include the trench safety systems as an incidental cost is prohibited. 18. Payment of Prevailing Wages Public Works Department 5. Instructions to Bidders 3 In accordance with Revised Code of Washington Chapters 39.12 and 49.28 as amended or supplemented herein, there shall be paid to all laborers, workmen or mechanics employed on this contract the prevailing rate of wage for an hour's work in the same trade or occupation in the area of work regardless of any contractual relationship which may exist, or be alleged to exist, between the CONTRACTOR and any laborers, workmen, mechanics or subconsultants. The most recent issues of the prevailing wage rates are included within these specifications under section titled “Prevailing Minimum Hourly Wage Rates”. The Contractor is Responsible for obtaining updated issues of the prevailing wage rate forms as they become available during the duration of the contract. The wage rates shall be included as part of any subcontracts the Contractor may enter into for work on this project. 19. Apprentice Utilization Requirements This Contract includes an Apprentice Utilization Requirement. Fifteen percent (15%) or more of project Labor Hours shall be performed by Apprentices unless Good Faith Efforts are accepted. Apprentice Utilization will be determined using the Department of Labor and Industries (L&I) online Prevailing Wage Intent & Affidavit (PWIA) system. 20. Pollution Control Requirements Work under this contract shall meet all local, state and federal requirements for the prevention of environmental pollution and the preservation of public natural resources. The CONTRACTOR shall conduct the work in accordance with all applicable pollution control laws. The CONTRACTOR shall comply with and be liable for all penalties, damages, and violations under Chapter 90.48 RCW, in performance of the work. The CONTRACTOR shall also comply with Article 4 in the Puget Sound Air Pollution Control Agency Regulation III regarding removal and encapsulation of asbestos materials. 21. Standard Specifications All work under this contract shall be performed in accordance with the following standard specifications except as may be exempted or modified by the City of Renton Supplemental Specifications, Special Provisions other sections of these contract documents. These standard specifications are hereby made a part of this contract and shall control and guide all activities within this project whether referred to directly, paragraph by paragraph, or not. 1. WSDOT/APWA "2025 Standard Specifications for Road, Bridge and Municipal Construction" and "Division 1 APWA Supplement" hereinafter referred to by the abbreviated title "Standard Specifications." A. Any reference to "State," "State of Washington," "Department of Transportation," "WSDOT," or any combination thereof in the WSDOT/APWA standards shall be modified to read "City of Renton," unless specifically referring to a standard specification or test method. B. All references to measurement and payment in the WSDOT/APWA standards shall be detected and the measurement and payment provisions of Section 1-09.14, Measurement and Payment (added herein) shall govern. Public Works Department 5. Instructions to Bidders 4 22. If a soils investigation has been completed, a copy may be included as an appendix to this document. If one has not been provided for this project by the City or Engineer, the Bidders shall familiarize themselves adequately with the project site and existing subsurface condition as needed to submit their bid. Upon approval of the City, the Bidder may make such subsurface explorations and investigations as they see fit. The Bidder shall be responsible for protection of all existing facilities, utilities and other buried or surface improvements and shall restore the site to the satisfaction of the City. 23. It is anticipated that this project will be funded in part by the Washington State Department of Ecology. Neither the State of Washington nor any of its departments or employees are, or shall be, a party to this contract or any subcontract. 24. Drinking water and sanitary sewer work in Schedules B and C are funded by Soos Creek Water and Sewer District. Final acceptance of the work in these schedules by the City requires passing an inspection and acceptance by Soos Creek Water and Sewer District. 25. Bidder’s Checklist It is the responsibility of each bidder to ascertain if all the documents listed on the attached index are included in their copy of the bid specifications. If documents are missing, it is the sole responsibility of the bidder to contact the City of Renton to obtain the missing documents prior to bid opening time. Have you submitted, as part of your bid, all documents marked in the index as “Submit With Bid”? Has bid bond or certified check been enclosed? Is the amount of the bid guaranty at least 5 percent of the total amount of bid including sales tax? Has the proposal been signed? Have you bid on ALL ITEMS and ALL SCHEDULES? Have you submitted Minority Business/Woman Business Enterprise Subcontractors List (if required) Have you submitted the Subcontractors List (if required) Have you reviewed the Prevailing Wage Requirements? Have you reviewed the Apprentice Utilization Requirements? Have you certified Receipt of Addenda, if any? Have you submitted Department of Labor and Industries Certificate of Registration Form? CAG-25-047 6. Call for Bids 1 CITY OF RENTON CALL FOR BIDS SE 172nd Street Green Stormwater Infrastructure Project SWP-27-4037 Submittal Deadline: 2:00PM, March 25th, 2025 Bid Submission Process: Sealed bids will be received until 2:00 p.m., Tuesday, March 25, 2025, at the lobby of Renton City Hall, 1055 South Grady Way, Renton WA 98057. No mailed, Fedex, or UPS delivered will be accepted. Sealed bids will be opened and publicly read via the Zoom video-conferencing web application at 3:00 p.m., Tuesday, March 25, 2025 (60 minutes after published bid submittal time). Any bids received after the published bid submittal time cannot be considered and will not be accepted. • Please include bidder’s name, address and the name of the project on the envelope. • The bid opening meeting can be accessed via videoconference by: • Clicking this link to join the Zoom meeting: https://us02web.zoom.us/j/83155426168?pwd=b3fpdbUbv1Z30bvi4hCSDZa7yAVJWt.1 • Using the Zoom app: Meeting ID: 831 5542 6168; Password: 479974 • Via telephone by dialing: 1-253-205-0468,,83155426168#,,,,*479974# US • Zoom is free to use and is available at https://zoom.us/. The work to be performed within 125 working days from the date of commencement under this contract shall include, but not be limited to: • Construction surveying, staking, and production of as-built plans, • Create a SPCC plan • Mobilization and demobilization • Traffic control, • Installing and maintaining adequate Temporary Erosion and Sediment Control measures, • Protecting of existing utilities, utility potholing and resolution of utility conflicts, • Protection, removal, and/or relocation of existing site features such as mailboxes, fences, pipes, trees, etc., • Sawcut, removal, and replacement of asphalt concrete pavement and cement concrete sidewalks, • Trench excavation, including dewatering, shoring, removal of any existing unsuitable material, disposal of excavated material, and treatment and/or removal of any contaminated soil and/or water, • Installing new storm system of approximately 4,459 linear feet of 4-inch, 8-inch, 12-inch and 18-inch diameter storm sewer pipe, including 55 catch basins and 1 custom rectangular structure, CAG-25-047 6. Call for Bids 2 • CCTV inspect all installed storm sewer pipe. • Installing approximately 920 lineal feet of new 8-in ductile iron watermain with appurtenances, • Installing of approximately 359 linear feet of water main, 8-inch ductile iron pipe with polywrap, including gate valves, fire hydrant assemblies, thrust blocking and dead man anchor blocks, • Installation of approximately 5-1” water service connections and transfer of domestic services, • Connection of new water system to existing water system, • Installing approximately 160 linear feet of 12-inch sewer lateral • Installing of approximately 40 linear feet of sewer force main, 12-inch ductile iron pipe including fittings and thrust blocking, • Connection for new sewer lateral and sewer force main to existing systems, • Temporary sewer bypass • Installation of new 14 BioPod water quality units, including all necessary installation methods provided by the manufacture, • Trench backfill with suitable material and compaction to required standards, • Installing hot mix asphalt patch for utility trenches, • Installing concrete curbs and gutters, driveway entrances and curb ramps, • Installing pervious concrete sidewalks, • Installing roadway planter strips with seeded lawn, and irrigation system, • Installing hot mix asphalt roadway pavement, overlay, and speed cushion, • Adjusting utility to grade, • Installing permanent signing and striping, • Performing landscape and property restoration. The estimated project cost is $4,000,000 to $4,500,000 It is anticipated that this project will be funded in part by the Washington State Department of Ecology. Neither the State of Washington nor any of its departments or employees are, or shall be, a party to any contract or any subcontract resulting from this solicitation for bids. The City reserves the right to reject any and/or all bids and to waive any and/or all informalities. Bid documents will be available Monday, March 3, 2025. Plans, specifications, addenda, and the plan holders list for this project are available on-line through Builders Exchange of Washington, Inc., at http://www.bxwa.com. Click on “bxwa.com”; “Posted Projects”, “Public Works”, “City of Renton”, “Projects Bidding”. (Note: Bidders are encouraged to “Register as a Bidder,” in order to receive automatic email notification of future addenda and to be placed on the “Bidders List.”) Bid documents will also be available at http://rentonwa.gov/bids/ under “Calls for Bids”. Should you require further assistance, contact Builder Exchange of Washington at (425) 258- 1303. Bidders are not to contact the City of Renton or the Engineer to obtain bidding documents. CAG-25-047 6.Call for Bids 3 This project is subject to RCW 39.04.320 and requires 15% of all labor hours to be performed by apprentices registered in a State Approved Apprenticeship Program. An Apprentice Utilization Plan is required to be submitted. Good Faith Efforts may be considered, and a reduction or waiver may be granted. An incentive will be paid to those that meet the requirement. A penalty will be assessed if the required Apprentice Utilization Plan is not obtained, and no Good Faith Effort has been approved. See Bidding Documents and Contract Documents for additional information including incentive and penalty amounts. Bidders may contact the Department of Labor & Industries, Apprenticeship Section, to obtain information on available apprenticeship programs. The City's Fair Practices, Non-Discrimination, and Americans with Disability Act Policies shall apply. Women and Minority Business Enterprises (WMBE) are encouraged to bid. Questions about the project shall be addressed to: Kevin Evans, Public Works Department, 1055 South Grady Way, Fifth Floor, Renton, WA, 98057, or 425-430-7264, or krevans@rentonwa.gov. Questions received less than 4 business days prior to the date of sealed bid submittal may not be answered. The City will not be responsible for other explanations or interpretations of the bid documents. A certified check or bid bond in the amount of five percent (5%) of the total of each bid must accompany each bid. Jason A. Seth. MMC, City Clerk Published: Daily Journal of Commerce Monday, March 3, 2025 Daily Journal of Commerce Monday, March 10, 2025 Daily Journal of Commerce Monday, March 17, 2025 CITY OF RENTON SE 172nd Street Green Stormwater Infrastructure Project SWP-27-4037 Proposal & Combined Affidavit & Certificate Form TO THE CITY OF RENTON RENTON, WASHINGTON Ladies and/or Gentlemen: The undersigned hereby certify that the bidder has examined the site of the proposed work and have read and thoroughly understand the plans, specifications and contract governing the work embraced in this improvement,and the method by which payment will be made for said work,and hereby propose to undertake and complete the work embraced in this improvement, or as much thereof as can be completed with the money available, in accordance with the said plans, specifications and contract and the following schedule of rates and prices: Note: Unit prices for all items, all extensions, and total amount of bid should be shown. Show unit prices both in writing and in figures.) The undersigned further certifies and agrees to the following provisions: NON-COLLUSION AFFIDAVIT Being duly sworn, deposes and says, that he is the identical person who submitted the foregoing proposal or bid, and that such bid is genuine and not sham or collusive or made in the interest or on behalf of any person not therein named, and further, that the deponent has not directly induced or solicited any other Bidder on the foregoing work or equipment to put in a sham bid, or any other person or corporation to refrain from bidding, and that deponent has not in any manner sought by collusion to secure to himself or to any other person any advantage over other Bidder or Bidders. AND CERTIFICATION RE: ASSIGNMENT OF ANTI-TRUST CLAIMS TO PURCHASER Vendor and purchaser recognize that in actual economic practice overcharges resulting from anti-trust violations are in fact usually borne by the purchaser. Therefore, vendor hereby assigns to purchaser any and all claims for such over-charges as to goods and materials purchased in connection with this order or contract, except as to overcharges resulting from anti-trust violations commencing after the date of the bid, quotation, or other event establishing the price under this order or contract. In addition,vendor warrants and represents that such of his suppliers and subcontractors shall assign any and all such claims to purchaser, subject to the aforementioned exception. AND MINIMUM WAGE AFFIDAVIT FORM I,the undersigned, having been duly sworn, deposed,say and certify that in connection with the performance of the work of this project, I will pay each classification of laborer, workman, or mechanic employed in the 7. Proposal &Combined Affidavit&Certificate Form 1 performance of such work; not less than the prevailing rate of wage or not less than the minimum rate of wages as specified in the principal contract. I have read the above and foregoing statements and certificate, know the contents thereof and the substance as set forth therein is true to my knowledge and belief. FOR: PROPOSAL, NON COLLUSION AFFIDAVIT, ASSIGNMENT OF ANTI-TRUST CLAIMS TO PURCHASER AND MINIMUM WAGE AFFIDAVIT OMA Construction, Inc. Name of Bidder's Firm Printed Name:Brandon Akers Signatur • Address: 22412 SE 231st St; Maple Valley, A 8 Contact Name (please print):Brandon Akers Phone:206-262-1721 Email: 206-262-9107 11111 i/1 O s- Names of Members of Partnership: Z. '" c N/A J0 Name of President of Corporation Barry O'Young Name of Secretary of Corporation Brandon Akers Corporation Organized under the laws of Washington With Main Office in State of Washington at 22412 SE 231 st St; Mapl Valley, WA 98038 Subscribed and sworn to before me on this 25th , day of 2025 EN'E.......Notary Public i n rthe S e of Washington`,`` V' PcS51°"42AO'Qv Notary (Print) Charlene Hartje 0 NOTA,gy icf 07/22/2028Myappointmentexpires: N' PG C u.I It' 7. Proposal &Combined Affidavit&Certificate Form 2 S Y O.c Proposal Bid Bond 7 N T%-, KNOW ALL MEN BY THESE PRESENTS,That we, [Contractor] OMA Construction, Inc. of[address] P.O. Box 429, Maple Valley, WA 98038 as Principal, and [Surety] Nationwide Mutual Insurance Company a corporation duly organized under the laws of the State of Ohio and authorized to do business in the State of Washington, as Surety, are held and firmly bound unto the City of Renton in the sum of five (5) percent of the total amount of the bid proposal of said Principal for the work hereinafter described, for the payment of which, well and truly to be made, we bind ourselves, our heirs, executors, administrators and assigns,and successors and assigns,jointly and severally,firmly by these presents. The condition of this bond is such, that whereas the Principal herein is herewith submitting his/her or its sealed proposal for the following project,to wit: SE 172nd Street Green Stormwater Infrastructure (GSI) Project, SWP-27-4037 said bid and proposal, by reference thereto, being made a part hereof. NOW, THEREFORE, if the said proposal bid by said Principal be accepted, and the contract be awarded to said Principal, and if said Principal shall duly make and enter into and execute said contract and shall furnish performance bond as required by the City of Renton within a period of ten (10) days from and after said award, exclusive of the day of such award,then this obligation shall be null and void,otherwise it shall remain and be in full force and effect. IN THE EVENT the Principal, following award, fails to execute an Agreement with the City of Renton in accordance with the terms of the Proposal and furnish a performance bond with Surety or Sureties approved by the City of Renton within ten (10) days from and after said award, then Principal shall forfeit the Bid Bond/Bid Proposal Deposit or Surety shall immediately pay and forfeit to the City of Renton the amount of the Proposal Bid Bond, as set forth in RCW 35A.40.200 and RCW 35.23.352. IN TESTIMONY WHEREOF, the Principal and Surety have caused these presents to be signed and sealed this 25th day of March 2025 . OMA Construction, Inc. Nationwide Mutual Insurance Company I] Surety] d Signature of authorized official] Signature of authorized official] u°447,„ VV . ! )1 1c By: Charla M Boadle j SEAL:; Title] Attorney-in-Fact] ov Propel Insurance Address] 601 Union St. Suite 3400 Seattle, WA 98101 206) 676-4200 Telephone Number] Approved by the City Attorney on 6/03/13 8. Proposal Bid Bond Form Power of Attorney KNOW ALL MEN BY THESE PRESENTS THAT: Nationwide Mutual Insurance Company,an Ohio corporation hereinafter referred to severally as the"Company"and collectively as"the Companies"does hereby make,constitute and appoint: ALEXA MANLEY;ALICEON A KELTNER;ALYSSA J LOPEZ;AMELIA G BURRILL;ANNELIES M RICHIE;CARLEY ESPIRITU;CHARLA M BOADLE; CHRISTOPHER KINYON;CYNTHIA L JAY;DONALD PERCELL SHANKLIN;FRANK W HAFNER,III;HOLLI ALBERS;JACOB T HADDOCK;JAMES R COGDILL; JAMIE L MARQUES;JULIANNE MORRIS;JULIE A CRAKER;JUSTIN DEAN PRICE;KARI MICHELLE MOTLEY;KATHARINE J SNIDER; LINDSEY ELAINE JORGENSEN;LOIS F WEATHERS;LORI J KELLY;MARIAN C NEWMAN;MICHAEL S MANSFIELD;SARAH WHITAKER;SHERRI W HILL; TAMARA A RINGEISEN;TERRIE L CONARD;TRAVIS J ROBLES;W D MORRIS JR;WESLEY V DASHER,JR; each in their individual capacity,its true and lawful attorney-in-fact,with full power and authority to sign,seal,and execute on its behalf any and all bonds and undertakings,and other obligatory instruments of similar nature,in penalties not exceeding the sum of UNLIMITED and to bind the Company thereby,as fully and to the same extent as if such instruments were signed by the duly authorized officers of the Company;and all acts of said Attorney pursuant to the authority given are hereby ratified and confirmed. This power of attorney is made and executed pursuant to and by authority of the following resolution duly adopted by the board of directors of the Company: RESOLVED,that the president,or any vice president be,and each hereby is,authorized and empowered to appoint attorneys-in-fact of the Company, and to authorize them to execute and deliver on behalf of the Company any and all bonds,forms,applications,memorandums, undertakings, recognizances,transfers,contracts of indemnity, policies,contracts guaranteeing the fidelity of persons holding positions of public or private trust,and other writings obligatory in nature that the business of the Company may require;and to modify or revoke,with or without cause,any such appointment or authority;provided,however,that the authority granted hereby shall in no way limit the authority of other duly authorized agents to sign and countersign any of said documents on behalf of the Company." RESOLVED FURTHER,that such attorneys-in-fact shall have full power and authority to execute and deliver any and all such documents and to bind the Company subject to the terms and limitations of the power of attorney issued to them,and to affix the seal of the Company thereto; provided,however,that said seal shall not be necessary for the validity of any such documents." This power of attorney is signed and sealed under and by the following bylaws duly adopted by the board of directors of the Company. Execution of Instruments.Any vice president,any assistant secretary or any assistant treasurer shall have the power and authority to sign or attest all approved documents,instruments,contracts,or other papers in connection with the operation of the business of the company in addition to the chairman of the board,the chief executive officer,president,treasurer or secretary;provided,however,the signature of any of them may be printed,engraved,or stamped on any approved document,contract,instrument,or other papers of the Company. IN WITNESS WHEREOF,the Company has caused this instrument to be sealed and duly attested by the signature of its officer the 1st day of April,2024. Aleak Antonio C.Albanese,Vice President of Nationwide Mutual Insurance Company ACKNOWLEDGMENT 41u t!w , STATE OF NEW YORK COUNTY OF KINGS:ss On this 1st day of April,2024,before me came the above-named officer for the Company aforesaid,to me personally known to be the officer described in and who executed the SEAL., preceding instrument,and he acknowledged the execution of the same,and being by me duly sworn,deposes and says,that he is the officer of the Company aforesaid,that the seal affixed WiniiisiX,4 hereto is the corporate seal of said Company,and the said corporate seal and his signature W_were duly affixed and subscribed to said instrument by the authority and direction of said Company. Sharon Laburda Notary Public,State of New York No.01LA6427697 Qualified in Kings County Notary Public Commission Expires January 3,2026 My Commission Expires CERTIFICATE January 3,2026 I,Lezlie F.Chimienti,Assistant Secretary of the Company,do hereby certify that the foregoing is a full,true and correct copy of the original power of attorney issued by the Company;that the resolution included therein is a true and correct transcript from the minutes of the meetings of the boards of directors and the same has not been revoked or amended in any manner;that said Antonio C.Albanese was on the date of the execution of the foregoing power of attorney the duly elected officer of the Company,and the corporate seal and his signature as officer were duly affixed and subscribed to the said instrument by the authority of said board of directors;and the foregoing power of attorney is still in full force and effect. IN WITNESS WHEREO I have hereunto subscribed my name as Assistant Secretary,and affixed the corporate seal of said Company this ay25th ofday March , 22025 . Assistant Secretary BDJ 1(04-24)00 CO.Y O, FNTOd Public Works Department SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE PROJECT SWP-27-4037 Department of Labor and Industries Certificate of Registration Name on Registration: OMA Construction, Inc. Registration Number: 97844601 Expiration Date:06/30/2026 Note: A copy of the certificate will be requested as part of contract execution when project is awarded. 9. Department of Labor and Industries Certificate of Registration CITY OF RENTON PUBLIC WORKS DEPARTMENT SE 172nd St Green Stormwater Infrastructure Project SWP-27-4037 SCHEDULE OF PRICES Note:Show price per unit in figures only.Figures written to the right of the dot(decimal)in price per unit column shall be interpreted as cents. SEE SECTION 1-09.14 OF THE SPECIAL PROVISIONS FOR MEASUREMENT AN PAYMENT INFORMATION ON BID ITEMS ITEM SPEC. PAYMENT ITEM WITH UNIT PRICED BID APPROX.TOTAL NO. SECTION SECTION QUANTITY UNIT UNIT PRICE AMOUNT BID SCHEDULE A-ROADWAY AND STORM DRAINAGE IMPROVEMENTS Al 1-04 1-09 MINOR CHANGES 1 EST 5 150,000 S 150,000 CONSTRUCTION SURVEYING,STAKING AND AS- A2 1-05 1-09 BUILT DRAWINGS 1 LS $ 2,000.00 $ 2,000.00 A3 1-07 1-09 RESOLUTION OF UTILITY CONFLICTS 1 EST $ 20,000 $ 20,000 A4 1-07 1-09 SITE SPECIFIC POTHOLING 8 EA 5 1,000.00 $ 8,000.00 A5 1-07 1-09 SPCC PLAN AND IMPLEMENTATION 1 LS $ 500.00 $ 500.00 MOBILIZATION AND DEMOBILIZATION(MAX. A6 1-09 1-09 BID 10%OF BID TOTAL) 1 LS $ 325,000.00 $ 325,000.00 A7 1-09 1-09 SHORING OR EXTRA EXCAVATION CLASS B 29,300 SF $ 1.00 $ 29,300.00 A8 1-09 1-09 APPRENTICESHIP INCENTIVE 1 EST $ 2,000 $ 2,000 A9 1-09 1-09 APPRENTICESHIP PENALTY 1 EST $ 0 0 A10 1-10 1-09 PROJECT TEMPORARY TRAFFIC CONTROL 1 LS $ 175,000.00 $ 175,000.00 All 2-01 1-09 CLEARING AND GRUBBING 1 LS $ 68,000.00 $ 68,000.00 REMOVAL OF STRUCTURES AND Al2 2-02 1-09 OBSTRUCTIONS 1 LS $ 15,000.00 $ 15,000.00 A13 2-02 1-09 SAWCUTTING 9,670 LF $ 7.00 $ 67,690.00 REMOVAL AND REPLACEMENT OF UNSUITABLE 100.00 7,500.00 A14 2-09 1-09 MATERIAL 75 CY $ A15 4-04 1-09 CRUSHED SURFACING TOP COURSE 1,260 TN $ 75.00 $ 94,500.00 A16 5-04 1-09 HMA CL 1/2 IN PG 58H-22 1,190 TN $ 150.00 $ 178,500.00 A17 5-04 1-09 PLANING BITUMINOUS PAVEMENT 4,360 SY $ 2.00 $ 8,720.00 A18 5-04 1-09 THICKENED EDGE 2,270 LF $ 28.00 $ 63,560.00 A19 5-04 1-09 SPEED CUSHION 6 EA $ 2,200.00 $ 13,200.00 A20 5-07 1-09 PERVIOUS CEMENT CONC.SIDEWALK 970 SY $ 195.00 $ 189,150.00 CORRUGATED POLYETHYLENE STORM SEWER 100.00 700.00 A21 7-04 1-09 PIPE 4 IN.DIAM. 7 LF $ 10.Schedule of Prices 1 Provided to Builders Exchange of WA, Inc. For usage Conditions Agreement see www.bxwa.com - Always Verify Scal CITY OF RENTON PUBLIC WORKS DEPARTMENT SE 172"4 St Green Stormwater Infrastructure Project SWP-27-4037 SCHEDULE OF PRICES Note:Show price per unit in figures only.Figures written to the right of the dot(decimal)in price per unit column shall be interpreted as cents. SEE SECTION 1-09.14 OF THE SPECIAL PROVISIONS FOR MEASUREMENT AN PAYMENT INFORMATION ON BID ITEMS ITEM SPEC. PAYMENT ITEM WITH UNIT PRICED BID APPROX.TOTAL UNIT UNIT PRICE NO. SECTION SECTION QUANTITY AMOUNT CORRUGATED POLYETHYLENE STORM SEWER A22 7-04 1-09 PIPE SIN.DIAM. 17 LF $ 110.00 $ 1,870.00 POLYETHYLENE POLYPROPYLENE STORM SEWER 105.00 66.570.00 A23 7-04 1-09 PIPE 12 IN.DIAM. 634 LF $ POLYETHYLENE POLYPROPYLENE STORM SEWER 90.00 332,550.00 A24 7-04 1-09 PIPE 18 IN. DIAM. 3,695 LF $ 250.00 38.000.00 A25 7-04 1-09 D.I.STORM SEWER PIPE 12 IN. DIAM.152 LF $ 100.00 2,200.00 A26 7-04 1-09 D.I.STORM SEWER PIPE 18 IN. DIAM. 22 LF $ 5 100.00 400.00 A27 7-04 1-09 D.I.STORM SEWER PIPE 24 IN. DIAM. 4 LF 5 5 25.00 135.500.00 A28 7-04 1-09 SELECT BORROW FOR TRENCH BACKFILL 5,420 TN $ A29 7-04 1-09 CCTV INSPECTION 4,527 LF $ 4-00 $ 18,108.00 A30 7-05 1-09 CONCRETE INLET 1 EA 1.250.00 $ 1,250.00 A31 7-05 1-09 CATCH BASIN TYPE 1 19 EA $ 5,000.00 $ 95,000.00 A32 7-05 1-09 CATCH BASIN TYPE 1L 9 EA 5 8,500.00 5 76,500.00 A33 7-05 1-09 CATCH BASIN TYPE 2-48 IN. DIAM. 28 EA $ 7,500.00 s 210,000.00 A34 7-05 1-09 1201N X 721N RECTANGULAR STRUCTURE 1 EA S 50,000.00 S 50,000.00 A35 7-05 1-09 BIOPOD(4 X 6 UNIT) 12 EA $ 40,000.00 $ 480,000 00 A36 7-05 1-09 BIOPOD(4 X 12 UNIT) 2 EA $ 75,000.00 $ 15.0,000.00 A37 7-09 1-09 DEWATERING 1 LS $ 1,000 00 $ 1,000 00 A38 8-01 1-09 SWPPP AND TESC PLAN AND IMPLEMENTATION 1 LS $ i,500.00 $ ,5.00.00 A39 8-02 1-09 ROADSIDE RESTORATION 1 LS $ 50,000.00 $ 50,000.00 A40 8-04 1-09 CEMENT CONC.TRAFFIC CURB AND GUTTER 2,600 LF $35.00 $ 91,000.00 A41 8-04 1-09 CEMENT CONC.TRAFFIC CURB 35 LF $35.00 $ 1,225.00 A42 8-04 1-09 MOUNTABLE CEMENT CONC.TRAFFIC CURB 40 LF $35.00 5 1,400 00 A43 8-22 1-09 PAINT LINE 2,550 LF $ 5 00 $ 12,750 00 10.Schedule of Prices 2 Provided to Builders Exchange of WA, Inc. For usage Conditions Agreement see www.bxwa.com - Always Verify Scal CITY OF RENTON PUBLIC WORKS DEPARTMENT SE 172nd St Green Stormwater Infrastructure Project SWP-27-4037 SCHEDULE OF PRICES Note:Show price per unit in figures only.Figures written to the right of the dot(decimal)in price per unit column shall be interpreted as cents. SEE SECTION 1-09.14 OF THE SPECIAL PROVISIONS FOR MEASUREMENT AN PAYMENT INFORMATION ON BID ITEMS ITEM SPEC. PAYMENT ITEM WITH UNIT PRICED BID APPROX.TOTAL NO. SECTION SECTION QUANTITY UNIT UNIT PRICE AMOUNT Total Schedule A(Roadway and Stormwater Improvements)* 3,241,143.00 All applicable sales tax for this schedule shall be included in the unit and lump sum Bid prices per Section 1-07.2(1)and WAC 458-20-171 10.Schedule of Prices 3 Provided to Builders Exchange of WA, Inc. For usage Conditions Agreement see www.bxwa.com - Always Verify Scal CITY OF RENTON PUBLIC WORKS DEPARTMENT SE 172nd St Green Stormwater Infrastructure Project SWP-27-4037 SCHEDULE OF PRICES Note:Show price per unit in figures only.Figures written to the right of the dot(decimal)in price per unit column shall be interpreted as cents. SEE SECTION 1-09.14 OF THE SPECIAL PROVISIONS FOR MEASUREMENT AN PAYMENT INFORMATION ON BID ITEMS ITEM SPEC. PAYMENT ITEM WITH UNIT PRICED BID APPROX.TOTAL UNIT UNIT PRICE NO. SECTION SECTION QUANTITY AMOUNT BID SCHEDULE B—WATER RELOCATIONS B1 1-04 1-09 MINOR CHANGES 1 EST S 15,000 5 15,000 CONSTRUCTION SURVEYING,STAKING AND AS- B2 1-05 1-09 BUILT DRAWINGS 1 LS $ 500.00 $ 500.00 B3 1-07 1-09 SITE SPECIFIC POTHOLING 6 EA $ 500.00 $ 3,000.00 B4 1-09 1-09 SHORING OR EXTRA EXCAVATION CLASS B 1,800 SF $ 1.00 $ 1,800.00 B5 2-09 1-09 STRUCTURE EXCAVATION CLASS B INCL.HAUL 300 CY $ 55.00 $ 16,500.00 B6 4-04 1-09 CRUSHED SURFACING TOP COURSE 550 TN $ 50.00 $ 27,500.00 B7 5-04 1-09 HMA CL 1/2 IN PG 58H-22 40 TN $ 250.00 $ 10.000.00 B8 7-09 1-09 DEWATERING 1 LS 1,000.00 $ 1,000.00 8-INCH DUCTILE IRON WATER MAIN 85.00 $ 30,515.00 69 7-09 1-09 359 LF DUCTILE IRON FITTINGS(INCLUDING 4.00 $ 14,400.00 B10 7-09 1-09 RESTRAINTS) 3,600 LBS 7,500.00 $ 22,500.00 B11 7-09 1-09 1-INCH WATER SERVICE,(NEAR SIDE) 3 EA 8,500.00 $ 17,000.00 B12 7-09 1-09 1-INCH WATER SERVICE,(FAR SIDE) 2 EA FIRE HYDRANT ASSEMBLY 15,000.00 $ 30,000.00 B13 7-09 1-09 2 EA CONNECTION TO EXISTING WATER SYSTEM 2,500.00 $ 45,000.00 B14 7-09 1-09 18 EA B15 7-09 1-09 REMOVAL OF PIPE 270 LF $ 5.00 $ 1,350.00 Subtotal Schedule B(Water Relocations)* 236,065.00 10.3%Sales Tax*24,314.70 Total Schedule B(Water Relocations)* 260,379.70 All applicable sales tax for this schedule shall NOT be included in the unit or lump sum Bid prices,and should instead be added onto the full contract price per Section 1-07.2(2)and WAC 458-20-171 10.Schedule of Prices 4 Provided to Builders Exchange of WA, Inc. For usage Conditions Agreement see www.bxwa.com - Always Verify Scal CITY OF RENTON PUBLIC WORKS DEPARTMENT SE 172^d St Green Stormwater Infrastructure Project SWP-27-4037 SCHEDULE OF PRICES Note:Show price per unit in figures only.Figures written to the right of the dot(decimal)in price per unit column shall be interpreted as cents. SEE SECTION 1-09.14 OF THE SPECIAL PROVISIONS FOR MEASUREMENT AN PAYMENT INFORMATION ON BID ITEMS ITEM SPEC. PAYMENT ITEM WITH UNIT PRICED BID APPROX.TOTAL UNIT UNIT PRICE NO. SECTION SECTION QUANTITY AMOUNT BID SCHEDULE C—SEWER RELOCATIONS Cl 1-04 1-09 MINOR CHANGES 1 EST S 10,000 S 10,000 CONSTRUCTION SURVEYING,STAKING AND AS- C2 1,000.00 $ 1,000.00 C2 1-05 1-09 BUILT DRAWINGS 1 LS C3 1-07 1-09 SITE SPECIFIC POTHOLING 9 EA $ 500.00 $ 4,500.00 C4 1-09 1-09 SHORING OR EXTRA EXCAVATION CLASS B 2,700 SF $1.00 $ 2,700.00 C5 2-09 1-09 STRUCTURE EXCAVATION CLASS B INCL.HAUL 150 CY $ 100.00 $ 15,000.00 C6 4-04 1-09 CRUSHED SURFACING TOP COURSE 350 TN $ 75.00 $ 26.250.00 C7 5-04 1-09 HMA CL 1/2 IN PG 58H-22 30 TN $ 250.00 $ 7,500.00 C8 1 7-04 1-09 12-INCH DUCTILE IRON PIPE 40 LF $ 120.00 $ 4,800.00 DUCTILE IRON FITTINGS(INCLUDING 4.00 $ 1.440.00 C9 7-04 1-09 RESTRAINTS)360 LBS S 1,000.00 S 1,000.00 C10 7-09 1-09 DEWATERING 1 LS C11 7-17 1-09 CONNECTION TO EXISTING SEWER FORCE MAIN 2 EA $ 7,500.00 $ 15,000.00 C12 7-18 1-09 6-INCH PVC SDR 35 160 LF $ 100.00 $ 16,000.00 C13 7-18 1-09 CONNECTION TO EXISTING SEWER MAIN 7 EA $ 1,500.00 $ 10,500.00 C14 , 7-18 1-09 REMOVAL OF PIPE 200 LF 5.00 $ 1,000.00 Subtotal Schedule C(Sewer Relocations)* 116,690.00 10.3%Sales Tax*12,019.07 Total Schedule C(Sewer Relocations)* 128.709.07 AII applicable sales tax for this schedule shall NOT be included in the unit or lump sum Bid prices,and should instead be added onto the full contract price per Section 1-07.2(2)and WAC 458-20-171 10.Schedule of Prices 5 Provided to Builders Exchange of WA, Inc. For usage Conditions Agreement see www.bxwa.com - Always Verify Scal CITY OF RENTON PUBLIC WORKS DEPARTMENT SE 172"d St Green Stormwater Infrastructure Project SWP-27-4037 SCHEDULE OF PRICES Note:Show price per unit in figures only.Figures written to the right of the dot(decimal)in price per unit column shall be interpreted as cents. SEE SECTION 1-09.14 OF THE SPECIAL PROVISIONS FOR MEASUREMENT AN PAYMENT INFORMATION ON BID ITEMS ITEM SPEC. PAYMENT ITEM WITH UNIT PRICED BID APPROX.TOTAL UNIT UNIT PRICE NO. SECTION SECTION QUANTITY AMOUNT BID SCHEDULE D—ROADWAY MISCELLANEOUS D1 2-01 1-09 TREE REMOVAL 1 EA 5 1.200.00 S 1.200.00 CONTAMINATED SOIL AND GROUNDWATER D2 2-05 1-09 HANDLING AND MANAGEMENT PLAN 1 LS $ 5.000.00 $ 5.000.00 CONTAMINATED SOIL EXCAVATION, HAUL,AND 625.00 $ 15.625.00 D3 2-05 1-09 DISPOSAL 25 TN S 20,000 S 20,000 D4 2-05 1-09 CONTAMINATED WATER TREATMENT 1 EST D5 7-12 1-09 ADJUST FRANCHISE UTILITY APPURTENANCES 10 EA $ 500.00 $ 5,000.00 D6 8-06 1-09 CEMENT CONC.DRIVEWAY ENTRANCE 930 SY $85.00 $ 79,050.00 D7 8-12 1-09 CHAIN LINK FENCE TYPE 4 134 LF $65.00 $ 8.710.00 D8 8-12 1-09 WOODEN FENCE 46 LF $55.00 $ 2.530.00 D9 8-14 1-09 CEMENT CONC.SIDEWALK 220 SY $85 00 $ 18.700.00 CEMENT CONC.CURB RAMP TYPE D10 8-14 1-09 PERPENDICULAR A 2 EA 1.250.00 2,500.00 CEMENT CONC.CURB RAMP TYPE SINGLE 3.500.00 $ 21.000.00 D11 8-14 1-09 DIRECTION 6 EA D12 8-18 1-09 RELOCATE MAILBOX 29 EA $ 150.00 $ 4,350.00 D13 8-21 1-09 PERMANENT SIGNING 1 LS 25.000.00 $ 25.000.00 Total Schedule D(Roadway Miscellaneous)* 208,665.00 All applicable sales tax for this schedule shall be included in the unit and lump sum Bid prices per Section 1-07.2(1)and WAC 458-20-171 10.Schedule of Prices 6 Provided to Builders Exchange of WA, Inc. For usage Conditions Agreement see www.bxwa.com - Always Verify Scal CITY OF RENTON PUBLIC WORKS DEPARTMENT SE 172nd St Green Stormwater Infrastructure Project SWP-27-4037 SCHEDULE OF PRICES Summary: Total Schedule A brought forward=$ $3,241,143.00 Total Schedule B brought forward=$ $260,379.70 Total Schedule C brought forward=$ $ 128,709.07 Total Schedule D brought forward=$ $208,665.00 Total Bid Amount,Schedules A,B,C,& D=$ $3,838,896.77 Note:Determination of low bidder will be based solely on the"Total Bid". 10.Schedule of Prices 7 Provided to Builders Exchange of WA, Inc. For usage Conditions Agreement see www.bxwa.com - Always Verify Scal Public Works Department SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE PROJECT SWP-27-4037 ACKNOWLEDGEMENT OF RECEIPT OF ADDENDA ACKNOWLEDGEMENT OF RECEIPT OF ADDENDA NO. 1 DATE: 03/10/2025 NO. 2 DATE:03/17/2025 NO. 3 DATE:03/20/2025 NO. DATE: NO. DATE: A Co r' %••c cam up, 4 TITLE: Vice President I I i i i t' NAME OF COMPANY: OMA Construction, Inc. ADDRESS: 22412 SE 231st St CITY/STATE/ZIP: Maple Valley, WA 98038 TELEPHONE: 206-262-1721 11. Acknowledgement of Receipt of Addenda Jl This form must be submitted with the Bid Proposal. Certification of Compliance with Wage Payment Statutes The bidder hereby certifies that, within the three-year period immediately preceding the bid solicitation date, the bidder is not a "willful" violator, as defined in RCW 49.48.082, of any provision of chapters 49.46, 49.48, or 49.52 RCW, as determined by a final and binding citation and notice of assessment issued by the Department of Labor and Industries or through a civil judgment entered by a court of limited or general jurisdiction. I certify under penalty of perjury under the laws of the State of Washington that the foregoing is true and correct. OMA Construction, Inc. Bidder's Business Name 111111111/ N`A Co''% OignatureofAuthorizedOfficial* Srr aj OC = Brandon Akers C7 Printed Name CrC CQ •0 Vice President Il. ^ -. `\``` Title 111 03/25/2025 Maple Valley WA Date City State Check One: Sole Proprietorship Partnership Joint Venture Corporation LLC State of Incorporation, or if not a corporation, State where business entity was formed: Washington If a co-partnership, give firm name under which business is transacted: N/A 1f a corporation,proposal must be executed in the corporate name by the president or vice-president(or any other corporate officer accompanied by evidence of authority to sign).If a co-partnership,proposal must be executed by a partner. Template updated 2-12-19 12. Certificate of Compliance with Wage Payment Statutes This form must be submitted with the Bid Proposal Acknowledgement of Apprentice Utilization Requirement Pursuant to RCW 39.04.320, all contracts with an estimated cost in excess of two million dollars require that no less than 15 percent of the labor hours performed by workers subject to prevailing wages employed by the Contractor and/or its subcontractors be performed by apprentices enrolled in an apprenticeship training program approved or recognized by the Washington State Apprenticeship and Training Council.This Project has an estimated construction cost of more than two million dollars. For this project, the Apprentice Utilization Requirement will be 15 percent. The Contractor will be required to provide an Apprenticeship Utilization Plan within 30 days after the contract is awarded. To ensure compliance with this requirement, the Contractor's prevailing wage documentation, including the hours of labor performed by apprentices, is required to be submitted through the Washington State Department of Labor and Industry's Prevailing Wage Intents and Affidavits portal throughout the life of the contract. Note: See Special Provisions 1-07.9(3)for more information. By signing below,the Bidder acknowledges the above apprentice utilization requirements. Date 03/25/2025 20 OMA Construction, Inc. Bidder's Business Name) 22412 SE 231st St; Maple Valley, WA 98038 Address) zz Brandon Akers Signature of Authorized Official) OMA C ', Printed Name) d Vice President 2 (pT o__ Title)Z i,iOU11``. SE 172ND ST AVENUE GREEN STORMWATER INFRASTRUCTURE SWP-27-4037 SUBCONTRACTOR LIST In accordance with RCW 39.30-060: For all public works contracts exceeding $1,000,000 the bidder shall submit the names of the subcontractors with whom the bidder, if awarded the contract, will subcontract for the following work: All heating,ventilation and air conditioning, and plumbing subcontractors as described in chapter 18.106 RCW, and electrical subcontractors as described in chapter 19.28 RCW (this also includes the control system integrator subcontractor as well as other electrical subcontractors) shall be submitted as part of the bid. All structural steel installation and rebar installation subcontractors shall be submitted as part of the bid. If the work does not apply to this contract, check the box "Not Applciable". If the work will be self performed by the bidder, check the box"Self Performed". If the subcontractors names are not submitted with the bid OR if two or more subcontractors are named to perform the same work,the bid shall be considered nonresponsive and,therefore, void. If subcontractors vary with bid alternates, please complete a separate form indicating which subcontractors will be used for which bid alternate. Complete the following: If awarded the contract,OMA Construction, Inc. will contract with the following subcontractors for the performance of heating,ventilation and air conditioning, plumbing, electrical including automatic controls)work, structural steel installation,and rebar installation (If no subcontractors will be required,still submit the form indicating"not applicable"for each discipline) : The following list of subcontracts is due with the bid. Category of Work Heating,Ventilation &Air Conditioning (HVAC) Not Applicable Subcontractors Name Self Performed Address Phone No. Contractor's License No. Category of Work Plumbing(per RCW 18.106) Not Applicable Ng Subcontractors Name Self Performed Address Phone No. Contractor's License No. Category of Work Electrical (per RCW 19.28) Not Applicable E./ Subcontractors Name Self Performed E Address Phone No. Contractor's License No. Revised 3/31/2021 clb Page 2 Category of Work Structural Steel and Rebar Installation Not Applicable Subcontractors Name N/A Self Performed W' Address 22412 SE 231st St; Maple Valley, WA 98038 Phone No. 206-262-1721 Contractor's License No. OMACOI*023L6 I certify (or declare) under penalty of perjury under the laws of the State of Washington that the information provided by bidder in the subcontractor listing form is true and correct to the best of my knowledge and belief" Signature: ed Name: Brandon Akers Date: 03/25/2025 t 1 i i i i t i 4/ 0MACD''': ON Jo3U\ •. It'll' "‘ Revised 3/31/2021 clb CAG-25-047 14th May 5/14/2025 Insurance Guidelines for the City of Renton The City of Renton requires current insurance certificates for one or more of the following lines of coverage and minimum insurance limits: Revised 6/8/23 •$1,000,000 per occurrence and $2,000,000 aggregate for Commercial General Liability (CGL) or Special Event coverage. Limits may be increased for higher than usual or special liability exposures. •$1,000,000 combined single limit for Auto Liability. Required if a commercial vehicle will be used in performance of work or delivery of products, beyond normal commutes. •Proof of Workers’ Compensation coverage, as required by the State of Washington (provide the Washington L&I or excess coverage policy number). •Excess Liability or Umbrella. Required only if needed to reach minimum CGL or auto liability coverage limits. •$1,000,000 Professional Liability. Required if professional services (e.g. architect, engineering, surveying, legal, or medical) are being provided to the city and if those professional services are excluded from the CGL policy. •$1,000,000 Pollution Liability. Required if work involves a pollution risk to the environment. •$2,000,000 Cyber Liability Insurance. Required for information technology professional services agreements. Limits may be higher for special liability exposures. •Builders Risk. May be required up to the amount of the completed value of a new building or major construction project. •$1,000,000 per occurrence Aircraft Liability (Single Limit Bodily Injury and Property Damage Liability). Required coverage only for aircraft tie-down leases. Additional requirements unique to the City of Renton: •Name the City of Renton as a certificate holder and a Primary and Non-Contributory Additional Insured on the policy. This requirement applies to Commercial General, Auto Liability, Excess/ Umbrella, Special Event, and Aircraft Liability policies; it does not apply to Professional Liability, Workers’ Compensation, nor Cyber Insurance. •The Certificate Holder should read: •The City shall be provided with written notice of any policy cancellation within a minimum of two business days of receipt of such notice by the policy holder. •The city does not represent that the minimum required insurance coverage or limits are adequate to protect the vendor/contractor/consultant from all liabilities. •Insurance certificate requirements and minimum limits can only be waived or modified with Risk Manager approval. Direct any questions, comments, or concerns to: Krista Kolaz, Risk Management 425-430-7669 kkolaz@rentonwa.gov City of Renton ATTN: [your City contact’s name & department] 1055 South Grady Way Renton, WA 98057 INSR ADDL SUBR LTR INSR WVD DATE (MM/DD/YYYY) PRODUCER CONTACT NAME: FAXPHONE (A/C, No):(A/C, No, Ext): E-MAIL ADDRESS: INSURER A : INSURED INSURER B : INSURER C : INSURER D : INSURER E : INSURER F : POLICY NUMBER POLICY EFF POLICY EXPTYPE OF INSURANCE LIMITS(MM/DD/YYYY)(MM/DD/YYYY) COMMERCIAL GENERAL LIABILITY AUTOMOBILE LIABILITY UMBRELLA LIAB EXCESS LIAB WORKERS COMPENSATION AND EMPLOYERS' LIABILITY DESCRIPTION OF OPERATIONS / LOCATIONS / VEHICLES (ACORD 101, Additional Remarks Schedule, may be attached if more space is required) AUTHORIZED REPRESENTATIVE INSURER(S) AFFORDING COVERAGE NAIC # Y / N N / A (Mandatory in NH) ANY PROPRIETOR/PARTNER/EXECUTIVE OFFICER/MEMBER EXCLUDED? EACH OCCURRENCE $ DAMAGE TO RENTED $PREMISES (Ea occurrence)CLAIMS-MADE OCCUR MED EXP (Any one person)$ PERSONAL & ADV INJURY $ GENERAL AGGREGATE $GEN'L AGGREGATE LIMIT APPLIES PER: PRODUCTS - COMP/OP AGG $ $ PRO- OTHER: LOCJECT COMBINED SINGLE LIMIT $(Ea accident) BODILY INJURY (Per person)$ANY AUTO OWNED SCHEDULED BODILY INJURY (Per accident)$AUTOS ONLY AUTOS AUTOS ONLY HIRED PROPERTY DAMAGE $AUTOS ONLY (Per accident) $ OCCUR EACH OCCURRENCE $ CLAIMS-MADE AGGREGATE $ DED RETENTION $$ PER OTH- STATUTE ER E.L. EACH ACCIDENT $ E.L. DISEASE - EA EMPLOYEE $ If yes, describe under E.L. DISEASE - POLICY LIMIT $DESCRIPTION OF OPERATIONS below POLICY NON-OWNED SHOULD ANY OF THE ABOVE DESCRIBED POLICIES BE CANCELLED BEFORE THE EXPIRATION DATE THEREOF, NOTICE WILL BE DELIVERED IN ACCORDANCE WITH THE POLICY PROVISIONS. THIS IS TO CERTIFY THAT THE POLICIES OF INSURANCE LISTED BELOW HAVE BEEN ISSUED TO THE INSURED NAMED ABOVE FOR THE POLICY PERIOD INDICATED. NOTWITHSTANDING ANY REQUIREMENT, TERM OR CONDITION OF ANY CONTRACT OR OTHER DOCUMENT WITH RESPECT TO WHICH THIS CERTIFICATE MAY BE ISSUED OR MAY PERTAIN, THE INSURANCE AFFORDED BY THE POLICIES DESCRIBED HEREIN IS SUBJECT TO ALL THE TERMS, EXCLUSIONS AND CONDITIONS OF SUCH POLICIES. LIMITS SHOWN MAY HAVE BEEN REDUCED BY PAID CLAIMS. THIS CERTIFICATE IS ISSUED AS A MATTER OF INFORMATION ONLY AND CONFERS NO RIGHTS UPON THE CERTIFICATE HOLDER. THIS CERTIFICATE DOES NOT AFFIRMATIVELY OR NEGATIVELY AMEND, EXTEND OR ALTER THE COVERAGE AFFORDED BY THE POLICIES BELOW. THIS CERTIFICATE OF INSURANCE DOES NOT CONSTITUTE A CONTRACT BETWEEN THE ISSUING INSURER(S), AUTHORIZED REPRESENTATIVE OR PRODUCER, AND THE CERTIFICATE HOLDER. IMPORTANT: If the certificate holder is an ADDITIONAL INSURED, the policy(ies) must have ADDITIONAL INSURED provisions or be endorsed. If SUBROGATION IS WAIVED, subject to the terms and conditions of the policy, certain policies may require an endorsement. A statement on this certificate does not confer any rights to the certificate holder in lieu of such endorsement(s). COVERAGES CERTIFICATE NUMBER:REVISION NUMBER: CERTIFICATE HOLDER CANCELLATION © 1988-2015 ACORD CORPORATION. All rights reserved. The ACORD name and logo are registered marks of ACORDACORD 25 (2016/03) ACORDTM CERTIFICATE OF LIABILITY INSURANCE Western National Assurance Company RSUI Indemnity Company The Hanover Insurance Company 4/29/2025 Propel Insurance 1201 Pacific Avenue; Suite 1000 COM Middle Market Tacoma, WA 98402-4321 Jamie Lee Cabrera 800 499-0933 866 577-1326 jamielee.cabrera@propelinsurance.com OMA Construction, Inc. PO Box 429 Maple Valley, WA 98038 24465 22314 22292 A X X X CPP129468099 09/01/2024 09/01/2025 1,000,000 1,000,000 5,000 1,000,000 2,000,000 2,000,000 A X CPP129184502 09/01/2024 09/01/2025 1,000,000 A B X X X X X 10000 UMB104969599 NHA602293 09/01/2024 09/01/2024 09/01/2025 09/01/2025 5,000,000 5,000,000 A N CPP129468099 (WA Stop Gap) 09/01/2024 09/01/2025 1,000,000 1,000,000 1,000,000 C Inland Marine Equipment Leased Or Rented IH2 J554812 01 09/01/2024 09/01/2025 $300,000 limit $1,000 Deductible RE: SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE PROJECT Project: SWP-27-4037. City of Renton is Primary and Non-Contributory Additional Insured City of Renton 1055 South Grady Way Renton, WA 98057 1 of 1 #S7307921/M6963725 OMACONST1Client#: 113685 JLC00 1 of 1 #S7307921/M6963725 DATE (MM/DD/YYYY) AGENCY PHONE (A/C, No, Ext): COMPANY E-MAIL ADDRESS: FAX (A/C, No): CODE:SUB CODE: AGENCY CUSTOMER ID #: INSURED LOAN NUMBER POLICY NUMBER EFFECTIVE DATE EXPIRATION DATE THIS REPLACES PRIOR EVIDENCE DATED: LOCATION/DESCRIPTION COVERAGE/PERILS/FORMS AMOUNT OF INSURANCE DEDUCTIBLE NAME AND ADDRESS AUTHORIZED REPRESENTATIVE CONTINUED UNTIL TERMINATED IF CHECKED MORTGAGEE ADDITIONAL INSURED LOSS PAYEE LOAN # THIS EVIDENCE OF PROPERTY INSURANCE IS ISSUED AS A MATTER OF INFORMATION ONLY AND CONFERS NO RIGHTS UPON THE ADDITIONAL INTEREST NAMED BELOW. THIS EVIDENCE DOES NOT AFFIRMATIVELY OR NEGATIVELY AMEND, EXTEND OR ALTER THE COVERAGE AFFORDED BY THE POLICIES BELOW. THIS EVIDENCE OF INSURANCE DOES NOT CONSTITUTE A CONTRACT BETWEEN THE ISSUING INSURER(S), AUTHORIZED REPRESENTATIVE OR PRODUCER, AND THE ADDITIONAL INTEREST. SHOULD ANY OF THE ABOVE DESCRIBED POLICIES BE CANCELLED BEFORE THE EXPIRATION DATE THEREOF, NOTICE WILL BE DELIVERED IN ACCORDANCE WITH THE POLICY PROVISIONS. PROPERTY INFORMATION COVERAGE INFORMATION REMARKS (Including Special Conditions) CANCELLATION ADDITIONAL INTEREST ACORD 27 (2009/12) 1 of © 1993-2009 ACORD CORPORATION. All rights reserved. The ACORD name and logo are registered marks of ACORD THE POLICIES OF INSURANCE LISTED BELOW HAVE BEEN ISSUED TO THE INSURED NAMED ABOVE FOR THE POLICY PERIOD INDICATED. NOTWITHSTANDING ANY REQUIREMENT, TERM OR CONDITION OF ANY CONTRACT OR OTHER DOCUMENT WITH RESPECT TO WHICH THIS EVIDENCE OF PROPERTY INSURANCE MAY BE ISSUED OR MAY PERTAIN, THE INSURANCE AFFORDED BY THE POLICIES DESCRIBED HEREIN IS SUBJECT TO ALL THE TERMS, EXCLUSIONS AND CONDITIONS OF SUCH POLICIES. LIMITS SHOWN MAY HAVE BEEN REDUCED BY PAID CLAIMS. ACORDTM EVIDENCE OF PROPERTY INSURANCE OMACONST1 04/29/2025 Propel Insurance 1201 Pacific Avenue; Suite 1000 COM Middle Market Tacoma, WA 98402-4321 800 499-0933 113685 866 577-1326 michelle.newberg@propelinsurance.com Western National Assurance Company 5350 West 78th Street Minneapolis, MN 55439 OMA Construction, Inc. PO Box 429 Maple Valley, WA 98038 CPP129468099 09/01/24 09/01/25 SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE PROJECT Project: SWP-27-4037 Builder's Risk, special form perils, including theft vandalism, malicious mischief, collapse - Maximum limit for any one loss $3,838,897 $5,000 Valuation: Replacement Cost Coinsurance: 100% City of Renton is Primary and Non-Contributory Additional Insured City of Renton 1055 South Grady Way Renton, WA 98057 1 S 180846 JLC00 This page has been left blank intentionally. COMMERICAL GENERAL LIABILITY CG MU 0009 06 22 CG MU 0009 06 22 Includes copyrighted material of the Insurance Service Office, Inc., with its permission. Page 1 of 10 COMMERCIAL GENERAL LIABILITY ENHANCEMENT ENDORSEMENT The Commercial General Liability Enhancement Endorsement is an optional endorsement that provides coverage en- hancements. The following is a summary of broadened coverages provided by this endorsement. No coverage is pro- vided by this summary, refer to following endorsement for changes in your policy. SUMMARY OF COVERAGES PAGE Bodily Injury And Property Damage Liability •Non Owned Watercraft Up To 50 Feet ...................................................................................... 2 Property Damage Liability •Elevators .................................................................................................................................... 3 •Fire, Lightning, Explosion Or Sprinkler Leakage Exception....................................................... 3 •Borrowed Equipment ($25,000 Per Occurrence, $50,000 Aggregate, $2,500 Deductible Per Occurrence......................................................................................... 3 Supplementary Payments – Amended •Bail Bonds Up To $5,000 ........................................................................................................... 3 •Loss of Earnings Up To $500/Day ............................................................................................ 3 Who Is An Insured Amendments •Employee Bodily Injury To A Co-Employee ............................................................................... 4 •Newly Formed Or Acquired Organizations For Up To 180 Days ............................................... 4 •Blanket Additional Insured – Vendors – As Required By Contract ............................................ 4 •Blanket Additional Insured – Lessor Of Leased Equipment ...................................................... 6 •Blanket Additional Insured – Managers Or Lessors Of Premises.............................................. 6 •Blanket Additional Insured – State Or Governmental Agency Or Subdivisions Or Political Subdivision – Permits Or Authorizations .............................................................. 7 •Blanket Additional Insured – State Or Governmental Agency Or Subdivision Or Political Subdivision – Permits Or Authorizations Relating To Premises ........................... 8 Damage To Premises Rented To You – $300,000 ............................................................................... 9 Medical Payments Increased Limit – $10,000 Or Amount Shown on Declarations ............................. 9 Conditions •Knowledge of Occurrence, Offense, Claim Or Suit Amended ................................................... 9 •Unintentional Failure To Disclose Hazards ................................................................................ 9 •Waiver of Subrogation.............................................................................................................. 10 Insured Contract Amended ................................................................................................................... 10 Personal And Advertising Injury Redefined •Televised, Videotaped Or Electronic Publication ..................................................................... 10 COMMERCIAL GENERAL LIABILITY CG MU 0009 06 22 CG MU 0009 06 22 Includes copyrighted material of the Insurance Service Office, Inc., with its permission. Page 2 of 10 THIS ENDORSEMENT CHANGES THE POLICY. PLEASE READ IT CAREFULLY COMMERCIAL GENERAL LIABILITY ENHANCEMENT ENDORSEMENT This endorsement modifies the insurance provided under the following: COMMERCIAL GENERAL LIABILITY COVERAGE FORM With respect to the coverage provided by this endorsement, the provisions of the Coverage Form apply unless modified by this endorsement. The SECTIONS of the Commercial General Liability Coverage Form identified in this endorsement will be amended as shown below. SECTION I – COVERAGES AMENDMENTS COVERAGE A – BODILY INJURY AND PROPERTY DAMAGE LIABILITY A.Non Owned Aircraft Or Watercraft Item 2. Exclusions, Paragraph g. is replaced by the following: g.Aircraft, Auto Or Watercraft “Bodily injury” or “property damage” arising out of the ownership, maintenance, use or entrustment to others of any aircraft, “auto” or watercraft owned or operated by or rented or loaned to any insured. Use includes operation and “loading or unloading”. This exclusion applies even if the claims against any insured allege negligence or other wrongdoing in the supervision, hiring, employment, training or monitoring of others by that insured, if the “occurrence” which caused the “bodily injury” or “property damage” involved in the ownership, maintenance, use or entrustment to others of any aircraft, “auto” or watercraft that is owned or operated by or rented or loaned to any insured. This exclusion does not apply to: (1)A watercraft while ashore on premises you own or rent; (2)A watercraft you do not own that is: (a)Less than 50 feet long; and (b)Not being used to carry persons or property for a charge; This Subparagraph (2) applies to any person, who with your expressed or implied consent, either uses or is responsible for the use of the watercraft; (3)Parking an “auto” on, or on the ways next to, premises you own or rent, provided the “auto” is not owned by or rented or loaned to you or the insured; (4)Liability assumed under any “insured contract” for the ownership, maintenance or use of aircraft or watercraft; or (5)“Bodily injury” or “property damage” arising out of: (a)The operation of machinery or equipment that is attached to, or part of, a land vehicle that would qualify under the definition of “mobile equipment” if it were not subject to a compulsory or financial responsibility law or other motor vehicle insurance law where it is licensed or principally garaged; or (b)The operation of any of the machinery or equipment listed in Paragraph f. (2) or f. (3) of the definition of “mobile equipment”. CG MU 0009 06 22 Includes copyrighted material of the Insurance Service Office, Inc., with its permission. Page 3 of 10 B.Damage To Property Coverage Extensions Item 2. Exclusions, Paragraph j. is replaced by the following: j.Damage To Property “Property damage” to: (1)Property you own, rent, or occupy, including any costs or expenses incurred by you, or any other person, organization or entity, for repair, replacement, enhancement, restoration or maintenance of such property for any reason, including prevention of injury to a person or damage to another’s property; (2)Premises you sell, give away or abandon, if the “property damage” arises out of any part of those premises; (3)Property loaned to you; (4)Personal property in the care, custody or control of the insured; (5)That particular part of real property on which you or any contractors or subcontractors working directly or indirectly on your behalf are performing operations, if the “property damage” arises out of those operations; or (6)That particular part of any property that must be restored, repaired or replaced because “your work” was incorrectly performed on it. Paragraphs (1), (3) and (4) of this exclusion do not apply to “property damage” (other than damage by fire, lightning, explosion or sprinkler leakage) to premises, including the contents of such premises, rented to you for a period of seven or fewer consecutive days. A separate limit of insurance applies to Damage To Premises Rented To You as described in SECTION III – LIMITS OF INSURANCE. However, the provisions of this paragraph do not apply if coverage for Damage To Premises Rented To You is excluded by endorsement. Paragraph (2) of this exclusion does not apply if the premises are “your work” and were never occupied, rented or held for rental by you. Paragraphs (3) and (4) of this exclusion do not apply to the use of elevators. Paragraphs (3), (4), (5) and (6) of this exclusion do not apply to liability assumed under a sidetrack agreement. Paragraph (4) of this exclusion does not apply to “property damage” to borrowed equipment while not being used to perform operations at the jobsite. Subject to Paragraph 2. of SECTION III – LIMITS OF INSURANCE, the rules below fix the most we will pay for “property damage” under this provision: (1)$25,000 any one “occurrence”, regardless of the number of persons or organizations who sustain damages because of that “occurrence”; (2)$50,000 annual aggregate; and (3)We will pay only for damages in excess of $2,500 as a result of any one “occurrence”, regardless of the number of persons or organizations who sustain damages because of that “occurrence”. We may, or if required by law, pay all or any part of any deductible amount, if applicable, to effect settlement of any claim or “suit”. Upon notice of our payment of a deductible amount, you shall promptly reimburse us for the part of the deductible amount we paid. Paragraph (6) of this exclusion does not apply to “property damage” included in the “products-completed operations hazard”. The insurance provided for “property damage” from the use of elevators and for “property damage” to borrowed equipment is excess over any other valid and collectible property insurance (including any deductible portion thereof) available to the insured whether primary, excess, contingent or on any other basis. C.Damage To Premises Rented To You Item 2. Exclusions, the last paragraph is replaced by the following: Exclusions c. through n. do not apply to damage by fire, lightning, explosion or sprinkler leakage to premises while rented to you or temporarily occupied by you with permission of the owner. A separate limit of insurance applies to this coverage as described in Paragraph 6. of SECTION III – LIMITS OF INSURANCE. CG MU 0009 06 22 Includes copyrighted material of the Insurance Service Office, Inc., with its permission. Page 4 of 10 COVERAGE B – PERSONAL AND ADVERTISING INJURY LIABILITY D.Personal And Advertising Injury Item 2. Exclusions is amended by replacing Sub-paragraphs b. and c. with the following: b.Material Published With Knowledge Of Falsity “Personal and advertising injury” arising out of oral, written, televised, videotaped or electronic publication, in any manner, of material, if done by or at the direction of the insured with knowledge of its falsity. c.Material Published Prior To Policy Period “Personal and advertising injury” arising out of oral, written, televised, videotaped or electronic publication, in any manner, of material whose first publication took place before the beginning of the policy period. SUPPLEMENTARY PAYMENTS – COVERAGES A AND B E.Supplementary Payments – Coverages A and B Item 1. is amended by replacing Subparagraphs b. and d. with the following: b.Up to $5,000 for cost of bail bonds required because of accidents or traffic law violations arising out of the use of any vehicle to which the Bodily Injury Liability Coverage applies. We do not have to furnish these bonds. d.All reasonable expenses incurred by the insured at our request to assist us in the investigation or defense of the claim or “suit”, including actual loss of earnings up to $500 a day because of time off from work. SECTION II – WHO IS AN INSURED AMENDMENTS A.Employee Bodily Injury To A Co-Employee Paragraph 2. a. (1) is replaced by the following: However, none of these “employees” or “volunteer workers” are insureds for “bodily injury” or “personal and advertising injury”: (a)To you, to your partners or members (if you are a partnership or joint venture), to your members (if you are a limited liability company), to a co-“employee” while in the course of his or her employment or performing duties related to the conduct of your business, or to your other “volunteer workers” while performing duties related to the conduct of your business; (b)To the spouse, child, parent, brother or sister of the co-“employee” or “volunteer worker” as a consequence of Paragraph (1)(a) above; (c)For which there is any obligation to share damages with or repay someone else who must pay damages because of the injury described in Paragraph (1)(a) or (b) above; or (d)Arising out of his or her providing or failing to provide professional health care services. However, if a suit seeking damages for “bodily injury” or “personal and advertising injury” to any co-“employee” or other ”volunteer worker” arising out of and in the course of the co-“employee’s” or “volunteer worker’s” employment or while performing duties related to the conduct of your business, or a suit seeking damages brought by the spouse, child, parent, brother or sister of the co-“employee” or other “volunteer worker”, is brought against you or a co-“employee” or a “volunteer worker”, we will reimburse the reasonable costs that you incur in providing a defense to the co-“employee” or “volunteer worker” against such matters. Any reimbursement made pursuant to this sub-section will be in addition to the limits of liability set forth in the Declarations. B.Newly Acquired Organizations Paragraph 3. a. is replaced by the following: a.Coverage under this provision is afforded only until the 180th day after you acquire or form the organization or the end of the policy period, whichever is earlier; CG MU 0009 06 22 Includes copyrighted material of the Insurance Service Office, Inc., with its permission. Page 5 of 10 The following are added: C.Blanket Additional Insured – Vendors – As Required By Contract 1.Section II – Who Is An Insured is amended to include as an additional insured any person(s) or organization(s) (referred to throughout this endorsement as vendor) with whom you have agreed in a written contract, executed prior to loss, to name as an additional insured, but only with respect to "bodily injury" or "property damage" arising out of "your products" which are distributed or sold in the regular course of the vendor's business. However, a.The insurance afforded to such vendor only applies to the extent permitted by law; and b.If coverage provided to the vendor is required by a contract or agreement, the insurance afforded to such vendor will not be broader than that which you are required by the contract or agreement to provide for such vendor. 2.With respect to the insurance afforded to these vendors, the following additional exclusions apply: a.The insurance afforded the vendor does not apply to: (1)"Bodily injury" or "property damage" for which the vendor is obligated to pay damages by reason of the assumption of liability in a contract or agreement. This exclusion does not apply to liability for damages that the vendor would have in the absence of the contract or agreement; (2)Any express warranty unauthorized by you; (3)Any physical or chemical change in the product made intentionally by the vendor; (4)Repackaging, except when unpacked solely for the purpose of inspection, demonstration, testing, or the substitution of parts under instructions from the manufacturer, and then repackaged in the original container; (5)Any failure to make such inspections, adjustments, tests or servicing as the vendor has agreed to make or normally undertakes to make in the usual course of business, in connection with the distribution or sale of the products; (6)Demonstration, installation, servicing or repair operations, except such operations performed at the vendor's premises in connection with the sale of the product; (7)Products which, after distribution or sale by you, have been labeled or relabeled or used as a container, part or ingredient of any other thing or substance by or for the vendor; or (8)"Bodily injury" or "property damage" arising out of the sole negligence of the vendor for its own acts or omissions or those of its employees or anyone else acting on its behalf. However, this exclusion does not apply to: (i)The exceptions contained in Subparagraphs (4) or (6); or (ii)Such inspections, adjustments, tests or servicing as the vendor has agreed to make or normally undertakes to make in the usual course of business, in connection with the distribution or sale of the products. 3.This Provision C. does not apply: a.To any insured person or organization from whom you have acquired such products, or any ingredient, part or container, entering into, accompanying or containing such products; b.To any vendor for which coverage as an additional insured specifically is scheduled by endorsement; or c.When liability included within the "products-completed operations hazard" has been excluded for such product either by the provisions of the coverage part or by endorsement. 4.With respect to the insurance afforded to these vendors, the following is added to Section III – Limits Of Insurance: If coverage provided to the vendor is required by a contract or agreement, the most we will pay on behalf of the vendor is: a.The minimum amount required by the contract or agreement; or b.The Limits of Insurance shown in the Declarations; whichever is less. This endorsement shall not increase the applicable Limits of Insurance shown in the Declarations. CG MU 0009 06 22 Includes copyrighted material of the Insurance Service Office, Inc., with its permission. Page 6 of 10 5.With respect to the insurance afforded to these additional insureds, the following additional exclusion applies: This insurance does not apply to: a."Bodily injury", "property damage" or "personal and advertising injury" arising out of the rendering of, or the failure to render, any professional architectural, engineering or surveying services, including: (1)The preparing, approving, or failing to prepare or approve, maps, shop drawings, opinions, reports, surveys, field orders, change orders or drawings and specifications; or (2)Supervisory, inspection, architectural or engineering activities. This exclusion applies even if the claims against an additional insured allege negligence or other wrongdoing in the supervision, hiring, employment, training or monitoring of others by that insured, if the “occurrence” which caused the “bodily injury” or “property damage”, or the offense which caused the “personal and advertising injury”, involved the rendering of or failure to render any professional services by you with respect to your providing engineering, architectural or surveying services in your capacity as an engineer, architect or surveyor. D.Blanket Additional Insured – Lessor Of Leased Equipment 1.Section II – Who Is An Insured is amended to include as an additional insured any person(s) or organization(s) from whom you lease equipment when you and such person(s) or organization(s) have agreed in writing in a contract or agreement, executed prior to loss, that such person(s) or organization(s) be added as an additional insured on your policy. Such person(s) or organization(s) is an insured only with respect to liability for "bodily injury", "property damage" or "personal and advertising injury" caused by your negligent acts or omissions in the maintenance, operation or use of equipment leased to you by such person(s) or organization(s). However, the insurance afforded to such additional insured: a.Only applies to the extent permitted by law; and b.Will not be broader than that which you are required by the contract or agreement to provide for such additional insured. c.Does not apply to any "occurrence" which takes place after the equipment lease expires; A person's or organization's status as an additional insured under this endorsement ends when their contract or agreement with you for such leased equipment ends. 2.With respect to the insurance afforded to the Lessor, the following additional exclusions apply: "Bodily injury" or "property damage" arising out of: (1)The assumption of liability in a contract or agreement. This exclusion does not apply to liability for damages that the Lessor would have in the absence of the contract or agreement; (2)Any express warranty made by the Lessor; (3)The demonstration, installation, servicing, inspections, adjustments, tests, repair, or maintenance operations by or for the Lessor; (4)The negligence or strict liability of the Lessor for its own acts or or omissions or those of its employees or anyone else acting on its behalf; or (5)Any failure on the part of the Lessor to provide information, instructions and/or warnings with respect to the maintenance, use or operation of the equipment. 3.With respect to the insurance afforded to these additional insureds, the following is added to Section III – Limits Of Insurance: If coverage provided to the additional insured is required by a contract or agreement, the most we will pay on behalf of the additional insured is: a.The minimum amount required by the contract or agreement; or b.The Limits of Insurance shown in the Declarations; whichever is less. This endorsement shall not increase the applicable Limits of Insurance shown in the Declarations. CG MU 0009 06 22 Includes copyrighted material of the Insurance Service Office, Inc., with its permission. Page 7 of 10 4.With respect to the insurance afforded to these additional insureds, the following additional exclusion applies: This insurance does not apply to: a."Bodily injury", "property damage" or "personal and advertising injury" arising out of the rendering of, or the failure to render, any professional architectural, engineering or surveying services, including: (1)The preparing, approving, or failing to prepare or approve, maps, shop drawings, opinions, reports, surveys, field orders, change orders or drawings and specifications; or (2)Supervisory, inspection, architectural or engineering activities. This exclusion applies even if the claims against an additional insured allege negligence or other wrongdoing in the supervision, hiring, employment, training or monitoring of others by that insured, if the “occurrence” which caused the “bodily injury” or “property damage”, or the offense which caused the “personal and advertising injury”, involved the rendering of or failure to render any professional services by you with respect to your providing engineering, architectural or surveying services in your capacity as an engineer, architect or surveyor. E.Blanket Additional Insured – Managers Or Lessors Of Premises 1.Section II – Who Is An Insured is amended to include as an additional insured any person(s) or organization(s) with whom you have agreed in a written contract, executed prior to loss, to name as an additional insured, but only with respect to liability arising out of the ownership, maintenance or use of that part of the premises leased to you, subject to the following additional exclusions: This insurance does not apply to: a.Any "occurrence" which takes place after you cease to be a tenant in that premises. b.Structural alterations, new construction or demolition operations performed by or on behalf of such additional insured. However: a.The insurance afforded to such additional insured only applies to the extent permitted by law; and b.If coverage provided to the additional insured is required by a contract or agreement, the insurance afforded to such additional insured will not be broader than that which you are required by the contract or agreement to provide for such additional insured. 2.With respect to the insurance afforded to these additional insureds, the following is added to Section III – Limits Of Insurance: If coverage provided to the additional insured is required by a contract or agreement, the most we will pay on behalf of the additional insured is: a.The minimum amount required by the contract or agreement; or b.The Limits of Insurance shown in the Declarations; whichever is less. This endorsement shall not increase the applicable Limits of Insurance shown in the Declarations. 3.With respect to the insurance afforded to these additional insureds, the following additional exclusion applies: This insurance does not apply to: a."Bodily injury", "property damage" or "personal and advertising injury" arising out of the rendering of, or the failure to render, any professional architectural, engineering or surveying services, including: (1)The preparing, approving, or failing to prepare or approve, maps, shop drawings, opinions, reports, surveys, field orders, change orders or drawings and specifications; or (2)Supervisory, inspection, architectural or engineering activities. This exclusion applies even if the claims against an additional insured allege negligence or other wrongdoing in the supervision, hiring, employment, training or monitoring of others by that insured, if the “occurrence” which caused the “bodily injury” or “property damage”, or the offense which caused the “personal and advertising injury”, involved the rendering of or failure to render any professional services by you with respect to your providing engineering, architectural or surveying services in your capacity as an engineer, architect or surveyor. CG MU 0009 06 22 Includes copyrighted material of the Insurance Service Office, Inc., with its permission. Page 8 of 10 F.Blanket Additional Insured – State Or Governmental Agency Or Subdivision Or Political Subdivision – Permits Or Authorizations Section II – Who Is An Insured is amended to include as an additional insured any state or governmental agency or subdivision or political subdivision with whom you have agreed in a written contract, executed prior to loss, to name as an additional insured, subject to the following provisions: 1.This insurance applies only with respect to operations performed by you or on your behalf for which the state or governmental agency or subdivision or political subdivision has issued a permit or authorization. However: a.The insurance afforded to such additional insured only applies to the extent permitted by law; and b.If coverage provided to the additional insured is required by a contract or agreement, the insurance afforded to such additional insured will not be broader than that which you are required by the contract or agreement to provide for such additional insured. 2.This insurance does not apply to: a."Bodily injury", "property damage" or "personal and advertising injury" arising out of operations performed for the federal government, state or municipality; or b."Bodily injury" or "property damage" included within the "products-completed operations hazard". 3.With respect to the insurance afforded to these additional insureds, the following is added to Section III – Limits Of Insurance: If coverage provided to the additional insured is required by a contract or agreement, the most we will pay on behalf of the additional insured is: a.The minimum amount required by the contract or agreement; or b.The Limits of Insurance shown in the Declarations; whichever is less. This endorsement shall not increase the applicable Limits of Insurance shown in the Declarations. 4.With respect to the insurance afforded to these additional insureds, the following additional exclusion applies: This insurance does not apply to: a."Bodily injury", "property damage" or "personal and advertising injury" arising out of the rendering of, or the failure to render, any professional architectural, engineering or surveying services, including: (1)The preparing, approving, or failing to prepare or approve, maps, shop drawings, opinions, reports, surveys, field orders, change orders or drawings and specifications; or (2)Supervisory, inspection, architectural or engineering activities. This exclusion applies even if the claims against an additional insured allege negligence or other wrongdoing in the supervision, hiring, employment, training or monitoring of others by that insured, if the “occurrence” which caused the “bodily injury” or “property damage”, or the offense which caused the “personal and advertising injury”, involved the rendering of or failure to render any professional services by you with respect to your providing engineering, architectural or surveying services in your capacity as an engineer, architect or surveyor. G.Blanket Additional Insured – State Or Governmental Agency Or Subdivision Or Political Subdivision – Permits Or Authorizations Relating To Premises Section II – Who Is An Insured is amended to include as an additional insured any state or governmental agency or subdivision or political subdivision with whom you have agreed in a written contract, executed prior to loss, to name as an additional insured, subject to the following provision: 1.This insurance applies only with respect to the following hazards for which the state or governmental agency or subdivision or political subdivision has issued a permit or authorization in connection with premises you own, rent or control and to which this insurance applies: a.The existence, maintenance, repair, construction, erection or removal of advertising signs, awnings, canopies, cellar entrances, coal holes, driveways, manholes, marquees, hoist away openings, sidewalk vaults, street banners or decorations and similar exposures; or b.The construction, erection or removal of elevators; or c.The ownership, maintenance or use of any elevators covered by this insurance. CG MU 0009 06 22 Includes copyrighted material of the Insurance Service Office, Inc., with its permission. Page 9 of 10 However, a.The insurance afforded to such additional insured only applies to the extent permitted by law; and b.If coverage provided to the additional insured is required by a contract or agreement, the insurance afforded to such additional insured will not be broader than that which you are required by the contract or agreement to provide for such additional insured. 2.With respect to the insurance afforded to these additional insureds, the following is added to Section III – Limits Of Insurance: If coverage provided to the additional insured is required by a contract or agreement, the most we will pay on behalf of the additional insured is: a.The minimum amount required by the contract or agreement; or b.The Limits of Insurance shown in the Declarations; whichever is less. This endorsement shall not increase the applicable Limits of Insurance shown in the Declarations. 3.With respect to the insurance afforded to these additional insureds, the following additional exclusion applies: This insurance does not apply to: a."Bodily injury", "property damage" or "personal and advertising injury" arising out of the rendering of, or the failure to render, any professional architectural, engineering or surveying services, including: (1)The preparing, approving, or failing to prepare or approve, maps, shop drawings, opinions, reports, surveys, field orders, change orders or drawings and specifications; or (2)Supervisory, inspection, architectural or engineering activities. This exclusion applies even if the claims against an additional insured allege negligence or other wrongdoing in the supervision, hiring, employment, training or monitoring of others by that insured, if the “occurrence” which caused the “bodily injury” or “property damage”, or the offense which caused the “personal and advertising injury”, involved the rendering of or failure to render any professional services by you with respect to your providing engineering, architectural or surveying services in your capacity as an engineer, architect or surveyor. SECTION III – LIMITS OF INSURANCE AMENDMENTS A.Damage To Premises Rented To You Paragraph 6. is replaced by the following: 6.Subject to Paragraph 5. above, the most we will pay under Coverage A for damages because of “property damage” to any one premises, while rented to you, or in the case of damage by fire, lightning, explosion or sprinkler leakage, while rented to you or temporarily occupied by you with permission of the owner is the greater of: a.$300,000; or b.The amount shown next to the Damage To Premises Rented To You Limit in the Declarations. However, the provisions of this paragraph do not apply if Damage To Premises Rented To You Coverage is excluded by endorsement. B.Medical Expense Limit Paragraph 7. is replaced with the following: 7.Subject to Paragraph 5. above, the most we will pay under Coverage C for all medical expenses because of “bodily injury” sustained by any one person is the greater of: a.$10,000; or b.The amount shown next to the Medical Expense Limit in the Declarations. This insurance does not apply if coverage for Medical Expenses is excluded either by the provisions of the coverage part or by endorsement. CG MU 0009 06 22 Includes copyrighted material of the Insurance Service Office, Inc., with its permission. Page 10 of 10 SECTION IV – COMMERCIAL GENERAL LIABILITY CONDITIONS AMENDMENTS A.Knowledge Of Occurrence Item 2. Duties In The Event Of Occurrence, Offense, Claim or Suit is amended by adding the following: e.You must give us or our authorized representative prompt notice of an “occurrence”, claim or loss only when the “occurrence”, claim or loss is known to: (1)You, if you are an individual; (2)A partner, if you are a partnership; (3)An executive officer or insurance manager, if you are a corporation; or (4)A member or manager, if you are a limited liability company. B.Other Insurance Item 4. Other Insurance, b. Excess Insurance (1) (a) (ii) is replaced by the following: (ii)That is fire, lightning, explosion or sprinkler leakage insurance for premises rented to you or temporarily occupied by you with permission of the owner; C.Unintentional Failure To Disclose Hazards Item 6. Representations is replaced by the following: 6.Representations And Unintentional Failure To Disclose Hazards a.By accepting this policy, you agree: (1)The statements in the Declarations are accurate and complete; (2)Those statements are based upon representations you made to us; and (3)We have issued this policy in reliance upon your representations. b.If you unintentionally fail to disclose any hazards existing at the inception date of your policy, we will not deny coverage under this Coverage Part because of such failure. However, this provision does not affect our right to collect additional premium or exercise our right of cancellation or non-renewal. D.Waiver of Subrogation Item 8. Transfer of Rights of Recovery Against Others to Us is hereby amended by the addition of the following: We waive any right of recovery we may have because of payments we make for injury or damage arising out of your ongoing operations or "your work" done under a written contract, executed prior to loss, requiring such waiver with that person or organization and included in the "products-completed operations hazard". However, our rights may only be waived prior to the "occurrence" giving rise to the injury or damage for which we make payment under this Coverage Part. The insured must do nothing after a loss to impair our rights. At our request, the insured will bring "suit" or transfer those rights to us and help us enforce those rights. SECTION V – DEFINITIONS AMENDMENTS A.Insured Contract Amended Paragraph 9. a. is replaced by the following: a.A contract for a lease of premises. However, that portion of the contract for a lease of premises that indemnifies any person or organization for damage by fire, lightning, explosion or sprinkler leakage to premises while rented to you or temporarily occupied by you with permission of the owner is not an “insured contract”; B.Personal And Advertising Injury Redefined Paragraph 14. d. and e. are replaced by the following: d.Oral, written, televised, videotaped or electronic publication of material that slanders or libels a person or organization or disparages a person’s or organization’s goods, products or service; e.Oral, written, televised, videotaped or electronic publication of material that violates a person’s right of privacy; COMMERCIAL GENERAL LIABILITY WN GL 139 06 18 THIS ENDORSEMENT CHANGES THE POLICY. PLEASE READ IT CAREFULLY. WN GL 139 06 18 Page 1 of 2 Includes copyrighted material of Insurance Services Office, Inc., with its permission. ADDITIONAL INSURED – CONTRACTORS – OPERATIONS AND COMPLETED OPERATIONS – WITH ADDITIONAL INSURED REQUIREMENT IN CONSTRUCTION CONTRACT This endorsement modifies insurance provided under the following: COMMERCIAL GENERAL LIABILITY COVERAGE PART 1.Additional Insured – Operations A.Section II – Who Is An Insured is amended to include as an additional insured: (1)Any person or organization for whom you are performing operations when you and such person or organization have agreed in writing in a contract or agreement that such person or organization be added as an additional insured on your policy; and (2)Any other person or organization you are required to add as an additional insured under the contract or agreement de- scribed in Paragraph 1. above. Such person(s) or organization(s) is an add- tional insured only with respect to liability for "bodily injury", "property damage" or "per- sonal and advertising injury" caused, in whole or in part, by: a.Your acts or omissions; or b.The acts or omissions of those acting on your behalf; in the performance of your ongoing opera- tions for the additional insured. B.With respect to Additional Insured - Opera- tions, coverage is limited as follows: This insurance does not apply to “bodily in- jury” or “property damage” occurring after: (1)All work, including materials, parts or equipment furnished in connection with such work, on the project (other than ser- vice, maintenance or repairs) to be per- formed by or on behalf of the additional insured(s) at the location of the covered operations has been completed; or (2)That portion of “your work” out of which the injury or damage arises has been put to its intended use by any person or or- ganization other than another contractor or subcontractor engaged in performing operations for a principal as a part of the same project. 2.Additional Insured – Completed Operations A.Section II – Who Is An Insured is amended to include as an additional insured: (1)Any person or organization for whom you are performing operations when you and such person or organization have agreed in writing in a contract or agreement that such person or organization be added as an additional insured on your policy; and (2)Any other person or organization you are required to add as an additional insured under the contract or agreement de- scribed in Paragraph 1. above. Such person(s) or organization(s) is an addi- tional insured only with respect to liability for "bodily injury", "property damage" or "per- sonal and advertising injury" caused, in whole or in part, by: a.Your acts or omissions; or b.The acts or omissions of those acting on your behalf; and included in the “products-completed op- erations hazard”. WN GL 139 06 18 Page 2 of 2 Includes copyrighted material of Insurance Services Office, Inc., with its permission. B.With respect to Additional Insured – Com- pleted Operations, coverage is limited as fol- lows: (1)A person or organization’s status as an in- sured under Additional Insured – Com- pleted Operations continues only for the period of time required by any written con- tract or agreement. (2)The insurance provided to the additional insured does not apply to “bodily injury”, “property damage” or “personal and ad- vertising injury” arising out of “your work” for which a consolidated (wrap-up) insur- ance program has been provided by the prime contractor-project manager or owner of the construction project in which you are involved. 3.Primary and Noncontributory The following is added to the Other Insurance Condition and supersedes any provision to the contrary: Primary And Noncontributory Insurance This insurance is primary to and will not seek con- tribution from any other insurance available to an additional insured under your policy provided that: (1)The additional insured is a Named Insured un- der such other insurance; and (2)You have agreed in writing in a contract or agreement that this insurance would be pri- mary and would not seek contribution from any other insurance available to the additional insured. 4.Other Provisions Applicable to Additional In- sured – Operations and Additional Insured – Completed Operations A.The Amendment of Insured Contract Defini- tion (Endorsement CG 24 26) does not apply to an additional insured. B.The coverage provided under Paragraph f. of the definition of “insured contract” under Sec- tion V – Definitions does not apply to an ad- ditional insured under this endorsement un- less required by a written contract or agreement. C.The insurance afforded to such additional in- sured only applies to the extent permitted by law; and If coverage provided to the additional insured is required by a contract or agreement, the in- surance afforded to such additional insured will not be broader than that which you are re- quired by the contract or agreement to provide for such additional insured. D.With respect to the insurance afforded to these additional insureds, the following is added to Section III – Limits Of Insurance: If coverage provided to the additional insured is required by a contract or agreement, the most we will pay on behalf of the additional insured is: (1)The minimum amount required by the contract or agreement; or (2)The Limits of Insurance shown in the Dec- larations; whichever is less. This endorsement shall not increase the ap- plicable Limits of Insurance shown in the Dec- larations. E.With respect to the insurance afforded to these additional insureds, the following addi- tional exclusion applies: This insurance does not apply to: "Bodily injury", "property damage" or "per- sonal and advertising injury" arising out of the rendering of, or the failure to render, any pro- fessional architectural, engineering or survey- ing services, including: (1)The preparing, approving, or failing to prepare or approve, maps, shop draw- ings, opinions, reports, surveys, field or- ders, change orders or drawings and specifications; or (2)Supervisory, inspection, architectural or engineering activities. This exclusion applies even if the claims against an additional insured allege negli- gence or other wrongdoing in the supervision, hiring, employment, training or monitoring of others by that insured, if the “occurrence” which caused the “bodily injury” or “property damage”, or the offense which caused the “personal and advertising injury”, involved the rendering of or failure to render any profes- sional services by you with respect to your providing engineering, architectural or survey- ing services in your capacity as an engineer, architect or surveyor. COMMERCIAL GENERAL LIABILITY CG 25 03 05 09 THIS ENDORSEMENT CHANGES THE POLICY. PLEASE READ IT CAREFULLY. DESIGNATED CONSTRUCTION PROJECT(S) GENERAL AGGREGATE LIMIT This endorsement modifies insurance provided under the following: COMMERCIAL GENERAL LIABILITY COVERAGE PART SCHEDULE Designated Construction Project(s): Information required to complete this Schedule, if not shown above, will be shown in the Declarations. A.For all sums which the insured becomes le- gally obligated to pay as damages caused by "occurrences" under Section I – Coverage A, and for all medical expenses caused by acci- dents under Section I – Coverage C, which can be attributed only to ongoing operations at a single designated construction project shown in the Schedule above: 1.A separate Designated Construction Proj- ect General Aggregate Limit applies to each designated construction project, and that limit is equal to the amount of the General Aggregate Limit shown in the Declarations. 2.The Designated Construction Project Gen- eral Aggregate Limit is the most we will pay for the sum of all damages under Coverage A, except damages because of "bodily injury" or "property damage" included in the "products-completed oper- ations hazard", and for medical expenses under Coverage C regardless of the number of: a.Insureds; b.Claims made or "suits" brought; or c.Persons or organizations making claims or bringing "suits". 3.Any payments made under Coverage A for damages or under Coverage C for medical expenses shall reduce the Desig- nated Construction Project General Aggre- gate Limit for that designated construction project. Such payments shall not reduce the General Aggregate Limit shown in the Declarations nor shall they reduce any other Designated Construction Project General Aggregate Limit for any other designated construction project shown in the Schedule above. 4.The limits shown in the Declarations for Each Occurrence, Damage To Premises Rented To You and Medical Expense continue to apply. However, instead of being subject to the General Aggregate Limit shown in the Declarations, such limits will be subject to the applicable Designated Construction Project General Aggregate Limit. B.For all sums which the insured becomes legally obligated to pay as damages caused by "occurrences" under Section I – Coverage A, and for all medical expenses caused by accidents under Section I – Coverage C, which cannot be attributed only to ongoing operations at a single designated construction project shown in the Schedule above: 1.Any payments made under Coverage A for damages or under Coverage C for medical expenses shall reduce the amount available under the General Aggregate Limit or the Products-completed Opera- tions Aggregate Limit, whichever is ap- plicable; and CG 25 03 05 09 © Insurance Services Office, Inc., 2008 Page 1 of 2 CPP 1003003 06 PER WRITTEN CONTRACT OR AGREE- MENT WHERE YOU AGREED TO PRO- VIDE A SEPARATE GENERAL AGGRE- GATE LIMIT FOR EACH PROJECT 2.Such payments shall not reduce any Des- ignated Construction Project General Aggregate Limit. C.When coverage for liability arising out of the "products-completed operations hazard" is provided, any payments for damages because of "bodily injury" or "property damage" in- cluded in the "products-completed operations hazard" will reduce the Products-completed Operations Aggregate Limit, and not reduce the General Aggregate Limit nor the Desig- nated Construction Project General Aggregate Limit. D.If the applicable designated construction proj- ect has been abandoned, delayed, or aban- doned and then restarted, or if the authorized contracting parties deviate from plans, blue- prints, designs, specifications or timetables, the project will still be deemed to be the same construction project. E.The provisions of Section III – Limits Of In- surance not otherwise modified by this endorsement shall continue to apply as stipulated. Page 2 of 2 © Insurance Services Office, Inc., 2008 CG 25 03 05 09 WN CA 80 06 19 WN CA 80 06 19 Page 1 of 6 Includes copyrighted material of Insurance Services Office, with its permission. BUSINESS AUTO ENHANCEMENT EDGE ENDORSEMENT The Business Auto Enhancement Edge Endorsement is an optional endorsement that provides coverage enhancements. The following is a summary of broadened coverages provided by this endorsement. No coverage is provided by this summary, refer to the following endorsement for changes in your policy. SUMMARY OF COVERAGES PAGE Accidental Airbag Deployment Coverage 5 Audio, Visual and Data Electronic Equipment – Limit Amended 5 Auto Loan/Lease Gap Coverage 5 Blanket Additional Insured 3 Blanket Waiver of Subrogation 5 Broadened Definition of Insured includes: •Newly Acquired Organizations for up to 180 Days 2 •Employees as Insureds 2 •Subsidiaries in Which You Own 50% or More 2 Deductible Waiver for Glass Repair 4 Employee Hired Auto 6 Fellow Employee Coverage 3 Hired Auto Physical Damage Coverage 3, 6 Knowledge of Accident, Claim, Suit or Loss 5 Loss Of Use Expenses - Amended 3 Personal Effects 3 Primary and Noncontributory If Required by a Written Contract or Written Agreement 6 Rental Reimbursement Coverage 4 Supplementary Payments - Amended: •Bail Bonds up to $5,000 3 •Loss of Earnings up to $500/Day 3 Temporary Substitute Vehicle Physical Damage 2 Towing 3 Transportation Expense Limits – Amended 3 Unintentional Failure to Disclose Hazards 6 WN CA 80 06 19 WN CA 80 06 19 Includes copyrighted material of Insurance Services Office, with its permission Page 2 of 6 THIS ENDORSEMENT CHANGES THE POLICY. PLEASE READ IT CAREFULLY. BUSINESS AUTO ENHANCEMENT EDGE ENDORSEMENT This endorsement modifies the insurance provided under the following: BUSINESS AUTO COVERAGE FORM With respect to the coverage provided by this endorsement, the provisions of the Coverage Form apply unless modified by this endorsement. The SECTIONS of the Business Auto Coverage Form identified in this endorsement will be amended as shown below. SECTION I – COVERED AUTOS COVERAGE AMENDMENTS A.Temporary Substitute Vehicle Physical Damage SECTION I – COVERED AUTOS, C. Certain Trailers, Mobile Equipment And Temporary Substitute Autos is amended by adding the following: If a covered “auto” you own is out of service because of its: a.Breakdown; b.Repair; c.Servicing; d.“Loss”, or e.Destruction; the Physical Damage Coverages provided by the Business Auto Coverage Form for that disabled covered “auto” are extended to any “auto” you do not own while used with the permission of its owner as a temporary substitute for the covered “auto” that is out of service. SECTION II – COVERED AUTOS LIABILITY COVERAGE AMENDMENTS A.Who Is An Insured SECTION II – COVERED AUTOS LIABILITY COVERAGE, A. Coverage, 1. Who Is An Insured is amended to add: d.Any legally incorporated subsidiary of yours in which you own more than 50% of the voting stock on the effective date of this coverage form. However, “insured” does not include any subsidiary of yours that is an “insured” under any other automobile liability policy or would be an “insured” under such policy but for termination of such policy or the exhaustion on such policy’s limits of insurance. e.Any organization which is newly acquired or formed by you and over which you maintain majority ownership. However, coverage under this provision: (1)is afforded only for the first 180 days after you acquire or form the organization or until the end of the policy period, whichever comes first; (2)does not apply to “bodily injury” or “property damage” that results from an “accident” that occurred before you formed or acquired the organization; (3)does not apply to any newly acquired or formed organization that is a joint venture or partnership; and (4)does not apply to an “insured” under any other automobile liability policy or would be an “insured” under such a policy but for ter- mination of such policy or the exhaustion of such policy’s limits of insurance. f.Any “employee” of yours is an “insured” while using a covered “auto” you don’t own, hire or borrow in your business or your personal affairs. g.Any “employee” of yours is an “insured” while operating a covered “auto” hired or rented under a contract or agreement in the “employee’s” name, with your permission, while performing duties related to the conduct of your business. WN CA 80 06 19 Includes copyrighted material of Insurance Services Office, with its permission Page 3 of 6 B.Blanket Additional Insured SECTION ll – COVERED AUTOS LIABILITY COVERAGE, A. Coverage, 1. Who Is An Insured, paragraph c. is amended to add the following: Any person or organization who is required under a written contract or agreement between you and that person or organization, that is signed and executed by you before the “bodily injury” or “property damage” occurs and that is in effect during the policy period, to be named as an additional insured is an “insured” for Liability Coverage, but only for damages to which this insurance applies and only to the extent that persons or organization qualifies as an “insured” under the Who Is An Insured provision contained in Section ll. C.Liability Coverage Extensions – Supplementary Payments SECTION II – COVERED AUTOS LIABILITY COVERAGE, A. Coverage, 2. Coverage Extensions, a. Supplementary Payments is amended by replacing subparagraphs (2) and (4) with the following: (2)Up to $5,000 for cost of bail bonds (including bonds for related traffic law violations) required because of an “accident” we cover. We do not have to furnish these bonds. (4)All reasonable expenses incurred by the “insured” at our request, including actual loss of earnings up to $500 a day because of time off from work. D.Fellow Employee Coverage SECTION II – COVERED AUTOS LIABILITY COVERAGE, B. Exclusions, 5. Fellow Employee, the following is added: Co-Employee Lawsuit Defense Cost Reimbursement If a suit seeking damages for “bodily injury” to any fellow “employee” of the “insured” arising out of and in the course of the fellow “employee’s” employment or while performing duties related to the conduct of your business, or a suit seeking damages brought by the spouse, child, parent, brother or sister of that fellow “employee”, is brought against you, we will reimburse reasonable costs that you incur in the defense of such matters. Any reimbursement made pursuant to this sub-section will be in addition to the limits of liability set forth in the Declarations. SECTION III – PHYSICAL DAMAGE COVERAGE AMENDMENTS A.Towing SECTION III – PHYSICAL DAMAGE COVERAGE, A. Coverage, 2. Towing, is amended by adding the following: 2.Towing We will pay up to $250 for towing and labor costs incurred each time a covered “auto” is disabled. However, the labor must be performed at the place of disablement. This $250 limit is reduced by any applicable towing limit shown in the declarations. Regardless of the number of disablements, the maximum amount we will pay under this endorsement for all towing and labor costs combined during any one year is $2,500. B.Transportation Expense – Limits Amended SECTION III – PHYSICAL DAMAGE COVERAGE, A. Coverage, 4. Coverage Extensions, a. Trans- portation Expenses is amended by replacing $20 per day/$600 maximum limit with $50 per day/$1,000 maximum. C.Hired Auto Physical Damage – Loss Of Use Expenses – Limits Amended SECTION III – PHYSICAL DAMAGE COVERAGE, A. Coverage, 4. Coverage Extensions, b. Loss of Use Expenses is amended by replacing the $20 per day/$600 maximum limit with $50 per day/$750 maximum limit. D.Personal Effects Coverage SECTION lll – PHYSICAL DAMAGE COVERAGE, A. Coverage, 4. Coverage Extensions is amended by adding the following: c.Personal Effects We will pay up to $500 for “loss” to personal effects, which are: (1)Owned by an “insured”; and (2)In or on your covered “auto.” This coverage applies only in the event of the total theft of your covered “auto.” No deductible applies to this coverage WN CA 80 06 19 Includes copyrighted material of Insurance Services Office, with its permission Page 4 of 6 E.Glass Repair – Deductible Waiver SECTION III – PHYSICAL DAMAGE COVERAGE, A. Coverage, 3. Glass Breakage – Hitting A Bird Or Animal – Falling Objects Or Missiles, is amended by adding the following: No deductible will apply to glass breakage if such glass is repaired, in a manner acceptable to us, rather than replaced. F.Hired Auto Physical Damage SECTION III – PHYSICAL DAMAGE COVERAGE, A. Coverage is amended by adding the following: 5.Hired Auto Physical Damage If hired “autos” are covered “autos” for Liability Coverage and if Comprehensive, Specified Causes of Loss, or Collision coverages are pro- vided under this coverage form for any “auto” you own, then the Physical Damage Coverages provided are extended to “autos” you hire of like kind and use, subject to the following: a.The most we will pay for any one “loss” is $50,000 or the actual cash value or cost to repair or replace, whichever is less, minus a deductible; b.The deductible will be equal to the largest deductible applicable to any owned “auto” for that coverage. Any Comprehensive deducti- ble does not apply to “loss” caused by fire or lightening; c.Hired Auto Physical Damage coverage is excess over any other collectible insurance; and d.Subject to the above limit, deductible and excess provisions we will provide coverage equal to the broadest coverage applicable to any covered “auto” you own. If a limit for Hired Auto Physical Damage is indicated in the Declarations, then that limit replaces, and is not added to, the $50,000 limit indicated above. G.Rental Reimbursement SECTION III – PHYSICAL DAMAGE COVERAGE A. Coverage, is amended by adding the following: 6.Rental Reimbursement This coverage applies only to a covered “auto” of the private passenger or light truck type as follows: a.We will pay for rental reimbursement expenses incurred by you for the rental of a private passenger or light truck type “auto” because of “loss” to a covered private pas- senger or light truck type “auto”. Payment applies in addition to the otherwise applicable amount of each coverage you have on a covered private passenger or light truck type “auto.” No deductibles apply to this coverage. b.We will pay only for those expenses incurred during the policy period beginning 24 hours after the “loss” and ending, regardless of the policy’s expiration, with the lesser of the fol- lowing number of days: (1)The number of days reasonably required to repair or replace the covered private passenger or light truck type “auto”. If “loss” is caused by theft, this number of days is added to the number of days it takes to locate the covered private passenger or light truck type “auto” and return it to you; or (2)30 days. c.Our payment is limited to the lesser of the following amounts: (1)Necessary and actual expenses incurred, or (2)$50 per day, up to a maximum of $1,000. WN CA 80 06 19 Includes copyrighted material of Insurance Services Office, with its permission Page 5 of 6 d.This coverage does not apply while there are spare or reserve private passenger or light truck type “autos” available to you for your operations. e.If “loss” results from the total theft of a covered “auto” of the private passenger or light truck type, we will pay under this cover - age only that amount of your rental reim - bursement expenses which is not already provided for under SECTION III – PHYSICAL DAMAGE COVERAGE, A. Coverage, 4. Coverage Extensions. For the purposes of this Rental Reimbursement coverage, light truck is defined as a truck with a gross vehicle weight of 10,000 lbs. or less as defined by the manufacturer as the maximum loaded weight the auto is designed to carry. H.Accidental Airbag Deployment Coverage SECTION III – PHYSICAL DAMAGE COVERAGE, A. Coverage is amended by adding the following: 7.Accidental Airbag Deployment Coverage We will pay to reset or replace factory installed airbag(s) in any covered “auto” for accidental discharge, other than discharge due to a collision loss. This coverage is applicable only if comprehensive coverage applies to the covered “auto”. This coverage is excess over any other collectible insurance or reimbursement by manufacturer’s warranty. I.Auto Loan/Lease Gap Coverage SECTION III PHYSICAL DAMAGE COVERAGE, Item A., Coverage, is amended by adding the following: 8.Auto Loan/Lease Gap Coverage This coverage applies only to a covered “auto” described or designated in the Schedule or in the Declarations as including physical damage coverage. In the event of a covered total “loss” to a covered “auto” described or designated in the Schedule or in the Declarations, we will pay any unpaid amount due on the lease or loan for a covered “auto” less: a.The amount paid under the Physical Damage Coverage Section on the policy; and b.Any: (1)Overdue lease/loan payments at the time of the “loss”; (2)Financial penalties imposed under a lease for excessive use, abnormal wear and tear or high mileage; (3)Security deposits not returned by the lessor; (4)Costs for extended warranties, Credit Life Insurance, Health, Accident or Disability Insurance purchased with the loan or lease; and (5)Carry-over balances from previous loans or leases. J.Audio, Visual and Data Electronic Equipment – Limit Amended SECTION III - PHYSICAL DAMAGE COVERAGE, C. Limits of Insurance, 1.b. is amended by replacing the $1,000 limit with a $2,500 limit. SECTION IV – BUSINESS AUTO CONDITIONS AMENDMENTS A.Duties In The Event Of Accident, Claim, Suit Or Loss Amended SECTION IV – BUSINESS AUTO CONDITIONS, A. Loss Conditions, 2. Duties In The Event Of Accident, Claim, Suit Or Loss, a. is amended by adding the following: This condition applies only when the “accident” or “loss” is known to: (1)You, if you are an individual; (2)A partner, if you are a partnership; (3)An executive officer or insurance manager, if you are a corporation; or (4)A member or manager, if you are a limited liability company. But this section does not amend the provisions relating to notification of police, protection or exami- nation of the property which was subject to the “loss”. B.Blanket Waiver of Subrogation Section IV – BUSINESS AUTO CONDITIONS, A. Loss Conditions, 5. Transfer of Rights of Recovery Against Others to Us, is amended by adding the following exception: However, we waive any right of recovery we ma y have against any person or organization to the extent required of you by a written contract signed and executed prior to any “accident” or “loss”, provided that the “accident” or “loss” arises out of operations contemplated by such contract. The waiver applies only to the person or organization designated in such contract. WN CA 80 06 19 Includes copyrighted material of Insurance Services Office, with its permission Page 6 of 6 C.Unintentional Failure to Disclose Hazards SECTION IV – BUSINESS AUTO CONDITIONS, B. General Conditions, 2. Concealment, Misrepre- sentation Or Fraud, is amended by adding the following paragraph: If you unintentionally fail to disclose any hazards existing at the inception date of the policy, or during the policy period in connection with any additional hazards, we will not deny coverage under this Cov- erage Part because of such failure. D.Employee Hired Auto SECTION IV – BUSINESS AUTO CONDITIONS, B. General Conditions, 5. Other Insurance, paragraph b. is deleted and replace by the following: b.For Hired Auto Physical Damage Coverage, the following are deemed to be a covered “auto” you own: (1)Any covered “auto” you lease, hire, rent or borrow. (2)Any covered “auto” hired or rented by your “employee” under a contract in that individual “employee’s” name, with your permission, while performing duties related to the conduct of your business. However, any “auto” that is leased, hired, rented or borrowed with a driver is not a covered “auto”. E.Primary and Noncontributory If Required By Written Contract or Written Agreement SECTION IV – BUSINESS AUTO CONDITIONS, B. General Conditions, 5. Other Insurance c., the following is added and supersedes any provision to the contrary: This Coverage Form’s Covered Autos Liability Coverage is primary to and will not seek contribution from any other insurance available to an “insured” under your policy provided that: (1)Such “insured” is a Named Insured under such other insurance; and (2)You have agreed in writing in a contract or agreement that this insurance would be primary and would not seek contribution from any other insurance available to such “insured”. COMMERCIAL LIABILITY UMBRELLA WN CU 114 07 15 WN CU 114 07 15 Page 1 of 1 Includes copyrighted material of the Insurance Service Office, Inc., with its permission. THIS ENDORSEMENT CHANGES THE POLICY. PLEASE READ IT CAREFULLY. WHO IS AN INSURED AMENDED This endorsement modifies insurance provided under the following: COMMERCIAL LIABILITY UMBRELLA COVERAGE PART With respect to SECTION II – WHO IS AN INSURED, Paragraph 3. is replaced by the fol- lowing: 3.Any additional insured under any policy of “underlying insurance” will automati- cally be an insured under this insurance. Subject to Section III – Limits Of In- surance, if coverage provided to the additional insured is required by a con- tract or agreement, the most we will pay on behalf of the additional insured is: a.The minimum amount of insurance required by the contract or agree- ment, less any amounts payable by any “underlying insurance; or b.The amount of insurance available under the applicable Limits of Insur- ance shown in the Declarations; whichever is less. Additional insured coverage provided by this insurance will not be broader than coverage provided by the “underlying insurance”. WN CU 116 04 18 THIS ENDORSEMENT CHANGES THE POLICY. PLEASE READ IT CAREFULLY. DESIGNATED PROJECT(S) – AGGREGATE LIMIT This endorsement modified insurance provided under the following: COMMERCIAL LIABILITY UMBRELLA COVERAGE PART SCHEDULE DESIGNATED PROJECT(S) A.The Designated Project Aggregate Limit is the most we will pay for the sum of all “ultimate net loss” in excess of the “retained limit” under COV- ERAGE A. BODILY INJURY AND PROPERTY DAMAGE LIABILITY, which can be attributed solely to ongoing operations at a single designated "project" shown in the Schedule above, regardless of the number of: 1.Insureds; 2.Claims made or "suits" brought; or 3.Persons or organizations making claims or bringing "suits". B.A separate Designated Project Aggregate Limit ap- plies to each designated "project", and that limit is equal to the amount of the Aggregate Limit shown in the Declarations. C.The Designated Project Aggregate Limit does not apply to “ultimate net loss” arising out of "bodily in- jury" or "property damage" included in the "prod- ucts-completed operations hazard" or arising out of the ownership, maintenance or use of a "covered auto ." D.Any payments made under Paragraph A. of this endorsement shall reduce the Designated Project Aggregate Limit for that designated "project". Such payments shall not reduce the Aggregate Limit shown in the Declarations nor shall they reduce any other Designated Project Aggregate Limit for any other designated "project" shown in the Sched- ule above. E.The Each Occurrence limit shown in the Declara- tions is the most we will pay for "ultimate net loss" in excess of the “retained limit” under Coverage A because of all "bodily injury" and "property dam- age" arising out of any one "occurrence". F.For all “ultimate net loss” under COVERAGE A., which cannot be attributed solely to ongoing oper- ations at a single designated "project" shown in the Schedule above: 1.Any payments made for “ultimate net loss” under COVERAGE A. shall reduce the amount available under the Aggregate Limit; and 2.Such payments shall not reduce any Desig- nated Project Aggregate Limit. WN CU 116 04 18 Includes copyrighted material of Insurance Services Office, Inc., with its permission.Page 1 of 2 PER WRITTEN CONTRACT OR AGREE- MENT WHERE YOU AGREED TO PRO- VIDE A SEPARATE GENERAL AGGRE- GATE LIMIT FOR EACH PROJECT G.The “Maximum Annual Aggregate Limit” is the most we will pay for the sum of all “ultimate net loss” under one or more Designated Project Ag- gregate Limits and Aggregate Limit. H.For the purposes of this endorsement, SECTION V - DEFINITIONS is amended by the addition of the following definitions: 1.“Maximum Annual Aggregate Limit” means an amount equal to two times the Aggregate Limit shown in the policy declarations. 2."Project” means an area at which you are per- forming operations pursuant to a contract or agreement, other than any premises, site or location which is or was at any time owned or occupied or managed by, or rented or loaned to you. I.The provisions of SECTION Ill - LIMITS OF IN- SURANCE not otherwise modified by this en- dorsement shall continue to apply. WN CU 116 04 18 Includes copyrighted material of Insurance Services Office, Inc., with its permission.Page 2 of 2 COMMERCIAL LIABILITY UMBRELLA WN CU 117 04 18 WN CU 117 04 18 Page 1 of 1 Includes copyrighted material of the Insurance Service Office, Inc., with its permission. THIS ENDORSEMENT CHA NGES THE POLICY. PLEASE READ IT CAREFULLY. PRIMARY AND NONCONTRIBUTORY – ADDITIONAL INSURED This endorsement modifies insurance provided under the following: COMMERCIAL LIABILITY UMBRELLA COVERAGE PART The following is added to Section IV – Conditions – 5. Other Insurance and supersedes any provision to the contrary: Primary And Noncontributory Insurance This insurance is primary to and will not seek contribution from any other insurance available to an additional insured under your policy provided that: (1)The additional insured is a Named Insured under such other insurance; and (2)You have agreed in writing in a contract or agreement that this insurance would be primary and would not seek contribution from any other insurance available to the additional insured. (3)The order of payment specified by this endorsement only applies to the extent permitted by law. The following is added to: SECTION II – LIMITS OF INSURANCE For the purposes of this endorsement only, we will not pay more on behalf of the additional insured and the lesser of: 1.The minimum limits of insurance required in a written contract on a primary and non-contributory basis for such additional insured, but only to the extent the required Limits of Insurance are in excess of the “underlying insurance,” or 2.The Limits of Insurance available after the payment of “ultimate net loss” on any insured’s behalf from any claim or “suit”. This provision is included within and does not act to increase the limit of insurance stated in the Declarations. Coverage will not be broader than the coverage provided by the underlying insurance listed in the “Schedule of Underlying Coverages.” This page has been left blank intentionally. This page has been left blank intentionally. 20. Washington State Prevailing Minimum Hourly Wage Rates Reference WASHINGTON STATE PREVAILING WAGE RATES FOR PUBLIC WORKS CONTRACTS REFERENCE The State of Washington Prevailing Wage Rates applicable for this public works contract, which is located in _King_ County, may be found at the following website address of the Department of Labor and Industries: https://secure.lni.wa.gov/wagelookup/ Based on the bid submittal deadline for this project, the applicable effective date for prevailing wages for this project is March 25, 2025. A copy of the applicable prevailing wages rates is also available for viewing at the office of the Owner, located at _Renton City Hall, 1055 South Grady Way, Renton, Washington. Upon request, the Owner will mail a hard copy of the applicable prevailing wage rates for this project. NOTICE: If the prime contract is at a cost of over one million dollars ($1,000,000.00), RCW 39.04.370 requires you to complete the EHB 2805 (RCW 39.04.370) Addendum and attach it to your Affidavit of Wages of Paid when your work on the project concludes. This is only a notice. The EHB 2805 Addendum is not submitted with this Intent. F700-029-000 Statement of Intent to Pay Prevailing Wages 03-2011 Your Company Information Awarding Agency Information Your Company Name Project Name Contract Number Your Address Awarding Agency City State Zip+4 Awarding Agency Address Your Contractor Registration Number Your UBI Number City State Zip+4 Your Industrial Insurance Account Number Awarding Agency Contact Name Phone Number Your Email Address (required for notification of approval) Your Phone Number County Where Work Will Be Performed City Where Work Will Be Performed Additional Details Contract Details Your Expected Job Start Date (mm/dd/yyyy) Bid Due Date (Prime Contractor’s) Award Date (Prime Contractor’s) Job Site Address/Directions Total Dollar Amount of Your Contract (including sales tax) or indicate time and materials, if applicable. $ T&M ARRA Funds Weatherization or Energy Efficient Funds Does this project utilize American Recovery and Reinvestment Act (ARRA) funds? Yes No Does this project utilize any weatherization or energy efficiency upgrade funds (ARRA or otherwise)? Yes No Prime Contractor’s Company Information Hiring Contractor’s Company Information Prime Contractor’s Company Name Prime Contractor’s Intent Number Hiring Contractor’s Company Name Prime Contractor’s Registration Number Prime Contractor’s UBI Number Hiring Company’s Contractor Registration Number Hiring Contractors UBI Number Employment Information Do you intend to use ANY subcontractors? Yes No Will employees perform work on this project? Yes No Will ALL work be subcontracted? Yes No Do you intend to use apprentice employees? Yes No Number of Owner/Operators who own at least 30% of the company who will perform work on this project: None (0) One (1) Two (2) Three (3) Crafts/Trades/Occupations – (Do not list apprentices. They are listed on the Affidavit of Wages Paid only.) If an employee works in more than one trade, ensure that all hours worked in each trade are reported below. For additional crafts/trades/occupations please use Addendum A. Number of Workers Rate of Hourly Pay Rate of Hourly Usual (“Fringe”) Benefits Signature Block I hereby certify that I have read and understand the instructions to complete this form and that the information, including any addenda, are correct and that all workers I employ on this Public Works Project will be paid no less than the Prevailing Wage Rate(s) as determined by the Industrial Statistician of the Department of Labor and Industries. Print Name: Print Title: Signature: Date: For L&I Use Only Approved by signature of the Department of Labor and Industries Industrial Statistician This form must be typed or printed in ink. Fill in all blanks or the form will be returned for correction (see instructions). Please allow a minimum of 10 working days for processing. Once approved, your form will be posted online at https://fortress.wa.gov/lni/pwiapub/SearchFor.asp Department of Labor and Industries Prevailing Wage (360) 902-5335 www.lni.wa.gov/TradesLicensing/PrevWage STATEMENT OF INTENT TO PAY PREVAILING WAGES Public Works Contract $40.00 Filing Fee Required Intent ID # (Assigned by L&I)_______________ F700-007-000 Affidavit of Wages Paid 06-2014 Department of Labor and Industries Prevailing Wage Program (360) 902-5335 www.Lni.wa.gov/TradesLicensing/PrevWage/default.asp This form must be typed or printed in ink. Fill in ALL blanks or the form will be returned for correction (see instructions). Please allow a minimum of 10 business days for processing. Once approved, your form will be posted online at: https://fortress.wa.gov/lni/wagelookup/searchforms.aspx Affidavit of Wages Paid Public Works Contract $40.00 Filing Fee Required* *Exemption may apply. See instruction 9. Affidavit ID # (Assigned by L&I): # Your Company Information Awarding Agency Information Your Company Name Project Name Contract Number Your Company Address Awarding Agency City State Zip+4 - Awarding Agency Address Your Contractor Registration Number Your UBI Number City State Zip+4 - Your Industrial Insurance Account Number Awarding Agency Contact Name Phone Number Your Email Address (required for notification of approval) Your Phone Number County Where Work Was Performed City Where Work Was Performed Additional Details Contract Details Your Job Start Date (mm/dd/yyyy) / / Your Date Work Completed (mm/dd/yyyy) / / Bid Due Date (Prime Contractor’s) Award Date (Prime Contractor’s) Job Site Address/Directions Your Approved Intent ID # Indicate Total Dollar Amount of Your Contract (including sales tax). $ EHB 2805 (RCW 39.04.370) – Is the Prime Contractor’s contract at a cost of over one million dollars ($1,000,000)? No Yes If “Yes” to the EHB 2805 question and the Award Date is 9/1/2010 or later you must complete and submit the EHB 2805 (RCW 39.04.370) Addendum. ARRA Funds Weatherization or Energy Efficient Funds Does this project utilize American Recovery and Reinvestment Act (ARRA) funds? Yes No Does this project utilize any weatherization or energy efficiency upgrade funds (ARRA or otherwise)? Yes No Prime Contractor’s Company Information Hiring Contractor’s Company Information Prime Contractor’s Company Name Hiring Contractor’s Company Name Prime Contractor’s Registration Number Prime Contractor’s UBI Number Hiring Contractor’s Registration Number Hiring Contractor’s UBI Number Employment Information Did you use ANY subcontractors? Yes (Addendum B Required) No Did employees perform work on this project? Yes No Was ALL work subcontracted? Yes (Addendum B Required) No Did you use apprentice employees? Yes No Number of Owner/Operators who own at least 30% of the company who performed work on this project: You must list the First and Last Name(s) of any Owner/Operator performing work below None (0) One (1) Two (2) Three (3) List your Crafts/Trades/Occupations Below - For Journey Level Workers you must provide all of the information below. Owner/Operators - must provide their First and Last name no other information required. **Apprentices are not recorded below. You must use Addendum D to list Apprentices. Number of Workers Total # of Hours Worked Rate of Hourly Pay Rate of Hourly Usual (“Fringe”) Benefits Signature Block I hereby certify that I have read and understand the instructions to complete this form and that the information on the form and any addenda is correct and that all workers I employed on this Public Works Project were paid no less than the Prevailing Wage Rate(s) as determined by the Industrial Statistician of the Department of Labor and Industries. Print Name: Print Title: Signature: Date: For L&I Use Only Department of Labor and Industries APPROVED BY: Industrial Statistician Public Works Department SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE PROJECT SWP-27-4037 TRAFFIC CONTROL The City of Renton requires any contractor, firm, corporation, or other public/private agency to prepare a traffic control plan and obtain City’s approval of that plan when construction, repair, or maintenance work is to be conducted within the City’s right-of-way. The plan shall be consistent with the provisions found in the State of Washington Manual on Uniform Traffic Control Devices (MUTCD) for Streets and Highways, section 1-10.2(2) and the Contract Documents. Traffic Control Plan shall be submitted to the City for review at or prior to the Preconstruction Meeting. Traffic Control Standard Plans, application and requirements can be found in the City’s website at: https://www.rentonwa.gov/City-Services/Permit-Center/Traffic-Control-Plan Typical details for lane closures can be provided upon request. The Contractor shall be responsible for assuring that traffic control is installed and maintained in conformance to established standards. The Contractor shall continuously evaluate the operation of the traffic control plan and take prompt action to correct any problems that become evident during operation. See Special Provisions Section 1-10 and 1-07.23 for additional requirements. Note: The Applicant is responsible for compliance with all codes and regulations, whether or not described in this document. PUBLIC WORKS DEPARTMENT Page 1 of 6 | Published: 2/25/2025 Transportation Systems Division | 1055 South Grady Way, 5th Floor | Renton, WA 98057 | 425-430-7380 Website: rentonwa.gov TRAFFIC CONTROL PLAN APPLICATION Published: 2/25/2025 TRAFFIC CONTROL PLAN (TCP) MUST BE SUBMITTED TO PUBLIC WORKS TRANSPORTATION DIVISION FOR REVIEW/APPROVAL AT LEAST FIVE (5) WORKING DAYS BEFORE THE DATE OF WORK AND FOR TRAFFIC SIGNAL WORK WITHIN 150 FEET OF THE INTERSECTION AT LEAST FIFTEEN (15) WORKING DAYS BEFORE THE DATE OF WORK. FOR PURPOSES OF THIS APPLICATION, WORKING DAYS ARE DEFINED AS MONDAY THRU FRIDAY, AND EXCLUDING CITY HOLIDAYS. The City of Renton requires any contractor, firm, corporation, or other public/private agency to prepare a Traffic Control Plan (TCP) and obtain City's approval of that plan when construction, repair, or maintenance work is to be conducted within the City's right-of-way. 1. Fill out the Traffic Control Plan (TCP) Application form and prepare required submittal documents. 2. All TCPs must conform to all attached requirements. Failure to do so may be subject to resubmittal. 3. Submit Application via email to TCP@rentonwa.gov with the subject line “TCP Application – [Project Name].” 4. Resubmittal may be required for TCPs that are incomplete and do not display proper requirements as described in the guidelines. Additional review time may be needed. By signing, I certify that the information on this application and within the submittal documents are accurate to the best of my knowledge and I acknowledge and have read all the requirements and guidelines on this application. Applicant’s Signature Date Applicant’s Name (Print) Project Name: Permit #: Site Address: Work Date: From _____________ To _____________ Work Time: Start ______________ End ______________ Construction Company: Contact Name: Phone/Cell: _________________________ Business Address: City/State: Zip: ___________ Description of Work: 24 Hour Emergency Contact Name & Phone: Approval By: ______________________________________________ Date:____________________ PW/Transportation or CED/Development Engineering Division Page 2 of 6 | Published: 2/25/2025 This Page Intentionally Left Blank Page 3 of 6 | Published: 2/25/2025 APPLICANT AGREES TO ALL THE FOLLOWING REQUIREMENTS: GENERAL • Applicant is responsible for compliance with all traffic regulations of the City of Renton (City) and the State of Washington, including codes and regulations not described in this application. • Work Zone Traffic Control shall be in accordance with Manual on Uniform Traffic Control Devices (MUTCD) and shown by a traffic control plan layout or reference to Washington State Department of Transportation (WSDOT) traffic control plans. • Any lane or street closures not in conformance with the approved Traffic Control Plan (TCP) and/or without notification of emergency services may result in receiving a citation for violation of R.C.W. 47.36.200 Signs or Flaggers at thoroughfare work sites and R.C.W. 9A.36.050 Reckless Endangerment, and other applicable State and City codes. • Indemnify and hold harmless the City from any and all claims, actions, and judgments, including all costs of defense and attorney’s fees incurred in defending against same, arising from and related to implementation of the approved TCPs including claims arising from towing of private vehicles and the acts of Applicant’s agents and employees. • Applicant must comply with all conditions of the application. • The City shall be entitled, in its reasonable discretion, to settle claims prior to suit or judgment, and in such event shall indemnify and hold harmless the City for any such claims paid, including the City’s reasonable attorney’s fees and litigation costs incurred resulting from such claim. • In the event any claim or suit is brought against City within the scope of this application, Applicant is responsible to pay for legal counsel chosen by the City to defend against same. • No more than one TCP shall be in use at any given time for a single project. If multiple TCPs are submitted for review and approval at the same time, the TCPs shall be clearly labeled as separate plans and include construction phasing and sequencing. • Previously approved TCPs cannot be combined into a new TCP without review and approval by the City. • Expired TCP is not valid and shall not be used. Applicant shall resubmit the expired TCP for approval with the updated date and time and/or any changes to TCP. • Applicant must have the approved TCP prior to commencing the work. • Approved TCP must be at the work site during work hours. • Signage shall be used to warn motorcyclists/bicyclists of the potential hazards on any uneven surfaced or slippery road conditions during work and non-work hours. • Any vehicle, equipment, barricade, or portable tow-away sign used within the work area must display a company logo or any legally acceptable sign showing the company name, address, and telephone number at a conspicuous place on the vehicle or equipment. • At signalized intersections, vehicle detection shall always remain operational, unless approved in this TCP and notified Transportation Signal Maintenance prior to commencing work. If damage occurs to existing vehicle detection that is to remain, it is Applicant’s responsibility to replace with video vehicle detection equipment that meets current City’s standards at Applicant’s expense. • When not in use, temporary traffic control devices shall be removed or covered immediately. It is the Applicant’s responsible to cover any temporary traffic control devices when not applicable for the construction activities. Similarly, when work is suspended for short periods of time, traffic control devices that are no longer necessary shall be removed or covered. If deemed abandoned, City crews will remove and may store them at the City’s maintenance shop (3555 NE 2nd Street) for up to sixty (60) days. The City is not responsible for any private property from City assets and identifying the property owner. • Applicant is responsible to maintain existing pedestrian accessible routes during work and non-work hours. At intersections, the work on pedestrian facilities shall be limited to one (1) corner at a time, with the least possible inconvenience or delay to pedestrians. Pedestrian pushbuttons shall remain accessible at all times, unless approved pedestrian accessible detour(s) are provided. Accessibility to existing or temporary Page 4 of 6 | Published: 2/25/2025 pedestrian pushbuttons shall not be impaired. Deficiencies caused by Applicant’s operations shall be repaired at Applicant’s expense. • Applicant shall provide complete assistance and accommodation from a dedicated pedestrian escort to all kinds of pedestrian traffic when sidewalk or walkway is impeded to safely redirect pedestrians around a work zone. • Driveway and alley access shall be maintained at all times, also see RMC Chapters 9 and 10 for Street Closure and Street Excavation for details. Applicant is responsible for coordinating with the property owners and/or residents prior to commencement of the work. • Pavement excavation shall be limited to a maximum of one travel lane at a time unless otherwise approved. • Accessibility for emergency vehicles shall be maintained at all times. PUBLIC OUTREACH • Applicant must notify Transportation Signal Maintenance (425-430-7423) and City inspector (425-430- 7203) at least twenty-four (24) hours before commencing work (lane shift/closure or near a signal) affecting the vehicle detection. • Applicant shall notify emergency services (253-852-2121) twenty-four (24) hours before any street closures or lane closures. • Applicant shall call Renton School District (425-204-4455) or any public/private agency, including public transit, to be affected by a temporary lane or road closure a minimum of five (5) working days (excluding weekends and holidays) prior to starting any work. • Applicant shall coordinate with King County Metro Transit Construction Information Center (206-477-1140 or construction.coord@kingcounty.gov) for any construction or installation activities affecting transit operations or facilities. Notification information and guidelines can be found at: https://kingcounty.gov/en/dept/metro/about/contractor-resources/transit-system-impacts. WORKING DAYS AND TIMES • Normal working days are Monday through Friday. Work on holidays, weekends or at night shall not occur without City’s approval. For work times between 10:00 p.m. and 7:00 a.m., see Night Work section below for details. • Work time begins when any street or travel lane is fully or partially closed. This includes set up and removal within the traveled way. • If the City determines the closure hours adversely affect traffic during the work, the City may require to adjust or reduce the working hours accordingly. Reduced work hours may be required by the City to minimize traffic impacts for any work located near a school during pick-up and drop-off times or on an arterial street. (See WSDOT Functional Classification Map: https://www.wsdot.wa.gov/data/tools/geoportal/?config=FunctionalClass) • Applicant may request the City for consideration of extended or modified working hours. Such request must be approved by the City before changing hours of work. CLOSURES • All closure hours and days are subject to local permit and ordinance conditions (such as noise ordinances). More information can be found on https://www.rentonwa.gov/City-Services/Permit-Center. Total street closure lasting more than twenty-four (24) hours is subject to City Council authorization per Section 9-9 of the Renton Municipal Code (RMC). • Road closure notice – Applicant must install Portable Changeable Message Sign (PCMS) boards no less than five (5) working days in advance of effective date and time, not including holidays, at location(s) as identified in the TCP. Other methods of displaying the messages shall be approved by the City. Page 5 of 6 | Published: 2/25/2025 • Road closure notice messages must include at least the following: ROAD WILL BE CLOSED MONTH/DAY – MONTH/DAY _AM - _PM • Road and/or sidewalk closure must be evaluated by the City with respect to both the necessity as well as the impact of the closure to the public. Applicant shall submit detour plans for road closures to accommodate both motorized and non-motorized users, including accessible pedestrian route(s). Road closures shall require additional temporary traffic control including advance notification, approach and detour signage. • Applicant is responsible to temporarily remove the flags and install bags over the flag holders for any work requiring the temporary closure of a crosswalk equipped with pedestrian flags. Applicant shall ensure the bags remain intact and shall replace damaged bags as needed or determined necessary by the City of Renton inspector. For any misplaced or lost flags, Applicant is responsible to replace at Applicant’s own expense. Upon restoration of the crosswalk, Applicant shall remove the bags and return all flags to the holders. Inventory of pedestrian flags must be submitted to the City inspector and reported to City of Renton Transportation Signal Maintenance (425-430-7423) prior to removal. UNIFORMED POLICE OFFICERS (UPO) / FLAGGERS • Any construction activities within one hundred and fifty (150) feet of a signalized intersection shall require Uniformed Police Officer(s) (UPO) at the traffic signal, unless otherwise approved in this TCP and evaluated by City Transportation for the impacts of traffic signal operations and safety. • Flagger and sign placement are subject to revision by the City Inspector on site, if needed to address traffic or pedestrian safety or travel. • For TCPs that require the presence of UPO to manage vehicular traffic and pedestrians at signalized intersections, Applicant shall coordinate with Transportation Signal Maintenance (425-430-7423) at least twenty-four (24) hours in advance for any signal that will be placed in red flashing mode. Applicant shall notify Transportation Signal Maintenance when the intersection is back to the normal traffic signal operations. TEMPORARY TRAFFIC SIGNALS OR TRAFFIC SIGNAL MODIFICATION • Temporary traffic signal programming or modification requires a minimum fifteen (15) working days for each traffic signal controller to be programmed and tested by City Transportation staff before starting the work. The Start Date on this TCP shall reflect the time for temporary traffic signal programming or modification. TEMPORARY NO-PARKING • Applicant must post notice of date(s) and time(s) of Temporary No Parking Zone with signs at every hundred (100) feet at least seventy-two (72) hours in advance of effective date and time. • Applicant is responsible to show on the TCP the limits of Temporary No Parking Zone, identifying barricade locations for vacate parking or curb lane usage. The cover sheet of this approved TCP form must be attached to each Temporary No Parking Sign on the project site. • Two travel lanes (one for each approach) must be open at all times on arterial streets unless approved in this TCP. NIGHT WORK • Between the hours of 10 p.m. and 7 a.m., approved Noise Variance shall be required (See Section RMC 8-7- 8) for night work. Process may take up to twelve (12) weeks. More information can be found at https://www.rentonwa.gov/City-Services/Permit-Center/Land-Use-Development/Noise-Variance. • City may require night work for TCPs that have severe traffic impacts on arterial streets. Page 6 of 6 | Published: 2/25/2025 • Night work shall always be required if two lanes of traffic (One for each approach) cannot be maintained on an arterial street. • Night work shall be required if an evaluation of existing traffic volumes and patterns finds that any TCP will functionally reduce an arterial or high-volume collector street to only one lane of traffic. • The following configurations may require night work: Work at traffic signals that requires shifting one direction of traffic into a left turn pocket where a high volume of left turns occur. Work at traffic signals that requires shifting two directions of traffic into left turn pockets. Work at traffic signals that requires shifting high-volume left-turn movement into a through lane on a single approach to the intersection. Work at signals that requires shifting left-turning traffic into a through lane on multiple approaches to the intersection. • If City’s initial TCP review finds that night work is required, a pre-construction meeting is mandatory to confirm the extents of the work required, the duration of work, anticipated noise levels, and any potential alternatives to mitigate the impact of night work to adjacent residents prior to review and approval of the TCP. TRAFFIC CONTROL PLAN (TCP) FORMAT • TCP must be site and project specific. The TCP shall clearly indicate all existing transportation facilities impacted by work including roads, bike lanes, sidewalks, transit stops, and driveways. Typical drawings, taper tables and MUTCD illustrations, by themselves, are insufficient. • Each construction phase shall be provided with appropriate work zone traffic control. The impacts of utility relocation, traffic delays, detours and capacity restrictions must be considered and addressed. A suitable sequence of construction activities must be discussed with City Staff prior to fully developing TCPs based on the complexity of a project. • TCPs shall be clearly labeled as separate plans to identify the construction sequencing during each phase when more than one TCP layout is submitted. • TCP must be submitted with an electronic copy of TCP layout(s), on 11” X 17” paper size PDF format, which consist of: Map(s) showing the location of the project and work area. All fonts shall be legible and a minimum 10-point font size. All symbols of viewing or printing shall be clear and contrasting. All streets shall be labeled, and layout must include a north arrow and scale. Must show channelizing devices, signing, flagger locations, barricades, PCMS boards, etc. Show locations where the standard traffic control plans are applied. D R A W N B Y : E L E N A B R U N S T E I N APPROVED FOR PUBLICATION DATESTATE DESIGN ENGINEER Washington State Department of Transportation SHEET 1 OF 1 SHEETSHEET 1 OF 1 SHEET SINGLE LANE CLOSURE WITH ENCROACHMENT STANDARD PLAN K-24.20-00 SHEET 1 OF 1 SHEET FOR LOCAL AGENCY USE ONLY NOT FOR USE ON STATE ROUTES ST A TEOFWASHI NGT O N R EGISTEREDP R OFE S SIONAL ENGINEER 25335 THEO DORE J. TR EPA NI E R EXPIRES AUGUST 9, 2007 SIGN LOCATION CHANNELIZING DEVICES PROTECTIVE VEHICLE ~ RECOMMENDED LEGEND PCMS EXISTING EDGE STRIPE EXISTING LANE STRIPE TEMPORARY TRAFFIC CONTROL DEVICE ARROW PANEL PORTABLE CHANGEABLE MESSAGE SIGN LATERAL BUFFER ~ 4’ EXISTING LANE EXISTING SHOULDER 2’ ASECTION WORK AREATEMPORARY LANE ~ 12’ MIN. EXISTING LANEEXISTING SHOULDER ROAD WORK AHEAD END ROAD WORK 100’ WORK AREA B L X X W20-1 P C M S SEE NOTE 5 RIGHT LANE CLOSED AHEAD W20-5R X1 ROAD NARROWS W5-1 A G20-2A OR DOWNSTREAM TAPER TO SHOW END OF WORK AREA ~ SEE NOTE 6 SEE NOTE 2 W4-2L ~ COMPLIANCE DATE 12/23/13 1. 2. 3. 4. 5. NOTES 6. 7. 8. MINIMUM WEIGHT 15,000 LBS. (MAXIMUM WEIGHT SHALL BE IN ACCORDANCE WITH MANU- FACTURER RECOMMENDATION) TYPICAL PROTECTIVE VEHICLE WITH TMA (SEE NOTE 1) LOADED WEIGHT ROLL AHEAD STOPPING DISTANCE = 30 FEET MIN. (DRY PAVEMENT ASSUMED) 45 50 55 60 360 425 495 570 POSTED SPEED (MPH) LONGITUDINAL BUFFER SPACE = B LENGTH B (FEET) 1 4 YARD DUMP TRUCK, SERVICE TRUCK, FLAT BED, ETC. BUFFER DATA VEHICLE TYPE 25 30 35 155 200 250 40 305 25 30 35 40 45 50 55 540 550 600 550 605 660 660 720 POSTED SPEED (MPH) 10 11 12 MINIMUM TAPER LENGTH = L 60 65 70 (FEET) 450 495 500 780 840 LANE WIDTH (FEET) 125 165 180 205 225 245 270 294 320 105 115 150 --- -- 8040 POSTED SPEED (MPH) 50 / 70 IN TANGENT (FEET) IN TAPER (FEET) CHANNELIZING DEVICE SPACING 35 / 45 30 60 8040 POSTED SPEED (MPH) 50 / 70 IN TANGENT (FEET) IN TAPER (FEET) CHANNELIZING DEVICE SPACING 25 / 30 20 40 RURAL ROADS & URBAN ARTERIALS URBAN STREETS RURAL ROADS, URBAN ARTERIALS, RESIDENTIAL & BUSINESS DISTRICTS 25 MPH OR LESS 35 / 40 MPH 25 / 30 MPH 45 / 55 MPHRURAL ROADS 60 / 65 MPHRURAL HIGHWAYS 100’ 35/64 (2) 200’ 35/64 (2) 350’ 35/64 500’ 35/64 800’ 35/64 ALL SIGNS ARE BLACK ON ORANGE UNLESS DESIGNATED OTHERWISE SIGN SPACING = X (1) (1) ALL SIGN SPACING MAY BE ADJUSTED TO ACCOMMODATE AT-GRADE INTERSECTIONS, AND DRIVEWAYS. (2) THIS SIGN SPACING MAY BE REDUCED IN URBAN AREAS TO FIT ROADWAY CONDITIONS. A Protective Vehicle is recommended regardless if a Truck Mounted Attenuator (TMA) is available; a work vehicle may be used. When no TMA is used, the Protective Vehicle shall be strategically located to shield workers, with no specific Roll-Ahead Stopping Distance. Extend device taper (L/3) across shoulder ~ recommended. Portable Changeable Message Sign (PCMS) ~ recommended. Traffic Safety Drums for all tapers on high speed roadway ~ recommended. Transverse Devices in closed lane every 1000’ 35/64 ~ recommended. Channelizing Device spacing for the downstream taper option shall be 20’ O.C. Use advanced notice for any overwidth loads prior to lane closure for altenative routes if applicable ~ recommended. For signs size refer to Manual on Uniform Traffic Control Devices (MUTCD) and WSDOT Sign Fabrication Manual M55-05. Ken L. Smith 02-15-07 N O T E : T H I S P L A N I S N O T A L E G A L E N G I N E E R I N G D O C U M E N T B U T A N E L E C T R O N I C D U P L I C A T E . T H E O R I G I N A L , S I G N E D B Y T H E E N G I N E E R A N D A P P R O V E D F O R P U B L I C A T I O N , I S K E P T O N F I L E A T T H E W A S H I N G T O N S T A T E D E P A R T M E N T O F T R A N S - P O R T A T I O N . A C O P Y M A Y B E O B T A I N E D U P O N R E Q U E S T . APPROVED FOR PUBLICATION DATESTATE DESIGN ENGINEER Washington State Department of Transportation SHEET 1 OF 1 SHEETSHEET 1 OF 1 SHEET RURAL ROADS & URBAN ARTERIALS URBAN STREETS RURAL ROADS, URBAN ARTERIALS, RESIDENTIAL & BUSINESS DISTRICTS 25 MPH OR LESS 35 / 40 MPH 25 / 30 MPH 45 / 55 MPHRURAL ROADS 350’ 35/64 500’ 35/64 D R A W N B Y : E L E N A B R U N S T E I N 1. 2. 3. 4. NOTES ALL SIGNS ARE BLACK ON ORANGE UNLESS DESIGNATED OTHERWISE 8040 POSTED SPEED (MPH) 50 / 70 IN TANGENT (FEET) IN TAPER (FEET) CHANNELIZING DEVICE SPACING 35 / 45 30 60 8040 POSTED SPEED (MPH) 50 / 70 IN TANGENT (FEET) IN TAPER (FEET) CHANNELIZING DEVICE SPACING 25 / 30 20 40 END ROAD WORK G20-2A WORK AREA ROAD WORK AHEAD W20-1 X ROAD WORK AHEAD W20-1 X END ROAD WORK G20-2A W20-1 ROAD WORK AHEAD X RIGHT LANE TURN RIGHT MUST R3-7R B/W ROAD WORK AHEAD W20-1 X END ROAD WORK G20-2A SIGN SPACING = X 100’ 35/64 200’ 35/64 XX X X L L / 2 X R4-7 B/W SIGN LOCATION CHANNELIZING DEVICES LEGEND 25 30 10 11 12 LANE WIDTH (FEET) 125 165 180 105 115 150 35 40 POSTED SPEED (MPH) 205 225 245 270 294 320 45 50 55 540 550 600 550 605 660 450 495 500 MINIMUM TAPER LENGTH = L (FEET) OBLITERATED MARKING R3-2 R/W R3-2 R/W R3-2 R/W ARROW PANEL SEE N O T E 1 ( T Y P . ) THRU TRAFFIC MERGE LEFT W4-7 W4-2L ~ COMPLIANCE DATE 12/23/13 STANDARD PLAN K-32.80-00 INTERSECTION ~ HALF ROAD CLOSURE WITH LANE SHIFT SHEET 1 OF 1 SHEET FOR LOCAL AGENCY USE ONLY NOT FOR USE ON STATE ROUTES BARRICADE ~ TYPE 3 L 45 270 POSTED SPEED (MPH) LONGITUDINAL BUFFER SPACE = B LENGTH B (FEET) 25 30 35 120 40 1705585 B W20-5L LEFT LANE CLOSED AHEAD END ROAD WORK G20-2A 5. 6. 7. ALL SIGN SPACING MAY BE ADJUSTED TO ACCOMMODATE AT-GRADE INTERSECTIONS AND DRIVEWAYS. ST A TEOFWASHI NGT O N R EGISTEREDP R OFE S SIONAL ENGINEER 25335 THEO DORE J. TR EPA NI E R EXPIRES AUGUST 9, 2007 NO LEFT TURN signs are to be used if traffic volumes are too high or there is an operating signal. Close the left turn pocket if there is one on the side street. When turn prohibitions are implemented, two turn prohibition signs should be used, one on the near side and, space permitting, one on on the far side of the intersection. If the work space extends a crosswalk, the crosswalk should be closed (see Standard Plan K-34.20). Flashing Warning Lights (Type A per MUTCD) should be used, as needed, to mark barricades at night. Steady Burning Warning Lights (Type C per MUTCD) shall be used to mark channelizing devices at night. For long term projects conflicting pavement markings that are no longer applicable shall be removed or obliterated. Temporary markings shall be used. For signs size refer to Manual on Uniform Traffic Control Devices (MUTCD) and WSDOT Sign Fabrication Manual M55-05. N O T E : T H I S P L A N I S N O T A L E G A L E N G I N E E R I N G D O C U M E N T B U T A N E L E C T R O N I C D U P L I C A T E . T H E O R I G I N A L , S I G N E D B Y T H E E N G I N E E R A N D A P P R O V E D F O R P U B L I C A T I O N , I S K E P T O N F I L E A T T H E W A S H I N G T O N S T A T E D E P A R T M E N T O F T R A N S - P O R T A T I O N . A C O P Y M A Y B E O B T A I N E D U P O N R E Q U E S T . 02-15-07Ken L. Smith CITY OF RENTON, WASHINGTON SE 172nd Street Green Stormwater Infrastructure (GSI) Project SPECIAL PROVISIONS FUNDED IN PART BY THE WASHINGTON STATE DEPARTMENT OF ECOLOGY City of Renton ii February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions THIS PAGE INTENTIONALLY LEFT BLANK City of Renton iii February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Table of Contents INTRODUCTION TO THE SPECIAL PROVISIONS .................................................................. 1 1-01 DEFINITIONS AND TERMS ........................................................................................... 3 1-01.3 Definitions ............................................................................................................... 3 1-02 BID PROCEDURES AND CONDITIONS ....................................................................... 7 1-02.1 Prequalification of Bidders ...................................................................................... 7 1-02.1(1) Supplemental Qualifications Criteria ................................................................ 7 1-02.2 Plans and Specifications ......................................................................................... 7 1-02.4 Examination of Plans, Specifications, and Site of Work .......................................... 7 1-02.4(1) General ............................................................................................................ 7 1-02.4(2) Subsurface Information .................................................................................... 8 1-02.5 Proposal Forms ...................................................................................................... 8 1-02.6 Preparation of Proposal .......................................................................................... 8 1-02.6(1) Certification of Compliance with Wage Payment Statutes ................................ 9 1-02.7 Bid Deposit ............................................................................................................. 9 1-02.7(1) Bid Bond, Cashier’s Check, Postal Money Order ............................................10 1-02.9 Delivery of Proposal ...............................................................................................10 1-02.10 Withdrawing, Revising, or Supplementing Proposal ...............................................11 1-02.12 Public Opening of Proposals ..................................................................................11 1-02.13 Irregular Proposals ................................................................................................11 1-02.14 Disqualification of Bidders ......................................................................................13 1-02.15 Pre Award Information ...........................................................................................14 1-03 AWARD AND EXECUTION OF CONTRACT ................................................................15 1-03.1 Consideration of bids .............................................................................................15 1-03.2 Award of Contract ..................................................................................................15 1-03.3 Execution of Contract.............................................................................................16 1-03.4 Contract Bond ........................................................................................................16 1-03.7 Judicial Review ......................................................................................................17 1-04 SCOPE OF WORK ........................................................................................................18 1-04.2 Coordination of Contract Documents, Plans, Special Provisions Specifications, and Addenda ........................................................................................................................18 1-04.4 Changes ................................................................................................................18 1-04.4(1) Minor Changes ................................................................................................18 1-04.5 Procedure, Protest, and Dispute by the Contractor ................................................18 1-04.6 Variation in Estimated Quantities ...........................................................................18 1-04.8 Progress Estimates and Payments ........................................................................19 City of Renton iv February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 1-04.11 Final Cleanup ........................................................................................................19 1-04.12 Contractor-Discovered Discrepancies ....................................................................20 1-05 CONTROL OF WORK ..................................................................................................21 1-05.4 Conformity With and Deviation from Plans and Stakes ..........................................21 1-05.4(1) Contractor Supplied Surveying ........................................................................22 1-05.4(2) Contractor Provided As-Built Information ........................................................22 1-05.7 Removal of Defective and Unauthorized Work .......................................................23 1-05.10 Guarantees ............................................................................................................24 1-05.11 Final Inspection and Operational Testing ...............................................................25 1-05.11(1) Substantial Completion Date ...........................................................................25 1-05.11(2) Final Inspection and Physical Completion Date ...............................................25 1-05.11(3) Operational Testing .........................................................................................26 1-05.12 Final Acceptance ...................................................................................................26 1-05.13 Superintendents, Labor and Equipment of Contractor ...........................................26 1-05.14 Cooperation with Other Contractors .......................................................................27 1-05.15 Method of Serving Notices .....................................................................................27 1-05.16 Water and Power ...................................................................................................28 1-05.17 Oral Agreements ....................................................................................................28 1-05.18 Contractor's Daily Diary .........................................................................................28 1-06 CONTROL OF MATERIAL ...........................................................................................31 1-06.1(1) Approval of Materials Prior to Use ...................................................................31 1-06.1(2) Request for Approval of Materials (RAM) ........................................................31 1-06.2 Acceptance of Material ..........................................................................................31 1-06.2(1) Samples and Tests for Acceptance .................................................................31 1-06.2(2) Statistical Evaluation of Materials for Acceptance ...........................................31 1-06.6 Recycled Materials ................................................................................................31 1-07 LEGAL RELATIONS AND RESPONSIBILITIES TO THE PUBLIC ..............................33 1-07.1 Laws to be Observed .............................................................................................33 1-07.2 State Sales Tax .....................................................................................................34 1-07.2 State Sales Tax .....................................................................................................34 1-07.2(1) State Sales Tax – Rule 171 .............................................................................34 1-07.2(2) State Sales Tax – Rule 170 .............................................................................34 1-07.2(3) Services ..........................................................................................................35 1-07.5 Environmental Regulations ....................................................................................35 1-07.5(1) General ...........................................................................................................35 1-07.6 Permits and Licenses.............................................................................................35 City of Renton v February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 1-07.7 Load Limits ............................................................................................................36 1-07.9 Wages ...................................................................................................................36 1-07.9(3) Apprentices ............................................................................................................36 1-07.9(5) Required Documents ......................................................................................40 1-07.11 Requirements for Non-Discrimination ....................................................................40 1-07.11(11) City of Renton Affidavit of Compliance ............................................................40 1-07.13 Contractor’s Responsibility for Work ......................................................................41 1-07.13(1) General ...........................................................................................................41 1-07.15 Temporary Water Pollution Prevention ..................................................................41 1-07.16 Protection and Restoration of Property ..................................................................44 1-07.16(1) Private/Public Property ....................................................................................44 1-07.16(2) Vegetation Protection and Restoration ............................................................45 1-07.16(3) Archaeological and Historical Objects .............................................................46 1-07.17 Utilities and Similar Facilities..................................................................................46 1-07.17(3) Site Specific Potholing ....................................................................................48 1-07.17(4) Interruption of Services ...................................................................................49 1-07.17(5) Resolution of Utility Conflicts ...........................................................................49 1-07.18 Insurance ...............................................................................................................50 1-07.18(1) General Requirements ....................................................................................50 1-07.18(2) Additional Insured ...........................................................................................51 1-07.18(3) Subcontractors ................................................................................................51 1-07.18(4) Verification of Coverage ..................................................................................52 1-07.18(5) Coverages and Limits .....................................................................................52 1-07.22 Use of Explosives ..................................................................................................54 1-07.23 Public Convenience and Safety .............................................................................55 1-07.23(1) Construction Under Traffic ..............................................................................55 1-07.23(2) Construction and Maintenance of Detours ......................................................56 1-07.24 Rights-of-Way ........................................................................................................56 1-07.28 Confined Space Entry ............................................................................................57 1-08 PROSECUTION AND PROGRESS ..............................................................................59 1-08.0 Preliminary Matters ................................................................................................59 1-08.0(1) Preconstruction Conference ............................................................................59 1-08.0(2) Hours of Work .................................................................................................60 1-08.0(3) Reimbursement for Overtime Work of Contracting Agency Employees ...........62 1-08.1 Subcontracting .......................................................................................................62 1-08.2 Assignment ............................................................................................................62 City of Renton vi February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 1-08.3 Progress Schedule ................................................................................................62 1-08.4 Notice to Proceed and Prosecution of the Work .....................................................64 1-08.5 Time For Completion .............................................................................................65 1-08.6 Suspension of Work ...............................................................................................66 1-08.7 Maintenance During Suspension ...........................................................................67 1-08.9 Liquidated Damages ..............................................................................................67 1-08.11 Contractor's Plant and Equipment ..........................................................................68 1-08.12 Attention to Work ...................................................................................................68 1-09 MEASUREMENT AND PAYMENT ...............................................................................69 1-09.1 Measurement of Quantities ....................................................................................69 1-09.2 Weighing Equipment ..............................................................................................70 1-09.2(1) General Requirements for Weighing Equipment .............................................70 1-09.2(5) Measurement ..................................................................................................70 1-09.3 Scope of Payment .................................................................................................70 1-09.6 Force Account .......................................................................................................71 1-09.7 Mobilization ............................................................................................................71 1-09.9 Payments...............................................................................................................72 1-09.9(1) Retainage .......................................................................................................74 1-09.9(2) Contracting Agency’s Right to Withhold and Disburse Certain Amounts .........74 1-09.9(3) Final Payment .................................................................................................76 1-09.11 Disputes and Claims ..............................................................................................77 1-09.11(2) Claims .............................................................................................................77 1-09.11(3) Time Limitation and Jurisdiction ......................................................................77 1-09.13 Claims and Resolutions .........................................................................................77 1-09.13(1) General ...........................................................................................................77 1-09.13(4) Venue for Litigation .........................................................................................79 1-09.14 Payment Schedule .................................................................................................79 1-09.14(1) Scope .............................................................................................................79 1-09.14(2) Bid Items .........................................................................................................79 1-10 TEMPORARY TRAFFIC CONTROL ........................................................................... 105 1-10.1 General ................................................................................................................ 105 1-10.2 Traffic Control Management................................................................................. 106 1-10.2(1) General ......................................................................................................... 106 1-10.3 Traffic Control Labor, Procedures, and Devices ................................................... 107 1-10.3(4) Traffic Control Constraints............................................................................. 110 1-10.4 Measurement ....................................................................................................... 111 City of Renton vii February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 1-10.5 Payment .............................................................................................................. 111 1-11 RENTON SURVEYING STANDARDS ........................................................................ 112 1-11.1 Description ........................................................................................................... 112 1-11.1(1) Responsibility for Surveys ............................................................................. 112 1-11.1(2) Survey Datum and Precision ......................................................................... 112 1-11.1(3) Subdivision Information ................................................................................. 112 1-11.1(4) Field Notes .................................................................................................... 113 1-11.1(5) Corners and Monuments ............................................................................... 113 1-11.1(6) Control or Base Line Survey ......................................................................... 113 1-11.1(7) Precision Levels ............................................................................................ 114 1-11.1(8) Radial and Station-Offset Topography .......................................................... 114 1-11.1(9) Radial Topography ........................................................................................ 114 1-11.1(10) Station-Offset Topography ............................................................................ 115 1-11.1(11) As-Built Survey ............................................................................................. 115 1-11.1(12) Monument Setting and Referencing .............................................................. 115 1-11.2 Materials .............................................................................................................. 116 1-11.2(1) Property/Lot Corners ..................................................................................... 116 1-11.2(2) Monuments ................................................................................................... 116 1-11.2(3) Monument Case and Cover .......................................................................... 116 2-01 CLEARING, GRUBBING, AND ROADSIDE CLEANUP ............................................. 117 2-01.2 Disposal of Usable Material and Debris ............................................................... 117 2-01.3 Construction Requirements.................................................................................. 117 2-01.3(1) Clearing ........................................................................................................ 117 2-02 REMOVAL OF STRUCTURES AND OBSTRUCTIONS.............................................. 118 2-02.2 Removal of Unforeseen Obstructions and Debris ................................................ 118 2-02.3 Construction Requirements.................................................................................. 118 2-02.3(3) Removal of Pavement, Sidewalks, Curbs, and Gutters ................................. 118 2-02.5 Payment .............................................................................................................. 119 2-03 ROADWAY EXCAVATION AND EMBANKMENT ...................................................... 120 2-03.3 Construction Requirements.................................................................................. 120 2-04 HAUL .......................................................................................................................... 122 2-04.5 Payment .............................................................................................................. 122 2-05 CONTAMINATED SOIL AND WATER ........................................................................ 123 2-05.1 Description ........................................................................................................... 123 2-05.2 Construction Requirements.................................................................................. 123 2-05.2(1) Health and Safety ......................................................................................... 123 City of Renton viii February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 2-05.2(2) Health and Safety Plan and Accident Prevention Program ............................ 124 2-05.2(3) Contaminated Soil and Groundwater Handling and Management Plan ......... 124 2-05.2(4) Jobsite Monitoring ......................................................................................... 125 2-05.2(5) Test Sampling ............................................................................................... 125 2-05.2(6) Storage ......................................................................................................... 126 2-05.2(7) Profiling and Manifests .................................................................................. 126 2-05.2(8) Disposal of Excavated Soils .......................................................................... 127 2-05.2(9) Decontamination ........................................................................................... 127 2-05.2(10) Certification of Waste Weight and Disposal ................................................... 128 2-05.2(11) Contaminated Water ..................................................................................... 128 2-06 SUBGRADE PREPARATION ..................................................................................... 129 2-06.2 Subgrade Preparation to be Incidental ................................................................. 129 2-06.3(3) Subgrade for Permeable Pavements ................................................................... 129 2-09 STRUCTURE EXCAVATION ...................................................................................... 130 2-09.1 Description ........................................................................................................... 130 2-09.3 Construction Requirements.................................................................................. 130 2-09.3(1) General Requirements .................................................................................. 130 4-04 BALLAST AND CRUSHED SURFACING .................................................................. 132 4-04.2 Gravel Base ......................................................................................................... 132 4-04.3(5) Shaping and Compaction ..................................................................................... 132 5-04 HOT MIX ASPHALT .................................................................................................... 134 5-04 HOT MIX ASPHALT (Non-Statistical, Commercial) ................................................. 134 5-04.1 Description ........................................................................................................... 134 5-04.2 Materials .............................................................................................................. 134 5-04.2(1) How to Get an HMA Mix Design on the QPL ................................................. 135 5-04.2(2) Mix Design – Obtaining Project Approval ...................................................... 135 5-04.3 Construction Requirements.................................................................................. 137 5-04.3(1) Weather Limitations ...................................................................................... 137 5-04.3(2) Paving Under Traffic ..................................................................................... 137 5-04.3(3) Equipment ..................................................................................................... 138 5-04.3(4) Preparation of Existing Paved Surfaces ........................................................ 140 5-04.3(5) Producing/Stockpiling Aggregates and RAP ................................................. 143 5-04.3(6) Mixing ........................................................................................................... 143 5-04.3(7) Spreading and Finishing ............................................................................... 144 5-04.3(8) Aggregate Acceptance Prior to Incorporation in HMA ................................... 144 5-04.3(9) HMA Mixture Acceptance .............................................................................. 144 City of Renton ix February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 5-04.3(10) HMA Compaction Acceptance ...................................................................... 148 5-04.3(11) Reject Work .................................................................................................. 151 5-04.3(12) Joints ............................................................................................................ 152 5-04.3(13) Surface Smoothness ..................................................................................... 153 5-04.3(14) Planing (Milling) Bituminous Pavement ......................................................... 154 5-04.3(15) Sealing Pavement Surfaces .......................................................................... 158 5-04.3(16) HMA Road Approaches ................................................................................ 158 5-04.3(17) Construction Joint Sealing............................................................................. 158 5-04.3(18) Incidental Uses for HMA ............................................................................... 158 5-04.3(19) Vacant........................................................................................................... 158 5-04.3(20) Vacant........................................................................................................... 158 5-04.3(21) Temporary Pavement Marking ...................................................................... 158 5-04.3(22) Speed Cushions ............................................................................................ 158 5-04.4 Measurement ....................................................................................................... 159 5-04.5 Payment .............................................................................................................. 159 5-06 TEMPORARY RESTORATION IN PAVEMENT AREA ............................................... 163 5-06.1 Description ........................................................................................................... 163 5-06.2 Materials .............................................................................................................. 163 5-06.3 Construction Requirements.................................................................................. 163 5-07 PERVIOUS CONCRETE PAVEMENT ........................................................................ 164 5-07.1 Description ........................................................................................................... 164 5-07.2 Materials .................................................................................................................. 164 5-07.3 Construction Requirements ...................................................................................... 164 5-07.3(1) Pervious Concrete Preconstruction Meeting .................................................... 164 5-07.3(2) Pervious Concrete Mix Design ......................................................................... 165 5-07.3(2)A Mix Design Criteria ........................................................................................ 165 5-07.3(2)B Job Mix Formula (JMF) ................................................................................. 166 5-07.3(3) Submittals ........................................................................................................ 166 5-07.3(4) Equipment ....................................................................................................... 167 5-07.3(5) Measuring and Batching Materials ................................................................... 168 5-07.3(6) Acceptance ...................................................................................................... 168 5-07.3(7) Rejection ......................................................................................................... 169 5-06.3(8) Mixing Pervious Concrete ................................................................................ 170 5-07.3(9) Subgrade Preparation and Subbase ................................................................ 170 5-07.3(10) Placing, Spreading, Finishing, Edging, Tolerances and Curing ...................... 170 5-07.3(11) Joints ............................................................................................................. 172 City of Renton x February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 5-07.3(12) Cold Weather Work ....................................................................................... 173 5-07.3(13) Protection of Pervious Concrete Pavement.................................................... 174 5-07.4 Measurement ........................................................................................................... 174 5-07.5 Payment ................................................................................................................... 174 6-03 STEEL STRUCTURES ............................................................................................... 175 6-03.2 Materials .............................................................................................................. 175 6-03.3 Construction Requirements.................................................................................. 175 6-03.3(7) Shop Plans ................................................................................................... 175 6-03.3(11) Workmanship and Finish ............................................................................... 175 6-03.3(25) Welding ......................................................................................................... 175 7-01 DRAINS ...................................................................................................................... 176 7-01.1 Description ........................................................................................................... 176 7-01.2 Materials .............................................................................................................. 176 7-01.3 Construction Requirements.................................................................................. 176 7-01.3(1) Drain Pipe ..................................................................................................... 176 7-01.4 Measurement ....................................................................................................... 176 7-02 CULVERTS ................................................................................................................. 177 7-02.2 Materials .............................................................................................................. 177 7-04 STORM SEWERS ....................................................................................................... 178 7-04.2 Materials .............................................................................................................. 178 7-04.3 Construction Requirements.................................................................................. 179 7-04.3(1) Cleaning and Testing .................................................................................... 179 7-04.3(2) Abandon in Place Existing Storm Sewer Pipes ............................................. 180 7-04.3(3) CCTV Inspection ........................................................................................... 180 7-04.3(4) Direct Pipe Connections ................................................................................ 180 7-04.3(5) Temporary Stormwater Diversion .................................................................. 181 7-05 MANHOLES, INLETS, AND CATCH BASINS ............................................................ 183 7-05.2 Materials .............................................................................................................. 183 7-05.3 Construction Requirements.................................................................................. 183 7-05.3(1) Adjusting Manholes and Catch Basins to Grade ........................................... 183 7-05.3(2) Abandon Existing Manholes .......................................................................... 184 7-05.3(3) Connections to Existing Manholes ................................................................ 185 7-05.3(4) Drop Manhole Connection............................................................................. 185 7-05.3(5) Manhole Coatings ......................................................................................... 186 7-05.3(6) BioPod Units ................................................................................................. 186 7-05.3(7) 120 x 72 Inch Rectangular Structure ............................................................. 186 City of Renton xi February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 7-06 CONSTRUCTION DEWATERING .............................................................................. 187 7-06.1 Description ........................................................................................................... 187 7-06.2 Construction Requirements.................................................................................. 187 7-06.2(2) Quality Assurance ......................................................................................... 188 7-06.2(3) Submittals ..................................................................................................... 189 7-06.2(4) Available Subsurface Data ............................................................................ 190 7-06.2(5) Restrictions and Limitation ............................................................................ 190 7-06.2(6) Monitoring System ........................................................................................ 190 7-06.3(3) Formation Protection and Well Development ................................................ 191 7-06.3(4) Standby Equipment ....................................................................................... 191 7-06.3(5) Discharge Points and Pipes .......................................................................... 191 7-06.3(6) Water Supply for System Installation and Electrical Service .......................... 192 7-06.3(7) Dewatering System Protection ...................................................................... 192 7-06.3(8) System Removal ........................................................................................... 192 7-08 GENERAL PIPE INSTALLATION REQUIREMENTS ................................................. 193 7-08.3 Construction Requirements.................................................................................. 193 7-08.3(2) Laying Pipe ................................................................................................... 194 7-09 WATER MAINS ........................................................................................................... 198 7-09.2 Materials .............................................................................................................. 198 7-09.3 Construction Requirements.................................................................................. 198 7-09.3(1) General ......................................................................................................... 198 7-09.3(6) Existing Utilities ............................................................................................. 198 7-09.3(15) Laying of Pipe of Curves ............................................................................... 200 7-09.3(17) Laying Ductile Iron Pipe and Fittings with Polyethylene Encasement ............ 200 7-09.3(19)A Connections to Existing Mains ...................................................................... 200 7-09.3(21) Concrete Thrust Blocking .............................................................................. 201 7-09.3(23) Hydrostatic Pressure Test ............................................................................. 202 7-12 VALVES FOR WATER MAINS ................................................................................... 205 7-12.3 Construction Requirements.................................................................................. 205 7-12.3(1) Installation of Valve Marker Post ................................................................... 205 7-12.3(2) Adjust Franchise Utility Appurtenances to Grade .......................................... 205 7-14 HYDRANTS ................................................................................................................ 206 7-14.1 Description .................................................................................................... 206 7-14.2 Materials ....................................................................................................... 206 7-14.3 Construction Requirements ........................................................................... 207 7-14.3(1) Setting Hydrants ........................................................................................... 207 City of Renton xii February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 7-14.3(1) Hydrant Assembly ......................................................................................... 207 7-14.3(3) Resetting Existing Hydrants .......................................................................... 208 7-14.3(4) Moving Existing Hydrants .............................................................................. 208 7-14.3(7) Remove and Salvage Hydrant ...................................................................... 208 7-14.3(8) Abandoned Valves ........................................................................................ 209 7-14.3(9) Water Main-Cut and Cap .............................................................................. 209 7-15 SERVICE CONNECTIONS ......................................................................................... 210 7-15.1 Description ........................................................................................................... 210 7-15.2 Materials .............................................................................................................. 210 7-15.3 Construction Requirements.................................................................................. 210 7-15.4 Measurement ....................................................................................................... 211 7-17 SANITARY SEWERS .................................................................................................. 213 7-17.2 Materials .............................................................................................................. 213 7-17.3 Construction Requirements.................................................................................. 214 7-17.3(1) Protection of Existing Sewerage Facilities ..................................................... 214 7-18 SIDE SEWERS ........................................................................................................... 218 7-18.2 Materials .............................................................................................................. 218 7-18.3(5) End Pipe Marker ........................................................................................... 218 7-19 SEWER CLEANOUTS ................................................................................................ 219 7-19.3 Construction Requirements.................................................................................. 219 7-19.4 Measurement ....................................................................................................... 219 8-02 ROADSIDE RESTORATION ....................................................................................... 220 8-02.3 Construction Requirements.................................................................................. 220 8-02.3(17) Lawn Installation ........................................................................................... 220 8-04 Curbs, Gutters, and Spillways ..................................................................................... 224 8-04.3 Construction Requirements.................................................................................. 224 8-04.5 Payment .............................................................................................................. 224 8-05 PRE- AND POST- CONSTRUCTION PHOTOGRAPHS AND VIDEO INSPECTION .. 225 8-05.1 Materials .............................................................................................................. 225 8-05.2 Construction Requirements.................................................................................. 225 8-13 MONUMENT CASES .................................................................................................. 227 8-13.3 Construction Requirements.................................................................................. 227 8-14 CEMENT CONCRETE SIDEWALKS .......................................................................... 228 8-14.2 Materials .............................................................................................................. 228 8-14.3 Construction Requirements.................................................................................. 228 8-14.3(4) Curing ........................................................................................................... 228 City of Renton xiii February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 8-21 PERMANENT SIGNING .............................................................................................. 230 8-21.2 Materials .............................................................................................................. 230 8-21.3 Construction Requirements.................................................................................. 231 8-22 PAVEMENT MARKING .............................................................................................. 232 8-22.1 Description ........................................................................................................... 232 8-22.2 Materials .............................................................................................................. 233 8-22.3 Construction Requirements.................................................................................. 233 8-22.3(3)E Installation ..................................................................................................... 234 8-22.3(3)G Glass Beads ................................................................................................. 234 8-22.3(3)H Speed Cushion Chevron ............................................................................... 234 8-22.3(3) Marking Application ....................................................................................... 234 8-22.3(5) Installation Instructions .................................................................................. 234 8-22.3(6) Removing Pavement Markings ..................................................................... 234 8-23 TEMPORARY PAVEMENT MARKINGS ..................................................................... 236 8-23.3 Construction Requirements.................................................................................. 236 9-03 AGGREGATES ........................................................................................................... 237 9-03.8 Aggregates for Concrete ...................................................................................... 237 9-03.8(7) HMA Tolerances and Adjustments ................................................................ 237 9-03.22 Cement-based Grout for Abandoning Existing Utilities (Additional Section) ......... 237 9-05 DRAINAGE STRUCTURES, CULVERTS, AND CONDUITS ...................................... 239 9-05.4 Steel Culvert Pipe and Pipe Arch ......................................................................... 239 9-05.7 Concrete Storm Sewer Pipe................................................................................. 239 9-05.7(2) Reinforced Concrete Storm Sewer Pipe ........................................................ 239 9-05.7(3) Concrete Storm Sewer Pipe Joints ................................................................ 239 9-05.7(4) Testing Concrete Storm Sewer Pipe Joints ................................................... 239 9-05.9 Steel Spiral Rib Storm Sewer Pipe....................................................................... 239 9-05.12(3) CPEP Sewer Pipe ......................................................................................... 240 9-05.13 Ductile Iron Sewer Pipe ....................................................................................... 240 9-05.13(1) Ductile Iron Pipe Casing ................................................................................ 240 9-05.20 Corrugated Polyethylene Storm Sewer Pipe (CPEP) ........................................... 241 9-05.20(1) Description .................................................................................................... 241 9-05.24 Polypropylene Culvert Pipe, Polypropylene Storm Sewer Pipe, and Polypropylene Sanitary Sewer Pipe .................................................................................................... 241 9-05.24(1) Polypropylene Culvert Pipe and Storm Sewer Pipe ....................................... 241 9-05.50 Precast Concrete Drainage Structures ................................................................. 241 9-05.50(2) Manholes ...................................................................................................... 241 9-05.51 Dense Foam ........................................................................................................ 242 City of Renton xiv February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 9-08 PAINTS AND RELATED MATERIALS ....................................................................... 243 9-08.9 Manhole Coating System Products ...................................................................... 243 9-08.9(1) Coating Systems Specification ...................................................................... 243 9-14 EROSION CONTROL AND ROADSIDE PLANTING .................................................. 244 9-14.2 Topsoil ................................................................................................................. 244 9-14.2(1) Topsoil Type A .............................................................................................. 244 9-14.5(4) Wood Strand Mulch ......................................................................................... 245 9-14.7 Plant Materials ..................................................................................................... 246 9-14.7(4) Sod ............................................................................................................... 246 9-23 CONCRETE CURING MATERIALS AND ADMIXTURES ........................................... 247 9-23.9 Fly Ash ................................................................................................................ 247 9-30 WATER DISTRIBUTION MATERIALS ....................................................................... 248 9-30.1 Pipe ..................................................................................................................... 248 9-30.1(1) Ductile Iron Pipe ............................................................................................ 248 9-30.1(2) Polyethylene Encasement ............................................................................. 248 9-30.2 Fittings ................................................................................................................. 248 9-30.2(1) Ductile Iron Pipe ............................................................................................ 248 9-30.2(2) Galvanized Iron Pipe ..................................................................................... 249 9-30.2(4) Steel Pipe ..................................................................................................... 249 9-30.2(6) Restrained Joint ............................................................................................ 250 9-30.2(7) Bolted, Sleeve-Type Couplings for Plain End Pipe ........................................ 250 9-30.3 Valves .................................................................................................................. 250 9-30.3(1) Gate Valves (3 inches to 16 inches) .............................................................. 251 9-30.3(3) Butterfly Valves ............................................................................................. 251 9-30.3(4) Valve Boxes .................................................................................................. 252 9-30.3(5) Valve Marker Posts ....................................................................................... 252 9-30.3(6) Valve Stem Extensions ................................................................................. 252 9-30.3(7) Combination Air Release/Air Vacuum Valves ................................................ 252 9-30.3(8) Tapping Sleeve and Valve Assembly ............................................................ 252 9-30.3(9) Blow-Off Assembly ........................................................................................ 253 9-30.5 Hydrants .............................................................................................................. 253 9-30.5(1) End Connections ........................................................................................... 253 9-30.5(2) Hydrant Dimensions ...................................................................................... 253 9-30.6 Water Service Connections (2 Inches and Smaller) ............................................. 254 9-30.6(3) Service Pipes ................................................................................................ 254 9-30.6(4) Service Fittings ............................................................................................. 254 City of Renton xv February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 9-30.6(5) Meter Setters ................................................................................................ 254 9-30.6(7) Meter Boxes .................................................................................................. 254 City of Renton xvi February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions THIS PAGE INTENTIONALLY LEFT BLANK SPECIAL PROVISIONS THIS PAGE INTENTIONALLY LEFT BLANK City of Renton 1-1 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions INTRODUCTION TO THE SPECIAL PROVISIONS The work on this project shall be accomplished in accordance with the Standard Specifications for Road, Bridge and Municipal Construction, 2024 edition, as issued by the Washington State Department of Transportation (WSDOT) and the American Public Works Association (APWA), Washington State Chapter (hereafter “Standard Specifications”). The Standard Specifications, as modified or supplemented by the Amendments to the Standard Specifications and these Special Provisions, all of which are made a part of the Contract Documents, shall govern all of the Work. These Special Provisions are made up of both General Special Provisions (GSPs) and Project Special Provisions (PSPs) from various sources. Each Provision supplements, modifies, or replaces the comparable Standard Specification, or is a new Provision. The deletion, amendment, alteration, or addition to any subsection or portion of the Standard Specifications is meant to pertain only to that particular portion of the section, and in no way should it be interpreted that the balance of the section does not apply. Special Provision types are labeled under each header with the effective date and its source, as follows: (date MUTCD GSP) General Special Provision from Manual on Uniform Traffic Control Devices (MUTCD) for Streets and Highways, with Washington State modifications, if any (date PROWAG GSP) General Special Provision from Public Rights-Of-Way Accessibility Guidelines (PROWAG) (date WSDOT GSP) General Special Provision from WSDOT (date APWA GSP) General Special Provision from the American Public Works Association (AWPA) (******) Project Special Provision Also incorporated into the Contract Documents by reference are: · Manual on Uniform Traffic Control Devices for Streets and Highways, currently adopted edition, with Washington State modifications, if any · Standard Plans for Road, Bridge and Municipal Construction, WSDOT/APWA, current edition · City of Renton Standard Plans, City of Renton Public Works Department, Current Edition · Public Rights-Of-Way Accessibility Guidelines (PROWAG), current edition Contractor shall obtain copies of these publications, at Contractor’s own expense. The symbol (******) indicates a PSP, that is a Special Provision that normally appears only in this contract. A GSP that has been modified is identified as a PSP. When the Local Agency GSPs revise only a part of a paragraph(s) in a section of the WSDOT/APWA Standard Specifications, the entire paragraph is repeated, with new text underlined for clarity, and deleted text crossed out. When the entire paragraph or section is revised, underlines are not used. Introduction to the Special Provisions City of Renton 1-2 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Third-Party Beneficiary: All parties agree that the State of Washington shall be, and is hereby, named as an express third-party beneficiary of this Contract, with full rights as such. END OF INTRODUCTION DIVISION 1 GENERAL REQUIREMENTS City of Renton 1-3 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 1-01 DEFINITIONS AND TERMS 1-01.3 Definitions (January 19, 2022 APWA GSP) Delete and replace the heading Completion Dates and the three paragraphs that follow it, and replace them with the following: Dates Bid Opening Date The date on which the Contracting Agency publicly opens and reads the Bids. Award Date The date of the formal decision of the Contracting Agency to accept the lowest responsible and responsive Bidder for the Work. Contract Execution Date The date the Contracting Agency officially binds the Agency to the Contract. Notice to Proceed Date The date stated in the Notice to Proceed on which the Contract time begins. Substantial Completion Date The day the Engineer determines the Contracting Agency has full and unrestricted use and benefit of the facilities, both from the operational and safety standpoint, any remaining traffic disruptions will be rare and brief, and only minor incidental work, replacement of temporary substitute facilities, plant establishment periods, or correction or repair remains for the Physical Completion of the total Contract. Physical Completion Date The day all of the Work is physically completed on the project. All documentation required by the Contract and required by law does not necessarily need to be furnished by the Contractor by this date. Completion Date The day all the Work specified in the Contract is completed and all the obligations of the Contractor under the contract are fulfilled by the Contractor. All documentation required by the Contract and required by law must be furnished by the Contractor before establishment of this date. Final Acceptance Date The date on which the Contracting Agency accepts the Work as complete. Supplement this Section with the following: All references in the Standard Specifications or WSDOT General Special Provisions, to the terms “Department of Transportation”, “Washington State Transportation Commission”, “Commission”, “Secretary of Transportation”, “Secretary”, “Headquarters”, and “State Treasurer” shall be revised to read “Contracting Agency”. 1-01 Definitions and Terms City of Renton 1-4 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions All references to the terms “State” or “state” shall be revised to read “Contracting Agency” unless the reference is to an administrative agency of the State of Washington, a State statute or regulation, or the context reasonably indicates otherwise. All references to “State Materials Laboratory” shall be revised to read “Contracting Agency designated location”. All references to “final contract voucher certification” shall be interpreted to mean the Contracting Agency form(s) by which final payment is authorized, and final completion and acceptance granted. Additive A supplemental unit of work or group of bid items, identified separately in the Bid Proposal, which may, at the discretion of the Contracting Agency, be awarded in addition to the base bid. Alternate One of two or more units of work or groups of bid items, identified separately in the Bid Proposal, from which the Contracting Agency may make a choice between different methods or material of construction for performing the same work. Business Day A business day is any day from Monday through Friday except holidays as listed in Section 1-08.5. Contract Bond The definition in the Standard Specifications for “Contract Bond” applies to whatever bond form(s) are required by the Contract Documents, which may be a combination of a Payment Bond and a Performance Bond. Contract Documents See definition for “Contract”. Contract Time The period of time established by the terms and conditions of the Contract within which the Work must be physically completed. Notice of Award The written notice from the Contracting Agency to the successful Bidder signifying the Contracting Agency’s acceptance of the Bid Proposal. Notice to Proceed The written notice from the Contracting Agency or Engineer to the Contractor authorizing and directing the Contractor to proceed with the Work and establishing the date on which the Contract time begins. Traffic Both vehicular and non-vehicular traffic, such as pedestrians, bicyclists, wheelchairs, and equestrian traffic. 1-01 Definitions and Terms City of Renton 1-5 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions (******) Supplement this section as follows: Act of God "Act of God" means an earthquake, flood, cyclone, or other cataclysmic phenomenon of nature. A rain, windstorm, high water or other natural phenomenon of unusual intensity for the specific locality of the Work, which might reasonably have been anticipated from historical records of the general locality of the Work, shall not be construed as an act of God. Biologist Shall consist of a biologist representing the Contracting Agency. Consulting Engineer The Contracting Agency's design consultant, who may or may not administer the construction program for the Contracting Agency. Contract Price Either the unit price, the unit prices, or lump sum price or prices named in the proposal, or in properly executed change orders. Day Unless otherwise designated, day(s) as used in the Contract Documents, shall be understood to mean working days. District The Soos Creek Water and Sewer District is the owner of the proposed and existing water and sewer utility for this contract, referenced as District or Soos Creek. Engineer The City Engineer or duly authorized representative, or an authorized member of a licensed consulting firm retained by the Owner for the construction engineering of a specific public works project. Inspector The Owner’s authorized representative assigned to make necessary observations of the Work performed or being performed, or of materials furnished or being furnished by the Contractor. Or Equal Where the term "or equal" is used herein, the Contracting Agency, or the Contracting Agency on recommendation of the Engineer, shall be the sole judge of the quality and suitability of the proposed substitution. The responsibility and cost of furnishing necessary evidence, demonstrations, or other information required to obtain the approval of alternative materials or processes by the Owner shall be entirely borne by the Contractor. Owner The City of Renton or its authorized representative also referred to as Contracting Agency. Performance and Payment Bond Same as “Contract Bond” defined in the Standard Specifications. 1-01 Definitions and Terms City of Renton 1-6 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Plans The Contract Plans and/or Standard Plans which show location, character, and dimensions of prescribed Work including layouts, profiles, cross-sections, and other details. Drawings may either be bound in the same book as the balance of the Contract Documents or bound in separate sets, and are a part of the Contract Documents, regardless of the method of binding. The terms "Standard Drawings" or "Standard Details" generally used in Specifications refers to drawings bound either with the specification documents or included with the Plans or the City of Renton or District Standard Plans. Points Wherever reference is made to the Engineer’s points, this shall mean all marks, bench marks, reference points, stakes, hubs, tack, etc., established by the Engineer for maintaining horizontal and vertical control of the Work. Provide Means “furnish and install” as specified and shown in the Plans. Secretary, Secretary of Transportation The chief executive officer of the Department and other authorized representatives. The chief executive officer to the Department shall also refer to the Department of Public Works Administrator. Shop Drawings Same as “Working Drawings” defined in the Standard Specifications. Special Provisions Modifications to the Standard Specifications and their amendments that apply to an individual project. The special provisions may describe Work the Specifications do not cover. Such Work shall comply first with the Special Provisions and then with any Specifications that apply. The Contractor shall include all costs of doing this Work within the bid prices. State The state of Washington acting through its representatives. The State shall also refer to The City of Renton and its authorized representatives where applicable. Supplemental Drawings and Instructions Additional instructions by the Engineer at request of the Contractor by means of drawings or documents necessary, in the opinion of the Engineer, for the proper execution of the Work. Such drawings and instructions are consistent with the Contract Documents. Utility Public or private fixed improvement for the transportation of fluids, gases, power, signals, or communications and shall be understood to include tracks, overhead and underground wires, cables, pipelines, conduits, ducts, sewers, or storm drains. END OF SECTION 1-01 1-02 Bid Procedures and Conditions City of Renton 1-7 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 1-02 BID PROCEDURES AND CONDITIONS 1-02.1 Prequalification of Bidders (January 24, 2011 APWA GSP) Delete and replace this section as follows: Before award of a public works contract, a bidder must meet at least the minimum qualifications of RCW 39.04.350(1) to be considered a responsible bidder and qualified to be awarded a public works project. 1-02.1(1) Supplemental Qualifications Criteria (July 31, 2017 APWA GSP) This is a new section as follows: In addition, the Contracting Agency has established Contracting Agency-specific and/or project-specific supplemental criteria, in accordance with RCW 39.04.350(3), for determining Bidder responsibility, including the basis for evaluation and the deadline for appealing a determination that a Bidder is not responsible. These criteria are contained in Section 1- 02.14 Option C of these Special Provisions. 1-02.2 Plans and Specifications (July 27, 2011 APWA GSP) Delete this section and replace as follows: Information as to where Bid Documents can be obtained or reviewed will be found in the Call for Bids (Advertisement for Bids) for the Work. After award of the Contract, Plans and Specifications will be issued to the Contractor at no cost as detailed below: To Prime Contractor No. of Sets Basis of Distribution Reduced Plans (11” x 17”) 3 Furnished automatically upon award Contract Provisions 3 Furnished automatically upon award Large Plans (e.g., 22” x 34”) 1 Furnished only upon request Electronic Contract Documents 1 Furnished upon request Additional plans and Contract Provisions may be obtained by the Contractor from the source stated in the Call for Bids, at the Contractor’s own expense. 1-02.4 Examination of Plans, Specifications, and Site of Work 1-02.4(1) General (December 30, 2022 APWA GSP Option B) The first sentence of the ninth paragraph, beginning with “Prospective Bidder desiring…”, is revised to read: Prospective Bidders desiring an explanation or interpretation of the Bid Documents, shall request the explanation or interpretation in writing by close of business 5 business days 1-02 Bid Procedures and Conditions City of Renton 1-8 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions preceding the bid opening to allow a written reply to reach all prospective Bidders before the submission of their Bids. 1-02.4(2) Subsurface Information (******) Section 1-02.4(2) is supplemented with the following: If a geotechnical study was prepared for the project, then the findings and recommendations are summarized in a report which is made available for the bidders’ convenience but is not a part of the contract. 1-02.5 Proposal Forms (******) Delete and replace this section as follows: At the request of the bidder, the Contracting Agency will provide a proposal form for any project on which the bidder is eligible to bid. The proposal form will identify the project and its location and describe the Work. It will also list estimated quantities, units of measurement, the items of Work, and the materials to be furnished at the unit bid prices. The bidder shall complete spaces on the proposal form that call for, but are not limited to, unit bid prices; extensions; summations; the total bid amount; signatures; date; and, where applicable, retail sales taxes and acknowledgement of addenda; the bidder’s name, address, telephone number, and signature; a State of Washington Contractor’s Registration Number; Unified Business Identifier (UBI); Industrial Insurance Account Number; Employment Security Department Number and State Excise Tax Registration Number. Bids shall be completed by typing or shall be printed in ink by hand, preferably in black ink. The required certifications are included as part of the proposal form. The Contracting Agency reserves the right to arrange the proposal forms with alternates and additives, if such be to the advantage of the Contracting Agency. The bidder shall bid on all alternates and additives set forth in the proposal forms unless otherwise specified. Any correction to a bid made by interlineations, alteration, or erasure, shall be initialed by the signer of the bid. The bidder shall make no stipulation on the Bid Form, nor qualify the bid in any manner. 1-02.6 Preparation of Proposal (December 10, 2020 APWA GSP, Option B) Supplement the second paragraph with the following: 4. If a minimum bid amount has been established for any item, the unit or lump sum price must equal or exceed the minimum amount stated. 5. Any correction to a bid made by interlineation, alteration, or erasure, shall be initialed by the signer of the bid. Delete the last two paragraphs, and replace them with the following: The Bidder shall submit with their Bid a completed Contractor Certification Wage Law Compliance form, provided by the Contracting Agency. Failure to return this certification as 1-02 Bid Procedures and Conditions City of Renton 1-9 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions part of the Bid Proposal package will make this Bid Nonresponsive and ineligible for Award. A Contractor Certification of Wage Law Compliance form is included in the Proposal Forms. The Bidder shall make no stipulation on the Bid Form, nor qualify the bid in any manner. A bid by a corporation shall be executed in the corporate name, by the president or a vice president (or other corporate officer accompanied by evidence of authority to sign). A bid by a partnership shall be executed in the partnership name, and signed by a partner. A copy of the partnership agreement shall be submitted with the Bid Form if any UDBE requirements are to be satisfied through such an agreement. A bid by a joint venture shall be executed in the joint venture name and signed by a member of the joint venture. A copy of the joint venture agreement shall be submitted with the Bid Form if any UDBE requirements are to be satisfied through such an agreement. (******) Section 1-02.6 is supplemented with the following: Evidence of the signatory’s authority to sign the Bid Proposal on behalf of the business entity shall be submitted with the Bid Proposal. Otherwise, the submitted Bid Proposal will be considered irregular and non-responsive and may be rejected. 1-02.6(1) Certification of Compliance with Wage Payment Statutes (******) Section 1-02.6(1) is an added new section: The Bidder shall submit with the Bid a completed and signed “Contractor Certification, Wage Law Compliance – Responsibility Criteria, Washington State Public Works Contracts” document where the Bidder under penalty of perjury verifies that the Bidder is in compliance with responsible bidder criteria in RCW 39.04.350 subsection (1)(g), as required per Section 1-02.14. Otherwise, the submitted Bid Proposal will be considered irregular and non- responsive and will be rejected. The Bidder may use the form provided in the Bid Documents. The form is also available at https://wsdot.wa.gov/business-wsdot/how-do-business-us/electronic-forms. The Bidder may download, print, complete and sign the form to include with Bid. The DOT Form, DOT Form Number and revision date must match the form included in the Bid Documents, otherwise the Bid will be regarded as irregular and non-responsive and the Bid will be rejected. 1-02.7 Bid Deposit (March 8, 2013 APWA GSP) Supplement this section as follows: Bid bonds shall contain the following: 1. Contracting Agency-assigned number for the project; 2. Name of the project; 3. The Contracting Agency named as obligee; 1-02 Bid Procedures and Conditions City of Renton 1-10 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 4. The amount of the bid bond stated either as a dollar figure or as a percentage which represents five percent of the maximum bid amount that could be awarded; 5. Signature of the bidder’s officer empowered to sign official statements. The signature of the person authorized to submit the bid should agree with the signature on the bond, and the title of the person must accompany the said signature; 6. The signature of the surety’s officer empowered to sign the bond and the power of attorney. If so stated in the Contract Provisions, bidder must use the bond form included in the Contract Provisions. If so stated in the Contract Provisions, cash will not be accepted for a bid deposit. 1-02.7(1) Bid Bond, Cashier’s Check, Postal Money Order (******) Section 1-02.7(1) is an added new section: As evidence of good faith, pursuant to RCW 35.23.352(1), an original Bid Proposal Deposit in the form of either a bid bond, cashier’s check or postal money order in an amount equal to five percent (5%) of the Total Bid Amount shall be submitted with the Bid Proposal. If the Bidder elects to provide a bid bond, the Proposal Bid Bond form included in the Bid Documents shall be used. Otherwise, the Bid Proposal will be considered irregular and non- responsive and the Bid Proposal will be rejected. If the Bidder elects to provide a cashier’s check, it shall be made payable to the City of Renton. If the Bidder elects to provide a postal money order, it shall be made payable to the City of Renton. Cash will not be accepted for a bid deposit. 1-02.9 Delivery of Proposal (******) Delete Section 1-02.9 and replace it with the following: Each Proposal shall be submitted in a sealed envelope, with the Project Name and Project Number as stated in the Call for Bids clearly marked on the outside of the envelope, or as otherwise required in the Bid Documents, to ensure proper handling and delivery. Proposals that are received as required will be publicly opened and read as specified in Section 1-02.12. The Contracting Agency will not open or consider any Bid Proposal that is received after the time specified in the Call for Bids for receipt of Bid Proposals, or received in a location other than that specified in the Call for Bids. The Contracting Agency will not open or consider any “Supplemental Information” (DBE confirmations, or GFE documentation) that is received after the time specified above, or received in a location other than that specified in the Call for Bids. 1-02 Bid Procedures and Conditions City of Renton 1-11 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions If an emergency or unanticipated event interrupts normal work processes of the Contracting Agency so that Proposals cannot be received at the office designated for receipt of bids as specified in Section 1-02.12 the time specified for receipt of the Proposal will be deemed to be extended to the same time of day specified in the solicitation on the first work day on which the normal work processes of the Contracting Agency resume. 1-02.10 Withdrawing, Revising, or Supplementing Proposal (July 23, 2015 APWA GSP) Delete this section, and replace it as follows: After submitting a physical Bid Proposal to the Contracting Agency, the Bidder may withdraw, revise, or supplement it if: The Bidder submits a written request signed by an authorized person and physically delivers it to the place designated for receipt of Bid Proposals, and The Contracting Agency receives the request before the time set for receipt of Bid Proposals, and The revised or supplemented Bid Proposal (if any) is received by the Contracting Agency before the time set for receipt of Bid Proposals. If the Bidder’s request to withdraw, revise, or supplement its Bid Proposal is received before the time set for receipt of Bid Proposals, the Contracting Agency will return the unopened Proposal package to the Bidder. The Bidder must then submit the revised or supplemented package in its entirety. If the Bidder does not submit a revised or supplemented package, then its bid shall be considered withdrawn. Late revised or supplemented Bid Proposals or late withdrawal requests will be date recorded by the Contracting Agency and returned unopened. Mailed, emailed, or faxed requests to withdraw, revise, or supplement a Bid Proposal are not acceptable. 1-02.12 Public Opening of Proposals (******) Supplemented this section as follows: The Contracting Agency reserves the right to postpone the date and/or time that sealed bids are due and the bid opening. Notification to bidders of any change will be by addenda. 1-02.13 Irregular Proposals (******) Delete this section and replace it with the following: 1. A Proposal will be considered irregular and will be rejected if: a. The Bidder is not prequalified when so required; b. The authorized Proposal form furnished by the Contracting Agency is not used or is altered; c. The completed Proposal form contains any unauthorized additions, deletions, alternate Bids, or conditions; d. The Bidder adds provisions reserving the right to reject or accept the award, or enter into the Contract; 1-02 Bid Procedures and Conditions City of Renton 1-12 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions e. A unit price (price per unit) cannot be determined from the Bid Proposal; f. The Proposal form is not properly executed; g. The Bidder fails to submit with their proposal, an original Bid Proposal Deposit in an amount equal to five percent (5%) of the Total Bid Amount, as required in Section 1 02.7; h. The Bidder elects to provide a Proposal Bid Bond for the Bid Proposal Deposit and does not submit or properly execute the Proposal Bid Bond form included in the Bid Documents, as required in Section 1-02.7; i. The Bidder fails to submit or properly complete a subcontractor list (WSDOT Form 271-015), if applicable, as required in Section 1-02.6; j. The Bidder fails to submit or properly complete a Disadvantaged Business Enterprise Certification (WSDOT Form 272-056), if applicable, as required in Section 1-02.6; k. The Bidder fails to submit Written Confirmations (WSDOT Form 422-031) from each DBE firm listed on the Bidder’s completed DBE Utilization Certification that they are in agreement with the bidder’s DBE participation commitment, if applicable, as required in Section 1-02.6, or if the written confirmation that is submitted fails to meet the requirements of the Special Provisions; l. The Bidder fails to submit DBE Good Faith Effort documentation, if applicable, as required in Section 1-02.6, or if the documentation that is submitted fails to demonstrate that a Good Faith Effort to meet the Condition of Award was made; m. The Bidder fails to submit a DBE Bid Item Breakdown (WSDOT Form 272-054), if applicable, as required in Section 1-02.6, or if the documentation that is submitted fails to meet the requirements of the Special Provisions; n. The Bidder fails to submit DBE Trucking Credit Forms (WSDOT Form 272-058), if applicable, as required in Section 1-02.6, or if the documentation that is submitted fails to meet the requirements of the Special Provisions; o. The Bidder fails to submit or properly execute the Contractor Certification, Wage Law Compliance – Responsibility Criteria, Washington State Public Works Contractors document, as required in Section 1-02.6(1). p. The Bid Proposal does not constitute a definite and unqualified offer to meet the material terms of the Bid invitation; or q. More than one Proposal is submitted for the same project from a Bidder under the same or different names. 2. A Proposal may be considered irregular and may be rejected if: a. The Proposal does not include a unit price for every Bid item; b. Any of the unit prices are excessively unbalanced (either above or below the amount of a reasonable Bid) to the potential detriment of the Contracting Agency; c. Receipt of Addenda is not acknowledged; d. A member of a joint venture or partnership and the joint venture or partnership submit Proposals for the same project (in such an instance, both Bids may be rejected); or e. If Proposal form entries are not made in ink. 1-02 Bid Procedures and Conditions City of Renton 1-13 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 3. A Proposal will be considered irregular and may be rejected if: a. The Bidder fails to submit with their Bid Proposal, evidence of signatory’s authority to sign the Bid Proposal on behalf of the business entity, as required in Section 1-02.6. 1-02.14 Disqualification of Bidders (******) Delete this section and replace it with the following: A Bidder will be deemed not responsible if the Bidder does not meet the mandatory bidder responsibility criteria in RCW 39.04.350(1), as amended. A bidder may be deemed not responsible and the proposal rejected if: a. More than one Proposal is submitted for the same project from a Bidder under the same or different names; b. Evidence of collusion exists with any other Bidder or potential Bidder. Participants in collusion will be restricted from submitting further Bids; c. The Bidder, in the opinion of the Contracting Agency, is not qualified for the Work or to the full extent of the bid, or to the extent that the bid exceeds the authorized prequalification amount as may have been determined by a prequalification of the Bidder; d. An unsatisfactory performance record exists based on past or current Contracting Agency Work or for Work done for others, as judged from the standpoint of conduct of the Work; workmanship; progress; affirmative action; equal employment opportunity practices; or Disadvantaged Enterprise, Minority Enterprise, or Women’s Business Enterprise utilization. e. There is uncompleted Work (Contracting Agency or otherwise) which might hinder or prevent the prompt completion of the Work bid upon; f. The Bidder failed to settle bills for labor or materials on past or current Contracts; g. The Bidder has failed to complete a written public contract or has been convicted of a crime arising from a previous public contract; h. The Bidder is unable, financially or otherwise, to perform the Work; i. A Bidder is not authorized to do business in the State of Washington (not registered in accordance with RCW 18.27). j. The Bidder owes delinquent taxes to the Washington State Department of Revenue without a payment plan approved by the Department of Revenue; k. The Bidder is currently debarred or suspended by the Federal government; l. There are any other reasons deemed proper by the Contracting Agency. The Contracting Agency will verify that the Bidder meets the mandatory bidder responsibility criteria in RCW 39.04.350(1). To assess bidder responsibility, the Contracting Agency reserves the right to request further documentation as needed from the low bidder and documentation from other Bidders as well to assess Bidder responsibility and compliance with all bidder responsibility criteria. The Contracting Agency also reserves the right to obtain information from third-parties and independent sources of information concerning a Bidder’s compliance with the mandatory and supplemental criteria, and to use that 1-02 Bid Procedures and Conditions City of Renton 1-14 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions information in their evaluation. The Contracting Agency may consider mitigating factors in determining whether the Bidder complies with the requirements of the Supplemental Criteria. The basis for evaluation shall include any documents or facts obtained by Contracting Agency (whether from the Bidder or third parties) including but not limited to: (i) financial, historical, or operational data from the Bidder; (ii) information obtained directly by the Contracting Agency from others for whom the Bidder has worked, or other public agencies or private enterprises; and (iii) any additional information obtained by the Contracting Agency which is believed to be relevant to the matter. If the Contracting Agency determines the Bidder does not meet the bidder responsibility criteria above and is therefore not a responsible Bidder, the Contracting Agency shall notify the Bidder in writing, with the reasons for its determination. If the Bidder disagrees with this determination, it may appeal the determination within two (2) business days of the Contracting Agency’s determination by presenting its appeal and any additional information to the Contracting Agency. The Contracting Agency will consider the appeal and any additional information before issuing its final determination. If the final determination affirms that the Bidder is not responsible, the Contracting Agency will not execute a contract with any other Bidder until at least two business days after the Bidder determined to be not responsible has received the Contracting Agency’s final determination. 1-02.15 Pre Award Information (December 30, 2022 APWA GSP) (******) Revise this section as follows: Before awarding any contract, the Contracting Agency may require one or more of these items or actions of the bidder: 1. A complete statement of the origin, composition, and manufacture of any or all materials to be used, 2. Samples of these materials for quality and fitness tests, 3. A progress schedule (in a form the Contracting Agency requires) showing the order of and time required for the various phases of the work, 4. A breakdown of costs assigned to any bid item, 5. Attendance at a conference with the Engineer or representatives of the Engineer, 6. Obtain, and furnish a copy of, a business license to do business in the city or county where the work is located. 7. Any other information or action taken that is deemed necessary to ensure that the bidder is the lowest responsible bidder. END OF SECTION 1-02 1-03 Award and Execution of Contract City of Renton 1-15 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 1-03 AWARD AND EXECUTION OF CONTRACT 1-03.1 Consideration of bids (December 30, 2022 APWA GSP) Revise the first paragraph to read: After opening and reading proposals, the Contracting Agency will check them for correctness of extensions of the prices per unit and the total price. If a discrepancy exists between the price per unit and the extended amount of any bid item, the price per unit will control. If a minimum bid amount has been established for any item and the bidder’s unit or lump sum price is less than the minimum specified amount, the Contracting Agency will unilaterally revise the unit or lump sum price, to the minimum specified amount and recalculate the extension. The total of extensions, corrected where necessary, including sales taxes where applicable and such additives and/or alternates as selected by the Contracting Agency, will be used by the Contracting Agency for award purposes and to fix the Awarded Contract Price amount and the amount of the contract bond. (******) Revise the first sentence of the third paragraph to read: A Bidder who wishes to claim error after the Bids have been publicly opened and read as required by Section 1-02.12, shall promptly notify the Contracting Agency that an error has occurred. (******) Revise the last sentence of the fourth paragraph to read: If the Contracting Agency does not concur in the error or determines that the error is not the kind for which the law allows relieve, the Contracting Agency may Award the Contract and if the Bidder refuses to execute the Contract, the Bidder’s Bid deposit shall be forfeited as required by RCW 35.23.352. Per RCW 39.04.107, a low bidder on a public works project who claims error and fails to enter into a contract is prohibited from bidding on the same project if a second or subsequent call for bids is made for the project. (******) Supplement this section as follows: All bids will be based on total sum of all schedules of prices. No partial bids will be accepted unless so stated in the call for bids or special provisions. The City reserves the right to award all or any schedule of a bid to the lowest bidder at its discretion. 1-03.2 Award of Contract (******) Supplement this section as follows: The Contract, bond form, and all other forms requiring execution, together with a list of all other forms or documents required to be submitted by the successful bidder, will be forwarded to the successful bidder within 10 days of the award. The number of copies to be executed by the Contractor shall be determined by the Contracting Agency. 1-03 Award and Execution of Contract City of Renton 1-16 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 1-03.3 Execution of Contract (******) Revise and supplement this section as follows: Within 10 calendar days after receipt from the City of the forms and documents required to be completed by the Contractor, the successful bidder shall return the signed Contracting Agency-prepared contract, an insurance certification as required by Section 1-07.18, and a satisfactory bond as required by law and Section 1-03.4. Before execution of the Contract by the Contracting Agency, the successful bidder shall provide any pre-award information the Contracting Agency may require under Section 1-02.15. Until the Contracting Agency executes a contract, no proposal shall bind the Contracting Agency nor shall any Work begin within the project limits or within Contracting Agency- furnished sites. The Contractor shall bear all risks for any Work begun outside such areas and for any materials ordered before the Contract is executed by the Contracting Agency. If the bidder experiences circumstances beyond their control that prevents return of the Contract documents within 10 calendar days after the award date, the Contracting Agency may grant up to a maximum of 10 additional calendar days for return of the documents, provided the Contracting Agency deems the circumstances warrant it. The Contracting Agency is prohibited by RCW 39.06.010 from executing a contract with a Contractor who is not registered or licensed as required by the laws of the state. In addition, the Contracting Agency requires persons doing business with the Contracting Agency to possess a valid City of Renton business license prior to award. When the Bid Form provides spaces for a business license number, a Washington State Contractors registration number, or both the Bidder shall insert such information in the spaces provided. The Contracting Agency requires legible copies of the Contractor's Registration and business license be submitted to the Engineer as part of the Contracting Agency's post-award information and evaluation activities. It is anticipated that this project will be funded in part by the Washington State Department of Ecology. Neither the State of Washington nor any of its departments or employees are, or shall be, a party to this contract or any subcontract. 1-03.4 Contract Bond (July 23, 2015 APWA GSP) Delete the first paragraph and replace it as follows: The successful bidder shall provide executed payment and performance bond(s) for the full contract amount. The bond may be a combined payment and performance bond; or be separate payment and performance bonds. In the case of separate payment and performance bonds, each shall be for the full contract amount. The bond(s) shall: Be on Contracting Agency-furnished form(s); Be signed by an approved surety (or sureties) that: a. Is registered with the Washington State Insurance Commissioner, and b. Appears on the current Authorized Insurance List in the State of Washington published by the Office of the Insurance Commissioner, 1-03 Award and Execution of Contract City of Renton 1-17 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Guarantee that the Contractor will perform and comply with all obligations, duties, and conditions under the Contract, including but not limited to the duty and obligation to indemnify, defend, and protect the Contracting Agency against all losses and claims related directly or indirectly from any failure: a. Of the Contractor (or any of the employees, subcontractors, or lower tier subcontractors of the Contractor) to faithfully perform and comply with all contract obligations, conditions, and duties, or b. Of the Contractor (or the subcontractors or lower tier subcontractors of the Contractor) to pay all laborers, mechanics, subcontractors, lower tier subcontractors, material person, or any other person who provides supplies or provisions for carrying out the work; 4. Be conditioned upon the payment of taxes, increases, and penalties incurred on the project under titles 50, 51, and 82 RCW; and 5. Be accompanied by a power of attorney for the Surety’s officer empowered to sign the bond; and 6. Be signed by an officer of the Contractor empowered to sign official statements (sole proprietor or partner). If the Contractor is a corporation, the bond(s) must be signed by the president or vice president, unless accompanied by written proof of the authority of the individual signing the bond(s) to bind the corporation (i.e., corporate resolution, power of attorney, or a letter to such effect signed by the president or vice president). 1-03.7 Judicial Review (December 30, 2022 APWA GSP) Revise this section to read: All decisions made by the Contracting Agency regarding the Award and execution of the Contract or Bid rejection shall be conclusive subject to the scope of judicial review permitted under Washington Law. Such review, if any, shall be timely filed in the Superior Court of the county where the Contracting Agency headquarters is located, provided that where an action is asserted against a county, RCW 36.01.050 shall control venue and jurisdiction. END OF SECTION 1-03 1-04 Scope of Work City of Renton 1-18 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 1-04 SCOPE OF WORK 1-04.2 Coordination of Contract Documents, Plans, Special Provisions Specifications, and Addenda (December 30, 2022 APWA GSP) Revise the second paragraph to read: Any inconsistency in the parts of the contract shall be resolved by following this order of precedence (e.g., 1 presiding over 2, 2 over 3, 3 over 4, and so forth): 1. Addenda, 2. Proposal Form, 3. Special Provisions, 4. Contract Plans, 5. Standard Specifications, 6. Contracting Agency’s Standard Plans or Details (if any), and 7. WSDOT Standard Plans for Road, Bridge, and Municipal Construction. 1-04.4 Changes (January 19, 2022 APWA GSP) The first two sentences of the last paragraph of Section 1-04.4 are deleted. 1-04.4(1) Minor Changes (******) Section 1-04.4(1) is supplemented as follows: Payments and credits will be determined in accordance with Section 1-09.4 of the Standard Specifications. For the purpose of providing a common proposal for all bidders, the Contracting Agency may have entered an amount for “Minor Changes” in the Proposal to become a part of the total bid by the Contractor. 1-04.5 Procedure, Protest, and Dispute by the Contractor (January 19, 2022 APWA GSP) Revise item 1 of the first paragraph to read: 1. Give a signed written notice of protest to the Engineer or the Engineer’s field Inspectors within three (3) calendar days of receiving a change order or an Engineer’s Written Determination. 1-04.6 Variation in Estimated Quantities (December 30, 2022 APWA GSP, Option B) Revise the first paragraph to read: Payment to the Contractor will be made only for the actual quantities of Work performed and accepted in conformance with the Contract. When the accepted quantity of Work performed under a unit item varies from the original Proposal quantity, payment will be at the unit Contract price for all Work unless the total accepted quantity of the Contract item, adjusted to exclude added or deleted amounts included in change orders accepted by both parties, 1-04 Scope of Work City of Renton 1-19 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions increases or decreases by more than 25 percent from the original Proposal quantity, and if the total extended bid price for that item at time of award is equal to or greater than 10 percent of the total contract price at time of award. In that case, payment for contract work may be adjusted as described herein. (******) Supplement this section as follows: The quantities for the following items have been entered into the Proposal only to provide a common proposal for bidders. Actual quantities will be determined in the field as the work progresses, and will be paid at the original bid price, regardless of final quantity. These bid items shall not be subject to the provisions of 1-04.6 of the Standard Specifications: · “Minor Changes” · “Resolution of Utility Conflicts” · “Contaminated Soil Excavation, Haul, And Disposal” · “Contaminated Water Treatment” · “Apprenticeship Incentive” · “Apprenticeship Penalty” 1-04.8 Progress Estimates and Payments (******) Supplement this section as follows: The Contractor is encouraged to provide to the Engineer, prior to progress payments, an estimate of lump sum work accomplished to date. The Engineer's calculations and decisions shall be final in regard to the actual percentage of any lump sum pay item accomplished and eligible for payment unless another specific method of calculating lump sum payments is provided elsewhere in the Specifications. 1-04.11 Final Cleanup (******) Revise the first paragraph in this section as follows: The Contractor shall perform final cleanup as provided in this section to the Engineer’s satisfaction. The Engineer will not establish the Physical Completion Date until this is done. The Right of Way, material sites, and all ground the Contractor occupied to do the Work shall be left neat and presentable. The Contractor shall: Remove all rubbish, surplus materials, discarded materials, falsework, camp buildings, temporary structures, equipment, and debris; and Deposit in embankments, or remove from the project, all unneeded, oversized rock left from grading, surfacing, or paving. (******) Supplement this section as follows: All salvage material as noted on the Plans and taken from any of the discarded facilities shall, at the Engineer's discretion, be carefully salvaged and delivered to the City shops. Any 1-04 Scope of Work City of Renton 1-20 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions cost incurred in salvaging and delivering such items shall be considered incidental to the project and no compensation will be made. The Contract price for "Finish and Cleanup, Lump Sum," shall be full compensation for all Work, equipment and materials required to perform final cleanup. If this pay item does not appear in the Contract Documents then final cleanup shall be considered incidental to the Contract and to other pay items and no further compensation shall be made. 1-04.12 Contractor-Discovered Discrepancies (******) This is a new section as follows: Upon receipt of award of contract, the Contractor shall carefully study and compare all the components of the Contract Documents and other instructions, and check and verify all field measurements. The Contractor shall, prior to ordering material or performing Work, report in writing to the Engineer any error, inconsistency, or omission in respect to design or mode of construction, which is discovered. If the Contractor, in the course of this study or in the accomplishment of the Work, finds any discrepancy between the Plans and the physical condition of the locality as represented in the Plans, or any such errors or omissions in respect to design or mode of construction in the Plans or in the layout as given by points and instructions, it shall be the Contractor’s duty to inform the Engineer immediately in writing, and the Engineer will promptly check the same. Any Work done after such discovery, until correction of Plans or authorization of extra Work is given, if the Engineer finds that extra Work is involved, will be done at the Contractor's risk. If extra Work is involved, the procedure shall be as provided in Section 1-04.4 of the Standard Specifications. END OF SECTION 1-04 1-05 Control of Work City of Renton 1-21 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 1-05 CONTROL OF WORK 1-05.4 Conformity With and Deviation from Plans and Stakes (******) Supplement this section as follows: If the project calls for the Contractor supplied surveying, the Contractor shall provide all required survey Work, including such Work as mentioned in Sections 1-05, 1-11 and elsewhere in these Specifications as being provided by the Engineer. The Engineer or the Contractor supplied surveyor will provide construction stakes and marks establishing lines, slopes, and grades as stipulated in Sections 1-05.4 and will perform such Work per Section 1-11. The Contractor shall assume full responsibility for detailed dimensions, elevations, and excavation slopes measured from the Engineer or the Contractor supplied surveyor furnished stakes and marks. The Contractor shall provide a work site, which has been prepared to permit construction staking to proceed in a safe and orderly manner. The Contractor shall keep the Engineer, or the Contractor supplied surveyor informed of staking requirements and provide at least 48 hour notice to allow the Engineer or the Contractor supplied surveyor adequate time for setting stakes. The Contractor shall carefully preserve stakes, marks, and other reference points, including existing monumentation, set by Contracting Agency forces. The Contractor will be charged for the costs of replacing stakes, markers and monumentation that were not to be disturbed but were destroyed or damaged by the Contractor's operations. This charge will be deducted from monies due or to become due to the Contractor. Any claim by the Contractor for extra compensation by reason of alterations or reconstruction Work allegedly due to error in the Engineer's line and grade, will not be allowed unless the original control points set by the Engineer still exist, or unless other satisfactory substantiating evidence to prove the error was furnished by the Engineer. Three consecutive points set on line or grade shall be the minimum points used to determine any variation from a straight line or grade. Any such variation shall, upon discovery, be reported to the Engineer. In the absence of such report the Contractor shall be liable for any error in alignment or grade. The Contractor shall provide all surveys required other than those to be performed by the Engineer. All survey Work shall be done in accordance with Section 1-11 SURVEYING STANDARDS of these Specifications. The Contractor shall keep updated survey field notes in a standard field book and in a format set by the Engineer, per Section 1-11.1(4). These field notes shall include all survey Work performed by the Contractor's surveyor in establishing line, grade and slopes for the construction Work. Copies of these field notes shall be provided to the Engineer upon request and upon completion of the Contract Work the field book or books shall be submitted to the Engineer and become the property of the Contracting Agency. If the survey Work provided by the Contractor does not meet the standards of the Engineer, then the Contractor shall, upon the Engineer's written request, remove the individual or individuals doing the survey Work and the survey Work will be completed by the Engineer at 1-05 Control of Work City of Renton 1-22 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions the Contractor's expense. Costs for completing the survey Work required by the Engineer will be deducted from monies due or to become due the Contractor. All costs for survey Work required to be performed by the Contractor shall be included in the prices bid for the various items which comprise the improvement or be included in the bid item for "Contractor Supplied Surveying" per lump sum if that item is included in the contracts. 1-05.4(1) Contractor Supplied Surveying (******) This is a new section as follows: When the Contract provides for Contractor Supplied Surveying, the Contractor shall supply the survey Work required for the project. The Contractor shall retain as a part of the Contractor Organization an experienced team of surveyors under the direct supervision of a professional land surveyor licensed by the State of Washington. All survey Work shall be done in accordance with Sections 1-05.4 and 1-11. The Contractor and/or the Surveyor shall inform the Engineer in writing of any errors, discrepancies, and omissions to the Plans that prevent the Contractor and/or the Surveyor from constructing the project in a manner satisfactory to the Engineer. All errors, discrepancies, and omissions must be corrected to the satisfaction of the Engineer before the survey Work may be continued. The Contractor shall coordinate his Work with the Surveyor and perform his operations in a manner to protect all survey stakes from harm. The Contractor shall inform the Surveyor of the Contractor's intent to remove any survey stakes and/or points before physically removing them. The Surveyor shall be responsible for maintaining As-Built records for the project. The Contractor shall coordinate his operations and assist the Surveyor in maintaining accurate As-Built records for the project. If the Contractor and the Surveyor fail to provide, as directed by the Engineer and/or these Plans and Specifications, accurate As-Built records and other Work the Engineer deems necessary, the Engineer may elect to provide at Contractor expense, a surveyor to provide all As-Built records and other Work as directed by the Engineer. The Engineer shall deduct expenses incurred by the Engineer-supplied surveying from monies owed to the Contractor. Payment per Section 1-04.1 for all Work and materials required for the full and complete survey Work required to complete the project and As-Built drawings shall be included in the lump sum price for "Construction Surveying, Staking, and As-Built Drawings." 1-05.4(2) Contractor Provided As-Built Information (******) This is a new section: It shall be the Contractors responsibility to record the location prior to the backfilling of the trenches, by centerline station, offset, and depth below pavement, of all existing utilities uncovered or crossed during his Work as covered under this project. 1-05 Control of Work City of Renton 1-23 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions It shall be the Contractor’s responsibility to have his Surveyor locate by northing, easting, and elevation of each major item of Work done under this contract per the survey standard of Section 1-11. Major items of Work shall include but not be limited to: Manholes, Catch basins and Inlets, Valves, vertical and Horizontal Bends, Junction boxes, Cleanouts, Side Sewers, Street Lights & Standards, Hydrants, Major Changes in Design Grade, Vaults, Culverts, Signal Poles, and Electrical Cabinets. After the completion of the Work covered by this contract, the Contractor’s Surveyor shall provide to the City the hard covered field book(s) containing the as-built notes and one set of white prints of the project drawings upon which he has plotted the notes of the Contractor locating existing utilities, and one set of white prints of the project drawings upon which he has plotted the as-built location of the new Work as he recorded in the field book(s). This drawing shall bear the Surveyor’s seal and signature certifying its accuracy. All costs for as-built Work shall be included in the Contract item "Construction Surveying, Staking, and As-Built Drawings", lump sum. 1-05.7 Removal of Defective and Unauthorized Work (October 1, 2005 APWA GSP) Supplement this section as follows: Upon written notice from the Engineer, the Contractor shall promptly replace and re-execute Work by Contractor forces, in accordance with the intent of the Contract and without expense to the Owner, and shall bear the expense of making good all Work of other contractors destroyed or damaged by such removal or replacement. If the Contractor fails to remedy defective or unauthorized work within the time specified in a written notice from the Engineer, or fails to perform any part of the Work required by the Contract Documents, the Engineer may correct and remedy such Work as may be identified in the written notice, with Contracting Agency forces or by such other means as the Contracting Agency may deem necessary. If the Contractor fails to comply with a written order to remedy what the Engineer determines to be an emergency situation, the Engineer may have the defective and unauthorized Work corrected immediately, have the rejected Work removed and replaced, or have Work the Contractor refuses to perform completed by using Contracting Agency or other forces. An emergency situation is any situation when, in the opinion of the Engineer, a delay in its remedy could be potentially unsafe, or might cause serious risk of loss or damage to the public, the Property Owner and the Property Owner’s property. Direct or indirect costs incurred by the Contracting Agency attributable to correcting and remedying defective or unauthorized Work, or Work the Contractor failed or refused to perform, shall be paid by the Contractor. Payment will be deducted by the Engineer from monies due, or to become due, the Contractor. Such direct and indirect costs shall include in particular, but without limitation, compensation for additional professional services required, and costs for repair and replacement of Work of others destroyed or damaged by correction, removal, or replacement of the Contractor’s unauthorized Work. If sufficient funds do not remain in the Contract and the Contractor does not pay the cost of such removal and storage within 10 calendar days from the date of the notice to the Contractor of the fact of such removal, the Owner may, upon an additional 10 calendar days 1-05 Control of Work City of Renton 1-24 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions written notice, sell such materials at public or private sale, and deduct all costs and expenses incurred from monies due to the Contractor, including costs of sale, and accounting to Contractor for the net proceeds remaining. The Owner may bid at any such sale. The Contractor shall be liable to the Owner for the amount of any deficiency from any funds otherwise due the Contractor. No adjustment in contract time or compensation will be allowed because of the delay in the performance of the Work attributable to the exercise of the Contracting Agency’s rights provided by this section. The rights exercised under the provisions of this section shall not diminish the Contracting Agency’s right to pursue any other avenue for additional remedy or damages with respect to the Contractor’s failure to perform the Work as required. 1-05.10 Guarantees (******) Supplement this section as follows: If within one year after the Acceptance Date of the Work by the Contracting Agency, defective and/or unauthorized Work is discovered, the Contractor shall promptly, upon written order by the Contracting Agency, return and in accordance with the Engineer’s instructions, either correct such Work, or if such Work has been rejected by the Engineer, remove it from the project site and replace it with non-defective and authorized Work, all without cost to the Contracting Agency. If the Contractor does not promptly comply with the written order to correct defective and/or unauthorized Work, or if an emergency exists, the Contracting Agency reserves the right to have defective and/or unauthorized Work corrected or removed and replaced pursuant to Section 1-05.7 “Removal of Defective and/or Unauthorized Work.” The Contractor agrees the above one year limitation shall not exclude or diminish the Contracting Agency’s rights under any law to obtain damages and recover costs resulting from defective and/or unauthorized Work discovered after one year but prior to the expiration of the legal time period set forth in RCW 4.16.040 limiting actions upon a contract in writing, or liability expressed of implied arising out of a written agreement. The Contractor shall warrant good title to all materials, supplies, and equipment purchased for, or incorporated in the Work. Nothing contained in this paragraph, however, shall defeat or impair the right of persons furnishing materials or labor, to recover under any bond given by the Contractor for their protection, or any rights under any law permitting such persons to look to funds due the Contractor in the hands of the Contracting Agency. The provisions of this paragraph shall be inserted in all subcontracts and material contracts, and notice of its provisions shall be given to all persons furnishing materials for the Work when no formal contract is entered into for such materials. 1-05 Control of Work City of Renton 1-25 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 1-05.11 Final Inspection and Operational Testing (October 1, 2005 APWA GSP) Delete and replace this section it as follows: 1-05.11(1) Substantial Completion Date When the Contractor considers the Work to be substantially complete, the Contractor shall so notify the Engineer and request the Engineer establish the Substantial Completion Date. The Contractor’s request shall list the specific items of work that remain to be completed in order to reach physical completion. The Engineer will schedule an inspection of the Work with the Contractor to determine the status of completion. The Engineer may also establish the Substantial Completion Date unilaterally. To be considered substantially complete the following conditions must be met: 1. The Contracting Agency must have full and unrestricted use and benefit of the facilities both from the operational and safety standpoint. 2. Only minor incidental Work, replacement of temporary substitute facilities, or correction of repair Work remains to reach physical completion of the Work. If after this inspection, the Engineer concurs with the Contractor that the Work is substantially complete and ready for its intended use, the Engineer, by written notice to the Contractor, will set the Substantial Completion Date. If, after this inspection the Engineer does not consider the Work substantially complete and ready for its intended use, the Engineer will, by written notice, so notify the Contractor giving the reasons therefore. Upon receipt of written notice concurring in or denying substantial completion, whichever is applicable, the Contractor shall pursue vigorously, diligently and without unauthorized interruption, the Work necessary to reach Substantial and Physical Completion. The Contractor shall provide the Engineer with a revised schedule indicating when the Contractor expects to reach substantial and physical completion of the Work. The above process shall be repeated until the Engineer establishes the Substantial Completion Date and the Contractor considers the Work physically complete and ready for Final Inspection. 1-05.11(2) Final Inspection and Physical Completion Date When the Contractor considers the Work physically complete and ready for Final Inspection, the Contractor, by Written Notice, shall request the Engineer to schedule a final inspection. The Engineer will set a date for Final Inspection. The Engineer and the Contractor will then make a final inspection and the Engineer will notify the Contractor in writing of all particulars in which the Final Inspection reveals the Work incomplete or unacceptable. The Contractor shall immediately take such corrective measures as are necessary to remedy the listed deficiencies. Corrective Work shall be pursued vigorously, diligently, and without interruption until physical completion of the listed deficiencies. This process will continue until the Engineer is satisfied the listed deficiencies have been corrected. If action to correct the listed deficiencies is not initiated within 7 days after receipt of the Written Notice listing the deficiencies, the Engineer may, upon Written Notice to the Contractor, take whatever steps are necessary to correct those deficiencies pursuant to Section 1-05.7. The Contractor will not be allowed an extension of contract time because of 1-05 Control of Work City of Renton 1-26 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions a delay in the performance of the Work attributable to the exercise of the Engineer’s right hereunder. Upon correction of all deficiencies, the Engineer will notify the Contractor and the Contracting Agency, in writing, of the date upon which the Work was considered physically complete, that date shall constitute the Physical Completion Date of the Contract, but shall not imply all the obligations of the Contractor under the Contract have been fulfilled. 1-05.11(3) Operational Testing Unless otherwise noted in the Contract Documents, the Contractor shall give the Engineer a minimum of 3 working days’ notice of the time for each test and inspection. If the inspection is by another authority than the Engineer, the Contractor shall give the Engineer a minimum of 3 working days’ notice of the date fixed for such inspection. Required certificates of inspection by other authority than the Engineer shall be secured by the Contractor. It is the intent of the Contracting Agency to have at the Physical Completion Date a complete and operable system. Therefore, when the Work involves the installation of machinery or other mechanical equipment; street lighting, electrical distribution or signal systems; irrigation systems; buildings; or other similar Work, it may be desirable for the Engineer to have the Contractor operate and test the Work for a period of time, after final inspection but prior to the physical completion date. Whenever items of Work are listed in the Contract Provisions for operational testing they shall be fully tested under operating conditions for the time period specified to ensure their acceptability prior to the Physical Completion Date. During and following the test period, the Contractor shall correct any items of workmanship, materials, or equipment which prove faulty, or that are not in first class operating condition. Equipment, electrical controls, meters, or other devices and equipment to be tested during this period shall be tested under the observation of the Engineer, so that the Engineer may determine their suitability for the purpose for which they were installed. The Physical Completion Date cannot be established until testing and corrections have been completed to the satisfaction of the Engineer. The costs for power, gas, labor, material, supplies, and everything else needed to successfully complete operational testing, shall be included in the unit contract prices related to the system being tested, unless specifically set forth otherwise in the proposal. Operational and test periods, when required by the Engineer, shall not affect a manufacturer’s guaranties or warranties furnished under the terms of the Contract. 1-05.12 Final Acceptance (******) The third and fourth sentences in paragraph 1 of this section are deleted and replaced with: The Final Acceptance date shall be that date in which the Renton City Council formally approves acceptance of the Work. 1-05.13 Superintendents, Labor and Equipment of Contractor (******) Revise the seventh paragraph in this section as follows: Whenever the Contracting Agency evaluates the Contractor’s qualifications under Section 1-02.1, it will take these reports into account. 1-05 Control of Work City of Renton 1-27 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 1-05.14 Cooperation with Other Contractors (******) Supplement this section as follows: The Contractor shall afford the Owner and other contractors working in the area reasonable opportunity for the introduction and storage of their materials and the execution of their respective Work, and shall properly connect and coordinate the Contractor’s Work with theirs. Other utilities, districts, agencies, and contractors who may have facilities within the project area are: 1. Puget Sound Energy (gas and electric) 2. AT&T Broadband 3. CenturyLink/Lumen 4. Comcast 5. Private contractors employed by adjacent property owners The Contractor shall coordinate with City of Renton on tying into any existing electrical service cabinet. The Contractor shall provide coordination with Puget Sound Energy (PSE) for the gas relocations, electrical relocations and utility pole support prior to adjacent excavation within the project limits. The draft plans for gas relocations provided by PSE are included as document No 31 of these specifications. This includes gas relocation plans completed by PSE along 122nd Ave SE in 2020, after the initial site survey. Updated plans will be provided by the City, as available. Relocated gas lines should provide up to 6-inches of clearance from the proposed structures with this project. The Owner shall provide the contractor with record drawings from PSE of the relocated gas lines for site coordination. Payment for this coordination should be included under the Mobilization bid item. Gas relocation by PSE is anticipated to start prior to the construction notice to proceed for this project but if gas relocation work becomes anticipated to take place during construction, the contractor shall be notified prior to the pre-construction meeting. The owner shall provide contractor with PSE’s construction schedule. The contractor shall sequence construction in a manner that minimizes concurrent work with PSE in the same location. Where avoidable, concurrent work with PSE shall not be basis for change order. The contractor shall notify PSE if additional adjustments to the gas mains are required during construction. A PSE inspector shall be notified at least 5-days in advance when excavation is anticipated to be within 1-ft of the gas lines. 1-05.15 Method of Serving Notices (December 30, 2022 APWA GSP) Revise the second paragraph to read: 1-05 Control of Work City of Renton 1-28 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions All correspondence from the Contractor shall be directed to the Project Engineer. All correspondence from the Contractor constituting any notification, notice of protest, notice of dispute, or other correspondence constituting notification required to be furnished under the Contract, must be in paper format, hand delivered or sent via mail delivery service to the Project Engineer's office. Electronic copies such as e-mails or electronically delivered copies of correspondence will not constitute such notice and will not comply with the requirements of the Contract. 1-05.16 Water and Power (October 1, 2005 APWA GSP) This is a new section as follows: The Contractor shall make necessary arrangements, and shall bear the costs for power and water necessary for the performance of the Work, unless the Contract includes power and water as a pay item. 1-05.17 Oral Agreements (******) This is a new section as follows: No oral agreement or conversation with any officer, agent, or employee of the Contracting Agency, either before or after execution of the Contract, shall affect or modify any of the terms or obligations contained in any of the documents comprising the Contract. Such oral agreement or conversation shall be considered as unofficial information and in no way binding upon the Contracting Agency, unless subsequently put in writing and signed by the Contracting Agency. 1-05.18 Contractor's Daily Diary (******) This is a new section as follows: The Contractor and subcontractors shall maintain and provide to the Engineer a Daily Diary Record of this Work. This diary will be created by pen entries in a hardbound diary book of the type that is commonly available through commercial outlets, or by alternative electronic method approved by the Engineer. The diary must contain the Project and Number; if the diary is in loose-leaf form, this information must appear on every page. The diary must be kept and maintained by the Contractor's designated project superintendent(s). Entries must be made on a daily basis and must accurately represent all of the project activities on each day. At a minimum, the diary shall show on a daily basis: 1. The day and date. 2. The weather conditions, including changes throughout the day. 3. A complete description of Work accomplished during the day with adequate references to the Plans and Contract Provisions, so that the reader can easily and accurately identify said Work in the Plans. Identify location/description of photographs or videos taken that day. 1-05 Control of Work City of Renton 1-29 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 4. An entry for each and every changed condition, dispute or potential dispute, incident, accident, or occurrence of any nature whatsoever which might affect the Contractor, the Owner, or any third party in any manner. 5. Listing of any materials received and stored on- or off-site by the Contractor for future installation, to include the manner of storage and protection of the same. 6. Listing of materials installed during each day. 7. List of all subcontractors working on-site during each day. 8. Listing of the number of the Contractor's employees working during each day by category of employment. 9. Listing of the Contractor's equipment working on the site during each day. Idle equipment on the site shall be listed and designated as idle. 10. Notations to explain inspections, testing, stake-out, and all other services furnished by the Owner or other party during each day. 11. Entries to verify the daily (including non-Work days) inspection and maintenance of traffic control devices and condition of the traveled roadway surfaces. The Contractor shall not allow any conditions to develop that would be hazardous to the public. 12. Any other information that serves to give an accurate and complete record of the nature, quantity, and quality of Contractor's progress on each day. 13. Plan markups showing locations and dimensions of constructed features to be used by the Engineer to produce record drawings. 14. All pages of the diary must be numbered consecutively with no omissions in page numbers. 15. Each page must be signed and dated by the Contractor's official representative on the project. The Contractor may use additional sheets separate from the diary book if necessary to provide a complete diary record, but they must be signed, dated, and labeled with project name and number. It is expressly agreed between the Contractor and the Owner that the Daily Diary maintained by the Contractor shall be the “Contractor's Book of Original Entry” for the documentation of any potential claims or disputes that might arise during this contract. Failure of the Contractor to maintain this diary in the manner described above will constitute a waiver of any such claims or disputes by the Contractor. The Engineer or other Owner’s representative on the job site will also complete a Daily Construction Report. Payment All costs to comply with this special provision are incidental to the contract and are the responsibility of the Contractor. The Contractor shall include all related costs in the associated bid prices of the contract. END OF SECTION 1-05 1-05 Control of Work City of Renton 1-30 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 1-06 Control of Material City of Renton 1-31 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 1-06 CONTROL OF MATERIAL 1-06.1(1) Approval of Materials Prior to Use (******) Supplement this section as follows: The materials and equipment lists submitted to the Engineer at the Preconstruction Conference shall include the quantity, manufacturer, and model number, if applicable, of materials and equipment to be installed under the Contract. This list will be checked by the Engineer as to conformity with the Contract Documents. The Engineer will review the lists within 10 working days, noting required corrections. The Contractor shall make required corrections and file 2 corrected copies with the Engineer within one week after receipt of required corrections. The Engineer's review and acceptance of the lists shall not relieve the Contractor from responsibility for suitability for the intended purpose, nor for deviations from the Contract Documents. Neither review of the Contractor’s submittal nor the corrections or comments provided shall create any duty owed to or a cause of action in favor of the Contractor or any Subcontractor. 1-06.1(2) Request for Approval of Materials (RAM) (******) Supplement Section 1-06.1(2) with the following: The Engineer will require up to 7 calendar days from the date each RAM is submitted until it is returned to the Contractor. The Contractor shall not proceed with the Work to incorporate the materials included in each RAM until each RAM is approved by the Engineer. As applicable, comments from the Engineer regarding a submitted RAM shall be addressed and resubmitted to the Engineer. Each resubmitted RAM will require up to 7 calendar days from the date of submission until it is returned to the Contractor. 1-06.2 Acceptance of Material 1-06.2(1) Samples and Tests for Acceptance (******) Supplement this section as follows: The finished Work shall be in accordance with approved samples. Approval of samples by the Engineer does not relieve the Contractor of responsibility for performance of the Work in accordance with the Contract Documents. 1-06.2(2) Statistical Evaluation of Materials for Acceptance (******) Supplement this section as follows: Unless stated otherwise in the special provisions, statistical evaluation will not be used by the City of Renton. 1-06.6 Recycled Materials (******) The first paragraph of Section 1-06.6 is deleted and replaced with the following: The Contractor shall make an effort to utilize recycled materials in the construction of the project, however, the use of recycled materials is not a requirement of the Contract. 1-06 Control of Material City of Renton 1-32 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Recycled aggregates shall not be installed as pipe zone bedding but may be allowed in the backfill zone if approved by the Engineer. END OF SECTION 1-06 1-07 Legal Relations and Responsibilities to the Public City of Renton 1-33 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 1-07 LEGAL RELATIONS AND RESPONSIBILITIES TO THE PUBLIC 1-07.1 Laws to be Observed (October 1, 2005 APWA GSP) Supplement this section as follows: In cases of conflict between different safety regulations, the more stringent regulation shall apply. The Washington State Department of Labor and Industries shall be the sole and paramount administrative agency responsible for the administration of the provisions of the Washington Industrial Safety and Health Act of 1973 (WISHA). The Contractor shall maintain at the project site office, or other well-known place at the project site, all articles necessary for providing first aid to the injured. The Contractor shall establish, publish, and make known to all employees, procedures for ensuring immediate removal to a hospital or doctor’s care, and persons, including employees, who may have been injured on the project site. Employees should not be permitted to Work on the project site before the Contractor has established and made known procedures for removal of injured persons to a hospital or a doctor’s care. The Contractor shall have sole responsibility for the safety, efficiency, and adequacy of the Contractor’s plant, appliances, and methods, and for any damage or injury resulting from their failure, or improper maintenance, use, or operation. The Contractor shall be solely and completely responsible for the conditions of the project site, including safety for all persons and property in the performance of the Work. This requirement shall apply continuously, and not be limited to normal working hours. The required or implied duty of the Engineer to conduct construction review of the Contractor’s performance does not, and shall not, be intended to include review and adequacy of the Contractor’s safety measures, in, on, or near the project site. The Contractor shall erect and properly maintain, at all times, as required by the conditions and progress of the Work, all necessary safeguards for protection of workers and the public; shall post danger signs warning against known or unusual hazards; and shall designate as Safety Supervisor, a responsible employee on the construction site whose duty shall be the enforcement of safety. The name and position of such person so designated shall be reported in writing to the Engineer by the Contractor. The Contractor shall, at all times, enforce strict discipline and good order among all employees and shall not employ any person unfit or not skilled in the Work assigned to him/her. Necessary sanitation conveniences for the use of the workers on the job, properly secluded from public observation, shall be provided and maintained by the Contractor. In the event of public health emergencies of a similar nature to the COVID-19 pandemic, the Contractor shall prepare a project specific comprehensive exposure control, mitigation, and recovery plan (EMCP) in conformance with Section 1-07.4 and the Washington State Governor’s Job Site Requirements, as well as any statutes that may be enacted related to job site protocols during a public health emergency. 1-07 Legal Relations and Responsibilities to the Public City of Renton 1-34 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 1-07.2 State Sales Tax (June 27, 2011 APWA GSP) Delete this section, including its sub-sections, in its entirety and replace it as follows: 1-07.2 State Sales Tax The Washington State Department of Revenue has issued special rules on the state sales tax. Sections 1-07.2(1) through 1-07.2(4) are meant to clarify those rules. The Contractor should contact the Washington State Department of Revenue for answers to questions in this area. The Contracting Agency will not adjust its payment if the Contractor bases a bid on a misunderstood tax liability. The Contractor shall include all Contractor-paid taxes in the unit bid prices or other contract amounts. In some cases, however, state retail sales tax will not be included. Section 1- 07.2(3) describes this exception. The Contracting Agency will pay the retained percentage only if the Contractor has obtained from the Washington State Department of Revenue a certificate showing that all contract- related taxes have been paid (RCW 60.28.050). The Contracting Agency may deduct from its payments to the Contractor any amount the Contractor may owe the Washington State Department of Revenue, whether the amount owed relates to this contract or not. Any amount so deducted will be paid into the proper state fund. 1-07.2(1) State Sales Tax – Rule 171 WAC 458-20-171, and its related rules, apply to building, repairing, or improving streets, roads, etc., which are owned by a municipal corporation, or political subdivision of the state, or by the United States, and which are used primarily for foot or vehicular traffic. This includes storm or combined sewer systems within and included as part of the street or road drainage system, and power lines when such are part of the roadway lighting system. For Work performed in such cases, the Contractor shall include Washington State Retail Sales Taxes in the various unit bid item prices, or other contract amounts, including those that the Contractor pays on the purchase of the materials, equipment, or supplies used or consumed in doing the Work. 1-07.2(2) State Sales Tax – Rule 170 WAC 458-20-170, and its related rules, applies to the constructing and repairing of new or existing buildings, or other structures, upon real property. This includes, but is not limited to; the construction of streets, roads, highways, etc., owned by the state of Washington; water mains and their appurtenances; sanitary sewers and sewage disposal systems unless such sewers and disposal systems are within, and a part of, a street or road drainage system; telephone, telegraph, electrical power distribution lines, or other conduits or lines in or above streets or roads, unless such power lines become a part of a street or road lighting system; and installing or attaching of any article of tangible personal property in or to real property, whether or not such personal property becomes a part of the realty by virtue of installation. For Work performed in such cases, the Contractor shall collect from the Contracting Agency, retail sales tax on the full contract price. The Contracting Agency will automatically add this sales tax to each payment to the Contractor. For this reason, the Contractor shall not include the retail sales tax in the unit bid item prices, or in any other contract amount subject to Rule 170, with the following exception. 1-07 Legal Relations and Responsibilities to the Public City of Renton 1-35 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Exception: The Contracting Agency will not add in sales tax for a payment the Contractor or a subcontractor makes on the purchase or rental of tools, machinery, equipment, or consumable supplies not integrated into the project. Such sales taxes shall be included in the unit bid item prices or in any other contract amount. 1-07.2(3) Services The Contractor shall not collect retail sales tax from the Contracting Agency on any contract wholly for professional or other services (as defined in Washington State Department of Revenue Rules 138 and 244). 1-07.5 Environmental Regulations 1-07.5(1) General (******) Section 1-07.5(1) is supplemented with the following: Protection of the Environment: No construction related activity shall contribute to the degradation of the environment, allow material to enter surface or ground waters, or allow particulate emissions to the atmosphere, which exceed state or federal standards. Any actions that potentially allow a discharge to state waters must have prior approval of the Washington State Department of Ecology. 1-07.6 Permits and Licenses (******) Supplement this section as follows: The Contractor shall ensure that all necessary permits are obtained, and is responsible for reviewing all permits to become familiar with the requirements. The Contractor and all subcontractors of any tier must obtain a City of Renton Business License (Contractor). The permits, easements, and right of entry documents that have been acquired are available for inspection and review. The Contractor shall be required to comply with all conditions of the permits, easements, and rights of entry, at no additional cost to the Owner. The Contractor is required to indemnify the Owner from claims on all easements and rights of entry. All other permits, licenses, etc., shall be the responsibility of the Contractor. The Contractor shall comply with the special provisions and requirements of each. Permits, permission under franchises, licenses and bonds of a temporary nature necessary for and during the prosecution of the Work, and inspection fees in connection therewith shall be secured and paid for by the Contractor. If the Owner is required to secure such permits, permission under franchises, licenses and bonds, and pay the fees, the costs incurred by the Owner thereby shall be charged against the Contractor and deducted from any funds otherwise due the Contractor. The Contractor is cautioned to review all permits and other Contract Documents and schedule the work activities appropriately to complete the work within the number of days stated in the Contract Document. No additional compensation or extensions to time will be 1-07 Legal Relations and Responsibilities to the Public City of Renton 1-36 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions granted to the Contractor due to the time constraints imposed by such documents. The Contractor shall assume all responsibility for meeting all requirements of all permits. Any fines or penalties incurred by Contracting Agency for not meeting state water quality standards and/or lack of stormwater pollution prevention on this Project shall be deducted from monies otherwise due to Contractor. Any fines assessed directly to Contractor shall be paid directly to the fining authority, at the Contractor’s own cost. 1-07.7 Load Limits (March 13, 1995 WSDOT GSP) (******) Section 1-07.7 is supplemented with the following: If the sources of materials provided by the Contractor necessitates hauling over roads other than State Highways, the Contractor shall, at the Contractor’s expense, make all arrangements for the use of the haul routes. 1-07.9 Wages 1-07.9(3) Apprentices (***** Renton GSP) Supplement this section with the following: Apprentice Utilization This Contract includes an Apprentice Utilization Requirement. Fifteen percent or more of project Labor Hours shall be performed by Apprentices unless Good Faith Efforts are accepted. Apprentice Utilization will be determined using the Department of Labor and Industries (L&I) online Prevailing Wage Intent & Affidavit (PWIA) system. Definitions For the purposes of this specification the following definitions apply: 1. Apprentice is a person enrolled in a State-approved Apprenticeship Training Program. 2. Apprentice Utilization is the apprentice labor hours, on the project, expressed as a percentage of project Labor Hours based on certified payrolls or the affidavits of wages paid, whichever is least. The percentage is not rounded up. 3. Apprentice Utilization Requirement is the minimum percentage of apprentice labor hours required by the Contract. 4. Good Faith Effort(s) (GFE) describes the Contractor’s efforts to meet the Apprentice Utilization Requirement including but not limited to the specific steps as described elsewhere in this specification. 5. Labor Hours are the total hours performed by all workers receiving an hourly wage who are subject to prevailing wage requirements for work performed on the Contract as defined by RCW 39.04.310. Labor Hours are determined based on the scope of work 1-07 Legal Relations and Responsibilities to the Public City of Renton 1-37 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions performed by the individuals, rather than the title of their occupations in accordance with WAC 296-127. 6. State-approved Apprenticeship Training Program is an apprenticeship training program approved by the Washington State Apprenticeship and Training Council (WSATC). 7. Apprentice Wage Rates are the applicable wage rates that are to be paid for an apprentice registered in a training program, separate from Journey Level rates, as set by the Washington State Apprenticeship and Training Council (WSATC) and Washington State Department of Labor and Industries (L&I). Electronic Reporting The Contractor shall use the PWIA System to submit the “Apprentice Utilization Plan”. Reporting instructions are available in the application. When using the PWIA System to submit payroll data, the Contractor shall also submit on a monthly basis all information requested on the Utilization tab. The Contractor shall complete the Report for itself and its subcontractors. Apprentice Utilization Plan The Contractor shall submit an “Apprentice Utilization Plan” by filling out the Apprentice Utilization Plan Form (WSDOT Form 424-004) within 30 calendar days of execution, however no later than the preconstruction meeting, demonstrating how and when they intend to achieve the Apprentice Utilization Requirement. The Plan shall be in sufficient detail for the Engineer to track the Contractor’s progress in meeting the utilization requirements. An Apprentice Utilization Plan shall be updated and resubmitted as the Work progresses with each progress payment and when requested by the Engineer. If the Contractor is unable to demonstrate the ability to meet the Apprentice Utilization Requirement with their initial Apprentice Utilization Plan submission, an effort must be made to find additional registered apprentices to perform on the contract. If after attempts have been made at every tier and every scope, the Contractor must submit GFE documentation to the Contracting Agency. The Contractor shall actively seek out opportunities to meet the Apprentice Utilization Requirement during the construction Work. Contacts The Contractor may obtain information on State-approved Apprenticeship Training Programs by using the Apprentice Registration and Tracking System (ARTS) https://secure.lni.wa.gov/arts-public/#/program-search or contacting the Department of Labor and Industries directly at: Specialty Compliance and Services Division, Apprenticeship Section, P.O. Box 44530, Olympia, WA 98504-4530 or by phone at (360) 902-5320. Compliance The Contractor is expected to make attempts to employ Apprentices and shall include the requirement in any subcontracts at any tier. In the event that the Contractor is unable to achieve the Apprentice Utilization Requirement, the Contractor shall submit GFE documentation demonstrating the efforts and attempts they made. Final GFE documentation 1-07 Legal Relations and Responsibilities to the Public City of Renton 1-38 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions shall be submitted to the Contracting Agency after Substantial Completion but no later than 30 days after Physical Completion. If the Contractor fails to actively attempt to employ Apprentices, submit GFE documentation, or if the Engineer does not approve the GFE, the Contractor will be assessed a penalty. The Engineer will provide the Contractor with a written notice at Final Acceptance of the project informing the Contractor of the failure to comply with this specification which will include a calculation of the penalty to be assessed as provided for in the Payment section in this special provision. If the Contractor achieves the required Apprentice Utilization an incentive will be assessed with Final Payment. Good Faith Efforts The GFE shall document the attempts (efforts) the Contractor (and any subcontractor at any tier) made to meet the Apprentice Utilization Requirement. Emails, letters, or other written communications with letterhead, titles, and contact information are required. Documentation must include one or more of the following accepted GFEs: 1. Demonstrated Lack of Availability of Apprentices. Correspondence from State- approved Apprenticeship Training Program(s), with project specific responses confirming there is a lack of availability of Apprentices for this project. 2. Demonstrated Disproportionate Ratio of Material/Equipment/Products to Labor Hours. Documentation explaining the bid includes a disproportionate high cost of material/equipment/products to Labor Hours. (E.g., a $2 M estimated contract includes $1 M or more in procurement costs of equipment to be installed.) 3. Demonstrated Lack of Necessary Labor Hours. Correspondence from a State- approved Apprentice Training Programs confirming there is not enough time in the project to meet required journey level to apprentice training ratios. 4. Demonstrated Lack of Available Approved Programs. Correspondence from State- approved Apprentice Training Programs, confirming there are no programs that train for the scopes included/anticipated on the project. Contractor and state programs to submit training program detail needs and details that could be used for future program creation. 5. Funding Precedent. Documentation that shows conflicting, more restrictive, or precedent requirements for other training on the Project. Examples include, but are not limited to, Tribal Employment Rights (TERO), Federal Training Hours, or Special Training that affect the ability to use state-registered apprentices. 6. Warranty Work. Documentation from Original Equipment Manufacturers, or similar, confirming that work performed must only be completed by certified journey-level installers or risk voiding warranty, or similar. 7. Other Effort. The Contractor may submit other evidence, documentation, or rationale for not being able to achieve the required Apprentice Utilization that are not covered in the other efforts named. Other efforts will still need to be corroborated by an independent, knowledgeable third-party. 1-07 Legal Relations and Responsibilities to the Public City of Renton 1-39 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Contractors may receive a GFE credit for graduated Apprentice hours through the end of the calendar year for all projects worked on as long as the Apprentice remains continuously employed with the same Contractor/subcontractor they were working for when they graduated. If an Apprentice graduates during employment on a project of significant duration, they may be counted towards a GFE credit for up to one year after their graduation or until the end of the project (whichever comes first). Determination of whether Contract requirements were met in good faith will be made by subtracting the hours from the journeyman total reported hours for the project and adding them to the apprentice hour total. If the new utilization percentage meets the Contract requirement, the Contractor will be reported as meeting the requirement in good faith. Approving Good Faith Efforts The Contracting Agency will review submitted Good Faith Efforts and issue a determination. The Engineer may request additional information, documentation, evidence or similar in order to approve such efforts. A determination by the Engineer is final. The approved Good Faith Efforts will be loaded into the PWIA system by the Contracting Agency. Payment Payment will be made for the following Bid Items: “Apprenticeship Incentive”, by calculation. An incentive of $2,000.00 will be assessed with the Final Payment for Contractors who meet the Apprentice Utilization Requirement without a reduction by Good Faith Effort. For the purpose of providing a common proposal for all bidders, the Contracting Agency has entered an amount in the proposal to become a part of the total bid by the Contractor. “Apprenticeship Penalty”, by calculation. Apprenticeship Hours will be measured for each hour of work performed by an apprentice as shown on the Monthly Apprentice Utilization Report, based on certified payrolls or the affidavits of wages paid, whichever is least. The percentage is not rounded up. For the purpose of providing a common proposal for all bidders, the Contracting Agency has entered a $0 amount in the proposal to become a part of the total bid by the Contractor. Any penalty assessed will be entered in the progress payment as a negative amount. When the Contractor fails to meet the Apprenticeship goal of 15%, a penalty will be assessed for each hour that is not achieved, unless a Good Faith Effort is approved by the Contracting Agency. The Contractor agrees to pay the penalty as described above and to authorize the Engineer to deduct this penalty from any money due or coming due to the Contractor. 1-07 Legal Relations and Responsibilities to the Public City of Renton 1-40 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Apprenticeship Penalty will be calculated as described below: Apprenticeship Utilization Penalty 14-14.99% $2,000 13-13.99% $4,000 12-12.99% $6,000 11-11.99% $8,000 10-10.99% $10,000 9-9.99% $12,000 8-8.99% $14,000 7-7.99% $16,000 6-6.99% $18,000 5-5.99% $20,000 4-4.99% $22,000 3-3.99% $24,000 2-2.99% $26,000 1-1.99% $28,000 0-0.99% $30,000 The Contractor shall include all related costs in the unit Bid prices of the Contract, included but not limited to implementing, developing, documenting, and administering an apprenticeship utilization program, recording and reporting hours and all other costs to comply with this provision. 1-07.9(5) Required Documents 1-07.9(5)A General (July 8, 2024 APWA GSP) This section is revised to read as follows: All Statements of Intent to Pay Prevailing Wages, Affidavits of Wages Paid and Certified Payrolls, including a signed Statement of Compliance for Federal-aid projects, shall be submitted to the Engineer and to the State L&I online Prevailing Wage Intent & Affidavit (PWIA) system. When apprenticeship is a requirement of the contract, include in PWIA all apprentices. 1-07.9(5)C Certified Payroll (******) Delete the first paragraph, and replace it as follows: The Contractor must submit weekly-certified payrolls for the Contractor and all subcontractors and lower tier subcontractors, regardless of project’s funding source. 1-07.11 Requirements for Non-Discrimination 1-07.11(11) City of Renton Affidavit of Compliance (******) This is a new section as follows: 1-07 Legal Relations and Responsibilities to the Public City of Renton 1-41 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Each Contractor, Subcontractor, Consultant, and or Supplier shall complete and submit a copy of the “City of Renton Fair Practices Policy Affidavit of Compliance”. A copy of this document will be bound in the bid documents. 1-07.13 Contractor’s Responsibility for Work 1-07.13(1) General (******) Supplement this section as follows: During periods of unfavorable conditions or inclement weather, the Contractor shall pursue only such portions of the Work that will not be at risk of incurring damage. No portion of the Work whose satisfactory quality or efficiency will be affected by unfavorable conditions shall be constructed while these conditions exist, unless the Contractor shall be able to overcome said unfavorable conditions by special means or precautions acceptable to the Engineer. 1-07.15 Temporary Water Pollution Prevention (******) Delete the first paragraph, and replace it as follows: The Contractor shall perform all Work in strict accordance with all Federal, State, and local laws and regulations governing waters of the State, as well as permits acquired for the project. The Contractor shall prepare a final Temporary Erosion and Sediment Control Plan (TESCP) and a final Stormwater Pollution Prevention Plan (SWPPP) to be in full compliance with RMC 4-6-30. The TESCP and SWPPP shall be developed in accordance with the erosion control standards contained in the most current City of Renton Surface Water Design Manual and the King County Stormwater Pollution Prevention Manual. The plan shall include any assumptions, detailed calculations, sketches, and sequencing. The plan shall be signed and stamped by a Washington State Professional Engineer. A TESC supervisor shall be designated by the Contractor, whose name and phone number shall be given to the Engineer at the Preconstruction Conference. The TESC supervisor must be CESCL certified in accordance with NPDES permit requirements. The plan shall be submitted for approval to the City within 3 days prior to the preconstruction meeting. The TESCP shall include the various configurations that may be necessary to adequately control erosion and sediment at the site during the various stages of construction. Design of dewatering, water control, bypass systems, and temporary erosion and sediment control during construction shall be the responsibility of the Contractor. Best Management Practices shall be used as required to address TESC and as outlined in the King County Stormwater Pollution Prevention Manual. At a minimum, the plan shall contain: 1-07 Legal Relations and Responsibilities to the Public City of Renton 1-42 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Manufacturer’s data and detailed plans for the erosion control products specified in the plan. Plan for temporary pipe system diversions. This shall include a description of when the piping will be used, pipe material, locations, elevations, plan and profile views, inlet and outlet protection, hydraulic capacity, and details of important design features. Plan for collecting, pumping and pipe surface storm water runoff, dewatering discharge, and seepage from the source to the storage facility or acceptable discharge location. The plan shall be shown in phases to coincide with the phases of construction. The plan shall include: a. Layout and details of system. b. Diversion systems manufacturer’s data and material submittals. c. Pump and pipe types, sizes, manufacturer’s data, and design criteria for pump sizing. d. Flow calculations for storm water, seepage, and dewatering pump discharge. Schedule and sketch of location for dewatering systems. Pumps shall be sized to pump storm water runoff for the tributary area plus an allowance for groundwater and surface seepage. Each pump area location shall be equipped with two pumps meeting the capacity requirement, in case one is non-operational. e. Source of power for pumps, description of schedule and fueling requirements, storage location, and methods. Manufacturer’s literature and test results (certificates) on the temporary silt fence, erosion control matting, riprap gradations, and any other necessary erosion control materials. Planned installation and maintenance schedule for temporary erosion and sedimentation control facilities. Indicate locations and outlets of dewatering systems. The boundaries of the clearing limits, sensitive areas and their buffers, and areas of vegetation preservation and tree retention. The Contractor shall also prepare a final SWPPP. The SWPPP must meet the requirements of the Department of Ecology’s NPDES and State Waste Discharge General Permit for Stormwater Discharges Associated with Construction Activity (General Permit). The SWPPP shall include, and modify as necessary, the Site Preparation and Erosion Control Plan drawings provided as part of the Contract Plans. The Contractor shall prepare, review, and modify the SWPPP as necessary to be consistent with the actual work schedule, sequencing, and construction methods that will be used on the project. The Contractor’s SWPPP shall meet the requirements of the general permit. The Contractor shall: Furnish, install, operate, and maintain necessary machinery, appurtenances, and equipment to keep excavations free of water during construction; Dewater and dispose of water in a manner that will not cause injury to public and private property, as well as keep sediment-laden water from entering the City surface water system or violate applicable water standards; 1-07 Legal Relations and Responsibilities to the Public City of Renton 1-43 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Keep sufficient pumping equipment and machinery on hand at all times for emergencies, including electric power failures; Keep experienced personnel available at all times to operate pumping equipment, machinery and appliances; Not shut down dewatering systems between shifts, on holidays and weekends, nor during work stoppages without prior authorization by the Engineer; Control groundwater to prevent softening of bottoms of excavations, or formation of “quick” conditions or “boils”; Design and operate dewatering system that will not remove natural soils; Keep excavations free of water during excavation, construction of structures, installation of pipelines, placing of structures, backfill, and placing and curing of concrete; and Control surface water runoff to prevent entry and collection in excavations. As construction progresses and unexpected or seasonal conditions dictate, the Contractor shall anticipate that more water pollution/erosion control measures will be necessary. It shall be the obligation and responsibility of the Contractor to revise or supplement the pollution/erosion control measures as may be needed to protect the work, adjacent properties, storm drains, streams, and other water bodies. At all times, there must be material on the job site to handle any spills caused by the Contractor, such as tack, oils, diesel, etc. Materials would include, but not be limited to, oil absorbent pads and “kitty litter.” The Contractor must supply said materials at his expense and, in the event of a spill, be responsible for cleanup and disposal of contaminated materials. In addition, the SWPPP shall outline the procedures to be used to prevent high pH storm water or dewatering water from entering surface waters. The plan shall include how the pH of the water will be maintained between pH 6.5 and pH 8.5 prior to being discharged from the project or entering surface waters. Prior to beginning any concrete or grinding work, the Contractor shall submit the plan, for the Engineer’s review and approval. An Ecology template is available to the Contractor for producing the SWPPP, using project- specific information added by the Contractor. The template and instructions are available at: http://www.ecy.wa.gov/programs/wq/stormwater/construction. The Engineer’s review and any resulting approval of the Contractor’s SWPPP and TESCP will be only regarding conformance with the specification requirement that the Contractor have the plans prepared by a CPESC or professional Civil Engineer who has expertise in the type of facilities and that the SWPPP and TESCP include the items specified for such plans. The Contractor shall be solely responsible for the adequacy of the SWPPP and TESCP and if erosion sediment, and other pollutant control measures in deviation or addition to those described in the SWPPP become necessary to minimize erosion and prevent storm water contamination from sediment and other pollutants, the Contractor shall prepare and submit a revised SWPPP to the Engineer for review as specified in the original plan. 1-07 Legal Relations and Responsibilities to the Public City of Renton 1-44 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions The Owner will not be liable to the Contractor for failure to accept all or any portion of an originally submitted or revised SWPPP, nor for any delays to the Work due to the Contractor’s failure to submit and implement an acceptable SWPPP. 1-07.16 Protection and Restoration of Property 1-07.16(1) Private/Public Property (******) Supplement this section as follows: The Contracting Agency will obtain all easements and franchises required for the project. The Contractor shall limit his operation to the areas obtained and shall not trespass on private property. The Contracting Agency may provide certain lands, as indicated in connection with the Work under the Contract together with the right of access to such lands. The Contractor shall not unreasonably encumber the premises with his equipment or materials. The Contractor shall provide, with no liability to the Contracting Agency, any additional land and access thereto not shown or described that may be required for temporary construction facilities or storage of materials. He shall construct all access roads, detour roads, or other temporary Work as required by his operations. The Contractor shall confine his equipment, storage of material, and operation of his workers to those areas shown and described and such additional areas as he may provide. General: All construction Work under this contract on easements, right-of-way, over private property or franchise, shall be confined to the limits of such easements, right- of-way or franchise. All Work shall be accomplished so as to cause the least amount of disturbance and a minimum amount of damage. The Contractor shall schedule his Work so that trenches across easements shall not be left open during weekends or holidays and trenches shall not be open for more than 48 hours. Structures: The Contractor shall remove such existing structures as may be necessary for the performance of the Work and, if required, shall rebuild the structures thus removed in as good a condition as found. He shall also repair all existing structures that may be damaged as a result of the Work under this contract. Easements, cultivated areas, and other surface improvements: All cultivated areas, either agricultural or lawns, and other surface improvements which are damaged by actions of the Contractor shall be restored as nearly as possible to their original condition. Prior to excavation on an easement or private right-of-way, the Contractor shall strip topsoil from the trench or construction area and stockpile it in such a manner that it may be replaced by him, upon completion of construction. Ornamental trees and shrubbery shall be carefully removed with the earth surrounding their roots wrapped in burlap and replanted in their original positions within 48 hours. a. All shrubbery or trees destroyed or damaged, shall be replaced by the Contractor with material of equal quality at no additional cost to the Contracting Agency. In the event that it is necessary to trench through any lawn area, the sod shall be carefully cut and rolled and replaced after the trenches have been backfilled. The lawn area shall be cleaned by sweeping or other means, of all earth and debris. b. The Contractor shall use rubber wheel equipment similar to the small tractor-type backhoes used by side sewer contractors for all Work, including excavation and 1-07 Legal Relations and Responsibilities to the Public City of Renton 1-45 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions backfill, on easements or rights-of-way, which have lawn areas. All fences, markers, mailboxes, or other temporary obstacles shall be removed by the Contractor and immediately replace, after the trench is backfilled, in their original position. The Contractor shall notify the Contracting Agency and Property Owner at least 24 hours in advance of any Work done on easements or rights-of-way. c. Damage to existing structures outside of easement areas that may result from dewatering and/or other construction activity under this contract shall be restored to their original condition or better. The original condition shall be established by photographs taken and/or inspection made prior to construction. All such Work shall be done to the satisfaction of the Property Owners and the Contracting Agency at the expense of the Contractor. Streets: The Contractor will assume all responsibility of restoration of the surface of all streets (traveled ways) used by him if damaged. a. In the event the Contractor does not have labor or material immediately available to make necessary repairs, the Contractor shall so inform the Contracting Agency. The Contracting Agency will make the necessary repairs and the cost of such repairs shall be paid by the Contractor. b. The Contractor is responsible for identifying and documenting any damage that is pre-existing or caused by others. Restoration of excavation in City streets shall be done in accordance with the City of Renton Trench Restoration Requirements, which is available on the City of Renton website or at the Public Works Department Customer Services counter on the 6th floor, Renton City Hall, 1055 S Grady Way. 1-07.16(2) Vegetation Protection and Restoration (******) Supplement this section as follows: The Contractor shall be responsible for the protection of tops, major branches, trunks, and roots of existing trees, shrubs and other plants that are marked within, and just outside of the limits of construction. Existing trees to remain in place and that are potentially subject to construction damage shall be boxed, fenced, or otherwise protected before any work is started in the vicinity of the trees. Any grading or other earthwork shown on the Contract Plans near trees that are to be saved shall not occur within the drip line of the tree canopy to protect the tree’s root system unless approved otherwise by the Engineer. No soil disturbance shall take place prior to the placement and installation of tree protection. Immediately following site clearing and grading the Owner’s Representative will make final determination on the satisfaction of tree protection and specific requirements based on the trees health, construction limits, and impacts to major roots and the soil condition. Exercise care when excavating trenches near existing trees. Where roots are two inches (2") and greater in diameter hand excavate and tunnel. When large roots are exposed, wrap with heavy burlap for protection and prevent excessive drying. Trenches dug by machines adjacent to trees having roots two inches (2") and less in diameter shall have the sides hand trimmed making a clean cut of the roots. Trenches having exposed tree roots shall be back- filled within twenty-four (24) hours unless adequately protected with moist burlap or canvas. 1-07 Legal Relations and Responsibilities to the Public City of Renton 1-46 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions The cutting of roots 2-inches and larger should be avoided. Potential root pruning needs shall be reviewed in advance with the City’s Representative to minimize potential root fracturing and other damage. Severed roots of retained trees shall be cut off cleanly with a sharp saw or pruning shears. Applying pruning paint on trunks or root wounds shall not be permitted. Severed roots shall be covered immediately after final pruning with moist soil or burlap and covered with mulch until they can be covered with soil. Excavation operators shall take extreme care not to hook roots and pull them back towards retained trees. In all cases, the excavator shall remain outside of the Critical Root Zone (CRZ) boundary, shown on the Contract Plans or as directed by the Engineer. No pruning of trees will be allowed without prior approval from the Engineer, in which case, all pruning shall be done by an International Society of Arboriculture Certified Arborist, to the standards of ANSI A300 American Standard for Pruning. Existing landscaping outside the construction limits, including but not limited to, sod, rockeries, beauty bark, decorative gravel or rock, bushes, and shrubbery shall be protected from damage. The property owners shall be responsible for removing and/or relocating irrigation equipment, trees, shrubs, curbing, ornamental plants, and any other decorative landscaping materials within the construction limits that they wish to save. The Contractor shall give property owners 10 days’ written notice prior to removing landscaping materials. All landscaping materials that remain in the construction limits after that time period shall be removed and disposed of, by the Contractor, in accordance with Section 2-01 of the Standard Specifications, these Special Provisions, and the Plans. The Contractor shall have on-site at all times during construction current copies of the Washington State Noxious Weed List and Monitor List (http://www.nwcb.wa.gov) and the King County noxious weed list (https://www.kingcounty.gov/services/environment/animals- and-plants/noxious-weeds/laws/list.aspx). 1-07.16(3) Archaeological and Historical Objects (******) Supplement this section as follows: There are documented archaeological sites within the general vicinity of the project and the Washington Department of Archaeology and Historic Preservation assesses a potential for encountering archaeological sites within the project’s Area of Potential Impacts. An archeologist has prepared an Inadvertent Discovery Plan for the project. The Contractor shall work in accordance with this plan, the SEPA, and any applicable federal, state, and local laws at all times. 1-07.17 Utilities and Similar Facilities (******) Supplement this section as follows: Existing utilities indicated in the Plans have been plotted from the best information available to the Engineer. Information and data shown or indicated in the Contract Documents with respect to existing underground utilities or services at, or contiguous to, the project site are based on information and data furnished to the Owner and the Engineer by owners of such underground facilities or others, and the Owner and the Engineer do not assume 1-07 Legal Relations and Responsibilities to the Public City of Renton 1-47 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions responsibility for the accuracy or completeness thereof. It is to be understood that other aboveground or underground facilities not shown in the Plans may be encountered during the course of the Work. All utility valves, manholes, vaults, pull boxes, or other underground utilities that require access shall be conspicuously marked in a fashion acceptable to the Owner and the Engineer by the Contractor, to allow their location to be determined by the Engineer or utility personnel under adverse conditions (e.g. inclement weather or darkness). Where underground main distribution conduits, such as water, gas, sewer, electric power, or telephone, are shown on the Plans, the Contractor, for the purpose of preparing his bid, shall assume that every property parcel will be served by a service connection for each type of utility. The Contractor shall conduct a utility coordination meeting with the utility companies concerning any possible conflict prior to commencing excavation in any area and submit documentation of said meeting to the Engineer. The Contractor shall resolve all crossing and clearance problems with the utility company concerned. No excavation shall begin until all known facilities, in the vicinity of the excavation area, have been located and marked. All costs for utility coordination, discussions, and meetings shall be considered incidental to the Contract and no additional compensation will be made. In addition to the Contractor having all utilities field marked before starting Work, the Contractor shall have all utilities field marked after they are relocated in conjunction with this project. Call Before You Dig The 48-Hour Locators 1-800-424-5555 At least 2 and not more than 10 working days prior to commencing any excavations for utility potholing or for any other purpose under this Contract, the Contractor shall notify the Underground Utilities Location Center by telephone of the planned excavation and progress schedule. The Contractor is also warned that there may be utilities on the project that are not part of the One Call system. They must be contacted directly by the Contractor for locations. The Contractor shall make arrangements 48 hours in advance with respective utility owners to have a representative present when their utility is exposed or modified, if the utility chooses to do so. Utility Adjustments and Conflicts Existing utilities for telephone, power, gas, water, and television cable shall be adjusted or relocated by the appropriate utility company, unless otherwise noted in the Plans. These adjustments may be completed before the Contractor begins Work, or may be performed in conjunction with the Contract Work. The Contractor shall be entirely responsible for coordination with the utility companies and arranging for the movement or adjustment, either temporary or permanent, of their facilities within the project limits. See also Section 1-05.14 of these Special Provisions. 1-07 Legal Relations and Responsibilities to the Public City of Renton 1-48 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions If or when utility conflicts occur, the Contractor shall continue the construction process on other aspects of the project whenever possible. The Contractor shall include in the Base Bid all necessary communication and meetings with the utility companies, and all necessary advance notification to utility companies to keep the project on schedule and avoid delays. No additional compensation will be made to the Contractor for reason of delay caused by the actions of any utility company, and the Contractor shall consider such costs to be incidental to the other items of the Contract. Utility Potholing Potholing may be included as a bid item for use in determining the location of existing utilities in advance of the Contractor's operations. If potholing is not included as a bid item then it shall be considered incidental to other Work. The Contractor shall submit all potholing requests to the Engineer for approval, at least 2 working days before potholing is scheduled. Additionally, the Contractor shall provide potholing at the Engineer's request. In no way shall the Work described under Utility Potholing relieve the Contractor of any of the responsibilities described in Section 1-07.17 of the Standard Specifications and Special Provisions, and elsewhere in the Contract Documents. 1-07.17(3) Site Specific Potholing (******) This is a new section as follows: Site Specific Potholing is intended to be additional potholing as identified in the Plans or as directed by the Engineer, which is separate from and in addition to potholing included as incidental for utility installation. The Contractor shall perform exploratory excavations (potholing) as required to collect as-built information and verify the depth, location, size, and material of existing underground utilities at the identified locations. The Contractor shall perform all potholing identified on the plans prior to any construction to allow for any potential design modifications. The Contractor is still responsible to verify depth, location, alignment, and size of all existing utilities either specifically called for or not on the plans. The Contractor shall immediately notify the Engineer if field conditions differ from the expected conditions shown in the Contract Drawings. For these utilities, the Contractor shall allow the engineer 10 working days after written results are received to allow for minor design modification as necessary. The Contractor shall use the information obtained by potholing for procurement of suitable materials to revise the work accordingly, where required by the Contract. Upon completion of the excavation, the material can be used for temporary restoration if the material is satisfactory and with prior authorization from the Engineer. Where underground utilities are found to be in the way of construction, such condition shall not be deemed to be a changed or differing site condition, and if necessary, pipe alignment or grade shall be modified. No payment will be made unless potholing has been performed prior to trench excavation and witnessed by the Engineer or City Inspector. Different utilities may be found to occupy a common trench. Any two or more utilities separated by 3 feet or less shall constitute one locate. Where multiple utilities exist in close proximity, the Contractor shall be paid for one locate for every 5 feet of exploration trench. The quantity for this item is included to provide a common proposal for bid purposes. The actual quantity used in construction may vary from that amount. The unit price will not be adjusted if the actual quantity used varies by more than 25 percent. 1-07 Legal Relations and Responsibilities to the Public City of Renton 1-49 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions The contractor shall perform for this potholing a minimum of twenty working days prior to crossing to allow for potential revisions. The contractor shall not have cause for claim of down-time or any other additional costs associated with ‘waiting’ if the owner provides design revisions (related to the information supplied per this section) within ten working days after the contractor provides the surveyed elevations. In no way shall the Work described under Site Specific Potholing relieve the Contractor of any of the responsibilities described in Section 1-07.17 of the Standard Specifications and Special Provisions, and elsewhere in the Contract Documents. Measurement and Payment for Site Specific Potholing shall be per section 1-09.14(2)A4. 1-07.17(4) Interruption of Services (******) This is a new section as follows: Whenever in the course of the construction operation it becomes necessary to cause an outage of utilities, it shall be the Contractor's responsibility to notify the affected users and the Engineer not less than 48 hours in advance of such outage. The Contractor shall make reasonable effort to minimize the duration of outages, and shall estimate the length of time service will be interrupted and so notify the users. In the case of any utility outage that has exceeded or will exceed four hours, user contact shall again be made. Temporary service, if needed, will be arranged by the Contractor at no cost to the Owner. Water service interruptions, shut-offs, and connection shall be in accordance with Section 7-09. Overhead lighting outages shall not exceed 24 hours. All cost to the Contractor for providing temporary overhead lighting to meet above requirements shall be incidental to the various unit and Lump sum items of the Contract; no separate payment will be made. In the event an outage or service interruption is caused by Contractor negligence or unmarked utility, the Contractor shall notify and coordinate with the owner of the utility and the Engineer immediately. The Contractor shall also be responsible for notifying the affected users as soon as possible and no later than 8 hours after the interruption occurred. The Contractor will be responsible for any negligence and reparations necessary to resolve the interruption. No additional compensation will be made to the Contractor for reason of delay caused by the actions of any utility company, and the Contractor shall consider such costs to be incidental to the other items of the Contract. 1-07.17(5) Resolution of Utility Conflicts (******) This is a new section as follows: In no way shall the work described under “Resolution of Utility Conflicts” relieve Contractor of any of the responsibilities described in Section 1-07.17 of the Standard Specifications and Special Provisions, and elsewhere in the Contract Documents. If or when utility conflicts occur, Contractor shall continue the construction process on other aspects of the project whenever possible. 1-07 Legal Relations and Responsibilities to the Public City of Renton 1-50 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions If “Resolution of Utility Conflicts” is included as a bid item in Section 1-09.14, it shall be used to resolve any new identified utility conflicts not otherwise shown on the Contract Drawing or Specifications that are identified during the course of construction, including water service line relocations required when the line cannot be temporarily supported during the construction. 1-07.18 Public Liability and Property Damage Insurance (******) Delete this section in its entirety, and replace it with the following: 1-07.18 Insurance (December 30, 2022 APWA GSP) 1-07.18(1) General Requirements A. The Contractor shall procure and maintain the insurance described in all subsections of section 1-07.18 of these Special Provisions, from insurers with a current A. M. Best rating of not less than A-: VII and licensed to do business in the State of Washington. The Contracting Agency reserves the right to approve or reject the insurance provided, based on the insurer’s financial condition. B. The Contractor shall keep this insurance in force without interruption from the commencement of the Contractor’s Work through the term of the Contract and for thirty (30) days after the Physical Completion date, unless otherwise indicated below. C. If any insurance policy is written on a claims-made form, its retroactive date, and that of all subsequent renewals, shall be no later than the effective date of this Contract. The policy shall state that coverage is claims made and state the retroactive date. Claims-made form coverage shall be maintained by the Contractor for a minimum of 36 months following the Completion Date or earlier termination of this Contract, and the Contractor shall annually provide the Contracting Agency with proof of renewal. If renewal of the claims made form of coverage becomes unavailable, or economically prohibitive, the Contractor shall purchase an extended reporting period (“tail”) or execute another form of guarantee acceptable to the Contracting Agency to assure financial responsibility for liability for services performed. D. The Contractor’s Automobile Liability, Commercial General Liability and Excess or Umbrella Liability insurance policies shall be primary and non-contributory insurance as respects the Contracting Agency’s insurance, self-insurance, or self-insured pool coverage. Any insurance, self-insurance, or self-insured pool coverage maintained by the Contracting Agency shall be excess of the Contractor’s insurance and shall not contribute with it. E. The Contractor shall provide the Contracting Agency and all additional insureds with written notice of any policy cancellation, within two business days of their receipt of such notice. F. The Contractor shall not begin work under the Contract until the required insurance has been obtained and approved by the Contracting Agency. G. Failure on the part of the Contractor to maintain the insurance as required shall constitute a material breach of contract, upon which the Contracting Agency may, after giving five business days’ notice to the Contractor to correct the breach, immediately terminate the Contract or, at its discretion, procure or renew such insurance and pay any and all premiums in connection therewith, with any sums so 1-07 Legal Relations and Responsibilities to the Public City of Renton 1-51 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions expended to be repaid to the Contracting Agency on demand, or at the sole discretion of the Contracting Agency, offset against funds due the Contractor from the Contracting Agency. H. All costs for insurance shall be incidental to and included in the unit or lump sum prices of the Contract and no additional payment will be made. 1-07.18(2) Additional Insured All insurance policies, with the exception of Workers Compensation, and of Professional Liability and Builder’s Risk (if required by this Contract) shall name the following listed entities as additional insured(s) using the forms or endorsements required herein: · the Contracting Agency and its officers, elected officials, employees, agents, and volunteers; · Consultants hired by the Contracting Agency to provide engineering support during construction of this project; · Consultants hired by the Contracting Agency to provide environmental support during construction of this project; · Consultants hired by the Contracting Agency to provide construction management, inspection and materials testing services for this project. · Washington State Department of Ecology, and its officers, employees, and agents · Soos Creek Water and Sewer District, and its officers, employees, and agents The above-listed entities shall be additional insured(s) for the full available limits of liability maintained by the Contractor, irrespective of whether such limits maintained by the Contractor are greater than those required by this Contract, and irrespective of whether the Certificate of Insurance provided by the Contractor pursuant to 1-07.18(4) describes limits lower than those maintained by the Contractor. For Commercial General Liability insurance coverage, the required additional insured endorsements shall be at least as broad as ISO forms CG 20 10 10 01 for ongoing operations and CG 20 37 10 01 for completed operations. 1-07.18(3) Subcontractors The Contractor shall cause each subcontractor of every tier to provide insurance coverage that complies with all applicable requirements of the Contractor-provided insurance as set forth herein, except the Contractor shall have sole responsibility for determining the limits of coverage required to be obtained by subcontractors. The Contractor shall ensure that all subcontractors of every tier add all entities listed in 1-07.18(2) as additional insureds, and provide proof of such on the policies as required by that section as detailed in 1-07.18(2) using an endorsement as least as broad as ISO CG 20 10 10 01 for ongoing operations and CG 20 37 10 01 for completed operations. Upon request by the Contracting Agency, the Contractor shall forward to the Contracting Agency evidence of insurance and copies of the additional insured endorsements of each subcontractor of every tier as required in 1-07.18(4) Verification of Coverage. 1-07 Legal Relations and Responsibilities to the Public City of Renton 1-52 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 1-07.18(4) Verification of Coverage The Contractor shall deliver to the Contracting Agency a Certificate(s) of Insurance and endorsements for each policy of insurance meeting the requirements set forth herein when the Contractor delivers the signed Contract for the work. Failure of Contracting Agency to demand such verification of coverage with these insurance requirements or failure of Contracting Agency to identify a deficiency from the insurance documentation provided shall not be construed as a waiver of Contractor’s obligation to maintain such insurance. Verification of coverage shall include: 1. An ACORD certificate or a form determined by the Contracting Agency to be equivalent. 2. Copies of all endorsements naming Contracting Agency and all other entities listed in 1-07.18(2) as additional insured(s), showing the policy number. The Contractor may submit a copy of any blanket additional insured clause from its policies instead of a separate endorsement. 3. Any other amendatory endorsements to show the coverage required herein. 4. A notation of coverage enhancements on the Certificate of Insurance shall not satisfy these requirements – actual endorsements must be submitted. Upon request by the Contracting Agency, the Contractor shall forward to the Contracting Agency a full and certified copy of the insurance policy(s). If Builders Risk insurance is required on this Project, a full and certified copy of that policy is required when the Contractor delivers the signed Contract for the work. 1-07.18(5) Coverages and Limits The insurance shall provide the minimum coverages and limits set forth below. Contractor’s maintenance of insurance, its scope of coverage, and limits as required herein shall not be construed to limit the liability of the Contractor to the coverage provided by such insurance, or otherwise limit the Contracting Agency’s recourse to any remedy available at law or in equity. All deductibles and self-insured retentions must be disclosed and are subject to approval by the Contracting Agency. The cost of any claim payments falling within the deductible or self- insured retention shall be the responsibility of the Contractor. In the event an additional insured incurs a liability subject to any policy’s deductibles or self-insured retention, said deductibles or self-insured retention shall be the responsibility of the Contractor. 1-07.18(5)A Commercial General Liability Commercial General Liability insurance shall be written on coverage forms at least as broad as ISO occurrence form CG 00 01, including but not limited to liability arising from premises, operations, stop gap liability, independent contractors, products-completed operations, personal and advertising injury, and liability assumed under an insured contract. There shall be no exclusion for liability arising from explosion, collapse or underground property damage. The Commercial General Liability insurance shall be endorsed to provide a per project general aggregate limit, using ISO form CG 25 03 05 09 or an equivalent endorsement. 1-07 Legal Relations and Responsibilities to the Public City of Renton 1-53 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Contractor shall maintain Commercial General Liability Insurance arising out of the Contractor’s completed operations for at least three years following Substantial Completion of the Work. Such policy must provide the following minimum limits: $1,000,000 Each Occurrence $2,000,000 General Aggregate $2,000,000 Products & Completed Operations Aggregate $1,000,000 Personal & Advertising Injury each offence $1,000,000 Stop Gap / Employers’ Liability each accident 1-07.18(5)B Automobile Liability Automobile Liability shall cover owned, non-owned, hired, and leased vehicles; and shall be written on a coverage form at least as broad as ISO form CA 00 01. If the work involves the transport of pollutants, the automobile liability policy shall include MCS 90 and CA 99 48 endorsements. Such policy must provide the following minimum limit: $1,000,000 Combined single limit each accident 1-07.18(5)C Workers’ Compensation The Contractor shall comply with Workers’ Compensation coverage as required by the Industrial Insurance laws of the State of Washington. 1-07.18(5)D Excess or Umbrella Liability (January 4, 2016 APWA GSP) The Contractor shall provide Excess or Umbrella Liability insurance with limits of not less than described herein. This excess or umbrella liability coverage shall be excess over and as least as broad in coverage as the Contractor’s Commercial General and Auto Liability insurance. All entities listed under 1-07.18(2) of these Special Provisions shall be named as additional insureds on the Contractor’s Excess or Umbrella Liability insurance policy. This requirement may be satisfied instead through the Contractor’s primary Commercial General and Automobile Liability coverages, or any combination thereof that achieves the overall required limits of insurance. Such policy must provide the following minimum limit: Each Occurrence Limit $1,000,000 General Aggregate Limit $1,000,000 Products/Completed Operations Aggregate $1,000,000 1-07.18(5)J Pollution Liability (January 4, 2016 APWA GSP) 1-07 Legal Relations and Responsibilities to the Public City of Renton 1-54 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions The Contractor shall provide a Contractors Pollution Liability policy, providing coverage for claims involving bodily injury, property damage (including loss of use of tangible property that has not been physically injured), cleanup costs, remediation, disposal or other handling of pollutants, including costs and expenses incurred in the investigation, defense, or settlement of claims, arising out of any one or more of the following: 1. Contractor’s operations related to this project. 2. Remediation, abatement, repair, maintenance or other work with lead-based paint or materials containing asbestos. 3. Transportation of hazardous materials away from any site related to this project. All entities listed under 1-07.18(2) of these Special Provisions shall be named by endorsement as additional insureds on the Contractors Pollution Liability insurance policy. Such Pollution Liability policy shall provide the following minimum limits: $1,000,000 each loss and annual aggregate 1-07.18(5)K Professional Liability (December 30, 2022 APWA GSP) The Contractor and/or its subcontractor(s) and/or its design consultant providing construction management, value engineering, or any other design-related non-construction professional services shall provide evidence of Professional Liability insurance covering professional errors and omissions. Such policy shall provide the following minimum limits: $1,000,000 per claim and annual aggregate If the scope of such design-related professional services includes work related to pollution conditions, the Professional Liability insurance shall include coverage for Environmental Professional Liability. If insurance is on a claims-made form, its retroactive date, and that of all subsequent renewals, shall be no later than the effective date of this Contract. 1-07.22 Use of Explosives (******) Supplement this section as follows: Explosives shall not be used without specific authority of the Engineer, and then only under such restrictions as may be required by the proper authorities. Explosives shall be handled and used in strict compliance with WAC 296-52 and such local laws, rules and regulations that may apply. The individual in charge of the blasting shall have a current Washington State Blaster Users License. The Contractor shall obtain, comply with, and pay for such permits and costs as are necessary in conjunction with blasting operations. 1-07 Legal Relations and Responsibilities to the Public City of Renton 1-55 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 1-07.23 Public Convenience and Safety 1-07.23(1) Construction Under Traffic (******) Revise the second paragraph in this section as follows: To disrupt public traffic as little as possible, the Contractor shall permit traffic to pass through the Work with the least possible inconvenience or delay. The Contractor shall maintain existing roads, streets, sidewalks, driveways, and paths within the project limits, keeping them open, and in good, clean, safe condition at all times. Accessibility to existing or temporary pedestrian push buttons shall not be impaired; if approved by the Contracting Agency activating pedestrian recall timing or other accommodation may be allowed during construction. Deficiencies caused by the Contractor’s operations shall be repaired at the Contractor’s expense. Deficiencies not caused by the Contractor’s operations shall be repaired by the Contractor when directed by the Engineer, at the Contracting Agency’s expense. The Contractor shall also maintain roads, streets, sidewalks, driveways, and paths adjacent to the project limits when affected by the Contractor’s operations. Snow and ice control will be performed by the Contracting Agency on all projects. Cleanup of snow and ice control debris will be at the Contracting Agency’s expense. The Contractor shall perform the following: 1. Remove or repair any condition resulting from the Work that might impede traffic or create a hazard. 2. Keep existing traffic signal and highway lighting systems in operation as the Work proceeds. (The Contracting Agency will continue the route maintenance on such system.) 3. Maintain the striping on the roadway at the Contracting Agency’s expense. The Contractor shall be responsible for scheduling when to renew striping, subject to the approval of the Engineer. When the scope of the project does not require Work on the roadway, the Contracting Agency will be responsible for maintaining the striping. 4. Maintain existing permanent signing. Repair of signs will be at the Contracting Agency’s expense, except those damaged due to the Contractor’s operations. 5. Keep drainage structures clean to allow for free flow of water. Cleaning of existing drainage structures will be at the Contracting Agency’s expense when approved by the Engineer, except when flow is impaired due to the Contractor’s operations. (******) Supplement this section as follows: The Contractor shall be responsible for controlling dust and mud within the project limits and on any street, which is utilized by his equipment for the duration of the project. The Contractor shall be prepared to use watering trucks, power sweepers, and other pieces of equipment as deemed necessary by the Engineer, to avoid creating a nuisance. Dust and mud control shall be considered as incidental to the project and no compensation will be made for this section. Complaints of dust, mud, or unsafe practices and/or property damage to private ownership will be transmitted to the Contractor and prompt action in correcting them will be required by the Contractor. 1-07 Legal Relations and Responsibilities to the Public City of Renton 1-56 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions The Contractor shall maintain the roads during construction in a suitable condition to minimize affects to vehicular and pedestrian traffic. All cost to maintain the roads shall be borne by the Contractor. At least one lane of one-way traffic shall be maintained on all streets within the project limits during working hours except at specific locations noted in the plans or special provisions. One lane shall be provided in each direction for all streets during non-working hours except at specific locations noted in the plans or special provisions. The Contractor shall provide one drivable roadway lane and maintain convenient access for local and commuter traffic to driveways, businesses, and buildings along the line of Work throughout the course of the project. Such access shall be maintained as near as possible to that which existed prior to the commencement of construction. This restriction shall not apply to the paving portion of the construction process. The Contractor shall notify and coordinate with all property owners and tenants of street closures, or other restrictions which may interfere with their access at least 24 hours in advance for single-family residential property and at least 48 hours in advance for apartments, offices, and commercial property. The Contractor shall give a copy of all notices to the Engineer. When the abutting owners’ access across the right-of-way line is to be eliminated and replaced under the Contract by other access, the existing access shall not be closed until the replacement access facility is available. All unattended excavations shall be properly barricaded and covered at all times. The Contractor shall not open any trenches that cannot be completed and refilled that same day. Trenches shall be patched or covered by a temporary steel plate, at the Contractor’s expense, except in areas where the roadway remains closed to public traffic. Steel plates must be anchored. 1-07.23(2) Construction and Maintenance of Detours (******) Revise the first paragraph in this section as follows: Unless otherwise approved, the Contractor shall maintain two-way traffic during construction. The Contractor shall build, maintain in a safe condition, keep open to traffic, and remove when no longer needed: 1. Detours and detour bridges that will accommodate traffic diverted from the roadway, bridge, sidewalk, driveway, or path during construction; 2. Detour crossings of intersecting highways; and 3. Temporary approaches. 1-07.24 Rights-of-Way (July 23, 2015 APWA GSP) Delete and replace this section as follows: 1-07 Legal Relations and Responsibilities to the Public City of Renton 1-57 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Street Right of Way lines, limits of easements, and limits of construction permits are indicated in the Plans. The Contractor’s construction activities shall be confined within these limits, unless arrangements for use of private property are made. Generally, the Contracting Agency will have obtained, prior to bid opening, all rights of way and easements, both permanent and temporary, necessary for carrying out the work. Exceptions to this are noted in the Bid Documents or will be brought to the Contractor’s attention by a duly issued Addendum. Whenever any of the work is accomplished on or through property other than public Right of Way, the Contractor shall meet and fulfill all covenants and stipulations of any easement agreement obtained by the Contracting Agency from the owner of the private property. Copies of the easement agreements may be included in the Contract Provisions or made available to the Contractor as soon as practical after they have been obtained by the Engineer. Whenever easements or rights of entry have not been acquired prior to advertising, these areas are so noted in the Plans. The Contractor shall not proceed with any portion of the work in areas where right of way, easements or rights of entry have not been acquired until the Engineer certifies to the Contractor that the right of way or easement is available or that the right of entry has been received. If the Contractor is delayed due to acts of omission on the part of the Contracting Agency in obtaining easements, rights of entry or right of way, the Contractor will be entitled to an extension of time. The Contractor agrees that such delay shall not be a breach of contract. Each property owner shall be given 48 hours notice prior to entry by the Contractor. This includes entry onto easements and private property where private improvements must be adjusted. The Contractor shall be responsible for providing, without expense or liability to the Contracting Agency, any additional land and access thereto that the Contractor may desire for temporary construction facilities, storage of materials, or other Contractor needs. However, before using any private property, whether adjoining the work or not, the Contractor shall file with the Engineer a written permission of the private property owner, and, upon vacating the premises, a written release from the property owner of each property disturbed or otherwise interfered with by reasons of construction pursued under this contract. The statement shall be signed by the private property owner, or proper authority acting for the owner of the private property affected, stating that permission has been granted to use the property and all necessary permits have been obtained or, in the case of a release, that the restoration of the property has been satisfactorily accomplished. The statement shall include the parcel number, address, and date of signature. Written releases must be filed with the Engineer before the Completion Date will be established. 1-07.28 Confined Space Entry (******) This is a new section as follows: The Contractor shall: 1. Review and be familiar with the City’s Public Works Confined Space Entry Program. 1-07 Legal Relations and Responsibilities to the Public City of Renton 1-58 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 2. Review documented information about the City confined spaces in which entry is intended as listed and described in the City’s Attribute and Map Book. This information includes identified hazards for each permit-required confined space. 3. Each contractor shall have their own confined space entry program. Upon request of the City they will provide a statement confirming they are in compliance with their confined space entry program including requirements for confined space training for employees associated with the project in Renton. 4. Be responsible for following all confined space requirements established by the provisions in WAC 296-809 and its chapters. 5. Coordinate entry operations with the City of Renton when employees from the contractor will be working in or near City confined spaces. 6. Discuss entry operations with the City of Renton including the program followed during confined space entry. 7. Debrief the City on any hazards confronted or created at the completion of entry operations. 8. Place signs noting the danger and to follow confined space entry procedure before entering at each confined space to be entered. Never leave the confined space open and unattended. The Contractor’s or Consultant’s point of contact with the City in regard to confined space entry will be the City’s assigned construction inspector. END OF SECTION 1-07 1-08 Prosecution and Progress City of Renton 1-59 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 1-08 PROSECUTION AND PROGRESS 1-08.0 Preliminary Matters (******) This is a new section with subsections as follows: 1-08.0(1) Preconstruction Conference (******) This is a new section as follows: The Engineer will furnish the Contractor with copies of the Contract Documents per Section 1-02.2 “Plans and Specifications”. Additional documents may be furnished upon request at the cost of reproduction. Prior to undertaking each part of the Work the Contractor shall carefully study and compare the Contract Documents, and check and verify pertinent figures shown therein and all applicable field measurements. The Contractor shall promptly report in writing to the Engineer any conflict, error or discrepancy, which the Contractor may discover. After the Contract has been executed, but prior to the Contractor beginning the Work, a preconstruction conference will be held between the Contractor, the Engineer, and such other interested parties as may be invited. The Contractor shall prepare and submit a minimum 3 days prior to the preconstruction meeting: · Contractor’s plan of operation and progress schedule (3+ copies) · Approval of qualified subcontractors (bring list of subcontractors if different from list submitted with bid) · List of materials fabricated or manufactured off the project · Material sources for approval, if applicable · Shop Drawings (bring preliminary list) · Names of principal suppliers · Detailed equipment list, including “Rental Rate Blue Book” hourly costs (both working and standby rates) · Weighted wage rates for all employee classifications anticipated to be used on Project · Cost percentage breakdown for lump sum bid item(s) · Traffic Control Plans (3+ copies) · Pedestrian Handling Plan · Storm Water Pollution Prevention Plan (SWPPP) · Temporary Erosion and Sediment Control Plan (TESCP) · Apprentice Utilization Plan (AUP) · Shoring Plan 1-08 Prosecution and Progress City of Renton 1-60 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions · Work Plan · Other plans as required In addition, the Contractor shall be prepared to address: · Bonds and insurance · Project meetings – schedule and responsibilities · Provision for inspection for materials from outside sources · Responsibility for locating utilities · Responsibility for damage · Time schedule for relocations, if by other than the Contractor · Compliance with Contract Documents · Acceptance and approval of Work · Labor compliance, payrolls, and certifications · Safety regulations for the Contractors’ and the Owner’s employees and representatives · Suspension of Work, time extensions · Change order procedures · Progress estimates, procedures for payment · Special requirements of funding agencies · Construction engineering, advance notice of special work · Any interpretation of the Contract Documents requested by the Contractor · Any conflicts or omissions in Contract Documents · Any other problems or questions concerning the Work · Processing and administration of public complaints · Easements and rights-of-entry · Other contracts The franchise utilities may be present at the preconstruction conference, and the Contractor should be prepared for their review and discussion of progress schedule and coordination. 1-08.0(2) Hours of Work (******) This is a new section as follows: Except in the case of emergency or unless otherwise approved by the Engineer, the normal working hours for the Contract shall be any consecutive 8-hour period between 7:00 a.m. and 6:00 p.m. Monday through Friday, exclusive of a lunch break. If the Contractor desires different than the normal working hours stated above, the request must be submitted in writing prior to the preconstruction conference, subject to the 1-08 Prosecution and Progress City of Renton 1-61 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions provisions below. The working hours for the Contract shall be established at, or prior to, the preconstruction conference. All working hours and days are also subject to local permit and ordinance conditions (such as noise ordinances). If the Contractor wishes to deviate from the established working hours, the Contractor shall submit a written request to the Engineer for consideration. This request shall state what hours are being requested, and why. Requests shall be submitted for review no later than 3 working days prior to the day(s) the Contractor is requesting to change the hours. If the Contracting Agency approves such a deviation, such approval may be subject to certain other conditions, which will be detailed in writing. For example: 1. On non-Federal aid projects, requiring the Contractor to reimburse the Contracting Agency for the costs in excess of straight-time costs for Contracting Agency representatives who worked during such times. (The Engineer may require designated representatives to be present during the work. Representatives who may be deemed necessary by the Engineer include, but are not limited to: survey crews; personnel from the Contracting Agency’s material testing lab; inspectors; and other Contracting Agency employees or third party consultants when, in the opinion of the Engineer, such work necessitates their presence.) 2. Considering the work performed on Saturdays, Sundays, and holidays as working days with regard to the contract time. 3. Considering multiple work shifts as multiple working days with respect to contract time even though the multiple shifts occur in a single 24-hour period. 4. If a 4-10 work schedule is requested and approved the non working day for the week will be charged as a working day. 5. If Davis Bacon wage rates apply to this Contract, all requirements must be met and recorded properly on certified payroll Permission to Work Saturdays, Sundays, holidays, or other than the agreed upon normal straight time working hours, Monday through Friday, may be given subject to certain other conditions set forth by the Contracting Agency or the Engineer. These conditions may include but are not limited to: 1. Requiring the Engineer or such assistants as the Engineer may deem necessary to be present during the Work; where assistants may include, but are not limited to: survey crews, personnel from the material testing labs, inspectors, and other Contracting Agency employees when in the opinion of the Engineer such Work necessitates their presence. 2. Requiring the Contractor to reimburse the Contracting Agency for the cost of engineering salaries paid Contracting Agency employees who worked during such times. 3. Considering the Work performed on Saturdays, Sundays, and holidays as working days with regards to the Contract Time. 1-08 Prosecution and Progress City of Renton 1-62 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 4. Considering multiple Work shifts as multiple working days with respect to Contract Time even though the multiple shifts occur in a single 24-hour period. 1-08.0(3) Reimbursement for Overtime Work of Contracting Agency Employees (******) This is a new section as follows: Where the Contractor elects to Work on a Saturday, Sunday, holiday, or longer than an 8-hour Work shift on a regular working day, as defined in the Standard Specifications, such Work shall be considered as overtime Work. On all such overtime Work an inspector will be present, and a survey crew may be required at the discretion of the Engineer. The Contractor shall reimburse the Contracting Agency for the full amount of the straight time plus overtime costs for employees and representative(s) of the Contracting Agency required to work overtime hours. The Contractor by these Specifications does hereby authorize the Engineer to deduct such costs from the amount due, or to become due, the Contractor. 1-08.1 Subcontracting (******) Supplement this section as follows: Written requests for change in subcontractors shall be submitted by the Contractor to the Engineer at least 7 calendar days prior to start of a subcontractor's Work. The Contractor agrees that he/she/they is(are) fully responsible to the Owner for the acts and omissions of all subcontractors and lower-tier subcontractors and persons either directly or indirectly employed by the subcontractors, as well as for the acts and omissions of persons directly employed by the Contractor. The Contractor shall be required to give personal attention to the Work that is sublet. Nothing contained in the Contract Documents shall create any contractual relation between any subcontractor and the Owner. The Contractor shall be responsible for making sure all subcontractors submit all required documentation, forms, etc. prior to the commencement of subcontractor work. 1-08.1(7)A Payment Certification (December 30, 2022 APWA GSP) Revise this section to read “Vacant”. 1-08.2 Assignment (******) The second paragraph of Section 1-08.2 is modified as follows: The Contractor shall not assign any moneys due or to become due to the Contractor hereunder without the prior written consent of the Owner. The assignment, if approved, shall be subject to all setoffs, withholdings, and deductions required by law and the Contract. 1-08.3 Progress Schedule (******) Supplement this section as follows: 1-08 Prosecution and Progress City of Renton 1-63 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions The progress schedule for the entire project shall be submitted in electronic format to the Engineer 3 calendar days prior to the Preconstruction Conference. The schedule shall be prepared using the critical path method (CPM), preferably using Microsoft Project or equivalent software. The schedule shall contain this information, at a minimum: 1. Construction activities, in sufficient detail that all activities necessary to construct a complete and functional project are considered. Any activity that has a scheduled duration exceeding 30 calendar days shall be subdivided until no sub-element has a duration exceeding 30 calendar days. 2. The schedule shall clearly indicate the activities that comprise the critical path. For each activity not on the critical path, the schedule shall show the float, or slack, time. 3. Procurement of material and equipment. 4. Submittals requiring review by the Engineer. Submittal by the Contractor and review by the Engineer shall be shown as separate activities. 5. Work to be performed by a subcontractor, agent, or any third party. 6. Allowances for delays that could result from normal inclement weather (time extensions due to inclement weather will not be allowed). 7. Allowances for the time required by utilities (Owner’s and others) to locate, monitor, and adjust their facilities as required. The Engineer may request the Contractor to alter the progress schedule when deemed necessary in the opinion of the Engineer, in the interest of public safety and welfare of the Owner, for coordination with any other activity of other contractors, for the availability of all or portions of the job site, for special provisions of this Contract, or to reasonably meet the completion date of the project. The Contractor shall provide such revised schedule within 10 days of request. If, at any time, it is the opinion of the Engineer that the progress of construction falls significantly behind schedule, the Contractor may be required to submit a plan for regaining progress and a revised schedule indicating how the remaining Work items will be completed within the authorized contract time. The Contractor shall promptly report to the Engineer any conditions that the Contractor feels will require revision of the schedule and shall promptly submit proposed revisions in the progress schedule for acceptance by the Engineer. When such changes are accepted by the Engineer, the revised schedule shall be followed by the Contractor. Weekly Schedule. The Contractor shall submit a weekly progress schedule to the Engineer which sets forth specific Work to be performed the following week, and a tentative schedule for the second week. Failure to Maintain Progress Schedule. The Engineer will check actual progress of the Work against the progress schedule a minimum of two times per month. Failure, without just cause, to maintain progress in accordance with the approved schedule shall constitute a breach of Contract. If, through no fault of the Contractor, the proposed construction schedule cannot be met, the Engineer will require the Contractor to submit a revised schedule to the Engineer for acceptance. The approved revisions will thereafter, in all respects, apply in lieu of the original schedule. 1-08 Prosecution and Progress City of Renton 1-64 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Failure of the Contractor to follow the progress schedule submitted and accepted, including revisions thereof, shall relieve the Owner of any and all responsibility for furnishing and making available all or any portion of the job site, and will relieve the Owner of any responsibility for delays to the Contractor in the performance of the Work. The cost of preparing the progress schedule, any supplementary progress schedules, and weekly schedules shall be considered incidental to the Contract and no other compensation shall be made. 1-08.3(2)B Type B Progress Schedule (December 30, 2022 APWA GSP) Revise the first paragraph to read: The Contractor shall submit a preliminary Type B Progress Schedule at the preconstruction conference or within 21 calendar days after the contract is executed, whichever occurs first. The preliminary Type B Progress Schedule shall depict the entire project and shall comply with all of these requirements and the requirements of Section 1-08.3(1). Delete the first sentence of the second paragraph beginning with: “The Contractor shall submit the complete progress schedule depicting…” 1-08.4 Prosecution of the Work (******) Delete and replace this section as follows: 1-08.4 Notice to Proceed and Prosecution of the Work Notice to Proceed will be given after the contract has been executed and the contract bond and evidence of insurance have been approved and filed by the Contracting Agency. The Contractor shall not commence with the work until the Notice to Proceed has been given by the Engineer. The Contractor shall commence construction activities on the project site within ten days of the Notice to Proceed Date, unless otherwise approved in writing. The Work thereafter shall be prosecuted diligently, vigorously, and without unauthorized interruption until physical completion of the Work. There shall be no voluntary shutdowns or slowing of operations by the Contractor without prior approval of the Engineer. Such approval shall not relieve the Contractor from the contractual obligations to complete the work within the prescribed contract Time. When shown in the Plans, the first order of work shall be the installation of high visibility fencing to delineate all areas for protection or restoration, as described in the Contract. Installation of high visibility fencing adjacent to the roadway shall occur after the placement of all necessary signs and traffic control devices in accordance with 1-10.1(2). Upon construction of the fencing, the Contractor shall request the Engineer to inspect the fence. No other work shall be performed on the site until the Contracting Agency has accepted the installation of high visibility fencing, as described in the Contract. 1-08 Prosecution and Progress City of Renton 1-65 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 1-08.5 Time For Completion (******) Revise the first paragraph in this section as follows: The Contractor shall complete all physical Contract Work within the number of “working days” stated in the Contract Provisions or as extended by the Engineer in accordance with Section 1-08.8. Every day will be counted as a “working day” unless it is a nonworking day or an Engineer determined unworkable day. A nonworking day is defined as a Saturday, a Sunday, a whole or half day on which the Contract specifically prohibits Work on the critical path of the Contractor’s approved progress schedule, or one of these holidays: January 1, the third Monday of January, Memorial Day, June 19, July 4, Labor Day, November 11, Thanksgiving Day, the day after Thanksgiving, and Christmas Day. When Christmas Day is observed on a Tuesday, Wednesday, or Friday, the previous day shall be a holiday. When Christmas day is observed on a Monday or Thursday, the next day shall be a holiday. Whenever any of these holidays fall upon a Sunday, the following Monday shall be counted as a nonworking day. When the holiday falls upon a Saturday, the preceding Friday shall be counted as a nonworking day. (December 30, 2022 APWA GSP, Option A) Revise the third and fourth paragraphs to read: Contract time shall begin on the first working day following the Notice to Proceed Date. Each working day shall be charged to the contract as it occurs, until the contract work is physically complete. If substantial completion has been granted and all the authorized working days have been used, charging of working days will cease. Each week the Engineer will provide the Contractor a statement that shows the number of working days: (1) charged to the contract the week before; (2) specified for the physical completion of the contract; and (3) remaining for the physical completion of the contract. The statement will also show the nonworking days and all partial or whole days the Engineer declares as unworkable. The statement will be identified as a Written Determination by the Engineer. If the Contractor does not agree with the Written Determination of working days, the Contractor shall pursue the protest procedures in accordance with Section 1-04.5. By failing to follow the procedures of Section 1-04.5, the Contractor shall be deemed as having accepted the statement as correct. If the Contractor is approved to work 10 hours a day and 4 days a week (a 4-10 schedule) and the fifth day of the week in which a 4-10 shift is worked would ordinarily be charged as a working day then the fifth day of that week will be charged as a working day whether or not the Contractor works on that day. (******) Revise the sixth paragraph to read: The Engineer will give the Contractor written notice of the completion date of the contract after all the Contractor’s obligations under the contract have been performed by the Contractor. The following events must occur before the Completion Date can be established: 1. The physical work on the project must be complete; and 2. The Contractor must furnish all documentation required by the contract and required by law, to allow the Contracting Agency to process final acceptance of the contract. 1-08 Prosecution and Progress City of Renton 1-66 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions The following documents must be received by the Project Engineer prior to establishing a completion date: a. Certified Payrolls (per Section 1-07.9(5)). b. Material Acceptance Certification Documents. c. Monthly Reports of Amounts Credited as DBE Participation, as required by the Contract Provisions. d. Final Contract Voucher Certification. e. Copies of the approved “Affidavit of Prevailing Wages Paid” for the Contractor and all Subcontractors. f. A copy of the Notice of Termination sent to the Washington State Department of Ecology (Ecology); the elapse of 30 calendar days from the date of receipt of the Notice of Termination by Ecology; and no rejection of the Notice of Termination by Ecology. This requirement will not apply if the Construction Stormwater General Permit is transferred back to the Contracting Agency in accordance with Section 8-01.3(16). g. Property owner releases per Section 1-07.24. (******) Supplement this section as follows: The requirements for scheduling the Final Inspection and establishing the Substantial Completion, Physical Completion, and Completion Dates are specified in Sections 1-05.11 and 1-05.12. Within 10 calendar days after execution of the Contract by the Contracting Agency, the Contractor shall provide the Contracting Agency with copies of purchase orders for all equipment items deemed critical by the Contracting Agency, including but not limited to signal controller materials, lighting standards, and signal standards required for the physical completion of the Contract. Such purchase orders shall disclose the estimated delivery dates for the equipment. All items of Work that can be performed without delivery of the critical items shall start and be completed as soon as possible. At that time, the Engineer may suspend the Work upon request of the Contractor until the critical items are delivered to the Contractor, if the Contracting Agency received a purchase order within 10 calendar days after execution of the Contract by the Contracting Agency. The Contractor will be entitled to only one such suspension of time during the performance of the Work and during such suspension shall not perform any additional Work on the project. Upon delivery of the critical items, contract time will resume and continue to be charged in accordance with Section 1-08. 1-08.6 Suspension of Work (******) Supplement this section as follows: 1-08 Prosecution and Progress City of Renton 1-67 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Owner may at any time suspend the Work, or any part thereof, by giving notice to the Contractor in writing. The Work shall be resumed by the Contractor within 14 calendar days after the date fixed in the written notice from the Owner to the Contractor to do so. The Contractor shall not suspend Work under the Contract without the written order of the Owner. If it has been determined that the Contractor is entitled to an extension of time, the amount of such extension shall be only to compensate for direct delays, and shall be based upon the Contractor's diligently pursuing the Work at a rate not less than that which would have been necessary to complete the original Contract Work on time. 1-08.7 Maintenance During Suspension (******) Revise the second paragraph to read: At no expense to the Contracting Agency, the Contractor shall provide through the construction area a safe, smooth, and unobstructed roadway, sidewalk, driveway, and path for public use during suspension (as required in Section 1-07.23 or the Special Provisions). This may include a temporary road or detour. 1-08.9 Liquidated Damages (March 3, 2021 APWA GSP, Option B) Revise the second and third paragraphs to read: Accordingly, the Contractor agrees: 1. To pay (according to the following formula) liquidated damages for each working day beyond the number of working days established for Physical Completion, and 2. To authorize the Engineer to deduct these liquidated damages from any money due or coming due to the Contractor. Liquidated Damages Formula LD = 0.15 C / T Where: LD = liquidated damages per working day (rounded to the nearest dollar) C = original Contract amount T = original time for Physical Completion When the Contract Work has progressed to Substantial Completion as defined in the Contract, the Engineer may determine the Contract Work is Substantially Complete. The Engineer will notify the Contractor in writing of the Substantial Completion Date. For overruns in Contract time occurring after the date so established, the formula for liquidated damages shown above will not apply. For overruns in Contract time occurring after the Substantial Completion Date, liquidated damages shall be assessed on the basis of direct engineering and related costs assignable to the project until the actual Physical Completion Date of all the Contract Work. The Contractor shall complete the remaining Work as promptly as possible. Upon request by the Project Engineer, the Contractor shall furnish a written schedule for completing the physical Work on the Contract. 1-08 Prosecution and Progress City of Renton 1-68 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions (******) Supplement this section as follows: In addition, the Contractor shall compensate the Owner for actual engineering inspection and supervision costs and any other expenses and legal fees incurred by the Owner as a result of such delay. Such labor costs will be billed to the Contractor at actual costs, including administrative overhead costs. In the event that the Owner is required to commence any lawsuit in order to enforce any provision of this Contract or to seek redress for any breach thereof, the Owner shall be entitled to recover its costs, including reasonable attorney’s fees, from the Contractor. 1-08.11 Contractor's Plant and Equipment (******) This is a new section as follows: The Contractor alone shall at all times be responsible for the adequacy, efficiency, and sufficiency of his and his subcontractor's plant and equipment. The Owner shall have the right to make use of the Contractor's plant and equipment in the performance of any Work on the site of the Work. The use by the Owner of such plant and equipment shall be considered as extra Work and paid for accordingly. Neither the Owner nor the Engineer assumes any responsibility, at any time, for the security of the site from the time the Contractor's operations have commenced until final acceptance of the Work by the Engineer and the Owner. The Contractor shall employ such measures as additional fencing, barricades, and watchmen service; as he deems necessary for the public safety and for the protection of the site and his plant and equipment. The Owner will be provided keys for all fenced, secured areas. 1-08.12 Attention to Work (******) This is a new section as follows: The Contractor shall give his personal attention to and shall supervise the Work to the end that it shall be prosecuted faithfully, and when he is not personally present on the Work site, he shall at all times be represented by a competent superintendent who shall have full authority to execute the same, and to supply materials, tools, and labor without delay, and who shall be the legal representative of the Contractor. The Contractor shall be liable for the faithful observance of any instructions delivered to him or to his authorized representative. END OF SECTION 1-08 1-09 Measurement and Payment City of Renton 1-69 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 1-09 MEASUREMENT AND PAYMENT 1-09.1 Measurement of Quantities (******) This section is supplemented with the following: Lump Sum. The percentage of lump sum Work completed, and payment will be based on the cost percentage breakdown of the lump sum bid price(s) submitted at the preconstruction conference. The Contractor shall submit a breakdown of costs for each lump sum bid item. The breakdown shall list the items included in the lump sum together with a unit price of labor, materials, and equipment for each item. The summation of the detailed unit prices for each item shall add up to the lump sum bid. The unit price values may be used as a guideline for determining progress payments or deductions or additions in payment for ordered Work changes. Cubic Yard Quantities. The Contractor shall provide truck trip tickets for progress payments only in the following manner. Where items are specified to be paid by the cubic yard, the following tally system shall be used. All trucks to be employed on this Work will be measured to determine the volume of each truck. Each truck shall be clearly numbered, to the satisfaction of the Engineer, and there shall be no duplication of numbers. Duplicate tally tickets shall be prepared to accompany each truckload of material delivered on the project. All tickets received that do not contain the following information will not be processed for payment: 1. Truck number 2. Quantity and type of material delivered in cubic yards 3. Drivers name, date, and time of delivery 4. Location of delivery, by street and stationing on each street 5. Place for the Engineer to acknowledge receipt 6. Pay item number 7. Contract number and/or name It will be the Contractor's responsibility to see that a ticket is given to the Engineer on the project for each truckload of material delivered. Pay quantities will be prepared on the basis of said tally tickets. Loads will be checked by the Engineer to verify quantity shown on ticket. Quantities by Ton. It will be the Contractor's responsibility to see that a certified weight ticket is given to the Inspector on the project at the time of delivery of materials for each truckload delivered. Pay quantities will be prepared on the basis of said tally tickets, delivered to Inspector at time of delivery of materials. Tickets not receipted by Inspector will not be honored for payment. 1-09 Measurement and Payment City of Renton 1-70 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Each truck shall be clearly numbered to the satisfaction of the Engineer and there shall be no duplication of numbers. Duplicate tickets shall be prepared to accompany each truckload of material delivered to the project. All tickets received that do not contain the following information will not be processed for payment: 1. Truck number 2. Truck tare weight (stamped at source) 3. Gross truckload weight in tons (stamped at source) 4. Net load weight (stamped at source) 5. Driver's name, date, and time of delivery 6. Location for delivery by street and stationing on each street 7. Place for the Engineer to acknowledge receipt 8. Pay item number 9. Contract number and/or name 1-09.2 Weighing Equipment 1-09.2(1) General Requirements for Weighing Equipment (December 30, 2022 APWA GSP, Option 2) Revise item 4 of the fifth paragraph in this section as follows: 4. Test results and scale weight records for each day’s hauling operations are provided to the Engineer daily. Reporting shall utilize WSDOT form 422-027, Scaleman’s Daily Report, unless the printed ticket contains the same information that is on the Scaleman’s Daily Report Form. The scale operator must provide AM and/or PM tare weights for each truck on the printed ticket. 1-09.2(5) Measurement (December 30, 2022 APWA GSP) Revise the first paragraph to read: Scale Verification Checks – At the Engineer’s discretion, the Engineer may perform verification checks on the accuracy of each batch, hopper, or platform scale used in weighing contract items of Work. 1-09.3 Scope of Payment (******) Section 1-09.3 is supplemented by adding the following: The bid items listed in Section 1-09.14 will be the only items for which compensation will be made for the Work described in each section of the Standard Specifications when the Contractor performs the specified Work. Should a bid item be listed in a “Payment” clause but not in the Proposal Form, and Work for that item is performed by the Contractor and the Work is not stated as included in or incidental to a pay item in the Contract and is not Work that would be required to complete the intent of the Contract per Section 1-04.1, then payment for that Work will be made as for Extra Work pursuant to a Change Order. 1-09 Measurement and Payment City of Renton 1-71 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions The words “Bid Item,” “Contract Item,” and “Pay Item,” and similar terms used throughout the Contract Documents are synonymous. If the “payment” clause in the Specifications relating to any unit bid item price in the Proposal Form requires that said unit bid item price cover and be considered compensation for certain Work or material essential to the item, then the Work or material will not be measured or paid for under any other unit bid item which may appear elsewhere in the Proposal Form or Specifications. Pluralized unit bid items appearing in these Specifications are changed to singular form. Payment for bid items listed or referenced in the “Payment” clause of any particular section of the Specifications shall be considered as including all of the Work required, specified, or described in that particular section. Payment items will generally be listed generically in the Specifications, and specifically in the bid form. When items are to be “furnished” under one payment item and “installed” under another payment item, such items shall be furnished FOB project site, or, if specified in the Special Provisions, delivered to a designated site. Materials to be “furnished,” or “furnished and installed” under these conditions, shall be the responsibility of the Contractor with regard to storage until such items are incorporated into the Work or, if such items are not to be incorporated into the Work, delivered to the applicable Contracting Agency storage site when provided for in the Specifications. Payment for material “furnished,” but not yet incorporated into the Work, may be made on monthly estimates to the extent allowed. 1-09.6 Force Account (December 30, 2022 APWA GSP) Supplement this section with the following: The Contracting Agency has estimated and included in the Proposal, dollar amounts for all items to be paid per force account, only to provide a common proposal for Bidders. All such dollar amounts are to become a part of Contractor's total bid. However, the Contracting Agency does not warrant expressly or by implication, that the actual amount of work will correspond with those estimates. Payment will be made on the basis of the amount of work actually authorized by the Engineer. 1-09.7 Mobilization (******) Supplement this section as follows: Mobilization shall also include, but not be limited to, the following items: the movement of Contractor's personnel, equipment, supplies, and incidentals to the project site; project information signs; the establishment of an office, buildings, and other facilities necessary for Work on the project; providing sanitary facilities for the Contractor's personnel; and obtaining permits or licenses required to complete the project not furnished by the Owner. 1. Project Information Signs: Upon commencement of Work, the Contractor shall furnish and erect two Project Information Signs, one at each end of each work area along SE 172nd Street at Engineer approved locations. a. Contractor shall provide sign painting, lettering and detailing by a professional sign maker with Engineer approval prior to placement on job site. 1-09 Measurement and Payment City of Renton 1-72 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions b. The Project Information Sign shall be approximately four feet by eight feet mounted on a wood frame with 4” x 4” treated lumber. c. The Project Information Sign shall contain the following information that the Engineer will provide: SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE PROJECT CONSTRUCTION COST: $______ UP TO $3,225,000 FOR DESIGN AND CONSTRUCTION FUNDED BY THE WASHINGTON STATE DEPARTMENT OF ECOLOGY REMAINING COSTS FUNDED BY THE CITY OF RENTON CITY PROJECT MANAGER: KEVIN EVANS, 425-430-7264 CONTRACTOR: ______ d. The Project Information Sign shall display Ecology’s logo with reference that the project received financial assistance from the Washington State Stormwater Grant Program. e. Contractor shall maintain signs and sign frames in a clearly legible condition throughout the progress of the Work and shall completely remove signs upon project completion. Deliver signs to the City's storage area for future City use. f. No separate payment for Project Information Signs will be made. All costs associated with this item shall be merged with the unit contract price for "Mobilization." Payment will be made for the following bid item(s): “Mobilization & Demobilization,” Lump Sum. 1-09.9 Payments (December 30, 2022 APWA GSP) Section 1-09.9 is revised as follows: The basis of payment will be the actual quantities of Work performed according to the Contract and as specified for payment. The Contractor shall submit a breakdown of the cost of lump sum bid items at the Preconstruction Conference, to enable the Project Engineer to determine the Work performed on a monthly basis. A breakdown is not required for lump sum items that include a basis for incremental payments as part of the respective Specification. Absent a lump sum breakdown, the Project Engineer will make a determination based on information available. The Project Engineer’s determination of the cost of work shall be final. Progress payments for completed work and material on hand will be based upon progress estimates prepared by the Engineer. A progress estimate cutoff date will be established at the preconstruction conference. The initial progress estimate will be made not later than 30 days after the Contractor commences the work, and successive progress estimates will be made every month thereafter until the Completion Date. Progress estimates made during progress of the work are tentative, and made only for the purpose of determining progress payments. The 1-09 Measurement and Payment City of Renton 1-73 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions progress estimates are subject to change at any time prior to the calculation of the final payment. The value of the progress estimate will be the sum of the following: 1. Unit Price Items in the Bid Form — the approximate quantity of acceptable units of work completed multiplied by the unit price. 2. Lump Sum Items in the Bid Form — based on the approved Contractor’s lump sum breakdown for that item, or absent such a breakdown, based on the Engineer’s determination. 3. Materials on Hand — 100 percent of invoiced cost of material delivered to Job site or other storage area approved by the Engineer. 4. Change Orders — entitlement for approved extra cost or completed extra work as determined by the Engineer. Progress payments will be made in accordance with the progress estimate less: 1. Retainage per Section 1-09.9(1), on non FHWA-funded projects; 2. The amount of progress payments previously made; and 3. Funds withheld by the Contracting Agency for disbursement in accordance with the Contract Documents. Progress payments for work performed shall not be evidence of acceptable performance or an admission by the Contracting Agency that any work has been satisfactorily completed. The determination of payments under the contract will be final in accordance with Section 1--05.1. Failure to perform obligations under the Contract by the Contractor may be decreed by the Contracting Agency to be adequate reason for withholding any payments until compliance is achieved. Upon completion of all Work and after final inspection (Section 1-05.11), the amount due the Contractor under the Contract will be paid based upon the final estimate made by the Engineer and presentation of a Final Contract Voucher Certification to be signed by the Contractor. The Contractor's signature on such voucher shall be deemed a release of all claims of the Contractor unless a Certified Claim is filed in accordance with the requirements of Section 1-09.11 and is expressly excepted from the Contractor’s certification on the Final Contract Voucher Certification. The date the Contracting Agency signs the Final Contract Voucher Certification constitutes the final acceptance date (Section 1-05.12). If the Contractor fails, refuses, or is unable to sign and return the Final Contract Voucher Certification or any other documentation required for completion and final acceptance of the Contract, the Contracting Agency reserves the right to establish a Completion Date (for the purpose of meeting the requirements of RCW 60.28) and unilaterally accept the Contract. Unilateral final acceptance will occur only after the Contractor has been provided the opportunity, by written request from the Engineer, to voluntarily submit such documents. If voluntary compliance is not achieved, formal notification of the impending establishment of a Completion Date and unilateral final acceptance will be provided by email with delivery confirmation from the Contracting Agency to the Contractor, which will provide 30 calendar days for the Contractor to submit the necessary documents. The 30 calendar day period will 1-09 Measurement and Payment City of Renton 1-74 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions begin on the date the email with delivery confirmation is received by the Contractor. The date the Contracting Agency unilaterally signs the Final Contract Voucher Certification shall constitute the Completion Date and the final acceptance date (Section 1-05.12). The reservation by the Contracting Agency to unilaterally accept the Contract will apply to Contracts that are Physically Completed in accordance with Section 1-08.5, or for Contracts that are terminated in accordance with Section 1-08.10. Unilateral final acceptance of the Contract by the Contracting Agency does not in any way relieve the Contractor of their responsibility to comply with all Federal, State, tribal, or local laws, ordinances, and regulations that affect the Work under the Contract. Payment to the Contractor of partial estimates, final estimates, and retained percentages shall be subject to controlling laws. (******) Supplement this section as follows: Applications for payment shall be itemized and supported to the extent required by the Engineer by receipts or other vouchers showing payment for materials and labor, payments to subcontractors, and other such evidence of the Contractor's right to payment as the Engineer may direct, including “red line” as-built drawings showing work installed by the contractor during the progress payment period. The Contractor shall submit a progress report with each monthly request for a progress payment. The progress report shall indicate the estimated percent complete for each activity listed on the progress schedule (see Section 1-08.3) and a revised and updated schedule to reflect the most current project completion date. 1-09.9(1) Retainage (******) Section 1-09.9(1) is supplemented as follows: The retained amount shall be released as stated in the Standard Specifications if no claims have been filed against such funds as provided by law, and if the Owner has no unsatisfied claims against the Contractor. In the event claims are filed, the Owner shall withhold, until such claims are satisfied, a sum sufficient to satisfy all claims and to pay attorney's fees. In addition, the Owner shall withhold such amount as is required to satisfy any claims by the Owner against the Contractor, until such claims have been finally settled. Neither the final payment nor any part of the retained percentage shall become due until the Contractor, if requested, delivers to the Owner a complete release of all liens arising out of this Contract, or receipts in full in lieu thereof, and, if required in either case, an affidavit that so far as the Contractor has knowledge or information, the release and receipts include all labor and materials for which a lien could be filed: but the Contractor may, if any subcontractor refuses to furnish a release or receipt in full, furnish a bond satisfactorily to the Engineer to indemnify the Owner against the lien. If any lien remains unsatisfied after all payments are made, the Contractor shall reimburse to the Owner all monies that the latter may be compelled to pay in discharging such lien, including all costs and reasonable engineer's and attorney's fees. 1-09.9(2) Contracting Agency’s Right to Withhold and Disburse Certain Amounts (******) 1-09 Measurement and Payment City of Renton 1-75 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions This is a new section as follows: In addition to monies retained pursuant to RCW 60.28 and subject to RCW 39.04.250, RCW 39.12, and RCW 39.76; the Contractor authorizes the Engineer to withhold progress payments due, or deduct an amount from any payment or payments due the Contractor which, in the Engineer’s opinion, may be necessary to cover the Contracting Agency’s costs for or to remedy the following situations: Damage to another contractor when there is evidence thereof and a claim has been filed. Where the Contractor has not paid fees or charges to public authorities of municipalities, which the Contractor is obligated to pay. Utilizing material tested and inspected by the Engineer, for purposes not connected with the Work (Section 1-05.6). Landscape damage assessments per Section 1-07.16. For overtime Work performed by City personnel per Section 1-08.0(3). Anticipated or actual failure of the Contractor to complete the Work on time: a. Per Section 1-08.9 Liquidated Damages; or b. Lack of construction progress based upon the Engineer’s review of the Contractor’s approved progress schedule, which indicates the Work will not be complete within the contract time. When calculating an anticipated time overrun, the Engineer will make allowances for weather delays, approved unavoidable delays, and suspensions of the Work. The amount withheld under this subparagraph will be based upon the liquidated damages amount per day set forth in Contract Documents multiplied by the number of days the Contractor’s approved progress schedule, in the opinion of the Engineer, indicates the Contract may exceed the Contract Time. Failure of the Contractor to perform any of the Contractor’s other obligations under the Contract, including but not limited to: a. Failure of the Contractor to provide the Engineer with a field office when required by the Contract Provisions. b. Failure of the Contractor to protect survey stakes, markers, etc., or to provide adequate survey Work as required by Section 1-05.4. c. Failure of the Contractor to correct defective or unauthorized Work (Section 1- 05.7). d. Failure of the Contractor to furnish a Manufacture’s Certificate of Compliance in lieu of material testing and inspection as required by Section 1-06.3. e. Failure to submit weekly payrolls, Intent to Pay Prevailing Wage forms, or correct underpayment to employees of the Contractor or subcontractor of any tier as required by Section 1-07.9. f. Failure of the Contractor to pay worker’s benefits (Title 50 and Title 51 RCW) as required by Section 1-07.10. g. Failure of the Contractor to submit and obtain approval of a progress schedule per Section 1-08.3. 1-09 Measurement and Payment City of Renton 1-76 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions The Contractor authorizes the Engineer to act as agent for the Contractor disbursing such funds as have been withheld pursuant to this Section to a party or parties who are entitled to payment. Disbursement of such funds, if the Engineer elects to do so will be made only after giving the Contractor 15 calendar days prior written notice of the Contracting Agency’s intent to do so, and if prior to the expiration of the 15-calendar day period, No legal action has commenced to resolve the validity of the claims, and The Contractor has not protested such disbursement. A proper accounting of all funds disbursed on behalf of the Contractor in accordance with this Section will be made. A payment made pursuant to this section shall be considered as payment made under the terms and conditions of the Contract. The Contracting Agency shall not be liable to the Contractor for such payment made in good faith. 1-09.9(3) Final Payment (******) This is a new section as follows: Upon Acceptance of the Work by the Contracting Agency, the final amount to be paid the Contactor will be calculated based upon a Final Progress Estimate made by the Engineer. Acceptance by the Contractor of the final payment shall be and shall operate as a release: 1. To the Contracting Agency of all claims and all liabilities of the Contractor, other than claims in stated amounts as may be specifically excepted in writing by the Contractor; 2. For all things done or furnished in connection with the Work; 3. For every act and neglect by the Contracting Agency; and 4. For all other claims and liability relating to or arising out of the Work. A payment (monthly, final, retainage, or otherwise) shall not release the Contractor or the Contractor’s Surety from any obligation required under the terms of the Contract Documents or the Contract Bond; nor shall such payment constitute a waiver of the Contracting Agency’s ability to investigate and act upon findings of non-compliance with the WMBE requirements of the Contract; nor shall such payment preclude the Contracting Agency from recovering damages, setting penalties, or obtaining such other remedies as may be permitted by law. Before the Work will be accepted by the Contracting Agency, the Contractor shall submit an affidavit, on the form provided by the Engineer, of amounts paid to certified disadvantaged (DB), minority (MBE) or women business enterprises (WBE) participating in the Work. Such affidavit shall certify the amounts paid to the DB, MBE or WBE subcontractors regardless of tier. On federally funded projects the Contractor may also be required to execute and furnish the Contracting Agency an affidavit certifying that the Contractor has not extended any loans, gratuity or gift and money pursuant to Section 1-07.19 of these Specifications. If the Contractor fails, refuses, or is unable to sign and return the Final Progress Estimate or any other documents required for the final acceptance of the Contract, the Contracting Agency reserves the right to establish a completion date and unilaterally accept the 1-09 Measurement and Payment City of Renton 1-77 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Contract. Unilateral acceptance will occur only after the Contractor has been provided the opportunity, by written request from the Engineer, to voluntarily submit such documents. If voluntary compliance is not achieved, formal notification of the impending unilateral acceptance will be provided by certified letter from the Engineer to the Contractor that will provide 30 calendar days for the Contractor to submit the necessary documents. The 30- calendar day deadline shall begin on the date of the postmark of the certified letter from the Engineer requesting the necessary documents. This reservation by the Contracting Agency to unilaterally accept the Contract will apply to contracts that are completed in accordance with Section 1-08.5 for contracts that are terminated in accordance with Section 1-08.10. Unilateral acceptance of the Contract by the Contracting Agency does not in any way relieve the Contractor of the provisions under contract or of the responsibility to comply with all laws, ordinances, and federal, state, and local regulations that affect the Contract. The date the Contracting Agency unilaterally signs the Final Progress Estimate constitutes the final acceptance date (Section 1-05.12). 1-09.11 Disputes and Claims 1-09.11(2) Claims (******) Revise paragraph 5 in this section as follows: Failure to submit with the Final Application for Payment such information and details as described in this section for any claim shall operate as a waiver of the claims by the Contractor as provided in Section 1-09.9. 1-09.11(3) Time Limitation and Jurisdiction (December 30, 2022 APWA GSP) Revise this section to read: For the convenience of the parties to the Contract it is mutually agreed by the parties that all claims or causes of action which the Contractor has against the Contracting Agency arising from the Contract shall be brought within 180 calendar days from the date of final acceptance (Section 1-05.12) of the Contract by the Contracting Agency; and it is further agreed that all such claims or causes of action shall be brought only in the Superior Court of the county where the Contracting Agency headquarters is located, provided that where an action is asserted against a county, RCW 36.01.050 shall control venue and jurisdiction. The parties understand and agree that the Contractor’s failure to bring suit within the time period provided, shall be a complete bar to all such claims or causes of action. It is further mutually agreed by the parties that when claims or causes of action which the Contractor asserts against the Contracting Agency arising from the Contract are filed with the Contracting Agency or initiated in court, the Contractor shall permit the Contracting Agency to have timely access to all records deemed necessary by the Contracting Agency to assist in evaluating the claims or action. 1-09.13 Claims and Resolutions 1-09.13(1) General (January 19, 2022 APWA GSP) Revise this section to read: Prior to seeking claims resolution through arbitration or litigation, the Contractor shall proceed in accordance with Sections 1-04.5 and 1-09.11. The provisions of Sections 1-04.5 1-09 Measurement and Payment City of Renton 1-78 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions and 1-09.11 must be complied with in full as a condition precedent to the Contractor’s right to seek claim resolution through binding arbitration or litigation. Any claims or causes of action which the Contractor has against the Contracting Agency arising from the Contract shall be resolved, as prescribed herein, through binding arbitration or litigation. The Contractor and the Contracting Agency mutually agree that those claims or causes of action which total $1,000,000 or less, which are not resolved by mediation, shall be resolved through litigation unless the parties mutually agree in writing to resolve the claim through binding arbitration. The Contractor and the Contracting Agency mutually agree that those claims or causes of action in excess of $1,000,000, which are not resolved by mediation, shall be resolved through litigation unless the parties mutually agree in writing to resolve the claim through binding arbitration. 1-09.13(3)A Arbitration General (January 19, 2022 APWA GSP) Revise the third paragraph to read: The Contracting Agency and the Contractor mutually agree to be bound by the decision of the arbitrator, and judgment upon the award rendered by the arbitrator may be entered in the Superior Court of the county in which the Contracting Agency’s headquarters is located, provided that where claims subject to arbitration are asserted against a county, RCW 36.01.050 shall control venue and jurisdiction of the Superior Court. The decision of the arbitrator and the specific basis for the decision shall be in writing. The arbitrator shall use the Contract as a basis for decisions. 1-09.13(3)B Procedures to Initiate Arbitration (******) Supplement this section as follows: The findings and decision of the board of arbitrators shall be final and binding on the parties, unless the aggrieved party, within 10 days, challenges the findings and decision by serving and filing a petition for review by the superior court of King County, Washington. The grounds for the petition for review are limited to showing that the findings and decision: 1. Are not responsive to the questions submitted; 2. Is contrary to the terms of the contract or any component thereof; 3. Is arbitrary and/or is not based upon the applicable facts and the law controlling the issues submitted to arbitration. The board of arbitrators shall support its decision by setting forth in writing their findings and conclusions based on the evidence adduced at any such hearing. The arbitration shall be conducted in accordance with the statutes of the State of Washington and court decisions governing such procedure. The costs of such arbitration shall be borne equally by the City and the Contractor unless it is the board's majority opinion that the Contractor's filing of the protest or action is capricious 1-09 Measurement and Payment City of Renton 1-79 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions or without reasonable foundation. In the latter case, all costs shall be borne by the Contractor. 1-09.13(4) Venue for Litigation (December 30, 2022 APWA GSP) Revise this section to read: Litigation shall be brought in the Superior Court of the county in which the Contracting Agency’s headquarters is located, provided that where claims are asserted against a county, RCW 36.01.050 shall control venue and jurisdiction of the Superior Court. It is mutually agreed by the parties that when litigation occurs, the Contractor shall permit the Contracting Agency to have timely access to all records deemed necessary by the Contracting Agency to assist in evaluating the claims or action. 1-09.14 Payment Schedule (******) Section 1-09.14 is a new section: Measurement and Payment Schedule for Bid Items in This Project Proposal. GENERAL 1-09.14(1) Scope (******) Section 1-09.14(1) is a new section: A. Payment for the various items of the bid sheets, as further specified herein, shall include all compensation to be received by the Contractor for furnishing all tools, equipment, supplies, and manufactured articles, and for all labor, operations, and incidentals appurtenant to the items of Work being described, as necessary to complete the various items of the Work all in accordance with the requirements of the Contract Documents, including all appurtenances thereto, and including all costs of compliance with the regulations of public agencies having jurisdiction, including Safety and Health Administration of the U.S. Department of Labor (OSHA). No separate payment will be made for any item that is not specifically set forth in the Bid Schedules, and all costs therefore shall be included in the prices named in the Bid Schedules for the various appurtenant items of Work. B. The Owner shall not pay for material quantities, which exceed the actual measured amount used and approved by the Engineer. C. It is the intention of these Specifications that the performance of all Work under the bid for each item shall result in the complete construction, in an accepted operating condition, of each item. D. Work and material not specifically listed in the proposal but required in the Plans, Specifications, and general construction practice, shall be included in the bid price. No separate payment will be made for these incidental items. 1-09.14(2) Bid Items (******) Section 1-09.14(2) is a new section: 1-09 Measurement and Payment City of Renton 1-80 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions This section describes the bid items. Measurement and Payment, where described in a bid item, shall supersede Measurement and Payment listed in other sections of the Special Provisions and Standard Specifications. All bid items under “Schedule A – Roadway and Storm Drainage” and “Schedule D – Roadway Miscellaneous” shall follow State Sales Tax – Rule 171 per Section 1-07.2(2). All bid items under “Schedule B – Water Relocations” and “Schedule C –Sewer Relocations” shall follow State Sales Tax – Rule 170 per Section 1-07.2(3). 1-09.14(2)A Bid Items Specific to Schedule A – Roadway and Storm Drainage 1-09.14(2)A1 Minor Changes (Bid Item A1) – Estimate (EST) For the purpose of providing a common proposal for all bidders, the Contracting Agency has entered an amount for “Minor Changes” in the Proposal to become a part of the total bid by the Contractor. At the discretion of the Contracting Agency, all or part of this estimated amount may be used in lieu of the more formal procedure as outlined in Section 1-04.4 of the Standard Specifications. The unit contract price for “Minor Changes” is given in the Schedule of Prices and shall not be changed by the bidder. All work and payment under this item will be authorized in writing by the City Project Manager or Supervisor. Payment will be determined in accordance with Section 1-09.4 of the Standard Specifications. Payment for this item will be only for the changes and amounts approved by the City. If no changes are authorized under this bid item, final payment for this item will be $0 (zero). 1-09.14(2)A2 Construction Surveying, Staking, and As-Built Drawings (Bid Item A2) – Lump Sum Measurement for "Construction Surveying, Staking and As-Built Drawings” will be per the lump sum bid price and based on the percentage of total Work complete at the time of measurement. Payment may be prorated over the construction period based on the amount of work completed for construction surveying, staking and as-built information. Survey will be per Special Provision Section 1-05.4 and City of Renton Surveying Standards in Special Provision Section 1-11. The as-built survey will be per Special Provision Section 1-11. The contractor shall provide the City with a set of redline drawings with the as-built locations and elevations of all new utilities and construction work. Payment will be complete compensation for all labor, materials, equipment, tools, all incidental work needed to provide construction surveying and of the improvements (including providing a Washington State licensed surveyor for said work), staking in advance of pipe laying, fittings and structure installation, surveying the horizontal and vertical locations of all potholed existing utilities within the work area, verification and recording of the elevations of existing roadway centerline, crown, and edge of pavement to ensure that all roadways can be reconstructed to existing grade, and preparation of cut-sheets. Said payment will be complete compensation for all labor, materials, equipment, tools, all incidental work needed to provide as-built surveying, preparing “red line” as-built drawings for pay estimate submittal with fittings and dimensions of existing and proposed facilities installed or encountered during the pay period, furnishing an electronic file with construction 1-09 Measurement and Payment City of Renton 1-81 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions drawings stamped and signed by a licensed land surveyor that contains the as-built information and copies of field notes, and furnishing and resetting property corners when disturbed by the contractor’s activities. No more than 50% of the bid amount for this item shall be paid prior to the review and acceptance of the as-constructed information by the Engineer. 1-09.14(2)A3 Resolution of Utility Conflicts (Bid Item A3) – Estimate "Resolution of Utility Conflicts" will be paid by force account as provided in Section 1-09.6. For the purpose of providing a common proposal for all bidders, the Contracting Agency has entered an amount for “Resolution of Utility Conflicts” in the Proposal to become a part of the total bid by the Contractor. At the discretion of the Contracting Agency, all or part of this estimated amount may be used in lieu of the more formal procedure as outlined in Section 1-04.4 of the Standard Specifications. The unit contract price for “Resolution of Utility Conflicts” is given in the Schedule of Prices and shall not be changed by the bidder. All work and payment under this item will be authorized in writing by the City Project Manager or Supervisor. Payment will be determined in accordance with Section 1-09.4 of the Standard Specifications. Payment for this item will be only for the changes and amounts approved by the City. If no changes are authorized under this bid item, final payment for this item will be $0 (zero). 1-09.14(2)A4 Site Specific Potholing (Bid Item A4) – Each Measurement for “Site Specific Potholing” will be per each pothole locate completed as defined in Section 1-07.17(3). “Site Specific Potholing” is intended to be additional potholing as directed by the Engineer, which is in addition to potholing included as incidental for utility installation. Only potholes approved by the City inspector or Engineer will be approved for payment. All other potholes will be considered a benefit to the contractor and included in the contract unit price for the utility to be installed. If no specific pothole requests are made during construction, final payment for this item will be $0 (zero). 1-09.14(2)A5 SPCC Plan and Implementation (Bid Item A5) – Lump Sum Measurement and payment for “Spill Prevention, Control, and Countermeasure (SPCC) Plan and Implementation” shall be per WSDOT Standard Specification 1-07.15. 1-09.14(2)A6 Mobilization & Demobilization (Maximum Bid 10% of All Schedules Total) (Bid Item A6) – Lump Sum Measurement for “Mobilization & Demobilization” will be lump sum. The lump sum price shown will cover the complete cost of furnishing and installing, complete and in-place all Work and materials necessary to move and organize equipment and personnel onto the job site, provide and maintain all necessary support facilities and utilities, obtain all necessary permits and licenses, conduct pre-construction photography and video inspection, prepare the site for construction operations, and maintain the site and surrounding areas during construction, provide protection of existing utilities, provide component and system testing, 1-09 Measurement and Payment City of Renton 1-82 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions move all personnel and equipment off the site after contract completion and provide post- construction photography and video inspection. Also included shall be a Type B Progress Schedule and weekly look ahead schedules. The Contractor shall prepare a Mobilization Plan showing the proposed location for storage of all equipment and material proposed to be located at the site. Storage shall not interfere with use of the City ROW and commercial and residential access. For any proposed storage on private property outside the easement or work area, the Contractor shall obtain a Temporary Use Permit for storage areas on private property. The Contractor shall be responsible for all fees, applications, and work needed to obtain the permit. The Contractor shall allow 3 to 4 weeks to obtain the Temporary Use Permit from the City. The Contractor shall prepare a Work Plan that shall include the following: 1. Proposed Construction Sequence and Schedule including a Type B Progress Schedule for all major items of work. 2. Mobilization Plan showing the proposed location for storage of all equipment and materials. 3. Provisions for cleaning and sweeping of any impacted roadways. 4. Gas, Water, and Sewer Protection Plan. 5. Identify Disposal Sites for various waste materials and provide copies of the site’s permits, licenses, and approvals. 6. Health and Safety Plan and Accident Prevention Program The Work Plan shall be submitted to the City for review and approval at a minimum 7 calendar days prior to the preconstruction meeting. Payment for “Mobilization & Demobilization” will be made at the lump sum amount bid (NOT to exceed 80% of bid price prior to completion of construction) based on the percent of completed Work as defined in the 2024 Standard Specifications for Road, Bridge, and Municipal Construction (WSDOT) for mobilization. Payment for the remaining 20% will be made upon completion and final clean-up of the construction site. Such payment will be complete compensation for all mobilization of employees, equipment and materials, Mobilization Plan, Work Plan, preparation of all necessary submittals, bonds, insurance, site improvements, permits, clean-up, safety plan, and other plans/submittals not specifically covered in bid items, etc. all in conformance with the Contract Documents. This bid item may not be more than: · Ten percent (10%) of the total amount of Bid for all Schedules. 1-09.14(2)A7 Shoring or Extra Excavation Class B (Bid Item A7) – Square Foot Measurement for "Shoring or Extra Excavation Class B” will be by the square foot. The area for payment will be one vertical plane measured along the centerline of the trench, including Structures. Measurement will be made from the existing ground line to the bottom of the excavation and for the length of the Work actually performed. If the Contract includes a pay item for grading to remove materials, the upper limit for measurement will be the neat lines 1-09 Measurement and Payment City of Renton 1-83 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions of the grading section shown in the Plans. The bottom elevation for measurement will be the bottom of the excavation as shown in the Plans or as otherwise established by the Engineer. Payment for "Shoring or Extra Excavation Class B” will be made at the measured per square foot, said payment will be complete compensation for all equipment, labor, materials, hauling, planning, design, engineering, submittals, furnishing and constructing and removal and disposal of such temporary sheeting, shoring, and bracing complete as required under the provisions of any permits and in the requirements of OSHA and RCW Chapter 49.17, etc., required to complete this item of Work in conformance with the Contract Documents. The unit Contract price per square foot shall be full pay for all excavation, backfill, compaction, and other Work required when extra excavation is used in lieu of constructing shoring. If select backfill material is required for backfilling within the limits of the Structure excavation, it shall also be required as backfill material for the extra excavation at the Contractor’s expense. The work includes, but not limited to, preparing, and submitting a shoring plan stamped by a professional engineer registered in the State of Washington by the preconstruction conference. 1-09.14(2)A8 Apprenticeship Incentive (Bid Item A8) – Lump Sum Measurement and payment for “Apprenticeship Incentive” shall be per Specification 1- 07.9(3). 1-09.14(2)A9 Apprenticeship Penalty (Bid Item A9) – Estimate Measurement and payment for “Apprenticeship Penalty” shall be per Specification 1-07.9(3). 1-09.14(2)A10 Project Temporary Traffic Control (Bid Item A10) – Lump Sum Measurement for “Project Temporary Traffic Control” Work will be will per lump sum and shall be based on the percentage of total work complete, at the time of measurement in conformance with the Contract Documents. Payment for “Project Temporary Traffic Control” for Work will be made at the measured percentage amount for the pay period times the lump sum bid amount. Payment will be complete compensation for preparing and submitting a Traffic Control Plan and Pedestrian Handling Plan as well as all labor, tools, materials, equipment used in accordance with the approved Traffic Control Plan and Pedestrian Handling Plan that is not included in other bid items. The lump sum contract price shall be full pay for all costs for performing the work described in Special Provision Section 1-10.3, and in the Traffic Control Plan drawings. Payment shall include but not be limited to providing for public convenience and safety, flaggers, off-duty uniformed police officers, traffic control supervisor, construction signs, detours, barricades, sequential arrow boards, a minimum of two Portable Changeable Message Signs, traffic control devices, truck-mounted attenuator, temporary striping, cleanup, etc. required to complete this item of Work in conformance with the Contract Documents and the Manual on Uniform Traffic Control Devices (MUTCD) and as directed by the Engineer and by the City’s Transportation Department. Also, included in the contract price is the cost to furnish traffic control services and equipment for construction surveying, staking, and as-built plans. 1-09 Measurement and Payment City of Renton 1-84 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions All adjustments to the Traffic Control Plan are considered incidental, and no additional payment will be made for adjustments. 1-09.14(2)A11 Clearing and Grubbing (Bid Item A11) – Lump Sum Measure and payment for “Clearing and Grubbing” shall be shall be per WSDOT Standard Specification 2-01. Tree removal for tree with diameter at breast height (dbh) greater than 12-inches is included in other bid items. 1-09.14(2)A12 Removal of Structures and Obstructions (Bid Item A12) – Lump Sum Measurement for “Removal of Structures and Obstructions” Work will be will per lump sum and shall be based on the percentage of total work complete, at the time of measurement in conformance with the Contract Documents. Payment for “Removal of Structures and Obstructions” for Work will be made at the measured percentage amount for the pay period times the lump sum bid amount. Payment will be complete compensation for all labor, tools, materials, equipment used in accordance with WSDOT Standard Specification 2-02. If pavements, sidewalks, curbs, or gutters lie within an excavation area for structures and pipes, their removal will be paid for as part of that bid item requiring excavation. The following table provides an estimate of the quantities for Removal of Structures and Obstructions. These quantities will not be specifically measured. However, the following approximate quantities have been estimated for the bidders’ convenience. The removal of water main, sanitary side sewer pipe and sewer force main pipe will be paid under separate bid items in Schedules B and C. Item Unit Quantity Stormwater Pipe LF 509 Catch Basins EA 14 Concrete Driveways SY 930 Pavement Removal Required for Landscape Strip SY 792 1-09.14(2)A13 Sawcutting (Bid Item A13) – Linear Foot Sawcutting existing cement and asphalt concrete pavements shall be measured by the linear foot along the sawcut, full depth. Wheel cutting of pavement will not be measured for separate payment, but shall be included in other items of Work. Payment for sawcutting shall include all labor, materials and equipment costs to sawcut the pavement, full depth, at the locations shown on the plans and as directed by the engineer. The unit contract price per linear foot for "Sawcutting" shall be full pay for performing the work as specified, including containment, collection, and disposal of all sawcutting debris and wastewater. Payment for Sawcutting will be made for a single full depth sawcut at the 1-09 Measurement and Payment City of Renton 1-85 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions original sawcut. No additional payment will be made for fresh sawcuts made to replace damaged or raveled edges. Payment per linear foot shall include all sawcutting regardless of depth or type of material cut. 1-09.14(2)A14 Removal and Replacement of Unsuitable Material (Bid Item A14) – Cubic Yard Measurement for “Removal and Replacement of Unsuitable Material” will be measured by the cubic yard based on the placed volume of material installed in conformance with the Contract Documents. Placement of foundation material will be measured only for the area(s) authorized by the Engineer. Certified tickets will accompany each load, a copy of tickets will be given to the Engineer daily. Wasted materials will not be included in the measurement or payment. If no removal and replacement of unsuitable material is authorized under this bid item, final payment for this item will be $0 (zero). Payment for “Removal and Replacement of Unsuitable Material” will be made at the unit bid price, which will be complete compensation for all labor, materials, tools, equipment, excavation, foundation materials, haul, placement, water, compaction, removal haul and disposal of waste material, etc., required to complete this item of Work in conformance with the Contract Documents. Payment for this item will be only for the “Removal and Replacement of Unsuitable Material” requested by the City. 1-09.14(2)A15 Crushed Surfacing Top Course (Bid Item A15) – Ton Measurement and payment for “Crushed Surfacing Top Course” shall be per WSDOT Standard Specification 4-04. 1-09.14(2)A16 HMA Cl. 1/2 In. PG 58H-22 (Bid Items A16) – Ton Measurement for “HMA Cl. 1/2 In. PG 58H-22” will be by the ton in accordance with Special Provision Section 1-09.2, with no deduction being made for the weight of asphalt binder, blending sand, mineral filler, or any other component of the HMA. Payment for “HMA Cl. 1/2 In. PG 58H-22”, per ton shall include, but not necessarily be limited to, all necessary materials, labor, and equipment to satisfactorily complete furnishing, hauling and placement of HMA, compaction, preparation of existing roadway surfaces, sealing of pavement, applying tack coat and all other necessary materials, labor and equipment to satisfactorily complete the work as defined in the Standard Specifications and Special Provisions. 1-09.14(2)A17 Planing Bituminous Pavement (Bid Item A17) – Square Yard “Planing Bituminous Pavement” will be measured by the square yard. Payment for “Planing Bituminous Pavement” to a depth of 2-inches shall be per square yard. Items in the bid price shall include, but not necessarily be limited to, all necessary materials, labor, equipment, and full depth sawcutting and sealing of pavement to perform the work described in Special Provision Section 5-04.3(14). 1-09 Measurement and Payment City of Renton 1-86 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 1-09.14(2)A18 Thickened Edge (Bid Item A18) – Linear Foot Measurement of length of “Thickened Edge” will be the number of linear feet of completed installation measured along the edge. “Thickened Edge” placed in excess of the length shown on the plans or designated by the Engineer will not be paid for. Payment for “Thickened Edge”, per linear foot shall include all labor, materials, and equipment required to complete this item of Work in conformance with the Contract Documents. 1-09.14(2)A19 Speed Cushion (Bid Item A19) – Each Measurement for “Speed Cushion” will be per each of completed installation. Payment for “Speed Cushion”, per each shall include all labor, materials, and equipment required to complete this item, including, but not limited to HMA placement and pavement markings, as shown in the Plans and in conformance with the Contract Documents. 1-09.14(2)A20 Pervious Cement Conc. Sidewalk (Bid Items A20) – Square Yard Pervious Cement Conc. Sidewalk shall be measured per square yard of finished surface. The unit Contract price for “Pervious Cement Conc. Sidewalk” per square yard shall be full compensation for the costs of all labor, tools, equipment, and materials necessary or incidental to comply with the requirements of Sections 2-06.3(3) and 4-04.2, and construct the pervious concrete sidewalk as specified in Sections 5-07 and 8-14. Work elements include, but are not limited to, protecting the subgrade; furnishing and installing permeable ballast and geotextile under the sidewalk, performing mix designs; developing and implementing the Jointing Plan; saw cut joints, test plot; forming, including; testing; coordinating and scheduling with Engineer for infiltration testing of both subgrade and pervious concrete; and purchasing, procuring, placing, finishing pervious concrete adjustment of forms as required to meet ADA standards with maximum 2-percent cross- slope. 1-09.14(2)A21-A27 ____________ Sewer Pipe, ___ In. Diam. (Bid Items A21 to A27) – Linear Foot Measurement for “_____ Sewer Pipe, __ In. Diam.” will be based on linear foot measured horizontally over the centerline of the installed pipe from the center of structures in conformance with the Contract Documents. Payment for furnishing and installing “______ Sewer Pipe, __ In. Diam.” will be made at the amount bid per linear foot, which payment will be complete compensation for: · All labor, materials, equipment, and hauling · Structural excavation class B, including removal of waste material in the excavation limits such as existing pavement · Locating all existing utilities with potholing, as necessary, in advance to determine their horizontal and vertical location · Protecting and providing temporary support of existing utilities 1-09 Measurement and Payment City of Renton 1-87 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions · Temporary bypass pumping and control of water, if needed · Pipe of the size and material type required, gaskets, fittings and adaptors · Pipe coupler to connect to existing pipes and couplings for dissimilar pipe materials · Installing, laying, and jointing pipe and fittings · Plugging existing pipes to be abandoned and plugging existing pipes where sections have been removed for the storm installation and providing end caps where shown on the plans (per Sections 7-04.3(2) and 7-05.3(2)). These items shall not be limited to those mentioned on the Plans or specified herein. · Furnishing, placing, and compacting pipe zone bedding material · Performing backfill compaction tests and furnishing test reports to the Engineer · Appurtenances, ethafoam pads, water, grading, cleaning, and testing, etc. required to complete the work in accordance with the Contract Documents · Replacing, protecting and/or maintaining existing utilities · Furnishing and placing temporary hot mix asphalt patching. Temporary hot mix asphalt includes all hot mix asphalt and/or temporary asphalt that is not part of the trench patch and overlay. Select Borrow for Trench Backfill above the pipe zone bedding is included in other bid items. Removal and replacement of unsuitable material is included in other bid items. 1-09.14(2)A28 Select Borrow for Trench Backfill (Bid Item A28) – Ton Measurement for “Select Borrow for Trench Backfill” will be measured in tons based on the weight of material installed into the Work in conformance with the Contract Documents. Certified weight tickets will accompany each load, a copy of tickets will be given to the Engineer daily. Wasted materials will not be included in the measurement or payment. Only materials placed within the pay limits shown will be considered for payment. Material placed outside of the pay limits shown on the Plans or as approved by the Engineer will be deducted from the certified tickets. Payment for “Select Borrow for Trench Backfill” will be made at the amount bid per ton, which payment will be complete compensation for all labor, materials, tools, equipment, incidentals necessary to furnish and install select import backfill, hauling, placement, compaction, removal, haul and disposal of unsuitable excavated materials, waste and surplus materials, etc., required to complete this item of Work in conformance with the Contract Documents. 1-09.14(2)A29 CCTV Inspection (Bid Item A29) – Linear Foot Measurement for “CCTV Inspection” will be per linear foot of stormwater pipe inspected in conformance with Special Provision Section 7-04.3(3) and the Contract Documents. Payment for “CCTV Inspection” will be made at the amount bid per linear foot, which payment will be complete compensation for all labor, materials, equipment required to complete the work specified in the Contract Documents and plans, and shall include, but not be limited to the following: 1-09 Measurement and Payment City of Renton 1-88 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions · Temporary bypass pumping, if needed · CCTV Inspection of all new open-cut installed stormwater pipe · Delivery of the CCTV inspections entirely in a Pipeline Assessment Certification Program (PACP) compatible format data base on an external hard drive to the Engineer Costs for additional CCTV inspection required to verify corrections or replacement of pipe, or done solely for the Contractor’s convenience, shall be at the Contractor’s sole expense. 1-09.14(2)A30 Concrete Inlet (Bid Item A30) – Each Measurement for furnishing and installing “Concrete Inlet” will be per each for each catch basin installed in conformance with the Contract Documents. Payment for furnishing and installing “Concrete Inlet” will be made at the unit bid price per each, which will be complete compensation for: · All labor, equipment, materials, and hauling · Structural excavation class B, including removal of waste material in the excavation limits such as existing pavement · Protecting and providing temporary support of existing utilities · Furnishing, placing, and compacting foundation material · Performing backfill compaction tests and furnishing test reports to the Engineer · Temporary bypass pumping and control of water, if needed · Plugging existing pipes to be abandoned and plugging existing pipes where sections have been removed for the storm installation and providing end caps where shown on the plans (per Sections 7-04.3(2) and 7-05.3(2)). These items shall not be limited to those mentioned on the Plans or specified herein. · Precast concrete inlet and risers, gaskets, inlet frame and grate or lid, installation, adjustment of frames to grade, appurtenances, Kor-N-Seal boots (or approved equal), connections to new pipes, connections to existing pipes, placement of subsequent backfill materials, compaction, water, cleaning, and testing, etc. required in conformance with the Contract Documents. · Furnishing and placing temporary hot mix asphalt patching. Temporary hot mix asphalt includes all hot mix asphalt and/or temporary asphalt that is not part of the trench patch and overlay. Select Borrow backfill material is included in other bid items. Maximum pay limit for Select Borrow imported backfill material around structures shall be limited to 3-feet. 1-09.14(2)A31 - A33 Catch Basin Type __ (Bid Items A31, A32, & A33) – Each Measurement for furnishing and installing “Catch Basin Type __” will be per each for each catch basin installed in conformance with the Contract Documents. 1-09 Measurement and Payment City of Renton 1-89 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Payment for furnishing and installing “Catch Basin Type __” will be made at the unit bid price per each, which will be complete compensation for: · All labor, equipment, materials, and hauling · Structural excavation class B, including removal of waste material in the excavation limits such as existing pavement · Locating all existing utilities in advance to determine their horizontal and vertical location · Pipe stub with coupler to connect to existing pipes and couplings for dissimilar pipe material, unless a section of new pipe is shown in the Plans prior to the connection with the existing pipe. · Protecting and providing temporary support of existing utilities · Furnishing, placing, and compacting foundation material · Performing backfill compaction tests and furnishing test reports to the Engineer · Temporary bypass pumping and control of water, if needed · Plugging existing pipes to be abandoned and plugging existing pipes where sections have been removed for the storm installation and providing end caps where shown on the plans (per Sections 7-04.3(2) and 7-05.3(2)). These items shall not be limited to those mentioned on the Plans or specified herein. · Precast concrete catch basin and risers, gaskets, catch basin frame and grate or lid, installation, adjustment of frames to grade, appurtenances, Kor-N-Seal boots (or approved equal), connections to new pipes, connections to existing pipes, water, cleaning, and testing, etc. required in conformance with the Contract Documents. · Furnishing and placing temporary hot mix asphalt patching. Temporary hot mix asphalt includes all hot mix asphalt and/or temporary asphalt that is not part of the trench patch and overlay. Select Borrow backfill material is included in other bid items. Maximum pay limit for Select Borrow imported backfill material around structures shall be limited to 3-feet. Removal and replacement of unsuitable material is included in other bid items. 1-09.14(2)A34 120in x 72in Rectangular Structure (Bid Item A34) – Each Measurement for furnishing and installing “120in x 72in Rectangular Structure” will be per each for each structure installed in conformance with the Contract Documents. Payment for furnishing and installing “120in x 72in Rectangular Structure” will be made at the unit bid price per each, which will be complete compensation for: · Site investigations to confirm the location, depth and size of connecting pipes for coordination of Type 3E Shop Drawings · Coordinating with manufacturer on structure size and pipe knock-out locations · Type 3E Shop Drawings for approval prior to ordering the structure · All labor, equipment, materials, and hauling 1-09 Measurement and Payment City of Renton 1-90 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions · Structural excavation class B, including removal of waste material in the excavation limits such as existing pavement · Protecting and providing temporary support of existing utilities · Temporary bypass pumping and control of water, if needed · Furnishing, placing, and compacting foundation material · Performing backfill compaction tests and furnishing test reports to the Engineer · Plugging existing pipes to be abandoned and plugging existing pipes where sections have been removed for the storm installation and providing end caps where shown on the plans (per Sections 7-04.3(2) and 7-05.3(2)). These items shall not be limited to those mentioned on the Plans or specified herein. · Precast concrete risers, frame and grate or lid, installation, adjustment of frames to grade, appurtenances, Kor-N-Seal boots (or approved equal), connections to new pipes, connections to existing pipes, cleaning, and testing, required in conformance with the Contract Documents. · Furnishing and placing temporary hot mix asphalt patching. Temporary hot mix asphalt includes all hot mix asphalt and/or temporary asphalt that is not part of the trench patch and overlay. Select Borrow backfill material is included in other bid items. Maximum pay limit for Select Borrow imported backfill material around structures shall be limited to 3-feet. Removal and replacement of unsuitable material is included in other bid items. 1-09.14(2)A35 & A36 BioPod ___ (Bid Item A35 & A36) – Each Measurement for furnishing and installing “BioPod __” will be per each for each BioPod unit installed in conformance with the Contract Documents. Payment for furnishing and installing “BioPod __” will be made at the unit bid price per each, which will be complete compensation for: · All labor, materials, equipment, and hauling · Structural excavation class B, including removal of waste material in the excavation limits such as existing pavement · Locating all existing utilities to determine their horizontal and vertical location · Protecting and providing temporary support of existing utilities · Temporary bypass pumping and control of water, if needed · BioPod unit, installation, grates and lids, excavation, furnishing, placing, and compacting gravel base and backfill materials, adjustment of frames to grade, appurtenances, Kor-N-Seal boots (or approved equal), connections to new pipes, water, cleaning, testing, facility activation, and one year of inspection and maintenance by the supplier required in conformance with the Contract Documents. · Replacing, protecting and/or maintaining existing utilities · Performing backfill compaction tests and furnishing test reports to the Engineer 1-09 Measurement and Payment City of Renton 1-91 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions · Plugging existing pipes to be abandoned and plugging existing pipes where sections have been removed for the storm installation and providing end caps where shown on the plans (per Sections 7-04.3(2) and 7-05.3(2)). These items shall not be limited to those mentioned on the Plans or specified herein · Furnishing and placing temporary hot mix asphalt patching. Temporary hot mix asphalt includes all hot mix asphalt and/or temporary asphalt that is not part of the trench patch and overlay. 1-09.14(2)A37 Dewatering (Bid Item A37) – Lump Sum Measurement for “Dewatering” will be based on the lump sum bid price in conformance with the Contract Documents. The lump sum price for “Dewatering” shall be full pay for all labor, material, tools, equipment, and other incidental costs required to prepare the Ground Water Control Plan as described in Special Provision Section 7-06.2(3) and implement the approved Ground Water Control Plan as described in Special Provision Section 7-06 including but not limited to design, furnishing, installation, operation, maintenance, monitoring, decommissioning, and removal of a dewatering system or systems to achieve proper completion of all work performed under this Contract. Dewatering includes removal and proper discharge of all water, including, but not limited to, groundwater, surface water, precipitation, and treated contaminated water. Incidental items may include, but are not limited to, sumps, wells, well points, monitoring systems, piping, associated aggregates, discharge testing, corrective actions, and other work necessary to meet the contract and permit requirements, not otherwise shown as a separate payment item. Payment shall also include the Contractor’s use of Baker Tanks, as needed during construction and associated labor, tools, equipment and incidental costs including temporary above ground storage tank mobilization, set up, maintenance, and relocation as work progresses, and incidentals required to use temporary above ground storage tanks, when needed to meet regulatory discharge requirements. Work shall include coordination, permitting, fees including monthly rates on discharge, approval, and treatment required by Soos Creek Water and Sewer District as required in Special Provision Section 1-07.15 if discharging to the sanitary sewer. 1-09.14(2)A38 SWPPP and TESC Plan and Implementation (Bid Item A38) – Lump Sum Measurement for “SWPPP and TESC Plan and Implementation” will be based on the lump sum bid price in conformance with the Contract Documents. The lump sum price for “SWPPP and TESC Plan and Implementation” shall be full pay for all labor, material, tools, equipment, and other incidental costs required to prepare the Stormwater Pollution Prevention Plan and Temporary Erosion and Sediment Control Plan as described in Special Provision Section 1-07.15 and implement the temporary erosion and sediment control BMPs described in Special Provision Section 8-01 including but not limited to installation, monitoring, and maintenance of catch basin inserts, filter fabric fencing, sediment ponds, straw wattles, pumping of construction water, temporary storm drain diversions including temporary piping, check dams, cover measures including plastic covering, street sweeping, collection and disposal of wastewater from asphalt and concrete 1-09 Measurement and Payment City of Renton 1-92 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions cutting operations, conduct water quality testing and reporting, permitting fees, fines, or other costs, and other work necessary to meet the contract and permit requirements, not otherwise shown as a separate payment item. Payment shall also include the Contractor’s use of temporary above ground storage tanks, as needed during construction and associated labor, tools, equipment and incidental costs including temporary above ground storage tank mobilization, set up, maintenance, and relocation as work progresses, and incidentals required to use temporary above ground storage tanks when needed to meet regulatory discharge requirements. Payment shall also include the following: · Transferring ownership of the CSWGP from the City of Renton to the Contractor. · Closing out the CSWGP and obtaining approval from the Department of Ecology on permit closure. · All monitoring and reporting required for compliance with the CSWGP. Work shall include coordination, permitting, fees including monthly rates on discharge, approval, and treatment required by the Soos Creek Water and Sewer District as required in Special Provision Section 1-07.15 if discharging to the sanitary sewer. 1-09.14(2)A39 Roadside Restoration (Bid Item A39) – Lump Sum Measurement for “Roadside Restoration” shall be lump sum, and based on the percentage of total Work complete, at the time of measurement in conformance with the Contract Documents. Lump sum quantities shall include the following measurements: · Seeded Lawn Installation shall be along the ground slope line of actual lawn completed, established, and accepted. · Topsoil Type A. Certified tickets will accompany each load, a copy of tickets will be given to the Engineer daily. · Bark or Wood Chip Mulch. Certified tickets will accompany each load, a copy of tickets will be given to the Engineer daily. · Coarse Compost. Certified tickets will accompany each load, a copy of tickets will be given to the Engineer daily. The following table provides an estimate of the quantities for roadside restoration. The quantities will not be specifically measured. However, the following approximate quantities have been estimated for the bidders’ convenience. Item Unit Quantity Seeded Lawn SY 1035 Topsoil Type A CY 175 Bark Mulch SY 25 Wood Chip Mulch SY 50 Course Compost SY 1035 1-09 Measurement and Payment City of Renton 1-93 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Payment for Roadside restoration, lump sum includes payment for Seeded Lawn Installation, Topsoil Type A, Bark or Wood Chip Mulch, and Coarse Compost, and will constitute full compensation for all labor, materials and equipment required to complete the specified Work. Payment for embankment compaction will not be made as a separate item. All costs for embankment compaction shall be included in other bid items involved. Roadway excavation including haul is incidental, for the removal of existing asphalt and concrete areas to be restored landscaping and for subsurface excavation for topsoil and soil amendments. Any topsoil used for leveling the landscape strip shall be incidental. 1-09.14(2)A40 Cement Conc. Traffic Curb And Gutter (Bid Item A40) – Linear Foot Measurement and payment for Cement Conc. Traffic Curb And Gutter” shall be per WSDOT Standard Specification 8-04. 1-09.14(2)A41 Cement Conc. Traffic Curb (Bid Item A41) – Linear Foot Measurement and payment for Cement Conc. Traffic Curb And Gutter” shall be per WSDOT Standard Specification 8-04. 1-09.14(2)A42 Mountable Cement Conc. Traffic Curb (Bid Item A42) – Linear Foot Measurement for “Mountable Cement Conc. Traffic Curb” shall be per WSDOT Standard Specification 8-02. Payment for “Mountable Cement Conc. Traffic Curb”, per linear foot shall include all labor, materials, and equipment required to perform the work as required to complete this item of Work in conformance with Plans and the Contract Documents. “Mountable Cement Conc. Traffic Curb” will be used for replacement of the existing traffic circle at the intersection of SE 172nd St and 125th Ave SE. 1-09.14(2)A43 Paint Line (Bid Item A43) – Linear Foot Measure and payment for “Remove Paint Line” shall be shall be per WSDOT Standard Specification 8-22. Removal of existing paint lines shall be incidental. The payment for “Paint Line” shall include all paint lines per the Plans, including the 4-in White Edge Line and the 16-in White Stop Line. 1-09.14(2)B Bid Items Specific to Schedule B – Water Relocations 1-09.14(2)B1 Minor Changes (Bid Item B1) – Estimate (EST) See A1 above. 1-09.14(2)B2 Construction Surveying, Staking, and As-Built Drawings (Bid Item B2) – Lump Sum See A2 above. 1-09 Measurement and Payment City of Renton 1-94 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 1-09.14(2)B3 Site Specific Potholing (Bid Item B3) – Each Measurement for “Site Specific Potholing” will be per each pothole locate completed as defined in Section 1-07.17(3). “Site Specific Potholing” is intended to be additional potholing as directed by the Engineer, which is in addition to potholing included as incidental for utility installation. Only potholes approved by the District inspector or Engineer will be approved for payment. All other potholes will be considered a benefit to the contractor and included in the contract unit price for the utility to be installed. 1-09.14(2)B4 Shoring or Extra Excavation Class B (Bid Item B4) – Square Foot See A7 above. 1-09.14(2)B5 Structure Excavation Class B Incl. Haul (Bid Item B5) – Cubic Yard Measure and payment for “Structure Excavation Class B Incl. Haul” shall be shall be per WSDOT Standard Specification 2-09. 1-09.14(2)B6 Crushed Surfacing Top Course (Bid Item B6) – Ton Measurement and payment for “Crushed Surfacing Top Course” shall be per WSDOT Standard Specification 4-04. Crushed Surfacing shall be used for trench backfill. 1-09.14(2)B7 HMA Cl. 1/2 In. PG 58H-22 (Bid Items B7) – Ton See A16 above. 1-09.14(2)B8 Dewatering (Bid Item B8) – Lump Sum See A37 above. 1-09.14(2)B9 8-inch Ductile Iron Water Main (Bid Items B9) –– Linear Foot Measurement for “8-inch Ductile Iron Water Main ” shall be linear foot of replaced water main installed in conformance with the Contract Documents. The length of water main shall be the number of linear feet of completed water main pipe installation measured along the top of pipe. Ductile iron pipe shall be Class 52. Vertical or horizontal concrete thrust blocks shall be installed at all bends per Soos Creek Water & Sewer standard detail W-1A and W-1B. Payment for “8-inch Ductile Iron Water Main ” shall be full compensation for all labor, material, related work, tools and equipment necessary to satisfactorily complete the Work as defined in WSDOT Standard Specifications Section 7-09 Standard Specifications, these Special Provisions, and as shown on the Plans, and shall include but not be limited to the following: · Locating all existing utilities, water main and services in advance to determine their horizontal and vertical location · Furnishing and placing concrete for vertical and horizontal blocks, dead-man anchor blocks, reinforcing steel, shackle rods, clamp assembly, anchor bolts, turnbuckles, concrete form work, as shown on the plans and per District Standard Plans. 1-09 Measurement and Payment City of Renton 1-95 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions · Furnishing all required water main pipes as shown on the Plans and as specified in the contract special provisions, including, but not limited to, sleeves, detectable warning tape, and all incidentals as required for District personnel to perform the cut- in, vertical adjustment, and final connection of the new water line to the existing water system. Ductile iron spools shall be considered as incidentals to this bid item. · Furnishing and installing polyethylene foam (Dow Plastics Ethafoam 200 or approved equal) where necessary at utility crossings · Replacing, protecting, supporting, and/or maintaining existing utilities, including CDF backfill under existing AC main line. · Furnishing and placing temporary hot mix asphalt patching. Temporary hot mix asphalt includes all hot mix asphalt and/or temporary asphalt that is not part of the trench patch and overlay. · Concrete thrust blocks at all vertical and horizontal bends. Crushed surfacing for pipe bedding materials and for pipe zone backfill is included in other bid items. Ductile iron fittings is included in other bid items. 1-09.14(2)B10 Ductile Iron Fittings (Including Restraints) (Bid Item B10) –– Pounds Measurements “Ductile Iron Fittings (Including Restraints)” shall be measured by the pound and shall include the weights of any accessories such as glands, gaskets and bolts. Weights shall be based on ANSI/AWWA C110/A21.10 fitting weights for equivalent ductile iron fittings. The weights of any restraining systems shall be included as part of this Bid item. All water main pipe and fitting shall be restrained. Payment for “Ductile Iron Fittings (Including Restraints)” shall be per pound for fittings shall constitute complete compensation for all Work, labor, materials, and equipment necessary to furnish and install the required fittings and accessories as called out on the Plans. The unit price shall include but not be limited to any glands, followers, gaskets, bolts, restraint systems, jointing and shackle rods where called out on the Plans and where required. Payment shall be made for permanent fittings only. No payment shall be made for temporary fittings such as temporary blow offs, etc. 1-09.14(2)B11 & B12 1-inch Water Service, ___ (Bid Item B11 & B12) –– Each Measurement for furnishing and installing “1-inch Water Service, ___ ” shall be per each water service connection installed as shown in the Plans and in conformance with the Contract Documents. Each water service shall include all pipe and fittings from the water main to and including the meter box. "Near side” services shall include all services which extend to the edge of the right of way nearest the new water main as shown on the Plans. "Far side” services shall include all services which extend to the edge of the right of way on the far side of the water main as shown on the Plans. Water service replacement shall include all labor, pipe, and materials necessary to install the existing customer-side service line, corporation stop, and grip joint coupling with stiffener insert, and properly align for meter installation per District Standard Plans. 1-09 Measurement and Payment City of Renton 1-96 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Payment for furnishing and installing “1-inch Water Service, ___ ” shall constitute full compensation for all Work, labor, materials, equipment, and tools necessary to furnish, install, test and disinfect a service from the main to the meter box. The unit price Bid shall include but not be limited, service pipe and fittings, service saddle, corporation stops, transition couplings, stiffener inserts, and tracer wire. Also included is meter relocation if designated on Plans or required due to grade changes. The unit Bid price for each service shall also include furnishing and installing any fittings required to connect the new services to the existing private services. Service material to connect the customer side of the water service shall be made with like materials to match the existing customer service line (to avoid electrolysis due to dissimilar materials) and shall be high quality brass, copper, poly, or galvanized piping or other materials approved as equal by the District. The unit Bid price shall also include any surface restoration around meter box that is required to connect the new services to the existing private services. The unit Bid price for these items shall include, but not be limited to, all costs of disposal of debris and excess material including loading and hauling. Payment for this item will be only for water service relocation pre-approved by the District. This item is for conflicts, not for the Contractor’s convenience. If no water service relocation is authorized under this bid item, final payment for this item will be $0 (zero). No price adjustment will be made for variation in actual quantity used for water service relocation, see Special Provision Section 1-04.6. 1-09.14(2)B13 Fire Hydrant Assembly (Bid Item B13) – Each Measurement for “Fire Hydrant Assembly” will be per each for each fire hydrant assembly installed and shall include all pipe, valves, fittings, and blocking from the water main to the hydrant. Removal of existing fire hydrants and associated raised reflective markers shall be included in this Bid item. Concrete pad, if required, shall be included in this Bid item. Payment for “Fire Hydrant Assembly” per each fire hydrant assembly shall constitute full compensation for all Work, labor, materials, and equipment necessary to furnish and install the fire hydrant complete in place from the water main to the hydrant, including but not limited to, excavation, pipe and fittings associated with the assembly, main-line tee, gate valve, hydrant, hydrant riser, shackles, tie rods, concrete blocks, asphaltic felt or filter fabric, washed gravel, backfill with approved backfill material, compaction of backfill, concrete pad, painting, testing and disinfecting, and furnishing and installing a 5-inch Storz adapter, and a blue reflective hydrant marker within the pavement. Removal, disposal, salvage, and backfill of existing fire hydrants and hydrant valve boxes in locations shown on the Plans shall be incidental to this Bid item. The unit price Bid per fire hydrant assembly shall also include, but not be limited to, any grading or rockery construction necessary to provide a 3-foot radius level area around the hydrant. 1-09.14(2)B14 Connection To Existing Water System (Bid Item B14) – Each 1-09 Measurement and Payment City of Renton 1-97 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Connection to existing water system shall be measured per each for permanent connections only. Fittings, valves, and couplings associated with a connection shall be measured separately. The unit price Bid per each permanent connection to the existing water system shall constitute full compensation for all Work, labor, materials, and equipment necessary to make a proper connection or cut-in of the new water mains to the existing water system. This shall include, but shall not be limited to, the following items: · Coordination with the OWNER for shutdown of existing system to make the connections or cut-ins. · Verifying inverts and fittings required for the connection prior to construction. · Replacing existing concrete blocking with temporary bracing on all fittings that · are disturbed by the connection. · Structural excavation class B, including removal of waste material in the excavation limits such as existing pavement · Installing any temporary blocking necessary to make the connection. · Furnishing and installing pipe spools as necessary. · Temporary air relief valves and blow-offs necessary to aid in filling and draining the existing and proposed pipes. · Properly removing and disposing in a legal and safe manner of any existing water main and/or fittings that cannot be abandoned in place. Excavation, dewatering, and backfill necessary for each connection shall be included in the unit price Bid per lineal foot for the pipe. Permanent valves and fittings indicated at existing system connections shall be paid under separate Bid items. 6-inch and 8-inch diameter ductile iron water main spools used at connections, shall meet the material requirements of the Ductile Iron Water Main Bid items, but shall be considered incidental to this Bid item. 1-09.14(2)B15 Removal of Pipe (Bid Item B15) – Linear Foot Measurement for “Removal of Pipe” will be per linear foot of water main removed. Payment for “Removal of Pipe” will be made at the unit price per linear foot, which will be complete compensation for all labor, equipment, materials, tools, excavation around and protection of the adjacent unities, haul and disposal of the removed water main as indicted in the Plan, required for the installation of proposed improvements, or directed by the District. Where the abandoned pipe is not removed, payment shall include plugging with 3,000 psi cement concrete plugs reaching into the pipe at least 12-inches in depth at each end where exposed or accessible. Payment for water main removal will be limited to locations that the water main needs to be removed for proposed improvements. Other sections of water main, including previously abandoned AC water main, shall be abandoned in place with the pipe plugged. 1-09.14(2)C Bid Items Specific to Schedule C – Sewer Relocations 1-09.14(2)C1 Minor Changes (Bid Item C1) – Estimate (EST) 1-09 Measurement and Payment City of Renton 1-98 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions See A1 above. 1-09.14(2)C2 Construction Surveying, Staking, and As-Built Drawings (Bid Item C2) – Lump Sum See A2 above. 1-09.14(2)C3 Site Specific Potholing (Bid Item C3) – Each Measurement for “Site Specific Potholing” will be per each pothole locate completed as defined in Section 1-07.17(3). “Site Specific Potholing” is intended to be additional potholing as directed by the Engineer, which is in addition to potholing included as incidental for utility installation. Only potholes approved by the District inspector or Engineer will be approved for payment. All other potholes will be considered a benefit to the contractor and included in the contract unit price for the utility to be installed. 1-09.14(2)C4 Shoring or Extra Excavation Class B (Bid Item C4) – Square Foot See A7 above. 1-09.14(2)C5 Structure Excavation Class B Incl. Haul (Bid Item C5) – Cubic Yard See B5 above. 1-09.14(2)C6 Crushed Surfacing Top Course (Bid Item C6) – Ton See B6 above. 1-09.14(2)C7 HMA Cl. 1/2 In. PG 58H-22 (Bid Items C7) – Ton See A16 above. 1-09.14(2)C8 12-Inch Ductile Iron Pipe (Bid Items C8) –– Linear Foot Measurement for “12-Inch Ductile Iron Pipe” shall be linear foot of replaced sewer force main installed in conformance with the Contract Documents. The length of ductile iron pipe shall be the number of linear feet of completed sewer main pipe installation measured along the top of pipe. Ductile iron pipe shall be Class 52. Vertical or horizontal concrete thrust blocks shall be installed at all bends needed per Soos Creek Water & Sewer standard detail W-1A and W-1B. Payment for “12-Inch Ductile Iron Pipe” shall be full compensation for all labor, material, related work, tools and equipment necessary to satisfactorily complete the Work as defined in WSDOT Standard Specifications Section 7-17 Standard Specifications, these Special Provisions, and as shown on the Plans, and shall include but not be limited to the following: · Locating all existing utilities, sewer main and services in advance to determine their horizontal and vertical location · Structural excavation class B, including removal of waste material in the excavation limits such as existing pavement · Furnishing and placing concrete for vertical and horizontal blocks, dead-man anchor blocks, reinforcing steel, shackle rods, clamp assembly, anchor bolts, turnbuckles, concrete form work, as shown on the plans and per District Standard Plans. 1-09 Measurement and Payment City of Renton 1-99 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions · Furnishing all required ductile iron pipes as shown on the Plans and as specified in the contract special provisions, including, but not limited to, sleeves, detectable warning tape, and all incidentals as required for District personnel to perform the cut- in, vertical adjustment, and final connection of the new sewer to the existing sewer system. Ductile iron spools shall be considered as incidentals to this bid item. · Furnishing and installing polyethylene foam (Dow Plastics Ethafoam 200 or approved equal) where necessary at utility crossings · Replacing, protecting, and/or maintaining existing utilities · Furnishing and placing temporary hot mix asphalt patching. Temporary hot mix asphalt includes all hot mix asphalt and/or temporary asphalt that is not part of the trench patch and overlay. · Concrete thrust blocks at all vertical and horizontal bends. Crushed surfacing for pipe bedding materials and for pipe zone backfill is included in other bid items. Ductile iron fittings is included in other bid items. 1-09.14(2)C9 Ductile Iron Fittings (Including Restraints) (Bid Item C9) –– Pounds Measurements “Ductile Iron Fittings (Including Restraints)” shall be measured by the pound and shall include the weights of any accessories such as glands, gaskets and bolts. Weights shall be based on ANSI/AWWA C110/A21.10 fitting weights for equivalent ductile iron fittings. The weights of any restraining systems shall be included as part of this Bid item. All ductile iron pipe and fitting shall be restrained. Payment for “Ductile Iron Fittings (Including Restraints)” shall be per pound for fittings shall constitute complete compensation for all Work, labor, materials, and equipment necessary to furnish and install the required fittings and accessories as called out on the Plans. The unit price shall include but not be limited to any glands, followers, gaskets, bolts, restraint systems and thrust blocks, jointing and shackle rods where called out on the Plans and where required. Payment shall be made for permanent fittings only. No payment shall be made for temporary fittings such as temporary blow offs, etc. 1-09.14(2)C10 Dewatering (Bid Item C10) – Lump Sum See A37 above. 1-09.14(2)C11 Connection To Existing Sewer Force Main (Bid Item C11) – Each Measurement for “Connect to Existing Sewer Force Main” will be per each in conformance with Contract Documents. Payment for “Connect to Existing Sewer Force Main” will be made at the unit price per each, which will be complete compensation for all labor, equipment, materials, tools, excavation, pipe, tees, fittings, adapters, flexible couplings, temporary bypass pumping (if needed), and other materials required to connect to the existing sewer force main. The sewer force main can be shut down for up to 2 days during periods with low rainfall with 2-weeks prior approval and coordination from the District. 1-09 Measurement and Payment City of Renton 1-100 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 1-09.14(2)C12 6-Inch PVC SDR 35 (Bid Item C12) –– Linear Foot Measurement for “6-Inch PVC SDR 35” will be per linear foot of replaced side sewer installed in conformance with the Contract Documents. The length of sewer replacement shall be the number of linear feet of completed side sewer pipe installation measured along the invert. The unit price bid per linear foot of “6-Inch PVC SDR 35” shall be full compensation for all labor, material, related work, tools and equipment necessary to satisfactorily complete the Work as defined in WSDOT Standard Specifications Section 7-18 Standard Specifications, these Special Provisions, and as shown on the Plans. The unit price per linear foot of “6-Inch PVC SDR 35” shall also include, but not be limited to, furnishing, hauling, and assembling in place the completed installation including all wyes, tees, test tees, special fittings, cleanouts, and joint materials for the completion of the installation to the required lines and grades. The unit price shall also include cleaning and flushing pipes and existing structures, inspecting pipe, connecting new pipe to existing side sewer and sewer main, replacing, protecting and maintaining utilities, and providing temporary sewer bypass pumping (as necessary). Payment for this item will be only for side sewer replacement pre-approved by the District. This item is for conflicts, not for the Contractor’s convenience. If no side sewer replacement is authorized under this bid item, final payment for this item will be $0 (zero). No price adjustment will be made for variation in actual quantity used for side sewer replacement, see Special Provision Section 1-04.6. 1-09.14(2)C13 Removal of Pipe (Bid Item C13) – Linear Foot Measurement for “Removal of Pipe” will be per linear foot of sewer lateral removed. Payment for “Removal of Pipe” will be made at the unit price per linear foot, which will be complete compensation for all labor, equipment, materials, tools, excavation around and protection of the adjacent unities, temporary bypass pumping (if needed),haul and disposal of the removed sewer lateral, sewer force main pipes and fittings as indicted in the Plan, required for the installation of proposed improvements, or directed by the District. Where the abandoned pipe is not removed, payment shall include plugging with 3,000 psi cement concrete plugs reaching into the pipe at least 12-inches in depth at each end where exposed or accessible. Payment for sewer lateral and sewer force main pipe removal will be limited to locations that the pipes need to be removed for proposed improvements. Other sections of pipes shall be abandoned in place with the pipe plugged. 1-09.14(2)D Bid Items Specific to Schedule D – Roadway Miscellaneous 1-09.14(2)D1 Tree Removal (Bid Item D1) – Each Measurement for “Tree Removal” shall be per each removed tree greater than 12 inches in diameter at breast height. Trees to be removed shall be indicated on the Plans or directed 1-09 Measurement and Payment City of Renton 1-101 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions by the Engineer. All other trees shall be protected during construction. The tree marked for removal at the corner of SE 172nd Street and 125th Avenue SE shall be reviewed by a certified arborist per International Society of Arboriculture. The arborist shall be provided by the Contractor to review the health of the tree after the excavation for the sidewalk has been completed. Recommendations for removal or pruning of this tree shall be approved by the City prior to cutting. Payment for “Tree Removal” will be complete compensation for all labor, materials, tools, equipment, excavation, removal haul and disposal of waste material, including stump and root ball removal and backfill and compaction of resulting trenches or pits, and also includes haul of removed tree or limbs and review by certified arborist, required to complete this item of Work in conformance with the Contract Documents. 1-09.14(2)D2 Contaminated Soil and Groundwater Handling and Management Plan (Bid Item D2) – Lump Sum Measurement for “Contaminated Soil and Groundwater Handling and Management Plan” shall be per the lump sum bid price. The preparation of the Contaminated Soil and Groundwater Handling and Management Plan shall be in accordance with Section 2-05.3(3) of the Special Provisions. The Contaminated Soil and Groundwater Handling and Management Plan shall include a Health and Safety Plan in accordance with Section 2- 05.3(2) of the Special Provisions. Payment for the “Contaminated Soil and Groundwater Handling and Management Plan” preparation, including the Health and Safety Plan shall be full compensation for all labor and materials to develop the plans as well as Contractor labor for its job site monitoring to identify any observations of “suspicious looking” materials and odors, such as an oily sheen on soils or water, and oily or chemical odors. If contaminated soil or water is encountered, testing, handling, and treatment of such contaminated soils or ground water will be paid for under separate bid items. 1-09.14(2)D3 Contaminated Soil Excavation, Haul, and Disposal (Bid Item D3) – Ton Measurement for “Contaminated Soil Excavation, Haul, and Disposal” will be measured in tons based on the tonnage reported on the shipping manifest or bill of lading from the permitted disposal facility. Certified weight tickets will accompany each load, a copy of tickets will be given to the Engineer daily. Wasted materials will not be included in the measurement or payment. Only materials excavated within the Engineer directed areas will be considered for payment. Payment for “Contaminated Soil Excavation, Haul, and Disposal” shall be full compensation for all labor, materials, equipment, excavation, removal, stockpiling, hauling, and disposal of waste materials, etc., required to complete this item of Work in conformance with the Contract Documents. For the purpose of providing a common proposal for all bidders, it shall be assumed the contaminated material is RCRA Subtitle D (non-hazardous waste) petroleum-contaminated soil. Contaminated Soil Excavation includes the excavation of materials characterized as contaminated based on sampling results for the storm sewer, sanitary sewer and water main construction, construction of catch basins, manholes, and vaults in accordance with the plan 1-09 Measurement and Payment City of Renton 1-102 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions drawings. This excavated soil shall be managed in accordance with applicable state and federal regulations outlined in Section 2-05 and in the Contract Documents. Handling and disposal of materials shall adhere to all transportation requirements, receive preapproval from a disposal facility, manifesting, and record keeping, etc. Excavation outside the horizontal limits described in Section 2-09.4 shall be at no additional expense to the City. Payment for this item will be only for the materials approved by the City. If no contaminated soil excavation, haul, and/or disposal is authorized under this bid item, final payment for this item will be $0 (zero). Contaminated Soil Excavation, Haul and Disposal is exempt from Section 1-04.6 and no price adjustment will be made for variation in actual quantity used. 1-09.14(2)D4 Contaminated Water Treatment (Bid Item D4) – Estimate For the purpose of providing a common proposal, and for that purpose only, the Contracting Agency has estimated the cost of “Contaminated Water Treatment” and has entered that amount in the bid proposal to become part of the total bid by the Contractor. A force account estimate for “Contaminated Water Treatment” is included for the purpose of budget tracking. Method of treatment and/or disposal shall be proposed by the Contractor and approved by the Engineer. Contaminated Water Treatment shall mean advanced treatment of any contaminated water as described in Section 2-05.2(11) to be discharged during the project that does not meet storm drain or sanitary sewer system discharge permit limits for dissolved chemical constituents (e.g., petroleum or solvents) after storage, settling, decanting, filtering, or other treatment to meet turbidity or suspended solids content criteria. Meeting turbidity or suspended solids content criteria is the responsibility of the Contractor and is included in the Dewatering bid item. No additional compensation will be made for handling, storage, testing, settling, filtering, or discharging. Advanced treatment systems employed specifically to treat dissolved chemical constituents that will be paid under this bid item include, but are not limited to, Granular Activated Carbon (GAC), Powdered Activated Carbon (PAC), sand filtration, air stripping, microfiltration, and UV oxidation. Payment for “Contaminated Water Treatment” will be per force account in accordance with Section 1-09.6, which payment shall be full compensation for all permitting, labor, materials, equipment, haul, treatment and disposal of waste materials required to complete this item of Work in conformance with Contract Documents. Work for Contaminated Water Treatment shall include advanced treatment of contaminated water for dissolved chemical constituents (e.g., petroleum or solvents) required by King County to discharge to the sanitary sewer or required by Ecology for discharge to the storm drain system. Payment for this item will be only for the Contaminated Water Treatment as defined herein and approved by the City. 1-09.14(2)D5 Adjust Franchise Utility Appurtenances (Bid Items D5) – Each Measurement for Adjust Franchise Utility Appurtenances shall be per each. Payment for Adjust Franchise Utility Appurtenances shall include, but not limited to, all necessary materials, labor, and equipment to satisfactorily complete the adjustment of existing utility lids, water valve boxes and water meters to revised grades as shown in the Contract plans or directed by the Engineer. 1-09.14(2)D6 Cement Conc. Driveway Entrance (Bid Item D6) – Square Yard 1-09 Measurement and Payment City of Renton 1-103 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Measurement and payment for “Cement Conc. Driveway Entrance” shall be per WSDOT Standard Specification 8-06. The Cement Conc. Driveway Entrance shall be installed per the details in the Plans. 1-09.14(2)D7 Chain Link Fence Type 4 (Bid Item D7) – Linear Foot Measurement of length of “Chain Link Fence Type 4” will be the number of linear feet of completed installation measured along the length of the fence. “Chain Link Fence Type 4” placed in excess of the length shown on the plans or designated by the Engineer will not be paid for. Payment for “Chain Link Fence Type 4”, per linear foot shall include all labor, materials, and equipment required to complete this item, including, but not limited to installation, fence, posts, hardware and gate, as shown in the Plans and in conformance with the Contract Documents. The gate shall be installed in the approximate same station and width as the existing gate along the new fence alignment. 1-09.14(2)D8 Wooden Fence (Bid Item D8) – Linear Foot Measurement of length of “Wooden Fence” will be the number of linear feet of completed installation measured along the length of the fence. “Wooden Fence” placed in excess of the length shown on the plans or designated by the Engineer will not be paid for. Payment for “Wooden Fence”, per linear foot shall include all labor, materials, and equipment required to complete this item, including, but not limited to installation fence, posts, hardware and gate, as shown in the Plans and in conformance with the Contract Documents. The gate shall be installed in the approximate same station and width as the existing gate along the new fence alignment. The fence material, height and style shall match the existing fence. 1-09.14(2)D9 Cement Conc. Sidewalk (Bid Items D9) – Square Yard When the Contract contains a pay item for " Cement Conc. Sidewalk," the per Measurement and payment for “Cement Conc. Sidewalk” shall be per WSDOT Standard Specification 8-14. The payment for " Cement Conc. Sidewalk” shall include the concrete sidewalk and landings adjacent to the curb ramps and the concrete bands on either side of the pervious concrete sidewalk. 1-09.14(2)D10 & D11 Cement Conc. Curb Ramp Type ___ (Bid Items D10 & D11) – Each When the Contract contains a pay item for "Cement Conc. Curb Ramp Type ___," the per Measurement and payment for “Cement Conc. Curb Ramp Type ___," shall be per WSDOT Standard Specification 8-14. 1-09.14(2)D12 Relocate Mailbox (Bid Items D12) – Each Measurement shall be per mailbox relocated, regardless of the number of mailbox supports. 1-09 Measurement and Payment City of Renton 1-104 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Payment for “Relocate Mailbox”, per each shall include all labor, materials and equipment necessary to relocate mailbox(es) to new support posts per the details in the plans. This work shall include, but not be limited to relocating the existing mailbox, mailbox post, platform, screws, washers, nails, excavation and backfill for post and all work as necessary to construct the mailbox per the detail shown in the plans. The Contractor shall install temporary mailbox to maintain service and coordinate mailbox locations with the United States Postal Service local postmaster. 1-09.14(2)D13 Permanent Signing (Bid Item D13) – Lump Sum Measurement for “Permanent Signing” shall be lump sum, and based on the percentage of total Work complete, at the time of measurement in conformance with the Contract Documents. Payment for “Permanent Signing” shall be full compensation for all labor, equipment, tools, materials, and all else necessary for and incidental to remove and re-establish street signs in accordance with the plans and specifications. The following table provides an estimate of the quantities for permanent signing. Permanent Signing will not be specifically measured. However, the following approximate quantities have been estimated for the bidders’ convenience. Item Unit Quantity Removed and Replaced Signs EA 6 END OF SECTION 1-09 1-10 Temporary Traffic Control City of Renton 1-105 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 1-10 TEMPORARY TRAFFIC CONTROL 1-10.1 General (******) Revise the first paragraph as follows: Temporary traffic control refers to the control of all types of traffic, including vehicles, bicyclists, and pedestrians (including pedestrians with disabilities). The Contractor shall provide flaggers, signs, and other traffic control devices not otherwise specified as being furnished by the Contracting Agency. The Contractor shall erect and maintain all construction signs, warning signs, detour signs, and other traffic control devices necessary to warn and protect the public at all times from injury or damage as a result of the Contractor’s operations which may occur on highways, roads, streets, sidewalks, or paths. No Work shall be done on or adjacent to any traveled way until all necessary signs and traffic control devices are in place. (******) Supplement this section as follows: When the bid proposal includes an item for “Project Temporary Traffic Control,” the Work required for this item shall be all items described in Section 1-10, including, but not limited to: 1. Furnishing and maintaining barricades, flashers, construction signing, and other channelization devices, unless a pay item is in the bid proposal for any specific device and the Special Provisions specify furnishing, maintaining, and payment in a different manner for that device; 2. Furnishing traffic control labor, equipment, and supervisory personnel for all traffic control labor; 3. Furnishing any necessary vehicle(s) to set up and remove the Class B construction signs and other traffic control devices; 4. Furnishing labor and vehicles for patrolling and maintaining in position all of the construction signs and the traffic control devices, unless a pay item is in the bid proposal to specifically pay for this Work; and 5. Furnishing labor, material, and equipment necessary for cleaning up, removing, and replacing of the construction signs and the traffic control devices destroyed or damaged during the life of the project. 6. Removing existing signs as specified or as directed by the Engineer and delivering to the City Shops, or storing and reinstalling as directed by the Engineer. 7. Preparing a traffic control plan for the project and designating the person responsible for traffic control at the Work site. The traffic control plan shall include descriptions of the traffic control methods and devices to be used by the prime Contractor, and subcontractors, shall be submitted at or before the preconstruction conference, and shall be subject to review and approval of the Engineer. 8. Contacting police, fire, 911, and ambulance services to notify them in advance of any Work that will affect and traveled portion of a roadway. 1-10 Temporary Traffic Control City of Renton 1-106 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 9. Assuring that all traveled portions of roadways are open to traffic during peak traffic periods, 6:30 a.m. to 8:30 a.m., and 3:00 p.m. to 6:00 p.m., or as specified in the special provisions, or as directed by the Engineer. 10. Promptly removing or covering all non-applicable signs during periods when they are not needed. If the Engineer requires the Contractor to furnish additional channelizing devices, pieces of equipment, or services, which could not be usually anticipated by a prudent Contractor for the maintenance and protection of traffic, then a new item or items may be established to pay for such items. Further limitations for consideration of payment for these items are that they are not covered by other pay items in the bid proposal, they are not specified in the Special Provisions as incidental, and the accumulative cost for the use of each individual channelizing device, piece of equipment, or service must exceed $200 in total cost for the duration of their need. In the event of disputes, the Engineer will determine what is usually anticipated by a prudent Contractor. The cost for these items will be by agreed price, price established by the Engineer, or by force account. Additional items required as a result of the Contractor’s modification to the traffic control plan(s) appearing in the Contract shall not be covered by the provisions in this paragraph. If the total cost of all the Work under the Contract increases or decreases by more than 25 percent, an equitable adjustment will be considered for the item “Project Temporary Traffic Control” to address the increase or decrease. Traffic control and maintenance for the safety of the traveling public on this project shall be the sole responsibility of the Contractor and all methods and equipment used will be subject to the approval of the Owner. Traffic control plans, traffic control devices, and their use shall conform to City of Renton standards and the Manual on Uniform Traffic Control Devices (MUTCD). The Contractor shall not proceed with any construction until proper traffic control has been provided to the satisfaction of the Engineer. Any days lost due to improper traffic control will be charged against the Contractor’s allowable contract time and shall not be the cause for a claim for extra days to complete the Work. 1-10.2 Traffic Control Management 1-10.2(1) General (January 3, 2017, WSDOT GSP) Section 1-10.2(1) is supplemented with the following: Only training with WSDOT TCS card and WSDOT training curriculum is recognized in the State of Washington. The Traffic Control Supervisor shall be certified by one of the following: The Northwest Laborers-Employers Training Trust 27055 Ohio Ave. Kingston, WA 98346 (360) 297-3035 1-10 Temporary Traffic Control City of Renton 1-107 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Evergreen Safety Council 12545 135th Ave. NE Kirkland, WA 98034-8709 1-800-521-0778 The American Traffic Safety Services Association 15 Riverside Parkway, Suite 100 Fredericksburg, Virginia 22406-1022 Training Dept. Toll Free (877) 642-4637 Phone: (540) 368-1701 1-10.2(1)B Traffic Control Supervisor (*****) Paragraphs 1 and 2 are revised as follows: A Traffic Control Supervisor (TCS) shall be on the project whenever traffic control labor is required or as authorized by the Engineer. The TCS shall assure that all the duties of the TCS are performed during the duration of the Contract. During non-Work periods, the TCS shall be able to be on the job site within a 45- minute time period after notification by the Engineer. 1-10.3 Traffic Control Labor, Procedures, and Devices (*******) This is supplemented as follows: At the end of each working day, provisions shall be made for the safe passage of traffic and pedestrians during non-working hours. Barricades shall be reflectorized as specified in Part VI of the MUTCD and shall be 3M- diamond grade or equivalent approved by the Engineer. Barricades shall also be equipped with flashers during hours of darkness. Drivers of motor vehicles used in connection with the construction shall obey traffic rules posted for such location in the same manner and under the same restrictions as provided for the drivers of private vehicles. The Contractor shall conduct the work in such a manner as will obstruct and inconvenience vehicular and pedestrian traffic as little as possible. The streets, sidewalks and private driveways shall be kept open by the Contractor except for the brief periods when actual work is being done. The Contractor shall so conduct his operations so as to have under construction no greater length or amount of work than Contractor can prosecute vigorously and Contractor shall not open up sections of the work and leave them in an unfinished condition. See Section 1-07.23(1) for additional driveway closure requirements. The Contractor shall provide traffic cones, barricades, and drums, with warning lights in sufficient number and in good condition as required to protect the work and the public throughout the length of the job. Traffic Safety Drums with flashers in addition to temporary striping will be used to channelize traffic through construction zones. Opposing lanes of traffic will be separated by pylons when clearance for drums is not adequate. All signing and channelization shall be per current MUTCD standards. 1-10 Temporary Traffic Control City of Renton 1-108 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Temporary paint striping, reflective marking tape, and/or retroreflective tubular markers shall be required for each shift of traffic control. The Contractor shall provide temporary striping, reflective marking tape, and/or retroreflective tubular markers as required at the direction of the Engineer. Paint, reflective marking tape, and/or retroreflective tubular markers used for temporary striping shall meet the requirement of Section 8-23 of the Specifications. 1-10.3(1)C Other Traffic Control Labor (*******) This is a new section as follows: The Contractor shall use an Off-Duty Uniformed Police Officer to direct traffic when the traffic control plan requires disruptions or modifications to the operation of traffic at a signalized intersection, or as directed by the Engineer. Off-Duty Uniformed Police Officers are not required if traffic signals are set to all-way stop or are turned off and covered. The Off-Duty Uniformed Police Officer shall be in addition to all other personnel required for traffic control. The Contractor is responsible for the properly scheduling of off-duty officers and shall be responsible for any charges assessed due to insufficient time in canceling off- duty officers, except in situations outside of the Contractor’s control. The Off-Duty Uniformed Police Officer hours, as stated in the proposal are the City’s estimate, without knowledge of the Contractor’s specific method of operation and has been presented for the purpose of providing a common amount for all bidders. Uniformed Police Officers will be scheduled for a minimum of four (4) hours for any shift worked. The Contractor shall use the City of Renton Police Department unless it is unable to respond to a request to assist with the Work. The Off-Duty Uniformed Police Office shall remain in place until the intersection becomes satisfactorily operational as determined by the City of Renton Police Department. The City of Renton Police Department may be contacted at: 1055 S Grady Way Renton, WA 98057 (425) 430-7500 Other resources include: King County Sheriff’s Officers (206) 957-0935 ext. 1 Washington State Patrol Officers (425) 401-7788 1-10.3(2)E Patrol and Maintain Traffic Control Measures (******) Supplement this section as follows: At the end of each working day, provisions shall be made for the safe passage of traffic and pedestrians during non-working hours. Drivers of motor vehicles used in connection with the construction shall obey traffic rules posted for such location in the same manner and under the same restrictions as provided for the drivers of private vehicles. 1-10 Temporary Traffic Control City of Renton 1-109 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions The Contractor shall conduct the work in such a manner as will obstruct and inconvenience vehicular and pedestrian traffic as little as possible. The streets, sidewalks and private driveways shall be kept open by the Contractor except for the brief periods when actual work is being done. The Contractor shall provide a pedestrian traffic control plan for sidewalk closures. The maximum closure time between demolition and completion for any curb ramp or street corner shall be 7 calendar days. Pedestrian routes shall be restored to clean and hazard-free surface meeting Americans with Disability Act (ADA) standards to the maximum extent feasible before they are re-opened to the public. Pedestrian and vehicular access shall be maintained throughout the work to the greatest extent practical. Minimum travel lane width is 9.5-feet. Traffic control zones shall be limited to one block per street and one intersection per street at a time, unless otherwise approved by the Engineer and subject to the constraints in the Contract Documents. Traffic control shall not be permitted on adjacent north-south streets simultaneously unless approved by the engineer. A maximum of 400-feet of trench, including that which is steel plated, may be open on a street at any time. The Contractor shall clean the work zone and reopen the roadway at the end of the workday unless otherwise permitted in the Contract Documents or approved by the Engineer. All open trenches shall be protected with steel plates overnight. Steel plates used for trench protection shall be secured to the roadway. All trenches shall be temporary patched or steel plated and in a clean and orderly condition from the time the contractor stops work until work resumes. Any traffic detours shall be maintained in accordance with the approved traffic control plan. The Contractor shall so conduct his operations so as to have under construction no greater length or amount of work than Contractor can prosecute vigorously and Contractor shall not open up sections of the work and leave them in an unfinished condition. See Section 1-07.23(1) for additional driveway closure requirements. Traffic control affecting bus routes shall be subject to the requirements of King County Metro and Sound Transit. Minimum 12-ft travel lanes shall be provided on bus routes. Temporary bus stop closures or relocations will be necessary and are limited to a single stop in each direction at a time. Access to the Renton Transit Center shall always be maintained. Bus route detours, if required, shall be coordinated with King County Metro and Sound Transit. Access to schools, businesses and residences shall always be maintained. Property owners and tenants shall be notified by the Contractor of traffic control restrictions in accordance with Section 1-07.23(1). Mail delivery service shall not be impeded. Street parking may be closed in traffic control zones as necessary to provide detours. City land including right-of-way, open spaces, parks, easements, and parking areas shall not be used for a storage or staging area unless explicit written permission is granted by the engineer, a permit has been granted as necessary, and approved in the traffic control plan. 1-10 Temporary Traffic Control City of Renton 1-110 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 1-10.3(3)A Construction Signs (******) Supplemented paragraph 4 in this section as follows: No separate pay item will be provided in the bid proposal for Class A or Class B construction signs. All costs for the Work to provide Class A or Class B construction signs shall be included in the unit contract price for the various other items of the Work in the bid proposal. The Contractor shall fabricate, install, and maintain project signs for “Businesses Open During Construction” (minimum one sign per direction of traffic) and “Business Access” to alert and guide the public to businesses in the project area (minimum one sign per affected business) where traffic control is in place within a commercial area. 1-10.3(3)C Portable Changeable Message Sign (******) Supplemented this section as follows: When feasible, position PCMS or mPCMSs to provide at least 2 feet of lateral clearance from the nearest open lane and transversely delineate with at least 3 channelization devices. For truck-mounted PCMSs, provide 2 feet of lateral clearance when feasible but transverse delineation is not required. The Contractor shall remove these devices from the work zone clear zone when not in use unless protected by barrier or guardrail. 1-10.3(3)D Barricades (******) Supplement this section as follows: Barricades shall be 3M-diamond grade or equivalent approved by the Engineer. 1-10.3(4) Traffic Control Constraints (******) This is a new section as follows: Pedestrian and vehicular access shall be maintained throughout the work to the greatest extent practical. Minimum travel lane width is 9.5-feet. Traffic control zones shall be limited to one block per street and one intersection per street at a time, unless otherwise approved by the Engineer and subject to the constraints in the Contract Documents. Traffic control shall not be permitted on adjacent north-south streets simultaneously unless approved by the engineer. A maximum of 400-feet of trench, including that which is steel plated, may be open on a street at any time. The Contractor shall provide a pedestrian traffic control plan for sidewalk closures. The maximum closure time between demolition and completion for any curb ramp or street corner shall be 7 calendar days. Pedestrian routes shall be restored to clean and hazard- free surface meeting ADA standards to the maximum extent feasible before they are re- opened to the public. The Contractor shall clean the work zone and reopen the roadway at the end of the work day unless otherwise permitted in the Contract Documents or approved by the Engineer. All 1-10 Temporary Traffic Control City of Renton 1-111 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions open trenches shall be protected with steel plates overnight. Steel plates used for trench protection shall be secured to the roadway. All trenches shall be temporary patched or steel plated and in a clean and orderly condition from the time the contractor stops work until work resumes. Any traffic detours shall be maintained in accordance with the approved traffic control plan. The Contractor shall provide their own storage and staging area for the duration of the project. The City does not have land available in the vicinity of the project and will not allow the right-of-way to be used for storage. Access to schools, businesses and residences shall be maintained at all times. Property owners and tenants shall be notified by the Contractor of traffic control restrictions in accordance with Section 1-07.23(1). “Business Open During Construction” signage is required where traffic control is in place in a commercial area. Mail delivery service shall not be impeded. Street parking may be closed in traffic control zones as necessary to provide detours. Traffic control affecting bus routes shall be subject to the requirements of King County Metro and Sound Transit. Minimum 12-ft travel lanes shall be provided on bus routes. Temporary bus stop closures or relocations will be necessary and are limited to a single stop in each direction at a time. Access to the Renton Transit Center shall be maintained at all times. Bus route detours, if required, shall be coordinated with King County Metro and Sound Transit. 1-10.4 Measurement (******) Section 1-10.4 is replaced with:: No specific unit of measurement will apply to the lump sum item of “Project Temporary Traffic Control”. No adjustment in the lump sum bid amount will be made for overtime Work or for use of relief flaggers. 1-10.5 Payment (******) Section 1-10.5 is replaced with: Payment for all labor, materials, and equipment described in Section 1-10 will be made in accordance with Section 1-04.1, for the following bid items when included in the proposal: “Project Temporary Traffic Control,” Lump Sum. END OF SECTION 1-10 1-11 Renton Surveying Standards City of Renton 1-112 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 1-11 RENTON SURVEYING STANDARDS (******) This is a new section as follows: 1-11.1 Description 1-11.1(1) Responsibility for Surveys All surveys and survey reports shall be prepared under the direct supervision of a person registered to practice land surveying under the provisions of Chapter 18.43 RCW. All surveys and survey reports shall be prepared in accordance with the requirements established by the Board of Registration for Professional Engineers and Land Surveyors under the provisions of Chapter 18.43 RCW. 1-11.1(2) Survey Datum and Precision The horizontal component of all surveys shall have as its coordinate base: The North American Datum of 1983/91. All horizontal control for projects must be referenced to or in conjunction with a minimum of two of the City of Renton's Survey Control Network monuments. The source of the coordinate values used will be shown on the survey drawing per RCW 58.09.070. The horizontal component of all surveys shall meet or exceed the closure requirements of WAC 332-130-060. The control base lines for all surveys shall meet or exceed the requirements for a Class A survey revealed in Table 2 of the Minimum Standard Detail Requirements for ALTA/ACSM Land Title Surveys jointly established and adopted by ALTA and ACSM in 1992 or comparable classification in future editions of said document. The angular and linear closure and precision ratio of traverses used for survey control shall be revealed on the face of the survey drawing, as shall the method of adjustment. The horizontal component of the control system for surveys using global positioning system methodology shall exhibit at least 1 part in 50,000 precision in line length dependent error analysis at a 95 percent confidence level and performed pursuant to Federal Geodetic Control Subcommittee Standards for GPS control surveys as defined in Geometric Geodetic Accuracy Standards & Specifications for Using GPS Relative Positioning Techniques dated August 1, 1989, or comparable classification in future editions of said document. The vertical component of all surveys shall be based on NAVD 1988, the North American Vertical Datum of 1988, and tied to at least one of the City of Renton Survey Control Network benchmarks. If there are two such benchmarks within 3000 feet of the project site a tie to both shall be made. The benchmark(s) used will be shown on the drawing. If a City of Renton benchmark does not exist within 3000 feet of a project, one must be set on or near the project in a permanent manner that will remain intact throughout the duration of the project. Source of elevations (benchmark) will be shown on the drawing, as well as a description of any benchmarks established. 1-11.1(3) Subdivision Information Those surveys dependent on section subdivision shall reveal the controlling monuments used and the subdivision of the applicable quarter section. 1-11 Renton Surveying Standards City of Renton 1-113 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Those surveys dependent on retracement of a plat or short plat shall reveal the controlling monuments, measurements, and methodology used in that retracement. 1-11.1(4) Field Notes Field notes shall be kept in conventional format in a standard bound field book with waterproof pages. In cases where an electronic data collector is used field notes must also be kept with a sketch and a record of control and base line traverses describing station occupations and what measurements were made at each point. Every point located or set shall be identified by a number and a description. Point numbers shall be unique within a complete job. The preferred method of point numbering is field notebook, page and point set on that page. Example: The first point set or found on page 16 of field book 348 would be identified as Point No. 348.16.01, the second point would be 348.16.02, etc. Upon completion of a City of Renton project, either the field notebook(s) provided by the City or the original field notebook(s) used by the Surveyor will be given to the City. For all other Work, Surveyors will provide a copy of the notes to the City upon request. In those cases where an electronic data collector is used, a hard copy print out in ASCII text format will accompany the field notes. 1-11.1(5) Corners and Monuments Corner: A point on a land boundary, at the juncture of two or more boundary lines. A monument is usually set at such points to physically reference a corner's location on the ground. Monument: Any physical object or structure of record, which marks or accurately references: · A corner or other survey point established by or under the supervision of an individual per Section 1-11.1(1) and any corner or monument established by the General Land Office and its successor the Bureau of Land Management including section subdivision corners down to and including one-sixteenth corners; and · Any permanently monumented boundary, right-of-way alignment, or horizontal and vertical control points established by any governmental agency or private surveyor including street intersections but excluding dependent interior lot corners. 1-11.1(6) Control or Base Line Survey Control or Base Line Surveys shall be established for all construction projects that will create permanent structures such as roads, sidewalks, bridges, utility lines or appurtenances, signal or light poles, or any non-single family building. Control or Base Line Surveys shall consist of such number of permanent monuments as are required such that every structure may be observed for staking or "as-builting" while occupying one such monument and sighting another such monument. A minimum of two of these permanent monuments shall be existing monuments, recognized and on record with the City of Renton. The Control or Base Line Survey shall occupy each monument in turn, and shall satisfy all applicable requirements of Section 1-11.1 herein. The drawing depicting the survey shall be neat, legible, and drawn to an appropriate scale. North orientation should be clearly presented and the scale shown graphically as well as noted. The drawing must be of such quality that a reduction thereof to one-half original scale remains legible. 1-11 Renton Surveying Standards City of Renton 1-114 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions If recording of the survey with the King County Recorder is required, it will be prepared on 18 inch by 24 inch mylar and will comply with all provisions of Chapter 58.09 RCW. A photographic mylar of the drawing will be submitted to the City of Renton and, upon their review and acceptance per the specific requirements of the project, the original will be recorded with the King County Recorder. If recording is not required, the survey drawing shall be prepared on 22 inch by 34 inch mylar, and the original or a photographic mylar thereof will be submitted to the City of Renton. The survey drawings shall meet or exceed the requirements of WAC 332-130-050 and shall conform to the City of Renton's Drafting Standards. American Public Works Association symbols shall be used whenever possible, and a legend shall identify all symbols used if each point marked by a symbol is not described at each use. An electronic listing of all principal points shown on the drawing shall be submitted with each drawing. The listing should include the point number designation (corresponding with that in the field notes), a brief description of the point, and northing, easting, and elevation (if applicable) values, all in ASCII format, on IBM PC compatible media. 1-11.1(7) Precision Levels Vertical Surveys for the establishment of benchmarks shall satisfy all applicable requirements of Sections 1-05 and 1-11.1. Vertical surveys for the establishment of benchmarks shall meet or exceed the standards, Specifications and procedures of third order elevation accuracy established by the Federal Geodetic Control Committee. Benchmarks must possess both permanence and vertical stability. Descriptions of benchmarks must be complete to insure both recoverability and positive identification on recovery. 1-11.1(8) Radial and Station-Offset Topography Topographic surveys shall satisfy all applicable requirements of Section 1-11.1 herein. All points occupied or back sighted in developing radial topography or establishing baselines for station-offset topography shall meet the requirements of Section 1-11.1 herein. The drawing and electronic listing requirements set forth in Section 1-11.1 herein shall be observed for all topographic surveys. 1-11.1(9) Radial Topography Elevations for the points occupied or back sighted in a radial topographic survey shall be determined either by, 1) spirit leveling with misclosure not to exceed 0.1 feet or Federal Geodetic Control Committee third order elevation accuracy Specifications, OR 2) trigonometric leveling with elevation differences determined in at least two directions for each point and with misclosure of the circuit not to exceed 0.1 feet. 1-11 Renton Surveying Standards City of Renton 1-115 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 1-11.1(10) Station-Offset Topography Elevations of the baseline and topographic points shall be determined by spirit leveling and shall satisfy Federal Geodetic Control Committee Specifications as to the turn points and shall not exceed 0.1 foot's error as to side shots. 1-11.1(11) As-Built Survey All improvements required to be "as-built" (post construction survey) per City of Renton Codes, TITLE 4 Building Regulations and TITLE 9 Public Ways and Property, must be located both horizontally and vertically by a Radial survey or by a Station offset survey. The "as-built" survey must be based on the same base line or control survey used for the construction staking survey for the improvements being "as-built". The "as-built" survey for all subsurface improvements should occur prior to backfilling. Close cooperation between the installing Contractor and the "as-builting" surveyor is therefore required. All "as-built" surveys shall satisfy the requirements of Section 1-11.1(1) herein, and shall be based upon control or base line surveys made in conformance with these Specifications. The field notes for "as-built" shall meet the requirements of Section 1-11.1(4) herein, and submitted with stamped and signed "as-built" drawings which includes a statement certifying the accuracy of the "as-built". The drawing and electronic listing requirements set forth in Section 1-11.1(6) herein shall be observed for all "as-built" surveys. 1-11.1(12) Monument Setting and Referencing All property or lot corners, as defined in 1-11.1(5), established or reestablished on a plat or other recorded survey shall be referenced by a permanent marker at the corner point per 1-11.2(1). In situations where such markers are impractical or in danger of being destroyed, e.g., the front corners of lots, a witness marker shall be set. In most cases, this will be the extension of the lot line to a tack in lead in the curb. The relationship between the witness monuments and their respective corners shall be shown or described on the face of the plat or survey of record, e.g., “Tacks in lead on the extension of the lot side lines have been set in the curbs on the extension of said line with the curb." In all other cases the corner shall meet the requirements of Section 1-11.2(1) herein. All non-corner monuments, as defined in 1-11.1(5), shall meet the requirements of Section 1-11.2(2) herein. If the monument falls within a paved portion of a right-of-way or other area, the monument shall be set below the ground surface and contained within a lidded case kept separate from the monument and flush with the pavement surface, per Section 1-11.2(3). In the case of right-of-way centerline monuments all points of curvature (PC), points of tangency (PT), street intersections, center points of cul-de-sacs shall be set. If the point of intersection (PI) for the tangents of a curve fall within the paved portion of the right-of-way, a monument can be set at the PI instead of the PC and PT of the curve. For all non-corner monuments set while under contract to the City of Renton or as part of a City of Renton approved subdivision of property, a City of Renton Monument Card (furnished by the city) identifying the monument; point of intersection (PI), point of tangency (PT), point of curvature (PC), one-sixteenth corner, Plat monument, street intersection, etc., 1-11 Renton Surveying Standards City of Renton 1-116 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions complete with a description of the monument, a minimum of two reference points and NAD 83/91 coordinates, and NAVD 88 elevation shall be filled out and filed with the city. 1-11.2 Materials 1-11.2(1) Property/Lot Corners Corners per 1-11.1(5) shall be marked in a permanent manner such as 1/2-inch diameter rebar 24 inches in length, durable metal plugs or caps, tack in lead, etc., and permanently marked or tagged with the surveyor's identification number. The specific nature of the marker used can be determined by the surveyor at the time of installation. 1-11.2(2) Monuments Monuments per 1-11.1(5) shall meet the requirements as set forth in City of Renton Standard Plans page H031 and permanently marked or tagged with the surveyor's identification number. 1-11.2(3) Monument Case and Cover Materials shall meet the requirements of Section 9-22 and City of Renton Standard Plans page H031. END OF SECTION 1-11 END DIVISION 1 DIVISION 2 EARTHWORK City of Renton 1-117 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 2-01 CLEARING, GRUBBING, AND ROADSIDE CLEANUP 2-01.2 Disposal of Usable Material and Debris (******) Section 2-01.2 is supplemented as follows: The Contractor shall dispose of all debris by Disposal Method No. 2 – Waste Site. 2-01.3 Construction Requirements 2-01.3(1) Clearing (******) This Section is supplemented with the following: Clearing and grubbing shall be restricted to the minimum amount needed to construct roadway improvements and shall not exceed the limits established on the Plans, staked by the Contractor, and approved by the Engineer. Do not remove trees, shrubs, and other vegetation indicated to remain. Any trees, shrubs, and other vegetation indicated to remain, which are damaged, shall be replaced in kind at the Contractor’s expense. Existing landscaping and vegetation outside the limits shall be protected from damage by the Contractor’s operations. All landscaping damaged by the contractor’s operations outside the limits shall be replaced in coordination with the property owner at the Contractor’s expense. Fill depressions caused by clearing and grubbing operations with satisfactory soil material, unless further excavation or earthwork is indicated. Place fill material in horizontal layers not exceeding eight (8) inches in loose depth, and compact each layer to a density equal to adjacent original ground. END OF SECTION 2-01 2-02 Removal of Structures and Obstructions City of Renton 1-118 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 2-02 REMOVAL OF STRUCTURES AND OBSTRUCTIONS 2-02.2 Removal of Unforeseen Obstructions and Debris (******) This is a new section as follows: Known obstructions and debris are shown in the plans but other obstructions may not be shown. The removal and replacement of identified and minor obstructions, whether identified or not, shall be anticipated and accomplished. Minor obstructions consist of those ordinarily encountered in the due course of excavation and able to be excavated with appropriate and typical excavation equipment, including, but not limited to, rocks, boulders, logs, roots, stumps, concrete, etc. Major obstructions encountered that are not shown in the Contract Drawings and could not have been foreseen by visual inspection of the site prior to bidding shall immediately be brought to the attention of the Engineer in writing. Major obstructions are those which require special equipment, personnel, or an inordinate amount of time to remove, such as reinforced concrete, structural metal, concrete encased pipes, vehicles, etc. The Engineer will decide if an obstruction is major and unforeseen and will make a determination for proceeding with the work. If the Engineer finds that the obstruction adversely affects the Contractor’s costs or schedule for completion, a proper adjustment to the Contract will be made in accordance with Section 1-04.4 as amended in the Special Provisions. 2-02.3 Construction Requirements 2-02.3(3) Removal of Pavement, Sidewalks, Curbs, and Gutters (******) Section 2-02.3(3) is supplemented as follows: Existing pavement shall be sawcut and removed at the locations shown on the Plans or as approved by the Engineer. Removal shall be accomplished by making a neat longitudinal vertical cut along the boundaries of the area to be removed. Care shall be taken during removal so as not to damage any of the existing pavement to remain in place. Remaining pavement damaged due to the Contractor’s operations shall be replaced by the Contractor, to the satisfaction of the Engineer, at the Contractor’s expense. When a construction joint is near removal limits, the joint may be used as the removal limit if approved by the Engineer. When an area where pavement, sidewalk, or driveway has been removed is to be opened to traffic before pavement patching has been completed, temporary asphalt concrete patching shall be required. Temporary patching shall be placed as specified in Section 5-06. 2-02.3(3)A Sawcutting (******) This is a new section as follows: Sawcutting may be necessary to remove sections of asphaltic or concrete pavement, sidewalk, driveway, or curb and gutter. The Contractor shall make a neat vertical sawcut at locations marked in the field, or as directed by the Engineer. All sawcuts shall be continuous full-depth, and shall be made with saws specifically equipped for the purpose. Sawcutting of sidewalk, driveway Skip cutting or jack hampering will be not allowed unless otherwise approved by the Engineer. Prior to removal of pavement, sidewalk, or curb and gutter, the 2-02 Removal of Structures and Obstructions City of Renton 1-119 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Contractor shall walk the site(s) with the Engineer and delineate, with paint, the removal limits. No materials shall be removed without approval of the removal limits by the Engineer. The Contractor shall take care to avoid damaging adjacent pavement, sidewalk, driveway, curb and gutter to remain. Any damage as a result of the Contractor’s operations, shall be repaired to the satisfaction of the Engineer at no additional cost to the Contracting Agency. The Contractor shall be responsible for ensuring that special precautions are taken so the work is conducted in accordance with Washington State Department of Ecology guidelines. These guidelines prohibit concrete (asphalt or cement) and concrete by-products from being discharged into any storm drain system or surface water body. Cutting operations will increase the pH of water, therefore filtering is not acceptable. Thoroughly clean sawcuts areas by collecting and disposing of all debris, contaminants, and wastewater in accordance with Department of Ecology best management practices and the project’s Storm Water Pollution Prevention Plan. 2-02.5 Payment (******) Supplement this section as follows: "Sawcutting ", per linear foot. See Sections 1-09.14(2), for summary of measurement and pavement. END OF SECTION 2-02 2-03 Roadway Excavation and Embankment City of Renton 1-120 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 2-03 ROADWAY EXCAVATION AND EMBANKMENT 2-03.3 Construction Requirements (******) Supplement this section as follows: Roadway excavation shall include the removal of all materials excavated from within the limits shown on the Plans. Suitable excavated material shall be used for embankments, while surplus excavated material or unsuitable material shall be disposed of by the Contractor. Earthwork quantities and changes will be computed, either manually or by means of electronic data processing equipment, by use of the average end area method. Any changes to the proposed Work as directed by the Engineer that would alter these quantities shall be calculated by the Engineer and submitted to the Contractor for their review and verification. Any excavation or embankment beyond the limits indicated in the Plans, unless ordered by the Engineer, shall not be paid for. All Work and material required to return these areas to their original conditions, as directed by the Engineer, shall be provided by the Contractor at his sole expense. All areas shall be excavated, filled, and/or backfilled as necessary to comply with the grades shown on the Plans. In filled and backfilled areas, fine grading shall begin during the placement and the compaction of the final layer. In cut sections, fine grading shall begin within the final six (6) inches of cut. Final grading shall produce a surface, which is smooth and even, without abrupt changes in grade. Excavation for curbs and gutters shall be accomplished by cutting accurately to the cross sections, grades and elevations shown. Care shall be taken not to excavate below the specified grades. The Contractor shall maintain all excavations free from detrimental quantities of leaves, brush, sticks, trash, and other debris until final acceptance of the Work. Following removal of topsoil or excavation to grade, and before placement of fills or base course, the subgrade under the roadway shall be proof-rolled to identify any soft or loose areas which may warrant additional compaction or excavation and replacement. The Contractor shall provide temporary drainage or protection to keep the subgrade free from standing water. Acceptable excavated native soils shall be used for fill in the area requiring fills. Care shall be taken to place excavated material at the optimum moisture content to achieve the specified compaction. Any native material used for fill shall be free of organics and debris, and have a maximum particle size of 6 inches. It shall be the responsibility of the Contractor to prevent the native materials from becoming saturated with water. The measures may include sloping to drain, compacting the native materials, and diverting runoff away from the materials. If the Contractor fails to take such preventative measures, any costs or delay related to drying the materials shall be at his own expense. 2-03 Roadway Excavation and Embankment City of Renton 1-121 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions If the native materials become saturated, it shall be the responsibility of the Contractor to dry the materials, to the optimum moisture content. If sufficient acceptable native soils are not available to complete construction of the roadway embankment, Select Borrow shall be used. If subgrade trimmer is not required on the project, all portions of Section 2-03 shall apply as though a subgrade trimmer were specified. If sufficient acceptable native soils, as determined by the Engineer, are not available to complete construction of the roadway embankment, Select Borrow meeting the requirements of Section 9-03.14 of the Standard Specifications, shall be used. END OF SECTION 2-03 2-05 Contaminated Soil and Water City of Renton 1-122 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 2-04 HAUL 2-04.5 Payment (******) Supplement this section as follows: All costs for the hauling of material to, from, or on the job site shall be considered incidental to and included in the unit price of other units of Work. END OF SECTION 2-04 2-05 Contaminated Soil and Water City of Renton 1-123 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 2-05 CONTAMINATED SOIL AND WATER (******) This is a new section as follows: 2-05.1 Description This work consists of identifying, notifying, handling, transporting, and disposing of contaminated soil and water generated in connection with the project. 2-05.2 Construction Requirements It shall be the Contractor’s responsibility to properly handle and dispose of contaminated soils and water in accordance with all permits, regulations, and laws wherever they are encountered during the course of the work. The Contractor is responsible for all work, records, and reports required to perform the work described in this section. Prior to the start of work, the Contractor shall provide a written Contaminated Soil and Water Handling and Management Plan presenting a detailed description of the Contractor's proposed method for containment, loading and hauling of contaminated media that is in accordance with these Contract Documents. The Contractor shall not undertake direct communication with regulatory agencies regarding waste designation and shall route all such communications through the City. 2-05.2(1) Health and Safety The Contractor shall review the available environmental data for the site and inspect the site to identify potential hazards for workers. The Contractor shall comply with all safety and health provisions of the Washington Industrial Safety and Health Act of 1973 (WISHA), as amended, including WISHA Safety and Health Core Rules (296-800 WAC), Respirators (296-842 WAC), and Hazardous Waste Operations (296-843 WAC); all other applicable Federal, State, county, and local laws, ordinances and codes; the requirements set forth in Section 1-07 and herein, and any regulations that may be specified in other parts of this Contract. In case of conflict or overlap, the provisions more protective of employee safety and health shall apply. Failure to become thoroughly familiarized with these safety and health provisions shall not relieve the Contractor of responsibility for compliance with the obligations and requirements set forth therein. The Contractor shall be responsible for the health and safety of Contractor’s employees, its Subcontractors, suppliers, agents, Inspectors, visitors, the general public and any others providing labor, goods, or other services on the project site. The Contractor shall have instituted a corporate safety and health program and have (when required, based on-site conditions) workers who are trained in hazardous waste site safety and health issues in accordance with 29 CFR 1910.120 of the Federal Register and Chapter 296-843 WAC, and personal protective equipment for employees as needed. 2-05 Contaminated Soil and Water City of Renton 1-124 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions The Contractor shall communicate daily with the Engineer regarding health and safety issues for the Engineer’s safe conduct of the Engineer’s duties, but such communication shall not imply any duty or responsibility on the part of the Engineer with regard to health and safety of Contractor’s employees, its Subcontractors, suppliers, the general public, or others. The Engineer’s responsibility and duty with regard to health and safety shall be limited to the Engineer’s employees. The Contractor shall have responsibility and duty to the Engineer to communicate health and safety issues accurately and in a timely manner to allow the Engineer to take appropriate actions to protect the Engineer’s employees. The Contractor shall be responsible for emergency response planning and notification, and for actual response to any and all emergencies that may occur during the course of the Work, including emergencies occurring when Contractor is not present at the site. The Contractor shall be responsible for stability of excavations and embankments caused by the Contractor’s Work. Contractor shall designate one competent person as defined in Chapter 296-155 WAC, Part N, to inspect daily and throughout the shift to document excavation safety conditions and ensure excavation safety prior to any personnel entering an excavation. The Contractor shall designate, identify, and cordon off, where necessary, contaminated excavations and other “exclusion zone” areas at the site as described in the Contractor’s HASP. Only designated, properly trained personnel shall be allowed in any exclusion zones. Decontamination activities shall take place in “designated” contamination reduction zones.” 2-05.2(2) Health and Safety Plan and Accident Prevention Program The Contractor shall develop, implement, maintain, supervise, and be responsible for a Health and Safety Plan (HASP) and Accident Prevention Program (APP). The HASP shall be prepared by an American Board of Industrial Hygiene Certified Industrial Hygienist (CIH). The HASP and APP shall be developed in accordance with the requirements of the current health and safety guidelines established by the Washington Administrative Code (WAC), the U.S. Environmental Protection Agency (EPA) Office of Emergency and Remedial Response — Hazardous Response Support Division, the Occupational Safety and Health Administration (OSHA), and the Washington Industrial Safety and Health Act (WISHA). Where these are in conflict, the most stringent requirement shall be followed. The Contractor shall provide a copy of the HASP and APP to the Engineer a minimum of 10 days following the Notice of Award. Engineer shall review the HASP and APP and reserve the right to comment on it, but Engineer shall not be responsible for approval of the Contractor’s HASP or APP. 2-05.2(3) Contaminated Soil and Groundwater Handling and Management Plan The Contractor shall develop and submit a Contaminated Soil and Groundwater Handling and Management Plan a maximum of ten days following the Notice of Award. The Plan shall include, at a minimum, the following elements: 1. Stockpile construction and maintenance; and 2. Methods of contaminated soil and water treatment or disposal, including groundwater from dewatering operations per Section 2-15 of these Provisions; and 3. Instructing workers in observing and reporting questionable materials and odors, such as refuse, creosote-treated wood, oily sheen or color on soils or water, and oily or chemical odors; and 2-05 Contaminated Soil and Water City of Renton 1-125 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 4. Identify the individual responsible for implementing the Plan and his/her qualifications; and 5. Describing the procedures and equipment to monitor compliance; and 6. Developing an emergency medical care and treatment plan consistent with the HASP; and 7. The name, address, and State and Federal identification number of contaminated soil and ground water treatment and/or disposal facilities used by the Contractor. 8. Disposal Facility - Name, location, and State and Federal identification number (if available) of licensed off- site facility(s) for treatment and/or disposal of contaminated soils. 2-05.2(4) Jobsite Monitoring The Contractor shall be responsible for the identification of areas of soil and/or ground water contamination through observations and a continuous monitoring program designed to detect contaminated soil and ground water. The Contractor shall instruct workers to report any observations of “suspicious looking” materials and odors, such as an oily sheen on soils or water, and oily or chemical odors. In the event the Contractor’s monitoring program detects the presence of a suspicious material not indicated in the Plans, the Contractor shall immediately notify the Engineer. Contractor shall test suspected contaminated soils or ground water within two (2) working days (excluding weekends) of notification, or as otherwise coordinated with Engineer. The Contractor shall provide analytical results and direction on soil disposition to the Engineer within three (3) working days (excluding weekends) of sample collection and submittal to the analytical laboratory. Following completion of testing to determine the nature of the material, the Engineer will decide how the material shall be handled and disposed. Options include reuse on-site, off- site disposal as unsuitable, or off-site disposal/treatment as contaminated soil. Monitoring, notification, and the time delays specified herein are included in the Base Bid, no additional compensation will be made for resulting Work delays, stockpiling, moving soil after it has been excavated and stockpiled, or ancillary costs. Testing will be per each paid under the “Soil Sampling and Testing” Bid item, per each.Testing, as requested by the Engineer, will be paid under the “Minor Changes” bid item. 2-05.2(5) Test Sampling The Contractor shall sample soils at locations of suspected or apparent contamination as selected by the Engineer. Contractor shall notify Engineer of potential contamination when encountered in the due course of the work. Sampling locations will then be determined by Engineer. The Contractor shall send samples to an analytical laboratory for chemical analysis. The analytical results from the soil samples will be used to determine the levels of soil contamination and establish soil disposal requirements. Each test shall include testing for petroleum hydrocarbons by methods NWTPH-G/BTEX and NWTPH-Dx, RCRA metals, and TCLP metals follow-up as needed, and any other tests required by the disposal facility. 2-05 Contaminated Soil and Water City of Renton 1-126 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 2-05.2(6) Storage Soils that are to be disposed of off-site should be loaded directly to trucks when possible. All excavated contaminated soils shall be stockpiled as follows if not loaded immediately for off- site transport and disposal. Materials suspected of having contamination must be stockpiled separately from materials where there are no indications of contamination. The Contractor shall establish separate stockpiles as necessary for management of excavated materials prior to transport of excavated materials for on-site use as backfill or off-site disposal. The Contractor shall be responsible for constructing all stockpiles, and for inspection, maintenance, modification, and repair of stockpiles. The Contractor shall place soil on 10-mil (minimum) polyethylene sheeting (e.g., Visqueen), with polyethylene -covered earthen or straw bale berms as needed to prevent any infiltration or runoff of water. The Contractor shall cover soil with 6-mil (minimum thickness) polyethylene and sandbags or other suitable hold-downs (soil or tires are not acceptable). The Contractor shall maintain stockpiles, berms, and liners to prevent rain or surface water from contacting the soil, as well as preventing the escape of volatile contaminants, dust, or water from the stockpiled soil. Stockpiles shall remain covered at all times unless material is being added or removed. Free liquids within the stockpile shall be controlled by the Contractor so that they are not released to the environment. The maximum number of days stockpiles can remain is 15, otherwise stockpiles shall be hauled and disposed of at a lawful site in accordance with Section 2- OS.3(8). Alternatively, the Contractor may use covered steel rolloff boxes for soil storage. Rolloff boxes shall not allow any infiltration of precipitation, or water runoff from the soils. Containers must have appropriate waste labels or placards. The Contractor is responsible for decontamination of rolloff boxes as required by the box providers. The Contractor shall place an appropriate warning signage adjacent to excavated material stockpiles. Install signs at conspicuous locations immediately adjacent to all stockpiled materials clearly indicating the nature of stockpiled materials (e.g., hazardous materials, nonhazardous contaminated materials, backfill materials etc.). The Contractor shall provide suitable barricades, fencing, signing and other warning and safety devices to protect the public and other site workers from contaminated materials, open excavations, heavy equipment, and other construction activities. Following removal of stockpile materials, the Contractor shall return stockpile areas to preconstruction conditions, as determined by the Engineer. The Contractor shall remove all equipment and materials from the site at the conclusion of the job, including polyethylene sheeting, soil liners, covers, straw bales, personal protective equipment, and other materials at Contractor expense in accordance with all applicable regulations. Storage and handling of soils is included in the Base Bid, no additional compensation will be made for resulting Work delays, moving soil after it has been excavated and stockpiled, or ancillary costs. 2-05.2(7) Profiling and Manifests The Contractor shall be responsible for any additional profiling, analysis, or documentation that may be required by the treatment/disposal facilities for Contaminated Soil. Reports are 2-05 Contaminated Soil and Water City of Renton 1-127 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions available for review from the Contracting Agency that may aid the Contractor with completing profiling as needed for the disposal/treatment facility. The Contractor shall prepare all required profile forms and manifests on behalf of the Contracting Agency, for transportation and disposal of all contaminated materials and provide the forms to the Engineer for Owner’s/Generator’s signature. Prior to preparing a manifest for the Contracting Agency, the Contractor shall obtain Engineer’s approval for each load of waste material proposed for disposal. The Contractor shall allow five (5) working days (excluding weekends) for obtaining an authorized “generator” signature from the Contracting Agency for all manifests or other forms required by the treatment/disposal facility. 2-05.2(8) Disposal of Excavated Soils The Engineer reserves the right to contact the treatment/disposal facilities designated by the Contractor and the appropriate regulatory agencies to verify the information provided by the Contractor. The Contractor shall verify that the receiving facility receiving each shipment of waste from the site meets the following requirements: 1. The facility is fully licensed and permitted to accept the waste by the appropriate United States of America, County, State and Federal agencies including but not limited to: county health department, Iocal air pollution control authority, State of Washington Department of Ecology, and U.S. Environmental Protection agency. Facilities not holding valid County, State or Federal permits to accept contaminated soils will not be approved. Landfills and thermal treatment facilities must have a valid solid waste permit lFl accordance with the provisions of Chapter 70.95 of the Revised Code of Washington (RCW) Chapter 173- 350 or 173-351 of the Washington Administrative Code (WAC). Land use permits, stormwater permits, agency letters of concurrence will not be accepted in lieu of the above-required soil treatment and/or disposal permits. 2. The facility will provide the treatment and or disposal services indicated and will accept the quantity and types of waste generated under this Contract within the time period of performance of this Contract. 3. The facility must not have any significant violations or other environmental conditions that affect the satisfactory operation of the facility. The Contractor shall coordinate with the waste disposal facility for loading of contaminated materials for the project site. The Contractor shall have the sole responsibility of coordinating the number of trucks, loading operations, and hours for loading and hauling with the disposal facility. Contractor shall coordinate transportation of contaminated soil with excavation Work to maintain excavation production rates for completion of the Work in accordance with the construction milestones. 2-05.2(9) Decontamination Contractor shall minimize the spread of contaminated materials by decontaminating all equipment before it leaves an exclusion zone (contaminated area), as defined in the Contractor’s Health and Safety Plan. Contractor shall dispose of all decontamination water generated on-site in accordance with all applicable regulations. All equipment 2-05 Contaminated Soil and Water City of Renton 1-128 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions decontamination procedures shall be performed in a decontamination facility as specified in the approved Contractor’s Contaminated Soil and Groundwater Handling and Management Plan. The Contractor shall be responsible for the onsite/off-site management and disposal of all the Contractor’s and Engineer’s incidental wastes resulting from handling of contaminated soil and ground water. Incidental contaminated material includes personal protective equipment (PPE), decontamination water, erosion control materials, residual soil samples, and other materials (plastic sheeting, wash basins, scrub brushes, rags, etc.) 2-05.2(10) Certification of Waste Weight and Disposal The Contractor shall prepare and provide the Engineer with copies of waste manifests and weigh tickets for each shipment of regulated waste from the site indicating each waste shipment has been received at the disposal facility. Weight, and not volume, shall be used to measure solid waste quantities for manifest and payment purposes. The Contractor shall ensure that weigh scales used are approved by an appropriate State agency. The Contractor shall submit to Engineer certification of treatment/disposal for all regulated materials removed from the site within 14 days of removal. The Contractor shall provide the City with a copy of the shipping manifest or bill of lading indicating the amount of material hauled to disposal and bearing the disposal site operator's confirmation for receipt of the material. Manifests shall be provided within one (1) working day of disposal. 2-05.2(11) Contaminated Water All water that is removed from areas of contamination, including free water that leaches from contaminated soil stockpiles or water that is suspected of being contaminated, shall be collected, handled and stored in a manner that prevents the spread of contamination to adjacent soil or water or other surfaces. The Contractor is responsible for all contaminated water sampling required to determine appropriate treatment, discharge or disposal. Sampling results shall be provided to the City whenever samples are taken. The Contractor shall obtain an Individual Authorization for Construction Dewatering from King County to discharge prior to any discharge of contaminated water to the sewer system. The Contractor is responsible for obtaining the permit, permit compliance, monitoring, sampling, fees, renewals, modifications, fines, and all other requirements related to the permit. If obtained, a copy of the dewatering permit shall be provided to the City before any excavation activities begin. The Contractor shall treat contaminated water as required to meet the King Countyapplicable permit criteria before discharge to the sanitary sewer or storm sewer. Treated contaminated water shall only be discharged into an approved collection system with the applicable permits in place. Dewatering of contaminated water shall never cause or contribute to surcharging of the King County sewer system or flooding from the City sewer system or storm drain system onto the ground surface. END OF SECTION 2-05 2-06 Subgrade Preparation City of Renton 1-129 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 2-06 SUBGRADE PREPARATION (******) Section 2-06.2 is a new section: 2-06.2 Subgrade Preparation to be Incidental Subgrade preparation and maintenance including watering shall be considered as incidental to the construction and all costs thereof shall be included in the appropriate unit or lump sum contract bid prices. Protection of subgrade from excessive moisture and/or disturbance once prepared and approved by the Engineer shall be considered as incidental to the construction and all costs thereof shall be included in the appropriate unit or lump sum contract bid prices. Failure to protect subgrade that results in over-excavation and material replacement directed by the Engineer shall be paid for by the Contractor and no additional compensation shall be made. Section 2-06.3(3) is a new section: 2-06.3(3) Subgrade for Permeable Pavements (March 9, 2016 APWA GSP) Before placing permeable ballast for Porous HMA/WMA, the Contractor shall bring the Subgrade to the required line, grade, and cross-section. The Contractor shall compact the Subgrade to a depth of 6 inches to at least 90 percent, but not more than 92 percent, of the maximum density as determined by the compaction control tests described in Section 2- 03.3(14)D. Two (2) density tests will be conducted for every 5,000 square feet of prepared subgrade; or four (4) tests per 200 lineal feet of roadway or sidewalk. All subgrade shall be firm and unyielding as determined by the Engineer. The Contractor shall take measures to protect the prepared and approved subgrade from traffic, water run-on, standing water, or other damage. Subgrade that has been over compacted, shall be scarified to a minimum depth of eight (8) inches and recompacted. Material used to protect the Subgrade from traffic or provide access to adjacent facilities shall be removed and the subgrade compacted prior to placing geotextile, if used and/or permeable ballast. END OF SECTION 2-06 2-09 Structure Excavation City of Renton 1-130 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 2-09 STRUCTURE EXCAVATION 2-09.1 Description (******) Supplement this section as follows: This Work also includes the excavation, haul, and disposal of all unsuitable materials such as peat, muck, logs, stumps, swampy or other materials defined by the Engineer. 2-09.3 Construction Requirements 2-09.3(1) General Requirements 2-09.3(1)D Disposal of Excavated Material (******) Revise this section as follows: The second paragraph is replaced with: All costs for disposing of excavated material within or external to the project limits shall be included in the unit contract price for structure excavation, Class A or B. The third paragraph is replaced with: If the Contract includes structure excavation, Class A or B, including haul, the unit contract price shall include all costs for loading and hauling the material the full required distance, otherwise all such disposal costs shall be considered incidental to the Work. 2-09.3(3)D Shoring and Cofferdams (******) Supplement this section as follows: Provide adequate shoring safety systems meeting the requirements of the Washington Industrial Safety and Health Act, Chapter 49.17 RCW for all excavations. Sloping of excavation sides may be used instead of shoring, sheeting, or bracing to the extent that such sloping is practical. Sloping of the excavation sides will not be permitted where the slopes extend past the right-of-way or easement boundary, where the sloping infringes on other work or existing facilities, or where sloping excessively impacts the surrounding areas, as determined by the Engineer. A sheet pile system, if constructed, shall be installed using a variable electric moment hammer or similar method to limit vibration induced settlement. Settlement shall be monitored in accordance with the Contract Documents. The Contractor shall submit Shoring Plans, prior to beginning work, showing proposed methods and construction details for all construction excavations 4 feet or more in depth in accordance with Sections 1-05.3. The plan shall be specific to the project, show the type and location of Structural Shoring and Non-Structural Shoring, and address both construction of and removal of all shoring required. The Shoring Plan shall include Plans and calculations prepared by (or under the direction of) a professional engineer licensed under Title 18 RCW, State of Washington, and shall carry the professional engineer’s signature and seal. For trench boxes and hydraulic shoring systems, manufacturers certified plans may be submitted in accordance with Section 2-09.3(4). 2-09 Structure Excavation City of Renton 1-131 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions When work is complete, the Contractor shall remove structural shoring to at least 4 feet below final grade. END OF SECTION 2-09 END DIVISION 2 DIVISION 4 BASE City of Renton 1-132 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 4-04 BALLAST AND CRUSHED SURFACING 4-04.2 Gravel Base (March 9, 2016 APWA GSP) Revise section 9-03.9(2) to read: Permeable Ballast Permeable ballast shall meet the requirements of Section 9-03.9(1) for ballast except for the following special requirements. The grading and quality requirements are: Grading No. 1 Grading No. 2 (AASHTO No. 3) Sieve Size Percent Passing Sieve Size Percent Passing 2-1/2” 99-100 2-1/2” 100 2” 65-100 2” 90-100 ¾” 40-80 1-½” 35-70 No. 4 0-5 1” 0-15 No. 100 0-2 ½” 0-5 % Fracture 95 No. 100 0-3 All percentages are by weight. % Fracture 95 The sand equivalent value and dust ratio requirements do not apply. Los Angeles Wear, 500 Rev. 30% maximum Degradation Factor 30 minimum The fracture requirement shall be at least two (2) fractured faces and will apply to the combined aggregate retained on the No. 4 sieve in accordance with WSDOT FOP for AASHTO T 335. The minimum void ratio of the aggregate shall be 30 percent as determined by AASHTO T 19. Permeable ballast material may be conditionally approved based on Contractor submitted sampled materials prior to delivery to the site. Final Acceptance will be based on conformance testing completed on material that has been delivered, installed, and compacted on site. The exact point of acceptance will be determined by the Engineer. Material out of conformance with the project specifications will be removed and replaced at the Contractor’s expense. 4-04.3(5) Shaping and Compaction (March 9, 2016 APWA GSP) Supplement this section with the following: DIVISION 4 BASE City of Renton 1-133 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Immediately following spreading and final shaping each layer of surfacing shall be lightly compacted in one lift until no visible movement of aggregate is observed resulting in a firm and unyielding condition, as determined by the Engineer. END OF SECTION 4-04 END DIVISION 4 DIVISION 5 SURFACE TREATMENTS AND PAVEMENTS City of Renton 1-134 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 5-04 HOT MIX ASPHALT (******) Delete Section 5-04, Hot Mix Asphalt and replace it with the following: 5-04 HOT MIX ASPHALT (Non-Statistical, Commercial) 5-04.1 Description This Work shall consist of providing and placing one or more layers of plant-mixed hot mix asphalt (HMA) on a prepared foundation or base in accordance with these Specifications. and the lines, grades, thicknesses, and typical cross-sections shown in the Plans. The Contractor shall maintain the existing street surface contours (e.g. street profile and cross section, etc.), unless otherwise directed by the Engineer. The manufacture of HMA may include warm mix asphalt (WMA) processes in accordance with these Specifications. WMA processes include organic additives, chemical additives, and foaming. HMA shall be composed of asphalt binder and mineral materials as may be required, mixed in the proportions specified to provide a homogeneous, stable, and workable mixture. All HMA to be placed in this contract shall be HMA CL. ½” PG 58H-22. 5-04.2 Materials Materials shall meet the requirements of the following sections: Asphalt Binder 9-02.1(4) Cationic Emulsified Asphalt 9-02.1(6) Anti-Stripping Additive 9-02.4 HMA Additive 9-02.5 Aggregates 9-03.8 Recycled Asphalt Pavement 9-03.8(3)B Mineral Filler 9-03.8(5) Recycled Material 9-03.21 Portland Cement 9-01 Sand 9-03.1(2) (As noted in 5-04.3(5)C for crack sealing) Joint Sealant 9-04.2 Foam Backer Rod 9-04.2(3)A The Contract documents may establish that the various mineral materials required for the manufacture of HMA will be furnished in whole or in part by the Contracting Agency. If the documents do not establish the furnishing of any of these mineral materials by the Contracting Agency, the Contractor shall be required to furnish such materials in the amounts required for the designated mix. Mineral materials include coarse and fine aggregates, and mineral filler. The Contractor may choose to utilize recycled asphalt pavement (RAP) in the production of HMA. The RAP may be from pavements removed under the Contract, if any, or pavement material from an existing stockpile. The Contractor may use up to 20 percent RAP by total weight of HMA with no additional sampling or testing of the RAP. The RAP shall be sampled and tested at a frequency of one sample for every 1,000 tons produced and not less than ten samples per project. The 5-04 Hot Mix Asphalt City of Renton 1-135 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions asphalt content and gradation test data shall be reported to the Contracting Agency when submitting the mix design for approval on the QPL. The Contractor shall include the RAP as part of the mix design as defined in these Specifications. The grade of asphalt binder shall be as required by the Contract. Blending of asphalt binder from different sources is not permitted. The Contractor may only use warm mix asphalt (WMA) processes in the production of HMA with 20 percent or less RAP by total weight of HMA. The Contractor shall submit to the Engineer for approval the process that is proposed and how it will be used in the manufacture of HMA. Production of aggregates shall comply with the requirements of Section 3-01. Preparation of stockpile site, the stockpiling of aggregates, and the removal of aggregates from stockpiles shall comply with the requirements of Section 3-02. 5-04.2(1) How to Get an HMA Mix Design on the QPL If the contractor wishes to submit a mix design for inclusion in the Qualified Products List (QPL), please follow the WSDOT process as follows: Comply with each of the following: · Develop the mix design in accordance with WSDOT SOP 732. · Develop a mix design that complies with Sections 9-03.8(2) and 9-03.8(6). · Develop a mix design no more than 6 months prior to submitting it for QPL evaluation. · Submit mix designs to the WSDOT State Materials Laboratory in Tumwater, including WSDOT Form 350-042. · Include representative samples of the materials that are to be used in the HMA production as part of the mix design submittal. · Identify the brand, type, and percentage of anti-stripping additive in the mix design submittal. · Include with the mix design submittal a certification from the asphalt binder supplier that the anti-stripping additive is compatible with the crude source and the formulation of asphalt binder proposed for use in the mix design. · Do not include warm mix asphalt (WMA) additives when developing a mix design or submitting a mix design for QPL evaluation. The use of warm mix asphalt (WMA) additives is not part of the process for obtaining approval for listing a mix design on the QPL. Refer to Section 5-04.2(2)B. 5-04.2(1)A Vacant 5-04.2(2) Mix Design – Obtaining Project Approval No paving shall begin prior to the approval of the mix design by the Engineer. Nonstatistical evaluation will be used for all HMA not designated as Commercial HMA in the contract documents. 5-04 Hot Mix Asphalt City of Renton 1-136 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Commercial evaluation will be used for Commercial HMA and for other classes of HMA in the following applications: sidewalks, road approaches, ditches, slopes, paths, trails, gores, prelevel, and pavement repair. Other nonstructural applications of HMA accepted by commercial evaluation shall be as approved by the Project Engineer. Sampling and testing of HMA accepted by commercial evaluation will be at the option of the Project Engineer. The Proposal quantity of HMA that is accepted by commercial evaluation will be excluded from the quantities used in the determination of nonstatistical evaluation. Nonstatistical Mix Design. Fifteen days prior to the first day of paving the contractor shall provide one of the following mix design verification certifications for Contracting Agency review; · The WSDOT Mix Design Evaluation Report from the current WSDOT QPL, or one of the mix design verification certifications listed below. · The proposed HMA mix design on WSDOT Form 350-042 with the seal and certification (stamp & signature) of a valid licensed Washington State Professional Engineer. · The Mix Design Report for the proposed HMA mix design developed by a qualified City or County laboratory that is within one year of the approval date.** ** The mix design report shall be performed by a lab accredited by a national authority such as Laboratory Accreditation Bureau, L-A-B for Construction Materials Testing, The Construction Materials Engineering Council (CMEC’s) ISO 17025 or AASHTO Accreditation Program (AAP) and shall supply evidence of participation in the AASHTO: resource proficiency sample program. Mix designs for HMA accepted by Nonstatistical evaluation shall; · Have the aggregate structure and asphalt binder content determined in accordance with WSDOT Standard Operating Procedure 732 and meet the requirements of Sections 9-03.8(2), except that Hamburg testing for ruts and stripping are at the discretion of the Engineer, and 9-03.8(6). · Have anti-strip requirements, if any, for the proposed mix design determined in accordance with AASHTO T 283 or T 324, or based on historic anti-strip and aggregate source compatibility from previous WSDOT lab testing. At the discretion of the Engineer, agencies may accept verified mix designs older than 12 months from the original verification date with a certification from the Contractor that the materials and sources are the same as those shown on the original mix design. Commercial Evaluation. Approval of a mix design for “Commercial Evaluation” will be based on a review of the Contractor’s submittal of WSDOT Form 350-042 (For commercial mixes, AASHTO T 324 evaluation is not required) or a Mix Design from the current WSDOT QPL or from one of the processes allowed by this section. Testing of the HMA by the Contracting Agency for mix design approval is not required. For the Bid Item Commercial HMA, the Contractor shall select a class of HMA and design level of Equivalent Single Axle Loads (ESAL’s) appropriate for the required use. 5-04 Hot Mix Asphalt City of Renton 1-137 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions ESAL's The number of ESAL's for the design and acceptance of the HMA shall be *** 4 *** million. 5-04.2(2)B Using Warm Mix Asphalt Processes The Contractor may elect to use additives that reduce the optimum mixing temperature or serve as a compaction aid for producing HMA. Additives include organic additives, chemical additives and foaming processes. The use of Additives is subject to the following: · Do not use additives that reduce the mixing temperature more than allowed in Section 5-04.3(6) in the production of mixtures. · Before using additives, obtain the Engineer’s approval using WSDOT Form 350-076 to describe the proposed additive and process. 5-04.3 Construction Requirements 5-04.3(1) Weather Limitations Do not place HMA for wearing course on any Traveled Way beginning October 1st through March 31st of the following year without written concurrence from the Engineer. Do not place HMA on any wet surface, or when the average surface temperatures are less than those specified below, or when weather conditions otherwise prevent the proper handling or finishing of the HMA. Minimum Surface Temperature for Paving Compacted Thickness (Feet) Wearing Course Other Courses Less than 0.10 55°F 45°F 0.10 to 0.20 45°F 35°F More than 0.20 35°F 35°F 5-04.3(2) Paving Under Traffic When the Roadway being paved is open to traffic, the requirements of this Section shall apply. The Contractor shall keep intersections open to traffic at all times except when paving the intersection or paving across the intersection. During such time, and provided that there has been an advance warning to the public, the intersection may be closed for the minimum time required to place and compact the mixture. In hot weather, the Engineer may require the application of water to the pavement to accelerate the finish rolling of the pavement and to shorten the time required before reopening to traffic. Before closing an intersection, advance warning signs shall be placed and signs shall also be placed marking the detour or alternate route. During paving operations, temporary pavement markings shall be maintained throughout the project. Temporary pavement markings shall be installed on the Roadway prior to opening to traffic. Temporary pavement markings shall be in accordance with Section 8-23. All costs in connection with performing the Work in accordance with these requirements, except the cost of temporary pavement markings, shall be included in the unit Contract prices for the various Bid items involved in the Contract. 5-04 Hot Mix Asphalt City of Renton 1-138 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 5-04.3(3) Equipment 5-04.3(3)A Mixing Plant Plants used for the preparation of HMA shall conform to the following requirements: 1. Equipment for Preparation of Asphalt Binder – Tanks for the storage of asphalt binder shall be equipped to heat and hold the material at the required temperatures. The heating shall be accomplished by steam coils, electricity, or other approved means so that no flame shall be in contact with the storage tank. The circulating system for the asphalt binder shall be designed to ensure proper and continuous circulation during the operating period. A valve for the purpose of sampling the asphalt binder shall be placed in either the storage tank or in the supply line to the mixer. 2. Thermometric Equipment – An armored thermometer, capable of detecting temperature ranges expected in the HMA mix, shall be fixed in the asphalt binder feed line at a location near the charging valve at the mixer unit. The thermometer location shall be convenient and safe for access by Inspectors. The plant shall also be equipped with an approved dial-scale thermometer, a mercury actuated thermometer, an electric pyrometer, or another approved thermometric instrument placed at the discharge chute of the drier to automatically register or indicate the temperature of the heated aggregates. This device shall be in full view of the plant operator. 3. Heating of Asphalt Binder – The temperature of the asphalt binder shall not exceed the maximum recommended by the asphalt binder manufacturer nor shall it be below the minimum temperature required to maintain the asphalt binder in a homogeneous state. The asphalt binder shall be heated in a manner that will avoid local variations in heating. The heating method shall provide a continuous supply of asphalt binder to the mixer at a uniform average temperature with no individual variations exceeding 25°F. Also, when a WMA additive is included in the asphalt binder, the temperature of the asphalt binder shall not exceed the maximum recommended by the manufacturer of the WMA additive. 4. Sampling and Testing of Mineral Materials – The HMA plant shall be equipped with a mechanical sampler for the sampling of the mineral materials. The mechanical sampler shall meet the requirements of Section 1-05.6 for the crushing and screening operation. The Contractor shall provide for the setup and operation of the field testing facilities of the Contracting Agency as provided for in Section 3-01.2(2). 5. Sampling HMA – The HMA plant shall provide for sampling HMA by one of the following methods: a. A mechanical sampling device attached to the HMA plant. b. Platforms or devices to enable sampling from the hauling vehicle without entering the hauling vehicle. 5-04.3(3)B Hauling Equipment Trucks used for hauling HMA shall have tight, clean, smooth metal beds and shall have a cover of canvas or other suitable material of sufficient size to protect the mixture from adverse weather. Whenever the weather conditions during the work shift include, or are forecast to include, precipitation or an air temperature less than 45°F or when time from loading to unloading exceeds 30 minutes, the cover shall be securely attached to protect the HMA. 5-04 Hot Mix Asphalt City of Renton 1-139 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions The contractor shall provide an environmentally benign means to prevent the HMA mixture from adhering to the hauling equipment. Excess release agent shall be drained prior to filling hauling equipment with HMA. Petroleum derivatives or other coating material that contaminate or alter the characteristics of the HMA shall not be used. For live bed trucks, the conveyer shall be in operation during the process of applying the release agent. 5-04.3(3)C Pavers HMA pavers shall be self-contained, power-propelled units, provided with an internally heated vibratory screed and shall be capable of spreading and finishing courses of HMA plant mix material in lane widths required by the paving section shown in the Plans. The HMA paver shall be in good condition and shall have the most current equipment available from the manufacturer for the prevention of segregation of the HMA mixture installed, in good condition, and in working order. The equipment certification shall list the make, model, and year of the paver and any equipment that has been retrofitted. The screed shall be operated in accordance with the manufacturer’s recommendations and shall effectively produce a finished surface of the required evenness and texture without tearing, shoving, segregating, or gouging the mixture. A copy of the manufacturer’s recommendations shall be provided upon request by the Contracting Agency. Extensions will be allowed provided they produce the same results, including ride, density, and surface texture as obtained by the primary screed. Extensions without augers and an internally heated vibratory screed shall not be used in the Traveled Way. When specified in the Contract or required by the Engineer, reference lines for vertical control will be required. Lines shall be placed on both outer edges of the Traveled Way of each Roadway. Horizontal control utilizing the reference line will be permitted. The grade and slope for intermediate lanes shall be controlled automatically from reference lines or by means of a mat referencing device and a slope control device. When the finish of the grade prepared for paving is superior to the established tolerances and when, in the opinion of the Engineer, further improvement to the line, grade, cross-section, and smoothness can best be achieved without the use of the reference line, a mat referencing device may be substituted for the reference line. Substitution of the device will be subject to the continued approval of the Engineer. A joint matcher may be used subject to the approval of the Engineer. The reference line may be removed after the completion of the first course of HMA when approved by the Engineer. Whenever the Engineer determines that any of these methods are failing to provide the necessary vertical control, the reference lines will be reinstalled by the Contractor. The Contractor shall furnish and install all pins, brackets, tensioning devices, wire, and accessories necessary for satisfactory operation of the automatic control equipment. If the paving machine in use is not providing the required finish, the Engineer may suspend Work as allowed by Section 1-08.6. Any cleaning or solvent type liquids spilled on the pavement shall be thoroughly removed before paving proceeds. 5-04.3(3)D Material Transfer Device or Material Transfer Vehicle A Material Transfer Device/Vehicle (MTD/V) shall only be used with the Engineer’s approval, unless other-wise required by the contract. A MTD/V is not required for this contract. 5-04 Hot Mix Asphalt City of Renton 1-140 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Where an MTD/V is required by the contract, the Engineer may approve paving without an MTD/V, at the request of the Contractor. The Engineer will determine if an equitable adjustment in cost or time is due. When used, the MTD/V shall mix the HMA after delivery by the hauling equipment and prior to laydown by the paving machine. Mixing of the HMA shall be sufficient to obtain a uniform temperature throughout the mixture. If a windrow elevator is used, the length of the windrow may be limited in urban areas or through intersections, at the discretion of the Engineer. To be approved for use, an MTV: 1. Shall be self-propelled vehicle, separate from the hauling vehicle or paver. 2. Shall not be connected to the hauling vehicle or paver. 3. May accept HMA directly from the haul vehicle or pick up HMA from a windrow. 4. Shall mix the HMA after delivery by the hauling equipment and prior to placement into the paving machine. 5. Shall mix the HMA sufficiently to obtain a uniform temperature throughout the mixture. To be approved for use, an MTD: 1. Shall be positively connected to the paver. 2. May accept HMA directly from the haul vehicle or pick up HMA from a windrow. 3. Shall mix the HMA after delivery by the hauling equipment and prior to placement into the paving machine. 4. Shall mix the HMA sufficiently to obtain a uniform temperature throughout the mixture. 5-04.3(3)E Rollers Rollers shall be of the steel wheel, vibratory, oscillatory, or pneumatic tire type, in good condition and capable of reversing without backlash. Operation of the roller shall be in accordance with the manufacturer’s recommendations. When ordered by the Engineer for any roller planned for use on the project, the Contractor shall provide a copy of the manufacturer’s recommendation for the use of that roller for compaction of HMA. The number and weight of rollers shall be sufficient to compact the mixture in compliance with the requirements of Section 5-04.3(10). The use of equipment that results in crushing of the aggregate will not be permitted. Rollers producing pickup, washboard, uneven compaction of the surface, displacement of the mixture or other undesirable results shall not be used. 5-04.3(4) Preparation of Existing Paved Surfaces When the surface of the existing pavement or old base is irregular, the Contractor shall bring it to a uniform grade and cross-section as shown on the Plans or approved by the Engineer. Preleveling of uneven or broken surfaces over which HMA is to be placed may be accomplished by using an asphalt paver, a motor patrol grader, or by hand raking, as approved by the Engineer. 5-04 Hot Mix Asphalt City of Renton 1-141 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Compaction of preleveling HMA shall be to the satisfaction of the Engineer and may require the use of small steel wheel rollers, plate compactors, or pneumatic rollers to avoid bridging across preleveled areas by the compaction equipment. Equipment used for the compaction of preleveling HMA shall be approved by the Engineer. Before construction of HMA on an existing paved surface, the entire surface of the pavement shall be clean. All fatty asphalt patches, grease drippings, and other objectionable matter shall be entirely removed from the existing pavement. All pavements or bituminous surfaces shall be thoroughly cleaned of dust, soil, pavement grindings, and other foreign matter. All holes and small depressions shall be filled with an appropriate class of HMA. The surface of the patched area shall be leveled and compacted thoroughly. Prior to the application of tack coat, or paving, the condition of the surface shall be approved by the Engineer. A tack coat of asphalt shall be applied to all paved surfaces on which any course of HMA is to be placed or abutted; except that tack coat may be omitted from clean, newly paved surfaces at the discretion of the Engineer. Tack coat shall be uniformly applied to cover the existing pavement with a thin film of residual asphalt free of streaks and bare spots at a rate between 0.02 and 0.10 gallons per square yard of retained asphalt. The rate of application shall be approved by the Engineer. A heavy application of tack coat shall be applied to all joints. For Roadways open to traffic, the application of tack coat shall be limited to surfaces that will be paved during the same working shift. The spreading equipment shall be equipped with a thermometer to indicate the temperature of the tack coat material. Equipment shall not operate on tacked surfaces until the tack has broken and cured. If the Contractor’s operation damages the tack coat it shall be repaired prior to placement of the HMA. The tack coat shall be CSS-1, or CSS-1h emulsified asphalt. The CSS-1 and CSS-1h emulsified asphalt may be diluted once with water at a rate not to exceed one part water to one part emulsified asphalt. The tack coat shall have sufficient temperature such that it may be applied uniformly at the specified rate of application and shall not exceed the maximum temperature recommended by the emulsified asphalt manufacturer. All utility appurtenances (e.g. manhole covers, valve covers, etc.) located within the paving limits shall be coated with a biodegradable soap to prevent the tack coat and HMA from sticking to them. Diesel shall not be used for this purpose. After application of the biodegradable soap, all catch basins shall be covered to prevent tack and HMA from entering into them. 5-04.3(4)A Crack Sealing 5-04.3(4)A1 General When the Proposal includes a pay item for crack sealing, seal all cracks ¼ inch in width and greater. Cleaning: Ensure that cracks are thoroughly clean, dry and free of all loose and foreign material when filling with crack sealant material. Use a hot compressed air lance to dry and warm the pavement surfaces within the crack immediately prior to filling a crack with the sealant material. Do not overheat pavement. Do not use direct flame dryers. Routing cracks is not required. 5-04 Hot Mix Asphalt City of Renton 1-142 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Sand Slurry: For cracks that are to be filled with sand slurry, thoroughly mix the components and pour the mixture into the cracks until full. Add additional CSS-1 cationic emulsified asphalt to the sand slurry as needed for workability to ensure the mixture will completely fill the cracks. Strike off the sand slurry flush with the existing pavement surface and allow the mixture to cure. Top off cracks that were not completely filled with additional sand slurry. Do not place the HMA overlay until the slurry has fully cured. The sand slurry shall consist of approximately 20 percent CSS-1 emulsified asphalt, approximately 2 percent portland cement, water (if required), and the remainder clean Class 1 or 2 fine aggregate per section 9-03.1(2). The components shall be thoroughly mixed and then poured into the cracks and joints until full. The following day, any cracks or joints that are not completely filled shall be topped off with additional sand slurry. After the sand slurry is placed, the filler shall be struck off flush with the existing pavement surface and allowed to cure. The HMA overlay shall not be placed until the slurry has fully cured. The requirements of Section 1-06 will not apply to the portland cement and sand used in the sand slurry. In areas where HMA will be placed, use sand slurry to fill the cracks. In areas where HMA will not be placed, fill the cracks as follows: 1. Cracks ¼ inch to 1 inch in width - fill with hot poured sealant. 2. Cracks greater than 1 inch in width – fill with sand slurry. Hot Poured Sealant: For cracks that are to be filled with hot poured sealant, apply the material in accordance with these requirements and the manufacturer’s recommendations. Furnish a Type 1 Working Drawing of the manufacturer’s product information and recommendations to the Engineer prior to the start of work, including the manufacturer’s recommended heating time and temperatures, allowable storage time and temperatures after initial heating, allowable reheating criteria, and application temperature range. Confine hot poured sealant material within the crack. Clean any overflow of sealant from the pavement surface. If, in the opinion of the Engineer, the Contractor’s method of sealing the cracks with hot poured sealant results in an excessive amount of material on the pavement surface, stop and correct the operation to eliminate the excess material. 5-04.3(4)A2 Crack Sealing Areas Prior to Paving In areas where HMA will be placed, use sand slurry to fill the cracks. 5-04.3(4)A3 Crack Sealing Areas Not to be Paved In areas where HMA will not be placed, fill the cracks as follows: A. Cracks ¼ inch to 1 inch in width – fill with hot poured sealant. B. Cracks greater than 1 inch in width – fill with sand slurry. 5-04.3(4)B Vacant 5-04.3(4)C Pavement Repair The Contractor shall excavate pavement repair areas and shall backfill these with HMA in accordance with the details shown in the Plans and as marked in the field. The Contractor shall conduct the excavation operations in a manner that will protect the pavement that is to remain. Pavement not designated to be removed that is damaged as a result of the Contractor’s operations shall be repaired by the Contractor to the satisfaction of the Engineer at no cost to the Contracting Agency. The Contractor shall excavate only within 5-04 Hot Mix Asphalt City of Renton 1-143 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions one lane at a time unless approved otherwise by the Engineer. The Contractor shall not excavate more area than can be completely finished during the same shift, unless approved by the Engineer. Unless otherwise shown in the Plans or determined by the Engineer, excavate to a depth of 1.0 feet. The Engineer will make the final determination of the excavation depth required. The minimum width of any pavement repair area shall be 40 inches unless shown otherwise in the Plans. Before any excavation, the existing pavement shall be sawcut or shall be removed by a pavement grinder. Excavated materials will become the property of the Contractor and shall be disposed of in a Contractor-provided site off the Right of Way or used in accordance with Sections 2-02.3(3) or 9-03.21. Asphalt for tack coat shall be required as specified in Section 5-04.3(4). A heavy application of tack coat shall be applied to all surfaces of existing pavement in the pavement repair area. Placement of the HMA backfill shall be accomplished in lifts not to exceed 0.35-foot compacted depth. Lifts that exceed 0.35-foot of compacted depth may be accomplished with the approval of the Engineer. Each lift shall be thoroughly compacted by a mechanical tamper or a roller. 5-04.3(5) Producing/Stockpiling Aggregates and RAP Aggregates and RAP shall be stockpiled according to the requirements of Section 3-02. Sufficient storage space shall be provided for each size of aggregate and RAP. Materials shall be removed from stockpile(s) in a manner to ensure minimal segregation when being moved to the HMA plant for processing into the final mixture. Different aggregate sizes shall be kept separated until they have been delivered to the HMA plant. 5-04.3(5)A Vacant 5-04.3(6) Mixing After the required amount of mineral materials, asphalt binder, recycling agent and anti- stripping additives have been introduced into the mixer the HMA shall be mixed until complete and uniform coating of the particles and thorough distribution of the asphalt binder throughout the mineral materials is ensured. When discharged, the temperature of the HMA shall not exceed the optimum mixing temperature by more than 25°F as shown on the reference mix design report or as approved by the Engineer. Also, when a WMA additive is included in the manufacture of HMA, the discharge temperature of the HMA shall not exceed the maximum recommended by the manufacturer of the WMA additive. A maximum water content of 2 percent in the mix, at discharge, will be allowed providing the water causes no problems with handling, stripping, or flushing. If the water in the HMA causes any of these problems, the moisture content shall be reduced as directed by the Engineer. Storing or holding of the HMA in approved storage facilities will be permitted with approval of the Engineer, but in no event shall the HMA be held for more than 24 hours. HMA held for more than 24 hours after mixing shall be rejected. Rejected HMA shall be disposed of by the Contractor at no expense to the Contracting Agency. The storage facility shall have an accessible device located at the top of the cone or about the third point. The device shall indicate the amount of material in storage. No HMA shall be accepted from the storage 5-04 Hot Mix Asphalt City of Renton 1-144 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions facility when the HMA in storage is below the top of the cone of the storage facility, except as the storage facility is being emptied at the end of the working shift. Recycled asphalt pavement (RAP) utilized in the production of HMA shall be sized prior to entering the mixer so that a uniform and thoroughly mixed HMA is produced. If there is evidence of the recycled asphalt pavement not breaking down during the heating and mixing of the HMA, the Contractor shall immediately suspend the use of the RAP until changes have been approved by the Engineer. After the required amount of mineral materials, RAP, new asphalt binder and asphalt rejuvenator have been introduced into the mixer the HMA shall be mixed until complete and uniform coating of the particles and thorough distribution of the asphalt binder throughout the mineral materials, and RAP is ensured. 5-04.3(7) Spreading and Finishing The mixture shall be laid upon an approved surface, spread, and struck off to the grade and elevation established. HMA pavers complying with Section 5-04.3(3) shall be used to distribute the mixture. Unless otherwise directed by the Engineer, the nominal compacted depth of any layer of any course shall not exceed the following: HMA Class 1” 0.35 feet HMA Class ¾” and HMA Class ½” wearing course 0.30 feet other courses 0.35 feet HMA Class ⅜” 0.15 feet On areas where irregularities or unavoidable obstacles make the use of mechanical spreading and finishing equipment impractical, the paving may be done with other equipment or by hand. When more than one JMF is being utilized to produce HMA, the material produced for each JMF shall be placed by separate spreading and compacting equipment. The intermingling of HMA produced from more than one JMF is prohibited. Each strip of HMA placed during a work shift shall conform to a single JMF established for the class of HMA specified unless there is a need to make an adjustment in the JMF. All cast off rock from raking shall be removed prior to compaction of final HMA lift. 5-04.3(8) Aggregate Acceptance Prior to Incorporation in HMA For HMA accepted by nonstatistical evaluation the aggregate properties of sand equivalent, uncompacted void content and fracture will be evaluated in accordance with Section 3-04. Sampling and testing of aggregates for HMA accepted by commercial evaluation will be at the option of the Engineer. 5-04.3(9) HMA Mixture Acceptance Acceptance of HMA shall be as provided under nonstatistical, or commercial evaluation. Nonstatistical evaluation will be used for the acceptance of HMA unless Commercial Evaluation is specified. Commercial evaluation will be used for Commercial HMA and for other classes of HMA in the following applications: sidewalks, road approaches, ditches, slopes, paths, trails, gores, prelevel, temporary pavement, and pavement repair. Other nonstructural applications of 5-04 Hot Mix Asphalt City of Renton 1-145 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions HMA accepted by commercial evaluation shall be as approved by the Engineer. Sampling and testing of HMA accepted by commercial evaluation will be at the option of the Engineer. The mix design will be the initial JMF for the class of HMA. The Contractor may request a change in the JMF. Any adjustments to the JMF will require the approval of the Engineer and may be made in accordance with this section. HMA Tolerances and Adjustments 1. Job Mix Formula Tolerances – The constituents of the mixture at the time of acceptance shall be within tolerance. The tolerance limits will be established as follows: For Asphalt Binder and Air Voids (Va), the acceptance limits are determined by adding the tolerances below to the approved JMF values. These values will also be the Upper Specification Limit (USL) and Lower Specification Limit (LSL) required in Section 1-06.2(2)D2. Property Non-Statistical Evaluation Commercial Evaluation Asphalt Binder +/- 0.5% +/- 0.7% Air Voids, Va 2.5% min. and 5.5% max. N/A For Aggregates in the mixture: a. First, determine preliminary upper and lower acceptance limits by applying the following tolerances to the approved JMF. Aggregate Percent Passing Non-Statistical Evaluation Commercial Evaluation 1”, ¾”, ½”, and ⅜” sieves +/- 6% +/- 8% No. 4 sieve +/- 6% +/- 8% No. 8 sieve +/- 6% +/- 8% No. 200 sieve +/- 2.0% +/- 3.0% b. Second, adjust the preliminary upper and lower acceptance limits determined from step (a) the minimum amount necessary so that none of the aggregate properties are outside the control points in Section 9-03.8(6). The resulting values will be the upper and lower acceptance limits for aggregates, as well as the USL and LSL required in Section 1-06.2(2)D2. 2. Job Mix Formula Adjustments – An adjustment to the aggregate gradation or asphalt binder content of the JMF requires approval of the Engineer. Adjustments to the JMF will only be considered if the change produces material of equal or better quality and may require the development of a new mix design if the adjustment exceeds the amounts listed below. a. Aggregates – 2 percent for the aggregate passing the 1½″, 1″, ¾″, ½″, ⅜″, and the No. 4 sieves, 1 percent for aggregate passing the No. 8 sieve, and 0.5 percent for the aggregate passing the No. 200 sieve. The adjusted JMF shall be within the range of the control points in Section 9-03.8(6). 5-04 Hot Mix Asphalt City of Renton 1-146 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions b. Asphalt Binder Content – The Engineer may order or approve changes to asphalt binder content. The maximum adjustment from the approved mix design for the asphalt binder content shall be 0.3 percent. 5-04.3(9)A Vacant 5-04.3(9)B Vacant 5-04.3(9)C Mixture Acceptance – Nonstatistical Evaluation HMA mixture which is accepted by Nonstatistical Evaluation will be evaluated by the Contracting Agency by dividing the HMA tonnage into lots. 5-04.3(9)C1 Mixture Nonstatistical Evaluation – Lots and Sublots A lot is represented by randomly selected samples of the same mix design that will be tested for acceptance. A lot is defined as the total quantity of material or work produced for each Job Mix Formula placed. Only one lot per JMF is expected. A sublot shall be equal to one day’s production or 800 tons, whichever is less except that the final sublot will be a minimum of 400 tons and may be increased to 1200 tons. All of the test results obtained from the acceptance samples from a given lot shall be evaluated collectively. If the Contractor requests a change to the JMF that is approved, the material produced after the change will be evaluated on the basis of the new JMF for the remaining sublots in the current lot and for acceptance of subsequent lots. For a lot in progress with a CPF less than 0.75, a new lot will begin at the Contractor’s request after the Engineer is satisfied that material conforming to the Specifications can be produced. Sampling and testing for evaluation shall be performed on the frequency of one sample per sublot. 5-04.3(9)C2 Mixture Nonstatistical Evaluation Sampling Samples for acceptance testing shall be obtained by the Contractor when ordered by the Engineer. The Contractor shall sample the HMA mixture in the presence of the Engineer and in accordance with AASH-TO T 168. A minimum of three samples should be taken for each class of HMA placed on a project. If used in a structural application, at least one of the three samples shall to be tested. Sampling and testing HMA in a Structural application where quantities are less than 400 tons is at the discretion of the Engineer. For HMA used in a structural application and with a total project quantity less than 800 tons but more than 400 tons, a minimum of one acceptance test shall be performed. In all cases, a minimum of 3 samples will be obtained at the point of acceptance, a minimum of one of the three samples will be tested for conformance to the JMF: · If the test results are found to be within specification requirements, additional testing will be at the Engineer’s discretion. · If test results are found not to be within specification requirements, additional testing of the remaining samples to determine a Composite Pay Factor (CPF) shall be performed. 5-04 Hot Mix Asphalt City of Renton 1-147 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 5-04.3(9)C3 Mixture Nonstatistical Evaluation – Acceptance Testing Testing of HMA for compliance of Va will at the option of the Contracting Agency. If tested, compliance of Va will use WSDOT SOP 731. Testing of HMA for compliance of Va will not be performed by the Contracting Agency for this contract. Testing for compliance of asphalt binder content will be by WSDOT FOP for AASHTO T 308. Testing for compliance of gradation will be by FOP for WAQTC T 27/T 11. 5-04.3(9)C4 Mixture Nonstatistical Evaluation – Pay Factors For each lot of material falling outside the tolerance limits in 5-04.3(9), the Contracting Agency will determine a Composite Pay Factor (CPF) using the following price adjustment factors: Table of Price Adjustment Factors Constituent Factor “f” All aggregate passing: 1½”, 1”, ¾”, ½”, ⅜” and No. 4 sieves 2 All aggregate passing No. 8 sieve 15 All aggregate passing No. 200 sieve 20 Asphalt binder 40 Air Voids (Va) (where applicable) 20 Each lot of HMA produced under Nonstatistical Evaluation and having all constituents falling within the tolerance limits of the job mix formula shall be accepted at the unit Contract price with no further evaluation. When one or more constituents fall outside the nonstatistical tolerance limits in the Job Mix Formula shown in Table of Price Adjustment Factors, the lot shall be evaluated in accordance with Section 1-06.2 to determine the appropriate CPF. The nonstatistical tolerance limits will be used in the calculation of the CPF and the maximum CPF shall be 1.00. When less than three sublots exist, backup samples of the existing sublots or samples from the Roadway shall be tested to provide a minimum of three sets of results for evaluation. 5-04.3(9)C5 Vacant 5-04.3(9)C6 Mixture Nonstatistical Evaluation – Price Adjustments For each lot of HMA mix produced under Nonstatistical Evaluation when the calculated CPF is less than 1.00, a Nonconforming Mix Factor (NCMF) will be determined. The NCMF equals the algebraic difference of CPF minus 1.00 multiplied by 60 percent. The total job mix compliance price adjustment will be calculated as the product of the NCMF, the quantity of HMA in the lot in tons, and the unit Contract price per ton of mix. If a constituent is not measured in accordance with these Specifications, its individual pay factor will be considered 1.00 in calculating the Composite Pay Factor (CPF). 5-04 Hot Mix Asphalt City of Renton 1-148 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 5-04.3(9)C7 Mixture Nonstatistical Evaluation – Retests The Contractor may request a sublot be retested. To request a retest, the Contractor shall submit a written request within 7 calendar days after the specific test results have been received. A split of the original acceptance sample will be retested. The split of the sample will not be tested with the same tester that ran the original acceptance test. The sample will be tested for a complete gradation analysis, asphalt binder content, and, at the option of the agency, Va. The results of the retest will be used for the acceptance of the HMA in place of the original sublot sample test results. The cost of testing will be deducted from any monies due or that may come due the Contractor under the Contract at the rate of $500 per sample. 5-04.3(9)D Mixture Acceptance – Commercial Evaluation If sampled and tested, HMA produced under Commercial Evaluation and having all constituents falling within the tolerance limits of the job mix formula shall be accepted at the unit Contract price with no further evaluation. When one or more constituents fall outside the commercial tolerance limits in the Job Mix Formula shown in 5-04.3(9), the lot shall be evaluated in accordance with Section 1-06.2 to determine the appropriate CPF. The commercial tolerance limits will be used in the calculation of the CPF and the maximum CPF shall be 1.00. When less than three sublots exist, backup samples of the existing sublots or samples from the street shall be tested to provide a minimum of three sets of results for evaluation. For each lot of HMA mix produced and tested under Commercial Evaluation when the calculated CPF is less than 1.00, a Nonconforming Mix Factor (NCMF) will be determined. The NCMF equals the algebraic difference of CPF minus 1.00 multiplied by 60 percent. The Job Mix Compliance Price Adjustment will be calculated as the product of the NCMF, the quantity of HMA in the lot in tons, and the unit Contract price per ton of mix. If a constituent is not measured in accordance with these Specifications, its individual pay factor will be considered 1.00 in calculating the Composite Pay Factor (CPF). 5-04.3(10) HMA Compaction Acceptance HMA mixture accepted by nonstatistical evaluation that is used in traffic lanes, including lanes for intersections, ramps, truck climbing, weaving, and speed change, and having a specified compacted course thickness greater than 0.10-foot, shall be compacted to a specified level of relative density. The specified level of relative density shall be a Composite Pay Factor (CPF) of not less than 0.75 when evaluated in accordance with Section 1-06.2, using a LSL of 92.0 (minimum of 92 percent of the maximum density). The maximum density shall be determined by WSDOT FOP for AASHTO T 729. The specified level of density attained will be determined by the evaluation of the density of the pavement. The density of the pavement shall be determined in accordance with WSDOT FOP for WAQTC TM 8, except that gauge correlation will be at the discretion of the Engineer, when using the nuclear density gauge and WSDOT SOP 736 when using cores to determine density. Tests for the determination of the pavement density will be taken in accordance with the required procedures for measurement by a nuclear density gauge or roadway cores after completion of the finish rolling. If the Contracting Agency uses a nuclear density gauge to determine density the test procedures FOP for WAQTC TM 8 and WSDOT SOP T 729 will be used on the day the mix is placed and prior to opening to traffic. 5-04 Hot Mix Asphalt City of Renton 1-149 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Roadway cores for density may be obtained by either the Contracting Agency or the Contractor in accordance with WSDOT SOP 734. The core diameter shall be 4-inches minimum, unless otherwise approved by the Engineer. Roadway cores will be tested by the Contracting Agency in accordance with WSDOT FOP for AASHTO T 166. If the Contract includes the Bid item “Roadway Core” the cores shall be obtained by the Contractor in the presence of the Engineer on the same day the mix is placed and at locations designated by the Engineer. If the Contract does not include the Bid item “Roadway Core” the Contracting Agency will obtain the cores. For a lot in progress with a CPF less than 0.75, a new lot will begin at the Contractor’s request after the Engineer is satisfied that material conforming to the Specifications can be produced. HMA mixture accepted by commercial evaluation and HMA constructed under conditions other than those listed above shall be compacted on the basis of a test point evaluation of the compaction train. The test point evaluation shall be performed in accordance with instructions from the Engineer. The number of passes with an approved compaction train, required to attain the maximum test point density, shall be used on all subsequent paving. HMA for preleveling shall be thoroughly compacted. HMA that is used for preleveling wheel rutting shall be compacted with a pneumatic tire roller unless otherwise approved by the Engineer. Test Results For a sublot that has been tested with a nuclear density gauge that did not meet the minimum of 92 percent of the reference maximum density in a compaction lot with a CPF below 1.00 and thus subject to a price reduction or rejection, the Contractor may request that a core be used for determination of the relative density of the sublot. The relative density of the core will replace the relative density determined by the nuclear density gauge for the sublot and will be used for calculation of the CPF and acceptance of HMA compaction lot. When cores are taken by the Contracting Agency at the request of the Contractor, they shall be requested by noon of the next workday after the test results for the sublot have been provided or made available to the Contractor. Core locations shall be outside of wheel paths and as determined by the Engineer. Traffic control shall be provided by the Contractor as requested by the Engineer. Failure by the Contractor to provide the requested traffic control will result in forfeiture of the request for cores. When the CPF for the lot based on the results of the HMA cores is less than 1.00, the cost for the coring will be deducted from any monies due or that may become due the Contractor under the Contract at the rate of $200 per core and the Contractor shall pay for the cost of the traffic control. 5-04.3(10)A HMA Compaction – General Compaction Requirements Compaction shall take place when the mixture is in the proper condition so that no undue displacement, cracking, or shoving occurs. Areas inaccessible to large compaction equipment shall be compacted by other mechanical means. Any HMA that becomes loose, broken, contaminated, shows an excess or deficiency of asphalt, or is in any way defective, shall be removed and replaced with new hot mix that shall be immediately compacted to conform to the surrounding area. 5-04 Hot Mix Asphalt City of Renton 1-150 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions The type of rollers to be used and their relative position in the compaction sequence shall generally be the Contractor’s option, provided the specified densities are attained. Unless the Engineer has approved otherwise, rollers shall only be operated in the static mode when the internal temperature of the mix is less than 175°F. Regardless of mix temperature, a roller shall not be operated in a mode that results in checking or cracking of the mat. On bridge decks and on roadway approaches within five feet of a bridge/back of pavement seat, rollers shall not be operated in a vibratory mode, defined as a mode in which the drum vibrates vertically. However, unless otherwise noted on the plans, rollers may be operated in an oscillartory mode, defined as a mode in which the drum vibrates in the horizontal direction only. Refer to contract drawings for HMA Paving Train requirements and restrictions (e.g. equipment spacing, weight limits, etc.). 5-04.3(10)B HMA Compaction – Cyclic Density Low cyclic density areas are defined as spots or streaks in the pavement that are less than 90 percent of the theoretical maximum density. At the Engineer’s discretion, the Engineer may evaluate the HMA pavement for low cyclic density, and when doing so will follow WSDOT SOP 733. A $500 Cyclic Density Price Adjustment will be assessed for any 500- foot section with two or more density readings below 90 percent of the theoretical maximum density. 5-04.3(10)C Vacant 5-04.3(10)D HMA Nonstatistical Compaction 5-04.3(10)D1 HMA Nonstatistical Compaction – Lots and Sublots HMA compaction which is accepted by nonstatistical evaluation will be based on acceptance testing performed by the Contracting Agency dividing the project into compaction lots. A lot is represented by randomly selected samples of the same mix design that will be tested for acceptance. A lot is defined as the total quantity of material or work produced for each Job Mix Formula placed. Only one lot per JMF is expected. A sublot shall be equal to one day’s production or 400 tons, whichever is less except that the final sublot will be a minimum of 200 tons and may be increased to 800 tons. Testing for compaction will be at the rate of 5 tests per sublot per WSDOT T 738. The sublot locations within each density lot will be determined by the Engineer. For a lot in progress with a CPF less than 0.75, a new lot will begin at the Contractor’s request after the Engineer is satisfied that material conforming to the Specifications can be produced. HMA mixture accepted by commercial evaluation and HMA constructed under conditions other than those listed above shall be compacted on the basis of a test point evaluation of the compaction train. The test point evaluation shall be performed in accordance with instructions from the Engineer. The number of passes with an approved compaction train, required to attain the maximum test point density, shall be used on all subsequent paving. HMA for preleveling shall be thoroughly compacted. HMA that is used to prelevel wheel ruts shall be compacted with a pneumatic tire roller unless otherwise approved by the Engineer. 5-04.3(10)D2 HMA Compaction Nonstatistical Evaluation – Acceptance Testing The location of the HMA compaction acceptance tests will be randomly selected by the Engineer from within each sublot, with one test per sublot. 5-04 Hot Mix Asphalt City of Renton 1-151 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 5-04.3(10)D3 HMA Nonstatistical Compaction – Price Adjustments For each compaction lot with one or two sublots, having all sublots attain a relative density that is 92 percent of the reference maximum density the HMA shall be accepted at the unit Contract price with no further evaluation. When a sublot does not attain a relative density that is 92 percent of the reference maximum density, the lot shall be evaluated in accordance with Section 1-06.2 to determine the appropriate CPF. The maximum CPF shall be 1.00, however, lots with a calculated CPF in excess of 1.00 will be used to offset lots with CPF values below 1.00 but greater than 0.90. Lots with CPF lower than 0.90 will be evaluated for compliance per 5-04.3(11). Additional testing by either a nuclear moisture- density gauge or cores will be completed as required to provide a minimum of three tests for evaluation. For compaction below the required 92% a Non-Conforming Compaction Factor (NCCF) will be determined. The NCCF equals the algebraic difference of CPF minus 1.00 multiplied by 40 percent. The Compaction Price Adjustment will be calculated as the product of CPF, the quantity of HMA in the compaction control lot in tons, and the unit Contract price per ton of mix. 5-04.3(11) Reject Work 5-04.3(11)A Reject Work General Work that is defective or does not conform to Contract requirements shall be rejected. The Contractor may propose, in writing, alternatives to removal and replacement of rejected material. Acceptability of such alternative proposals will be determined at the sole discretion of the Engineer. HMA that has been rejected is subject to the requirements in Section 1-06.2(2) and this specification, and the Contractor shall submit a corrective action proposal to the Engineer for approval. 5-04.3(11)B Rejection by Contractor The Contractor may, prior to sampling, elect to remove any defective material and replace it with new material. Any such new material will be sampled, tested, and evaluated for acceptance. 5-04.3(11)C Rejection Without Testing (Mixture or Compaction) The Engineer may, without sampling, reject any batch, load, or section of Roadway that appears defective. Material rejected before placement shall not be incorporated into the pavement. Any rejected section of Roadway shall be removed. No payment will be made for the rejected materials or the removal of the materials unless the Contractor requests that the rejected material be tested. If the Contractor elects to have the rejected material tested, a minimum of three representative samples will be obtained and tested. Acceptance of rejected material will be based on conformance with the nonstatistical acceptance Specification. If the CPF for the rejected material is less than 0.75, no payment will be made for the rejected material; in addition, the cost of sampling and testing shall be borne by the Contractor. If the CPF is greater than or equal to 0.75, the cost of sampling and testing will be borne by the Contracting Agency. If the material is rejected before placement and the CPF is greater than or equal to 0.75, compensation for the rejected material will be at a CPF of 0.75. If rejection occurs after placement and the CPF is greater than or equal to 0.75, compensation for the rejected material will be at the calculated CPF with an addition of 25 percent of the unit Contract price added for the cost of removal and disposal. 5-04 Hot Mix Asphalt City of Renton 1-152 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 5-04.3(11)D Rejection – A Partial Sublot In addition to the random acceptance sampling and testing, the Engineer may also isolate from a normal sublot any material that is suspected of being defective in relative density, gradation or asphalt binder content. Such isolated material will not include an original sample location. A minimum of three random samples of the suspect material will be obtained and tested. The material will then be statistically evaluated as an independent lot in accordance with Section 1-06.2(2). 5-04.3(11)E Rejection - An Entire Sublot An entire sublot that is suspected of being defective may be rejected. When a sublot is rejected a minimum of two additional random samples from this sublot will be obtained. These additional samples and the original sublot will be evaluated as an independent lot in accordance with Section 1-06.2(2). 5-04.3(11)F Rejection - A Lot in Progress The Contractor shall shut down operations and shall not resume HMA placement until such time as the Engineer is satisfied that material conforming to the Specifications can be produced: 1. When the Composite Pay Factor (CPF) of a lot in progress drops below 1.00 and the Contractor is taking no corrective action, or 2. When the Pay Factor (PF) for any constituent of a lot in progress drops below 0.95 and the Contractor is taking no corrective action, or 3. When either the PFi for any constituent or the CPF of a lot in progress is less than 0.75. 5-04.3(11)G Rejection - An Entire Lot (Mixture or Compaction) An entire lot with a CPF of less than 0.75 will be rejected. 5-04.3(12) Joints 5-04.3(12)A HMA Joints 5-04.3(12)A1 Transverse Joints The Contractor shall conduct operations such that the placing of the top or wearing course is a continuous operation or as close to continuous as possible. Unscheduled transverse joints will be allowed and the roller may pass over the unprotected end of the freshly laid mixture only when the placement of the course must be discontinued for such a length of time that the mixture will cool below compaction temperature. When the Work is resumed, the previously compacted mixture shall be cut back to produce a slightly beveled edge for the full thickness of the course. A temporary wedge of HMA constructed on a 20H:1V shall be constructed where a transverse joint as a result of paving or planing is open to traffic. The HMA in the temporary wedge shall be separated from the permanent HMA by strips of heavy wrapping paper or other methods approved by the Engineer. The wrapping paper shall be removed and the joint trimmed to a slightly beveled edge for the full thickness of the course prior to resumption of paving. The material that is cut away shall be wasted and new mix shall be laid against the cut. Rollers or tamping irons shall be used to seal the joint. 5-04 Hot Mix Asphalt City of Renton 1-153 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions All transverse (butt) joints between new and existing asphalt shall be milled to the full overlay depth. All transverse (butt) joints shall be sealed after paving. See Section 5-04.3(17) for requirements. 5-04.3(12)A2 Longitudinal Joints The longitudinal joint in any one course shall be offset from the course immediately below by not more than 6 inches nor less than 2 inches. All longitudinal joints constructed in the wearing course shall be located at a lane line or an edge line of the Traveled Way. A notched wedge joint shall be constructed along all longitudinal joints in the wearing surface of new HMA unless otherwise approved by the Engineer. The notched wedge joint shall have a vertical edge of not less than the maximum aggregate size or more than ½ of the compacted lift thickness and then taper down on a slope not steeper than 4H:1V. The sloped portion of the HMA notched wedge joint shall be uniformly compacted. 5-04.3(12)B Bridge Paving Joint Seals 5-04.3(12)B1 HMA Sawcut and Seal Prior to placing HMA on the bridge deck, establish sawcut alignment points at both ends of the bridge paving joint seals to be placed at the bridge ends, and at interior joints within the bridge deck when and where shown in the Plans. Establish the sawcut alignment points in a manner that they remain functional for use in aligning the sawcut after placing the overlay. Submit a Type 1 Working Drawing consisting of the sealant manufacturer’s application procedure. Construct the bridge paving joint seal as specified ion the Plans and in accordance with the detail shown in the Standard Plans. Construct the sawcut in accordance with the detail shown in the Standard Plan. Construct the sawcut in accordance with Section 5-05.3(8)B and the manufacturer’s application procedure. 5-04.3(12)B2 Paved Panel Joint Seal Construct the paved panel joint seal in accordance with the requirements specified in section 5-04.3(12)B1 and the following requirement: 1. Clean and seal the existing joint between concrete panels in accordance with Section 5-01.3(8) and the details shown in the Standard Plans. 5-04.3(13) Surface Smoothness The completed surface of all courses shall be of uniform texture, smooth, uniform as to crown and grade, and free from defects of all kinds. The completed surface of the wearing course shall not vary more than ¼ inch from the lower edge of a 10-foot straightedge placed on the surface parallel to the centerline. The transverse slope of the completed surface of the wearing course shall vary not more than ¼ inch in 10 feet from the rate of transverse slope shown in the Plans. When deviations in excess of the above tolerances are found that result from a high place in the HMA, the pavement surface shall be corrected by one of the following methods: 1. Removal of material from high places by grinding with an approved grinding machine, or 5-04 Hot Mix Asphalt City of Renton 1-154 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 2. Removal and replacement of the wearing course of HMA, or 3. By other method approved by the Engineer. Correction of defects shall be carried out until there are no deviations anywhere greater than the allowable tolerances. Deviations in excess of the above tolerances that result from a low place in the HMA and deviations resulting from a high place where corrective action, in the opinion of the Engineer, will not produce satisfactory results will be accepted with a price adjustment. The Engineer shall deduct from monies due or that may become due to the Contractor the sum of $500.00 for each and every section of single traffic lane 100 feet in length in which any excessive deviations described above are found. When utility appurtenances such as manhole covers and valve boxes are located in the traveled way, the utility appurtenances shall be adjusted to the finished grade prior to paving. This requirement may be waived when requested by the Contractor, at the discretion of the Engineer or when the adjustment details provided in the project plan or specifications call for utility appurtenance adjustments after the completion of paving. Utility appurtenance adjustment discussions will be included in the Pre-Paving planing (5-04.3(14)B3). Submit a written request to waive this requirement to the Engineer prior to the start of paving. 5-04.3(14) Planing (Milling) Bituminous Pavement The planing plan must be approved by the Engineer and a pre planing meeting must be held prior to the start of any planing. See Section 5-04.3(14)B2 for information on planing submittals. Locations of existing surfacing to be planed are as shown in the Drawings. Where planing an existing pavement is specified in the Contract, the Contractor must remove existing surfacing material and to reshape the surface to remove irregularities. The finished product must be a prepared surface acceptable for receiving an HMA overlay. Use the cold milling method for planing unless otherwise specified in the Contract. Do not use the planer on the final wearing course of new HMA. Conduct planing operations in a manner that does not tear, break, burn, or otherwise damage the surface which is to remain. The finished planed surface must be slightly grooved or roughened and must be free from gouges, deep grooves, ridges, or other imperfections. The Contractor must repair any damage to the surface by the Contractor’s planing equipment, using an Engineer approved method. Repair or replace any metal castings and other surface improvements damaged by planing, as determined by the Engineer. After planing is complete, planed surfaces must be swept, cleaned, and if required by the Contract or directed by the Engineer, patched and preleveled. 5-04 Hot Mix Asphalt City of Renton 1-155 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions The Engineer may direct additional depth planing. Before performing this additional depth planing, the Contractor must conduct a hidden metal in pavement detection survey as specified in Section 5-04.3(14)A. 5-04.3(14)A Pre-Planing Metal Detection Check Before starting planing of pavements, and before any additional depth planing required by the Engineer, the Contractor must conduct a physical survey of existing pavement to be planed with equipment that can identify hidden metal objects. Should such metal be identified, promptly notify the Engineer. See Section 1-07.16(1) regarding the protection of survey monumentation that may be hidden in pavement. The Contractor is solely responsible for any damage to equipment resulting from the Contractor’s failure to conduct a pre-planing metal detection survey, or from the Contractor’s failure to notify the Engineer of any hidden metal that is detected. 5-04.3(14)B Paving and Planing Under Traffic 5-04.3(14)B1 General In addition the requirements of Section 1-07.23 and the traffic controls required in Section 1-10, and unless the Contract specifies otherwise or the Engineer approves, the Contractor must comply with the following: 1. Intersections: a. Keep intersections open to traffic at all times, except when paving or planing operations through an intersection requires closure. Such closure must be kept to the minimum time required to place and compact the HMA mixture, or plane as appropriate. For paving, schedule such closure to individual lanes or portions thereof that allows the traffic volumes and schedule of traffic volumes required in the approved traffic control plan. Schedule work so that adjacent intersections are not impacted at the same time and comply with the traffic control restrictions required by the Traffic Engineer. Each individual intersection closure or partial closure, must be addressed in the traffic control plan, which must be submitted to and accepted by the Engineer, see Section 1-10.2(2). b. When planing or paving and related construction must occur in an intersection, consider scheduling and sequencing such work into quarters of the intersection, or half or more of an intersection with side street detours. Be prepared to sequence the work to individual lanes or portions thereof. c. Should closure of the intersection in its entirety be necessary, and no trolley service is impacted, keep such closure to the minimum time required to place and compact the HMA mixture, plane, remove asphalt, tack coat, and as needed. d. Any work in an intersection requires advance warning in both signage and a number of Working Days advance notice as determined by the Engineer, to alert traffic and emergency services of the intersection closure or partial closure. e. Allow new compacted HMA asphalt to cool to ambient temperature before any traffic is allowed on it. Traffic is not allowed on newly placed asphalt until approval has been obtained from the Engineer. 5-04 Hot Mix Asphalt City of Renton 1-156 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 2. Temporary centerline marking, post-paving temporary marking, temporary stop bars, and maintaining temporary pavement marking must comply with Section 8-23. 3. Permanent pavement marking must comply with Section 8-22. 5-04.3(14)B2 Submittals – Planing Plan and HMA Paving Plan The Contractor must submit a separate planing plan and a separate paving plan to the Engineer at least 5 Working Days in advance of each operation’s activity start date. These plans must show how the moving operation and traffic control are coordinated, as they will be discussed at the pre-planing briefing and pre-paving briefing. When requested by the Engineer, the Contractor must provide each operation’s traffic control plan on 24 x 36 inch or larger size Shop Drawings with a scale showing both the area of operation and sufficient detail of traffic beyond the area of operation where detour traffic may be required. The scale on the Shop Drawings is 1 inch = 20 feet, which may be changed if the Engineer agrees sufficient detail is shown. The planing operation and the paving operation include, but are not limited to, metal detection, removal of asphalt and temporary asphalt of any kind, tack coat and drying, staging of supply trucks, paving trains, rolling, scheduling, and as may be discussed at the briefing. When intersections will be partially or totally blocked, provide adequately sized and noticeable signage alerting traffic of closures to come, a minimum 2 Working Days in advance. The traffic control plan must show where police officers will be stationed when signalization is or may be, countermanded, and show areas where flaggers are proposed. At a minimum, the planing and the paving plan must include: 1. A copy of the accepted traffic control plan, see Section 1-10.2(2), detailing each day’s traffic control as it relates to the specific requirements of that day’s planing and paving. Briefly describe the sequencing of traffic control consistent with the proposed planing and paving sequence, and scheduling of placement of temporary pavement markings and channelizing devices after each day’s planing, and paving. 2. A copy of each intersection’s traffic control plan. 3. Haul routes from Supplier facilities, and locations of temporary parking and staging areas, including return routes. Describe the complete round trip as it relates to the sequencing of paving operations. 4. Names and locations of HMA Supplier facilities to be used. 5. List of all equipment to be used for paving. 6. List of personnel and associated job classification assigned to each piece of paving equipment. 7. Description (geometric or narrative) of the scheduled sequence of planing and of paving, and intended area of planing and of paving for each day’s work, must include the directions of proposed planing and of proposed paving, sequence of adjacent lane paving, sequence of skipped lane paving, intersection planing and paving scheduling and sequencing, and proposed notifications and coordinations to be timely made. The plan must show HMA joints relative to the final pavement marking lane lines. 5-04 Hot Mix Asphalt City of Renton 1-157 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 8. Names, job titles, and contact information for field, office, and plant supervisory personnel. 9. A copy of the approved Mix Designs. 10. Tonnage of HMA to be placed each day. 11. Approximate times and days for starting and ending daily operations. 5-04.3(14)B3 Pre-Paving and Pre-Planing Briefing At least 2 Working Days before the first paving operation and the first planing operation, or as scheduled by the Engineer for future paving and planing operations to ensure the Contractor has adequately prepared for notifying and coordinating as required in the Contract, the Contractor must be prepared to discuss that day’s operations as they relate to other entities and to public safety and convenience, including driveway and business access, garbage truck operations, Metro transit operations and working around energized overhead wires, school and nursing home and hospital and other accesses, other contractors who may be operating in the area, pedestrian and bicycle traffic, and emergency services. The Contractor, and Subcontractors that may be part of that day’s operations, must meet with the Engineer and discuss the proposed operation as it relates to the submitted planing plan and paving plan, approved traffic control plan, and public convenience and safety. Such discussion includes, but is not limited to: 1. General for both Paving Plan and for Planing Plan: a. The actual times of starting and ending daily operations. b. In intersections, how to break up the intersection, and address traffic control and signalization for that operation, including use of peace officers. c. The sequencing and scheduling of paving operations and of planing operations, as applicable, as it relates to traffic control, to public convenience and safety, and to other contractors who may operate in the Project Site. d. Notifications required of Contractor activities, and coordinating with other entities and the public as necessary. e. Description of the sequencing of installation and types of temporary pavement markings as it relates to planning and to paving. f. Description of the sequencing of installation of, and the removal of, temporary pavement patch material around exposed castings and as may be needed g. Description of procedures and equipment to identify hidden metal in the pavement, such as survey monumentation, monitoring wells, street car rail, and castings, before planning, see Section 5-04.3(14)B2. h. Description of how flaggers will be coordinated with the planing, paving, and related operations. i. Description of sequencing of traffic controls for the process of rigid pavement base repairs. j. Other items the Engineer deems necessary to address. 2. Paving – additional topics: a. When to start applying tack and coordinating with paving. 5-04 Hot Mix Asphalt City of Renton 1-158 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions b. Types of equipment and numbers of each type equipment to be used. If more pieces of equipment than personnel are proposed, describe the sequencing of the personnel operating the types of equipment. Discuss the continuance of operator personnel for each type equipment as it relates to meeting Specification requirements. c. Number of JMFs to be placed, and if more than one JMF how the Contractor will ensure different JMFs are distinguished, how pavers and MTVs are distinguished if more than one JMF is being placed at the time, and how pavers and MTVs are cleaned so that one JMF does not adversely influence the other JMF. d. Description of contingency plans for that day’s operations such as equipment breakdown, rain out, and Supplier shutdown of operations. e. Number of sublots to be placed, sequencing of density testing, and other sampling and testing. 5-04.3(15) Sealing Pavement Surfaces Apply a fog seal where shown in the plans. Construct the fog seal in accordance with Section 5-02.3. Unless otherwise approved by the Engineer, apply the fog seal prior to opening to traffic. 5-04.3(16) HMA Road Approaches HMA approaches shall be constructed at the locations shown in the Plans or where staked by the Engineer. The Work shall be performed in accordance with Section 5-04. 5-04.3(17) Construction Joint Sealing Transverse Joints - Joints between new and existing asphalt shall be sealed within five (5) calendar days after final rolling of the final lift of HMA. The seal shall be CSS-1 emulsified asphalt. The emulsified asphalt shall be placed in a way to be smooth and flush with roadway surface with minimal overbanding. This work is considered incidental to the bid item “HMA CL. ½” PG 58H-22”. 5-04.3(18) Incidental Uses for HMA Incidental uses for HMA shall consist of restoration and adjustment to paved areas and other such uses as directed by the Engineer. Incidental uses for HMA shall be measured and paid under the “HMA CL. ½” PG 58H-22” bid item for the overlay related HMA. 5-04.3(19) Vacant 5-04.3(20) Vacant 5-04.3(21) Temporary Pavement Marking The furnishing and installing of temporary pavement marking shall be as described in Section 8-23. Should the Engineer direct the Contractor to provide temporary pavement marking, it shall be short duration. This work is considered incidental to the bid item “Project Temporary Traffic Control”. 5-04.3(22) Speed Cushions Speed cushions shall be installed as shown in the Plans. Acceptable tolerances will be up to ¼ inch. Speed cushions shall be constructed with HMA CL 3/8 inch PG 58H-22 for 3 million design ESALs. Mixture acceptance will be by Visual Evaluation per 5-04.3(9)D. HMA Compaction Acceptance will be by Visual Evaluation per 5-04.3(10). 5-04 Hot Mix Asphalt City of Renton 1-159 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 5-04.4 Measurement HMA for ___ Cl. ___ PG ___ will be measured by the ton in accordance with Section 1-09.2, with no deduction being made for the weight of asphalt binder, mineral filler, or any other component of the mixture. If the Contractor elects to remove and replace mix as allowed by Section 5-04.3(11), the material removed will not be measured. Roadway cores will be measured per each for the number of cores taken. Preparation of untreated roadway will be measured by the mile once along the centerline of the main line Roadway. No additional measurement will be made for ramps, Auxiliary Lanes, service roads, Frontage Roads, or Shoulders. Measurement will be to the nearest 0.01 mile. Soil residual herbicide will be measured by the mile for the stated width to the nearest 0.01 mile or by the square yard, whichever is designated in the Proposal. Pavement repair excavation will be measured by the square yard of surface marked prior to excavation. Asphalt for prime coat will be measured by the ton in accordance with Section 1-09.2. Prime coat aggregate will be measured by the cubic yard, truck measure, or by the ton, whichever is designated in the Proposal. Asphalt for fog seal will be measured by the ton, as provided in Section 5-02.4. Longitudinal joint seals between the HMA and cement concrete pavement will be measured by the linear foot along the line and slope of the completed joint seal. Planing bituminous pavement will be measured by the square yard. Temporary pavement marking will be measured by the linear foot as provided in Section 8-23.4. Water will be measured by the M gallon as provided in Section 2-07.4. 5-04.5 Payment Payment will be made for each of the following Bid items that are included in the Proposal: “HMA for Trench Patch, Cl. ___ PG ___”, per ton. “HMA for Overlay, Cl. ___ PG ___”, per ton. The unit Contract price per ton for “HMA for Trench Patch, Cl. ___ PG ___” and “HMA for Overlay, Cl. ___ PG ___” shall be full compensation for all costs, including anti-stripping additive, incurred to carry out the requirements of Section 5-04 except for those costs included in other items which are included in this Subsection and which are included in the Proposal. “Preparation of Untreated Roadway”, per mile. The unit Contract price per mile for “Preparation of Untreated Roadway” shall be full pay for all Work described under 5-04.3(4) , with the exception, however, that all costs involved in patching the Roadway prior to placement of HMA shall be included in the unit Contract price 5-04 Hot Mix Asphalt City of Renton 1-160 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions per ton for “HMA Cl. ___ PG ___” which was used for patching. If the Proposal does not include a Bid item for “Preparation of Untreated Roadway”, the Roadway shall be prepared as specified, but the Work shall be included in the Contract prices of the other items of Work. “Preparation of Existing Paved Surfaces”, per mile. The unit Contract Price for “Preparation of Existing Paved Surfaces” shall be full pay for all Work described under Section 5-04.3(4) with the exception, however, that all costs involved in patching the Roadway prior to placement of HMA shall be included in the unit Contract price per ton for “HMA Cl. ___ PG ___” which was used for patching. If the Proposal does not include a Bid item for “Preparation of Untreated Roadway”, the Roadway shall be prepared as specified, but the Work shall be included in the Contract prices of the other items of Work. “Crack Sealing”, by force account. “Crack Sealing” will be paid for by force account as specified in Section 1-09.6. For the purpose of providing a common Proposal for all Bidders, the Contracting Agency has entered an amount in the Proposal to become a part of the total Bid by the Contractor. “Pavement Repair Excavation Incl. Haul”, per square yard. The unit Contract price per square yard for “Pavement Repair Excavation Incl. Haul” shall be full payment for all costs incurred to perform the Work described in Section 5-04.3(4) with the exception, however, that all costs involved in the placement of HMA shall be included in the unit Contract price per ton for “HMA for Pavement Repair Cl. ___ PG ___”, per ton. “Asphalt for Prime Coat”, per ton. The unit Contract price per ton for “Asphalt for Prime Coat” shall be full payment for all costs incurred to obtain, provide and install the material in accordance with Section 5-04.3(4). “Prime Coat Agg.”, per cubic yard, or per ton. The unit Contract price per cubic yard or per ton for “Prime Coat Agg.” shall be full pay for furnishing, loading, and hauling aggregate to the place of deposit and spreading the aggregate in the quantities required by the Engineer. “Asphalt for Fog Seal”, per ton. Payment for “Asphalt for Fog Seal” is described in Section 5-02.5. “Longitudinal Joint Seal”, per linear foot. The unit Contract price per linear foot for “Longitudinal Joint Seal” shall be full payment for all costs incurred to perform the Work described in Section 5-04.3(12). “Planing Bituminous Pavement”, per square yard. The unit Contract price per square yard for “Planing Bituminous Pavement” shall be full payment for all costs incurred to perform the Work described in Section 5-04.3(14). “Temporary Pavement Marking”, per linear foot. Payment for “Temporary Pavement Marking” is described in Section 8-23.5. “Water”, per M gallon. Payment for “Water” is described in Section 2-07.5. “Job Mix Compliance Price Adjustment”, by calculation. 5-04 Hot Mix Asphalt City of Renton 1-161 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions “Job Mix Compliance Price Adjustment” will be calculated and paid for as described in Section 5-04.3(9)C6. “Compaction Price Adjustment”, by calculation. “Compaction Price Adjustment” will be calculated and paid for as described in Section 5-04..3(10)D3. “Roadway Core”, per each. The Contractor’s costs for all other Work associated with the coring (e.g., traffic control) shall be incidental and included within the unit Bid price per each and no additional payments will be made. “Cyclic Density Price Adjustment”, by calculation. “Cyclic Density Price Adjustment” will be calculated and paid for as described in Section 5-04.3(10)B. Asphalt Cost Price Adjustment The Contracting Agency will make an Asphalt Cost Price Adjustment, either a credit or a payment, for qualifying changes in the reference cost of asphalt binder. The adjustment will be applied to partial payments made according to Section 1-09.9 for the following bid items when they are included in the proposal: “HMA for Trench Patch, Cl. ___ PG ___” “HMA for Overlay, Cl. ___ PG ___” The adjustment is not a guarantee of full compensation for changes in the cost of asphalt binder. The Contracting Agency does not guarantee that asphalt binder will be available at the reference cost. The Contracting Agency will establish asphalt binder reference costs twice each month and post the information on the Agency website at: https://wsdot.wa.gov/business-wsdot/how- do-business-us/public-works-contracts/payments-reporting/asphalt-binder-reference-cost. The reference cost will be determined using posted prices furnished by Poten & Partners, Inc. If the selected price source ceases to be available for any reason, then the Contracting Agency will select a substitute price source to establish the reference cost. Price adjustments will be calculated one time per month. No price adjustment will be made if the Current Reference Cost is within +/-5% of the Base Cost. Reference costs for projects located in Eastern versus Western Washington shall be selected from the column in the WSDOT website table labeled “Eastern”, or “Western”, accordingly. The adjustment will be calculated as follows: If the reference cost is greater than or equal to 105% of the base cost, then Asphalt Cost Price Adjustment = (Current Reference Cost – (1.05 x Base Cost)) x (Q x 0.056). If the reference cost is less than or equal to 95% of the base cost, then Asphalt Cost Price Adjustment = (Current Reference Cost – (0.95 x Base Cost)) x (Q x 0.056). Where: 5-04 Hot Mix Asphalt City of Renton 1-162 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Current Reference Cost is selected from the website table based on the “Date Effective” that immediately precedes the current month’s progress estimate end date. For work completed after all authorized working days are used, the adjustment will be based on the posted reference cost during which contract time was exhausted. Base Cost is selected from the website table based on the “Date Effective” that immediately precedes the contract bid opening date, and shall be a constant for all monthly adjustments. Q = total tons of all classes of HMA paid in the current month’s progress payment. “Asphalt Cost Price Adjustment”, by calculation. “Asphalt Cost Price Adjustment” will be calculated and paid for as described in this section. For the purpose of providing a common proposal for all bidders, the Contracting Agency has entered an amount in the proposal to become a part of the total bid by the Contractor. END OF SECTION 5-04 5-06 Temporary Restoration in Pavement Area City of Renton 1-163 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 5-06 TEMPORARY RESTORATION IN PAVEMENT AREA (******) Section 5-06 is new Section with subsections: 5-06.1 Description Pavement areas that have been removed by construction activities must be restored by the Contractor prior to use by vehicular or pedestrian traffic. These areas include paving over excavated roadway and utility trenches, to provide paved access to private properties, and ramps for pedestrian access. Temporary pavement shall be placed around trench plates or other devices used to cover construction activities in a manner that provides a smooth and safe transition between surfaces. 5-06.2 Materials Hot mix asphalt patching shall be used for all temporary trench patching within the traveled way. Cold mix asphalt is allowed for temporary paving outside the traveled way. The cold mix asphalt shall be EZ Street or approved equal. All temporary paving shall be placed with a minimum thickness of 2 inches. Temporary pavement material that does not form a consolidated surface after compaction shall be considered unsuitable and shall be removed from the site. Unsuitable temporary pavement shall be disposed of offsite. 5-06.3 Construction Requirements The Contractor shall maintain temporary asphalt patches during the work to the satisfaction of the governing road agency and the Engineer, until said patch is replaced with permanent hot mix patch. The completed pavement shall be free from ridges, ruts, bumps, depressions, objectionable marks, or other irregularities. The Contractor shall immediately repair, patch, or remove any temporary pavement that does not provide a flat transition between existing pavement areas. All temporary paving shall be approved by the Engineer before placement. Placement of temporary pavement without prior approval of the Engineer shall be considered as a benefit of the Contractor and no cost to the owner. Any areas of temporary pavement to be removed and replaced shall also be approved by the Engineer before placement. This work shall also include the removal of the temporary pavement prior to paving of final asphalt concrete pavement. The permanent hot mix asphalt patch shall be placed and sealed as specified in Section 5-04. All temporary asphalt pavement shall be removed from the site by the end of the project and shall not be used as permanent asphalt pavement or subgrade material. END OF SECTION 5-06 5-07 Pervious Concrete Pavement City of Renton 1-164 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 5-07 PERVIOUS CONCRETE PAVEMENT (******) Supplement Division 5 with the following: (January 31, 2023 APWA GSP) 5-07.1 Description This work shall consist of constructing a pervious cementitious pavement composed of portland cement concrete on a prepared subgrade or subbase in accordance with these Specifications and in conformity with the lines grades, thicknesses, and typical cross- sections shown in the Plans or established by the Engineer. 5-07.2 Materials Materials shall meet the requirements of the following sections: Portland Cement 9-01 Aggregates for Portland Cement Concrete 9-03.1 Premolded Joint Filler for Expansion Joints 9-04.1(2) Curing Materials and Admixtures 9-23 Water 9-25 Hydration stabilizing admixtures shall conform to the requirements of Section 9-23.6(3) or 9- 23.6(5). Synthetic Fibers for Concrete When specified, synthetic fibers to be included in the mix for portland cement concrete shall conform to the requirements of ASTM D 7508/7508M. Permeable ballast shall meet the requirements of Section 2-06. 5-07.3 Construction Requirements 5-07.3(1) Pervious Concrete Preconstruction Meeting Prior to the start of construction of the pervious concrete pavement section, including excavation of the pavement section, the Contractor shall coordinate, schedule and attend a preconstruction meeting for the pervious concrete pavement. The following are required to attend the meeting: 1. Contracting Agency representative. 2. General Contractor’s representative(s). 3. Engineer of Record for the pervious concrete pavement. 4. Concrete placement lead person(s). 5-07 Pervious Concrete Pavement City of Renton 1-165 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 5. Associated Subcontractor’s representative. 6. Pervious concrete Supplier’s representative. 7. Material Testing Laboratory’s representative. The meeting shall cover all aspects of the work including, but not limited to: 1. Submittals. 2. Short, and long term, schedule. 3. Inspection of the Work. 4. Protection of the Work. 5. Pervious concrete placement. 6. Curing. 7. Materials. 8. Specifications. 9. Testing. 10. Test panel and JMF. 11. Acceptance criteria. 5-07.3(2) Pervious Concrete Mix Design The Contractor shall provide a mix design for pervious concrete and shall submit the mix design to the Engineer in writing. Pervious concrete shall not be placed in the test panels without a mix design that has been reviewed and accepted by the Engineer. 5-07.3(2)A Mix Design Criteria The Contractor shall include the following elements and results of the described procedures in the proposed mix design: 1. A unique identification number for the mix design that is approved for the Job Mix Formula (JMF). 2. Portland cement and blended hydraulic cement shall meet the requirements of Section 9-01.2(1) except that Type III portland cement, Type IT and Type IL blended hydraulic cements, and rapid hardening hydraulic cement, shall not be used. 3. The cementitious content, including pozzolans, if used, shall be a minimum of 480 pounds per cubic yard. 5-07 Pervious Concrete Pavement City of Renton 1-166 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 4. The mix shall incorporate a hydration stabilizing admixture. 5. Synthetic microfibers may be utilized at the manufacturer’s recommended dosage rate. 6. Internal curing admixtures may be used at the dosage rate recommended by the manufacturer with the approval of the Engineer. 7. The water / cement ratio shall not exceed 0.35. 8. No more than 25 percent of portland cement in the mix, by weight, may be replaced by fly ash, ground granulated blast furnace slag, or a combination of both. 9. Coarse aggregate shall conform to Section 9-03.1(4), AASHTO Grading No.8. 5-07.3(2)B Job Mix Formula (JMF) The approved mix design established through the approved test panel becomes the JMF. 5-07.3(3) Submittals In accordance with Section 1-05.3, the Contractor shall submit a Type 3 Working Drawing with the following items to the Engineer prior to placing any pervious concrete pavement: 1. The source of all materials proposed for use in constructing pervious concrete pavement. 2. Batch weights for all constituents of one cubic yard of the proposed pervious concrete mix. 3. The saturated surface dry (SSD) specific gravity of all aggregates to be used in the proposed pervious concrete mix. 4. The proposed gradation of coarse aggregates used in pervious concrete. 5. The designed volume in cubic feet of all proposed components for one cubic yard of the proposed pervious concrete mix. 6. The design water / cement ratio of the proposed mix design. 7. The fresh density of the proposed pervious concrete mixture as determined by ASTM C1688. 8. Catalogue cuts and Certificates of Compliance for all proposed admixtures. 9. Mill Certification of the portland cement and pozzolans, if used, for the current lot to be used in the production of the proposed pervious concrete mix. The Contractor shall maintain this submittal throughout the duration of the project as lots change. 10. Current certification by the National Ready Mix Concrete Association (NRMCA) for the batch plant(s) to be used in the production of pervious concrete. 5-07 Pervious Concrete Pavement City of Renton 1-167 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 11. Current certifications by the NRMCA for the trucks to be used in transporting pervious concrete from the batch plant to the point of placement. 12. Qualification documentation for current certifications by the NRMCA for the Contractor’s personnel who will be installing pervious concrete. See Section 5-06.3(10)A. Valid acceptable documentation is the NRMCA issued wallet card or certification certificate. 13. At the time of delivery of the material to the site, the Contractor shall provide an original Certificate of Compliance for each truckload of pervious concrete. The Certificate of Compliance shall include information noted in Section 6-02.3(5)B. If the Certificate of Compliance from the concrete producer is not provided to the Engineer upon delivery, the truckload shall not be placed. 5-07.3(4) Equipment Equipment necessary for handling materials, mixing, delivering, and performing all parts of the Work, shall be in good repair, designed for the task, and operated by trained and qualified personnel. 5-07.3(4)A Batching Plant and Equipment Pervious concrete shall be centrally mixed. Batch plants for pervious concrete shall be prequalified in accordance with Section 6-02.3(4)A. Pervious concrete shall not be truck mixed or shrink mixed. 5-07.3(4)B Mixer Trucks Pervious concrete shall be transported to the location by truck mixers, non-agitating trucks shall not be used for the transport of pervious concrete. The drums on mixer trucks used to transport pervious concrete shall have fins that are not excessively worn, damaged or have excessive concrete buildup. Mixer trucks shall be prequalified in accordance with Section 6- 02.3(4)A. 5-07.3(4)C Side Forms Pervious concrete shall be placed in stationary forms. If pervious concrete is to be placed against a curb, previously placed concrete, or other existing structure, they may be used as a side form for the pervious concrete paving. Forms for pervious concrete shall be made of steel or wood and shall be in good condition and shall be capable of being anchored in place so that they will be true to grade, line, and slope. Forms shall be sufficiently rigid to maintain specified tolerances and capable of supporting concrete and mechanical concrete placing equipment. Forms shall be in good condition, straight, clean, free of debris, non- adherent rust, and hardened concrete. Set, align, and brace forms so that the hardened pavement meets the lines, grades and slopes as shown in the drawings. Apply form-release agent to the form face, which will be in contact with concrete, immediately before placing concrete. Form release agent shall not be applied to previously placed concrete. Previously placed pavement shall be protected from damage. 5-07 Pervious Concrete Pavement City of Renton 1-168 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions The Contractor shall inspect all forms for line, grade and slope. No pervious concrete shall be placed until the forms have been inspected by the Engineer. 5-07.3(4)D Finishing Equipment Finishing equipment for pervious concrete paving shall be designed for the intended work, shall be clean and in good operating condition. Equipment used for striking off the pervious concrete shall leave a smooth surface at the planned grades and shall not cause excess paste to be left on, or drawn to, the surface. If rollers or spinning screeds are used to compact, they shall be of sufficient weight and width to compact the pervious concrete uniformly through its depth and to grade without marring the surface. Equipment used for compacting pervious concrete shall not cause the surface to close or otherwise clog and shall produce a surface that is free of ridges or other imperfections. Tools used for producing joints shall be designed and manufactured for the purpose and shall not otherwise damage or mar the surface. Vibrating equipment shall not be used for placement or compaction of pervious concrete. 5-07.3(5) Measuring and Batching Materials Measuring and batching materials for pervious concrete pavement shall conform to the requirements of Section 5-05.3(4). 5-07.3(6) Acceptance For acceptance, pervious concrete pavement will be divided into lots as follows: A single lot is represented by the lesser of: one day’s production or 360 square yards of pervious concrete in place. Where the Contractor has more than one crew placing pervious concrete, individual lots will be associated with each crew. Representative lot size will be determined to the nearest square yard. If no sample is taken on a day, that day’s quantities may be included in the next or previous day's lot(s). The Engineer may isolate an area of pervious concrete within a lot that does not meet Contract requirements and the area will be considered a separate lot for purposes of acceptance. Lots determined in this manner shall be extended as necessary such that they are bounded by planned joints. Acceptance of a lot of pervious concrete pavement will be based on the following criteria: 1. Grade: Conform to the dimensions, lines, slopes and grades specified on the plans. Pervious concrete pavement shall be true to planned grades and cross slopes and shall not deviate from grade more than ¼ inch in ten feet. 2. Conformance to JMF: The pervious concrete pavement used shall conform to the mix design for the JMF within the limits as set forth in Section 6-02.3(5)C and as determined from the accepted test panel. 3. Compacted Depth and Average Hardened Density: After a minimum of seven calendar days of curing, obtain three random core samples from each lot by removing cores in accordance with ASTM C42/C42M and measure the length of each core in accordance with ASTM C1542/1542M. No single core length shall be deficient by more than 3/4 inch of the design depth as shown on the plans. The average length of all cores from a lot shall be within minus 3/8 inch of the design depth as shown on the plans. After 5-07 Pervious Concrete Pavement City of Renton 1-169 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions the length is measured, measure hardened density of each core in the lot in accordance with ASTM C1754/C1754M. The hardened density from a lot must be within +/- 5 percent of the average hardened density of the JMF (approved test panel). Core holes shall be filled by the Contractor with pervious concrete meeting the JMF and shall match adjacent pavement color, texture and grade. 4. Infiltration Rate: The infiltration rate at any single test point shall not be less than 100 inches per hour when tested in accordance with Section 5-06.3(6)A. 5. Fresh Density: The fresh density of each lot will be measured by ASTM C1688 at the point of placement shall be within +/- five pounds per cubic foot of the fresh density determined from the JMF (approved test panel). 6. Appearance: The appearance of each lot shall be consistent with the JMF (approved test panel). The pervious concrete pavement shall have a consistent surface texture, shall not be raveled, shall be free of ridges or other surface imperfections, shall have joints that are in the specified location and are constructed per specification, and shall be free of cracks. Testing for acceptance will be performed by the Engineer. 5-07.3(6)A Infiltration Rate of the Placed Pavement The infiltration rate of the pervious concrete shall be determined at four random locations within each lot. The locations for conducting infiltration tests will be determined by the Engineer. The Contractor shall coordinate and schedule testing with the Engineer a minimum of five Working Days in advance of the infiltration testing. The infiltration rate on the finished surface will be determined in accordance with ASTM C1701, except the infiltration ring diameter may be 12-inches to 24-inches in diameter. The infiltration test will be conducted after a minimum of seven calendar days of curing has occurred. If the measured infiltration rate is less than 100 inches/hour at any test location, the Contractor may request in writing that the Engineer may perform additional infiltration tests for the purpose of assessing overall infiltration performance and/or determining a defective lot in accordance with Section 5-06.3(6). The determination of a defective lot, or lots, and the extent(s), will be determined by the Engineer. The cost of additional testing shall be the responsibility of the Contractor at a cost of ***$$1$$*** per test. 5-07.3(7) Rejection Pervious concrete may be rejected by the Contractor for any reason at no expense to the Contracting Agency. A truckload of pervious concrete will be rejected if the Certificate of Compliance in accordance with 5-06.3(3) is not provided at the time of delivery of the material to the site. Pervious concrete that is improperly cured or is allowed to freeze during the initial seven day curing period will be rejected. A lot of pervious concrete pavement that does not meet the requirements in Section 5- 06.3(6) will be rejected. 5-07 Pervious Concrete Pavement City of Renton 1-170 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions During the removal process of the rejected pavement, the Contractor shall implement measures to protect the adjacent pervious concrete pavement to remain. If pervious concrete pavement becomes damaged by the Contractor during removal of the rejected pavement, then additional pavement areas may be rejected by the Engineer to the next planned joint. Fresh pervious concrete that has been rejected by the Engineer, or the Contractor, shall not be placed, or shall be removed and replaced, at no additional cost. 5-06.3(8) Mixing Pervious Concrete Batch, mix and deliver pervious concrete in compliance with ASTM C94/C94M except that pervious concrete shall not be transit mixed or shrink mixed. If water is added to the mix after it is delivered on site, the fresh density for the pervious concrete shall meet the requirements of the approved JMF referenced in this section. 5-07.3(8)A Limitations of Mixing Pervious Concrete Mixing and placing concrete shall be discontinued when a descending air temperature in the shade away from artificial heat reaches 40º F and shall not be resumed until an ascending air temperature in the shade and away from artificial heat reaches 40ºF. The temperature of fresh pervious concrete shall not be less than 55° F, nor more than 90°F when placed. Pervious concrete shall not be mixed with aggregates having a temperature less than 32°F. 5-07.3(9) Subgrade Preparation and Subbase Prepare and protect subgrade in accordance with Section 2-06. Prepare and protect subbase in accordance with Section 4-04. 5-07.3(10) Placing, Spreading, Finishing, Edging, Tolerances and Curing Pervious concrete shall not be placed, compacted or finished when the natural light is inadequate, unless an adequate lighting system is in operation. The adequacy of light will be determined by the Engineer. Wet the surface of the subbase with water immediately before placing pervious concrete. Deposit concrete either directly from the transporting equipment or by conveyor on the subbase, unless otherwise specified. Pervious concrete shall not be placed on frozen subbase. Deposit concrete between the forms to an approximately uniform height. Spread the concrete using mechanized equipment or hand tools. Strike off concrete between forms using a form-riding paving machine, roller screed, or spinning screed. Compact concrete to a uniformly dense structure without clogging the surface with paste. 5-07 Pervious Concrete Pavement City of Renton 1-171 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Finish the pervious concrete to a uniform, open-textured surface to match the appearance of the approved JMF test panel. Edges shall be hand tooled to a radius of ¼ inch. Curing materials for pervious concrete shall be in place no more than 20 minutes of discharge onto the subbase. The pavement surface and all exposed edges shall be completely covered with sheet curing materials conforming to Section 9-23.1. The curing material shall be secured at all exterior edges and interior laps without damaging the pervious concrete. The method of securing the curing material shall prevent wind from removing the sheet and from blowing under the sheet across the surface of the concrete. Cure the pavement continuously for a minimum of seven days. All traffic (foot and vehicular), staging, stockpiling or other work shall be kept off of the pervious concrete pavement during the curing period. 5-07.3(10)A Contractor’s Qualifications The contractor shall employ no less than one National Ready Mixed Concrete Association (NRMCA) certified Pervious Concrete Craftsman for each crew, who must be on site, over- seeing the work during all pervious concrete placement; or employ no less than three NRMCA Certified Pervious Concrete Installers per crew, who must be on site working during each pervious concrete placement. The minimum number of certified individuals must be present on each crew for every pervious concrete placement, including the test panel placements, and a certified individual must be in charge of the placement crew and procedures. If personnel used for installing pervious concrete are unqualified, inattentive to quality, or unsafe, they shall be removed or reassigned from installation of pervious concrete at the written request of the Engineer. 5-07.3(10)B Test Panel Production placement of pervious concrete shall not occur until the Contractor has completed a test panel of pervious concrete pavement that meets all of the acceptance criteria described herein and accepted by the Engineer. The Contractor shall construct a test panel utilizing a minimum of seven cubic yards of pervious concrete. If multiple pavement section depths are shown on the plans, a test panel shall be constructed for each pavement section depth/thickness. The width of the test panel shall have a width no smaller than the greatest width to be constructed on the project. The test panel(s) shall include at least one joint and at the spacing specified on the plans and specifications. Test panels may be placed non-contiguously. The test panel(s) shall be equivalent and representative of the production pervious concrete pavement in all aspects including subbase, depth, joints, method of placement, curing, and preparation. Construction and evaluation of the test panel shall occur as follows: 1. Notify the Engineer at least ten Working Days before installing pervious concrete test panels. 2. Coordinate the location of the test panel with the Engineer. 5-07 Pervious Concrete Pavement City of Renton 1-172 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 3. Install the test panel in accordance with the Specifications and Plans. 4. Notify the Engineer when the test panel is ready for inspection and acceptance testing. 5. Acceptance testing will be conducted in accordance with Section 5-06.3(6). 6. Remove, replace, and dispose of any unsatisfactory portions of test panels as determined by the Engineer, at no additional cost to the Contracting Agency. Failure to install acceptable test panel(s) of pervious concrete will indicate an unapproved test panel(s) and require new test panel(s) for review. The completed and approved test panel(s) shall establish the JMF. The approved test panel shall meet the requirements of Section 5-06.3(6). Upon successful completion of the infiltration test, unless otherwise determined by the Engineer, three cores will be obtained in accordance with ASTM C42 and will be used to validate the mix design under the acceptance criteria of Section 5-06.3(6). Cores shall be taken at the same location where the infiltration test was conducted. The average hardened density of the cores shall be the hardened density used for the JMF. The hardened density of each core used for determining the JMF shall be within five percent of the mean value of the three cores. Core holes shall be filled by the Contractor with pervious concrete meeting the proposed JMF and shall match adjacent pavement color, texture and grade. The completed and accepted test panels shall be maintained and protected throughout the duration of the Work and may not be demolished and disposed of without written permission from the Engineer. If the test panel(s) is incorporated into the Work, it shall remain in place accepted as a single lot. 5-07.3(11) Joints Construct joints at the locations, depths and with horizontal dimensions indicated on plans unless noted otherwise in this section. Joints shall be of three types: construction, contraction, and isolation. Construction joints shall be formed at the end of a day’s work or when necessary to stop production for any reason. Contraction joints shall be used to control random cracking. Isolation joints shall be used where the pervious concrete abuts existing facilities or where shown on the Plans. 5-07.3(11)A Construction Joints Construction joints shall be located at the location of a planned contraction or isolation joint. Construction joints are to be formed by placing a header between the forms, at right angles, to the full depth of the finished pervious concrete, and set to the height of the forms. Pervious concrete shall be placed against the header and compacted and finished as normal, including edging. The header shall remain in place until paving resumes. 5-07.3(11)B Contraction Joints 5-07 Pervious Concrete Pavement City of Renton 1-173 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Contraction joints (transverse and longitudinal) shall be constructed at the locations and intervals shown in the Plans. Contraction joints shall be a depth of 1/3 the thickness of the pervious concrete pavement section and have a width of no more than 1/4 inch. Plastic formed contraction joints shall be tooled on both sides of the joint with a radius of ½ inch. Tool joint to the depth and width in fresh concrete immediately after the concrete is compacted. Contraction joints may be saw cut. Sawcutting shall occur as soon as the pervious concrete surface can be traversed without marring and when saw cutting can be performed without raveling or dislodging aggregate. Curing measures shall only be removed to the extent that saw cutting may be performed and shall be immediately replaced when the joint is cut. Slurry from saw cutting shall be vacuumed immediately with the saw cutting operation and shall not be allowed to accumulate or otherwise infiltrate or clog the pervious concrete. The minimum width of a saw cut joint shall be 1/8 inch. 5-07.3(11)C Isolation Joints Isolation joints shall be placed where the pervious concrete abuts existing structures or where shown on the Plans. Isolation joints shall continue through the depth of the pervious concrete using a 3/8 inch premolded joint filler meeting the requirements of Section 9- 04.1(2). Isolation joints may be formed by forming a construction joint and affixing the premolded joint filler against one side of the joint and placing fresh pervious concrete against it. Isolation joints and filler shall be flush with the surrounding pervious concrete and shall not deviate from the acceptance criteria for smoothness as shown in Section 5-06.3(6). The edge of the pervious concrete adjacent the premolded joint filler shall be hand tooled with a ½ inch radius. 5-07.3(12) Cold Weather Work When concrete is being placed and the ambient air temperature is expected to drop below 35°F during the day or night, the Contractor shall protect the concrete from freezing. The Contractor shall submit for approval a Cold Weather Plan prior to placing concrete when ambient air temperature below 35°F is anticipated, or when requested by the Engineer. When a Cold Weather Plan is required, pervious concrete shall not be placed without an approved Cold Weather Plan. Under the Cold Weather Plan, the Contractor shall provide a sufficient supply of straw, hay, blankets, or other suitable blanketing material and spread it over the pavement to a sufficient depth to prevent freezing of the concrete. The blanket material shall be placed on top of the sheet curing materials and covered with a layer of burlap or plastic sheeting, weighted or anchored to prevent the wind from displacing the insulation. At no time during the curing period shall the temperature of the pervious concrete be allowed to drop below 55°F. The Engineer may require recording thermometers if daytime temperature is below 50°F. The curing period may be extended by the Engineer if the pervious concrete temperature has been allowed to drop below 55°F. The cold weather protection shall be maintained for seven days. 5-07 Pervious Concrete Pavement City of Renton 1-174 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 5-07.3(13) Protection of Pervious Concrete Pavement As part of the Construction Stormwater Pollution Prevention plan (SWPPP), rain runoff, surface water of any kind and sediment shall be prevented from entering the area of pervious concrete construction, including excavation, until the pervious concrete application has cured, testing is completed and determined to meet specifications, and the adjacent areas that sheet flow/drain onto the pervious concrete are permanently stabilized from erosion and/or plantings are established. Once pavement is placed, flow diversion measures and protective covers shall continually be maintained until adjacent areas are permanently stabilized and concrete has been accepted. Construction vehicular traffic shall not be allowed onto the pervious concrete pavement. The pavement may be opened to vehicular traffic after the pervious concrete has cured for at least seven uninterrupted days, all testing has been completed, and the pavement has been accepted by the Engineer. The Contractor shall take every precaution to protect the pervious concrete pavement from damage, including the introduction of foreign materials to the surface, throughout the course of the work. Pervious concrete pavement that is damaged or has been adversely impacted by the introduction of foreign materials shall be remediated to the satisfaction of the Engineer or rejected and replaced to the nearest joint. 5-07.4 Measurement (******) See Sections 1-09.14(2), for summary of measurement. 5-07.5 Payment (******) See Sections 1-09.14(2), for summary of pavement. END DIVISION 5 DIVISION 6 STRUCTURES City of Renton 1-175 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 6-03 STEEL STRUCTURES 6-03.2 Materials (******) Supplement this section as follows: Materials shall meet the requirements of the following sections: Structural Sections (Plates, angles channels) ASTM A36, Galvanized Structural Tubes ASTM A500, Grade B, Galvanized Bolts A307, Galvanized per A153 Anchor Rods A36, Galvanized per A153 Nuts & Washers A563, Galvanized per A153 6-03.3 Construction Requirements 6-03.3(7) Shop Plans (******) Supplement this section as follows: Prior to fabrication of the steel HSS structures, the Contractor shall submit 3 copies of shop drawings of the structure to the Engineer for approval. As a minimum the shop drawings shall include: Steel material type & member sizes Finishes Layout drawings Dimensional drawings Hardware details & specifications 6-03.3(11) Workmanship and Finish (******) Supplement this section as follows: All steel members, shapes, bolts, and accessories exposed to weather, earth, or moisture shall be hot dip galvanized unless otherwise noted. 6-03.3(25) Welding (******) Delete and replace this section as follows: All shop and field welding shall be in accordance with AWS D 1.1. All welding shall be performed by Washington Association of Building Officials (WABO) certified welders. END OF SECTION 6-03 END DIVISION 6 DIVISION 7 DRAINAGE STRUCTURES, STORM SEWERS, SANITARY SEWERS, WATER MAINS, AND CONDUITS City of Renton 1-176 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 7-01 DRAINS 7-01.1 Description (******) Revise the second paragraph in this section as follows: This Work consists of constructing drain pipe in accordance with the Plans, these Specifications and Standard Plans, at the locations staked. 7-01.2 Materials (******) Revise the second paragraph in this section as follows: Drain pipes may be concrete, zinc coated (galvanized) corrugated iron with Asphalt Treatment I, aluminum coated (aluminized) corrugated iron with Asphalt Treatment I, zinc coated (galvanized) steel with Asphalt Treatment I, corrugated aluminum alloy, polyvinyl chloride (PVC), or corrugated polyethylene (PE) at the option of the Contractor unless the Plans specify the type to be used. 7-01.3 Construction Requirements 7-01.3(1) Drain Pipe (******) Supplement this section as follows: PVC drainpipe shall be jointed with a bell and spigot joint using a flexible elastomeric seal as described in Section 9-04.8. The bell shall be laid upstream. PE or ABS drainpipe shall be jointed with snap-on, screw-on, or wraparound coupling bands as recommended by the manufacturer of the tubing. 7-01.4 Measurement (******) Supplement this section as follows: When the Contract does not include "Structure Excavation Class B" or "Structure Excavation Class B Including Haul" as a pay item all costs associated with these items shall be included in other contract pay items. END OF SECTION 7-01 7-02 Culverts City of Renton 1-177 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 7-02 CULVERTS 7-02.2 Materials (******) Revise the second paragraph in this section as follows: Where steel or aluminum are referred to in this section in regard to a kind of culvert pipe, pipe arch, or end sections, it shall be understood that steel is zinc coated (galvanized) with Asphalt Treatment I or aluminum coated (aluminized) corrugated iron or steel, and aluminum is corrugated aluminum alloy as specified in Sections 9-05.4 and 9-05.5. Where plain or reinforced concrete, steel, or aluminum are referred to in Section 7-02 it shall be understood that reference is also made to PVC. END OF SECTION 7-02 7-04 Storm Sewers City of Renton 1-178 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 7-04 STORM SEWERS 7-04.2 Materials (******) Supplement the first paragraph list in this section as follows: Unless a pipe material is specifically called out on the Plans. Storm sewer pipes 12-inches in diameter or larger shall be polypropylene. Storm sewer pipes smaller that 12-inch diameter shall be corrugated polyethylene pipe. Materials shall meet the following requirements: Size Pipe Material Allowed Specification 4-8” Corrugated Polyethylene Storm Sewer Pipe 9-05.20 12-36” Polypropylene Storm Sewer Pipe Ductile Iron Pipe C900 PVC Storm Sewer Pipe (AWWA) 9-05.24(1) 9-05-13 9-30.1(5)A Where bends are specifically called out on the plans, they shall be of the same material and manufacturer as the main pipe and meet the manufacturer’s recommendations. Supplement the second paragraph of this section as follows: The Contractor shall require pipe suppliers to furnish certificates signed by their authorized representative, stating the specifications to which the materials or products were manufactured. The Contractor shall provide 2 copies of these certifications to the Engineer for approval. Certificates showing nonconformance with the Contract shall be sufficient evidence for rejection. Approval of certificates shall be considered only as tentative acceptance of the materials and products, and such action by Engineer will not relieve Contractor of his/her responsibility to perform field tests and to replace or repair faulty materials, equipment, and/or workmanship and Contractor’s own expense. Supplement this section as follows: Dense foam shall meet 9-05.52 of these Special Provisions. Direct Pipe Tee Connections Direct pipe tee connections for use in gravity-flow storm drainage direct connections to pipe shall be by Nyloplast PVC fitting, as manufactured by Nyloplast and shall conform to ASTM D1784. Nyloplast product shall provide a watertight connection which conforms to ASTM D3212 for joints and drain and sewer plastic pipe using flexible elastomeric seals conforming to ASTM F 477. The PVC glue and primer used in the assembly of components shall conform to ASTM D 2564 and ASTM F 656. 7-04 Storm Sewers City of Renton 1-179 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 7-04.3 Construction Requirements 7-04.3(1) Cleaning and Testing 7-04.3(1)A General (******) Supplement this section as follows: Before testing begins and in adequate time to obtain approval through submittal process, prepare and submit test plan for approval by Engineer. Include testing procedures, methods, equipment, and tentative schedule. Obtain advance written approval for any deviations from Drawings and Specifications. Repair, correct, and retest sections of pipe which fail to meet specified requirements when tested. Perform testing as work progresses. Schedule testing so that no more than 1000 linear feet of installed pipeline remains untested at one time. Perform testing under observation of Engineer or Inspector. Schedule testing during no rain. Plug the lower end of the pipe if needed to test pipe. All pipe larger than 30-inch diameter shall have joints individually tested for Joint Tightness. Prior to final backfill, all joints shall be individually tested using low-pressure air per ASTM C1103. For the installation of any flexible pipe larger than 30-inches in diameter, the Contractor shall retain the services of a pipe manufacturer representative, knowledgeable in the installation methods and practices for the specific pipe product used on this project, as well as on the installation practices for flexible pipelines in general. The manufacturer’s representative shall be present full time on site during the construction of the first 300 feet of pipe installation, and part-time, as required, thereafter until the entire pipeline installation is complete. The manufacturer’s representative shall observe pipe foundation, pipe installation, placement and compaction of pipe zone bedding and backfill, and testing procedures. The manufacturer’s representative shall notify Engineer and Contractor of any non-conforming installation, identifying the manufacturer recommended corrective action(s), within 24 hours of such occurrence. All flexible pipe shall be tested for maximum pipe deflection by pulling a rigid mandrel through the entire (i.e., 100%) flexible pipe length installed. Maximum deflection shall not exceed 5%. Mandrel testing shall conform to ASTM D3034, and be performed no sooner than 30 days after backfilling and prior to final acceptance testing of the segment. Submit test results to the Engineer. Rigid mandrel shall have outside diameter (O.D.) equal to 95 percent of inside diameter (I.D.) of pipe. Inside diameter of pipe, for purpose of determining outside diameter of mandrel, shall be average outside diameter minus two minimum wall thicknesses for O.D. controlled pipe and average inside diameter for I.D. controlled pipe, dimensions shall be per appropriate standard. Statistical or other "tolerance packages" shall not be considered in mandrel sizing. Rigid mandrel shall be constructed of metal or rigid plastic material that can withstand 200 psi without being deformed. Mandrel shall have nine or more "runners" or "legs" as long as total number of legs is odd number. Barrel section of mandrel shall have length of at least 75 percent of inside diameter of pipe. Rigid mandrel shall 7-04 Storm Sewers City of Renton 1-180 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions not have adjustable or collapsible legs which would allow reduction in mandrel diameter during testing. Provide and use proving ring for modifying each size mandrel. Furnish "proving ring" with each mandrel. Fabricate ring of 1/2-inch-thick, 3-inch-wide bar steel to diameter 0.02 inches larger than approved mandrel diameter. If a rigid mandrel is not available, the Contractor may substitute a round steel bar meeting #3 above. 7-04.3(2) Abandon in Place Existing Storm Sewer Pipes (******) This is a new section as follows: Where it is defined on the plan set or where designated by the engineer, existing storm sewer pipes shall be abandoned in place. Pipes shall be abandoned with 3,000 psi cement concrete plugs reaching into the pipe at least 12-inches in depth at each end where exposed or accessible. Where the abandoned in place pipe connects to an active existing manhole the pipe shall be filled flush with the pipe end or flush with the inside wall of the existing manhole. The mix design and method of installation shall be provided to the Project Engineer at least seven (7) days prior to planning construction and approved by the Engineer prior to beginning the operation. 7-04.3(3) CCTV Inspection (******) This is a new section as follows: All storm drain main lines constructed as part of this project (public and private) shall be inspected by the use of closed-circuit television (CCTV) before substantial completion. The costs incurred in making the inspection shall be paid for under “CCTV Inspection” unless otherwise specified in the contract documents. All CCTV inspections for storm drain lines shall conform to Section 7-17.3(2)H. The Contractor shall bear all cost incurred in correcting any deficiencies found during television inspection including the cost of any additional television inspection that may be required by the Engineer to verify the correction of said deficiency. The Contractor shall be responsible for all costs incurred in any television inspection performed solely for the benefit of the Contractor. 7-04.3(4) Direct Pipe Connections (******) This is a new section as follows: Field Pipe and Joint Performance: To assure water tightness, field performance verification may be accomplished by testing in accordance with ASTM F2487, ASTM F1417 or ASTM C1103. Appropriate safety precautions must be used when field-testing any pipe material. Contact the manufacturer for recommended leakage rates. 7-04 Storm Sewers City of Renton 1-181 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Installation shall be accordance with the manufacturer’s recommended installation guidelines. Backfill around the pipe fittings for service connection shall be, at a minimum, of the same material type and compaction level as specified for the mainline pipe installation. 7-04.3(5) Temporary Stormwater Diversion (******) This is a new section as follows: It shall be the Contractor’s responsibility to maintain operation of the existing storm sewer system throughout the duration of the project without any disruption of service until the new storm drain has been accepted by the City to receive stormwater flows, and connections are made between the existing and new storm based on scheduling approved by the Engineer. A temporary stormwater diversion shall be capable of bypassing at least the 2-year peak flow during construction. The 2-year peak flow at various locations shall be provided in the contract documents or, at minimum, the flow rates found in the following table. Existing Storm Water Pipe Diameter (in) Minimum Temporary Bypass Flow (gpm) 6 20 8 50 10 80 12 130 15 240 18 400 21 600 24 900 30 1,500 36 2,500 48 5,400 The Contractor shall submit proposed methods for providing the diversions to the Engineer for approval prior to construction. The diversions shall have the least impact on property owners and traffic flow through the site. The diversions shall be installed, operated, and maintained only when needed where the existing storm drain system must be demolished to allow construction of the new system. Where shown on the Plans, Contractor shall time work of bypasses during period of anticipated no or little rain. If bypass pumping is provided, it shall be scheduled for continuous operation with backup equipment available at all times for periods of maintenance and refueling or failure of the primary bypass pump(s) or diversion system. The Contractor shall submit a Temporary Stormwater Diversion Plan in accordance with Section 1-05. The Contractor’s bypass operation shall be sized to handle, at a minimum, the flow rates specified above. The Contractor’s plan shall be reviewed by the City before the plan is implemented. The review of the flow diversion plan shall, as well as the Contractor’s proposed size of the bypass, in no way relieve the Contractor of his responsibility to provide a bypass system that conveys encountered flows without property 7-04 Storm Sewers City of Renton 1-182 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions damage or damage to the project or construction area. As risk associated with sizing the bypass and impacts to construction is born by the Contractor. END OF SECTION 7-04 7-05 Manholes, Inlets, and Catch Basins City of Renton 1-183 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 7-05 MANHOLES, INLETS, AND CATCH BASINS 7-05.2 Materials (******) Supplement this section as follows: The BioPod water quality systems shall be BioPod Biofilters as manufactured by Oldcastle Infrastructures, Inc., of type and configuration indicated in the Plans. The BioPod units must have current GULD for Enhanced (Metals) Treatment from the Washington Department of Ecology. Oldcastle Infrastructures, Inc. 7100 Longe St, Suite 100 Stockton, CA 95206 Tel: 1 888 965 3227 7-05.3 Construction Requirements (******) Supplement this section as follows: All manholes shall be in accordance with the Standard Plans unless pre-approved City or WSDOT details do not exist, then Shop Drawings and Calculations shall be submitted in accordance with Section 9-05.50. 7-05.3(1) Adjusting Manholes and Catch Basins to Grade (******) Supplement this section as follows: The Contractor shall construct manholes to provide adjustment space for setting cover and casting to a finished grade as shown on the Construction Plans. Manhole ring and covers shall be adjusted to the finished elevations per standard plans prior to final acceptance of the Work. Manholes in unimproved areas shall be adjusted to 6” above grade. Adjustment in unpaved streets Manholes, catch basins, and similar structures in areas to be surfaced with crushed rock or gravel shall be constructed to a point approximately eight inches below the subgrade and covered with a temporary wood cover. Existing manholes shall be cut off and covered in a similar manner. The Contractor shall carefully reference each manhole so that they may be easily found upon completion of the street Work. After placing the gravel or crushed stone surfacing, the manholes and manhole castings shall be constructed to the finished grade of the roadway surface. Excavation necessary for bringing manholes to grade shall center about the manhole and be held to the minimum area necessary. At the completion of the manhole adjustment, the void around the manhole shall be backfilled with materials which result in the section required on the typical roadway section, and be thoroughly compacted. Adjustment in cement concrete pavement Manholes, catch basins, and similar structures shall be constructed and adjusted in the same manner as outlined above except that the final adjustment shall be made and cast iron 7-05 Manholes, Inlets, and Catch Basins City of Renton 1-184 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions frame be set after forms have been placed and checked. In placing the concrete pavement, extreme care shall be taken not to alter the position of the casting in any way. Adjustment in asphalt concrete pavement Manholes shall not be adjusted until the pavement is completed, at which time the center of each manhole shall be carefully relocated from references previously established by the Contractor. The manhole shall then be brought to proper grade utilizing the same methods of construction as for the manhole itself. The cast iron frame shall be placed on the concrete grade rings and mortar. The complete patch shall match the existing paved surface for texture, density, and uniformity of grade. The joint between the patch and the existing pavement shall then be carefully painted with hot asphalt cement or asphalt emulsion and shall be immediately covered with dry paving sand before the asphalt cement solidifies. Adjustment of inlets The final alignment and grade of cast iron frames for new and old inlets to be adjusted to grade will be established from the forms or adjacent pavement surfaces. The final adjustment of the top of the inlet will be performed in similar manner to the above for manholes. On asphalt concrete paving projects using curb and gutter section, that portion of the cast iron frame not embedded in the gutter section shall be solidly embedded in asphalt also. The concrete shall extend a minimum of six inches beyond the edge of the casting and shall be left 2 inches below the top of the frame so that the wearing course of asphalt concrete pavement will butt the cast iron frame. The existing concrete pavement and edge of the casting shall be painted with hot asphalt cement. Adjustments in the inlet structure shall be constructed in the same manner and of the same material as that required for new inlets. The inside of the inlets shall be mortared. Adjustment in monuments and cast-iron frame and cover Monuments and monument castings shall be adjusted to grade in the same manner as for manholes. Adjustment in valve box castings Adjustments of valve box castings shall be made in the same manner as for manholes. 7-05.3(2) Abandon Existing Manholes (******) Revise this section as follows: Where it is required that an existing manhole or catch basin be abandoned, the structure shall be broken down to a depth of at least 4 feet below the revised surface elevation, all connections plugged according to 7-08.3(4), unless another method is specified on the plan set or by the engineer; the manhole base shall have a minimum of four 2-inch drainage holes in the bottom of the manhole to prevent standing water, unless filled with CDF; and the manhole filled with sand or gravel borrow as per section 9-03.14(1) and compacted to 90 percent density as specified in Section 2-03.3(14)C or filled with CDF per Engineers approval. Debris resulting from breaking the upper part of the manhole may be mixed with the sand subject to the approval of the Engineer. The ring and cover shall be salvaged, and all other surplus material disposed of. 7-05 Manholes, Inlets, and Catch Basins City of Renton 1-185 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Notify Project Engineer if pipes are found which are not identified on the plan set and require plugging for manhole abandonment. (See Section 9-03.22 for Controlled Density Fill requirements) 7-05.3(3) Connections to Existing Manholes (******) Supplement this section as follows: Where shown on the Plans, new storm drain pipes shall be connected to existing line, catch basin, curb inlets and, or, manholes. The Contractor shall be required to core drill into the structure, shape the new pipe to fit and re-grout the opening to provide watertight seal. Where directed by the Engineer, or where shown on the Plans, additional structure channeling will be required. Where shown on the Plans, new sewer pipes shall be connected to existing manholes and sewer pipes. Connections to existing sanitary sewer manholes shall be core drilled. Couplings shall be equal to “Kor-n-Seal” boots or GPK sanded adapters. Existing sanitary sewer manholes shall be cleaned, repaired, and re-channeled as necessary to match the new pipe configuration and as shown on the Construction Plans. Connections of new structures to existing storm sewer pipes shall be made with a ductile iron sleeve-style coupling, ROMAC or approved equal, conforming to ASTM C219 and sized specifically for the pipe size and materials being connected. Connections to existing storm sewer manholes shall be core drilled. Couplings shall be equal to “Kor-n-Seal” boots. Existing sanitary sewer manholes shall be cleaned, repaired, and re-channeled as necessary to match the new pipe configuration and as shown on the Construction Plans. A "connection to existing" item will be allowed at any connection of a new line to an existing structure. No "connection to existing" will be accepted at the location of new installation, relocation and adjustment of line manholes, catch basins, or curb inlets. Any damage to existing pipe or structure that is to remain in place resulting from the Contractor's operations shall be repaired or replaced at her/his own expense. 7-05.3(4) Drop Manhole Connection (******) Delete and replace this section as follows: Drop manhole connections shall be constructed in accordance with the Plans. All pipes and fittings shall be similar size and material as incoming mainline. Drop bowl and hood shall be Reliner Drop Bowl, or approved equal, constructed of marine grade fiberglass and mounted directly to the manhole wall. The bowl shall be designed by the manufacturer and sized such that full pipe flow from the incoming pipe can pass through a drop pipe of equal or greater size without overtopping the bowl. The hood shall be installed with nuts and bolts such that it may be easily removed if required. Pipe supports, nuts, bolts, and other appurtenances required to install the drop bowl, drop pipe, and flexible coupling shall be Grade 316 stainless steel. 7-05 Manholes, Inlets, and Catch Basins City of Renton 1-186 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 7-05.3(5) Manhole Coatings (******) This is a new section as follows: All interior surfaces of new precast concrete sanitary sewer manholes shall be shop coated in accordance with 9-08.9(1). Coating shall be applied in accordance with manufacturer’s recommendations in a controlled environment before arriving on site. Field applications of interior coating will not be accepted. 7-05.3(6) BioPod Units (******) This is a new section as follows: The BioPod units must remain off-line during construction and not introduce construction stormwater runoff into the unit until activation. The installation of the units shall follow the manufacturer's recommendations as defined in the Shop Drawing submittal. Each BioPod unit must be constructed at locations and elevations according to the sizes shown on the approved drawings, and per recommendation of the manufacturer. The rim elevations as compared to the roadway flow line shall be confirmed by the Contactor prior to ordering the units. BioPod units shall be set parallel to the adjacent curb or roadway centerline. Any modification to the elevation or location must approval by the Engineer. 7-05.3(7) 120 x 72 Inch Rectangular Structure (******) This is a new section as follows: Contractor is responsible for design and acquisition of a vault that meets the following requirements: · Vault shall have interior dimensions of 120 inches by 72 inches by 84 inches deep. · Vault shall have one round 24-inch-diameter solid lid at the same location as existing DMH-137947 and one rectangular vaned grate lid at same location as existing CB- 194394 and elevations as existing grates. These vault lids shall be able to support a HS- 20 loading. Lids shall be ductile iron and bolt-locking. · Vault shall have a two (2) foot sump. · Structure knockouts shall be provided to accept pipes of the size, material, and elevation shown in the plans. Pipe locations and invert elevations will need to be field verified before ordering the structure. Contractor shall submit Type 3E Working Drawings and an Operations and Maintenance Manual to the Engineer for approval in accordance with Section 1-05.3 prior to ordering and installing the system. The submittal shall include product information, materials of construction, dimensions, specifications, and configuration related to other proposed aspects of construction. The submittal for the vault shall include a submittal for the lids. END OF SECTION 7-05 7-06 Construction Dewatering City of Renton 1-187 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 7-06 CONSTRUCTION DEWATERING (******) This is a new section as follows: 7-06.1 Description This section specifies the definition, responsibilities, and execution for control of water. Control of water shall consist of the design, furnishing, installation, operation, maintenance, monitoring, and removal of a dewatering system or systems to achieve proper completion of all work performed under this Contract. Work covered in this section includes temporary dewatering provisions including all labor, materials, tools, equipment and performing all incidentals necessary to dewater the excavations, structures, and other work areas during construction. Dewatering includes removal and proper discharge of all water, including, but not limited to, groundwater, surface water, and precipitation. 7-06.2 Construction Requirements Before the commencement of any dewatering, the Contractor shall obtain acceptance by the Engineer for the design, materials, method, installation, and operation and maintenance details of the dewatering system(s) and monitoring system the Contractor plans to install. Acceptance by the Engineer of the design, materials, method, installation, and operation and maintenance details submitted by the Contractor shall not in any way relieve the Contractor from responsibility for errors therein or from the entire responsibility for complete and adequate design, materials, installation, operation, maintenance, and performance of the system in controlling the water level in the excavated areas and for control of the hydrostatic pressures to the depths specified. The Contractor shall bear sole responsibility for proper design, installation, operation, maintenance, and any failure of any component of the dewatering system for the duration of this Contract. Before the commencement of any dewatering, the Contractor shall obtain the necessary State and County permit(s) to discharge dewatering water. The Department of Ecology has issued a Construction Stormwater General Permit and an Administrative Order which contains additional requirements to the City. The City will transfer the permit coverage to the contractor awarded the contract. The contractor shall coordinate, prepare and submit additional written reports and/or documents, and apply any required permit transfer application(s) with Ecology within 10 calendar days of Notice to Proceed. The Contractor shall provide, operate, maintain, and decommission the dewatering systems that consist of trench sumps; deep wells and, or, wellpoints; and a monitoring system. The Contractor shall control ground water as to prevent softening of the bottom of excavations, or formation of “quick” conditions or “boils” during excavation. The Contractor shall design, install, maintain, and operate the dewatering system as to prevent removal of the natural soils. The Contractor shall provide backup systems for all ordinary emergencies, including power outage and flooding, and shall always have available competent workers for the continuous and successful operation of the dewatering system. The Contractor shall not disable or shut- down the dewatering system between shifts, on holidays, or weekends, or during work stoppages, without written permission from the Engineer. The Contractor shall be responsible for maintaining all electric power service connections to the dewatering system 7-06 Construction Dewatering City of Renton 1-188 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions components and for the cost of electric power used in the operation of the dewatering system. The Contractor shall control surface runoff as to prevent entry or collection of water in excavations or in other isolated areas of the site. The Contractor shall employ sumps to pump any pocketed or undrained water not otherwise collected or removed. However, the Contractor shall not rely solely upon open and cased sumps for dewatering. The Contractor shall use sumps only where static groundwater levels are less than 2 feet above subgrade or in areas where the potentiometric surface has been previously lowered to within 2 feet of subgrade using wellpoints or pumped wells. The Contractor shall design the dewatering system using accepted and professional methods of design and engineering consistent with sound modern practice. The Contractor shall have or shall employ the services of a subcontractor who has experience in the field of dewatering system design, installation, operation, and maintenance. After initiating dewatering operations, the Contractor shall operate, maintain, and monitor the dewatering system or systems for the duration of the contract until specifically authorized in writing by the engineer to cease operation, maintenance, or monitoring. Well construction and abandonment shall be in accordance with WAC 173-160. The Contractor shall install, operate, and maintain a water treatment system to provide for settling of suspended solids or other requisite water quality treatment in the discharge from any sump, dewatering well, or wellpoint system. The Contractor shall dewater and dispose of the water in a manner that will not cause injury to public or private property, or to cause a nuisance or a menace to the public (i.e. there shall be no overflow of sewer or storm drain systems). The Contractor shall not allow the water discharged from the dewatering system wells, wellpoints, or supplemental water control systems (i.e. sumps) to degrade the water quality of the receiving waters. The Contractor shall comply with the site-specific storm water discharge permit requirements. The Contractor shall pay any fines incurred as a result of discharges that exceed maximum levels specified in the site-specific storm water discharge permit. 7-06.2(2) Quality Assurance The Contractor shall include, at minimum, all elements necessary for furnishing, installing, operating and maintaining the dewatering system. The Contractor shall employ the services of a specialty dewatering subcontractor who has at least 10 years’ experience in the field of large area-wide dewatering system design, installation, operation, and maintenance, and can document successful completion of at least 5 projects in the Puget Sound region which included both large-diameter deep wells and wellpoints. The Contractor shall employ materials, equipment, and construction methods commonly used and proven as suitable for the duration of construction dewatering. The Contractor shall provide submittals and, or, product data that demonstrate the suitability of the materials and equipment proposed for use on these systems. The Contractor shall test the dewatering 7-06 Construction Dewatering City of Renton 1-189 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions system to the reasonable satisfaction of the Engineer and make operational any deficiency prior to excavation. The Contractor shall integrate all dewatering, shoring, and excavation activities to ensure that said activities does not impede, or conflict, to the detriment of the work. The Contractor shall be responsible for any impacts to the project from conflicts between dewatering, shoring and, or, excavation. The contractor shall control excavation dewatering to prevent damage from settlement due to possible lowering of the adjacent groundwater table. The release of groundwater to its static levels shall be performed in such a manner as to maintain the undisturbed state of the foundation soils, prevent disturbance of backfill and prevent movement of all structures and utilities. 7-06.2(3) Submittals Where there is conflict between this section and Section 1-05.3, the requirements of this section 7-06.1(5) shall govern. Three (3) weeks before excavation begins, the Contractor shall submit drawings and complete design data showing methods and equipment the Contractor proposes for dewatering, including relief of hydrostatic head, management of other water, and in maintaining the excavation in a dewatered, hydrostatically controlled condition. Contractor shall provide a Ground Water Control Plan (GWCP) developed by a Washington licensed engineer or hydrogeologist with a minimum of 10 years’ experience in the design of ground water control systems. The Contractor shall submit information sufficient for the Engineer to understand the dewatering system including, but not limited to, the following: Specifications and manufacturer’s literature of the materials and a description of the methods proposed for use in the construction of dewatering system. Drawings indicating the location and size of berms, dikes, ditches, wells, wellpoints, sumps, monitoring wells, gravel drains, treatment facilities, discharge lines, and outfall design. The drawings shall include, at a minimum, all dewatering system elements. Capacities of pumps, prime movers, and standby equipment. Information supporting the location and number of any wells, wellpoints, gravel drains, sumps and discharge lines, and the adequacy of vacuum header, pressure header, discharge pipe sizes, pumps, filters/gravel packs, screens, and treatment facilities. Information supporting the design of the dewatering wells, gravel packs, wellpoints, and water treatment systems. Information detailing procedure(s) for restricting drawdown above the specified elevation(s). Dewatering schedule, operation, maintenance, and abandonment procedures. Project descriptions for dewatering projects of similar scope and size completed in the Puget Sound region by the Contractor’s specialty dewatering subcontractor and licensed engineer or hydrogeologist. 7-06 Construction Dewatering City of Renton 1-190 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 7-06.2(4) Available Subsurface Data The Contractor may use the subsurface information presented in reports and made available for the bidders’ convenience that are not a part of the contract. However, the Contractor shall assume responsibility for the interpretation or use of all information presented in the above reports. The use of the available data and information in no way relieves the Contractor from the sole responsibility for proper design, installation, operation, maintenance, and any failure of any component of the dewatering systems for the duration of this Contract. 7-06.2(5) Restrictions and Limitation Inside any excavation: The Contractor shall depress water levels, and hydrostatic pressures, within the excavation a minimum of 2 feet below the excavation bottom at all times and conditions. 7-06.2(6) Monitoring System The Contractor shall install any additional monitoring wells the Contractor needs to ensure dewatering systems achieve the drawdowns necessary to complete the work and ensure that ground water levels do not drop below the restricted levels. The Contractor shall survey measuring point elevations on all pumping and monitoring wells to 0.01-foot precision. The Contractor shall survey all measuring points to a common datum. The Contractor shall provide in-line flow meters on all well and wellpoint system discharge pipes to ensure accurate measurement of the total flow from the dewatering system. The flow meters shall show flow in gallons per minute and total flow passing through the meter. The flow meter shall be sized and installed to accurately represent the flow through the meter. The Contractor shall test and document the accuracy of all installed flow meters. The Contractor shall provide flow meter calibration documentation to the Engineer two weeks prior to any dewatering system pumping other than well or wellpoint development. The Contractor shall maintain accurate and precise daily records of water level and flow measurements. The Contractor shall measure water levels in all pumping and monitoring wells to 0.01-foot precision and flow to within 5 gallons per minute. Measurements shall be recorded on forms provided by the Engineer. The Contractor shall begin water level measurements within 24 hours of any well completion or wellpoint installation and development and continue daily measurements until the well is properly abandoned or the Engineer approves cessation of measurement. The Contractor shall begin water flow measurements within 4 hours of initiating pumping in any well or wellpoint system and continue measurements until the Engineer approves cessation of measurement. The Contractor shall report to the Engineer, any changes in dewatering discharge flow of 25 percent or more occurring within any 24-hour period within four hours following such a change. The Contractor shall notify the Engineer anytime a pump fails, or is turned off or on, for a period of more than 4 hours. Additionally, the Contractor shall note and record when any well(s) or dewatering systems are turned off and back on. The Contractor shall provide water level and flow measurement records to the Engineer daily in both hardcopy and digital form. The Contractor may remove and replace or shorten the casings of monitoring wells as the work requires, however, the Contractor shall bear full responsibility for the water level 7-06 Construction Dewatering City of Renton 1-191 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions information provided by those wells and any consequences stemming from the lack of or error in the information. The Engineer shall be notified of any change in the measuring points of any well. The Contractor shall re-survey any shortened or lengthened observation well casing and provide such data to the Engineer. The Contractor shall notify the Engineer, one week prior to installation of any monitoring wells. The Contractor shall provide the Engineer with driller’s logs and formation samples at 5-foot intervals for each well. 7-06.3(3) Formation Protection and Well Development The Contractor shall design, construct, operate, and maintain the dewatering system such that the fine fraction of the foundation soils will not be removed upon pumping. The Contractor shall develop all wells and wellpoints to remove fines resulting from drilling and construction and to increase the yield and hydraulic connection with the aquifer. The Contractor shall discharge all development water to the sediment settling tanks prior to discharge. The Contractor shall not discharge any development water directly to the ground surface or surface water body. The Contractor shall monitor discharge from all parts of the system to ensure that the sand/silt content of the discharge water does not exceed the limits established by the discharge permit, stormwater permit, and/or other permit as applicable, determined by a Rossum SAND TESTER or equivalent. The Contractor shall provide all of the equipment and fittings for monitoring sand content. The Contractor shall monitor sand/silt content daily for one week after installing any dewatering well or wellpoint and weekly thereafter. The Contractor shall take sand/silt content measurements in the presence of the Engineer. The Contractor shall notify the Engineer of the time of measurement and provide 24-hour notice of planned measurements. 7-06.3(4) Standby Equipment The Contractor shall furnish and maintain on site sufficient power-generating and other equipment and materials to ensure continuous and successful operation of the dewatering system. The Contractor shall maintain on site, ready to operate, sufficient standby electrical generating capacity to operate all wells pumps and/or wellpoint pumps simultaneously. The Contractor shall test all backup electric systems monthly in the presence of the Engineer. These tests shall include at least 24 hours of operation under full system load. The Contractor shall have on site, a backup pump for each type of pump in the dewatering system and sufficient pipe and fittings for any repair. 7-06.3(5) Discharge Points and Pipes Discharge piping shall be designed and installed in a manner which minimizes impacts to excavation or construction activities. Acceptable discharge points to be approved by the Engineer. Discharge of dewatering water shall be restricted such that it does not cause surcharging or overflow of the receiving storm or sanitary sewer system. Discharge to the storm or sanitary sewer system is limited by receiving pipe size as follows, however, field conditions may necessitate more restrictive flowrates: Pipe Diameter (inches) 24 18 12 10 8 7-06 Construction Dewatering City of Renton 1-192 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Flowrate (gpm) 2880 1638 752 522 344 Flowrate (MGD) 4.15 2.36 1.08 0.75 0.50 7-06.3(6) Water Supply for System Installation and Electrical Service The Contractor shall provide water supply and electrical service needed for the dewatering systems. The Contractor shall provide a completely separate power company source for the dewatering system electric service with its own meter and which shall be dedicated solely for the dewatering system and separate from all other electric service. 7-06.3(7) Dewatering System Protection The Contractor shall take reasonable precautions to ensure continuous successful operation of the dewatering system. This includes establishing and/or maintaining adequate marking of all well, pump and pipeline locations. Wherever dewatering wells or discharge lines require crossing for access into, out of, or around an excavation, steel ramps shall protect the system from vehicular traffic. All ramps shall have the strength to support the heaviest equipment on site and shall provide at least one foot of clearance between the dewatering system element and the underside of the ramp. The Contractor shall clearly identify all vehicular access points across the dewatering system with brightly colored or flagged 8-foot high poles on each side of the access point. The Contractor shall valve all ramped pipelines on both sides of the ramp. 7-06.3(8) System Removal A licensed water well contractor in accordance with WAC 173-160 shall abandon all wells, wellpoints and observation wells installed by the Contractor at no cost to the City. The Contractor shall seal any well, wellpoint hole, sump, gravel drain or other penetrations below the excavation with a bentonite grout mixture exhibiting a permeability less than 1 x 10-6 centimeters per second. END OF SECTION 7-06 7-08 General Pipe Installation Requirements City of Renton 1-193 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 7-08 GENERAL PIPE INSTALLATION REQUIREMENTS 7-08.3 Construction Requirements 7-08.3(1)A Trenches (******) Supplement this section as follows: Trench Excavation and backfill for the storm sewer, sanitary sewer, and water main construction shall be in accordance with the trench limits outlined in the table below. Existing soil conditions are variable, and areas of soil instability may exist. The Contractor is responsible for protecting and maintaining the trench integrity and shall be held accountable for liability of trench construction, maintenance, and incidental trench deficiencies or accidents. Incidents that result in loss of trench integrity will not be eligible for a change order. All trench excavated materials shall be disposed of off-site at an approved Contractor- provided disposal site. Excavation outside the excavation limits shown on the plan drawings shall be at no additional expense to the City. Pipe Type Water Pipe Sewer and Storm Drain Sewer and Storm Drain Sewer and Storm Drain Trench Depth All <8-feet 8 through 16- feet >16-feet Trench Pay Width (ft) 4 4 6 8 Wet Weather Earthwork The Contractor shall perform all wet weather earthwork in small sections to minimize exposure to wet conditions. All excavations or removal of unsuitable soils shall be immediately followed by placement and compaction of replacement fill to depth as required. Limit type of construction equipment to prevent soil disturbance. The Contractor shall slope and seal with a smooth drum vibratory roller the ground surface within the construction area to prevent ponding and promote rapid runoff of water. All soils shall be compacted to avoid absorption of water. Soils which become too wet for compaction shall be removed and replaced at no additional cost to the Owner. 7-08.3(1)C Bedding the Pipe (******) Supplement this section as follows: Bedding material shall meet the requirements of Gravel backfill for Pipe Zone Bedding in accordance with Standard Specification Section 9-03.12(3). Pipe bedding shall be considered incidental to the pipe and no further compensation shall be made. For all pipe bedding, hand compaction of the bedding materials under the pipe haunches will be required. Pipe bedding should provide a firm uniform cradle for support of the pipes. Prior to installation of the pipe, the pipe bedding should be shaped to fit the lower part of the pipe exterior with reasonable closeness to provide uniform support along the pipe. Hand 7-08 General Pipe Installation Requirements City of Renton 1-194 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions compaction shall be accomplished by using a suitable tamping tool to firmly tamp bedding material under the haunches of the pipe. Care shall be taken to avoid displacement of the pipe during the compaction effort. Pipe bedding material should be used as pipe zone backfill and placed in layers and tamped around the pipes to obtain complete contact. Bedding material shall meet the requirements of Gravel Backfill for Pipe Zone Bedding in accordance with Standard Specification Section 9-03.12(3). Pipe bedding shall be considered incidental to the pipe and no further compensation shall be made. 7-08.3(1)D Pipe Foundation (******) This is a new section as follows: Pipe foundation in poor soil: When soft or unstable material is encountered at the subgrade which, in the opinion of the Engineer, will not uniformly support the pipe, such material shall be excavated to an additional depth as required by the Engineer and backfilled with foundation gravel material placed in maximum 12-inch lifts. Foundation gravel shall be CSBC or Gravel Backfill for Walls, as directed by the Engineer, and conform to the requirements of Section 9-03.9(3) or Section 9-03.12(2) of the Standard Specifications. In areas where the subgrade soils in the trench excavation consist of fine-grained soils, such as silt, clay, or organic rich soils, the Contractor shall notify the Engineer immediately. The Engineer may direct the Contractor to use a geotextile separator fabric to be placed over the native soils prior to placement of the pipe bedding. The geotextile shall meet the requirements of Section 9-33.2(1) Table 3 for Separation. Geotextile shall be incidental to the pipe installation unless specified as a separate bid item. Corrections faulty grade: Excess excavation below grade shall be backfilled with foundation gravel as specified above and thoroughly compacted to the required grade line. 7-08.3(2) Laying Pipe 7-08.3(2)A Survey Line and Grade (******) Revise the first paragraph in this section as follows: Survey line and grade control shall be provided in accordance with Sections 1-05.4, 1-05.5 and 1-11 and in a manner consistent with accepted practices. 7-08.3(2)B Pipe Laying – General (******) Supplement this section as follows: Pipe shall be laid up-grade beginning at the downstream point of connection unless specifically requested by the Contractor in writing and approved by the Engineer. Checking of the invert elevation of the pipe may be made by calculations from measurements on the top of the pipe, or by looking for ponding of 1/2" or less, which indicates a satisfactory condition. At manholes, when the downstream pipe(s) is of a larger 7-08 General Pipe Installation Requirements City of Renton 1-195 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions size, pipe(s) shall be laid by matching the (eight-tenths) flow elevation, unless otherwise shown on the plans and/or approved by the Engineer. All pipe, fittings, appurtenances, etc. shall be carefully handled and protected against damage, impact shocks, and free fall. All pipe handling equipment shall be acceptable to the Engineer. Pipe shall not be placed directly on rough ground but shall be supported in a manner which will protect the pipe against injury whenever stored at the trench site, or elsewhere. No pipe shall be installed where the lining or coating show defects that may be harmful as determined by the Engineer. Such damaged lining or coating shall be repaired, or a new undamaged pipe shall be furnished and installed at the Contractor expense. The Contractor shall inspect each pipe and fitting prior to installation to insure that there are not damaged portions of the pipe. Any defective, damaged, or unsound pipe shall be repaired or replaced. All foreign matter or dirt shall be removed from the interior of the pipe before lowering into position in the trench. Pipe shall be kept clean during and after laying. All openings in the pipeline shall be closed with watertight expandable type sewer plugs at the end of each day's operation, or whenever the pipe openings are left unattended. The use of burlap, wood, or other similar temporary plugs will not be permitted. Where necessary to raise or lower the pipe due to unforeseen obstructions or other causes, the Engineer may change the alignment and, or the grades. Pipes shall be laid uphill on grades that exceed 10 percent, except for short runs when permitted by the Engineer. Pipe, which is laid on a downhill grade, shall be blocked and held in place until sufficient support is furnished by the following pipe to prevent movement. Unless otherwise required, all pipe shall be laid straight between the changes in alignment, and at uniform grade between changes in grade. For concrete pipes with elliptical reinforcement, the pipe shall be placed with the minor axis of the reinforcement in a vertical position. Immediately after the pipe joints have been made, proper gasket placement shall be checked with a feeler gage as approved by the pipe manufacturer to verify proper gasket placement. 7-08.3(2)E Rubber Gasketed Joints (******) Supplement this section as follows: Care shall be taken by the Contractor to avoid over inserting the pipe and damaging the pipe or joint system. Any damaged pipe shall be replaced by the Contractor at his/her expense. Immediately after the pipe joints have been made, proper gasket placement shall be checked with a feeler gage as approved by the pipe manufacturer to verify proper gasket placement. 7-08.3(2)G Jointing of Dissimilar Pipe (******) Supplement this section as follows: 7-08 General Pipe Installation Requirements City of Renton 1-196 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Dissimilar pipe shall be jointed by use of a factory-fabricated adapter coupling. Coupling shall be “Strong-Back” Flexible Coupling type, Fernco or approved equal. 7-08.3(2)H Sewer Line Connections (******) Supplement this section as follows: All connections not occurring at a manhole or catch basin shall be done utilizing pre- manufactured tee connectors or pipe sections approved by the Engineer. Any other method or materials proposed for use in making connections shall be subject to approval by the Engineer. Unless otherwise approved by the Engineer, all connections of lateral sewers to existing mains shall be in accordance with the following Table. Pipe Type Connection Method Vitrified Clay Main Cut in new PVC “Tee” using “Strong-Back” Flexible Couplings (Fernco or approved equal) Concrete Main Cut in new PVC “Tee” using “Strong-Back” Flexible Couplings (Fernco or approved equal) PVC & C900 PVC Main Core-drilled with Romac Saddle (or approved equal) or cut in new “Tee” using “Strong-Back” Flexible Couplings (Fernco or approved equal) Ductile Iron Main Core-drilled with Romac Saddle (or approved equal) Lined Sewer Main Connection to sewer mains that have been lined (CIPP, Etc.); cut in new “Tee” using “Strong-Back” Flexible Couplings (Fernco or approved equal) HDPE Core-Drilled with Romac Saddle. “Inserta-Tee” may be used on sewer mains 12” diameter or larger Connections (unless booted connections have been provided for) to existing concrete manholes shall be per Section 7-05.3(3). The Contractor shall submit a by-pass pumping plan in preparation for connections to existing lines, which shall be made only with the written approval of Soos Creek Water & Sewer District after review and approval of said bypass pumping plan. The Contractor shall notify the District's field representative and other utilities at least 48 hours in advance of any construction and make the necessary arrangements with the District's field representative for the connection to the existing sewer system. The Contractor shall furnish all material, equipment and labor necessary for making the connection under the supervision of the District. The 48-hour notice requirement shall not count Saturdays, Sundays, and holidays. Work shall not be started until all of the material, equipment and labor necessary to properly complete work is assembled on the site. Once work is started on a connection, it shall proceed continuously without interruption and as rapidly as possible until the connection is completed. Before ordering materials for any connection to an existing manhole, the Contractor shall excavate the manhole and verify outside diameter of all pipes for determining types of fittings to be used. All work shall be coordinated with the District’s field representative. The existing sewers and bypass pumping system shall remain in service at all times. 7-08 General Pipe Installation Requirements City of Renton 1-197 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Connections to sanitary sewer manholes shall be made using a sand collar, a concrete coupling or a kor-n-seal boot. The pipe to manhole connection shall be watertight. Any leaks in the couplings or other areas created while connecting to the existing manhole shall be sealed with Strata Tech ST-520 Injection Resin or approved equal. The Contractor shall re-channel existing manholes as necessary to smoothly direct the flow into the existing system. All water and/or construction debris shall be removed from new sewers and not be permitted to enter the existing system. The Contractor shall be responsible for flushing out and cleaning any existing sewers into which gravel, rocks or other debris has entered as a result of the Contractor's operations, and shall pay for repair to lift stations or other facilities damaged by such debris. All flushing water shall be pumped from upstream manholes or sewer lines and shall not be allowed to enter the existing sewer. END OF SECTION 7-08 7-09 Water Mains City of Renton 1-198 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 7-09 WATER MAINS 7-09.2 Materials (******) This section is supplemented as follows: Ductile iron pipe for water main shall conform to Section 9-30.1(1) of the Standard Specifications as modified herein. 7-09.3 Construction Requirements 7-09.3(1) General This section is supplemented as follows: Pipe zone bedding, pipe zone backfill, and trench backfill requirements shall conform to the trench details shown in the Plans and Standard Plans. In general, these requirements, as shown, are subject to variation depending on the following interrelated factors relating to the location of the water main: • The surface restoration required, for example: paved traffic area, paved nontraffic area such as sidewalks, unpaved traffic areas such as a gravel road shoulder, unpaved area such as landscaping, lawns, or areas requiring erosion control seeding. • The road agency (right-of-way) jurisdiction: City of Renton. • The land agency jurisdiction for easement areas outside of the right-of-way: City of Renton • The proximity of nearby utilities. 7-09.3(6) Existing Utilities (******) Supplement this section as follows: Working With Asbestos Cement Pipe When asbestos is encountered, the Contractor shall be responsible for obtaining all permits from, and provide notification to, the Washington State Department of Labor and Industries, the U.S. EPA, the Puget Sound Clean Air control agency, and other permitting and regulatory agencies with jurisdiction over the work involving asbestos as the law requires. Prior to commencing asbestos related work, the Contractor shall provide the Engineer with written verification of approvals and notifications that have been given and/or obtained from the required jurisdictional agencies, and the Contractor's schedule for all work involving asbestos removal. The schedule shall include the sequencing and scheduling of asbestos related work, and coordination with subcontractors. The Contractor shall notify the Engineer when all approvals have been received and notifications have been made, as required by the agencies involved. The Contractor shall ensure the safety of all workers, visitors to the site, and the general public in accordance with all applicable laws, rules, and regulations. The Contractor shall designate a Washington State Certified Asbestos Supervisor (CAS) to personally supervise the asbestos removal and to ensure that the handling and removal of asbestos is accomplished by certified asbestos workers, pursuant to Washington State Department of 7-09 Water Mains City of Renton 1-199 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Labor and Industries standards. The Contractor shall ensure that the removal and disposal of asbestos meets the requirements of EPA regulations 40 CFR Part 61, Puget Sound Clean Air Agency Asbestos Control Standards, and all other applicable regulations. In order to maintain workers' exposure to or below the exposure limit to asbestos material as prescribed in WAC 296-62-07705 State/Federal Guidelines and Certification, the Contractor shall provide protective work clothing and equipment. No employee shall be allowed to work on asbestos cement pipe unless the following tools and protective work clothing are used. Carbide Blade Cutting (hand operated only) Blade cutters consist of a frame, adjustable to the circumference of the pipe, and a number of outboard, self-tracking rollers that align one or more carbide-tipped cutting blades. The cutter is rotated around the pipe with the blades cutting a groove into the pipe. As the cutter is rotated, the blades are slowly tightened with screws to cut deeper and deeper into the pipe until the pipe is severed. Equipment required: · Hand operated carbide blade cutter, · Water source and means of application sufficient to maintain a continuously wetted cutting area, · Disposable coveralls, · Respiratory protection consisting of 1/2 face respirator equipped with HEPA filters or respirator which provides equivalent or better protection, · Rubber boots, and · Hard hat. 1. Excavate around the AC pipe a sufficient distance to assure adequate tool clearance in the area to be cut. Care must be taken to avoid any abrasion to the pipe. 2. Don protective equipment and have sufficient water available before entering the trench to begin cutting operations. 3. Clean and wash with water the surface of the pipe in the area to be cut and attach the cutting equipment around the AC pipe. 4. Begin applying water to the area being cut and continue until cutting is complete. 5. Operate the cutting tool in accordance with the manufacturer's instructions until cutting is complete, making sure that water is applied in sufficient quantities to assure that the area being cut is continuously wetted and no AC dust is created. 6. Detach cutting equipment, move to new cutting location, and repeat procedure described above. Upon completion of final cut, thoroughly wash the cutting equipment with clean water to remove all AC debris. Allow wash water to drain into the bottom of the trench. Remove washed cutting equipment from the trench. 7. Install other pipe and fittings as necessary to complete the job taking care to avoid any abrasions to the AC pipe. 8. When all pipe work is completed, remove disposable coveralls and leave them in the bottom of the trench. Thoroughly wash hands, boots, and any small tools with clean water to remove all AC debris. Allow wash water to drain into the bottom of the trench. Leave all AC pipe and asbestos containing materials in the trench unless arrangements have been made for proper disposal at an approved landfill. Hauling and disposal off-site is not considered necessary and the Contractor shall not haul removed AC pipe off site without prior authorization from the City. 7-09 Water Mains City of Renton 1-200 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 9. Exit ditch in such a manner that no AC debris will contaminate work clothing, boots, tools, etc. Any other method proposed by the Contractor shall be one approved by the Washington State Department of Labor and Industries and shall meet the approval of the City prior to commencement of construction. 7-09.3(15) Laying of Pipe of Curves 7-09.3(15)A Ductile Iron Pipe (******) Revise the first paragraph in this section as follows: Long radius curves with radius of 400 feet or more, either horizontal or vertical, pipe may be laid with standard pipe lengths by deflecting the joints. If the pipe is shown curved on the Plans and no special fittings are shown, the Contractor can assume that the curves can be made by deflecting the joints with standard lengths of pipe. If shorter lengths are required, the Plans will indicate maximum lengths that can be used. The amount of deflection at each pipe joint when pipe is laid on a horizontal or vertical curve shall not exceed 50% of the manufacturer’s printed recommended deflections at each end. The Contractor shall submit to the Engineer the pipe manufacturer's joint deflection recommendations prior to pipe installation indicating deflections are within allowable AWWA specification tolerances. 7-09.3(15)B Polyvinyl Chloride (PVC) Pipe (4 inches and Over) (******) This section is supplemented as follows: Polyvinyl Chloride (PVC) Pipe shall not be used for water mains and appurtenances. 7-09.3(17) Laying Ductile Iron Pipe and Fittings with Polyethylene Encasement (******) Revise this section as follows: The Contractor shall lay ductile iron pipe with a polyethylene encasement. Pipe and polyethylene encasement shall be installed in accordance with AWWA C105. The polyethylene encasement shall also be installed on all fittings and appurtenances with 8-mil polyethylene plastic in accordance with Section 4-5 of ANSI 21.5 or AWWA C105. The polyethylene wrap shall be tube type and black color. Any damage that occurs to the wrap shall be repaired in accordance with ANSI/AWWA C105/A21.5-93. Installation of the polyethylene encasement shall be considered incidental to the installation of the pipe and fittings and no additional payment shall be allowed. 7-09.3(19)A Connections to Existing Mains (******) Revise this section as follows: 7-09 Water Mains City of Renton 1-201 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Replace the last sentence in the sixth paragraph of Section 7-09.3(19)A with the following sentence: The Contractor shall not operate any valve or fire hydrant of the existing water system at any time, without prior approval of the OWNER. Delete the last paragraph of Section 7-09.3(19)A and replace with the following: The Contractor shall notify the District’s field representative and other utilities at least 48 hours in advance of any construction and make the necessary arrangements with the District’s field representative for the connection to the existing water main. The Contractor shall not operate any gate valve or fire hydrant of the water system before, during or after construction without prior approval of the District. The Contractor shall furnish all material, equipment and labor necessary for making the connection under the supervision of the District. The 48-hour notice requirement shall not count Saturdays,Sundays, and holidays. Work shall not be started until all of the material, equipment and labor necessary to properly complete work is assembled on the site. Once work is started on a connection, it shall proceed continuously without interruption and as rapidly as possible until the connection is completed. Before ordering materials for any connection to an existing water main, Contractor shall excavate the water main and verify the type of pipe and outside diameter of all pipes for determination of types of fittings to be used. The Contractor shall coordinate all work with the District's field representative. The Contractor shall verify the location and depth of all existing utilities affected by the connection prior to the start of any of this Work. Contractor shall pothole and verify all existing fittings and pipe configurations prior to scheduling a shutdown of the existing system for connections. If the connection to the existing water system involves turning off the utility, Contractor shall notify the OWNER of the time and duration of the shutdown at least 48 hours prior to the shutdown. Contractor shall be responsible for any damage caused to any customer's system due to the shutdown and subsequent recharging of the system. Contractor shall not operate any valve or fire hydrant of the water system, at any time, without prior approval of the OWNER. OWNER may require assistance from Contractor in notification of customers. The Contractor shall have all required equipment and materials at the site prior to starting any Work involving a connection to the existing system. If the connection or abandonment of the existing main requires any existing pipe to be removed from the trench, then said pipe shall be properly removed and disposed of in a legal and safe manner. Where newly installed ductile iron water main is installed UNDER existing AC main the contractor shall place CDF as backfill to a minimum of 1-foot above the existing AC main and allow CDF to cure prior to backfilling and compaction of the trench area over the existing AC main. 7-09.3(21) Concrete Thrust Blocking (******) Delete and replace this section as follows: All fittings shall be blocked with poured concrete against undisturbed soil with sufficient concrete and ¾-inch diameter anchor rods, if required, to resist the resultant forces. 7-09 Water Mains City of Renton 1-202 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Blocking shall conform to the details shown on the Drawings and shall provide for removal of any connection to the fittings without damage to the fitting. Where unfavorable ground conditions are encountered, special blocking will be required as directed by the District in the field. When digging near fittings of existing pipelines, temporary wood blocking shall be installed to prevent blowouts. All fittings for larger than 12-inch mains shall be blocked with reinforced concrete. Blocking design to be provided by the Contractor. Blocking shall be designed and stamped by a registered Professional Engineer and submitted to the District and approved by the District prior to installation of the corresponding valve and all blocking. Contractor shall take special care to ensure proper bedding, backfill and compaction during the installation of fitting. The Contractor shall provide the Engineer at least 1 Working Day advance notice before pouring concrete thrust blocking and 1 Working Day advance notice for inspection and approval of all concrete blocking prior to backfilling. 7-09.3(23) Hydrostatic Pressure Test (******) Revise this section as follows: Replace the first sentence in the first paragraph with the following sentences: All water mains and appurtenances shall be tested in sections of convenient length. Test pressure shall be the existing system line pressure plus 150 PSI but in no case shall the test pressure be less than 250 PSI. The Contractor shall provide all Work, labor, equipment, materials, gauges, pumps, and incidentals required for testing. 7-09.3(24)A Flushing and “Poly-pigging” (******) Revise and supplement this section as follows: Prior to disinfection and prior to final flushing of the Water Mains for bacteriological sampling and testing, all Water Mains shall first be poly-pigged to remove any solids or contaminated materials that may have entered or become lodged in the pipes during installation. The "Poly-pig" shall be light density foam (1-2 lbs/cubic-foot) with 90A durometer urethane rubber coating on the rear of the "Poly-pig" only. The "Poly-pig" shall be cylinder shaped with bullet nose or squared end. The “Poly-pigs” shall be inserted in the pipes and retrieved form the pipes through launching stations with vertical crosses and blow-off assemblies as shown and on the Contract Plans and Standard Plans. If the main cannot be poly-pigged and a hydrant is not installed at the end of the main, then a tap shall be provided large enough to develop a flow velocity of at least 2.5 fps in the water main. Taps required by the Contractor for temporary or permanent release of air, chlorination or flushing purposes shall be provided by the Contractor as part of the construction of water mains. 7-09 Water Mains City of Renton 1-203 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions The Contractor shall be responsible for disposal of treated water flushed from mains and shall neutralize the wastewater for protection of aquatic life in the receiving water before disposal into any natural drainage channel, i.e., receiving water, waters of the State, including wetlands. The Contractor shall be responsible for disposing of disinfecting solution to the satisfaction of the Contracting Agency and local authorities. At a minimum, chlorinated water shall be dechlorinated to a concentration of 0.1 parts per million (ppm) or less, and pH adjustment to within 6.5 – 8.5 standard units before discharging to surface waters of the State or to a storm sewer system that drains to surface waters of the State. If approved by the Engineer and by the local authority responsible for the sanitary sewer system, disposal of treated water from mains may be made to an available sanitary sewer, provided the rate of disposal will not overload the sewer. 7-09.3(24)D Dry Calcium Hypochlorite (******) Supplement this section as follows: Dry calcium hypochlorite shall not be placed in the pipe as laid. 7-09.3(24)K Retention Period (******) Revise this section as follows: Treated water shall be retained in the pipe at least 24 hours but no longer than 48 hours. After this period, the chlorine residual shall be tested at all pipe extremities and at other representative points shall be at least 25 mg/L. If a measurement of less than 25 mg/L is obtained repeat disinfection is required. 7-09.3(24)N Final Flushing and Testing (******) Revise this section as follows: Following chlorination, treated water shall be flushed from the newly laid pipe until the replacement water throughout its length shows, upon test, the absence of chlorine. In the event chlorine is normally used in the source of supply, then the tests shall show a residual not in excess of that carried in the water supply system. After flushing the treated water from the pipes, a 16-hour rest period is required before any water quality sampling can be taken from the new pipes. A sample tap shall be located ahead of the flushing hose for convenience and for sanitary sampling. Before placing the lines into service, and after a 16 hour rest period, two sets of satisfactory reports taken at least 15 minutes apart from each sampling point shall be received from the local or State Health Department or from a State accredited testing laboratory on samples collected from representative points in the new system. Samples will be collected and bacteriological tests obtained by the Engineer. 7-09 Water Mains City of Renton 1-204 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions At a minimum, chlorinated water shall be dechlorinated to a concentration of 0.1 parts per million (ppm) or less, and pH adjustment to within 6.5 to 8.5 standard units, if necessary, before discharging to surface waters of the State or to a storm sewer system that drains to surface waters of the State. END OF SECTION 7-09 7-12 Valves for Water Mains City of Renton 1-205 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 7-12 VALVES FOR WATER MAINS 7-12.3 Construction Requirements 7-12.3(1) Installation of Valve Marker Post (******) Delete and replace this section as follows: Where required, a valve marker post shall be furnished and installed with each valve. Valve marker posts shall be placed at the edge of the right-of-way opposite the valve and be set with 18 inches of the post exposed above grade. 7-12.3(2) Adjust Franchise Utility Appurtenances to Grade (******) This is a new section as follows: Existing utility lids, valve boxes and water meters shall be adjusted to grade in the same manner as for manholes, as detailed in Section 7-05.3(1) of the WSDOT Standard Specifications. Existing utility lids, valve box and water meters shall be adjusted at locations shown in the Plans or as directed by the Engineer. Existing utility lids, valve boxes and water meters shall be adjusted to conform to final finished grades. The final installation shall be made in accordance with the applicable portions of Section 7-12. In the event that the existing valve box is plugged or blocked with debris, the Contractor shall use whatever means necessary to remove such debris, leaving the valve installation in a fully operable condition. The existing utility lids, valve boxes and water meters shall be set to an elevation tolerance of one-fourth inch (1/4") to one-half inch (1/2") below finished grade. END OF SECTION 7-12 7-14 Hydrants City of Renton 1-206 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 7-14 HYDRANTS 7-14.1 Description (******) Supplement this section as follows: The Contractor shall mark anticipated locations of fire hydrants in the field using paint or driven nails a minimum of two (2) working days in advance of construction. Markings shall be refreshed as necessary. 7-14.2 Materials (******) Revise this section as follows: Delete reference to guard posts in table in Section 7-14.2. Guard post shall not be installed with fire hydrant assemblies unless indicated otherwise on Plans. Supplement this section as follows: Hydrants shall be standard 5¼-inch main valve opening with two 2½-inch ports with National Standard hose thread and one 4½-inch pumper connection with City of Seattle thread. All ports shall be furnished with 1¼-inch pentagon operating nuts that turn counterclockwise to open. The pumper connection shall be equipped with a 5-inch Storz adapter meeting or exceeding the following specifications: 1. Storz adapter to be forged and/or extruded 6061-T6 aluminum alloy, hardcoat anodized. 2. Threaded portion to have no lugs and two set screws 180° apart. 3. Storz face to be metal with no gasket to weather. 4. Storz cap shall be forged and/or extruded 6061-T6 aluminum alloy with anodized hardcoat and synthetic molded rubber gasket. Storz cap shall be attached to hydrant adapter with 1/8-inch coated S.S. aircraft cable. 5. Cap shall be connected and disconnected with Storz wrenches only. Torque to be sufficient so cap cannot be removed by hand. 6. Storz adapter shall be attached to hydrant with 1/8-inch stainless steel cable. Hydrants shall be furnished with a 6-inch mechanical joint outlet, two ¾-inch diameter tie rods, a 6-inch auxiliary gate valve with valve box, and a riser to suit the trench depth at each installation. The gate valve shall be flanged to the main tee. Hydrant shall also be furnished with a break-off flange on the barrel and a break-off coupling for the stem. Hydrants shall conform to District standards. Fire hydrants shall be equipped with steamer and hose port threads in accordance with the requirements of the local fire protection district. All fire hydrants shall be M & H Style 929 Reliant, Mueller Centurion Model A-423, Clow Medallion or Waterous Pacer No. WB-67. Nozzles shall be fitted with renewable bronze nipple locked in place. Maintain three (3) feet clearance between hydrant and property or easement line. 7-14 Hydrants City of Renton 1-207 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Blue reflective markers shall be Type 1 as described in Section 9-21.1 of the Standard Specifications. The hydrant shall be cleansed and prime coated with a heavy-duty brush type primer or approved equal. All hydrants shall be painted safety yellow with two topcoats of Kelly-Moore / Preservative Paint No. 5780-563 DTM acrylic gloss or approved equal. The distance from the hydrant to the 6-inch gate valve shall be stenciled on the hydrant with 2- inch letters. 7-14.3 Construction Requirements (******) Supplement this section as follows: Existing fire hydrant assemblies to be removed shall be cut off and removed intact down to the hydrant lateral (to include the shoe) once the new fire hydrant is in service. The Contractor shall salvage or dispose, at District’s discretion, all fire hydrant assemblies and backfill as necessary. During the chlorination process for the newly laid pipe, all valves associated with the fire hydrants shall be operated while the pipeline is filled with the chlorinating agent and under normal operating pressure. 7-14.3(1) Setting Hydrants (******) Paragraph four and five of Section 7-14.3(1) is revised and the section is supplemented as follows: 7-14.3(1) Hydrant Assembly Where shown on the Plans, hydrants shall be installed in accordance with the Standard Plans and Contract specifications. A minimum 3-foot radius unobstructed working area shall be provided around all hydrants. The bottom surface of the breakaway flange shall be set 2-inches minimum and 7-inches maximum above the concrete shear block finished grade. For each hydrant requiring vertical adjustment, see Section 7-14.3(6). Fire hydrants shall be of such length as to be suitable for installation with connections to 6", 8" and 10" piping in trenches 3 - 1/2 feet deep unless otherwise specified. The hydrant shall be designed for a 4-1/2-foot burial where 12" and larger pipe is shown unless otherwise noted in the Plans. After installation hydrants shall be subjected to a hydrostatic test as specified in Section 7-09.3(23). The hydrant excavation shall be backfilled and compacted when installation and testing are complete and accepted by the Engineer. 7-14 Hydrants City of Renton 1-208 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions A concrete shear block as shown by the hydrant details on the Standard Plans shall be constructed for all hydrants. Construction, Materials, and finishing of the concrete shear block shall conform to Section 8-14, Cement Concrete Sidewalk. The shear block shall be set flush with the immediately surrounding finish grade. The Contractor shall flush, test and disinfect furnished hydrants and hydrant barrel extensions according to Section 7-14.3(6). Upon completion of the project, all fire hydrants shall be painted with two field coats of Kelly- Moore/Preservative paint No. 5780-563 DTM Acrylic Gloss Safety Yellow or approved equal. Any hydrants not in service shall be identified by covering with a burlap or plastic bag properly secured. Fire hydrant assembly shall include: main line cast-iron or ductile iron tee (MJ x FL), 6" gate valve (FL x MJ), 6" DI spool (PE x PE) up to 18 feet in length, 5-1/4" MVO fire hydrant (MJ connection), 4" x 5" Storz adapter with stainless steel cable, cast iron valve box, cover, valve operating nut extension, 2-3/4" Cor-Ten shackle rods and accessories, concrete blocks, shear block and blue pavement marker. 7-14.3(3) Resetting Existing Hydrants Section 7-14.3(3) is supplemented with the following: All existing hydrants to be reset shall be rebuilt to the approval of the Engineer. All rubber gaskets shall be replaced with new gaskets of the type required for a new installation of the same type. Unless a specific bid item has been included in the Proposal/Contract Document, resetting existing hydrants shall be incidental to and included in the various bid items. 7-14.3(4) Moving Existing Hydrants Section 7-14.3(4) is supplemented with the following: All existing hydrants to be moved shall be rebuilt to the approval of the Engineer. All rubber gaskets shall be replaced with new gaskets of the type required for a new installation of the same type. Unless a specific bid item has been included in the Proposal/Contract Document, resetting existing hydrants shall be incidental to and included in the various bid items. Unless a specific bid item has been included in the Proposal/Contract Document, resetting existing hydrants shall be incidental to and included in the various bid items. 7-14.3(7) Remove and Salvage Hydrant Section 7-14.3(7) is added as follows: Existing hydrants shall be removed where shown in the Plans. Removed hydrants shall be delivered to the District shops by the Contractor. The existing hydrant lateral tee shall be removed from the main. Unless a specific bid item has been included in the Proposal/Contract Document, resetting existing hydrants shall be incidental to and included in the various bid items. 7-14 Hydrants City of Renton 1-209 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 7-14.3(8) Abandoned Valves Section 7-14.3(8) is added as follows: All valves to be abandoned shall be abandoned in the closed position, unless shown otherwise, by removing a minimum of the top twenty-four inches of the valve box and then filling the bottom of the box with a minimum of 8-inches of sand. The remaining portion of the valve box shall be filled with concrete having an f’c of at least 2000 psi. Unless a specific bid item has been included in the Proposal/Contract Document, Abandoned Valves shall be incidental to and included in the various bid items. 7-14.3(9) Water Main-Cut and Cap Section 7-14.3(9) is added as follows: The lateral must be cut within one-foot of the abandoned valve, or as shown on the plans, and capped. The contactor shall cut the existing pipe where shown on the drawing and install an approved ductile-iron cap complete with thrust block. Where a joint or coupling in the existing pipe is uncovered at the cut and cap location, the installation of a plug may be permitted with the project manager for the City of Renton Water system. A concrete thrust block shall be installed at all cap and plug locations. Unless a specific bid item has been included in the Proposal/Contract Document, Water Main Cut and Cap shall be incidental to and included in the various bid items. END OF SECTION 7-14 7-15 Service Connections City of Renton 1-210 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 7-15 SERVICE CONNECTIONS 7-15.1 Description (******) Supplement this section as follows: The Contractor shall mark anticipated locations of services in the field using paint or driven nails a minimum of two (2) working days in advance of construction. Markings shall be refreshed as necessary. The existing water services shall remain in service at all times during construction. Soos Creek Water and Sewer District utility customers shall remain in service at all times, unless specified by District. The Contractor shall not disconnect any existing water services without prior approval of District. 7-15.2 Materials (******) Supplement this section as follows: New plastic service lines shall be SIDR-7 250 Poly Pipe, Hi-Mol, or approved equal and shall conform to the Drawings, Standard Details and Sections 9-30.6 and 9-30.6(3)B of the Standard Specifications. Connections from pipe to meter setters and corporation stops shall be with grip joint couplings with stiffener inserts. Tracer wire shall be 14-gauge copper, plastic-coated. All valves and fittings shall be cast from domestic water works brass conforming to AWWA C800-89, as manufactured by Ford, Mueller, or approved equal. 7-15.3 Construction Requirements (******) Supplement this section as follows: Mark anticipated service locations in advance of construction as specified above. Construction shall be as described in the Bid item for ductile iron pipe in these specifications. Services shall be 1-inch diameter unless called out otherwise on Drawings and shall be continuous and un-spliced from the corporation stop to the meter setter with sand bedding 6 inches all around. Services shall be tested with the main line. Any water services that are broken during the construction of the water main shall be replaced, unspliced, from the corporation stop to the meter setter. Water services shall be installed at a location and elevation as determined by the District or as indicated on the Plans. The Contractor shall not backfill any service lines until all brass fittings associated with that service line have been inspected and accepted by the District. Service shall pass under storm sewer when required to maintain 3-foot minimum cover over top of service. There shall be not less than a 6-inch cushion between the service and the storm sewer. 7-15 Service Connections City of Renton 1-211 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Expansion loops are to be held as flat as possible with no reverse grade. Water main service saddle, corporation stop, and grip joint coupling with stiffener insert shall be located at approximately 10° above spring line per the standard detail shown on the Drawings. Tracer wire shall be installed with the service line and bare wire shall be attached to meter setter and corporation stops. Reconnection of service to property owner’s service shall be completed by The Contractor after new main and services have been successfully tested, disinfected, and accepted by District. The Contractor shall not disconnect any existing water services without prior approval of District. The Contractor shall coordinate with OWNER for the movement of the existing water meters.. The existing water services shall be left on the existing water main, until the new water main has passed the pressure and purity tests. Once acceptable tests have been obtained, The Contractor shall then switch the water services to the new main. The Contractor shall remove that portion of the old water service including the angle stop to a point approximately 2-feet outside new meter box but staying within the right of-way unless otherwise directed by District. Care shall be exercised to ensure that the existing service associated with each residence is transferred to the new service serving the same residence. The Contractor shall furnish and install any fittings required to connect the new services to the existing private services. The Contractor shall restore the surface around the new water service and meter box once the new services have been connected. Surface restoration to include, but not be limited to, topsoil, crushed rock, or other materials as exist in kind, and no extra payment shall be made for this Work. Existing meter boxes with radio antennas installed shall have the antennas and antenna wiring protected at all times during construction. Any damage to the radio or wiring as a result of Contractor’s construction operations will result in the Contractor being billed for a new radio and the OWNER’S install rate, to be billed as a change order to the Contractor for each damaged or destroyed radio or wiring. Radio antennas shall be reinstalled per the Plans. 7-15.4 Measurement (******) Delete and replace this section as follows: Water services shall be measured per each type of service actually installed. Each water service shall include all pipe and fittings from the water main to and including the meter box. "Near" side services shall include all services which extend to the edge of the right of way nearest the new water main. "Far" side services shall include all services which extend to the edge of the right of way on the far side of the water main. 7-15 Service Connections City of Renton 1-212 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions END OF SECTION 7-15 7-17 Sanitary Sewers City of Renton 1-213 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 7-17 SANITARY SEWERS 7-17.2 Materials (******) Delete and replace this section as follows: Gravity sewer pipe shall be as specified herein and as shown on the Plans. The Contractor shall provide two copies of the pipe manufacturer’s technical literature and tables of dimensional tolerances to the Engineer. Any pipe found to have dimensional tolerances in excess of those prescribed or having defects, which prevent adequate joint seal or any other damage, shall be rejected. If requested by the Engineer, not less than three nor more than five lengths of pipe for each size, selected from stock by the Engineer, shall be tested as specified for maximum dimensional tolerance of the respective pipe. Materials shall meet the requirements of the following sections: SDR 35 Sewer Pipe (ASTM D3034 & ASTM F679) Section 9-05.12(1) Ductile Iron Sewer Pipe Section 9-05.13 C900 PVC Sewer Pipe (AWWA) Section 9-30.1(5)A All pipe shall be clearly marked with type, class, and thickness. Lettering shall be legible and permanent under normal conditions of handling and storage. Gravity sewers and services shall be constructed of PVC pipe conforming to Section 9- 05.12 of the Standard Specifications unless required otherwise by the District. PVC gravity sewer main and PVC gravity sewer service pipe shall be considered flexible conduit. PVC compound shall meet the requirements of ASTM D 1784 for Class 12454-B PVC. Ductile iron pipe (class 52) may be used in lieu of PVC pipe provided the ductile iron pipe is lined with epoxy, polyurethane, or SewperCoat as manufactured by Kerneos Aluminate Technologies or approved equal. All linings shall be applied per the manufacturer's recommendations. A. Lined ductile iron pipe shall have the lining applied to all exposed interior surfaces per the manufacturer's recommendations. B. Polyurethane linings shall consist of polyisocyanate resin and polyol resin mixed at a 1:1 ratio at the time of the application and applied to a dry film thickness of 40 mils (0.040 inches). Coating thickness within the bell socket interior and on the spigot end of the pipe exterior shall be 8 mils (0.008 inches) nominal with a maximum thickness of 10 mils (0.010 inches) in order to minimize potential dimensional assembly problems. Thicker coats may be allowed provided final dimensions are within allowable tolerances after the coating. The lining shall provide an ASTM D16 Type V system. C. Sewpercoat is a calcium aluminate mortar made of fused calcium aluminate and calcium aluminate aggregates. The lining shall be applied to a thickness of 125 mils (0.125 inches) for 12-inch and smaller diameter pipes and 3/16 inches for pipes larger than 12 inches in diameter. Cracks in the lining, other than closed hairline cracks and/or fine crazing are not acceptable. A seal coat shall be applied to any Sewpercoat lining. 7-17 Sanitary Sewers City of Renton 1-214 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions D. The exterior of all ductile iron pipes shall be coated with 1 mil (0.001 inches) of bituminous paint according to ANSI/AWWA C151/A21.51. E. Sewer Force Main pipe shall conform to the requirements of Section 17-7.2 Materials for Ductile Iron pipe and shall be Class 52. Force Main Ductile Iron pipe shall be lined with Protecto 401 or approved equal, and applied to a minimum dry film thickness of 40mils. 7-17.3 Construction Requirements 7-17.3(1) Protection of Existing Sewerage Facilities (******) Supplement this section as follows: When extending an existing sewer, the downstream system shall be protected from construction debris by placing a screen or trap in the first existing manhole downstream of the connection. It shall be the Contractor's responsibility to maintain this screen or trap until the new system is placed in service and then to remove it. Any construction debris, which enters the existing downstream system, shall be removed by the Contractor at his expense, and to the satisfaction of the Engineer. When the first manhole is set, its outlet shall be plugged until acceptance by the Engineer. 7-17.3(1)A Temporary Sewer Bypass Systems It shall be the Contractor's responsibility to maintain operation of the existing sewer systems throughout the duration of the project without any interruption of sewer service. The Contractor shall divert all flows around each segment of the pipe designated for rehabilitation. This diversion shall consist of redirecting flow from an upstream manhole and discharging it to a manhole downstream of the rehabilitation operation. This can be accomplished via a combination of pumping and/or gravity flow. After the work is completed, flow shall be returned to the sewer system. The area affected by the bypass operation shall be fully restored. Bypass pumping shall be scheduled for continuous operation. Back-up equipment shall be on-site and available for periods of maintenance, refueling or failure of the primary bypass pump(s) or diversion system. Bypass pumping shall be done in such a manner as not to damage private or public property or create a nuisance or public menace. The bypass- pumping pipe shall not block any driveways or intersections unless approved by the Engineer. The sewage shall be pumped through a watertight hose or pipe that is adequately protected from traffic. The discharge of raw sewage to private property, city streets, sidewalks, storm sewer, or any location other than an approved sanitary sewer is prohibited. The Contractor shall be liable for all cleanup, damages, and resultant fines should the Contractor's operation cause any backups or overflows. The Contractor's bypass operation shall be sized to handle, at a minimum, the full pipe capacity in each subject line removed from service. If flow conditions are greater than full pipe, the Contractor may elect to wait for flow conditions to subside prior to removing the subject line from service. Working days will not be charged for the period of time during which the flow is greater than full pipe. No additional payment will be made for periods of high flows during which the Contractor elects to wait for lower flows. Once the Contractor removes a section of line from service he/she is responsible to bypass any and all flow in 7-17 Sanitary Sewers City of Renton 1-215 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions the system during construction, even in the event the system surcharges and exceeds the full pipe capacity, until the line is returned to service. All bypassing systems shall be approved by the Engineer. A plan for bypassing the existing sewer system shall be submitted by the Contractor for review. The Contractor's plan for bypass pumping shall be satisfactory to the Owner before the Contractor will be allowed to commence bypass pumping. The sewage bypass pumping plan shall include an emergency response plan to be followed in the event of a failure of the bypass pumping and a security plan for continued operation and protection of the bypass system. The review of the bypassing system and equipment by the Engineer shall in no way relieve the Contractor of his responsibility and public liability. The Contractor shall coordinate activities with impacted property owners. Property Owners shall be notified that their side sewer will be out of service for a specified period of time, as approved by the Engineer. Where there exist a situation where impacted properties cannot be disconnected, plugged, or subjected to any other service interruption, i.e. hospitals, care facilities, restaurants, etc., bypass pumping of the side sewer to the downstream sanitary sewer system shall be required. The contractor shall verify whether a property is able to be interrupted prior to bypassing operations. 7-17.3(2) Cleaning and Testing (******) Supplement this section as follows: Gravity sewers and appurtenances shall be tested after backfilling by the low-pressure air method in accordance with Section 7-17.3(2) of the Standard Specifications, except where the ground water table is such that the District may require the infiltration test. Final acceptance of the sewer main installation will be subject to the District's Resolution No. 1904-S, which allows a maximum ponding depth of 3/4-inch. In the event of conflicts between the standards established in Resolution No. 1904-S and the standards specified in Section 7-17.3(2) of the Standard Specifications, the standards of the Resolution will take precedence. 7-17.3(2)H Television Inspection (******) Supplement this section as follows: CCTV Inspection: 1. All newly installed and newly-rehabilitated (public and private) Sanitary Sewer and Storm Drain main lines shall be inspected by means of remote CCTV. CCTV inspections and reports shall be submitted to the City of Renton inspector assigned to the project prior to receiving approval to install project curbs, gutters and/or pavement. 2. The Contractor shall perform all CCTV inspections in accordance with the National Association of Sewer Service Companies (NASSCO) Pipeline Assessment Certification Program (PACP). 3. All CCTV operators shall have current NASSCO PACP certification. 7-17 Sanitary Sewers City of Renton 1-216 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 4. CCTV inspections shall be recorded in a GraniteNet compatible format database using the latest software version and submitted with electronic links between the data and the video on an External HDD, DVD or Flash Drive. 5. All CCTV inspection reports shall be within +/- two (2) feet of the measured linear footage between manholes along the existing pipeline centerline from the start of pipe to end of pipe. 6. All Owner and PACP required header information must be fully and accurately entered on all CCTV reports. Work not following these specifications will be rejected and the Contractor shall be required to re-CCTV the work. 7. The documentation of the work shall consist of PACP CCTV Reports, PACP database which will have a .MDB or .MDF file extension, logs, electronic reports, etc. noting important features encountered during the inspection. The speed of travel shall be slow enough to inspect each pipe joint, tee connection, structural deterioration, infiltration and inflow sources, and deposits, but should not, at any time, be faster than 30 feet per minute, except as noted otherwise in this document. 8. The camera must be centered in the pipe to provide accurate distance measurements to provide locations of features in the sewer and these footage measurements shall be displayed and documented on the video. All PACP Observations shall be identified by audio and on a PACP log. All video must be continuously metered from manhole to manhole. All video recording shall be continuous from structure to structure with no “pausing” of the video recording during each pipeline inspection. The pipe shall be cleaned prior to the CCTV inspection to ensure all defects, features and observations are seen and logged. 9. Just prior to beginning the CCTV inspection, while the CCTV camera is in place and recording, water (containing dye) shall be introduced into the upstream manhole of each pipe segment until it is observed and recorded flowing past the camera’s field of vision in its entirety. 10. The CCTV camera shall have a water-level measuring device (ball, cylinder, etc.) attached that has ¼” markings to show the depth of water in the pipe during the CCTV inspection. 11. All manholes shall be channeled and coated prior to CCTV inspection. 12. Per City of Renton specification 7-08.3(2)B, sewer and storm drain pipeline shall have no more than ½” of ponding to be considered acceptable. 7-17.3(2)I Abandon Existing Sanitary Sewer Pipes (******) This is a new section as follows: Where it is shown on the contract drawings, or where designated by the Engineer, existing sanitary sewer pipes shall be abandoned in place. Pipe main and laterals greater than 12- inches in diameter shall be abandoned by filling the pipe with a controlled density fill (CDF), or approved equivalent, for the full length of the abandoned pipe. Care shall be used in placing the fill within the pipe and that pipe condition is considered when placing material to fill pipe completely and thoroughly without causing failure. Where the abandoned in place pipe connects to an active existing manhole the pipe shall be filled flush with the pipe end or flush with the inside wall of the existing manhole. For pipes less than 12-inches in diameter, 7-17 Sanitary Sewers City of Renton 1-217 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions pipes shall be plugged for a distance of 2 diameters with commercial concrete as per Section 7-08.3(4). The mix design and method of installation shall be provided to the Project Engineer at least three (3) days prior to planning construction and approved by the Engineer prior to beginning the operation (See Section 9-03.22 for Controlled Density Fill requirements). END OF SECTION 7-17 7-18 Side Sewers City of Renton 1-218 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 7-18 SIDE SEWERS 7-18.2 Materials (******) Supplement this section with the following: Material of side sewers shall match that of the sewer main unless otherwise shown on the Plans or directed by the Engineer. 7-18.3(5) End Pipe Marker (******) Delete and replace this section as follows: The location of side sewers at the property line shall be indicated by the presence of a surface cleanout installed per the associated City of Renton Standard Plan. The Contractor shall survey and provide in the as-built drawings the location of all side sewer cleanouts, or if no cleanout is shown in the Plans, the location of the tie-in to the existing side sewer. END OF SECTION 7-18 7-19 Sewer Cleanouts City of Renton 1-219 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 7-19 SEWER CLEANOUTS 7-19.3 Construction Requirements (******) Delete and replace this section as follows: Sewer cleanouts shall be installed per the associated City of Renton Standard Plan(s). 7-19.4 Measurement (******) Delete and replace this section as follows: Sewer cleanouts that are installed on sewer main lines will be measured per each. Sewer cleanouts that are installed on side sewers shall be considered incidental to the side sewer pipe. END OF SECTION 7-19 END DIVISION 7 DIVISION 8 MISCELLANEOUS CONSTRUCTION City of Renton 1-220 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 8-02 ROADSIDE RESTORATION 8-02.3 Construction Requirements 8-02.3(4)A Topsoil Type A (******) Supplement this section as follows: The contractor shall provide a material submittal for topsoil prior to use. 8-02.3(11)B Bark or Wood Chip Mulch (******) Supplement this section as follows: Bark or wood chip mulch shall not be placed in areas of standing or flowing water. 8-02.3(17) Lawn Installation (******) This is a new section as follows: 8-02.3(17)A Qualifications of Workmen Provide at least one person who shall be present at all times during execution of the Work and who shall be thoroughly familiar with the type of materials being installed and the best methods for their installation and who shall direct all work performed under this section. 8-02.3(17)B Submittals 8-02.3(17)B1 Certification of Material Include seed mix percentages, purity, germination rates, weed experience, and date tested for the preceding. Include complete data on source, size and quality. Supply on-site 12” x 12” sample of each sod specified for inspection and approval in advance by the City. Supply Grower’s written recommendations for fertilizer type, rate of application, and frequency. All certificates required by law shall accompany shipments. Upon completion of the installation and prior to final inspection, deliver all certificates to the Engineer. 8-02.3(17)B2 Manufacturer’s Certificates of Conformance Supply for Certificates of Conformance for fertilizer being used for the project. 8-02.3(17)B3 Schedule for Installation The Contractor shall coordinate all work with the City and submit a watering plan for the Establishment Period. 8-02 Roadside Restoration City of Renton 1-221 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 8-02.3(17)C Product Handling Deliver all items to the site in their original containers, with all labels intact and legible, at the time of the City’s inspection. Coordinate delivery and installation of sod to ensure sod is installed immediately upon delivery. Use all means necessary to protect new lawn areas before, during, and after installation and to protect the installed work and materials of all other trades. In the event of damage or rejection, immediately make all repairs and replacements necessary for the approval of the Inspector and at no additional cost to the City. 8-02.3(17)D Site Information If sod is stored onsite, preserve and protect all sod on site prior to and during installation. Protect from wind, drought, unusual weather and vandalism. Store all sod on site within limits of work. Protect adjacent property, public walks, curbs and pavement from damage. Do not block public access routes with plant material. 8-02.3(17)E Sod The Contractor shall provide sod to all new lawn areas and to those lawn areas requiring restoration from the Contractor’s operations. Sod shall conform to section 9-14.6(8) as shown in the Special Provisions. 8-02.3(17)E1 Other Materials All other materials not specifically described but required for a complete and proper planting installation, shall be selected by the Contractor subject to the approval of the Engineer. 8-02.3(17)F Execution Prior to all work of this section, carefully inspect the installed work of all other trades and verify that all such work is complete to the point where this installation may properly commence. Verify that lawn installation may be completed in accordance with the original design and the referenced standards. In the event of discrepancy, immediately notify the Engineer for specific instructions. 8-02.3(17)F1 Installation Preparation Prepare subgrade in all lawn areas by scarifying to a 8” minimum depth and removing rocks and debris over 1” in diameter. Subgrade soils should be free-draining and without any impervious soils or other materials harmful to plant growth. Notify the Inspector of any subgrade conditions deleterious to plant growth. Spread topsoil to a minimum depth of 6” after settlement in all lawn areas. Thoroughly rototill topsoil to a minimum depth of 6 inches. Fine grade per Contract Specifications in turf areas as indicated on drawings. Rake entire surface to conform to site grading. Grade edges to 1” below adjacent paved surfaces to provide a smooth transition. Roll as necessary to firm grade to satisfaction of the Inspector. Apply fertilizer to the prepared lawn areas at rates recommended by sod grower and lightly rake to incorporate into the soil. 8-02 Roadside Restoration City of Renton 1-222 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 8-02.3(17)F2 Sod Installation Moisten sod bed and roll lightly for compaction. Lay sod strips per supplier’s instructions. Tightly butt joints, trim edges to conform to smooth curves and straight lines of pavement. Sod is to be flush with paved surfaces after settlement. Avoid gaps and overlaps and stagger sod joints in a brick-like fashion. Remove any bumps, undulations, or low-high spots with a light rolling. Water daily for a minimum of two weeks to prevent dehydration. Protect all turf areas by erecting temporary fences, barriers, signs, etc. as necessary to prevent trampling. Do not work in, over, or adjacent to planting areas without proper protection and safeguards. 8-02.3(16)G Lawn Establishment and Final Acceptance The Contractor shall maintain all new lawn areas in this project; shall be responsible for the survival of turf in acceptable condition and shall maintain all new lawn areas in a neat and orderly fashion until Final Acceptance of the project by the City. The period for Final Acceptance shall be no sooner than the second mowing. The Contractor will be held responsible for all damage or loss caused by his inattention or carelessness. The Contractor shall repair damage caused by traffic, vandalism, weather or other outside causes. 8-02.3(16)G1 Establishment Period The Establishment Period will commence on the date of Preliminary Acceptance and will extend to Substantial Completion or Final Acceptance by the City of landscape work, whichever is later. Maintenance during this period will include: 1. Watering: Water areas of new turf so they receive adequate water for survival of the plant in a healthy position. 2. Lawns shall be fertilized every six weeks from March through September per Grower’s written recommendations. Lawns shall be maintained weed-free. 3. Lawns are to be mowed weekly or as needed to maintain a neat appearance. All grass clippings shall be removed from the site. Maximum height of lawn shall not exceed three inches. 4. Protect all lawn areas against damage, including erosion and trespassing, by providing and maintaining proper safeguards. 5. Debris Control: Debris control shall be accomplished in all landscaped lawn areas on a regular basis, at least weekly or more often where necessary. This will include leaf fall control in Fall period. Policing for paper and litter in all areas shall be conducted at least weekly. During the Fall period leaves, windblown into gutters and catch basins, are considered as litter and shall be removed as debris. 8-02.3(16)G2 Guarantee All new turf areas shall be guaranteed by the Contractor to be in a healthy condition for a period of one year from the date of Final Acceptance. 8-02 Roadside Restoration City of Renton 1-223 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 8-02.3(16)G3 Final Acceptance Acceptance of lawn planting as specified shall be based on a uniform stand of grass and a uniform grade at the time of final inspection. Final inspection of the work of the Section will be made at the time of the Final Inspection of the entire project or earlier, if approved by the Engineer. A final punch list will be issued. Final Acceptance of the new turf areas which are the responsibility of the Contractor will be contingent upon Final Acceptance of the entire project or at the determination of the City if earlier than Final Acceptance of the entire project. END OF SECTION 8-02 8-04 CURBS, GUTTERS AND SPILLWAYS City of Renton 1-224 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 8-04 Curbs, Gutters, and Spillways 8-04.3 Construction Requirements 8-04.3(1)C Mountable Cement Conc. Traffic Curb (******) This is a new section as follows: The Mountable Cement Conc. Traffic Curb shall be constructed following the City Standard Plan H015 for Traffic Circles as provided in the Plans. 8-04.5 Payment Supplement this section as follows: The unit Contract price per linear foot for “Mountable Cement Conc. Traffic Curb” shall be full payment for all costs for the specified Work including, but not limited to rebar, dowels, and lane markers as shown in the Plans and City Standard Plan. END OF SECTION 8-04 8-05 Pre- and Post- Construction Photographs and Video Inspection City of Renton 1-225 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 8-05 PRE- AND POST- CONSTRUCTION PHOTOGRAPHS AND VIDEO INSPECTION (******) This is a new section as follows: 8-05.1 Materials The photographs shall be in digital .pdf, .png., or .jpeg format labeled by approximate site address. Video files shall be in .mp4 or .avi formats labeled with the appropriate site address, street name, or another identifiable descriptor approved by the Engineer. The Contractor shall provide one USB thumb drive or flash drive to the Engineer with the entire catalog of pre-construction and post-construction photographs and videos. 8-05.2 Construction Requirements Before commencing any construction work, the Contractor shall provide photographs of pre- existing conditions of the area that will be disturbed during construction operations to the Engineer. These photos will help document the condition of existing conditions and landscaping and help determine the level of restoration required. Photographs shall be obtained as follows: In easements, streams, steep slopes, landscaped areas and other off of right-of-way locations: 10-foot intervals. In the paved right-of-way, paved driveways and parking lots 10-foot intervals. Near buildings, document the exterior condition including any signs of distress such as cracks, spalling, settlement, flooding, leaking, etc. Interior walls, columns, and beams of buildings less than 20-ft from the edge of the excavation, including any signs of distress such as cracks, spalling, settlement, flooding, leaking, etc. Coordinate access with the City and Property Owner. Additional locations as necessary to fully document site conditions and to satisfy permitting requirements. Any other location as directed by the Engineer. Following construction, the Contractor shall take photographs of post-construction conditions in the same manner. Prior to commencing any construction work, the Contractor shall walk the property with the Engineer taking continuous video of pre-existing conditions. Locations to be videoed include, but are not limited to: Critical areas Vegetative areas Streets within the project impact area: Known easements Work zones on private property Any other location as directed by the Engineer. 8-05 Pre- and Post- Construction Photographs and Video Inspection City of Renton 1-226 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Following construction, the Contractor shall provide post-construction video inspection of the same locations surveyed prior to construction. END OF SECTION 8-05 8-13 Monument Cases City of Renton 1-227 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 8-13 MONUMENT CASES 8-13.3 Construction Requirements (******) Revise paragraphs 4 in this section as follows: The monument will be furnished and set by the Contractor supplied Surveyor. (******) Supplement this section as follows: When existing monuments will be impacted by a project, the Contractor shall be responsible for assuring that a registered surveyor references the existing monuments prior to construction. After construction is complete, the monuments shall be re-established by the Surveyor in accordance with RCW 58.09.130. END OF SECTION 8-13 8-14 Cement Concrete Sidewalks City of Renton 1-228 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 8-14 CEMENT CONCRETE SIDEWALKS 8-14.2 Materials (******) Supplement this section as follows: The Contractor shall use one of the detectable warning surface products listed in the WSDOT Qualified Products List. The detectable warning surface shall have the truncated dome shape shown in WSDOT Standard Plan F-45.10. The detectable warning shall be dark red/colonial red and shall match SAE AMS Standard 595, color number 20109. 8-14.3 Construction Requirements (******) Supplement this section as follows: The Contractor shall request a pre-meeting with the Engineer to be held 2 to 5 working days before any work can start on cement concrete sidewalks, curb ramps or other pedestrian access routes to discuss construction requirements. Those attending shall include: 1. The Prime Contractor and Subcontractor in charge of constructing forms, and placing, and finishing the cement concrete. 2. Project Engineer (or representative) and Project Inspectors for the cement concrete sidewalk, curb ramp or pedestrian access route Work. Items to be discussed in this meeting shall include, at a minimum, the following: 1. Slopes shown on the Plans. 3. Inspection 4. Traffic control 5. Pedestrian control, access routes and delineation 6. Accommodating utilities 7. Form work 8. Installation of detectable warning surfaces 8-14.3(4) Curing (******) Delete and replace this section as follows: The curing materials and procedures outlined in Section 5-05.3(13) of the Standard Specifications shall prevail, except that white pigmented curing compound shall not be used on sidewalks. The curing agent shall be applied immediately after brushing and be maintained for a period of 5 days. The Contractor shall have readily available sufficient protective covering, such as waterproof paper or plastic membrane, to cover the pour of an entire day in the event of rain or other unsuitable weather. During the curing period, all traffic, both pedestrian and vehicular, shall be excluded. Vehicular traffic shall be excluded for such additional time as the Engineer may specify. 8-14 Cement Concrete Sidewalks City of Renton 1-229 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions The Contractor shall be responsible for barricading, patrolling, or otherwise protecting the newly placed concrete to prevent damage. Damaged, vandalized, discolored, stained, or unsightly concrete shall be removed and replaced at the expense of the Contractor. END OF SECTION 8-14 8-21 Permanent Signing City of Renton 1-230 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 8-21 PERMANENT SIGNING 8-21.2 Materials Section 8-21.2 is supplemented with the following: (******) Materials shall meet the requirements of the following sections as applicable unless noted: Painting 6-07 Permanent Signing 8-21 Signing Materials and Fabrication 9-28 Lettering and border graphics shall be white, non-reflective, in an opaque, white 2-mil cast vinyl adhesive graphic film with matte finish, clear, removable, pressure-sensitive adhesive (solvent acrylic) for exterior signage application and have a life performance of (7) years durability, UV resistant, chemical and moisture resistant. Sign Name Signs shall have 2-mil cast vinyl adhesive graphic film with matte finish, clear, removable, pressure-sensitive adhesive (solvent acrylic) for exterior signage application and have a life performance of (7) years durability, UV resistant, chemical and moisture resistant, applicable for color printing application. Aluminum sheet shall conform to ASTM B209M – 07 Standard Specification for Aluminum and Aluminum Alloy Sheet and Plate. Fasteners to secure sign plates into places shall be Type 316 stainless steel. Zinc-plated fasteners with coating complying with ASTM B 633, Class FE/ZN 5. Custom colored digitally printed logo shall have coefficient of retroreflection varying between that of the base sheeting as given in Table B, and zero (opaque) depending on the hue and saturation (or chromaticity and lightness) of the custom color. Conformance to standard chromaticity and luminance factor requirements shall be in accordance with ASTM E1164. Conformance to coefficient of retroreflection requirements shall be in accordance with ASTM E810 “Test Method for Coefficient of Retroreflection of Retroreflective Sheeting”. Minimum percentage of retroflection retained after 8 years shall be minimum of 70%. Adhesive and film properties shall be applied to test panels and conditioned in accordance with ASTM D4956 and test methods and conditions shall conform to ASTM D4956. The following properties shall conform to the requirements in ASTM D4956: 1. Adhesion 2. Outdoor weathering - retained coefficient of retroreflection- colorfastness 3. Shrinkage 2. Flexibility 3. Liner removal 4. Impact resistance Gloss test method shall be in accordance with ASTM D523. Rating shall not be less than 50. Optical stability of the sheeting shall retain a minimum of 85% and a maximum of 115% of the original coefficient of retroreflection. 8-21 Permanent Signing City of Renton 1-231 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Street Name Signs on signal mast arms shall be provided with a warranty for signs made with custom colors. The areas of the signs featuring custom colors shall be warrantied against excessive fading, discoloring, cracking, crazing, peeling, blistering and loss of reflectivity such that signs become visually unsuitable for their intended purpose for a period of eight years. 8-21.3 Construction Requirements (******) Section 8-21.3 is supplemented with the following: Surface of street name sign plate shall be prepared by sheeting manufacturer’s recommendations. Vinyl adhesive graphic film shall be positioned at zero degree application angle at +4°C minimum (air and substrate) per manufacturer’s recommendation. Sign Code Numbers indicated on the Plans are in reference to the Washington State Department of Transportation Sign Fabrication Manual and the Manual on Uniform Traffic Control Devices (MUTCD). Upon completion of the project, the Contractor shall reset all signs that have been disturbed or removed during the construction in their permanent location to the satisfaction of the City. Relocated signs noted on the Plans shall be installed on new metal posts. Location for relocated signed shall be confirmed with City inspector. Existing concrete at the base of signpost shall be removed prior to installation in new concrete. All costs associated with resetting, relocation and removal & replacement of existing signs shall be included in the lump sum “Permanent Signing”. Any sign that is relocated or reinstalled shall be bought up to current City Of Renton Standard. The Contractor shall coordinate with King County Metro for the removal and relocation of all bus stop signs within the project area. Any damage due to the Contractor’s negligence before the end of the project shall be replaced by the Contractor with no additional compensation allowed. Any damage due to the Contractor’s negligence before the end of the project shall be replaced by the Contractor with no additional compensation allowed. The Contractor shall request from the Engineer electronic graphic files prior to street name sign samples approval. The Contractor shall provide graphic artwork, catalog cut sheet and a full scale sample of all street name signs mounted on signal mast arms for Engineer’s approval, prior to manufacturing. The Contractor shall provide three (3) copies of shop drawings for fabrication, fastening locations, and installation of all street name sign types prior to fabrication, for Engineer’s approval. END OF SECTION 8-21 8-22 Pavement Marking City of Renton 1-232 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 8-22 PAVEMENT MARKING 8-22.1 Description (******) Section 8-22.1 is supplemented with the following: Crosswalk Stripe A SOLID WHITE line, 8 inches wide and 10-feet long, installed parallel to another crosswalk stripe and parallel to the direction of traffic flow and centered in pairs on lane lines and the center of lanes. See Renton Standard Plans 127 and 128. Skip Center Line A BROKEN YELLOW line 4 inches wide. The broken or “skip” pattern shall be based on a 24-foot unit consisting of a 9-foot line and a 15-foot gap. Skip center strip is used as centerline delineation on two-lane or three-lane, two-way highways. See Renton Standard Plan 109. Double Yellow Center Line Two SOLID YELLOW lines, each 4 inches wide, separated by a 4-inch space. Double yellow center stripe is used as centerline delineation on multilane, two-way highways and for channelization. See Renton Standard Plan 109. Approach Line A SOLID WHITE line, 8 inches wide, used to separate left and right turning movements from through movements, to separate high occupancy vehicle lanes from general-purpose lanes, for islands, hash marks, and other applications. Hash mark stripes shall be placed on 45- degree angle and 10 feet apart. See Renton Standard Plan 109. Lane Line A BROKEN WHITE line, 4 inches wide, used to delineate adjacent lanes traveling in the same direction. The broken or “skip” pattern shall be based on a 24-foot unit consisting of a 9-foot line and a 15-foot gap. See Renton Standard Plan 109. Two Way Left Turn Line A SOLID YELLOW line, 4 inches wide, with a BROKEN YELLOW line, 4 inches wide, separated by a 4-inch space. The broken or “skip” pattern shall be based on a 24-foot unit consisting of a 9-foot line and a 15-foot space. The solid line shall be installed to the right of the broken line in the direction of travel. See Renton Standard Plan 109. Stop Line A SOLID WHITE line 16 inches wide, See Renton Standard Plan 128. Where existing markings will remain immediately adjacent to new markings of the same type, verify the existing markings match the standards described herein. If the existing markings are not standard notify the Engineer for a determination of how the new marking shall be made. 8-22 Pavement Marking City of Renton 1-233 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Pavement markings shall conform to the following WSDOT Standard Plans and City of Renton Standard Plans: COR 109 PAVEMENT MARKING NOTES COR 127 MID-BLOCK CROSSWALK AND STOP BAR PAVEMENT MARKINGS COR 128 INTERSECTION CROSSWALK AND STOP BAR PAVEMENT MARKINGS M-3.10-04 LEFT TURN CHANNELIZATION M-3.20-03 LEFT-TURN CHANNELIZATION REDUCED TAPERS M-3.30-04 LEFT-TURN CHANNELIZATION TEE INTERSECTION AND BACK-TO- BACK TURN LANES M-3.40-04 TWO-WAY LEFT-TURN AND MEDIAN CHANNELIZATION M-3.50-03 DOUBLE LEFT TURN CHANNELIZATION M-5.10-03 RIGHT TURN CHANNELIZATION M-9.50-02 BICYCLE LANE SYMBOL LAYOUT M-9.60-00 SHARED - USE PATH MARKINGS M-11.10-03 RAILROAD CROSSING LAYOUT M-12.10-02 ROUNDABOUT PAVEMENT MARKINGS M-20.10-03 LONGITUDINAL MARKING PATTERNS M-20.20-02 PROFILED AND EMBOSSED PLASTIC LINES M-24.20-02 SYMBOL MARKINGS ~ TRAFFIC ARROWS FOR HIGH-SPEED ROADWAYS M-24.40-02 SYMBOL MARKINGS ~ TRAFFIC ARROWS FOR LOW-SPEED ROADWAYS M-24.60-04 SYMBOL MARKINGS MISCELLANEOUS 8-22.2 Materials The third sentence Section 8-22.2 is deleted and replaced with the following: (*****) Glass beads for Type A plastic shall be as recommended by the manufacturer. Section 8-22.2 is supplemented with the following: (*****) Glass beads for Type D plastic and Bonded Core Elements shall be as shown in Section 9- 34.4. 8-22.3 Construction Requirements Section 8-22.3 is supplemented with the following: Contractor shall notify the Engineer and request approval of the pre-mark channelization at least 48 hours prior to placement of pavement markings. Pavement symbols, crosswalk markings, and stop bars shall not consist of hydrocarbon thermoplastic, unless otherwise approved by the City. Thermoplastic shall contain 3M 50/50 wet/dry elements. If installed on concrete, pavement symbols, crosswalk markings, and stop bars shall be 3M Stamark All Weather Tape 380AW Series, or approved equal. 8-22 Pavement Marking City of Renton 1-234 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Temperature needs to be above 40 degrees and dry for a minimum of 48 hours before any markings can be applied. 8-22.3(3)E Installation Section 8-22.3(3)E is modified as follows: When applying paint, Type A or Type C material, ensure that both the pavement surface and the air temperature at the time of application are not less than 50°F and rising. When applying Type B or Type D material, ensure that both the pavement surface and the air temperature at the time of application are not less than 50°F and rising. Section 8-22.3(3)E is supplemented with the following: Profiled Type D lines shall be installed per WSDOT Standard Plan M-20.20-01. 8-22.3(3)G Glass Beads Section 8-22.3(3)G is supplemented with the following: Glass beads shall be applied to Type D markings at a rate of eight (8) to ten (10) pounds per one hundred square feet. Bonded core elements shall be applied to Type D markings at a rate of ten (10) grams per four (4) inch wide by one (1) linear foot of marking. 8-22.3(3)H Speed Cushion Chevron This is a new section: Speed cushion chevrons shall be Type B plastic and shall be constructed in accordance with the Contract Documents. 8-22.3(3) Marking Application Section 8-22.3(3) is supplemented with the following: Paint applied over an existing paint marking shall require a single application meeting the requirements for the second coat of paint. 8-22.3(5) Installation Instructions (******) Section 8-22.3(5) is revised as follows: A manufacturer’s technical representative need not be present at the initial material installation to approve the installation procedure. 8-22.3(6) Removing Pavement Markings (******) Section 8-22.3(6) is supplemented with the following: 8-22 Pavement Marking City of Renton 1-235 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Existing pavement markings within the construction limits, including stop bars, traffic arrows, lane markers, and raised pavement markers shall be removed prior to overlaying the roadway surface. All conflicting channelization shall be removed as necessary by sand blasting to install temporary pavement markings or after the final channelization has been installed. Removal of existing pavement markings shall be conducted using such methods to prevent damage to the remaining pavement. The use of chemicals that may be harmful to the pavement will not be allowed. Damaged pavement shall be replaced at the Contractor’s cost. END OF SECTION 8-22 8-23 Temporary Pavement Markings City of Renton 1-236 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 8-23 TEMPORARY PAVEMENT MARKINGS 8-23.3 Construction Requirements (******) Section 8-23.3(2) is supplemented with the following: The Contractor shall perform preliminary layout work to the satisfaction of the Engineer prior to installation of temporary pavement markings. After approval of permanent lane markings, the Contractor shall remove the temporary lane markings to the satisfaction of the Engineer. The Contractor shall install and remove approved 4 inch wide reflective traffic tape for temporary pavement markings as specified in the Plans, these Special Provisions, or as directed by the Engineer. Replace Section 8-23.3(4)A with the following: Temporary pavement markings – short duration shall be in accordance with the Standard Plans and meet the following requirements: Temporary Center Line and Lane Line – Appropriately colored BROKEN yellow 4-inch-wide reflective traffic tape shall be installed with a skip pattern based on a 10-foot unit consisting of a 1-foot line of tape and a 9-foot gap, unless otherwise specified on the Plans or in the Special Provisions. Temporary Edge Line – A SOLID continuous line shall be used on the edges of Traveled Way, including bike lane lines. Temporary Miscellaneous Pavement Markings – A solid symbol or linear marking for traffic arrows, HOV lane symbols, and other markings made with white paint or tape. Symbols should mimic those shown in the Standard Plans. Reflective traffic tape markings shall generally follow the alignment for the permanent pavement markings and double lines shall be used when specified for the permanent pavement markings. Reflective tape shall not be used when the temporary pavement markings are to be exposed to traffic for more than two weeks without the written approval of the Engineer. Paint lines shall be provided for temporary pavement marking conditions not applicable for reflective tape. END OF SECTION 8-23 END DIVISION 8 DIVISION 9 MATERIALS City of Renton 1-237 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 9-03 AGGREGATES 9-03.8 Aggregates for Concrete 9-03.8(7) HMA Tolerances and Adjustments (******) Revise item 1 in this section as follows: 1. Job Mix Formula Tolerances and Specification Limits – The constituents of the HMA mixture at the time of acceptance shall conform to the following tolerances and specification limits: Job Mix Formula Aggregate Tolerance Limits Aggregate, Percent Passing Statistical Evaluation Non-Statistical Evaluation Visual Evaluation 1”, ¾”, ½”, and ⅜” sieves ± 6% ± 6% ±8% U.S. No. 4 sieve ± 5% ± 6% ±8% U.S. No. 8 sieve ± 4% ± 6% ±8% U.S. No. 200 sieve ± 2% ± 2% ±3% Voids in Mineral Aggregate (VMA) Tolerance Limit from the Minimum VMA Value in Section 9-03.8(2) HMA Test Requirements Statistical Evaluation HMA Class ⅜ inch ½ inch ¾ inch 1 inch -0.5% -0.5% -0.5% -0.5% Nonstatistical Evaluation: 1.5% below minimum value in 9-03.8(2) where non- statistical and statistical are synonymous for test requirements Specification Limits HMA Mix Property Statistical Evaluation Non-Statistical Evaluation Visual Evaluation Asphalt Binder -0.4% to +0.5% ±0.5% ±0.7% Air Voids, Va 2.5% minimum and 5.5% maximum These tolerance and specification limits constitute the allowable limits as described in Section 1-06.2. The tolerance limit for aggregate shall not exceed the limits of the control points, except the tolerance limits for sieves designated as 100 percent passing will be 99- 100. 9-03.22 Cement-based Grout for Abandoning Existing Utilities (Additional Section) (******) Section 9-03.22 is a new section: The Contractor shall submit a mix proposal that has flow characteristics appropriate for filling a utility pipeline. The mix proposal for “Cement-base Grout for Abandoning Existing Utilities” shall be approved by the Engineer prior to commencing work on this item. 9-03 Aggregates City of Renton 1-238 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Cement-based Grout for Abandoning Existing Utilities shall be equal to a 1-sack mix and the materials shall conform to the following: · Cement: This material shall be Portland cement as specified in section 9-01. · Aggregate: This material shall meet the requirements for fine aggregate as specified in section 9-03.1. · Water: Water shall conform to the provisions of Section 9-25.1. · Minimum Strength: 100 psi END OF SECTION 9-03 9-05 Drainage Structures, Culverts, and Conduits City of Renton 1-239 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 9-05 DRAINAGE STRUCTURES, CULVERTS, AND CONDUITS 9-05.4 Steel Culvert Pipe and Pipe Arch (******) Revise this section as follows: Steel culvert pipe and pipe arch shall meet the requirements of AASHTO M36, Type I and Type II. Zinc coated steel shall meet the material requirements of AASHTO M218 (ASTM A929). Aluminum coated steel shall meet the material requirements of AASHTO M274 (ASTM A929) and shall be asphalt treatment coated. 9-05.7 Concrete Storm Sewer Pipe 9-05.7(2) Reinforced Concrete Storm Sewer Pipe (******) Delete and replace this section as follows: Reinforced Concrete storm sewer pipe shall conform to the requirements of ASTM C-76 and shall be Class IV. Cement used in the manufacture of reinforced concrete pipe shall be Type II in conformance with ASTM C150. No admixture shall be used unless otherwise specified. 9-05.7(2)A Basis for Acceptance (******) Supplement this section as follows: All pipe shall be subject to (1) a three-edge-bearing strength (D-load) test in accordance with ASTM C76; and (2) a hydrostatic test of rubber gasket joints in accordance with ASTM C361 or AWWA C302 except test pressure shall be 5 psi. 9-05.7(3) Concrete Storm Sewer Pipe Joints (******) Delete and replace this section as follows: Joint assembly design shall be reinforced concrete bell and spigot type incorporating a fully retained single rubber gasket in accordance with ASTM C361 or AWWA C302. Rubber gasket material shall be neoprene. 9-05.7(4) Testing Concrete Storm Sewer Pipe Joints (******) Supplement this section as follows: Hydrostatic testing of rubber gasket joints shall be performed in accordance with ASTM C361 or AWWA C302 except test pressure shall be 5 psi. 9-05.9 Steel Spiral Rib Storm Sewer Pipe (******) Delete and replace this section as follows: The manufacturer of spiral rib storm sewer pipe shall furnish the Engineer a Manufacturer's Certificate of Compliance stating that the materials furnished comply in all respects with these Specifications. The Engineer may require additional information or tests to be performed by the Contractor at no expense to the City. 9-05 Drainage Structures, Culverts, and Conduits City of Renton 1-240 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Unless otherwise specified, spiral rib storm sewer pipe shall be furnished with pipe ends cut perpendicular to the longitudinal axis of the pipe. Pipe ends shall be cut evenly. Spiral rib pipe shall be fabricated either by using a continuous helical lock seam or a continuous helical welded seam paralleling the rib. Steel spiral rib storm sewer pipe shall be manufactured of metallic coated (aluminized or galvanized) corrugated steel and inspected in conformance with Section 9-05.4. The size, coating, and metal shall be as shown in the Plans or in the Specifications. For spiral rib storm sewer pipe, helical ribs shall project outwardly from the smooth pipe wall and shall be fabricated from a single thickness of material. The ribs shall be essentially rectangular and shall be 3/4 inch plus two times the wall thickness (2t) plus or minus 1/8 inch (measured outside to outside) and a minimum of 0.95 inch high (measured as the minimum vertical distance from the outside of pipe wall immediately adjacent to the lockseam or stiffener to the top surface of rib). The maximum spacing of the ribs shall be 11.75 inches center to center (measured normal to the direction of the ribs). The radius of bend of the metal at the corners of the ribs shall be a minimum of 0.10 inch and a maximum of 0.17 inch. If the sheet between adjacent ribs does not contain a lockseam, a stiffener shall be included midway between ribs, having a nominal radius of 0.25 inch and a minimum height of 0.20 inch toward the outside of the pipe. Pipe shall be fabricated with ends that can be effectively jointed with coupling bands. When required, spiral rib or narrow pitch spiral rib pipe shall be bituminous treated or paved. The bituminous treatment for spiral rib pipe shall conform to the requirements of Sections 9- 05.4(3) and 9-05.4(4). For narrow pitch spiral rib sewer pipe, the helical ribs shall project outwardly from the smooth pipe wall and shall be fabricated from a single thickness of material. The ribs shall be .375 inch + 1/8 inch wide (measured outside to outside) and a minimum of .4375 inch high (measured as the minimum vertical distance of ribs shall be 4.80 inches center to center (measured normal to the direction of the ribs). The radius of bend of the metal at the corners of the ribs shall be 0.0625 inch with an allowable tolerance of + 10 percent. 9-05.12(3) CPEP Sewer Pipe (******) This is a new section as follows: CPEP - Smooth interior pipe and fittings shall be manufactured from high density polyethylene resin which shall meet or exceed the requirements of Type 111, Category 4 or 5, Grade P33 or P34, Class C per ASTM D1248. In addition, the pipe shall comply with all material and stiffness requirements of AASHTO M294. 9-05.13 Ductile Iron Sewer Pipe 9-05.13(1) Ductile Iron Pipe Casing Zinc coated ductile iron pipe for pipe casing shall be Class 50, coated with 200 g/m2 pure metallic zinc coating in accordance with ISO 8179-1, with a standard asphaltic topcoat in accordance with AWWA C-151. Pipe shall be marked with the word ‘zinc’ in addition to the markings required by AWWA C-151. Scratches in the coating that occur during shipping or installation shall be repaired with a zinc-rich touch-up paint in accordance with ISO 8179 as directed by the engineer. 9-05 Drainage Structures, Culverts, and Conduits City of Renton 1-241 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 9-05.20 Corrugated Polyethylene Storm Sewer Pipe (CPEP) (******) Delete and replace this section as follows: 9-05.20(1) Description Corrugated Polyethylene Pipe (CPEP) shall be corrugated high-density polyethylene pipe with smooth internal wall manufactured by Advanced Drainage Systems (ADS), or approved equivalent. CPEP shall be in conformance with the latest version of ASTM F 667 or AASHTO M 294, Type S. Fittings shall be gasketed PVC fittings. Gaskets shall conform to ASTM F 477. Fittings shall conform to ASTM F1536 or ASTM D3212. Fittings shall be manufactured by Nyloplast USA, Inc., or approved equivalent. Pipe and fittings shall be installed per the manufacturer's recommendations. Lubricate gasket and fitting socket with manufacturer-approved lubricant prior to pushing pipe into fitting. 9-05.24 Polypropylene Culvert Pipe, Polypropylene Storm Sewer Pipe, and Polypropylene Sanitary Sewer Pipe (******) Supplement this section as follows: 9-05.24(1) Polypropylene Culvert Pipe and Storm Sewer Pipe Polypropylene culvert and storm sewer pipe shall conform to the following requirements: For dual wall pipe sizes 12 inches to 60 inches: ASTM F2881. Fittings shall be factory welded, injection molded or PVC. 9-05.50 Precast Concrete Drainage Structures 9-05.50(2) Manholes (******) Supplement this section as follows: Pre-approved details meeting the requirements of the City or WSDOT may be used for this project without submitting calculations indicating compliance with the design criteria. The Contractor shall provide shop drawings detailing the product and specifying the pre- approved detail(s) to be used and their locations along with supporting documentation. In instances where pre-approved details are not available, calculations shall be submitted together with the Shop Drawings. Calculations shall show all dimensions, location and type of lifting inserts, details of reinforcement, connection embeds, joints, covers, or hatches, ladders and grating in accordance with the Contract requirements. Calculations shall clearly list the design criteria used by the manufacturer and indicate the loads imposed on the structure, including magnitude, direction, and location. Calculations shall be stamped by a registered Structural Engineer in the State of Washington. 9-05 Drainage Structures, Culverts, and Conduits City of Renton 1-242 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 9-05.51 Dense Foam (******) This is a new section as follows: Dense foam shall be Ethafoam HS 600 high density, polyethylene foam, as manufactured by Dow Chemical Company, or approved equivalent. END OF SECTION 9-05 9-08 Paints and Related Materials City of Renton 1-243 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 9-08 PAINTS AND RELATED MATERIALS 9-08.9 Manhole Coating System Products (******) This is a new section as follows: 9-08.9(1) Coating Systems Specification High Solids Urethane Coating System: C1 Coating Material: High Solids Urethane Surfaces: Concrete Surface Preparation: In accordance with SSPC SP-7 (Sweep or brush off blast) Application: Shop/Field: The drying time between coats shall not exceed 24 hours in any case System Thickness: 3.0-4.0 mils dry film Coatings: Primer: One coat of Wasser MC-Aroshield high solids urethane (1.5-2.0 DFT) Finish: One coat of Wasser MC-Aroshield (1.5-2 DFT) Color: White END OF SECTION 9-08 9-14 Erosion Control and Roadside Planting City of Renton 1-244 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 9-14 EROSION CONTROL AND ROADSIDE PLANTING 9-14.2 Topsoil 9-14.2(1) Topsoil Type A (******) Section 9-14.2(1) is supplemented as follows: Topsoil Type A shall meet the following requirements: 1. Cation exchange capacity (CEC) of Topsoil Type A shall be a minimum of 10 milliequivalents CEC/100 g dry soil (U.S. EPA Method 9081). 2. Organic content greater than 10-percent but less than 15-percent as measured on a dry weight basis using AASHTO T 267 Determination of Organic Content in Soils by Loss on Ignition. 3. pH shall be between 6.0 and 7.5. 4. Soluble salt contents shall be less than 3.0 hos/com. 5. Conductivity shall be less than 3 mmhs/cm. Topsoil Type A shall be 50-percent to 65-percent Sandy Loam and 50-percent to 35-percent Fine Compost by volume. Sandy Loam shall be as defined by the US Department of Agriculture Soil Classification System, meeting the requirements of Table 1; and be free of phyto-toxic materials, and viable seeds, rhizomes or roots of State-listed noxious weeds. Table 1. Particle Size Analysis for Loam Sieve Size Percent Passing ¾" 100% ½" 90-100% 3/8" 85-100% #4 75-90% #10 55-75% #20 45-60% #30 40-55% #60 20-40% #100 20-30% #200 <30% #270 <25% 2 μm <20% The Fine Compost shall conform to the requirements of Section 9-14.5(8). Contractor shall provide certificates, or sufficient documentation, to the City 2 weeks prior to ordering any compost products for approval by Engineer showing that the supplier sources meet the following criteria: 1. Produce compost products locally. 2. Are certified by the US Composting Council or an equivalent nationally recognized organization. 3. Produce compost products that are derived from the City’s solid waste programs and meet quality standards comparable to standards adopted by the Washington state Department of Transportation or adopted by rule by the Washington state Department of Ecology. 9-05 Drainage Structures, Culverts, and Conduits City of Renton 1-245 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Topsoil Type A Submittal Requirements At least 10 Working Days prior to placement of any soils, the Contractor shall submit the following test results from an independent accredited soils testing laboratory, for samples gathered and tested less than 90 days prior. The laboratory analysis shall be with a sample size of no less than 2 pounds. 1. Grain size analysis results for Sandy Loam. Using method ASTM D422 2. STA / Washington State Department of Transportation Technical Data Sheet for Compost, from a STA accredited lab. 3. Test results from an accredited soil laboratory for all soil mixes, including the following parameters: a. Total and Soluble Nitrogen (NO3 + NH3) b. Phosphorus c. Potassium d. pH e. Organic Matter % (Loss on Ignition method) f. Conductivity g. Calcium h. Sulfur i. Boron 4. Recommendations. Fertilizer and amendment recommendations from an accredited Soil Scientist or Agronomist; for the specified plant type and soil application depth. 5. Mix Samples. Two one (1) gallon samples of each soil mix. Topsoil Type A Acceptance Contractor shall not place any soils until the Engineer has reviewed and confirmed the following: 1. Delivery tickets must show that the full delivered amount of soil matches the product type, volume and Manufacturer named in the submittals. The Engineer may inspect any loads of soil and/or delivery tickets on delivery and stop placement if the delivered soil does not appear to match the submittals; and require sampling and testing of the delivered soil before authorizing soil placement. 9-14.5(4) Wood Strand Mulch Delete this section in its entirety and replace with the following: 9-14.5(4) Landscape Mulch Landscape Mulch shall consist of a uniform blend comprised by 50% Bark Mulch and 50% Fine Compost. Ninety-five percent of this mixture shall pass through a 1.5-inch sieve. The Bark Mulch shall be derived from Douglas fire, native pine, Sitka spruce, or western/mountain hemlock species. It shall not contain bark, resin, tannin, weed seeds, sawdust, splinters, or other debris/compounds detrimental to plant life. The Bark Mulch when tested shall be according to WSDOT Test Method T 123 prior to placement. The compost portion of the mix must comply with the Washington State Department of Ecology 9-05 Drainage Structures, Culverts, and Conduits City of Renton 1-246 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Administrative Code WAC-173-350-220. Landscape Mulch shall be free from: materials toxic to plant growth, rhizomes, roots, subsoil, or other debris and have a PH range of 6.0 -8.0. At the Engineer’s request, prior to delivery, the Contractor shall provide the following: · A 5 gallon sample of the product, for the Engineer’s approval. 9-14.7 Plant Materials 9-14.7(4) Sod (******) Supplement this section as follows: Sod shall be nursery-grown (farm-grown) under climatic conditions similar to, or hardier than those at the site. Sod shall have normal habit of growth and be healthy, vigorous and free of disease, insects, insect eggs and larvae. Sod material shall meet or exceed the specification of Federal, State and local laws requiring inspection for plant disease and insect control. Sod: Non-net sod must be from a local grower and be established in growing sod in sandy loam soils. Sod grown in heavy clay soils is not acceptable. All required certifications apply. Sod shall contain 65% perennial turf-type ryegrass by weight and 35% hard fescue by weight. END OF SECTION 9-14 9-23 Concrete Curing Materials and Admixtures City of Renton 1-247 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 9-23 CONCRETE CURING MATERIALS AND ADMIXTURES 9-23.9 Fly Ash (******) Supplement this section as follows: Fly ash shall not be used around water lines. END OF SECTION 9-23 9-30 Water Distribution Materials City of Renton 1-248 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 9-30 WATER DISTRIBUTION MATERIALS 9-30.1 Pipe (******) Supplement this section as follows: All materials for water distribution and transmission shall be new and undamaged. Prior to ordering any pipe and fittings to be used in a potable water supply, the Contractor shall submit the material source as required by Section 1-06.1 of the Standard Specifications. All direct and indirect drinking water system components which come in contact with potable water shall have National Sanitation Foundation (NSF) certification. All pipe and fittings shall be clearly marked with the manufacturer’s name, type, class, and thickness as applicable. Lettering shall be legible and permanent under normal conditions of handling and storage. 9-30.1(1) Ductile Iron Pipe (******) Revise this section as follows: Replace the last sentence of the first paragraph with the following sentences: All other ductile iron pipe shall be Standard Thickness Class 52 unless shown otherwise on the Drawings. All flanges shall conform to a Class 125 pressure rating unless called out otherwise on the Plans. Replace the third paragraph with the following paragraph: Where shown on the Plans, restrained joints for ductile iron pipe shall be U.S. Pipe Field Lock gasket system or approved equal. 9-30.1(2) Polyethylene Encasement (******) Delete and replace this section as follows: Polyethylene encasement (plastic film wrap) shall be eight mil polyethylene, tube type conforming to AWWA C105. All ductile iron pipes and fittings shall be installed with a polyethylene encasement, tube-type and in black color. 9-30.2 Fittings 9-30.2(1) Ductile Iron Pipe (******) Delete and replace this section as follows: Fittings for ductile iron pipe shall conform to Section 9-30.2(1) of the Standard Specifications. Fittings may be flanged, mechanical joint or push on as required and as shown on the Drawings. Flanged fittings shall conform to a Class 125 pressure rating. Mechanical joint fittings used with ductile iron pipe shall be restrained with Megalug restraining devices or approved equal. Restraining devices shall be manufactured of high strength ductile iron, ASTM A536, Grade 65-45-12. Bolts and connecting hardware shall be of high strength low alloy material in accordance with ANSI/AWWA C111/A21.11. All restraining devices shall have a water working pressure rating equivalent to the full rated 9-05 Drainage Structures, Culverts, and Conduits City of Renton 1-249 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions pressure of the pipe on which they are installed, with a minimum 2:1 safety factor in any nominal pipe size. Notarized certification from the manufacturer of the restraint device shall be provided with submittals. The exterior of all ductile iron fittings shall be coated with bituminous paint. Ductile iron fittings used for water utilities shall have a cement-mortar lining meeting the requirements of AWWA C104. 9-30.2(2) Galvanized Iron Pipe (******) Delete and replace this section as follows: Where galvanized iron pipe is specified, the pipe shall be standard weight, Schedule 40, steel pipe per Standard Specifications for black and hot-dipped, zinc coated (galvanized) welded and seamless steel pipe for ordinary uses (ASTM A-120). Fittings shall be screwed malleable iron galvanized per ANSI B16.3. 9-30.2(4) Steel Pipe 9-30.2(4)C Steel Casing Pipe (******) This is a new section as follows: Steel casing shall be black steel pipe conforming to ASTM A 53. Before installation, coat casing exterior with shop-applied anticorrosive coating conforming to AWWA C210. Minimum coating thickness shall be 16 mils dry film thickness (DFT); however, thickness shall not exceed manufacturer’s recommended thickness. Coating type shall be a polyamide epoxy-coal tar equal to Tnemec Hi-Build Theme-Tar, Series 46H-413. Casing wall thickness shall be 0.250 inch for casings 24 inches or less in diameter and 0.375 inch for casings over 24 inches in diameter. Carrier pipe for water main shall be Restrained Joint Ductile Iron, Class 52. 9-30.2(4)C1 Spacers and Seals for Steel Casing Pipe Casing spacers shall be “centered positioning” type bands at least 12 inch in width and shall be either stainless steel or heavy duty fusion bonded epoxy coated steel. Runners shall be 2-inch wide glass reinforced plastic securely bonded to the spacer, and shall be aligned on the spacer along the axis of insertion of the water main into the casing pipe. Runner length shall approximate the width of the spacer. Securing the spacer to the water main shall be in accordance with the manufacturer’s instruction. The height of the risers and runners combined shall be sufficient to keep the carrier pipe bell, couplings or fittings at least 0.75 inch from the casing pipe wall at all times and provide at least 1-inch clearance between the runners and the top of the casing wall, to prevent jamming during installation. Acceptable spacers and end seals manufacturers are Pipeline Seal and Insulator model S12G-2 for stainless steel and model C12G-2, C8G-2 for fusion-bonded and coated steel, Cascade Waterworks Mfg. Co., Advance Products & Systems, Inc. or approved equal. 9-05 Drainage Structures, Culverts, and Conduits City of Renton 1-250 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 9-30.2(6) Restrained Joint (******) Delete and replace this section as follows: Restrained joints (RJ) for ductile iron pipe, fittings, and valves, where required on the plans, shall be flexible after assembly and be able to be disassembled. Restrained joints shall meet the following criteria: The restrained joint shall have a positive metal to metal contact locking system without the use of gripping teeth. Gaskets for push-on joint pipe with integrally molded steel or metal teeth or locking segments shall not be allowed as substitutes for restrained-joint pipes. The joint restraint system for the pipe shall be the same as the joint restraint system for the pipe fittings, except as provided in item 3 below. Where restrained joint fittings required on the plans cannot be furnished or where restrained jointed fittings are required in areas that are known to be subject to location adjustments, the Contractor may submit a lay plan showing mechanically jointed fittings with wedge restraint glands for approval. Mechanically jointed pipe with wedge restraint glands shall not be substituted for restrained joint pipe. Wedge Restraint Glands Wedge restraint glands shall conform to AWWA C111, ASTM A 536-80 Grade 65-42-12. All bolts and wedges shall be ductile iron. Wedge shall be heat-treated to a minimum 370 BHN. Wedge restraint glands shall be rated for 350 psi for pipe 12 inch in diameter and smaller. 9-30.2(7) Bolted, Sleeve-Type Couplings for Plain End Pipe (******) Delete and replace this section as follows: Transition couplings, reducing couplings, transition reducing couplings, sleeves, flexible couplings for water main shall be compression type by pipe manufacturer: Romac or Ford or approved equivalent. Bolts and nuts shall be high strength, low alloy steel, corrosion resistant per AWWA C111. Stainless steel bolts require anti-seize compound. Heavy hex nuts shall be used. The long body pattern with a minimum center ring or center sleeve length of 12-inches for pipe less than 12 inches in diameter and equal to or greater than the pipe diameter for pipe greater than 12 inches in diameter. Solid sleeves (greater than 12 inch diameter) shall be a 15 inch minimum length. 9-30.3 Valves (******) Delete and replace this section as follows: The valves shall be a standard pattern of a manufacturer whose products are approved by the Engineer and shall have the name or mark of the manufacturer, year valve casting was made, size and working pressure plainly cast in raided and legible letters on the valve body. All valves shall be NSF approved and valve bodies shall be ductile iron. All valves shall be stamped with “NSF APPROVED” and “DI”. 9-05 Drainage Structures, Culverts, and Conduits City of Renton 1-251 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions Where a valve is required to operate in a higher pressure environment than the Class of valve specified in Section 9-30.3, the class of valve shall be as specified in the Contract. 9-30.3(1) Gate Valves (3 inches to 16 inches) (******) Delete and replace this section as follows: All valve material shall be new and undamaged. Unless otherwise approved by the Engineer, the same manufacturer of each item shall be used throughout the work. All gate valves shall be ductile iron body, bronze mounted, resilient seat, non-rising stem and shall be equipped with a standard two (2) inch square operating nut and O-ring stem seals. Valves shall open counterclockwise when viewed from above. Valves shall be designed for a minimum water operating pressure of 200 PSI. Resilient seated gate valves shall be manufactured to meet or exceed the requirements of AWWA Standard C-509 and C-515 latest revisions. Valve ends shall be mechanical joints, flanged joints or mechanical by flanged joints as shown on the project plans. Where restrained joints are called out, valve ends shall be flanged with appropriate flange by restrained joint adapters. All gate valves shall include an 8" x 24" cast iron gate valve box and extensions, as required. A valve stem extension is required where the valve operating nut is more than 3 feet below finished grade. Valve stem extensions are to be a minimum of 1 foot with only one extension per valve in shall be installed in accordance to the City of Renton standard plans. Acceptable gate valves are Clow, M & H/Kennedy, American Flow Control (ACIPCo), Pratt/Mueller, US Metroseal or approved equal in sizes 16 inches and less. Approval of valves other than models specified shall be obtained prior to bid opening. 9-30.3(3) Butterfly Valves (******) Delete and replace this section as follows: In addition to the requirements of section 9-30.3, water main butterfly valves shall conform to AWWA C504 and shall be Class 150B. The valve shall be short-body type and shall have flanged ends. Flanged ends shall be sized and drilled in conformance with ANSI B16.1 Class 125. Valve shall be suitable for direct bury and shall have a stem extension with AWWA 2-inch square operating nut and suitable valve box. All butterfly valves bodies and discs shall be ductile iron. The butterfly valves shall be manufactured by Henry Pratt Company, Mueller, DeZurick, Mosser Valve Division of Olsen Technologies, Dresser 450, Pratt Groundhog or approved equivalent. Valve operators shall be of the traveling nut or worm gear type, sealed, gasketed, and permanently lubricated for underground service. Valve operators shall be constructed to the standard of the valve manufacturer to withstand all anticipated operating torques and designed to resist submergence in ground water. 9-05 Drainage Structures, Culverts, and Conduits City of Renton 1-252 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions The Contractor shall provide an affidavit of compliance stating that the valve furnished fully complies with AWWA C504. 9-30.3(4) Valve Boxes (******) Delete and replace this section as follows: Valve boxes shall be installed on all buried valves. The box and lid shall be cast iron, two- piece slip type with cast iron extension as necessary, conforming to the City of Renton latest standard plans. The cover shall have the word “WATER” cast in it and shall have cast-iron “ears” installed in the direction of the main. Valve box extension pieces shall be provided for valves with groundcover in excess of the depth of the standard valve box. Acceptable manufacturers of valves boxes and covers are Olympic Foundry, Inc., EJCO, Rich (Varnish Casting Corp.) 9-30.3(5) Valve Marker Posts (******) Supplement this section as follows: Valve markers shall be Carsonite composite utility marker .375"x 6'-0" or approved equal with blue label "water”. The valve markers shall be installed in conformance with the City of Renton Standard Plans. 9-30.3(6) Valve Stem Extensions (******) Delete and replace this section as follows: Valve stem extensions shall have a 2-inch square operating nut and self-centering rockplate support. Valves with an operating nut more than 3 feet below grade shall have a valve stem extension to raise the operating nut to within 36 inches of the ground surface. 9-30.3(7) Combination Air Release/Air Vacuum Valves (******) Supplement this section as follows: Combination air release/air vacuum valves shall comply with the requirements of ANSI/AWWA C512. Air and vacuum release valves shall be APCO No. 143C- Valve and Primer Corp, "Heavy-Duty," combination air release valve, Val-Matic No. 201C, Crispin UL10 or approved equivalent. Installation shall be per the City of Renton Standard Plans, latest revision. Piping and fitting shall be copper or brass. Location of the air release valve as show on the plans is approximate. The installation shall be set at the actual high point of the line. 9-30.3(8) Tapping Sleeve and Valve Assembly (******) Supplement this section as follows: Bolt and nuts shall be Cor-Ten or stainless steel. 9-05 Drainage Structures, Culverts, and Conduits City of Renton 1-253 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions 9-30.3(9) Blow-Off Assembly (******) This is a new section as follows: Installation of blow-off assembly shall be per City of Renton Standard Plans, latest revision. Pipe and fittings shall be galvanized. Blow-off assembly shall be installed at location(s) shown on the plans. Temporary blow-off assembly on new dead-end water main shall be installed at location shown on the plans. Temporary blow-off assemblies for testing and flushing of the new water mains will not be included under this item and shall be considered incidental to the contract and no additional payment shall be made. 9-30.5 Hydrants (******) Revise this section as follows: Fire hydrants shall conform to AWWA C502 and shall be of standard manufacture and of a pattern approved by the City of Renton. (******) Supplement this section as follows: The name or mark of the manufacturer, size of the valve opening and year made shall be plainly cast in raised letters on the hydrant barrel to be visible after the hydrant is installed. Hydrants of the following manufacture and pattern have been approved by the City of Renton. Clow Medallion, M&H 929, Mueller Centurion Model A-423, Waterous Pacer, American Darling Model B-62B, Kennedy K81D Guardian, East Jordan WaterMaster 5CD250. 9-30.5(1) End Connections (******) Delete and replace this section as follows: Hydrant end connections shall be mechanical joint connection unless otherwise specified in the description of the bid of proposal. 9-30.5(2) Hydrant Dimensions (******) Delete and replace this section as follows: Fire hydrants shall have a valve opening with minimum diameter of 5-1/4 inches, “O” ring stem seal, two 2-1/2 inches National Standard Thread (N.S.T.) hose nozzle connections, one 4-inches pumper port connection with City of Seattle standard threats and with a 4.875” Seattle thread x 5” Storz adapter attached with a 1/8” stainless steel cable. The shoe connection and hydrant connection inside pipe size and auxiliary gate valve shall be 6 inches, mechanical joint with lugs. The operating nut and port cap nuts are 1-1/4-inch pentagonal. Hydrant restraint system shall be two 3/4-inch diameter Cor-Ten steel shackle rods with a poured in place concrete thrust block behind the hydrant shoe. If a wedge restraint system is 9-05 Drainage Structures, Culverts, and Conduits City of Renton 1-254 February 2025 SE 172nd Street Green Stormwater Infrastructure Project Special Provisions used in lieu of shackle rods, mechanical joint pipe shall be used. Hydrants shall be provided with a breakaway flange assembly and be equipped with breaking devices at the sidewalk. The hydrant curb stand section of the hydrant that is above ground including all exposed surfaces of the breakaway flange shall be painted with 2 field coats of paint Kelly-Moore Luxlite or approved equal in Safety Yellow color. Fire hydrants shall be installed per City of Renton Standard Plans for fire hydrants, latest revisions. 9-30.6 Water Service Connections (2 Inches and Smaller) 9-30.6(3) Service Pipes 9-30.6(3)B Polyethylene Tubing (******) Delete and replace this section as follows: Polyethylene pipe shall not be used. 9-30.6(3)A Copper Tubing (******) Supplement this section as follows: Corrosion protected copper tubing: Service lines crossing SPU distribution mains shall be Kamco or approved equal Copper Tubing meeting the requirements of ASTM B88, Type K rating and polyethylene coating. Coating shall be factory applied and shall be blue in color. 9-30.6(4) Service Fittings (******) Supplement this section as follows: Fittings used for corrosion protected copper tubing shall be compression type with gripper ring. 9-30.6(5) Meter Setters (******) Supplement this section as follows: Meter setters shall be installed per the City of Renton Standard Plans for water meters, latest revision. 9-30.6(7) Meter Boxes (******) Supplement this section as follows: Meter boxes shall be installed per the City of Renton Standard Plans for water meters, latest revision. END OF SECTION 9-30 END DIVISION 9 25. Standard Details 1 SE 172nd STREET GREEN STORMWATER INFRASTRUCTURE PROJECT SWP-27-4037 STANDARD DETAILS FACE OF CURB 6 112' ' 1/2" R. 1" R. 1:24 t TOP OF 112" R. ROADWAY I V ED T CEMENT CONCRETE TRAFFIC CURB AND GUTTER FACE OF ADJACENT CURB 6 1f2"-- FLUSH WITH GUTTER PAN AT SIDEWALK RAMP ENTRANCE 1:12 1:24 TOP OF 112" R. ROADWAY 1 DEPRESSED CURB SECTION AT SIDEWALK RAMPS w ' PREMOLDED JOINT FILLER E FULL -DEPTH EXPANSION JOINT 6" CEMENT CONCRETE 112" R. 1"R. SIDEWALK RAMP VARIES OR LANDING FROM ! 6"TOO S s" T 318" PREMOLDED JOINT FILLER CEMENT CONCRETE PEDESTRIAN CURB AT SIDEWALK RAMPS AND LANDINGS 6 112" ' FACE OF ADJACENT CURB SEE DEPRESSED CURB DETAIL THIS SHEET 114 TOP OF 1/2" R. ROADWAY 2" i T DEPRESSED CURB SECTION AT RESIDENTIAL DRIVEWAYS ONLY. FOR COMMERCIAL DRIVEWAYS SEE STD PLAN 104.2 1 P2' R. FACE OF ADJACENT CURB I GUTTER SURFACE u 6 112" 1" 1' R. FACE OF CURB 1" R. 8 114" 1" R. CEMENT CONCRETE i TRAFFIC CURB DEPRESSED CURB DETAIL AT RESIDENTIAL OR COMMERCIAL DRIVEWAYS, AND ALLEYS GENERAL NOTES: 1. See standard plans 102 and 101.1 for curb expansion and contraction joint spacing. 2. Expansion joint shall be full depth, 3/8" (in.) premolded joint filler. 3. For Depressed Monolithic Driveway Curb & Gutter Section, see Standard Plan 104.2 TOP OF ROADWAY STD. PLAN — 101 a PUBLIC WORKS CEMENT CONCRETE CURBSDEPARTMENT NOfE2 X3/8 -R X 5/8"D DUMMY JOINT I I I I 3/8- PREMOLDED JOINT FILLER (TYP) I F V— 5 _ PLAN VIEW FACEOF FRAME A GRATECURBI_S FRANE60RATE 6 1/2" IL• 13" 51 2" 1• ( I.OB') FRAMEANDGRATE-NOTndwosa 1/2" R. 1' jR MATCHROADWAY Iry DDRB AND DUTIERSID rlEh1 SLOPE TOP OFI 1R2EOE69 ROADWAY D' D D D D.. D.'.' ADJUSTMENT SECTION -NOTINCLUDED D' e' INCURSANDOUTIERSIDIIEM CATCH RUN -NOTDICL DED D •'••' - INCURSANDOUTTERSIDREM SECTION O GENERAL NOTES: 1. The Intent of this design Is to facilitate the removal' of a catch basin with minimal disturbance of the curb x .i- 2. The expansion joints of the - i . I. adjacentsidawalkshall be adjusted to be In line with these curb expansion joints. j I sI SEE NOTE2 CEMENTCONCREIE CURS AND ODTTER I ISO 2IC VIEW CEMENT CONCRETE CURB SM. PLAN — IMA PUBLIC WORKS PRO D: INSTALLATION AT DEPARTMENT CATCH BASINS ADA CEMENT SEE NOTE 31 CEMENT- DEPRESSED MONOLITHIC CONCRETE - CURB 8 CUTTER SIX -WALK j j (SEE DETAIL MS SHEET) TYPE C213 - ISOMETRIC VIEW COMMERCIAL, WITH BUFFER) NOTES 1. When a driveway width exceeds 15 feet, consbud a full depth expanslon joint with 3f8' Joint filler along the driveway lane lines see std. plan 102). Construct expansion joints parallel with the centerline as required at 15 maximum sparing when driveway Widths exceed 30'. 2. See std. plan 102 for sidewalk details. 3. Curb and gutter shown, other curb designs may be specified. See std. plan 101 for curb details. 4. Not used. 5. The engineer will design all driveways to Include elevations at all points marked with symbol "X'. All elevations are at the back of Curb top on uphill side. 6. Not used. 7. For Driveway Widths see DRIVEWAY STANDARDS See NOTE 10). The expansion joints (see end. plan 102) shall be spaced as shown In the corresponding leamViic New. 8. Slopes shall comply with sections 8303.21 or R303.2.2 or R303-2.3 of the Revised Draft Guidelines for Accessible Public Rigbtsaf=Way of Nove uba 23, 2005 (PROWAO). 9. Curb returns for any Type C -MAX Driveway maybe approved on a case-by-case basis, 10. STREET STANDARDS= Renton Municipal Code (RMC) Tide IV Development Regulators CHAPTER 6 STREET AND UTILITY STANDARDS Section 4.6-060 STREET STANDARDS DRIVEWAY STANDARDS = Renton Municipal Cade (RMC) Tice IV Development Regulations CHAPTER 4 CITY-WIDE PROPERTY DEVELOPMENT STANDARDS Section 4 -4 -ON PARKING, LOADING AND DRIVEWAY REGULATIONS aEE.C. coNTwtcnCN X} aro N.w tae b SEE DEFREMECC Dr1M on r z ew- Wit TOPOF1110MY NOTE, ORNE NYtalC.naEULmMB1IX1 ADM NOLtFMALO CURBDEPRESSEDMDNOLTTNIDpJRB 6 DUTfEfiOETAL FACE OF ADJACENT WF® DEPRESSED CURB DETAIL AT RESIDEMW. ORCORBBK.YAL DRIVEWAYS, AND ALIEN'S DdvelNay Example: TYPE C11 B R=Rlisd, d, C.CwwnwdAl 1NurtofLAIW. _---- MA)(x lwne Comm q a=b,(Pia tNSw;l 3an1F41e Buffer - PUBLIC WORE' CEMENT CONCRETE DRIVEWAY STD. PLAN - 104.2 DEPARTMENT ENTRANCES - NOTES AND DETAILS A11f'— // SEE 1piE 1 CE)gER R"'.S.V W. IM (v B CUMCVMI WfR31 SLOPE PYP.1 !SEE ND(E ]I 16' COIIIMCiiO O PO NI ''P IHIREBTB.PUIST PIAN VIEW I0 DVTERENCEWSLOPEl.4%- CEullWCRETESEIEWaIx v41E4 1>'Ei NOE 3)v lvu 3EE NOR3DYP1 6'MwtC!..=ETE 6.uw DEPRSSND'tflal DUTRR filofsvrix M'EV .SIO.:.0nrPI Rini I SECDON OA JfE 3TD. RAN 101, ID-RIT, aE16WMR WW M III \ pgryEWAY W' ITNE SLOPE 14lOPE 9NOWN FSAf.OfRAR01 __ _ \ IL 1. I ORMV/lYT 6. NN erN P • 6 _ SE NOB g®g PUBLIC WORKS DEPARTMENT TYPE RIB - ISOMETRIC VIEW RESIDENTIAL. WITH BUFFER( CEMEM CONCRETE CURIAGU TER INE NOR 31 CEMENT CONCRETE DRIVEWAY ENTRANCE - TYPE RIB For NOTES STD. PLAN 104.2 STD. PLAN - 104.3 PL[rCill Gregg Zimmerman, Public Warks Administrator 6AW t3EEWTEI SEE WYE II lavPAVED DRAEWAY REWIRED SY EYPMGLN Awi ILYF.1 SEE STO PUH 1111 CECDsE x la 1 6FE NOR E ls Z SEE 1piE 1 CE)gER R"'.S.V W. IM (v B CUMCVMI WfR31 SLOPE PYP.1 !SEE ND(E ]I 16' COIIIMCiiO O PO NI ''P IHIREBTB.PUIST PIAN VIEW I0 DVTERENCEWSLOPEl.4%- CEullWCRETESEIEWaIx v41E4 1>'Ei NOE 3)v lvu 3EE NOR3DYP1 6'MwtC!..=ETE 6.uw DEPRSSND'tflal DUTRR filofsvrix M'EV .SIO.:.0nrPI Rini I SECDON OA JfE 3TD. RAN 101, ID-RIT, aE16WMR WW M III \ pgryEWAY W' ITNE SLOPE 14lOPE 9NOWN FSAf.OfRAR01 __ _ \ IL 1. I ORMV/lYT 6. NN erN P • 6 _ SE NOB g®g PUBLIC WORKS DEPARTMENT TYPE RIB - ISOMETRIC VIEW RESIDENTIAL. WITH BUFFER( CEMEM CONCRETE CURIAGU TER INE NOR 31 CEMENT CONCRETE DRIVEWAY ENTRANCE - TYPE RIB For NOTES STD. PLAN 104.2 STD. PLAN - 104.3 PL[rCill Gregg Zimmerman, Public Warks Administrator ALL PAVEMENT MARKINGS SHALL CONFORM TO THE FOLLOWING WSDOT STD. PLANS, EXCEPT CROSSWALK MARKINGS AND STOP BARS SHALL BE PER CITY OF RENTON STD. PLANS 127 AND 128. WSDOT STD. PLANS NOT INCLUDED BELOW SHALL REQUIRE APPROVAL FROM CITY OF RENTON PUBLIC WORKS/TRANSPORTATION. M-3.10 LEFT TURN CHANNELIZATION M-3.20 LEFT-TURN CHANNELIZATION REDUCED TAPERS M-3.30 LEFT-TURN CHANNELIZATION TEE INTERSECTION AND BACK-TO-BACK TURN LANES M-3.40 TWO-WAY LEFT-TURN AND MEDIAN CHANNELIZATION M-3.50 DOUBLE LEFT TURN CHANNELIZATION M-5.10 RIGHT TURN CHANNELIZATION M-9.50 BICYCLE LANE SYMBOL LAYOUT M-9.60 SHARED - USE PATH MARKINGS M-11.10 RAILROAD CROSSING LAYOUT M-12.10 ROUNDABOUT PAVEMENT MARKINGS M-20.10 LONGITUDINAL MARKING PATTERNS M-20.30 LONGITUDINAL MARKING SUPPLEMENT WITH RAISED PAVEMENT MARKERS M-20.40 LONGITUDINAL MARKING SUPPLEMENT WITH RPMS ~ TURN LANES M-20.20 PROFILED AND EMBOSSED PLASTIC LINES M-24.20 SYMBOL MARKINGS ~ TRAFFIC ARROWS FOR HIGH-SPEED ROADWAYS M-24.40 SYMBOL MARKINGS ~ TRAFFIC ARROWS FOR LOW-SPEED ROADWAYS M-24.60 SYMBOL MARKINGS MISCELLANEOUS LONGITUDINAL PAVEMENT MARKINGS SHALL CONSIST OF PROFILED AND EMBOSSED METHYL METHACRYLATE MMA), OR UNLESS OTHERWISE APPROVED BY CITY OF RENTON PUBLIC WORKS/TRANSPORTATION. SUPPLEMENTAL TYPE 2 RAISED PAVEMENT MARKERS WITH REFLECTORS SHALL BE REQUIRED ON ROADWAYS WITH SPEED LIMITS OF 30 MPH OR HIGHER, OR UNLESS OTHERWISE APPROVED BY CITY OF RENTON PUBLIC WORKS/TRANSPORTATION. SUPPLEMENTAL TYPE 2 RAISED PAVEMENT MARKERS WITH REFLECTORS SHALL BE REQUIRED ON ROADWAYS WITH SPEED LIMITS OF 25 MPH OR LOWER, WHERE MINIMUM REQUIRED LIGHTING LEVELS ARE NOT MET AND/OR WHERE CITY OWNED STREET LIGHTS DO NOT EXIST, OR UNLESS OTHERWISE APPROVED BY CITY OF RENTON PUBLIC WORKS/TRANSPORTATION. PAVEMENT LETTERS, AND RED/GREEN PAVEMENT BACKGROUNDS SHALL CONSIST OF METHYL METHACRYLATE MMA), OR UNLESS OTHERWISE APPROVED BY CITY OF RENTON PUBLIC WORKS/TRANSPORTATION. PAVEMENT SYMBOLS, CROSSWALK MARKINGS, AND STOP BARS SHALL CONSIST OF HYDROCARBON THERMOPLASTIC, OR UNLESS OTHERWISE APPROVED BY CITY OF RENTON PUBLIC WORKS/TRANSPORTATION. THERMOPLASTIC SHALL CONTAIN 3M 50/50 WET/DRY ELEMENTS, OR APPROVED EQUAL. IF INSTALLED ON CONCRETE, PAVEMENT SYMBOLS, CROSSWALK MARKINGS, AND STOP BARS SHALL BE 3M STAMARK ALL WEATHER TAPE 380AW SERIES, OR APPROVED EQUAL. SPEED CUSHION CHEVRON SYMBOLS SHALL CONSIST OF 3M STAMARK ALL WEATHER 380AW SERIES TAPE. LONGITUDINAL PAVEMENT MARKINGS CONSISTING OF PAINT SHALL BE USED FOR MAINTENANCE PURPOSES, OR UNLESS OTHERWISE APPROVED BY CITY OF RENTON PUBLIC WORKS/TRANSPORTATION. LONGITUDINAL PAVEMENT MARKINGS WHERE ALL MARKINGS ARE TO CONSIST OF RAISED PAVEMENT MARKERS SHALL REQUIRE APPROVAL FROM CITY OF RENTON PUBLIC WORKS/TRANSPORTATION. IF APPROVED, LONGITUDINAL LANE MARKINGS SHALL FOLLOW WSDOT STD. PLAN M-20.50-02 LONGITUDINAL MARKING SUBSTITUTION W/RAISED PAVEMENT MARKERS. PAVEMENT SURFACE AND AIR TEMPERATURE AT THE TIME OF PAVEMENT MARKING APPLICATION SHALL NOT BE LESS THAN 50° F. DocuSign Envelope ID: FFA9ADCA-D050-445F-B750-15F9271FC791 4/4/2024 | 4:24 PM PDT 1 1 VARIES 1 1 MIN MIN MIN I MIN SPECIAL NOTE: T < } x , 4 IN THE EVENT TRANSVERSE PATCHES EXIST I ; WITHIN THE AFFECTEO STREET, THE LENGTH I I IOFTHEPATCHSHALLBEEXTENDEDTO INCLUDE ANY EXISTING PATCH WITHIN 10 j FEET OF THE EDGE OF THE PATCH REQUIRED iFORTHENEWCROSSINGANDANYf . . SUBSEQUENT PATCH EDGE WITHIN 70 FEE7 OF THE EDGE OF THE SECOND PATCH AND SO ON UP TO A TOTAL OF 300 FEET. I FACE OF GUTTER OR i I EDGE OF PAVEMENT k -=f-- a ; TRAFFIC FLOW 2" HMA I r a d` i i CENTER LINE ORILANELWE 2" TO 8" HMA i I 6.5' MIN. 2" DEPTH OF PLANING OR SAWCUT AND REMOVE VARIES: 6.5' MIN. DEPTH OF EXISTING PAVEMENT MIN I MIN VARIES { MIN I MINI 2" SAWCUT AND REMOVE OR PLANE, SEAL WITH 2" - 6" MIN. HMA (SEE NOTE 2) AR-4000W EACH SIDE) 6" CRUSHED SURFACWG TOP COURSE (CSTC) 2" HMA 9-03.9(3)) PER WSDOT STANDARO SPECIFICATIONS, COMPACTED TO 95% MODIFIED PROCTOR. SAWCUT AFTER BACKFILL EACH SIDE) CSTC, BANK RUN GRAVEL FOR TRENCH BACKFILL 9-03.19), GRAVEL BORROW (9-03.14(1)) PER WSDOT STANDARD SPECIFICATIONS OR NATIVE MATERIAL IF APPROVED IN WRITING BY ENGINEER BASED ON GEOTECH REPORT, COMPACTED TO 95% MODIFIED PROCTOR. WIDTH OF TRENCH AS RE UIRED BY SIZE OF PROPOSED IMPROVEMENT (SEE WSDOT STANDARD SPECIFICATION 2-09.4) PLUS AN ALLOWANCE FOR ANY SHORING. SHORING, IF PIPE ZONE BEDDING. MATERIAL- SEE STANDARDNEEDED, SHALL MEET THE REQUIREMENTS OF WSDOT PLAN 110.1. STANDARD SPECIFICATION 7-08.3(1)B TRENCH WIDTH FOR NOTES, SEE STANDARD PLAN 110.1 TYPICAL TRANSVERSE PATCH FOR p - 110 PUBLIC WORKS FLEXIBLE PAVEMENT OR RIGID F'}'R 'E;D DEPARTMENT u j,.,, PAVEMENT WITN OVERLAY r T VARIES: 4.5' MIN. LANE LINE MARKING SAWCUT AFTER BACKFILL DEPTH OF EXISTING PAVEMENT 2" - 6" HMA 5EE NOTE 2) EDGE OF PAVEMENT, EDGE OF CURB & GUTTER, OR MIN. MIN. CENTER OF LANE MARKING 2" HMA (SEE NOTE 2) 6" CRUSHED SURFACING TOP COURSE CSTC) (9-03.9(3)) PER WSDOT STANDARD 2" SAWCUT AND REMOVE SPECIFCATIONS, COMPACTED TO 95% OR PLANE, SEAL WITH MODIFIED PROCTOR AR-4000W CSTC, BANK RUN GRAVEL FOR TRENCH BACKFILL 9-03.19), GRAVEL BORROW (9-03.14(1)) PER WSDOT STANDARD SPECIFICATIONS OR NATIVE MATERIAL IF APPROVED IN WRITING BY ENGINEER BASED ON GEOTECH REPORT, COMPACTED TO WIDTH OF TRENCH AS REQUIRED BY SIZE OF 95 MODIFIED PROCTOR. PROPOSED IMPROVEMENT (SEE WSDOT STANDARD SPECIFICATION 2-09.4) PLUS AN PIPE ZONE BEDDING MATERIAL AND COMPACTION AS ALLOWANCE FOR ANY SHORING. SHORING, IF REQUIRED BY THE WSDOT STANDARD 5PECIFICATIONS NEEDED, SHALL MEET THE REQUIREMENTS OF FOR THE TYPE OF IMPROVEMENT INSTALLED, EXCEPT: WSDOT STANDARD SPECIFICATION 7-08.3(1)B * FOR STORM AND WATER PIPE, PER STD PLAN 220.0 FOR SANITARY SEWER, PER STD PLAN 405 TRENCH WIDTH * FOR JOINT UTILITY TRENCH, SAND WITH 95 PASSING A #4 SIEVE AND LESS THAN 5 PASSING A #200 SIEVE NOTES: 1. WHEN EXISTWG PAVEMENT IN A LANE REQUIRING A FULL WIDTH REPLACEMENT IS BROKEN OR DETERIORATED TO A PAVEMENT CONDITION INDEX RATING OF 70 OR LESS, THE EXISTING PAVEMENT IN THAT LANE, AND FOR THAT DISTANCE SO CLASSIFIED, SHALL BE REMOVED AND REPLACED WITH HMA MATCHING THE DEPTH USED IN THE EXISTING STREET OR THE DEPTH PER CITY STANDARD, WHICHEVER IS GREATER. 2. PRINCIPAL/ MINOR/COLLECTOR, ARTERIAL, & INDUSTRIAL ACCESS STREETS - MATERIAL AND THICKNESS SHALL BE HMA CL " PG 64-22 AND MATCH EXISTING THICKNESS AND IN NO CASE LESS THAN 6". RESIDENTIAL ACCESS STREETS - HMA CL " PG 64-22. THE THICKNESS SHALL BE THAT OF THE EXISTING PAVEMENT SECTION AND IN NO CASE LESS TNAN 4". 3. WHEN THE "SAWCUT AFTER BACKFILL" ENCROACHES INTO AN ADJACENT LANE, CURB & GUTTER OR SHOULDER, THE AFFECTED LANE SHALL BE PLANED AND OVERLAID WITH HMA FULL WIDTH, THE CURB & GUTTER SHALL BE REMOVED AND REPLACED, OR THE SHOULDER SHALL BE PLANED OR REMOVED AND OVERLAID WITH HMA. 4. IF TRENCH UNDERMINES EXISTING SIDEWALK AND/OR CURBS, THEN THE SIDEWALK AND/OR CURB SHALL BE REPLACED FROM EXPANSION JOINT TO EXPANSION JOINT. 5. IF TRENCHING THROUGH EXISTING DRNEWAY OR SIDEWALK RAMP, THE DRIVEWAY OR SIDEWALK RAMP SHALL BE REPLACED TO MEET ADA STANDARDS. TYPICAL LONGITUDINAL PATCH S"PD. PLAN - 110.1 PUBLIC WORKS FOR FLEXIBLE PAVEMENT OR P1'R ;1;D DEPARTMENT RIGID PAVEMENT WITH OVERLAY o LANE ] LAt E LANE i f t ii 1 : f I f l j 4 INITIAL 2" DEEP SAWCUT OR GRIND, AND LIMIT OF FINAL OVERLAY. GRIND AND PAVE r FULL STREET WIDTH OVERLAY REQUIRED. J 'r t 1 J f/ t I ce: t(. p_. 2: t -, / . -I / t' If r .. }t , 1 i f 1` I t f EDGE OF EXISTING PAVEMENT 11 EDGE OF TRAVELED LANE (EDGE STRIPE) t VARIES: 4.5' MIN. (SEE STD PLAN 110.1) f I CENTER OF ANY MARKED LANE LINE, PROVIDE NEW CHANNELIZATION AFTER OVERLAY F t1 i r SECONDARY FULL DEPTH SAWCUT FOR 4 PROPOSED TRENCH t f I INITIAL 2" DEEP SAWCUT OR GRIND, AND f LIMIT OF FINAL OVERLAY. GRIND AND PAVE FULL STREET WIDTH OVERLAY REQUIRED CANE LAtV LANE r ___ _0 i __ FOR TYPICAL SECTION AND NOTES SEE STANDARD PLAN 110.1 3TD. PLAN - 110.2 PUBLIC WORKS REQUIRED SAWCUT, GRIND AND ppR' 'I,D: DEPARTMENT OVERLAY FOR LONGITUDINAL TRENCHES Q - DocuSign Envelope ID: 9D9B0DA8-0385-4664-AE66-57BFF1561D7F 7/27/2022 | 5:44 PM PDT DocuSign Envelope ID: 9D9B0DA8-0385-4664-AE66-57BFF1561D7F 7/27/2022 | 5:44 PM PDT BAND - OR MOUNTING ON EXISTING METAL POLE OR LUMINAIRE MIN. NOTES 1. DIMENSIONS FOR THE PARTS USED TO ASSEMBLE THE BASE CONNECTIONS ARE INTENTIONALLY NOT SHOWN. BASE CONNECTIONS ARE PATENTED, MANUFACTURED PRODUCTS THAT ARE IN COMPLIANCE WITH NCHRP 350 CRASH TEST CRITERIA. THE BASE CONNECTION DETAILS ARE SHOWN ON THIS PLAN ONLY TO ILLUSTRATE HOW THE PARTS ARE ASSEMBLED. 2. A 2- (IN) POST WITH A 2 1/4" (IN) PSST ANCHOR OR A 2 1/4" (IN) POST WITH A 2 1/2" (IN) PSST ANCHOR MAY BE SUBSTITUTED. SEE CONTRACT PLANS. 3. PERFORATED SQUARE STEEL POST SHALL MEET THE REQUIREMENTS OF WSOOT STANDARD SPECIFICATION 9-06. 4. USE ONLY BASE CONNECTION MANUFACTURER SUPPLIED HARDWARE THAT MEETS THE REQUIREMENTS OF WSDOT STANDARD SPECIFICATIONS 9-06 AND 9-28. EDGE OF TRAVELED ROADWAY 90-F,3C FOR REFLECTORIZED SIGNS: MOUNT FACING 3'(degree) OUTWARD IF SIGN IS WITHIN 30 FEET OF ROADWAY SIGN FACE ORIENTATION BOLT STOPGN POST TYPE ST -4 SIGN SUPPORT OST SUPPORT — 2.25" HOT—DIP GALV., ANCHOR ON CRE 1E MOUNTING ON METAL POST SIGN MOUNTING ON SINGLE STD. PLAN- 129isPUBLICWORKSMETALPOSTAPPROVED: tiZ + DEPARTMENT ( ADOPTED ( /V nerc SIGN POST s LOWER SIGN e 5/16" (IN) CORNER BOLT IN) POST SUPPORT OR 3/6' FLANGED SHOULDER BOLT NTH NUT AND WASHERS 2 REQUIRED (TYP.) BOLT STOPGN POST TYPE ST -4 SIGN SUPPORT OST SUPPORT — 2.25" HOT—DIP GALV., ANCHOR ON CRE 1E MOUNTING ON METAL POST SIGN MOUNTING ON SINGLE STD. PLAN- 129isPUBLICWORKSMETALPOSTAPPROVED: tiZ + DEPARTMENT ( ADOPTED ( /V nerc DocuSign Envelope ID: B16CE03A-ED99-4F11-B559-FEB382C92BFB 7/30/2018 | 4:09 PM PDT PRECAST BASE SECTION SEE NOTE 1 NOTES: 1.AS ACCEPTABLE ALTERNATIVES TO THE REBAR SHOWN IN THE PRECAST BASE SECTION, FIBERS (PLACED IN ACCORDANCE WITH STANDARD SPECIFICATION 9-05.50(9)), OR WIRE MESH HAVING A MINIMUM AREA OF 0.12 SQUARE INCHES PER FOOT SHALL BE USED WITH THE MINIMUM REQUIRED REBAR SHOWN IN THE ALTERNATIVE PRECAST BASE SECTION. WIRE MESH SHALL NOT BE PLACED IN THE KNOCKOUTS. AS AN ACCEPTABLE ALTERNATIVE TO THE REBAR SHOWN IN THE RECTANGULAR ADJUSTMENT SECTION, WIRE MESH HAVING A MINIMUM AREA OF 0.12 SQUARE INCHES PER FOOT MAY BE USED. 2.THE KNOCKOUT DIAMETER SHALL NOT BE GREATER THAN 20". KNOCKOUTS SHALL HAVE A WALL THICKNESS OF 2" MINIMUM TO 2.5" MAXIMUM. PROVIDE A 1.5" MINIMUM GAP BETWEEN THE KNOCKOUT WALL AND THE OUTSIDE OF THE PIPE. AFTER THE PIPE IS INSTALLED, FILL THE GAP WITH JOINT MORTAR IN ACCORDANCE WITH STANDARD SPECIFICATION 9-04.3. 3.THE MAXIMUM DEPTH FROM THE FINISHED GRADE TO THE LOWEST PIPE INVERT SHALL BE 5 FEET. 4.THE FRAME AND GRATE MUST BE INSTALLED WITH THE FLANGE DOWN. 5.THE PRECAST BASE SECTION MAY HAVE A ROUNDED FLOOR, AND THE WALLS MAY BE SLOPED AT A RATE OF 1H:24V OR STEEPER. 6.THE OPENING SHALL BE MEASURED AT THE TOP OF THE PRECAST BASE SECTION. 7.ALL PICKUP HOLES SHALL BE GROUTED FULL AFTER THE INLET HAS BEEN PLACED. USE GROUT TYPE 2 FOR NON-SHRINK APPLICATIONS IN ACCORDANCE WITH STANDARD SPECIFICATION 9-20.3(2). 8.ALL GRADE RINGS AND CASTINGS SHALL BE SET IN MORTAR IN ACCORDANCE WITH STANDARD SPECIFICATION 9-04.3. THEN APPLY MORTAR TO INSIDE AND OUTSIDE OF ALL JOINTS, RINGS, RISERS, AND FRAMES. 9.MORTAR SHALL BE MIXED AND APPLIED PER MANUFACTURER'S DIRECTIONS. 10.FRAME SHALL BE ADJUSTED TO PAVEMENT GRADE BY TAPPING UNTIL FRAME IS FLUSH WITH PAVEMENT AS DETERMINED WITH A STRAIGHT EDGE OF SUFFICIENT LENGTH. 11.ALL MORTAR JOINTS SHALL BE TRIMMED FLUSH AND REMAIN VISIBLE UPON COMPLETION. FRAME AND VANED GRATE RECTANGULAR ADJUSTMENT SECTION 34" 24" 30 20 5" 5" 1", 2", 4", 6", 12", OR 24" ONE #3 BAR HOOP FOR 6" HEIGHT INCREMENT (SPACED EQUALLY), SEE NOTE 1 PIPE ALLOWANCES PIPE MATERIAL MAXIMUM INSIDE DIAMETER REINFORCED OR PLAIN CONCRETE 12" ALL METAL PIPE 15" CPSSP*, STD. SPEC. 9-05.20 12" SOLID WALL PVC, STD. SPEC. 9-05.12(1)15" PROFILE WALL PVC, STD. SPEC. 9-05.12(2) 15" CORRUGATED POLYETHYLENE STORM SEWER PIPE 26", S E E N O T E 6 22SE E N O T E 6 3"4"44" 21" MIN.4" MI N. (T Y P.)3 BAR EACH SIDE 3 BAR EACH WAY 3 BAR EACH CORNER 3 BAR EACH CORNER 18" MIN.3 BAR HOOP ALTERNATIVE PRECAST BASE SECTION CATCH BASIN TYPE 1 STD. PLAN - 200. 00PUBLIC WORKS DEPARTMENT APPROVED: DATEGregg Zimmerman Public Works Administrator UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878 9/28/ REDUCING SECTION 36 20 40" 24" 6" 8" 8" 12" 4"32",SEE N O T E6 28 SE E N O T E 6 4" MI N. (T Y P.)44" 2"PRECAST BASE SECTION SEE NOTE 1 ALTERNATIVE PRECAST BASE SECTION NOTES:1.AS ACCEPTABLE ALTERNATIVES TO THE REBAR SHOWN IN THE PRECAST BASE SECTION, FIBERS (PLACED IN ACCORDANCE WITH STANDARD SPECIFICATION 9-05.50(9)), OR WIRE MESH HAVING A MINIMUM AREA OF 0. 12 SQUARE INCHES PER FOOT SHALL BE USED WITH THE MINIMUM REQUIRED REBAR SHOWN IN THE ALTERNATIVE PRECAST BASE SECTION. WIRE MESH SHALL NOT BE PLACED IN THE KNOCKOUTS. AS AN ACCEPTABLE ALTERNATIVE TO THE REBAR SHOWN IN THE RECTANGULAR ADJUSTMENT SECTION, WIRE MESH HAVING A MINIMUM AREA OF 0.12 SQUARE INCHES PER FOOT MAY BE USED.2.THE KNOCKOUT DIAMETER SHALL NOT BE GREATER THAN 26". KNOCKOUTS SHALL HAVE A WALL THICKNESS OF 2" MINIMUM TO 2.5" MAXIMUM. PROVIDE A 1.5" MINIMUM GAP BETWEEN THE KNOCKOUT WALL AND THE OUTSIDE OF THE PIPE. AFTER THE PIPE IS INSTALLED, FILL THE GAP WITH JOINT MORTAR IN ACCORDANCE WITH STANDARD SPECIFICATION 9-04.3.3.THE MAXIMUM DEPTH FROM THE FINISHED GRADE TO THE LOWEST PIPE INVERT SHALL BE 5'.4.THE FRAME AND GRATE MUST BE INSTALLED WITH THE FLANGE DOWN.5.THE PRECAST BASE SECTION MAY HAVE A ROUNDED FLOOR, AND THE WALLS MAY BE SLOPED AT A RATE OF 1H:24V OR STEEPER.6.THE OPENING SHALL BE MEASURED AT THE TOP OF THE PRECAST BASE SECTION.7.ALL PICKUP HOLES SHALL BE GROUTED FULL AFTER THE INLET HAS BEEN PLACED.USE GROUT TYPE 2 FOR NON-SHRINK APPLICATIONS IN ACCORDANCE WITH STANDARD SPECIFICATION 9-20.3(2).8.ALL GRADE RINGS AND CASTINGS SHALL BE SET IN MORTAR IN ACCORDANCE WITH STANDARD SPECIFICATION 9-04.3. THEN APPLY MORTAR TO INSIDE AND OUTSIDE OF ALL JOINTS, RINGS, RISERS, AND FRAMES.9.MORTAR SHALL BE MIXED AND APPLIED PER MANUFACTURER'S DIRECTIONS.10.FRAME SHALL BE ADJUSTED TO PAVEMENT GRADE BY TAPPING UNTIL FRAME IS FLUSH WITH PAVEMENT AS DETERMINED WITH A STRAIGHT EDGE OF SUFFICIENT LENGTH.11.ALL MORTAR JOINTS SHALL BE TRIMMED FLUSH AND REMAIN VISIBLE UPON COMPLETION. FRAME AND VANED GRATE RECTANGULAR ADJUSTMENT SECTION 34" 24" 30 20 5"5"1", 2", 4", 6", 12", OR 24"ONE #3 BAR HOOP FOR 6" HEIGHT INCREMENT (SPACED EQUALLY),SEE NOTE 1 3 BAR EACH CORNER 18" MIN.3 BAR HOOP PIPE ALLOWANCES PIPE MATERIAL MAXIMUM INSIDE DIAMETER REINFORCED OR PLAIN CONCRETE 18" ALL METAL PIPE 21"CPSSP*,STD. SPEC. 9-05.20 18"SOLID WALL PVC,STD. SPEC. 9- 05.12(1) 21"PROFILE WALL PVC,STD. SPEC. 9- 05.12(2) 21"CORRUGATED POLYETHYLENE STORM SEWER PIPE TWO #3 BAR HOOPS 3 BAR EACH SIDE 3 BAR EACH WAY 3 BAR EACH CORNER CATCH BASIN TYPE 1L STD. PLAN - 200. 10 PUBLICWORKS DEPARTMENT APPROVED:DATEGregg Zimmerman Public Works Administrator UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)DocuSign Envelope ID: 6EECF5B6- 602A-4E4A-B436-A317AA638878 9/28/2018 | 4"25"PRECAST BASE SECTION NOTES:1.AS ACCEPTABLE ALTERNATIVES TO THE REBAR SHOWN IN THE PRECAST BASE SECTION, FIBERS ( PLACED IN ACCORDANCE WITH STANDARD SPECIFICATION 9-05. 50(9)),OR WIRE MESH HAVING A MINIMUM AREA OF 0. 12 SQUARE INCHES PER FOOT SHALL BE USED WITH THE MINIMUM REQUIRED REBAR SHOWN IN THE ALTERNATIVE PRECAST BASE SECTION. WIRE MESH SHALL NOT BE PLACED IN THE KNOCKOUTS. AS AN ACCEPTABLE ALTERNATIVE TO THE REBAR SHOWN IN THE RECTANGULAR ADJUSTMENT SECTION, WIRE MESH HAVING A MINIMUM AREA OF 0.12 SQUARE INCHES PER FOOT MAY BE USED.2.THE KNOCKOUT DIAMETER SHALL NOT BE GREATER THAN 18". KNOCKOUTS SHALL HAVE A WALL THICKNESS OF 2"MINIMUM TO 2.5" MAXIMUM. PROVIDE A 1.5" MINIMUM GAP BETWEEN THE KNOCKOUT WALL AND THE OUTSIDE OF THE PIPE. AFTER THE PIPE IS INSTALLED, FILL THE GAP WITH JOINT MORTAR IN ACCORDANCE WITH STANDARD SPECIFICATION 9- 04.3.3.THE MAXIMUM DEPTH FROM THE FINISHED GRADE TO THE LOWEST PIPE INVERT SHALL BE 5'.4.THE FRAME AND GRATE SHALL BE INSTALLED WITH THE FLANGE DOWN.5.THE PRECAST BASE SECTION MAY HAVE A ROUNDED FLOOR,AND THE WALLS MAY BE SLOPED AT A RATE OF 1H: 24V OR STEEPER.6.THE STRUCTURE OPENING DIMENSIONS SHALL BE MEASURED AT THE TOP OF THE PRECAST BASE SECTION.7.ALL PICKUP HOLES SHALL BE GROUTED FULL AFTER THE INLET HAS BEEN PLACED. USE GROUT TYPE 2 FOR NON-SHRINK APPLICATIONS IN ACCORDANCE WITH STANDARD SPECIFICATION 9-20. 3(2).8.ALL GRADE RINGS AND CASTINGS SHALL BE SET IN MORTAR IN ACCORDANCE WITH STANDARD SPECIFICATION 9- 04.3.THEN APPLY MORTAR TO INSIDE AND OUTSIDE OF ALL JOINTS, RINGS, RISERS, AND FRAMES.9.MORTAR SHALL BE MIXED AND APPLIED PER MANUFACTURER' S DIRECTIONS.10.FRAME SHALL BE ADJUSTED TO PAVEMENT GRADE BY TAPPING UNTIL FRAME IS FLUSH WITH PAVEMENT AS DETERMINED WITH A STRAIGHT EDGE OF SUFFICIENT LENGTH.11.ALL MORTAR JOINTS SHALL BE TRIMMED FLUSH AND REMAIN VISIBLE UPON COMPLETION.FRAME AND VANED GRATE RECTANGULAR ADJUSTMENT SECTION 4" MI N. (T Y P.)26",SEE N O T E6 22 SE E N O T E 6 SEE NOTE 1 ALTERNATIVE PRECAST BASE SECTION 3 BAR EACH SIDE TOP AND BOTTOM 3 BAR EACH CORNER ONE # 3 BAR ACROSS BOTTOM 3 BAR EACH CORNER 18" (MIN.)3 BAR HOOP PIPE ALLOWANCES PIPE MATERIAL MAXIMUM INSIDE DIAMETER REINFORCED OR PLAIN CONCRETE 12"ALL METAL PIPE 15"CPSSP* ,STD. SPEC. 9- 05. 20 12"SOLID WALL PVC,STD. SPEC. 9-05. 12( 1)15"PROFILE WALL PVC,STD. SPEC. 9-05. 12( 2)15"CORRUGATED POLYETHYLENE STORM SEWER PIPE 34" 24" 30 20 5"5"1", 2", 4", 6", 12", OR 24"ONE #3 BAR HOOP FOR 6" HEIGHT INCREMENT ( SPACED EQUALLY),SEE NOTE 1 CONCRETE INLET STD. PLAN - 200.30 PUBLIC WORKS DEPARTMENTAPPROVED: DATEGregg Zimmerman Public Works Administrator UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)DocuSign Envelope ID: 6EECF5B6-602A-4E4A- B436-A317AA638878 9/28/2018 | 9:45 2' 11-1/2" 2' 2"4-3/4"4-3/4" 2' 7"1' 10" 4-1/2" 4-1/2" DRA I N 3' 4" 3' 3' 6-1/4" 1' 11-1/2" 2' 9-1/2"2' 5" 6" 8" 3' 8" 5-1/2" 6" 5' 5-3/4" ONE #4 BAR HOOP 4s EACH SIDE OF OPENING CONVERSION RISER Ø 2' 6" 8" CONVERSION RISER ADJUSTMENT RINGS CONVERSION RISER STD. PLAN - 200.40 PUBLIC WORKS DEPARTMENT APPROVED: DATEGreggZimmerman Public Works Administrator UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS) DEPTH: 3.52' TO IE OUT DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878 9/28/2018 | 9:45 AM PDT NOTES: 1.NO STEPS ARE REQUIRED WHEN HEIGHT IS 4' OR LESS. 2.THE BOTTOM OF THE PRECAST CATCH BASIN MAY BE SLOPED TO FACILITATE CLEANING. 3.THE RECTANGULAR FRAME AND GRATE MUST BE INSTALLED WITH THE FLANGE DOWN. THE FRAME MAY BE CAST INTO THE ADJUSTMENT SECTION. 4.KNOCKOUTS SHALL HAVE A WALL THICKNESS OF 2" MINIMUM TO 2.5" MAXIMUM. PROVIDE A 1.5" MINIMUM GAP BETWEEN THE KNOCKOUT WALL AND THE OUTSIDE OF THE PIPE. AFTER THE PIPE IS INSTALLED, FILL THE GAP WITH JOINT MORTAR IN ACCORDANCE WITH STANDARD SPECIFICATION 9-04.3. 5.ALL GRADE RINGS, RISERS, AND CASTINGS SHALL BE SET IN MORTAR IN ACCORDANCE WITH STANDARD SPECIFICATION 9-04.3. 6.WHEN CONNECTING TO A NEW PIPE, USE A FLEXIBLE CONNECTOR (KOR-N-SEAL BOOT WITH CORRUGATED PIPE ADAPTER OR APPROVED EQUAL). WHEN CONNECTING TO AN EXISTING PIPE, USE A FABRICATED SAND COLLAR OF THE SAME MATERIAL AS THE CONNECTING PIPE. 7.MORTAR SHALL BE MIXED AND APPLIED PER MANUFACTURER'S DIRECTIONS. 8.FRAME SHALL BE ADJUSTED TO PAVEMENT GRADE BY TAPPING UNTIL FRAME IS FLUSH WITH PAVEMENT AS DETERMINED WITH A STRAIGHT EDGE OF SUFFICIENT LENGTH. 9.ALL MORTAR JOINTS SHALL BE TRIMMED FLUSH AND REMAIN VISIBLE UPON COMPLETION. CATCH BASIN FRAME AND VANED GRATE PER STD. PLAN 204.00 RECTANGULAR OR CIRCULAR ADJUSTMENT SECTION (TWO SECTIONS MAX.) MORTAR, (TYP.), SEE NOTE 5 FLAT SLAB TOP SEE NOTE 6, TYP. REINFORCING STEEL, (TYP.) GRAVEL BACKFILL FOR PIPE ZONE BEDDING PER WSDOT STD. SPECIFICATION SECTION 9-03.12(3) INTEGRAL BASE PRECAST WITH RISER STEPS OR LADDER 4" MIN. 16" MAX.28" MAX. 48", 54", 60", 72", 84", 96", 120" OR 144" 12" (TYP.) 24" MIN. 12" MAX. 1" MIN. 2.5" MAX. 12" 6" 15' MAX. FOR MAINTENANCE SEPARATE BASE PRECAST O" RING 12" 6" CATCH BASIN DIMENSIONS CATCH BASIN DIAMETER MIN. WALL THICKNESS MIN. BASE THICKNESS MAXIMUM KNOCKOUT SIZE MINIMUM DISTANCE BETWEEN KNOCKOUTS 48"4"6"36"8" 54"4.5"8"42"8" 60"5"8"48"8" 72"6"8"60"12" 84"8"12"72"12" 96"8"12"84"12" 120"10"12"96"12" 144"12"12"108"12" PIPE ALLOWANCES CATCH BASIN DIAMETER PIPE MATERIAL WITH MAXIMUM INSIDE DIAMETER CONCRETE ALL METAL CPSSP 1 SOLID WALL PVC 2 PROFILE WALL PVC 3 48"24"30"24"30"30" 54"30"36"30"36"36" 60"36"42"36"42"42" 72"42"54"42"48"48" 84"54"60"54"48"48" 96"60"72"60"48"48" 120"66"84"60"48"48" 144"78"96"60"48"48" 1 CORRUGATED POLYETHYLENE STORM SEWER PIPE (STD. SPEC. 9-05.20) 2 STD. SPEC. 9-05.12(1) 3 STD. SPEC. 9-05.12(2) CATCH BASIN TYPE 2 STD. PLAN - 201.00 PUBLIC WORKS DEPARTMENT APPROVED: DATEGreggZimmerman Public Works Administrator UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS) DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878 9/28/2018 | 9:45 AM PDT NOTES: 1.THIS FRAME IS DESIGNED TO ACCOMMODATE 20" × 24" GRATES OR COVERS,SEE STANDARD PLANS 204.10, 204.20, AND 204.30.2. BOLT-DOWN CAPABILITY IS REQUIRED ON ALL FRAMES, GRATES, AND COVERS, UNLESS OTHERWISE SPECIFIED. PROVIDE TWO HOLES IN THE FRAME THAT ARE VERTICALLY ALIGNED WITH THE GRATE OR COVER SLOTS.THE FRAME SHALL ACCEPT THE 5/8"-11 NC x 2" ALLEN HEAD CAP SCREW BY BEING TAPPED, OR OTHER APPROVED MECHANISM. LOCATION OF BOLT- DOWN HOLES VARIES BY MANUFACTURER.3. REFER TO STANDARD SPECIFICATION 9-05.15(2) FOR ADDITIONAL REQUIREMENTS. GRATE FRAME SEE NOTE 2 RECESSED ALLEN HEAD CAP SCREW 5/ 8" - 11 NC x 2"SECTION A DETAIL TOP ISOMETRIC VIEW BOLT- DOWN HOLE (TYP.) ~ 5/8",11 NC, SEE DETAIL AND NOTE 2 29 1/4"25 1/4"SECTION BOLT-DOWN DETAIL 24 1/4"SEE DETAIL 3/ 4"4 1/2"1 5/8"2 1/2"1 5/8"1 1/4"3/ 4"7/ 8"1/ 8"ARECTANGULAR FRAME STD. PLAN - 204.00 PUBLIC WORKS DEPARTMENT APPROVED: DATEMartin PastuchaPublic Works Administrator UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)DocuSign Envelope ID: E212B987-C626-4330-A5D4-D055A0107AF9 10/ 19/2022 | 2:52 PM PDT NOTES: BOLT-DOWN SLOT DETAIL SEE NOTE 1 SECTION A TOP SECTION B SECTION C 1.BOLT-DOWN CAPABILITY IS REQUIRED ON ALL FRAMES, GRATES, AND COVERS, UNLESS OTHERWISE SPECIFIED. PROVIDE TWO HOLES IN THE FRAME THAT ARE VERTICALLY ALIGNED WITH THE GRATE OR COVER SLOTS. THE FRAME SHALL ACCEPT THE 5/8"-11 NC x 2" ALLEN HEAD CAP SCREW BY BEING TAPPED, OR OTHER APPROVED MECHANISM. LOCATION OF BOLT-DOWN HOLES VARIES BY MANUFACTURER. 2.ALTERNATIVE REINFORCING DESIGNS ARE ACCEPTABLE IN LIEU OF THE RIB DESIGN. 3.REFER TO STANDARD SPECIFICATION 9-05.15(2) FOR ADDITIONAL REQUIREMENTS. 4.FOR FRAME DETAILS, SEE CITY OF RENTON STANDARD PLAN 204.00. 24" 1 1/2" 3" R26", SEE NOTE 2 BOLT-DOWN SLOT, SEE DETAIL AND NOTE121/2" DIA. HOLE 1 5/8" MAX. 4 3/4"1 1/2" 3" R39", SEE NOTE 2 1 1/2" 1/2" DIA. HANDLE 3/4" DIA. HOLE 5/8" 3/4" 4" 3 1/2" 5" 1/2" 3/4" 1 1/4" 5/8"ACB20" ISOMETRIC PUBLIC WORKS DEPARTMENT APPROVED: DATEGreggZimmerman Public Works Administrator UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS) RECTANGULAR SOLID METAL COVER STD. PLAN - 204.10 DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878 9/28/2018 | 9:45 AM PDT NOTES: ISOMETRIC SECTION B TOPFOUNDRY NAMEDIFLOW SECTION A 1.BOLT-DOWN CAPABILITY IS REQUIRED ON ALL FRAMES, GRATES, AND COVERS, UNLESS OTHERWISE SPECIFIED. PROVIDE TWO HOLES IN THE FRAME THAT ARE VERTICALLY ALIGNED WITH THE GRATE OR COVER SLOTS. THE FRAME SHALL ACCEPT THE 5/8"-11 NC x 2" ALLEN HEAD CAP SCREW BY BEING TAPPED, OR OTHER APPROVED MECHANISM. LOCATION OF BOLT-DOWN HOLES VARIES BY MANUFACTURER. 2.REFER TO STANDARD SPECIFICATION 9-05.15(2) FOR ADDITIONAL REQUIREMENTS. 3.FOR FRAME DETAILS, SEE STANDARD PLAN 204.00. FLOWFLOWBOLT-DOWN SLOT DETAIL SEE NOTE 1 1/2" 3/4" 1 1/4" 5/8" BOLT-DOWN SLOT, SEE DETAIL AND NOTE 1 20" 5" 5" 5" 3" 1" 3" 5" 5" 5" DIRECTION OF FLOW 24" 7 OR 8 EQUAL SPACES 1 5/8" MAX. A BOUTFALL TO STREAM DUMP NO POLLUTANTS 3/8" RECESSED LETTERING RECTANGULAR VANED GRATE STD. PLAN - 204.20 PUBLIC WORKS DEPARTMENT APPROVED: DATEGreggZimmerman Public Works Administrator UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS) DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878 9/28/2018 | 9:45 AM PDT ISOMETRIC NOTES: SECTION B TOPFOUNDRY NAMEDIFLOW SECTION A 1.BOLT-DOWN CAPABILITY IS REQUIRED ON ALL FRAMES, GRATES, AND COVERS, UNLESS OTHERWISE SPECIFIED. PROVIDE TWO HOLES IN THE FRAME THAT ARE VERTICALLY ALIGNED WITH THE GRATE OR COVER SLOTS. THE FRAME SHALL ACCEPT THE 5/8"-11 NC x 2" ALLEN HEAD CAP SCREW BY BEING TAPPED, OR OTHER APPROVED MECHANISM. LOCATION OF BOLT-DOWN HOLES VARIES BY MANUFACTURER. 2.REFER TO STANDARD SPECIFICATION 9-05.15(2) FOR ADDITIONAL REQUIREMENTS. 3.USE ONLY IN SAGS ON VERTICAL CURVES. 4.FOR FRAME DETAILS, SEE STANDARD PLAN 204.00. FLOWFLOWBOLT-DOWN SLOT DETAIL SEE NOTE 1 1/2" 3/4" 1 1/4" 5/8" BOLT-DOWN SLOT, SEE DETAIL AND NOTE 1 20" 5" 5" 5" 3" 1" 3" 5" 5" 5" 24" 1 5/8" MAX. 4 EQUAL SPACES 4 EQUAL SPACES A BOUTFALL TO STREAM DUMP NO POLLUTANTS 3/8" RECESSED LETTERING RECTANGULAR BI-DIRECTIONAL VANED GRATE STD. PLAN - 204.30 PUBLIC WORKS DEPARTMENT APPROVED: DATEGreggZimmerman Public Works Administrator UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS) DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878 9/28/2018 | 9:45 AM PDT COVER SECTION VIEW ASTM A48 CL35B00371780MO/ DA/YR X3717C1PTEON BOLTING DETAIL GASKET GROOVE DETAIL FRAME SECTION VIEW COVER BOTTOM VIEW PLAN VIEW DRAINIFCOMADEINUSA EJIW DUMPNO P OL LU T A N T S - DRAINS T O S T REAMR E N T O N NOTES:1.ALL COVERS SHALL BE LOCKING LID PER EJ No. 3717C1 OR APPROVED EQUAL.1/2" LETTERING BOLT HOLES - 3 PLACES EQUALLY SPACED 120° APART ON 23 1/16" DIA. B. C.1 1/4" LETTERING 1) 1" DIA. PICKHOLE 25" DIA.3/ 4"1"2 1/ 2"8 3/4"TYP.) 3) BLT SOC. (ALLEN HEAD)5/8"-11 x 1.5 SS RUBBER WASHER 5/ 8"25 1/4" DIA.26 1/2" DIA.23 3/8" DIA. CL OPEN 27 5/16" DIA.34 1/ 8" DIA.1 1/16"6"1/8" 1/4" 1 1/16"R1/8" 1/4" DIA. NEOPRENE GASKET STORM ROUND FRAME AND COVER PUBLIC)STD. PLAN - 204. 50PUBLIC WORKS DEPARTMENT APPROVED: DATEMartin Pastucha Public Works Administrator UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)DocuSign Envelope ID: 3B1B34D3-7E0A-476C-ADB3-4329FFE0C108 8/13/ FLEXIBLE PIPE NOTES: 1.PROVIDE UNIFORM SUPPORT UNDER BARRELS. 2.HAND TAMP UNDER HAUNCHES. 3.DIRECTLY OVER PIPE, HAND TAMP ONLY. 4.SEE STANDARD WSDOT/APWA SPECIFICATIONS SECTION 2-09.4 FOR TRENCH WIDTH. 5.PIPE ZONE BEDDING AND BACKFILL MATERIAL SHALL BE PLACED IN 6" LOOSE LAYERS AND COMPACTED TO 95% MAXIMUM DENSITY. 6.EXCAVATE UNSTABLE MATERIAL DOWN TO FIRM SOIL AND REPLACE WITH FOUNDATION MATERIAL CLASS A OR B PER STANDARD WSDOT/APWA SPECIFICATIONS SECTION 9-03.17. SEE NOTE 4, LIMIT OF PIPE ZONE 6" O.D. 6" FOUNDATION LEVEL PIPE ZONE BEDDING AND BACKFILL, SEE NOTE 5 FLEXIBLE PIPE PIPE TYPE MINIMUM COVER (FT) PUBLIC?PRIVATE? ALLOWED IN ZONE 1 OF THE APA? LINE CORRUGATED POLYETHYLENE PIPE (LCPE)2.0 YES YES YES CORRUGATED POLYETHYLENE PIPE (CPE) - TRIPLE WALL 2.0 YES YES YES POLYVINYL CHLORIDE PIPE (PVC)3.0 YES YES YES SOLID WALL HIGH DENSITY POLYETHYLENE PIPE (HDPE)2.0 YES YES YES POLYPROPYLENE PIPE (PP) - DUAL WALL 2.0 YES YES YES DIAMETER MINIMUM DISTANCE BETWEEN BARRELS 12" TO 24"12" 30" TO 96"DIAMETER / 3 102" TO 180"48" GRAVEL BACKFILL FOR PIPE ZONE BEDDING (WSDOT 9-03.12(3)) OR MAINTENANCE ROCK (WSDOT 9-03.9(4)) FOUNDATION MATERIAL, IF REQUIRED, SEE NOTE 6 PIPE ZONE BEDDING AND COMPACTION - FLEXIBLE PIPE STD. PLAN - 220.10 PUBLIC WORKS DEPARTMENT APPROVED: DATEMartinPastucha Public Works Administrator UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS) DocuSign Envelope ID: 3B1B34D3-7E0A-476C-ADB3-4329FFE0C108 8/13/2020 | 8:48 AM PDT 12" MIN. 6" MIN. , SEE NOTE 4 EXISTING PAVEMENT SURFACE SURFACE RESTORATION AS SPECIFIED IN CONTRACT DOCUMENTS CRUSHED SURFACING TOP COURSE" PER WSDOT STD. SPEC 9-03.9(3), "BANK RUN GRAVEL FOR TRENCH BACKFILL" PER WSDOT STD. SPEC 9-03.19, OR "GRAVEL BORROW" PER WSDOT STD. SPEC 9-03.14(1), COMPACTED TO 95% OF MAXIMUM DENSITY BENCH AS NEEDED FOR SHORING SYSTEM WHEN DEPTH IS 4' OR GREATER PIPE ZONE BEDDING AND BACKFILL PER STD. PLANS 220.00 AND 220.10 PIPE NEAT LINE TRENCH UNPAVED AREAS PAVED AREAS SEE NOTE 1 NOTES: 1.SEE WSDOT/APWA STANDARD SPECIFICATIONS SECTION 2-09.4 FOR MEASUREMENT OF TRENCH WIDTH. 2.EXCAVATIONS OVER 4' DEEP SHALL COMPLY WITH THE SAFETY STANDARD DESCRIBED IN CHAPTER 295-155 PART N OF THE WAC. 3.MAXIMUM BACKFILL DEPTH ABOVE PIPE SHALL NOT BE EXCEEDED, AS DETERMINED BY PIPE MANUFACTURER. 4.IN PAVED AREAS, IF PIPE HAS LESS THAN 3' OF COVER, USE "CRUSHED SURFACING TOP COURSE" FOR THE ENTIRE BACKFILL DEPTH ABOVE PIPE ZONE. 5.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS. SEE STANDARD PLANS 110, 110.1, 110.2, AND 111 FOR PAVEMENT RESTORATION REQUIREMENTS CRUSHED SURFACING TOP COURSE" PER WSDOT STD. SPEC 9-03.9(3), COMPACTED TO 95% OF MAXIMUM DENSITY TYPICAL TRENCH AND BACKFILL STD. PLAN - 220.20 PUBLIC WORKS DEPARTMENT APPROVED: DATEGreggZimmerman Public Works Administrator UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS) DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878 9/28/2018 | 9:45 AM PDT TYPICAL CLEANOUT CONFIGURATION GENERAL NOTES: 1.CLEANOUTS FOR UNDERDRAIN, FOOTING DRAIN COLLECTOR, AND ROOF DRAIN COLLECTOR PIPES SHALL BE INSTALLED AT A MINIMUM OF EVERY 100 FEET, AT EVERY 90 DEGREE OR SECOND 45 DEGREE BEND, AT THE END OF EVERY COLLECTOR PIPE, AND AT EACH END OF AN UNDERDRAIN PIPE NOT CONNECTED TO AN OVERFLOW STRUCTURE. CLEANOUTS SHALL BE INSTALLED TO ALLOW FOR MAINTENANCE ACCESS TO ALL PIPES. 2.ALL FITTINGS SHALL BE SOIL TIGHT. 3.CLEANOUT RISER SHALL BE LOCATED OUTSIDE OF BIORETENTION PONDING WHERE POSSIBLE. 4.CLEANOUTS SHALL NOT BE LOCATED WITHIN THE STREET TRAVEL LANE, UNLESS OTHERWISE APPROVED BY THE CITY. DESIGN PONDING ELEVATION SOIL TIGHT 45° BEND EXTEND CLEANOUT RISER 2" ABOVE DESIGN PONDING ELEVATION OR PER PLAN 4" STREAMBED COBBLES PER WSDOT 9-03.11(2) SOIL TIGHT COUPLER UNDERDRAIN, FOOTING DRAIN COLLECTOR, OR ROOF DRAIN COLLECTOR PIPE, SEE NOTE 1 WYE MECHANICAL PLUG OR CONTINUED CONNECTION FERNCO GASKETED QUIK CAP OR SIMILAR CAST IRON FRAME AND COVER, SEE NOTE 3 CLEANOUT RISER, SEE NOTE 2 PAVED AREA (TYP.) TO OVERFLOW STRUCTURE OR STORM MAIN CLEANOUT RISER LOCATED WITHIN BIORETENTION PONDING AREA NOTES: 1.DIAMETER TO BE 6-INCHES MINIMUM PRIVATE, 8-INCHES MINIMUM PUBLIC. UNDERDRAIN PIPE PER STD. PLAN 262.10. 2.CLEANOUT RISER SHALL BE SAME MATERIAL AS CONNECTED UNDERDRAIN, FOOTING DRAIN COLLECTOR, OR ROOF DRAIN COLLECTOR PIPE. 3.FRAME AND COVER SHALL BE EJ PRODUCTS 3675Z1PT AND 3675APT OR APPROVED EQUAL. COVER TO BE LOCKING WITH ALLEN HEAD BOLT, MARKED "STORM" OR DRAIN". 4.FOR CLEANOUTS FULLY OR PARTIALLY WITHIN UNPAVED AREAS OUTSIDE OF BIORETENTION PONDING AREA, POUR 8" THICK, 2'x2' SQUARE CONCRETE COLLAR AROUND FRAME. CONCRETE COLLAR SHALL HAVE A MINIMUM COMPRESSIVE STRENGTH OF 3,000 PSI. CLEANOUT RISER, SEE NOTE 2 FRAME SECTION 10-1/2" DIA 4" 5/8" 9" DIA 15" DIA 8-1/8" DIA 8-13/16" DIA 5/8" COVER SECTION MADE IN USA 1" PLAN VIEW PROD NO.3/4" FLAT FACE GOTHIC 2) 3/8"-16 SS SOCKET HEAD CAP SCREW (ALLENHEAD) W/WSHRS ON A 8" DIA BOLT CIRCLE 1) OPENPICKHOLE 12"12"4" COMPACTED SAND OR GRAVEL BACKFILL FOR DRAINS PER WSDOT 9-03. 12(4)8" CLASS "B"ASPHALT, SEE NOTE 4 STORM SYSTEM CLEANOUT STD. PLAN - 226.00 PUBLIC WORKS DEPARTMENTAPPROVED: DATEMartin Pastucha Public Works Administrator UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)DocuSign Envelope ID: 3B1B34D3-7E0A-476C- ADB3-4329FFE0C108 8/13/2020 | 8:48 CURB, CEMENT CONCRETE MOUNTABLE LANE MARKERS, TYPE No.2 USE 12 FOR s 15' DIA. USE 16 FOR - 20' DIA. USE 20 FOR : 20' DIA. THROUGH JOINTS: USE 4 FOR < 20' DIA. USE 8 FOR ? 20' DIA. 5" TYP 10 PLANT MATERIAL TREE PLANTING: USE 3 TREES EQUAL SPACED FOR >15' DIA. USE 1 TREE, CENTERED FOR <15' DIA. OBJECT MARKER, SIGN CODE, W -81(P4-12) 2-#3 BARS TYP. BETWEEN JOINTS) 3-#3 CURB DOWELS TYP. BETWEEN JPOINTS) PICAL TRAFFIC CIRCLE CURB, CEMENT CONCRETE MOUNTABLE (DOWELED) LANE MARKER, TYPE No.2 1" :NDI EX. CONC. OR ASPH./CONC. PAVEMENT CONCRETE PAVEMENT 3 BARS 3 CURB DOWEL TREE PLANTING TYP. 2' 1' PLANT MATERIAL 4" 5" - PLANT MULCH(2") TOP SOIL (3") 1 3:1 SLOPE FILL, MATERIAL AGGREGATE TYPE 10 3 BARS J / 6 .REMOVE PAVEMENT 3 CURB DOWEL ` LINE DRILL TYPICAL SECTION LANE MARKER, TYPE No.2 CURB, CEMENT CONCRETE MOUNTABLE SEE TYP. SECTION ABOVE FOR DIMENSIONS. TYPICAL SECTION NOT TO SCALE nwr NAKAF- "ni5 CP PArF-1-101, TRAFFIC CIRCLE lTY p ADOPTED VOA CITY OF RENTON STANDARD PLANS IV TT0 LST DATE:04/04 nwr NAKAF- "ni5 CP PArF-1-101, i.-•=.-vm.,,,^J..,-.a;e-m r'.'.+—!^-^-+rrc-^vn3-x_._.. r ,.fie. ,_.3`-+F.r-,.,..._,.e,-„...... EDGE aFSNmRDDi — OR7URNDUr AT EDGE OF SHOULDER A TYISr P1ATE SEEDErAly S/EE'rSte 1 LSEE NOIE01 FACEN I QaiB h IYPE( WTYPeOF ' SUPPORT r F CUPo vNUE.S vME. VARIES) SmE BEHIND CURB MAILBOX PLACEMENT. SECTIONS eNeOx S101 1,1A OR] (TYPU R aLALPS PER B= n rBra IIIA 4—r w i us ua ua ' ua ua u wa wa nra ws I—a-mitBEIMEENxa90)k6 vMWarorr BEHIND SIDEWALK NOTES: 1. An mfu.hble platform may be used In Ocu of Cha platform design shown on Rtis nlan. Adjustable platforms must fit Ue bracket design drown on gds plan. required. required. seeeresulted for all single post inslellalfons. Field adtag may be 2. A Type 2 support is requlmd when 2 of more mares em to be Installed on one support A meKimum of 6 mailboxes may be installed on a Type 2 suppartSeeStd. Spec. 932.7. 3. Attach as crews r box to a steeligsstwhit two 170 Muller Clem stated lag both m aFie 7refnlholesinspf box mai n the Newspaperepamorotlwmust• M& affiM beyond the tramof the 4. rng of mallson mounting holes varies among manufa haves. AttachmentoMemailboxtogreWatlortnmayrequiredMingadddionalholesthroughthe mallbai to at the platform S. Comer the maiDox on the plaUpm to ensure apace far Ne msExar door.to open and to albw spam far Igshging the fostoem. S. A Socket endSnoring system may be 6ubsgWteci M fieu of me =IL twist Dlate assemb for single steel posts shown on this plan. The socket and wedge anchoring system shag meet NCHRP 360 cash teat afteria. Anb-teht replatesanot mqu tar wood post insfagatans. EcmmwcoxmucP SEE DETAIL. aEaaET+7 e _ eiEELPoSi. WpODPoIIi-oq z*^^ .. t ..__ ...,.,,, .. _.._ _ OP110R . OPTKIN I ., , . .. (PItOPpre'GRYDtlIONIIROMIO DODARE TYPE ISUPPORT r. ., -- • ,,. ,. - TYPE 2SUPPORT r - MAILBOX SPACING DETAIL ” -:. $APTED oeks Inu"rauu nw.r r: . an' T`04 j "rf« -n .s`3.:• NCO r+ r CAST DAT PIEEA "'. TON LANS T 151099!2002, -- 20-/- WOOD POST FASTENERS IM HTM WOWA••W • 1 WOWL•W • e • k mAx•W • e • R/ NA6B0X5,, 1A ORx eoLre ouANlm uD£ 1A eNOMO vu]wERs loaonlls sEETauESItEEEra U,S FOR De1FBVSIONS) 1 WDVBL•W 0 sEs NOTE s) q tM'oUN.W NYLON PLSEIfL. e sErs LUel Tlma ft mmSEEDETaLS 3) SEE NOTE 1) W • • W MEA NFAD BOLT, 2 L'YASI¢RS e m crypj GM 3) AnomowaL REOW mTYUSETO iB1 DPP (fYP.) W • Mf NIX BDLT 2YMSNERSaLOCIOarGYP.) STEEL POST FASTENERS eoLre ouANlm eyrDK ti N- vu]wERs loaonlls STADEPRO110)m- J W OLAM.2W 2 1 WDVBL•W 0 sEs NOTE s) q tM'oUN.W e 1rsMNVAP f nr(e MCLANP,, I aro Posr I PLATFORMSEEDEYNL 6NEEfA SEE NDTE II eyrDK ti N- STADEPRO110)m- JFUIFORY ON BOm ENDS TO a1DWACOESS TO FABf p sEs NOTE s) q INSTALLATION ALIGNMENT DETAIL W • 2Yf NEX BOLT 2tWefhT96LOOIONEO a BAACThT RYPa SEE DETAIL eHETTa) w rna•No1E frYPa b melw,Ecma eyrDK tiN- p` DD.NBINO EXPIRES MAY,$.2W IWDOD POST ISEESID.SPEC.o-zaup)1 MAILBOX1Tle'NOFf1EliCWIP 2sYASNERaA INSTALLATION aNrvrxtsrnATB f •°••••••' - DEMJL'`, &1EET]j .— m.]LOCN1Mf9GYP/ em..p.we...-....r..... TYPE"1'S'TYPE'2"' SEE f nr(e MCLANP,, STANDARD PLAN.. H-12'. PE, DaaFlaMFn , VADOP ` A`S CITY OF RENTON WOOD PO8TASSEMBLY DETAIL SEE 67EEL POSTASSEMBLY DML °i ^N• '„°.11 w STEEL POSTASSEMBLY DETAIL I tf, STANDARD PLANSTµ toRDEra)sNorsnwAllL.-Lp,STDATE 05/09/2002=_ PSP PAOfiHO2H' 4 - Tom^.^^^_.. Y, q v—ml qK J NIIFRECLYP FRONT VIEW TnP ow.) -\ + BOTTOMVIEW SNOW GUARD DETAIL nGIE tON 7 WEDwummYETI! Zlo1•d SECTION OA TW 2W 2W TOP VIEW 0 malawl 0 I I ISOMETRIC VIEW W' _H ...F -r. _.__.._.. .. MAILBOX a PLATFORM DNENSIONS - w2no2mm+soxs Pu,raau auwsroxs W L W N 1 1P ntn' B +r P' P 2 u n +2 W1 m• +r +• TOP VIEW L ` ` (IYP4 mr-w ISIDEYEN PLATFORM DETAIL TnP UWL(iYPJ I FRONTVPW 7 rN END VIEW TYPE 1 S TYPE 2 _ -,- STANDARD PLAN.H•12.. ET+ovamaE,s ` ADOPTED eT CITY.OF.RENTON' r-- O oT STANDARD PIANS - • .` o+ . LASTDATE 05(09!2002. SP PAGE=HO29 r. r. wnna,E t P'0VF%PA,JDm+etTK 1 00000d10°0060000O U00v0000000000990000000000'00000000M.00000000000' 000000000000000000000000000000 0000000000000000000000000 I'll 0 00 00000000000040040000000009000011 000 000900094p0040000090000000000 d00o40,11, 090 0 000 00 ,.. v—ml qK J NIIFRECLYP FRONT VIEW TnP ow.) -\ + BOTTOMVIEW SNOW GUARD DETAIL nGIE tON 7 WEDwummYETI! Zlo1•d SECTION OA TW 2W 2W TOP VIEW 0 malawl 0 I I ISOMETRIC VIEW W' _H ...F -r. _.__.._.. .. MAILBOX a PLATFORM DNENSIONS - w2no2mm+soxs Pu,raau auwsroxs W L W N 1 1P ntn' B +r P' P 2 u n +2 W1 m• +r +• TOP VIEW L ` ` (IYP4 mr-w ISIDE YEN PLATFORM DETAIL TnP UWL(iYPJ I FRONTVPW 7 rN END VIEW TYPE 1 S TYPE 2 _ -,- STANDARD PLAN.H•12.. ET+ovamaE,s ` ADOPTED eT CITY.OF.RENTON' r-- O oT STANDARD PIANS - • .` o+ . LASTDATE 05(09!2002. SP PAGE=HO29 (MKMXEPP]WMKRIHF]67GSXX>IPPIV (EXI (EXI HORIZONTAL BEND VALVE ANCHOR PLUGGED TEE TEE OFFSET PLUGGED CROSS VERTICAL BEND ALTERNATE VERTICAL BEND PLUGGED CROSS PLUGGED END FOR FUTURE EXPANSION DWG. NO. CONCRETE BLOCKING DETAIL W-1A Gregory G. Hill, P.E. GENERAL NOTES: PIPE SIZE MINIMUM BEARING AREA (SF) · · · FITTING DWG. NO. MINIMUM BEARING AREA DETAIL W-1B Gregory G. Hill, P.E. GENERAL NOTES: PIPE SIZE REQUIRED LENGTH (FT) OF RESTRAINED JOINT PIPE · · · · · · DWG. NO. RESTRAINED PIPE LENGTH DETAIL W-1C Gregory G. Hill, P.E. ROADWAY WITH CURB AND GUTTER AND/OR SIDEWALK ROADWAY WITH DITCHES DWG. NO. TYPICAL ROADWAY SECTIONS FOR RESIDENTIAL SUBDIVISION W-2 Gregory G. Hill, P.E. ROADWAY WITH DITCHES ROADWAY WITH CURB AND GUTTER DWG. NO. TYPICAL ROADWAY SECTIONS W-3 Gregory G. Hill, P.E. FIRE HYDRANT LOCATION FIRE HYDRANT ASSEMBLY IN CUT OR FILL DWG. NO. FIRE HYDRANT ASSEMBLY ROLLED CURB W-4 Gregory G. Hill, P.E. IN CUT OR FILL FIRE HYDRANT LOCATION FIRE HYDRANT ASSEMBLY DWG. NO. FIRE HYDRANT ASSEMBLY VERTICAL CURB W-5 Gregory G. Hill, P.E. DETAIL FIRE HYDRANT ASSEMBLY FIRE HYDRANT LOCATION IN CUT OR FILL DWG. NO. FIRE HYDRANT ASSEMBLY COMMERCIAL W-6 Gregory G. Hill, P.E. IN CUT OR FILL FIRE HYDRANT LOCATION FIRE HYDRANT ASSEMBLY PLAN VIEW FIRE HYDRANT IN FILL FIRE HYDRANT IN CUT DWG. NO. FIRE HYDRANT ASSEMBLY GRAVEL SHOULDER W-7 Gregory G. Hill, P.E. DWG. NO. A/C WATER MAIN REPLACEMENT @ WATER MAIN CROSSING W-12 Gregory G. Hill, P.E. VALVE MARKER POST BLOW-OFF ASSEMBLY MARKER POST VALVE BOX PROTECTIVE PAD DWG. NO. VALVE BOX PROTECTIVE PAD AND MARKER POST W-13 Gregory G. Hill, P.E. DWG. NO. VALVE OPERATING NUT EXTENSION W-14 Gregory G. Hill, P.E. PLAN ELEVATION DWG. NO. WATER SERVICE CONNECTION ONE INCH W-15 Gregory G. Hill, P.E. SINGLE SERVICE DWG. NO. METER SETTER DETAIL W-16 Gregory G. Hill, P.E. SINGLE SERVICE PLAN VIEW DWG. NO. INSTALLATION DETAIL FOR NEW SERVICE TRANSFER TO EXISTING METER W-16A Gregory G. Hill, P.E. SO OS CREE K W A T E R &SEWE R DI ST RI CT DWG. NO. 4", 6" OR 8" TEMPORARY BLOWOFF ASSEMBLY W-17 Gregory G. Hill, P.E. RAVEN LID N1324BLKWAT WITH SOOS CREEK LOGO RAVEN PLASTIC HDPE METER BOX NO. RMB132412-SWM-W DWG. NO. HDPE METER BOX FOR 1" METER W-18 Gregory G. Hill, P.E. DWG. NO. METER INSTALLATION W-19 Gregory G. Hill, P.E. PLAN ELEVATION DWG. NO. WATER SERVICE CONNECTION 1-1/2 INCH AND 2-INCH W-20 Gregory G. Hill, P.E. ELEVATION END VIEW DWG. NO. 1-1/2" & 2" METER SETTERS (ALTERNATE NO. 1) W-21 Gregory G. Hill, P.E. END VIEWELEVATION DWG. NO. 1-1/2" & 2" METER SETTERS (ALTERNATE NO. 2) W-22 Gregory G. Hill, P.E. ELEVATION END VIEW DWG. NO. 1-1/2" & 2" IRRIGATION METER SETTERS (ALTERNATE NO. 1) W-23 Gregory G. Hill, P.E. END VIEWELEVATION DWG. NO. 1-1/2" & 2" IRRIGATION METER SETTERS (ALTERNATE NO. 2) W-24 Gregory G. Hill, P.E. PLAN ELEVATION BY-PASS DETAIL (BRASS PIPE)PIPE SLEEVE DETAIL DWG. NO. DOUBLE CHECK DETECTOR BACKFLOW PREVENTION ASSY. W-25A Gregory G. Hill, P.E. GENERAL NOTES: VAULT SIZES PIPE SIZE MATERIAL LIST DWG. NO. DOUBLE CHECK DETECTOR MAT'L LIST AND GENERAL NOTES W-25B Gregory G. Hill, P.E. DWG. NO. LOCKING FRAME & COVER DETAIL W-25C Gregory G. Hill, P.E. PLAN ELEVATION PIPE SLEEVE DETAIL DWG. NO. 3", 4" AND 6" METERS W-26A Gregory G. Hill, P.E. MATERIAL LIST METER SIZE GENERAL NOTES: VAULT SIZES DWG. NO. 3", 4" AND 6" METERS MAT'L LIST AND GENERAL NOTES W-26B Gregory G. Hill, P.E. DWG. NO. LOCKING FRAME & COVER DETAIL W-26C Gregory G. Hill, P.E. ELEVATION PLAN DWG. NO. 3" TURBO METER W-27A Gregory G. Hill, P.E. MATERIAL LIST GENERAL NOTES: PIPE SLEEVE DETAIL DWG. NO. 3" TURBO METER MAT'L LIST & GENERAL NOTES W-27B Gregory G. Hill, P.E. DWG. NO. 2" AIR/VACUUM VALVE CHAMBER W-28 Gregory G. Hill, P.E. PLAN ELEVATIONEND VIEW DWG. NO. PIPE ANCHOR DETAIL W-29 Gregory G. Hill, P.E. PLAN ELEVATION DWG. NO. SACK SLOPE RETAINER W-30 Gregory G. Hill, P.E. FILTER FABRIC FENCE NOTES: 6' MAX POST SPACING MAY BE INCREASED TO 8' IF WIRE BACKING IS USED 2' - 0 " MI N 12 " MI N FILTER FABRIC JOINT, SEE NOTE 2 FILTER FABRIC 2" x 2" x 14 GA WIRE OR EQUIVALENT, IF STANDARD STRENGTH FABRIC USED FILTER FABRIC BACKFILL TRENCH WITH NATIVE SOIL OR 3/4" TO 1-1/2" WASHED GRAVEL WRAP FABRIC AROUND TRENCH MINIMUM 4" x 4" TRENCH 2" x 4" WOOD POSTS, STEEL FENCE POSTS, REBAR, OR EQUIVALENT 1.FILTER FABRIC FENCES SHALL BE INSTALLED ALONG CONTOURS WHENEVER POSSIBLE. 2.FILTER FABRIC SHALL BE PURCHASED IN A CONTINUOUS ROLL CUT TO THE LENGTH OF THE BARRIER TO AVOID USE OF JOINTS. WHEN JOINTS ARE NECESSARY, FILTER FABRIC SHALL BE SPLICED AT POSTS WITH A MINIMUM 6-INCH OVERLAP. USE STAPLES, WIRE RINGS, OR EQUIVALENT TO ATTACH FABRIC TO POSTS. 3.INSTALL FILTER FABRIC ACCORDING TO THE MANUFACTURER'S SPECIFICATIONS. 4.INSTALL THE ENDS OF THE FILTER FABRIC FENCE TO POINT SLIGHTLY UPSLOPE TO PREVENT SEDIMENT FROM FLOWING AROUND THE ENDS OF THE FENCE. 5.FILTER FABRIC FENCES SHALL BE REMOVED WHEN THEY HAVE SERVED THEIR USEFUL PURPOSE, BUT NOT BEFORE THE UPSLOPE AREA HAS BEEN PERMANENTLY STABILIZED. 6.FILTER FABRIC FENCES SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND AT LEAST DAILY DURING PROLONGED RAINFALL. ANY REQUIRED REPAIRS SHALL BE MADE IMMEDIATELY. 7.WHEN SEWER SERVICES CROSS FILTER FABRIC FENCE, SERVICE TRENCH, DITCH SECTION, AND FILTER FABRIC FENCE SHALL BE RESTORED IMMEDIATELY. 8.TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL MEET OR EXCEED ALL APPLICABLE PERMIT REQUIREMENTS. ADHERENCE TO THIS DETAIL DOES NOT RELIEVE THE CONTRACTOR FROM PROJECT PERMIT REQUIREMENTS. DWG. NO. FILTER FABRIC FENCE W-31 Gregory G. Hill, P.E. DWG. NO. TYPICAL UTILITY / WATER MAIN CROSSING W-32 Gregory G. Hill, P.E. TRENCH WIDTHS NOTES: DWG. NO. TYPICAL TRENCH DETAIL W-33 Gregory G. Hill, P.E. TRENCH WIDTHS NOTES: DWG. NO. TYPICAL TRENCH DETAIL (OUTSIDE ROADWAY) W-34 Gregory G. Hill, P.E. DWG. NO. VERTICAL REDIRECTION OF SCWSD WATER MAIN W-35A Gregory G. Hill, P.E. ?? DWG. NO. HORIZONTAL REDIRECTION OF SCWSD WATER MAIN W-35B Gregory G. Hill, P.E. WASHINGTON STATE DEPARTMENT OF ECOLOGY STORMWATER FACILITY SPECIFICATIONS INSERT General Partial funding of this project is being provided by the Washington State Department of Ecology’s (Ecology) Stormwater Grant Program. Compliance w ith State and Local Laws The construction of the project, including all subcontracted work, shall conform to the applicable requirements of state and local laws and ordinances. State Interest Exclusion It is anticipated that this project will be funded in part by the Washington State Department of Ecology. Neither the State of Washington nor any of its departments or employees are, or shall be, a party to this contract or any subcontract. Third Party Beneficiary Partial funding of this project is being provided through the Washington State Department of Ecology Stormwater Grant Program. All parties agree that the State of Washington shall be, and is hereby, named as an express third-party beneficiary of this contract, with full rights as such. Access to the construction site and to records The contractor shall provide for the safe access to the construction site and to the contractor's records by Washington State Department of Ecology personnel. The Contractor shall maintain accurate records and accounts to facilitate the Owner’s audit requirements and shall ensure that all subcontractors maintain auditable records. These Project records shall be separate and distinct from the Contractor’s other records and accounts. All such records shall be available to the Owner and to Washington State Department of Ecology personnel for examination. All records pertinent to this project shall be retained by the Contractor for a period of three (3) years after the final audit. Protection of the Environment No construction related activity shall contribute to the degradation of the environment, allow material to enter surface or ground waters, or allow particulate emissions to the atmosphere, which exceed state or federal standards. Any actions that potentially allow a discharge to state waters must have prior approval of the Washington State Department of Ecology. Inadvertent Discovery of Archeological Resources The contractor shall obtain a copy of the Inadvertent Discovery Plan from the Project Owner. The contractor shall keep a copy of the inadvertent discovery plan for the project on the work site at all times. The contractor shall immediately stop all work if human remains, cultural, or archeological resources are discovered in the course of construction. The contractor shall follow the inadvertent discovery plan in dealing with the human remains, cultural, or archeological resources. Project Signs The Contractor shall display Ecology’s logo in a manner that informs the public that the project received financial assistance from the Washington State Stormwater Grant Program. Utilization of Minority and Women Business Enterprises All bidders are encouraged to utilize certified minority-owned and women-owned businesses to the extent possible in the performance of this contract. All prospective bidders or persons submitting qualifications should take the following steps, when possible. 1. Include qualified minority and women's businesses on solicitation lists. 2. Assure that qualified minority and women's businesses are solicited whenever they are potential sources of services or supplies. 3. Divide the total requirements, when economically feasible, into smaller tasks or quantities to permit maximum participation by qualified minority and women's businesses. 4. Establish delivery schedules, where work requirements permit, which will encourage participation of qualified minority and women's businesses. 5. Use the services and assistance of the State Office of Minority and Women's Business Enterprises (OMWBE) and the Office of Minority Business Enterprises of the U.S. Department of Commerce, as appropriate. All prospective bidders must provide a list of the MBE/WBE subcontractors they intend to use during the project. This list must be provided with the bid package. Revised 3/25/15 Page 1 of 2 April 5, 2024 INSTRUCTIONS FOR COMPLETING THE APPLICATION AND PERMIT TO REMOVE OR DESTROY A SURVEY MONUMENT PER WAC 332-120-070 _______________________________________________________________________________________ •IMPORTANT: An Application And Permit To Remove Or Destroy A Survey Monument is intended to cover only one section. Separate permit forms must be submitted for each individual project Section. However, multiple monuments may be referenced within a given Section, provided that, indexing, monument descriptions, locations, and reference points for each monument are shown on attachments. •A minimum of three (3) reference points (RPs) must be in locations visible to the monument and in areas which are not expected to be disturbed by construction activities. •All re-set monuments MUST comply with RCW 58.09, The Manual of Survey Instructions as applicable, and local county or city standards. SURVEYOR INFORMATION •Enter the name, company name, phone number, and email address of the Licensed Surveyor who will stamp this application. •The Licensed Surveyor must stamp (seal) and sign, in the area designated (on the first page only) and enter the date in the box below the stamp. Please note that the boxed area for the seal is set up to accept an electronic insert in several different file formats. AT THE REQUEST OF (RESPONSIBLE PARTY) WAC 332-120-030(2) •Enter the name of the company or agency name of the Responsible Party. The Responsible Party is defined in WAC 120-030(2) as, “Any person, corporation, association, department, or subdivision of the state, county or municipality responsible for an activity that may cause a survey monument to be removed or destroyed shall be responsible for ensuring that the original survey point is perpetuated.” •Enter the contact’s name, phone number, and email address of the contact for the Responsible Party. PROJECT INFORMATION •FOR PROJECTS WITH MULTIPLE MONUMENTS, ATTACHMENTS MUST BE USED TO SHOW INDEXING, DESCRIPTIONS, LOCATIONS, AND REFERENCE POINTS FOR EACH MONUMENT. •Enter the Estimated Completion date, which is the anticipated date for when the monument(s) will be reset or will no longer be threatened by construction activities. This Page 2 of 2 April 5, 2024 date can be revised, if needed, as it is an estimate. If this date needs to be extended (revised) please contact the PLSO via email, at plso@dnr.wa.gov. •Enter the county or counties in which the monument is situated. •Provide indexing information (Township, Range, Section, Quarter [not 1/16th]). •Enter the Washington Plane Coordinate System coordinates for search purposes. •For multiple monuments, list coordinates for each in the “Comments” section or on attachments. •Specify the Coordinate Source, such as “measured”, “published City GIS”, “Google Earth“, “phone app”, etcetera. For projects with multiple monuments, coordinates must be shown in the “Comments” section or on attachments. ANTICIPATED REPLACEMENT MONUMENT DESCRIPTION AND OTHER COMMENTS •Enter the anticipated description of the permanent monument to be placed upon completion. •Enter any additional indexing, monument description, GLO designation (as applicable), or information that would aid in the intelligent interpretation of the work to be accomplished. _________________________________________________________________________________________________________________________ ATTACHMENT INFORMATION EACH ATTACHMENT MUST SHOW: •General location aids, as applicable: o Road names and intersections (or distance to nearest road intersection). o GLO designation (if applicable) OR distance and bearing to nearest GLO corner. o Reference survey map, or plat name, block, lot, etcetera. o Any other information that would aid in the intelligent interpretation of the location of the monument and RPs, such as power pole number, address, building corner, etcetera. •A detailed description of the monument and accessories found marking the position of the existing monument. •The temporary references set or existing reference monuments to which measurements have been taken to reestablish the destroyed monument to its original position. •Bearings and distances from the monument to-be-removed to the reference points. •Any narrative, sketch, or photo that would aid in the intelligent interpretation of the work being accomplished. APPLICATION AND PERMIT TO REMOVE OR DESTROY A SURVEY MONUMENT PER RCW 58.24.040(8) AND WAC 332-120-070 DNR PERMIT NO:DATE: SURVEYOR INFORMATION AT THE REQUEST OF (RESPONSIBLE PARTY) (WAC 332-120-030(2)) SURVEYOR NAME: COMPANY NAME: PHONE NUMBER: EMAIL ADDRESS: SIGNED PLS SEAL: DATE: COMPANY/AGENCY: CONTACT NAME: PHONE NUMBER: EMAIL ADDRESS: 1st County:2nd County: N: E:Datum (e.g., NAD83):Zone: T: Washington Plane Coordinates: (for search purposes) R: W S:1/4: E PAGE 1 OF: You are hereby authorized to remove or destroy the herein described survey monument: THIS SECTION FOR PLSO USE ONLY Anticipated Replacement Monument Description and Other Comments: (Form prescribed 04/05/2024 by the Public Land Survey Office, Dept. of Natural Resources, pursuant to RCW 58.24.040 (8)) PROJECT INFORMATION Estimated Completion: Coordinate Source: associated earth sciences incorporated Associated Earth Sciences, Inc. 911 5th Avenue Kirkland, WA 98033 P (425) 827 7701 Subsurface Exploration, Geologic Hazard, and Geotechnical Engineering Report SE 172ND ST. AND 125TH AVE. SE GSI Prepared For: OSBORN CONSULTING, INC. Project No. 20190100H001 March 23, 2020 Kirkland | Tacoma | Mount Vernon 425-827-7701 | www.aesgeo.com March 23, 2020 Project No. 20190100H001 Osborn Consulting, Inc. 1800 112th Avenue NE, Suite 220-E Bellevue, Washington 98004 Attention: Mr. Cheyenne Covington, P.E. Subject: Subsurface Exploration, Geologic Hazard, and Geotechnical Engineering Report SE 172nd St. and 125th Ave. SE GSI Renton, Washington Dear Mr. Covington: We are pleased to present the enclosed copies of the above-referenced report. This report summarizes the results of our subsurface exploration, geologic hazard, and geotechnical engineering studies and offers recommendations for the design and development of the proposed project, as currently envisioned. Our recommendations are preliminary in that construction details have not been finalized at the time this report was prepared. We have enjoyed working with you on this study and are confident that the recommendations presented in this report will aid in the successful completion of your project. If you should have any questions, or if we can be of additional help to you, please do not hesitate to call. Sincerely, ASSOCIATED EARTH SCIENCES, INC. Kirkland, Washington ______________________________ Jennifer H. Saltonstall, L.G., L.Hg. Principal Geologist/Hydrogeologist JHS/ld - 20190100H001-2 SUBSURFACE EXPLORATION, GEOLOGIC HAZARD, AND GEOTECHNICAL ENGINEERING REPORT SE 172ND ST. AND 125TH AVE. SE GSI Renton, Washington Prepared for: Osborn Consulting, Inc. 1800 112th Avenue NE, Suite 220-E Bellevue, Washington 98004 Prepared by: Associated Earth Sciences, Inc. 911 5th Avenue Kirkland, Washington 98033 425-827-7701 March 23, 2020 Project No. 20190100H001 Subsurface Exploration, Geologic Hazard, and SE 172nd St. & 125th Ave. SE GSI Geotechnical Engineering Report Renton, Washington Project and Site Conditions March 23, 2020 ASSOCIATED EARTH SCIENCES, INC. JG/ld - 20190100H001-2 Page 1 I. PROJECT AND SITE CONDITIONS 1.0 INTRODUCTION This report presents the results of Associated Earth Sciences, Inc.’s (AESI’s) subsurface exploration, geologic hazard, and geotechnical engineering study for the proposed SE 172nd Street and 125th Avenue SE Green Stormwater Infrastructure (GSI) project located in Renton, Washington. (See the “Vicinity Map,” Figure 1.) The approximate locations of the explorations accomplished for this study are presented on Figure 2. An aerial image and LIDAR-based topography for the near-project area are presented on Figure 3. In the event that any changes in the nature, design, or location of the stormwater improvements are planned, the conclusions and recommendations contained in this report should be reviewed and modified, or verified, as necessary. 1.1 Purpose and Scope The purpose of this study was to provide subsurface data to be utilized in the design and construction of the above-referenced project. Our study included reviewing available geologic literature, drilling five exploration borings, and performing geologic studies to assess the type, thickness, distribution, and physical properties of the subsurface sediments and groundwater conditions. Geologic hazard evaluations and geotechnical engineering studies were also conducted to determine suitable geologic hazard mitigation techniques, temporary shoring/excavation, backfill recommendations, dewatering recommendations, and infiltration feasibility recommendations. This report summarizes our current geotechnical fieldwork and offers geotechnical hazard mitigation and development recommendations based on our present understanding of the project. 1.2 Authorization Written authorization to proceed with this study was granted by Osborn Consulting, Inc. by means of our signed “Agreement for Professional Services - Subconsultant,” dated April 24, 2019. This report has been prepared for the exclusive use of Osborn Consulting, Inc., the City of Renton, and their agents, for specific application to this project. Within the limitations of scope, schedule, and budget, our services have been performed in accordance with generally accepted geotechnical engineering and engineering geology practices in effect in this area at the time our report was prepared. No other warranty, express or implied, is made. Subsurface Exploration, Geologic Hazard, and SE 172nd St. & 125th Ave. SE GSI Geotechnical Engineering Report Renton, Washington Project and Site Conditions March 23, 2020 ASSOCIATED EARTH SCIENCES, INC. JG/ld - 20190100H001-2 Page 2 2.0 PROJECT AND SITE DESCRIPTION The City of Renton SE 172nd St. and 125th Ave. SE GSI project area consists of approximately 4,500 lineal feet of full street right-of-way within the City of Renton extending approximately half a block north of SE 172nd Street along 122nd Avenue SE, 123rd Avenue SE, 124th Avenue SE, 125th Avenue SE, and approximately two blocks along SE 172nd Street. Stormwater runoff from these streets is currently collected and conveyed east through private parcels and south within a street right-of-way into a storm system on SE 172nd Street where it discharges into a wetland located approximately 150 feet south of the intersection of SE 172nd Street and 127th Avenue SE. This runoff eventually flows into Big Soos Creek. The topography in the site area is generally flat lying to gently sloping, with asphalt-surfaced roadways and gravel or grass-covered shoulders. The existing paved surfaces include patching related to the installation of a waterline. Based on our review of project plans provided by Osborn Consulting, Inc., we understand that the current water system is a replacement of an abandoned water system which included lines under the eastern shoulders of 122nd through 125th Avenues. The proposed improvements include a new stormwater conveyance system, with 12- and 18-inch-diameter stormlines, and various green infrastructure improvements, such as bioretention facilities and pervious concrete sidewalks supplemented with General Use Level Designation (GULD) facilities to collect and treat stormwater runoff from approximately 2 acres of impervious surfaces. Based on our review of “60% submittal” plan set by Osborn Consulting, Inc., dated September 27, 2019, we anticipate site grading to include limited cuts and fills, and stormline installation to include trench depths ranging from approximately 3 to 10 feet. Much of the alignment of the proposed sidewalks will be at or near to the alignment of the above-mentioned abandoned water system. 3.0 SUBSURFACE EXPLORATION AESI completed a subsurface exploration program consisting of five exploration borings on February 4, 2020, to gain subsurface information about the site. The various types of soils, as well as the depths where characteristics of the soils changed, are indicated on the exploration logs presented in Appendix A. The depths indicated on the logs where conditions changed may represent gradational variations between soil types. Our explorations were approximately located in the field by measuring from known site features and are shown on Figure 2 and Figure 3. The conclusions and recommendations presented in this report are based, in part, on the exploration borings completed for this study. The number, locations, and depths of the explorations were completed within site/access constraints including those posed by existing Subsurface Exploration, Geologic Hazard, and SE 172nd St. & 125th Ave. SE GSI Geotechnical Engineering Report Renton, Washington Project and Site Conditions March 23, 2020 ASSOCIATED EARTH SCIENCES, INC. JG/ld - 20190100H001-2 Page 3 buried utilities, overhead lines, and driveways. The boring locations were selected to provide both general site information and area-specific information based on the proposed site layout. Changes to the site layout may require the completion of additional subsurface explorations. Because of the nature of exploratory work below ground, interpolation of subsurface conditions between field explorations is necessary. It should be noted that differing subsurface conditions may be present due to the random nature of deposition and the alteration of topography by past grading and/or filling. The nature and extent of any variations between the field explorations may not become fully evident until construction. If variations are observed at that time, it may be necessary to re-evaluate specific recommendations in this report and make appropriate changes. 3.1 Exploration Borings To avoid damaging existing utilities, a vacuum truck was used to remove the uppermost 4 feet of soil from each boring. The exploration borings were then completed by a track-mounted drill rig advancing a hollow-stem auger. During the drilling process, samples were obtained at generally 2.5- or 5-foot-depth intervals. The exploration borings were continuously observed and logged by a geologist from our firm. The exploration logs presented in Appendix A are based on the field logs, drilling action, and inspection of the samples secured. Disturbed but representative samples were obtained by using the Standard Penetration Test (SPT) procedure in accordance with ASTM International (ASTM) D-1586. This test and sampling method consists of driving a standard 2-inch, outside-diameter, split-barrel sampler a distance of 18 inches into the soil with a 140-pound hammer free-falling a distance of 30 inches. The number of blows for each 6-inch interval is recorded, and the number of blows required to drive the sampler the final 12 inches is known as the Standard Penetration Resistance (“N”) or blow count. If a total of 50 blows are recorded at or before the end of one 6-inch interval, the blow count is recorded as the number of blows for the corresponding number of inches of penetration. The resistance, or N-value, provides a measure of the relative density of granular soils or the relative consistency of cohesive soils. These values are plotted on the attached boring logs. The samples obtained from the split-barrel sampler were classified in the field, and representative portions placed in watertight containers. The samples were then transported to our laboratory for further visual classification and geotechnical laboratory testing, as necessary. The various types of soil and groundwater elevations, as well as the depths where soil and groundwater characteristics changed, are indicated on the exploration boring logs presented in Appendix A of this report. Subsurface Exploration, Geologic Hazard, and SE 172nd St. & 125th Ave. SE GSI Geotechnical Engineering Report Renton, Washington Project and Site Conditions March 23, 2020 ASSOCIATED EARTH SCIENCES, INC. JG/ld - 20190100H001-2 Page 4 4.0 SUBSURFACE CONDITIONS Subsurface conditions at the project site were inferred from the field explorations completed for this study, visual reconnaissance of the site, and review of applicable geologic literature. As shown on the boring logs, the exploration borings generally encountered a variable thickness of fill over glacial sediments. The following section presents more detailed subsurface information organized from the youngest (shallowest) to the oldest (deepest) soil types. 4.1 Stratigraphy Asphalt/Crushed Rock A surficial layer of asphalt pavement underlain by crushed rock road base was encountered at all exploration locations. Asphalt pavement thickness was generally 4 to 6 inches thick, with approximately 4 inches of crushed rock road base underneath. Fill Fill soils (soils not naturally placed) were encountered at the locations of exploration borings EB-2 through EB-4 to approximate depths of 3 feet to 5 feet below the ground surface. This fill generally consisted of medium dense, dark brown, sandy gravel with some silt. We interpret the encountered fill as likely resulting from past grading activities associated with roadway and/or plat construction. Fill thicknesses can vary over short distances and may be deeper than observed in our explorations. We are not aware of available documentation for placement of the existing fill or trench backfill. As our explorations were located to avoid existing buried utilities, we did not encounter trench backfill. From the plans provided by Osborn Consulting, it is likely that the proposed improvements will encounter existing fill and trench backfill associated with the existing buried utilities. Although our explorations did not encounter large debris, cobbles, or boulders within the fill, these materials may be present at random locations and depths. Due to their variable density and content, the existing fill soils are not suitable for direct support of grade-sensitive pipelines. Depending on site conditions at the time of construction, remediation of the fill may be feasible with recompaction or removal and replacement with structural fill. Vashon Ice Contact Deposits At exploration boring EB-2, beneath the fill, our exploration encountered medium dense, silty, fine sand ranging to stiff, sandy silt with trace coarse sand dropstones, interpreted as ice contact deposits. Ice contact deposits can consist of a wide variety of sediment types initially deposited above, adjacent to, or within a glacial ice mass and later re-deposited when the ice melts. Ice contact sediments can be normally consolidated or glacially overridden. Ice contact deposits at this site primarily consist of fine sand and silt and are considered moisture sensitive. At the Subsurface Exploration, Geologic Hazard, and SE 172nd St. & 125th Ave. SE GSI Geotechnical Engineering Report Renton, Washington Project and Site Conditions March 23, 2020 ASSOCIATED EARTH SCIENCES, INC. JG/ld - 20190100H001-2 Page 5 location of EB-2, the ice contact sediments extended below the maximum depth explored of 11.5 feet below the ground surface. Vashon Lodgement Till Sediments encountered below the fill at exploration borings EB-1, EB-3, EB-4, and EB-5 generally consisted of dense to very dense, silty sand with some gravel. We interpret these sediments to be representative of Vashon lodgement till. The Vashon lodgement till was deposited directly from basal, debris-laden glacial ice during the Vashon Stade of the Fraser Glaciation approximately 12,500 to 15,000 years ago. The high relative density of the unweathered till is due to its consolidation by the massive weight of the glacial ice from which it was deposited. This unit is generally suitable for support of pipelines. All sediments of glacial origin may contain large cobbles or boulders at random locations. At the locations of EB-1, EB-3, EB-4, and EB-5, the lodgement till extended below the maximum depths explored of 10.3 feet below the ground surface. 4.2 Regional Mapping Geologic Mapping Review of the regional geologic map titled Geologic Map of the Renton Quadrangle, King County, Washington, U.S. Geological Survey (USGS) Publication GQ-405, by D.R. Mullineaux (1965) indicates that the site is underlain by Vashon lodgement till (Qvt). Our interpretation of the sediments encountered at the subject site is in general agreement with the regional geology map. Soil Mapping Review of the US Department of Agriculture Natural Resources Conservation Service (NRCS) Web Soil Survey indicates that the soil in the vicinity of the site consists of Arents-Alderwood and Alderwood soils series. Arents-Alderwood soils are Alderwoods soils that have been disturbed by urbanization. Alderwood soils generally form from the weathering of glacial till. An area of as Seattle muck (Sk) soils is present in a low area extending south from 127th Avenue. Seattle muck soils are generally associated with wetland areas. Our interpretation of the sediments encountered at the subject site is in general agreement with the regional soils map. 4.3 Hydrology At the time of our explorations, we encountered groundwater seepage in exploration borings EB-1, EB-3, EB-4, and EB-5 at depths of approximately 4 feet to 6 feet. These depths generally corresponded with the slightly oxidized, moist soils that were observed within the upper portion of the Vashon lodgement till sediments indicating that perched groundwater likely occurs Subsurface Exploration, Geologic Hazard, and SE 172nd St. & 125th Ave. SE GSI Geotechnical Engineering Report Renton, Washington Project and Site Conditions March 23, 2020 ASSOCIATED EARTH SCIENCES, INC. JG/ld - 20190100H001-2 Page 6 seasonally. Perched groundwater, also known as “interflow,” occurs when vertical infiltration is impeded by less-permeable soils and horizontal migration occurs. It should be noted that groundwater levels below the site fluctuate in response to such factors as changes in season, precipitation, and on- and off-site land use. Our field explorations were conducted in early February when groundwater levels are typically elevated. 4.4 Laboratory Testing We completed laboratory testing of selected soil samples collected from our exploratory borings. A total of four grain-size analyses were performed. Copies of the laboratory test results are included in Appendix B. Subsurface Exploration, Geologic Hazard, and SE 172nd St. & 125th Ave. SE GSI Geotechnical Engineering Report Renton, Washington Geologic Hazards and Mitigations March 23, 2020 ASSOCIATED EARTH SCIENCES, INC. JG/ld - 20190100H001-2 Page 7 II. GEOLOGIC HAZARDS AND MITIGATIONS The following discussion of potential geologic hazards is based on the geologic conditions as observed and discussed herein. 5.0 LANDSLIDE HAZARDS AND MITIGATION Due to the relatively flat site topography and distance to significant slopes, it is our opinion that the risk of damage to the proposed project by landsliding is low. Provided that the recommendations presented in this report are properly followed, no additional landslide hazard mitigation is recommended for this project. 6.0 SEISMIC HAZARDS AND MITIGATION Earthquakes occur in the Puget Lowland with great regularity. The vast majority of these events are small and are usually not felt by people. However, large earthquakes do occur, as evidenced by the 1949, 7.2-magnitude event; the 1965, 6.5-magnitude event; and the 2001, 6.8-magnitude event. The 1949 earthquake appears to have been the largest in this area during recorded history. Evaluation of return rates indicates that an earthquake of a magnitude between 6.0 and 7.0 is likely within a given 25- to 40-year period. Generally, there are four types of potential geologic hazards associated with large seismic events: 1) surficial ground rupture, 2) seismically induced landslides, 3) liquefaction, and 4) ground motion. The potential for each of these hazards to adversely impact the proposed project is discussed below. 6.1 Surficial Ground Rupture The nearest known fault trace to the project site is the Seattle Fault Zone, which lies approximately 4 miles to the northeast. Recent studies by the USGS (e.g., Johnson et al., 1994, Origin and Evolution of the Seattle Fault and Seattle Basin, Washington, Geology, v. 22, p.71-74; and Johnson et al., 1999, Active Tectonics of the Seattle Fault and Central Puget Sound Washington - Implications for Earthquake Hazard, geological Society of America Bulletin, July 1999, v. 111, n. 7, p. 1042-1053) have provided evidence of surficial ground rupture along a northern splay of the Seattle Fault. The recognition of this fault is relatively new, and data pertaining to it are limited, with the studies still ongoing. According to the USGS studies, the latest movement of this fault was about 1,100 years ago when about 20 feet of surficial displacement took place. This displacement can presently be seen in the form of raised, wave-cut beach Subsurface Exploration, Geologic Hazard, and SE 172nd St. & 125th Ave. SE GSI Geotechnical Engineering Report Renton, Washington Geologic Hazards and Mitigations March 23, 2020 ASSOCIATED EARTH SCIENCES, INC. JG/ld - 20190100H001-2 Page 8 terraces along Alki Point in West Seattle and Restoration Point at the south end of Bainbridge Island. The recurrence interval of movement along this fault system is still unknown, although it is hypothesized to be in excess of several thousand years. Due to the suspected long recurrence interval, the potential for surficial ground rupture is considered to be low during the expected life of the project, and no mitigation efforts beyond complying with the current 2015 International Building Code (IBC) are recommended. 6.2 Seismically Induced Landslides Due to the relatively flat site topography and distance to significant slopes, it is our opinion that the risk of damage to the proposed project by seismically induced landsliding is low. Provided that the recommendations presented in this report are properly followed, no additional landslide hazard mitigation is recommended for this project. 6.3 Liquefaction Liquefaction is a process through which unconsolidated soil loses strength as a result of vibrations, such as those which occur during a seismic event. During normal conditions, the weight of the soil is supported by both grain-to-grain contacts and by the fluid pressure within the pore spaces of the soil below the water table. Extreme vibratory shaking can disrupt the grain-to-grain contact, increase the pore pressure, and result in a temporary decrease in soil shear strength. The soil is said to be liquefied when nearly all of the weight of the soil is supported by pore pressure alone. Liquefaction can result in deformation of the sediment and settlement of overlying structures. Areas most susceptible to liquefaction include those areas underlain by non-cohesive silt and sand with low relative densities, accompanied by a shallow water table. The subsurface conditions encountered at the site pose a low risk of liquefaction due to their relatively high density from glacial consolidation. No detailed liquefaction analysis was completed as part of this study, and none is warranted, in our opinion. 6.4 Ground Motion Design of structural elements should follow 2015 IBC standards using Site Class “D” as defined in Table 20.3-1 of American Society of Civil Engineers (ASCE) 7 – Minimum Design Loads for Buildings and Other Structures. Subsurface Exploration, Geologic Hazard, and SE 172nd St. & 125th Ave. SE GSI Geotechnical Engineering Report Renton, Washington Geologic Hazards and Mitigations March 23, 2020 ASSOCIATED EARTH SCIENCES, INC. JG/ld - 20190100H001-2 Page 9 7.0 EROSION HAZARDS AND MITIGATION The Renton Municipal Code defines Low Erosion Hazard Areas as soils characterized by the Natural Resource Conservation Service (NRCS) as having slight or moderate erosion potential, and a slope less than fifteen percent (15%). The U.S. Department of Agriculture (USDA) Natural Resources Conservation Service (NRCS) Web Soil Survey maps the soil in the vicinity of the site as Arents-Alderwood materials, 6 to 15 percent slopes (AmC), and Alderwood gravelly sandy loam, 0 to 15 percent slopes (AgB, AgC). These soils have a slight erosion potential and are situated on slopes ranging from 0 to 15 percent. Therefore, the project site is classified as a Low Erosion Hazard Area under the Renton Municipal Code. Based on the relatively flat site topography and presence of fine-grained soils, the erosion hazard at the site is considered low to moderate, and a properly developed, constructed, and maintained erosion control plan consistent with local standards and best management practices is recommended for this project. Maintaining cover measures atop disturbed ground provides significant reduction to the potential generation of turbid runoff and sediment transport. During the local wet season (October 1st through March 31st), exposed soil should not remain uncovered for more than 2 days, unless it is actively being worked. Ground-cover measures can include erosion control matting, plastic sheeting, straw mulch, crushed rock, recycled concrete, or mature hydroseed. To reduce the potential for off-site sediment transport during construction, we recommend the following: 1. If possible, construction should proceed during the drier periods of the year, and disturbed areas should be revegetated, paved, or otherwise protected as soon as possible. 2. All stormwater from impermeable surfaces should be directed to a stormwater drainage system or temporary storage facilities and kept away from the proposed work areas. 3. Ground disturbance beyond the project alignment should be kept to a minimum. 4. Temporary sediment catchment facilities adjacent to the proposed stormwater alignment should be cleaned out and maintained periodically, as necessary, to maintain their capacity and function. Provide and maintain inlet protection of catch basins and drain systems that receive runoff from planned work areas. Subsurface Exploration, Geologic Hazard, and SE 172nd St. & 125th Ave. SE GSI Geotechnical Engineering Report Renton, Washington Geologic Hazards and Mitigations March 23, 2020 ASSOCIATED EARTH SCIENCES, INC. JG/ld - 20190100H001-2 Page 10 5. Soils that will be stockpiled at the site should be stored in such a manner as to reduce erosion. Protective measures may include, but are not necessarily limited to, covering with plastic sheeting or the use of straw bales/silt fences. 6. Where needed, construction access should be constructed with quarry spall surfacing or equivalent according to City of Renton regulations. Maintain existing paved surfaces, where practical, and sweep as needed. It is our opinion that with the proper implementation of the Temporary Erosion and Sedimentation Control (TESC) plans and by field-adjusting appropriate erosion mitigation (BMPs) throughout construction, the potential adverse impacts from erosion hazards on the project may be mitigated. 8.0 COAL MINE HAZARDS AND MITIGATION According to the City of Renton GIS Services COR Maps, the nearest mapped coal mine hazard lies approximately 0.25 miles to the west. No coal mine hazard analysis was completed for this study, and none is warranted in our opinion. Subsurface Exploration, Geologic Hazard, and SE 172nd St. & 125th Ave. SE GSI Geotechnical Engineering Report Renton, Washington Design Recommendations March 23, 2020 ASSOCIATED EARTH SCIENCES, INC. JG/ld - 20190100H001-2 Page 11 III. DESIGN RECOMMENDATIONS 9.0 INTRODUCTION Our explorations indicate that, from a geotechnical standpoint, the planned stormwater improvements are feasible provided that the recommendations in this report are followed. The sediment types excavated during trenching will likely be Vashon lodgement till, Vashon ice contact deposits, or previously placed fill. These materials will largely consist of sand with variable but significant quantities of gravel and silt, and possibly random cobbles and/or boulders. As stated above, we encountered groundwater seepage in exploration borings EB 1, EB-3, EB-4, and EB-5 at depths of approximately 4 feet to 6 feet below the ground surface, and interpreted that seepage as perched groundwater, also known as “interflow,” that likely occurs seasonally. For portions of the planned stormwater alignment extending below the interflow zone, suitable temporary shoring and trench sidewall slopes will be required to mitigate seepage and potential caving conditions. For these reasons, we recommend that construction occur during the dry season, typically between June and September, and that the contractor be prepared for saturated soils that are prone to caving and groundwater flow along the pipe alignment. New infrastructure for the project includes excavations for the drainage facilities and associated underdrains, and other piping along with street restoration. The following recommendations pertain to the site and infrastructure improvements for work occurring within the City’s public right-of-way. In general, all work shall be done in accordance with current City of Renton specifications. Based on our subsurface exploration, the material exposed at the base of the stormwater trenches is anticipated to consist of native glacial till in most areas. Ice-contact deposits (silt) were encountered in exploration boring EB-2 and may be exposed at the base of trench excavation in this area. Existing fill was encountered in most of the explorations, ranging in thickness from 3 to 5 feet. Both the glacial till and ice-contact deposits contain a significant amount of fine-grained sediments and are, therefore, not considered suitable receptor sediments for infiltrating large volumes of stormwater. 10.0 SITE PREPARATION Site preparation should include removal of all trees, brush, debris, and any other deleterious material within the proposed work area. Additionally, organic soil, if encountered, should be segregated from mineral soils in the trench excavation. Since the density and composition of the soil can vary in existing utility trenches, random soft/organic pockets may exist, and the depth Subsurface Exploration, Geologic Hazard, and SE 172nd St. & 125th Ave. SE GSI Geotechnical Engineering Report Renton, Washington Design Recommendations March 23, 2020 ASSOCIATED EARTH SCIENCES, INC. JG/ld - 20190100H001-2 Page 12 and extent of organics/stripping depths can best be determined in the field by the geotechnical engineer or engineering geologist. 10.1 Temporary Cut Slopes In our opinion, stable construction slopes should be the responsibility of the contractor and should be determined during construction based on the local soil and groundwater conditions encountered at the particular location at that time. We anticipate that trenched excavations for the planned stormwater improvements will likely be vertical, with trench boxes used where warranted, as described in the “Trenching Considerations” section of this report. For estimating purposes, however, we anticipate that temporary, unsupported cut slopes in fill soils or in Vashon ice contact sediments can be planned at a maximum slope of 1.5H:1V (Horizontal:Vertical), and that cut slopes in dense to very dense Vashon lodgement till sediments can be made at a maximum slope of about 1H:1V. As is typical with earthwork operations, some sloughing and raveling may occur, and cut slopes may have to be adjusted in the field. If groundwater seepage is encountered in cut slopes, or if surface water is not routed away from temporary cut slope faces, flatter slopes will be required. In addition, WISHA/OSHA regulations should be followed at all times. 10.2 Site Disturbance The contractor must use care during site preparation and excavation operations so that the underlying soils are not softened, particularly during wet weather conditions. If disturbance occurs, the softened soils should be removed and the area brought to grade with structural fill. Softened soils are defined as any soil not in a firm and unyielding condition. We anticipate that wet weather construction would increase the earthwork costs over dry weather construction. 11.0 TRENCHING CONSIDERATIONS 11.1 Excavation Much of the planned stormwater improvements will likely run below paved areas. Therefore, it will be necessary to sawcut the existing pavement prior to trenching operations. There will also likely be existing buried utilities that will complicate the excavation process. Overhead power lines are not expected to interfere with the planned construction, but nearby tree limbs may limit the pick-and-swing radius of the trenching equipment. We anticipate that the installation of new stormwater conveyance system, where needed, will require vertically sided trench excavations. For trenches less than 4 feet in depth, where caving Subsurface Exploration, Geologic Hazard, and SE 172nd St. & 125th Ave. SE GSI Geotechnical Engineering Report Renton, Washington Design Recommendations March 23, 2020 ASSOCIATED EARTH SCIENCES, INC. JG/ld - 20190100H001-2 Page 13 or groundwater seepage is not encountered, the trenches may be open-cut for access. For trenches 4 feet or deeper, or where caving, sloughing, or groundwater seepage is encountered, we recommend the use of suitable trench boxes or the temporary cut slopes described above. We anticipate that soils to be encountered during the excavation process will provide moderate resistance to digging. Cobbles and boulders should be expected during excavation. Groundwater seepage into the trench, if present, can cause some caving/sloughing to occur. The contractor should be experienced with excavating in moist to wet subgrade conditions. 11.2 Pipe Subgrade The undisturbed native soils are suitable for support of the pipe. In the event that soft, organic, or disturbed soils are encountered at the bottom of the trench, these soils should be overexcavated, up to 1 foot where needed, and replaced with structural backfill where it is encountered. An AESI representative should be onsite to observe subgrade conditions and document backfill operations. 11.3 Pipe Bedding Pipe zone bedding material should be specified by the civil engineer following the pipe manufacturer’s requirements. We recommend that pipe bedding placement should conform to Washington State Department of Transportation (WSDOT) Standard Specification 7-08.3(1)C. 11.4 Backfill The majority of the near-surface soils excavated for the proposed improvements will likely be moist, silty, fine to medium sand with gravel. These soils are suitable for use as backfill material provided they are placed at or near (within 2 percent) optimum moisture contents. The backfill soils should be substantially free of organic materials and rocks larger than about 6 inches in nominal dimension. We anticipate that during the wet season the on-site soils will not likely be suitable for backfill due to moisture contents being elevated above optimum moisture for the soil to achieve suitable compaction. Above the pipe zone bedding material, on-site sediments may be used for backfill provided that they can be compacted to at least 95 percent of the modified Proctor maximum dry density, as defined by ASTM D-1557. If the material excavated from the trench is not suitable for backfill due to high moisture or a high degree of deleterious material, then imported backfill soil consisting of material conforming to WSDOT Standard Specification 9-03.10 “Bank Run Gravel for Trench Backfill” may be used and compacted to the required density. If select import material is not available, or if there is a need for a higher strength material or in areas congested by other utilities making compaction difficult, a controlled density fill (CDF) may be used. We recommend the use Subsurface Exploration, Geologic Hazard, and SE 172nd St. & 125th Ave. SE GSI Geotechnical Engineering Report Renton, Washington Design Recommendations March 23, 2020 ASSOCIATED EARTH SCIENCES, INC. JG/ld - 20190100H001-2 Page 14 of 50 to 100 pounds per square inch (psi) compressive strength CDF mix to facilitate future excavation and provide performance equivalent to well compacted soil backfill. Trench backfill should be placed in uniform, horizontal lifts and compacted to the above standard. Thickness of structural backfill layers before compaction should not exceed 1.5 feet for a large, excavator-mounted, vibratory plate-type compactor. Smaller compaction equipment will require use of thinner lifts; hand-operated mechanical compactors should be used to compact lifts no thicker than 6 inches. Final lift thickness should be based on field performance testing using actual materials under field conditions and uniform compactive effort. In some cases, additional pipe zone bedding material above the pipe may be advisable to minimize required compactive effort needed to achieve the specified density in this area. 12.0 PERVIOUS CONCRETE SIDEWALKS From “60% submittal” plans provided to AESI by Osborn Consulting, we understand that pervious concrete sidewalks are proposed along the east shoulders of 122nd Avenue SE, 123rd Avenue SE, 124th Avenue SE, 125th Avenue SE, and along the north shoulder of SE 172nd Street. The pervious concrete detail specifies 4 inches of pervious cement concrete placed over a minimum 6 inches of aggregate base surrounded by a geotextile fabric layer. An underdrain is not included. We anticipate that stormwater that passes through the pervious concrete sidewalk section will encounter existing fill, existing utility trench backfill, or the natural, glacially derived sediments. It is likely that this stormwater will enter the fill soils and migrate horizontally as vertical infiltration will be impeded by the underlying Vashon lodgement till and ice contact deposits, both of which contain large quantities of silt and fine sand. Horizontal migration of perched groundwater, known as “interflow”, occurs naturally within the subsurface, causing groundwater to infiltrate into and along the fill soils. If the current interflow within the existing fill and utility trench backfill has not caused adverse impacts to nearby utilities or roadways, it is our opinion that the relatively small amount of additional groundwater from the proposed pervious concrete sidewalks should not result in a significant increase in the risk of adverse impacts to nearby infrastructure, relative to the existing condition. The pervious sidewalk areas will generally mimic the interflow of the converted landscaped areas. 13.0 DRAINAGE AND DEWATERING CONSIDERATIONS Groundwater seepage was encountered in exploration borings EB-1, EB-3, EB-4, and EB-5 at the time of drilling, February 4, 2020. The depth of groundwater observed ranged from 4 feet to 6 feet and was interpreted as perched on the underlying Vashon lodgement till. It should be Subsurface Exploration, Geologic Hazard, and SE 172nd St. & 125th Ave. SE GSI Geotechnical Engineering Report Renton, Washington Design Recommendations March 23, 2020 ASSOCIATED EARTH SCIENCES, INC. JG/ld - 20190100H001-2 Page 15 noted that the depth or occurrence of groundwater seepage may vary in response to such factors as changes in season, precipitation, and site use. The quantity and duration of flow from an excavation that encounters groundwater depends on a number of factors including topography, size and depth of the excavation, proximity to surface water features, soil grain size, lateral extent of the water-bearing zone or aquifer, and season. We expect that the majority of groundwater seepage can be managed by the installation of temporary trench sump systems during trench excavation, and we recommend work proceed during the drier summer months. 14.0 INFILTRATION FEASIBILITY RECOMMENDATIONS The feasibility of stormwater infiltration depends upon the presence of a suitable receptor native soil of sufficient thickness, extent, permeability, and vertical separation from groundwater. Our explorations completed for this study encountered medium dense fill underlain by very dense, silty, Vashon lodgement till sediments or stiff Vashon ice contact deposits. Laboratory sieve analyses of samples of the Vashon lodgement till collected from borings EB-1, EB-3, EB-4, and EB-5 indicate that the lodgement till contains between 23.7 percent and 34.9 percent silt and clay-sized particles. A copy of the laboratory results is included in Appendix B. The existing fill is not a suitable infiltration receptor due to its variable texture, silt, and organic content. Because of their elevated silt content, the Vashon lodgement till and Vashon ice contact sediments underlying the site exhibit a low permeability and are not considered to be suitable receptor soils for stormwater infiltration. Therefore, infiltration is not recommended for concentrated flows; however, dispersed flow through pervious sidewalks should mimic that resulting from the to-be-converted pervious landscaped areas. 15.0 PROJECT DESIGN AND CONSTRUCTION MONITORING We are available to provide additional geotechnical consultation as the project design develops and possibly changes from that upon which this report is based. We recommend that AESI perform a geotechnical review of the plans prior to final design completion. In this way, our earthwork and foundation recommendations may be properly interpreted and implemented in the design. This review is not included in the current scope of work and budget. We are also available to provide geotechnical engineering and monitoring services during construction. The integrity of the new system depends on proper site preparation and construction procedures. In addition, engineering decisions may have to be made in the field in the event that variations in subsurface conditions become apparent. Construction monitoring Subsurface Exploration, Geologic Hazard, and SE 172nd 5• & 125th Ave. SE GSI Geotechnical Engineering Report Renton, Washington Design Recommendations services are not part of this current scope of work. If these services are desired, please let us know, and we will prepare a proposal. We have enjoyed working with you on this study and are confident that these recommendations will aid in the successful completion of your project. If you should have any questions, or require further assistance, please do not hesitate to call. Sincerely, ASSOCIATED EARTH SCIENCES, INC. Kirkland, Washington Joshua S. P. Greer, G.I.T. Staff Geologist Jeffrey P. Laub, L.G., L.E.G. Bruce L. Blyton, P.E. Senior Engineering Geologist Senior Principal Engineer Attachments:Figure 1:Vicinity Map Figure 2:Site and Exploration Plan Figure 3:Site Aerial and Topography Appendix A: Exploration Logs Appendix B: Laboratory Testing Results March 23, 2020 ASSOCIATED EARTH SCIENCES, INC. JG/Id - 20190100H001-2 Page 16 KING COUNTY KENT RENTON &RS\ULJOW 1MWLRQMO *HRJUMSOLF 6RFLHW\ LFXNHG .LQJ &RXQW\ WO $ Y H 6 ( 6( WO 6W 6( QG 6W VW $ Y H 6 ( 6(W O3OQG $ Y H 6 ( WO $ Y H 6 ( UG $ Y H 6 ( m NOTE: BLACK AND WHITE REPRODUCTION OF THIS COLOR ORIGINAL MAY REDUCE ITS EFFECTIVENESS AND LEAD TO INCORRECT INTERPRETATION VICINITY MAP PROJ NO. DATE: FIGURE: \\k i r k f i l e 2 \ G I S \ G I S _ P r o j e c t s \ a a Y 2 0 1 9 \ V M \ 1 9 0 1 0 0 H 0 0 1 F 1 V M _ S E 1 7 2 n d . a p r x !( ¥ ¥ ¥ ¬«515 ¬« ¬« ¬« SITE 120190100H0012/20 0 20001000 FEET DATA SOURCES / REFERENCES: USGS: 7.5' SERIES TOPOGRAPHIC MAPS, ESRI/I-CUBED/NGS 2013 KING CO: STREETS, CITY LIMITS 1/19, PARCELS 4/19 LOCATIONS AND DISTANCES SHOWN ARE APPROXIMATE SE 172ND ST AND 125TH AVE SE GSI RENTON, WASHINGTON NOTES: 1. BASE MAP REFERENCE: DUANE HARTMAN AND ASSOCIATES, INC., CITY OF RENTON - SE 172ND ST STORM WATER IMPROVEMENTS TOPOGRAPHIC SURVEY, DHA 19-2901, SURVEYED 6/19 19 0 1 0 0 S E 1 7 2 n d \ 2 0 1 9 0 1 0 0 H 0 0 1 F 2 S - E . c d r SE 172ND ST AND 125TH AVE SE GSI RENTON, WASHINGTON SITE AND EXPLORATION PLAN PROJ NO.DATE:FIGURE: 20190100H001 2/20 2 BLACK AND WHITE REPRODUCTION OF THIS COLOR ORIGINAL MAY REDUCE ITS EFFECTIVENESS AND LEAD TO INCORRECT INTERPRETATION. a s s o c i a t e d e a r t h s c i e n c e s i n c o r p o r a t e d FEET 50 1000 N CONTOUR INTERVAL = 1’ LEGEND: EXPLORATION BORINGEB NOTE: LOCATION AND DISTANCES SHOWN ARE APPROXIMATE. EB-5 EB-3 EB-4 EB-2 EB-1 King County ± BLACK AND WHITE REPRODUCTION OF THIS COLOR ORIGINAL MAY REDUCE ITS EFFECTIVENESS AND LEAD TO INCORRECT INTERPRETATION G:\G I S _ P r o j e c t s \ a a Y 2 0 1 9 \ 1 9 0 1 0 0 S E 1 7 2 n d S t \ a p r x _ m x d \ 1 9 0 1 0 0 H 0 0 1 F 3 _ E S _ 1 7 2 n d S t . a p r x PROJ NO.DATE:FIGURE: 0 300 FEET DATA SOURCES / REFERENCES: PSLC: KING COUNTY 2016, GRID CELL SIZE IS 3'. DELIVERY 1 FLOWN 2/24/16 - 3/28/16 CONTOURS FROM LIDAR OSBORN CONSULTING, INC, PROJECT BOUNDARY, 172ND ST AND 125TH AVE GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT, 60% SUBMITTAL, 9/27/19 KING CO: STREETS, PARCELS 3/20 AERIAL PICTOMETRY INT. 2015 LOCATIONS AND DISTANCES SHOWN ARE APPROXIMATE 20190100H001 3/20 3 SITE AERIAL AND TOPOGRAPHY SE 172ND ST AND 125TH AVE SE GSI RENTON, WASHINGTON !( !( !( !( !( Kin g C o u n t y Ren t o n Re n t o n 424 414 42 6 4 2 2 434 428 420 41 2 41 6410 40 440 2 43 2 43 0 41 4 41 2 40 4 40 2 42 8 4 2 4 420 416 43 8 43 4 436 422 44 4 442 440 43 8 38 8 38 6 41 8 43 6 40 8 40 6 4 0 0 394 392 39 8 3 9 6 390 4 3 2 4 2 6 41 8 410 43 0 408 406 400 398 44 0 408 398 410 41 0 SE 172nd Ln SE175thSt 12 8 t h A v e S E SE 167th St 12 7 t h A v e S E 12 1 s t A v e S E SE174thLn11 9 t h P l S E 121st LnSE SE 168th St S E 1 7 0 t h P l SE 170th St SE 172nd St SE Pet rovitsky Rd 1 1 9 t h LnSE SE170t h Pl 12 6 t h P l S E 12 6 t h A v e S E S E 1 6 9 t h P l SE167th Pl 120thAveSE 120thLnSE 119thAveSE 1 2 2 n d L n SE 12 0 t h T e r S E SE 169th Pl SE 169th St 12 2 n d A v e S E 12 4 t h A v e S E 12 3 r d A v e S E EB-1 EB-2 EB-3 EB-4 EB-5 Pictometry International Corp. SITE !(EXPLORATION BORING PARCEL CONTOUR 10 FT CONTOUR 2 FT APPENDIX A Exploration Logs 13 22 32 16 18 22 33 50/5" 50/5" 50/4" Bottom of exploration boring at 20.3 feet Perched groundwater encountered at ~6 feet. Asphalt - 6 inches Crushed Rock - 4 inches Vashon Lodgement Till Dense, moist, light brownish gray, silty, fine SAND, trace to some gravel, trace cobbles; unsorted; limited recovery due to APS (SP). Vacuum truck excavated 0 to 4 feet. Drilled 4 to 21.5 feet. Very moist, gray, silty, fine SAND, trace gravel; unsorted; poor recovery (SM). Driller notes rock in the way. Very moist to wet, gray, silty, fine SAND, some gravel; unsorted (SM). Driller notes difficult drilling 10 to 20 feet. S-1 S-2 S-3 S-4 S-5 S-6 1 of 1 NAVD 88 JG2" OD Split Spoon Sampler (SPT) 3" OD Split Spoon Sampler (D & M) Wa t e r L e v e l Project Name JHSWater Level ()Approved by: 30 Blows/Foot Sa m p l e s Ground Surface Elevation (ft) Grab Sample Sy m b o l 6.25 40 Datum Hammer Weight/Drop Sampler Type (ST): S T Project Number 20 Renton, WA Date Start/Finish Co m p l e t i o n Location Sheet De p t h ( f t ) Exploration Number 20190100H001 2/4/20,2/4/20 Logged by: Shelby Tube Sample 140# / 30 Boretec / Track Rig We l l ~387 5 10 15 20 EB-1 Ring Sample No Recovery Gr a p h i c 10 Ot h e r T e s t s Hole Diameter (in) DESCRIPTION Driller/Equipment Bl o w s / 6 " Exploration Boring Water Level at time of drilling (ATD) SE 172nd St and 125th Ave SE GSI M - Moisture AE S I B O R 2 0 1 9 0 1 0 0 H 0 0 1 . G P J F e b r u a r y 2 5 , 2 0 2 0 54 4040 5050/5" 5050/5" 5050/4" 6 7 9 6 4 5 2 3 5 Bottom of exploration boring at 11.5 feet No groundwater encountered. Asphalt - 6 inches Crushed Rock - 4 inches Fill Medium dense, moist, dark brown, sandy, GRAVEL, some silt, trace organics; unsorted (GP-GM). Vacuum truck excavated 0 to 4 feet. Drilled 4 to 11.5 feet. Upper 4 inches: brown, fine to medium, SAND, some silt (SP-SM). Vashon Ice Contact Deposits Lower 8 inches: moist, gray with mottled orange oxidation, silty, fine SAND, trace gravel; massive (SM). Very moist, gray, fine sandy, SILT, trace gravel, trace coarse sand dropstones; massive (ML). S-1 S-2 S-3 S-4 1 of 1 NAVD 88 JG2" OD Split Spoon Sampler (SPT) 3" OD Split Spoon Sampler (D & M) Wa t e r L e v e l Project Name JHSWater Level ()Approved by: 30 Blows/Foot Sa m p l e s Ground Surface Elevation (ft) Grab Sample Sy m b o l 6.25 40 Datum Hammer Weight/Drop Sampler Type (ST): S T Project Number 20 Renton, WA Date Start/Finish Co m p l e t i o n Location Sheet De p t h ( f t ) Exploration Number 20190100H001 2/4/20,2/4/20 Logged by: Shelby Tube Sample 140# / 30 Boretec / Track Rig We l l ~389 5 10 15 20 EB-2 Ring Sample No Recovery Gr a p h i c 10 Ot h e r T e s t s Hole Diameter (in) DESCRIPTION Driller/Equipment Bl o w s / 6 " Exploration Boring Water Level at time of drilling (ATD) SE 172nd St and 125th Ave SE GSI M - Moisture AE S I B O R 2 0 1 9 0 1 0 0 H 0 0 1 . G P J F e b r u a r y 2 5 , 2 0 2 0 1616 99 1818 8 10 12 44 5/4" 50/5" Bottom of exploration boring at 10.4 feet Perched groundwater encountered at ~5 feet. Asphalt - 4 inches Crushed Rock - 4 inches Fill Medium dense, moist, dark brown, sandy, GRAVEL, some silt, trace fine organics; unsorted (GP-GM). Vashon Lodgement Till Vacuum truck excavated 0 to 4 feet. Drilled 4 to 10.4 feet. Very moist, light brownish gray, silty, fine SAND, trace gravel; unsorted (SM). S-1 S-2 S-3 S-4 1 of 1 NAVD 88 JG2" OD Split Spoon Sampler (SPT) 3" OD Split Spoon Sampler (D & M) Wa t e r L e v e l Project Name JHSWater Level ()Approved by: 30 Blows/Foot Sa m p l e s Ground Surface Elevation (ft) Grab Sample Sy m b o l 6.25 40 Datum Hammer Weight/Drop Sampler Type (ST): S T Project Number 20 Renton, WA Date Start/Finish Co m p l e t i o n Location Sheet De p t h ( f t ) Exploration Number 20190100H001 2/4/20,2/4/20 Logged by: Shelby Tube Sample 140# / 30 Boretec / Track Rig We l l ~395 5 10 15 20 EB-3 Ring Sample No Recovery Gr a p h i c 10 Ot h e r T e s t s Hole Diameter (in) DESCRIPTION Driller/Equipment Bl o w s / 6 " Exploration Boring Water Level at time of drilling (ATD) SE 172nd St and 125th Ave SE GSI M - Moisture AE S I B O R 2 0 1 9 0 1 0 0 H 0 0 1 . G P J F e b r u a r y 2 5 , 2 0 2 0 2222 505/4" 5050/5" 13 19 18 9 17 20 14 21 33 Bottom of exploration boring at 11.5 feet Perched groundwater encountered at ~5 to 6 feet. Asphalt - 4 inches Crushed Rock - 4 inches Fill Medium dense, moist dark brown, sandy, GRAVEL, some silt, trace fine organics; unsorted (GP-GM). Vashon Lodgement Till Vacuum truck excavated 0 to 4 feet. Drilled 4 to 11.5 feet. Poor recovery due to rock, interpreted as Lodgement Till due to blowcounts and consistent drill action with deeper samples. Moist to very moist, light brownish gray, silty, fine SAND, some gravel; unsorted (SM). S-1 S-2 S-3 S-4 1 of 1 NAVD 88 JG2" OD Split Spoon Sampler (SPT) 3" OD Split Spoon Sampler (D & M) Wa t e r L e v e l Project Name JHSWater Level ()Approved by: 30 Blows/Foot Sa m p l e s Ground Surface Elevation (ft) Grab Sample Sy m b o l 6.25 40 Datum Hammer Weight/Drop Sampler Type (ST): S T Project Number 20 Renton, WA Date Start/Finish Co m p l e t i o n Location Sheet De p t h ( f t ) Exploration Number 20190100H001 2/4/20,2/4/20 Logged by: Shelby Tube Sample 140# / 30 Boretec / Track Rig We l l ~402 5 10 15 20 EB-4 Ring Sample No Recovery Gr a p h i c 10 Ot h e r T e s t s Hole Diameter (in) DESCRIPTION Driller/Equipment Bl o w s / 6 " Exploration Boring Water Level at time of drilling (ATD) SE 172nd St and 125th Ave SE GSI M - Moisture AE S I B O R 2 0 1 9 0 1 0 0 H 0 0 1 . G P J F e b r u a r y 2 5 , 2 0 2 0 3737 3737 54 10 16 16 50/6" 50/4" Bottom of exploration boring at 10.3 feet Groundwater encountered at 4 feet. Asphalt - 4 inches Crushed Rock - 4 inches Vashon Lodgement Till Dense, moist, light brownish gray, silty, fine SAND, some gravel; unsorted (SM). Water present post Vacuum truck excavation at 4 feet. Vacuum truck excavated 0 to 4 feet. Drilled 4 to 10.3 feet. Moist to very moist, light brownish gray, silty, fine SAND, trace gravel; unsorted (SM). Poor recovery due to frequent gravel. S-1 S-2 S-3 S-4 1 of 1 NAVD 88 JG2" OD Split Spoon Sampler (SPT) 3" OD Split Spoon Sampler (D & M) Wa t e r L e v e l Project Name JHSWater Level ()Approved by: 30 Blows/Foot Sa m p l e s Ground Surface Elevation (ft) Grab Sample Sy m b o l 6.25 40 Datum Hammer Weight/Drop Sampler Type (ST): S T Project Number 20 Renton, WA Date Start/Finish Co m p l e t i o n Location Sheet De p t h ( f t ) Exploration Number 20190100H001 2/4/20,2/4/20 Logged by: Shelby Tube Sample 140# / 30 Boretec / Track Rig We l l ~403 5 10 15 20 EB-5 Ring Sample No Recovery Gr a p h i c 10 Ot h e r T e s t s Hole Diameter (in) DESCRIPTION Driller/Equipment Bl o w s / 6 " Exploration Boring Water Level at time of drilling (ATD) SE 172nd St and 125th Ave SE GSI M - Moisture AE S I B O R 2 0 1 9 0 1 0 0 H 0 0 1 . G P J F e b r u a r y 2 5 , 2 0 2 0 3232 5050/6" 5050/4" APPENDIX B Laboratory Testing Results Particle Size Distribution Report PE R C E N T F I N E R 0 10 20 30 40 50 60 70 80 90 100 GRAIN SIZE - mm. 0.0010.010.1110100 % +3"Coarse % Gravel Fine Coarse Medium % Sand Fine Silt % Fines Clay 0.0 0.0 6.3 3.8 14.2 40.8 34.9 6 i n . 3 i n . 2 i n . 1½ i n . 1 i n . ¾ i n . ½ i n . 3/ 8 i n . #4 #1 0 #2 0 #3 0 #4 0 #6 0 #1 0 0 #1 4 0 #2 0 0 TEST RESULTS Opening Percent Spec.*Pass? Size Finer (Percent)(X=Fail) Material Description Atterberg Limits (ASTM D 4318) Classification Coefficients Date Received:Date Tested: Tested By: Checked By: Title: Date Sampled:Location: Onsite Sample Number: EB-1 Depth: -7.5' Client: Project: Project No:Figure Very Silty SAND Some Gravel 3/4" 3/8" #4 #8 #10 #20 #40 #60 #100 #200 #270 100.0 97.3 93.7 90.6 89.9 86.0 75.7 55.7 44.7 34.9 32.0 np nv SM A-2-4(0) 2.0444 0.7312 0.2823 0.2016 2-14-20 2-14-20 MS JL 2-4-20 Osborn Consulting Inc 125Ave SE & 172nd St. Se. GSI 190100 H001 PL=LL=PI= USCS (D 2487)=AASHTO (M 145)= D90=D85=D60= D50=D30=D15= D10=Cu=Cc= Remarks *(no specification provided) Particle Size Distribution Report PE R C E N T F I N E R 0 10 20 30 40 50 60 70 80 90 100 GRAIN SIZE - mm. 0.0010.010.1110100 % +3"Coarse % Gravel Fine Coarse Medium % Sand Fine Silt % Fines Clay 0.0 0.0 7.5 4.8 16.7 47.3 23.7 6 i n . 3 i n . 2 i n . 1½ i n . 1 i n . ¾ i n . ½ i n . 3/ 8 i n . #4 #1 0 #2 0 #3 0 #4 0 #6 0 #1 0 0 #1 4 0 #2 0 0 TEST RESULTS Opening Percent Spec.*Pass? Size Finer (Percent)(X=Fail) Material Description Atterberg Limits (ASTM D 4318) Classification Coefficients Date Received:Date Tested: Tested By: Checked By: Title: Date Sampled:Location: Onsite Sample Number: EB-3 Depth: -5' Client: Project: Project No:Figure Silty SAND Some Gravel 3/4" 3/8" #4 #8 #10 #20 #40 #60 #100 #200 #270 100.0 95.9 92.5 88.8 87.7 81.1 71.0 52.4 37.8 23.7 20.1 np nv SM A-2-4(0) 2.9024 1.3856 0.3080 0.2330 0.1074 2-14-20 2-14-20 MS JL 2-4-20 Osborn Consulting Inc 125Ave SE & 172nd St. Se. GSI 190100 H001 PL=LL=PI= USCS (D 2487)=AASHTO (M 145)= D90=D85=D60= D50=D30=D15= D10=Cu=Cc= Remarks *(no specification provided) Particle Size Distribution Report PE R C E N T F I N E R 0 10 20 30 40 50 60 70 80 90 100 GRAIN SIZE - mm. 0.0010.010.1110100 % +3"Coarse % Gravel Fine Coarse Medium % Sand Fine Silt % Fines Clay 0.0 3.3 8.7 5.3 15.7 38.5 28.5 6 i n . 3 i n . 2 i n . 1½ i n . 1 i n . ¾ i n . ½ i n . 3/ 8 i n . #4 #1 0 #2 0 #3 0 #4 0 #6 0 #1 0 0 #1 4 0 #2 0 0 TEST RESULTS Opening Percent Spec.*Pass? Size Finer (Percent)(X=Fail) Material Description Atterberg Limits (ASTM D 4318) Classification Coefficients Date Received:Date Tested: Tested By: Checked By: Title: Date Sampled:Location: Onsite Sample Number: EB-4 Depth: -7.5' Client: Project: Project No:Figure Silty SAND Some Gravel 1" 3/4" 3/8" #4 #8 #10 #20 #40 #60 #100 #200 #270 100.0 96.7 94.4 88.0 83.7 82.7 77.4 67.0 48.7 38.0 28.5 25.6 np nv SM A-2-4(0) 5.8272 2.9680 0.3448 0.2609 0.0862 2-14-20 2-14-20 MS JL 2-4-20 Osborn Consulting Inc 125Ave SE & 172nd St. Se. GSI 190100 H001 PL=LL=PI= USCS (D 2487)=AASHTO (M 145)= D90=D85=D60= D50=D30=D15= D10=Cu=Cc= Remarks *(no specification provided) Particle Size Distribution Report PE R C E N T F I N E R 0 10 20 30 40 50 60 70 80 90 100 GRAIN SIZE - mm. 0.0010.010.1110100 % +3"Coarse % Gravel Fine Coarse Medium % Sand Fine Silt % Fines Clay 0.0 4.2 13.9 8.0 14.6 28.0 31.3 6 i n . 3 i n . 2 i n . 1½ i n . 1 i n . ¾ i n . ½ i n . 3/ 8 i n . #4 #1 0 #2 0 #3 0 #4 0 #6 0 #1 0 0 #1 4 0 #2 0 0 TEST RESULTS Opening Percent Spec.*Pass? Size Finer (Percent)(X=Fail) Material Description Atterberg Limits (ASTM D 4318) Classification Coefficients Date Received:Date Tested: Tested By: Checked By: Title: Date Sampled:Location: Onsite Sample Number: EB-5 Depth: -2' Client: Project: Project No:Figure Very Silty Gravelly SAND 1" 3/4" 3/8" #4 #8 #10 #20 #40 #60 #100 #200 #270 100.0 95.8 89.9 81.9 75.2 73.9 68.2 59.3 48.5 39.0 31.3 29.7 np nv SM A-2-4(0) 9.5979 6.1422 0.4425 0.2680 0.0577 2-14-20 2-14-20 MS JL 2-4-20 Osborn Consulting Inc 125Ave SE & 172nd St. Se. GSI 190100 H001 PL=LL=PI= USCS (D 2487)=AASHTO (M 145)= D90=D85=D60= D50=D30=D15= D10=Cu=Cc= Remarks *(no specification provided) OSBORN C ONSULTING, I NC. B ELLEVUE • S EATTLE • SPOKANE Construction Stormwater General Permit (CSWGP) DRAFT Stormwater Pollution Prevention Plan (SWPPP) for City of Renton SE 172nd St and 125th Ave SE GSI Project Prepared for: The Washington State Department of Ecology Northwest Regional Office Permittee / Owner Developer Operator / Contractor City of Renton City of Renton TBD City of Renton, Washington Certified Erosion and Sediment Control Lead (CESCL) Name Organization Contact Phone Number TBD TBD TBD SWPPP Prepared By Name Organization Contact Phone Number Chang Liu Osborn Consulting, Inc. (425) 451-4009 SWPPP Preparation Date June 10, 2021 Project Construction Dates Activity / Phase Start Date End Date TBD TBD TBD CITY OF RENTON SE 172ND STREET AND 125TH AVENUE SE GSI PROJECT ii OSBORN C ONSULTING, I NC. B ELLEVUE • S EATTLE • SPOKANE Table of Contents 1 Project Information ................................................................................................................................ 1 1.1 Existing Site Conditions ................................................................................................................. 1 1.2 Proposed Construction Activities .................................................................................................. 2 1.2.1 Construction Phasing ............................................................................................................ 2 1.2.2 Construction Schedule .......................................................................................................... 2 2 Construction Stormwater Best Management Practices (BMPs) ........................................................... 1 2.1 Element 1: Preserve Vegetation/Mark Clearing Limits ................................................................. 1 2.2 Element 2: Establish Construction Access .................................................................................... 2 2.3 Element 3: Control Flow Rates ...................................................................................................... 2 2.4 Element 4: Install Sediment Controls ............................................................................................ 2 2.5 Element 5: Stabilize Soils .............................................................................................................. 3 2.6 Element 6: Protect Slopes ............................................................................................................. 3 2.7 Element 7: Protect Drain Inlets ..................................................................................................... 4 2.8 Element 8: Stabilize Channels and Outlets ................................................................................... 4 2.9 Element 9: Control Pollutants ....................................................................................................... 4 2.10 Element 10: Control De-watering ................................................................................................. 4 2.11 Element 11: Maintain BMPs ......................................................................................................... 4 2.12 Element 12: Manage the Project .................................................................................................. 5 2.13 Element 13: Protect Low Impact Development (LID) BMPs ......................................................... 6 3 Pollution Prevention Team .................................................................................................................... 7 4 Monitoring and Sampling Requirements ............................................................................................... 8 4.1 Site Inspection ............................................................................................................................... 8 4.2 Stormwater Quality Sampling ....................................................................................................... 8 4.2.1 Turbidity Sampling ................................................................................................................ 8 4.2.2 pH Sampling .......................................................................................................................... 9 5 Discharges to 303(d) or Total Maximum Daily Load (TMDL) Waterbodies ........................................ 10 5.1 303(d) Listed Waterbodies .......................................................................................................... 10 5.2 TMDL Waterbodies ..................................................................................................................... 10 6 Reporting and Record Keeping ........................................................................................................... 11 6.1 Record Keeping ........................................................................................................................... 11 6.1.1 Site Log Book ....................................................................................................................... 11 CITY OF RENTON SE 172ND STREET AND 125TH AVENUE SE GSI PROJECT iii OSBORN C ONSULTING, I NC. B ELLEVUE • S EATTLE • SPOKANE 6.1.2 Records Retention ............................................................................................................... 11 6.1.3 Updating the SWPPP ........................................................................................................... 11 6.2 Reporting..................................................................................................................................... 11 6.2.1 Discharge Monitoring reports ............................................................................................. 11 6.2.2 Notification of Noncompliance 12 Appendices Appendix A – Site Map Appendix B – Correspondence Appendix C – Site Inspection Form Appendix D – Construction Stormwater General Permit (CSWGP) Appendix E – Contaminated Site Information – As Needed Appendix F – Engineering Calculations – As Needed Appendix G – Geotechnical Report – Under Separate Cover CITY OF RENTON SE 172ND STREET AND 125TH AVENUE SE GSI PROJECT iv OSBORN C ONSULTING, I NC. B ELLEVUE • S EATTLE • SPOKANE List of Acronyms and Abbreviations Acronym / Abbreviation Explanation 303(d) Section of the Clean Water Act pertaining to Impaired Waterbodies BMP(s) Best Management Practice(s) CESCL Certified Erosion and Sediment Control Lead CO2 Carbon Dioxide CMP Corrugated Metal Pipe CSWGP Construction Stormwater General Permit CWA Clean Water Act DMR Discharge Monitoring Report DO Dissolved Oxygen DOE Washington State Department of Ecology EPA United States Environmental Protection Agency ERTS Environmental Report Tracking System ESC Erosion and Sediment Control GULD General Use Level Designation NPDES National Pollutant Discharge Elimination System NTU Nephelometric Turbidity Units NWRO Northwest Regional Office of the Department of Ecology pH Power of Hydrogen RCW Revised Code of Washington SPCC Spill Prevention, Control, and Countermeasure su Standard Units SWMMWW Stormwater Management Manual for Western Washington SWPPP Stormwater Pollution Prevention Plan TESC Temporary Erosion and Sediment Control TMDL Total Maximum Daily Load WAC Washington Administrative Code WDFW Washington Department of Fish and Wildlife WSDOT WWHM Washington Department of Transportation Western Washington Hydrology Model 1 OSBORN C ONSULTING, I NC. B ELLEVUE • S EATTLE • SPOKANE 1. PROJECT INFORMATION Project/Site Name: SE 172ND STREET AND 125TH AVENUE SE GSI PROJECT Street/Location: SE 172nd Street and 125th Ave SE City: Renton State: Washington Zip code: 98058 Receiving waterbody: Big Soos Creek This Stormwater Pollution Prevention Plan (SWPPP) documents the sediment control and water quality measures to be implemented during construction of the SE 172nd Street and 125th Ave SE GSI project, to prevent sediment deposition into the Big Soos Creek as well as documenting proper implementation of the temporary stream bypass to divert flows around the site during construction. The 13 elements of the SWPPP, according to the Department of Ecology (DOE) and the associated best management practices (BMPs) are documented in the following sections. A pre-construction meeting is required to address these elements prior to beginning construction of the project. The SWPPP is an active document that reflects the current conditions and changes throughout the life of the project. Changes, formal or informal, should be documented in Appendix B. The SWPPP should be updated when the Certified Erosion Control Lead (CESCL) has noted a deficiency in BMPs or deviation from original design. 1.1 EXISTING SITE CONDITIONS The project limits are approximately half a block (600 ft) north of SE 172nd St, on 122nd Ave SE, 123rd Ave SE, 124th Ave SE, and 125th Ave SE (hereby referred to in this report as the north-south streets) and approximately two blocks (1,400 ft) along SE 172nd St between 122nd Ave SE and 127th Ave SE. Stormwater is collected and conveyed from parcels and ROW along SE 172nd St and west of 122nd Ave SE into the existing storm system south of SE 172nd St via 12-inch concrete pipes up to the intersection at 125th Ave SE. Stormwater from the north-south streets and offsite parcel areas is collected and conveyed east through private parcels to 125th Ave SE through existing 18-inch concrete pipes, and then south to connect to an existing catch basin at the intersection of 125th Ave SE and SE 172nd St that is approximately 9 ft deep. Stormwater is then conveyed east in 24-inch concrete pipes along SE 172nd St to the intersection on 127th Ave SE, where a 42-inch concrete pipe conveys runoff from east of SE 172nd St and north of 127th Ave SE south to an existing wetland. The existing wetland is located south of the intersection of 127th Ave SE and SE 172nd St. There are known locations of flooding at the intersection of 127th Ave SE and SE 172nd St, and improvements to existing conveyance system capacities is proposed in addition to providing water quality retrofit benefits within the project limits. The project discharges to “Wetland A”, which is a Category II depressional wetland with a habitat score of 6, buffer width of 100-feet and setback of 15-feet. There is also a “Wetland B” near the project area, which is a Category III wetland with a habitat score of 4, buffer width of 50-feet and setback of 15-feet, which is not impacted by the project. See Appendix G in Drainage Report for the wetland delineation report. CITY OF RENTON SE 172ND STREET AND 125TH AVENUE SE GSI PROJECT 2 OSBORN C ONSULTING, I NC. B ELLEVUE • S EATTLE • SPOKANE Table 1 presents a summary of suspected and/or known contaminants associated with the construction of the project. TABLE 1 | SUMMARY OF PROBABLE SITE POLLUTANT CONSTITUENTS Constituent (pollutant) Location Depth Concentration Vehicle fuels and lubricants 122nd Ave SE, 123rd Ave SE, 124th Ave SE, 125th Ave SE and SE 172nd Ave Surface N/A 1.2 PROPOSED CONSTRUCTION ACTIVITIES The project proposes to provide 20-foot driving lanes (10-foot on either side) of the existing roadway. The project will provide 6 feet of parking on at least one side of all streets. A 6-foot landscape buffer is proposed between the roadway and the proposed 5-foot sidewalk on one side of the street of each of the streets within the project limits. The project also proposes to collect flows from 122nd, 123rd, 124th and 125th Avenue SE into a proposed conveyance system along SE 172nd Ave. Proposed stormwater facilities along the north-south streets and SE 172nd Ave have been designed to collect runoff from a minimum of 2 acres of PGHS within the project ROW via connections to proposed water quality treatment systems before discharging to the wetland, south of SE 172nd St. The project will include site preparation and installation of temporary erosion and sediment control (TESC) measures, clearing and grubbing, excavation and grading, implementation of the storm water pollution prevention plan, and site restoration following completion of construction. Final stabilization will include restoring all disturbed areas within the project site. 1.2.1 CONSTRUCTION PHASING Placeholder for final SWPPP based on more detailed phasing to be provided by Contractor. 1.2.2 CONSTRUCTION SCHEDULE Construction is anticipated to begin in Spring 2023 and be completed by late-Summer 2023. 1 OSBORN C ONSULTING, I NC. B ELLEVUE • S EATTLE • SPOKANE 2 CONSTRUCTION STORMWATER BEST MANAGEMENT PRACTICES (BMPS) To control on-site sediment, the following BMPs will be implemented prior to the beginning of construction activities: • High Visibility Silt Fence • Inlet Protection • Tree Protection/High Visibility Fence These BMPs will be maintained throughout the project and will be inspected at regular intervals and following significant storm events as required by the City of Renton and DOE rules and regulations. The contractor will provide a maintenance and inspection plan that includes identification and contact information for the ESC project lead and backup contacts. Although every attempt has been made to identify appropriate BMPs at specific locations throughout the project, situations will arise that require additional BMPs to be implemented. Therefore, erosion prevention and sediment control materials are to be kept on the project site at all times to be used for emergency situations, such as unexpected heavy summer rains. DOE’s BMP C150 lists recommended materials and quantities to be kept on site. The construction manager shall verify that materials on hand are in place prior to construction and regularly inventoried during construction. The following sections outline the 13 elements required for a SWPPP according to the DOE Stormwater Management Manual for Western Washington (SWMMWW) and the corresponding selected BMPs to be installed at the project site during construction. All identified BMPs and BMPs shown on the plans are minimum requirements based on the known conditions. Construction sites have ever changing conditions; as a result, additional BMPs may have to be provided as deemed necessary by the CESCL. 2.1 ELEMENT 1: PRESERVE VEGETATION/MARK CLEARING LIMITS Prior to beginning land disturbing activities, including clearing and grading, clearly mark all clearing limits, sensitive areas and their buffers, and trees that are to be preserved within the construction area. These shall be clearly marked, both in the field and on the plans, to prevent damage and offsite impacts. Plastic, metal, or stake wire fence may be used to mark the clearing limits. The duff layer, native top soil, and natural vegetation shall be retained in an undisturbed state to the maximum extent practicable. If it is not practicable to retain the duff layer in place, it should be stockpiled on-site, covered to prevent erosion, and replaced immediately upon completion of the ground disturbing activities. Special consideration will be given to construction activities immediately adjacent to sensitive areas. Stormwater conveyances and drainage ways will be given special consideration on this project so that all construction personnel understand the requirement to prevent the degradation of water quality. Selected BMPs for Element 1: • BMP C101: Preserving Natural Vegetation • BMP C102: Buffer Zones • BMP C233: Silt Fence CITY OF RENTON SE 172ND STREET AND 125TH AVENUE SE GSI PROJECT 2 OSBORN C ONSULTING, I NC. B ELLEVUE • S EATTLE • SPOKANE 2.2 ELEMENT 2: ESTABLISH CONSTRUCTION ACCESS Construction vehicles entering and exiting the project site will use only identified and approved access points. Construction access points shall be determined by the contractor before the start of the project. Approved construction access points will be marked on plans and in the field (as necessary) to prevent unauthorized access and to limit further disturbance of environmental resources and surrounding neighborhoods. Sediment drag-out onto the street will be limited by effective implementation of construction road and entrance stabilization measures to be installed per City of Renton or WSDOT Standard Plans. The construction entrance will be stabilized with quarry spalls to reduce the amount of sediment transported onto paved roads by vehicles or equipment. Only essential equipment will be allowed in the disturbed areas and all equipment will be cleaned of loose sediment prior to moving offsite. Equipment will be cleaned using brush and/or broom and, if necessary, wheel washing stations. The construction entrance will be maintained as needed to prevent offsite transport of sediment. If sediment is tracked off site, public roads shall be cleared thoroughly at the end of each workday, or more frequently during wet weather, if necessary, to prevent sediment from entering waters of the state. Sediment shall be removed from roads by manual shoveling and/or dry sweeping and the collected sediments shall be transported to a controlled sediment disposal area. Use of water to wash down surfaces will be prohibited unless specifically approved by the ESC Lead to assure turbid water is appropriately managed and treated prior to discharge. Street wash wastewater shall be controlled by pumping back on-site, or otherwise be prevented from discharging into systems tributary to state surface waters. The contractor shall maintain all public roadways with street sweeping as necessary to remove sediment. Selected BMPs for Element 2: • BMP C105: Stabilized Construction Entrance • BMP C106: Wheel Wash • BMP C107: Construction Road/Parking Area Stabilization 2.3 ELEMENT 3: CONTROL FLOW RATES To protect properties and waterways downstream of the project site from erosion and the associated discharge of turbid waters, stormwater discharges from the site will be controlled. No stormwater infiltration or detention BMPs, permanent or temporary, shall be constructed at the project site. Selected BMPs for Element 3: • BMP233: Silt Fence • BMP C235: Straw Wattles 2.4 ELEMENT 4: INSTALL SEDIMENT CONTROLS To minimize the discharge of pollutants from the project, effective erosion and sediment control measures are to be installed and maintained at the site. The depth to groundwater was observed at a depth of 4 to 6 feet below the surface, except at Boring EB-2 along 125th Street SE where groundwater was not CITY OF RENTON SE 172ND STREET AND 125TH AVENUE SE GSI PROJECT 3 OSBORN C ONSULTING, I NC. B ELLEVUE • S EATTLE • SPOKANE observed to a depth of 11.5 feet. Due to the shallow groundwater table and small project limits, infiltration BMPs are not feasible for the project. Selected BMPs for Element 4: • BMP C233: Silt Fence • BMP C235: Straw Wattles To avoid any potential sediment control issues, the project CESCL will immediately implement alternative BMPs at the first sign that any of the existing BMPs are ineffective or failing. 2.5 ELEMENT 5: STABILIZE SOILS Exposed and unworked soils will be protected with temporary seeding and mulching as well as plastic sheeting over gravel or stockpiles over weekends or when rain is a possibility. Per DOE guidelines, summarized in Table 2, no soils shall remain exposed and unworked for more than 7 days in the dry season and more than 2 days during the wet season. The project is expected to be completed during the dry season of 2023. TABLE 2 | SOIL STABILIZATION REQUIREMENTS FOR THE WET AND DRY SEASON WEST OF THE CASCADE MOUNTAIN CREST Season Dates Number of Days Soils Can be Left Exposed During the Dry Season May 1 – September 30 7 days During the Wet Season October 1 – April 30 2 days Soils must be stabilized at the end of the shift before a holiday or a weekend if needed based on the weather forecast. Selected BMPs for Element 5: • BMP C120: Temporary and Permanent Seeding • BMP C121: Mulching • BMP C123: Plastic Covering • BMP C125: Topsoiling/Composting • BMP C140: Dust Control 2.6 ELEMENT 6: PROTECT SLOPES Steep slopes are not present at the project site. Slopes from adjacent parcels shall be protected. Selected BMPs for Element 6: • BMP C120: Temporary and Permanent Seeding • BMP C121: Mulching CITY OF RENTON SE 172ND STREET AND 125TH AVENUE SE GSI PROJECT 4 OSBORN C ONSULTING, I NC. B ELLEVUE • S EATTLE • SPOKANE 2.7 ELEMENT 7: PROTECT DRAIN INLETS Inlet protection will be installed in the existing drain inlets within the work area prior to beginning any clearing work. Selected BMPs for Element 7: • BMP C220: Inlet Protection 2.8 ELEMENT 8: STABILIZE CHANNELS AND OUTLETS There are no channels and outlets to be stabilized at the project site. 2.9 ELEMENT 9: CONTROL POLLUTANTS Maintenance, fueling, and/or repair of heavy equipment and vehicles is the only pollutant that is expected to occur onsite. The contractor will be required to provide a final list of chemicals, fuels or oils that will be on site. In addition, a security and containment plan will need to be approved and implemented prior to bringing any chemicals, fuels or oils onto the site. No pH-modifying sources are expected to be on-site during construction activities. 2.10 ELEMENT 10: CONTROL DE-WATERING All sediment-laden water is required to be properly disposed of to prevent discharge to Waters of the State. Proper disposal methods are summarized in Table 3. TABLE 3 | DEWATERING BMPS Infiltration X Transport off-site in a vehicle (vacuum truck for legal disposal) DOE-approved on-site chemical treatment or other suitable treatment technologies Sanitary or combined sewer discharge with local sewer district approval (last resort) X Use of sedimentation bag with discharge to ditch or swale (small volumes of localized dewatering) The contractor will be required to provide a dewatering plan that includes turbidity sampling. Inspection and documentation will be completed at minimum intervals and after significant storms as required and defined by the State or EPA rules and regulations. The maintenance and inspection plan, to be provided by the contractor, will include identification, and contact information for the ESC project lead and backup contacts. The contractor will identify a responsible person and City staff will provide oversight. 2.11 ELEMENT 11: MAINTAIN BMPS All temporary and permanent Erosion and Sediment Control (ESC) BMPs shall be maintained and repaired as needed to ensure continued performance of their intended function. Maintenance and repair CITY OF RENTON SE 172ND STREET AND 125TH AVENUE SE GSI PROJECT 5 OSBORN C ONSULTING, I NC. B ELLEVUE • S EATTLE • SPOKANE shall be conducted in accordance with each particular BMP specification (see Volume II of the SWMMWW). Visual monitoring of all BMPs installed at the site will be conducted at least once every calendar week and within 24 hours of any stormwater or non-stormwater discharge from the site. If the site becomes inactive and is temporarily stabilized, the inspection frequency may be reduced to once every calendar month. All temporary ESC BMPs shall be removed within 30 days after final site stabilization is achieved or after the temporary BMPs are no longer needed. Trapped sediment shall be stabilized on-site or removed. Disturbed soil resulting from removal of either BMPs or vegetation shall be permanently stabilized. Additionally, protection must be provided for all BMPs installed for the permanent control of stormwater from sediment and compaction. BMPs that are to remain in place following completion of construction shall be examined and restored to full operating condition. If sediment enters these BMPs during construction, the sediment shall be removed, and the facility shall be returned to conditions specified in the construction documents. Selected BMPs for Element 11: • BMP C150: Materials on Hand • BMP C160: Certified Erosion and Sediment Control Lead 2.12 ELEMENT 12: MANAGE THE PROJECT The project will be managed based on the following principles: • Projects will be phased to the maximum extent practicable and seasonal work limitations will be taken into account. • Inspection and monitoring: o Inspection, maintenance and repair of all BMPs will occur as needed to ensure performance of their intended function. o Site inspections, monitoring, and sampling locations will be in accordance with the Construction Stormwater General Permit (CSWGP). o A CESCL shall be on-site or on-call at all times. • Maintain an updated SWPPP. o As site work progresses the SWPPP will be modified routinely to reflect changing site conditions. The SWPPP will be reviewed monthly to ensure the content is current. Applicable Management BMPs are identified in Table 4. CITY OF RENTON SE 172ND STREET AND 125TH AVENUE SE GSI PROJECT 6 OSBORN C ONSULTING, I NC. B ELLEVUE • S EATTLE • SPOKANE TABLE 4 | MANAGEMENT BMPS X Design the project to fit the existing topography, soils, and drainage patterns X Emphasize erosion control rather than sediment control X Minimize the extent and duration of the area exposed X Keep runoff velocities low Retain sediment on-site X Thoroughly monitor site and maintain all ESC measures X Schedule major earthwork during the dry season Other (please describe) A template for a phased BMP implementation schedule is provided in Table 5. This form shall be updated and modified as the project progresses. TABLE 5 | BMP IMPLEMENTATION SCHEDULE Phase of Construction Project Stormwater BMPs Date Wet/Dry Season Site Preparation BMPs C103 & 233 [MM/DD/YYY] Dry [Insert construction activity] [Insert BMP] [MM/DD/YYY] [Insert season] 2.13 ELEMENT 13: PROTECT LOW IMPACT DEVELOPMENT (LID) BMPS Protect all LID BMPs including the proposed Filterra unit and Permeable Pavements from sedimentation though installation and maintenance of erosion and sediment control BMPs on portions of the site that drain into the LID BMPs. Restore the BMPs to their fully functioning condition if they accumulate sediment during construction. Restoring the BMP must include removal of sediment and any sediment-laden Bioretention soils, and replacing the removed soils with soils meeting the design specification. Selected BMPs for Element 13: • BMP C220: Inlet Protection • BMP C233: Silt Fence CITY OF RENTON SE 172ND STREET AND 125TH AVENUE SE GSI PROJECT 7 OSBORN C ONSULTING, I NC. B ELLEVUE • S EATTLE • SPOKANE 3 POLLUTION PREVENTION TEAM Table 6 is provided as a template for team member information and coordination as members are identified. TABLE 6 | TEAM INFORMATION Title Name(s) Phone Number Certified Erosion and Sediment Control Lead (CESCL) Provided by Contractor [TBD] [TBD] Resident Engineer [TBD] [TBD] Emergency DOE Contact [TBD] [TBD] Emergency Permittee/ Owner Contact [TBD] [TBD] Non-Emergency Owner Contact [TBD] [TBD] Monitoring Personnel [TBD] [TBD] DOE Regional Office Northwest Regional Office (425) 649-7000 CITY OF RENTON SE 172ND STREET AND 125TH AVENUE SE GSI PROJECT 8 OSBORN C ONSULTING, I NC. B ELLEVUE • S EATTLE • SPOKANE 4 MONITORING AND SAMPLING REQUIREMENTS Monitoring includes visual inspection, sampling for water quality parameters of concern, and documentation of the inspection and sampling findings in a site log book. A site log book will be maintained for all on-site construction activities and will include: • A record of the implementation of the SWPPP and other permit requirements • Site inspections • Stormwater sampling data A blank form is provided as a template in Appendix C. The site log book must be maintained on-site within reasonable access to the site and be made available upon request to DOE or the local jurisdiction. 4.1 SITE INSPECTION Site inspections will be conducted at least once every calendar week and within 24 hours following any discharge from the site. For sites that are temporarily stabilized and inactive, the required frequency is reduced to once per calendar month. The discharge point(s) are indicated on the Site Map (see Appendix A) and in accordance with the applicable requirements of the CSWGP. 4.2 STORMWATER QUALITY SAMPLING 4.2.1 TURBIDITY SAMPLING Requirements include calibrated turbidity meter or transparency tube to sample site discharges for compliance with the CSWGP. Sampling will be conducted at all discharge points at least once per calendar week. Method for sampling turbidity: TABLE 7 | TURBIDITY SAMPLING METHOD Turbidity Meter/Turbidimeter (required for disturbances 5 acres or greater in size) X Transparency Tube (option for disturbances less than 1 acre and up to 5 acres in size) The benchmark for turbidity value is 25 nephelometric turbidity units (NTU) and a transparency less than 33 centimeters. If the discharge’s turbidity is 26 to 249 NTU or the transparency is less than 33 cm but equal to or greater than 6 cm, the following steps will be conducted: 1. Review the SWPPP for compliance with Special Condition S9. Make appropriate revisions within 7 days of the date the discharge exceeded the benchmark. 2. Immediately begin the process to fully implement and maintain appropriate source control and/or treatment BMPs as soon as possible. Address the problems within 10 days of the date the discharge exceeded the benchmark. If installation of necessary treatment BMPs is not feasible within 10 days, DOE may approve additional time when the Permittee requests an extension within the initial 10-day response period. 3. Document BMP implementation and maintenance in the site logbook. CITY OF RENTON SE 172ND STREET AND 125TH AVENUE SE GSI PROJECT 9 OSBORN C ONSULTING, I NC. B ELLEVUE • S EATTLE • SPOKANE If the turbidity exceeds 250 NTU or the transparency is 6 cm or less at any time, the following steps will be conducted: 1. Telephone or submit an electronic report to the applicable DOE Region’s Environmental Report Tracking System (ERTS) within 24 hours. https://www.ecology.wa.gov/About-us/Get- involved/Report-an-environmental-issue • Northwest Region (King, Kitsap, Island, San Juan, Skagit, Snohomish, Whatcom): (425) 649-7000 2. Immediately begin the process to fully implement and maintain appropriate source control and/or treatment BMPs as soon as possible. Address the problems within 10 days of the date the discharge exceeded the benchmark. If installation of necessary treatment BMPs is not feasible within 10 days, DOE may approve additional time when the Permittee requests an extension within the initial 10-day response period. 3. Document BMP implementation and maintenance in the site logbook. 4. Continue to sample discharges daily until one of the following is true: • Turbidity is 25 NTU (or lower). • Transparency is 33 cm (or greater). • Compliance with the water quality limit for turbidity is achieved. o 1 - 5 NTU over background turbidity, if background is less than 50 NTU o 1% - 10% over background turbidity, if background is 50 NTU or greater • The discharge stops or is eliminated. 4.2.2 PH SAMPLING Monitoring for pH may be required for cast-in-place concrete work. CITY OF RENTON SE 172ND STREET AND 125TH AVENUE SE GSI PROJECT 10 OSBORN C ONSULTING, I NC. B ELLEVUE • S EATTLE • SPOKANE 5 DISCHARGES TO 303(D) OR TOTAL MAXIMUM DAILY LOAD (TMDL) WATERBODIES 5.1 303(D) LISTED WATERBODIES Ecology has classified the upstream of Big Soos Creek as a Category 4C water that is impaired by a non- pollutant. The Big Soos Creek is impaired by causes that cannot be addressed through a TMDL plan. Impairments in the creek include low water flow, stream channelization, and dams. CITY OF RENTON SE 172ND STREET AND 125TH AVENUE SE GSI PROJECT 11 OSBORN C ONSULTING, I NC. B ELLEVUE • S EATTLE • SPOKANE 6 REPORTING AND RECORD KEEPING 6.1 RECORD KEEPING 6.1.1 SITE LOG BOOK A site log book will be maintained for all on-site construction activities and will include: • A record of the implementation of the SWPPP and other permit requirements • Site inspections • Sample logs 6.1.2 RECORDS RETENTION Records will be retained during the life of the project and for a minimum of three (3) years following the termination of permit coverage in accordance with Special Condition S5.C of the CSWGP. Permit documentation to be retained on-site: • CSWGP • Permit Coverage Letter • SWPPP • Site Log Book Permit documentation will be provided within 14 days of receipt of a written request from DOE. A copy of the SWPPP or access to the SWPPP will be provided to the public when requested in writing in accordance with Special Condition S5.G.2.b of the CSWGP. 6.1.3 UPDATING THE SWPPP The SWPPP will be modified if: • Found ineffective in eliminating or significantly minimizing pollutants in stormwater discharges from the site. • There is a change in design, construction, operation, or maintenance at the construction site that has, or could have, a significant effect on the discharge of pollutants to waters of the State. The SWPPP will be modified within seven (7) days if inspection(s) or investigation(s) determine additional or modified BMPs are necessary for compliance. An updated timeline for BMP implementation will be prepared. 6.2 REPORTING 6.2.1 DISCHARGE MONITORING REPORTS Cumulative soil disturbance is one (1) acre or larger; therefore, Discharge Monitoring Reports (DMRs) will be submitted to Ecology monthly. If there was no discharge during a given monitoring period the DMR will be submitted as required reporting “No Discharge”. The DMR due date is fifteen (15) days following the end of each calendar month. DMRs will be reported online through Ecology WQWebDMR System. CITY OF RENTON SE 172ND STREET AND 125TH AVENUE SE GSI PROJECT 12 OSBORN C ONSULTING, I NC. B ELLEVUE • S EATTLE • SPOKANE https://ecology.wa.gov/Regulations-Permits/Guidance-technical-assistance/Water-quality-permits- guidance/WQWebPortal-guidance 6.2.2 NOTIFICATION OF NONCOMPLIANCE If any of the terms and conditions of the permit is not met, and the resulting noncompliance may cause a threat to human health or the environment, the following actions will be taken: 1. DOE will be notified within 24-hours of the failure to comply by calling the applicable Regional office ERTS phone number (Regional office numbers listed below). 2. Immediate action will be taken to prevent the discharge/pollution or otherwise stop or correct the noncompliance. If applicable, sampling and analysis of any noncompliance will be repeated immediately and the results submitted to DOE within five (5) days of becoming aware of the violation. 3. A detailed written report describing the noncompliance will be submitted to DOE within five (5) days, unless requested earlier by DOE. Anytime turbidity sampling indicates turbidity is 250 NTUs or greater, or water transparency is 6 cm or less, the DOE Regional office will be notified by phone within 24 hours of analysis as required by Special Condition S5.A of the CSWGP. • Northwest Region at (425) 649-7000 for Island, King, Kitsap, San Juan, Skagit, Snohomish, or Whatcom County Include the following information: 1. Your name and / Phone number 2. Permit number 3. City / County of project 4. Sample results 5. Date / Time of call 6. Date / Time of sample 7. Project name In accordance with Special Condition S4.D.5.b of the CSWGP, the DOE Regional office will be notified if chemical treatment other than CO2 sparging is planned for adjustment of high pH water. 1 OSBORN C ONSULTING, I NC. B ELLEVUE • S EATTLE • SPOKANE APPENDIX A – SITE MAP Place holder for final draft SWPPP – Appendix A SE 172nd STREET AND 125th AVENUE SE GREEN STORMWATER INFRASTRUCTURE PROJECT SWP-27-4037 PROJECT LOCATION MAP Project Outfall Location CITY OF RENTON SE 172ND STREET AND 125TH AVENUE SE GSI PROJECT 2 OSBORN C ONSULTING, I NC. B ELLEVUE • S EATTLE • SPOKANE APPENDIX B – CORRESPONDENCE Place holder for final draft CITY OF RENTON SE 172ND STREET AND 125TH AVENUE SE GSI PROJECT 3 OSBORN C ONSULTING, I NC. B ELLEVUE • S EATTLE • SPOKANE This storm water pollution prevention plan (SWPPP) should be revised and updated to address changes in site conditions, new or revised government regulations, and additional on-site storm water pollution controls. All revisions to the SWPPP must be documented on the SWPPP Revision Documentation Form, which should include the information shown below. The authorized facility representative who approves the SWPPP should be an individual at or near the top of the facility’s management organization, such as the president, vice president, construction manager, site supervisor, or environmental manager. The signature of this representative attests that the SWPPP revision information is true and accurate. All SWPPP revisions will either be drafted or approved by the City of Redmond. SWPPP Revision Documentation Form Number Date Author Company Representative Signature 0 1 2 3 4 5 6 7 8 9 10 CITY OF RENTON SE 172ND STREET AND 125TH AVENUE SE GSI PROJECT 4 OSBORN C ONSULTING, I NC. B ELLEVUE • S EATTLE • SPOKANE APPENDIX C – SITE INSPECTION FORM Construction Stormwater Site Inspection Form Page 1 Project Name Inspection Date Time Name of Certified Erosion Sediment Control Lead (CESCL) or qualified inspector if less than one acre Print Name: Approximate rainfall amount since the last inspection (in inches): Approximate rainfall amount in the last 24 hours (in inches): Current Weather Clear Cloudy Mist Rain Wind Fog A.Type of inspection:Weekly Post Storm Event Other B. Phase of Active Construction (check all that apply): Pre Construction/installation of erosion/sediment controls Clearing/Demo/Grading Infrastructure/storm/roads Concrete pours Vertical Construction/buildings Utilities Offsite improvements Site temporary stabilized Final stabilization Yes No Yes No Yes No r Yes No Yes No C.Questions: 1.Were all areas of construction and discharge points inspected? 2.Did you observe the presence of suspended sediment, turbidity, discoloration, or oil sheen 3.Was a water quality sample taken during inspection? 4.Was there a turbid discharge 250 NTU or greate to an infiltration facility? 5.If yes to #4 was it reported to Ecology? 6.Is pH sampling required? pH range required is 6.5 to 8.5.Yes No If answering yes to a discharge, describe the event. Include when, where, and why it happened; what action was taken, and when. *If answering yes to # 4 record NTU with continual sampling daily until turbidity is 25 NTU or less. Sampling Results: Date: Parameter Method (circle one) Result Other/Note NTU pH Turbidity tube, meter, laboratory pH Paper, kit, meter Construction Stormwater Site Inspection Form Page 2 D. Check the observed status of all items. Provide “Action Required “details and dates. Element # Inspection BMPs Inspected BMP needs maintenance BMP failed Action required (describe in section F) yes no n/a 1 Clearing Limits Before beginning land disturbing activities are all clearing limits, natural resource areas (streams, wetlands, buffers, trees) protected with barriers or similar BMPs? (high visibility recommended) 2 Construction Access Construction access is stabilized with quarry spalls or equivalent BMP to prevent sediment from being tracked onto roads? Sediment tracked onto the road way was cleaned thoroughly at the end of the day or more frequent as necessary. 3 Control Flow Rates Are flow control measures installed to control stormwater volumes and velocity during construction and do they protect downstream properties and waterways from erosion? If permanent infiltration ponds are used for flow control during construction, are they protected from siltation? 4 Sediment Controls All perimeter sediment controls (e.g. silt fence, wattles, compost socks, berms, etc.) installed, and maintained in accordance with the Stormwater Pollution Prevention Plan (SWPPP). Sediment control BMPs (sediment ponds, traps, filters etc.) have been constructed and functional as the first step of grading. Stormwater runoff from disturbed areas is directed to sediment removal BMP. 5 Stabilize Soils Have exposed un-worked soils been stabilized with effective BMP to prevent erosion and sediment deposition? Construction Stormwater Site Inspection Form Page 3 Element # Inspection BMPs Inspected BMP needs maintenance BMP failed Action required (describe in section F) yes no n/a 5 Stabilize Soils Cont. Are stockpiles stabilized from erosion, protected with sediment trapping measures and located away from drain inlet, waterways, and drainage channels? Have soils been stabilized at the end of the shift, before a holiday or weekend if needed based on the weather forecast? 6 Protect Slopes Has stormwater and ground water been diverted away from slopes and disturbed areas with interceptor dikes, pipes and or swales? Is off-site storm water managed separately from stormwater generated on the site? Is excavated material placed on uphill side of trenches consistent with safety and space considerations? Have check dams been placed at regular intervals within constructed channels that are cut down a slope? 7 Drain Inlets Storm drain inlets made operable during construction are protected. Are existing storm drains within the influence of the project protected? 8 Stabilize Channel and Outlets Have all on-site conveyance channels been designed, constructed and stabilized to prevent erosion from expected peak flows? Is stabilization, including armoring material, adequate to prevent erosion of outlets, adjacent stream banks, slopes and downstream conveyance systems? 9 Control Pollutants Are waste materials and demolition debris handled and disposed of to prevent contamination of stormwater? Has cover been provided for all chemicals, liquid products, petroleum products, and other material? Has secondary containment been provided capable of containing 110% of the volume? Were contaminated surfaces cleaned immediately after a spill incident? Were BMPs used to prevent contamination of stormwater by a pH modifying sources? Construction Stormwater Site Inspection Form Page 4 Element # Inspection BMPs Inspected BMP needs maintenance BMP failed Action required (describe in section F) yes no n/a 9 Cont. Wheel wash wastewater is handled and disposed of properly. 10 Control Dewatering Concrete washout in designated areas. No washout or excess concrete on the ground. Dewatering has been done to an approved source and in compliance with the SWPPP. Were there any clean non turbid dewatering discharges? 11 Maintain BMP Are all temporary and permanent erosion and sediment control BMPs maintained to perform as intended? 12 Manage the Project Has the project been phased to the maximum degree practicable? Has regular inspection, monitoring and maintenance been performed as required by the permit? Has the SWPPP been updated, implemented and records maintained? 13 Protect LID Is all Bioretention and Rain Garden Facilities protected from sedimentation with appropriate BMPs? Is the Bioretention and Rain Garden protected against over compaction of construction equipment and foot traffic to retain its infiltration capabilities? Permeable pavements are clean and free of sediment and sediment laden- water runoff. Muddy construction equipment has not been on the base material or pavement. Have soiled permeable pavements been cleaned of sediments and pass infiltration test as required by stormwater manual methodology? Heavy equipment has been kept off existing soils under LID facilities to retain infiltration rate. E. Check all areas that have been inspected. All in place BMPs All disturbed soils All concrete wash out area All material storage areas All discharge locations All equipment storage areas All construction entrances/exits Construction Stormwater Site Inspection Form Page 5 F. Elements checked “Action Required” (section D) describe corrective action to be taken. List the element number; be specific on location and work needed. Document, initial, and date when the corrective action has been completed and inspected. Element # Description and Location Action Required Completion Date Initials Attach additional page if needed Sign the following certification: “I certify that this report is true, accurate, and complete, to the best of my knowledge and belief” Inspected by: (print) (Signature) Date: Title/Qualification of Inspector: CITY OF RENTON SE 172ND STREET AND 125TH AVENUE SE GSI PROJECT 5 OSBORN C ONSULTING, I NC. B ELLEVUE • S EATTLE • SPOKANE APPENDIX D – CONSTRUCTION STORMWATER GENERAL PERMIT (CSWGP) Place holder for final draft CITY OF RENTON SE 172ND STREET AND 125TH AVENUE SE GSI PROJECT 6 OSBORN C ONSULTING, I NC. B ELLEVUE • S EATTLE • SPOKANE APPENDIX E – CONTAMINATED SITE INFORMATION AS NEEDED. Place holder for final draft CITY OF RENTON SE 172ND STREET AND 125TH AVENUE SE GSI PROJECT 7 OSBORN C ONSULTING, I NC. B ELLEVUE • S EATTLE • SPOKANE APPENDIX F – ENGINEERING CALCULATIONS AS NEEDED. Place holder for final draft 1 OSBORN C ONSULTING, I NC. B ELLEVUE • S EATTLE • SPOKANE APPENDIX G – GEOTECHNICAL ENGINEERING REPORT Provided under separate cover. Issuance Date: November 18, 2020 Effective Date: January 1, 2021 Expiration Date: December 31, 2025 CONSTRUCTION STORMWATER GENERAL PERMIT National Pollutant Discharge Elimination System (NPDES) and State Waste Discharge General Permit for Stormwater Discharges Associated with Construction Activity State of Washington Department of Ecology Olympia, Washington 98504 In compliance with the provisions of Chapter 90.48 Revised Code of Washington (State of Washington Water Pollution Control Act) and Title 33 United States Code, Section 1251 et seq. The Federal Water Pollution Control Act (The Clean Water Act) Until this permit expires, is modified, or revoked, Permittees that have properly obtained coverage under this general permit are authorized to discharge in accordance with the special and general conditions that follow. __________________________________ Vincent McGowan, P.E. Water Quality Program Manager Washington State Department of Ecology Construction Stormwater General Permit Page i TABLE OF CONTENTS LIST OF TABLES .................................................................................................................................. ii SUMMARY OF PERMIT REPORT SUBMITTALS ...................................................................................... 1 SPECIAL CONDITIONS ......................................................................................................................... 3 S1. Permit Coverage .............................................................................................................................. 3 S2. Application Requirements ............................................................................................................... 7 S3. Compliance with Standards ............................................................................................................. 9 S4. Monitoring Requirements, Benchmarks, and Reporting Triggers ................................................. 10 S5. Reporting and Recordkeeping Requirements ................................................................................ 17 S6. Permit Fees .................................................................................................................................... 20 S7. Solid and Liquid Waste Disposal .................................................................................................... 20 S8. Discharges to 303(D) or TMDL Waterbodies ................................................................................. 20 S9. Stormwater Pollution Prevention Plan .......................................................................................... 23 S10. Notice Of Termination ................................................................................................................... 32 GENERAL CONDITIONS ..................................................................................................................... 34 G1. Discharge Violations....................................................................................................................... 34 G2. Signatory Requirements ................................................................................................................ 34 G3. Right of Inspection and Entry ......................................................................................................... 35 G4. General Permit Modification and Revocation ............................................................................... 35 G5. Revocation of Coverage Under tPermit ......................................................................................... 35 G6. Reporting a Cause for Modification ............................................................................................... 36 G7. Compliance with Other Laws and Statutes .................................................................................... 36 G8. Duty to Reapply.............................................................................................................................. 36 G9. Removed Substance ....................................................................................................................... 36 G10. Duty to Provide Information .......................................................................................................... 36 G11. Other Requirements of 40 CFR ...................................................................................................... 37 G12. Additional Monitoring .................................................................................................................... 37 G13. Penalties for Violating Permit Conditions ...................................................................................... 37 G14. Upset .............................................................................................................................................. 37 G15. Property Rights .............................................................................................................................. 37 G16. Duty to Comply .............................................................................................................................. 37 G17. Toxic Pollutants .............................................................................................................................. 38 G18. Penalties for Tampering ................................................................................................................. 38 G19. Reporting Planned Changes ........................................................................................................... 38 G20. Reporting Other Information ......................................................................................................... 38 G21. Reporting Anticipated Non-Compliance ........................................................................................ 38 Construction Stormwater General Permit Page ii G22. Requests to Be Excluded From Coverage Under the Permit ......................................................... 39 G23. Appeals........................................................................................................................................... 39 G24. Severability..................................................................................................................................... 39 G25. Bypass Prohibited .......................................................................................................................... 39 APPENDIX A – DEFINITIONS .............................................................................................................. 42 APPENDIX B – ACRONYMS ................................................................................................................ 50 LIST OF TABLES Table 1 Summary of Required Submittals ................................................................................................ 1 Table 2 Summary of Required On-site Documentation ........................................................................... 2 Table 3 Summary of Primary Monitoring Requirements ....................................................................... 12 Table 4 Monitoring and Reporting Requirements ................................................................................. 14 Table 5 Turbidity, Fine Sediment & Phosphorus Sampling and Limits for 303(d)-Listed Waters ................................................................................................................ 22 Table 6 pH Sampling and Limits for 303(d)-Listed Waters ..................................................................... 22 Construction Stormwater General Permit Page 1 SUMMARY OF PERMIT REPORT SUBMITTALS Refer to the Special and General Conditions within this permit for additional submittal requirements. Appendix A provides a list of definitions. Appendix B provides a list of acronyms. Table 1 Summary of Required Submittals Permit Section Submittal Frequency First Submittal Date S5.A and S8 High Turbidity/Transparency Phone Reporting As Necessary Within 24 hours S5.B Discharge Monitoring Report Monthly* Within 15 days following the end of each month S5.F and S8 Noncompliance Notification – Telephone Notification As necessary Within 24 hours S5.F Noncompliance Notification – Written Report As necessary Within 5 Days of non-compliance S9.D Request for Chemical Treatment Form As necessary Written approval from Ecology is required prior to using chemical treatment (with the exception of dry ice, CO2 or food grade vinegar to adjust pH) G2 Notice of Change in Authorization As necessary G6 Permit Application for Substantive Changes to the Discharge As necessary G8 Application for Permit Renewal 1/permit cycle No later than 180 days before expiration S2.A Notice of Permit Transfer As necessary G19 Notice of Planned Changes As necessary G21 Reporting Anticipated Non-compliance As necessary NOTE: *Permittees must submit electronic Discharge Monitoring Reports (DMRs) to the Washington State Department of Ecology monthly, regardless of site discharge, for the full duration of permit coverage. Refer to Section S5.B of this General Permit for more specific information regarding DMRs. Construction Stormwater General Permit Page 2 Table 2 Summary of Required On-site Documentation Document Title Permit Conditions Permit Coverage Letter See Conditions S2, S5 Construction Stormwater General Permit (CSWGP) See Conditions S2, S5 Site Log Book See Conditions S4, S5 Stormwater Pollution Prevention Plan (SWPPP) See Conditions S5, S9 Site Map See Conditions S5, S9 Construction Stormwater General Permit Page 3 SPECIAL CONDITIONS S1. PERMIT COVERAGE A. Permit Area This Construction Stormwater General Permit (CSWGP) covers all areas of Washington State, except for federal operators and Indian Country as specified in Special Condition S1.E.3 and 4. B. Operators Required to Seek Coverage Under this General Permit 1. Operators of the following construction activities are required to seek coverage under this CSWGP: a. Clearing, grading and/or excavation that results in the disturbance of one or more acres (including off-site disturbance acreage related to construction-support activity as authorized in S1.C.2) and discharges stormwater to surface waters of the State; and clearing, grading and/or excavation on sites smaller than one acre that are part of a larger common plan of development or sale, if the common plan of development or sale will ultimately disturb one acre or more and discharge stormwater to surface waters of the State. i. This category includes forest practices (including, but not limited to, class IV conversions) that are part of a construction activity that will result in the disturbance of one or more acres, and discharge to surface waters of the State (that is, forest practices that prepare a site for construction activities); and b. Any size construction activity discharging stormwater to waters of the State that the Washington State Department of Ecology (Ecology): i. Determines to be a significant contributor of pollutants to waters of the State of Washington. ii. Reasonably expects to cause a violation of any water quality standard. 2. Operators of the following activities are not required to seek coverage under this CSWGP (unless specifically required under Special Condition S1.B.1.b, above): a. Construction activities that discharge all stormwater and non-stormwater to groundwater, sanitary sewer, or combined sewer, and have no point source discharge to either surface water or a storm sewer system that drains to surface waters of the State. b. Construction activities covered under an Erosivity Waiver (Special Condition S1.F). c. Routine maintenance that is performed to maintain the original line and grade, hydraulic capacity, or original purpose of a facility. C. Authorized Discharges 1. Stormwater Associated with Construction Activity. Subject to compliance with the terms and conditions of this permit, Permittees are authorized to discharge stormwater associated with construction activity to surface waters of the State or to a storm sewer system that drains to surface waters of the State. (Note that “surface waters of the Construction Stormwater General Permit Page 4 State” may exist on a construction site as well as off site; for example, a creek running through a site.) 2. Stormwater Associated with Construction Support Activity. This permit also authorizes stormwater discharge from support activities related to the permitted construction site (for example, an on-site portable rock crusher, off-site equipment staging yards, material storage areas, borrow areas, etc.) provided: a. The support activity relates directly to the permitted construction site that is required to have an NPDES permit; and b. The support activity is not a commercial operation serving multiple unrelated construction projects, and does not operate beyond the completion of the construction activity; and c. Appropriate controls and measures are identified in the Stormwater Pollution Prevention Plan (SWPPP) for the discharges from the support activity areas. 3. Non-Stormwater Discharges. The categories and sources of non-stormwater discharges identified below are authorized conditionally, provided the discharge is consistent with the terms and conditions of this permit: a. Discharges from fire-fighting activities. b. Fire hydrant system flushing. c. Potable water, including uncontaminated water line flushing. d. Hydrostatic test water. e. Uncontaminated air conditioning or compressor condensate. f. Uncontaminated groundwater or spring water. g. Uncontaminated excavation dewatering water (in accordance with S9.D.10). h. Uncontaminated discharges from foundation or footing drains. i. Uncontaminated or potable water used to control dust. Permittees must minimize the amount of dust control water used. j. Routine external building wash down that does not use detergents. k. Landscape irrigation water. The SWPPP must adequately address all authorized non-stormwater discharges, except for discharges from fire-fighting activities, and must comply with Special Condition S3. At a minimum, discharges from potable water (including water line flushing), fire hydrant system flushing, and pipeline hydrostatic test water must undergo the following: dechlorination to a concentration of 0.1 parts per million (ppm) or less, and pH adjustment to within 6.5 – 8.5 standard units (su), if necessary. D. Prohibited Discharges The following discharges to waters of the State, including groundwater, are prohibited: Construction Stormwater General Permit Page 5 1. Concrete wastewater 2. Wastewater from washout and clean-up of stucco, paint, form release oils, curing compounds and other construction materials. 3. Process wastewater as defined by 40 Code of Federal Regulations (CFR) 122.2 (See Appendix A of this permit). 4. Slurry materials and waste from shaft drilling, including process wastewater from shaft drilling for construction of building, road, and bridge foundations unless managed according to Special Condition S9.D.9.j. 5. Fuels, oils, or other pollutants used in vehicle and equipment operation and maintenance. 6. Soaps or solvents used in vehicle and equipment washing. 7. Wheel wash wastewater, unless managed according to Special Condition S9.D.9. 8. Discharges from dewatering activities, including discharges from dewatering of trenches and excavations, unless managed according to Special Condition S9.D.10. E. Limits on Coverage Ecology may require any discharger to apply for and obtain coverage under an individual permit or another more specific general permit. Such alternative coverage will be required when Ecology determines that this CSWGP does not provide adequate assurance that water quality will be protected, or there is a reasonable potential for the project to cause or contribute to a violation of water quality standards. The following stormwater discharges are not covered by this permit: 1. Post-construction stormwater discharges that originate from the site after completion of construction activities and the site has undergone final stabilization. 2. Non-point source silvicultural activities such as nursery operations, site preparation, reforestation and subsequent cultural treatment, thinning, prescribed burning, pest and fire control, harvesting operations, surface drainage, or road construction and maintenance, from which there is natural runoff as excluded in 40 CFR Subpart 122. 3. Stormwater from any federal operator. 4. Stormwater from facilities located on Indian Country as defined in 18 U.S.C.§1151, except portions of the Puyallup Reservation as noted below. Indian Country includes: a. All land within any Indian Reservation notwithstanding the issuance of any patent, and, including rights-of-way running through the reservation. This includes all federal, tribal, and Indian and non-Indian privately owned land within the reservation. b. All off-reservation Indian allotments, the Indian titles to which have not been extinguished, including rights-of-way running through the same. c. All off-reservation federal trust lands held for Native American Tribes. Construction Stormwater General Permit Page 6 Puyallup Exception: Following the Puyallup Tribes of Indians Land Settlement Act of 1989, 25 U.S.C. §1773; the permit does apply to land within the Puyallup Reservation except for discharges to surface water on land held in trust by the federal government. 5. Stormwater from any site covered under an existing NPDES individual permit in which stormwater management and/or treatment requirements are included for all stormwater discharges associated with construction activity. 6. Stormwater from a site where an applicable Total Maximum Daily Load (TMDL) requirement specifically precludes or prohibits discharges from construction activity. F. Erosivity Waiver Construction site operators may qualify for an Erosivity Waiver from the CSWGP if the following conditions are met: 1. The site will result in the disturbance of fewer than five (5) acres and the site is not a portion of a common plan of development or sale that will disturb five (5) acres or greater. 2. Calculation of Erosivity “R” Factor and Regional Timeframe: a. The project’s calculated rainfall erosivity factor (“R” Factor) must be less than five (5) during the period of construction activity, (See the CSWGP homepage http://www.ecy.wa.gov/programs/wq/stormwater/construction/index.html for a link to the EPA’s calculator and step by step instructions on computing the “R” Factor in the EPA Erosivity Waiver Fact Sheet). The period of construction activity starts when the land is first disturbed and ends with final stabilization. In addition: b. The entire period of construction activity must fall within the following timeframes: i. For sites west of the Cascades Crest: June 15 – September 15. ii. For sites east of the Cascades Crest, excluding the Central Basin: June 15 – October 15. iii. For sites east of the Cascades Crest, within the Central Basin: no timeframe restrictions apply. The Central Basin is defined as the portions of Eastern Washington with mean annual precipitation of less than 12 inches. For a map of the Central Basin (Average Annual Precipitation Region 2), refer to: http://www.ecy.wa.gov/programs/wq/stormwater/construction/resourcesguida nce.html. 3. Construction site operators must submit a complete Erosivity Waiver certification form at least one week before disturbing the land. Certification must include statements that the operator will: a. Comply with applicable local stormwater requirements; and b. Implement appropriate erosion and sediment control BMPs to prevent violations of water quality standards. 4. This waiver is not available for facilities declared significant contributors of pollutants as defined in Special Condition S1.B.1.b or for any size construction activity that could Construction Stormwater General Permit Page 7 reasonably expect to cause a violation of any water quality standard as defined in Special Condition S1.B.1.b.ii. 5. This waiver does not apply to construction activities which include non-stormwater discharges listed in Special Condition S1.C.3. 6. If construction activity extends beyond the certified waiver period for any reason, the operator must either: a. Recalculate the rainfall erosivity “R” factor using the original start date and a new projected ending date and, if the “R” factor is still under 5 and the entire project falls within the applicable regional timeframe in Special Condition S1.F.2.b, complete and submit an amended waiver certification form before the original waiver expires; or b. Submit a complete permit application to Ecology in accordance with Special Condition S2.A and B before the end of the certified waiver period. S2. APPLICATION REQUIREMENTS A. Permit Application Forms 1. Notice of Intent Form a. Operators of new or previously unpermitted construction activities must submit a complete and accurate permit application (Notice of Intent, or NOI) to Ecology. b. Operators must apply using the electronic application form (NOI) available on Ecology’s website (http://ecy.wa.gov/programs/wq/stormwater/construction/index.html). Permittees unable to submit electronically (for example, those who do not have an internet connection) must contact Ecology to request a waiver and obtain instructions on how to obtain a paper NOI. Department of Ecology Water Quality Program - Construction Stormwater PO Box 47696 Olympia, Washington 98504-7696 c. The operator must submit the NOI at least 60 days before discharging stormwater from construction activities and must submit it prior to the date of the first public notice (See Special Condition S2.B, below, for details). The 30-day public comment period begins on the publication date of the second public notice. Unless Ecology responds to the complete application in writing, coverage under the general permit will automatically commence on the 31st day following receipt by Ecology of a completed NOI, or the issuance date of this permit, whichever is later; unless Ecology specifies a later date in writing as required by WAC173-226-200(2). See S8.B for Limits on Coverage for New Discharges to TMDL or 303(d)-Listed Waters. d. If an applicant intends to use a Best Management Practice (BMP) selected on the basis of Special Condition S9.C.4 (“demonstrably equivalent” BMPs), the applicant must notify Ecology of its selection as part of the NOI. In the event the applicant selects BMPs after submission of the NOI, the applicant must provide notice of the Construction Stormwater General Permit Page 8 selection of an equivalent BMP to Ecology at least 60 days before intended use of the equivalent BMP. e. Applicants must notify Ecology if they are aware of contaminated soils and/or groundwater associated with the construction activity. Provide detailed information with the NOI (as known and readily available) on the nature and extent of the contamination (concentrations, locations, and depth), as well as pollution prevention and/or treatment BMPs proposed to control the discharge of soil and/or groundwater contaminants in stormwater. Examples of such detail may include, but are not limited to: i. List or table of all known contaminants with laboratory test results showing concentration and depth, ii. Map with sample locations, iii. Related portions of the Stormwater Pollution Prevention Plan (SWPPP) that address the management of contaminated and potentially contaminated construction stormwater and dewatering water, iv. Dewatering plan and/or dewatering contingency plan. 2. Transfer of Coverage Form The Permittee can transfer current coverage under this permit to one or more new operators, including operators of sites within a Common Plan of Development, provided: i. The Permittee submits a complete Transfer of Coverage Form to Ecology, signed by the current and new discharger and containing a specific date for transfer of permit responsibility, coverage and liability (including any Administrative Orders associated with the permit); and ii. Ecology does not notify the current discharger and new discharger of intent to revoke coverage under the general permit. If this notice is not given, the transfer is effective on the date specified in the written agreement. When a current discharger (Permittee) transfers a portion of a permitted site, the current discharger must also indicate the remaining permitted acreage after the transfer. Transfers do not require public notice. 3. Modification of Coverage Form Permittees must notify Ecology regarding any changes to the information provided on the NOI by submitting an Update/Modification of Permit Coverage form in accordance with General Conditions G6 and G19. Examples of such changes include, but are not limited to: i. Changes to the Permittee’s mailing address, ii. Changes to the on-site contact person information, and iii. Changes to the area/acreage affected by construction activity. Construction Stormwater General Permit Page 9 B. Public Notice For new or previously unpermitted construction activities, the applicant must publish a public notice at least one time each week for two consecutive weeks, at least 7 days apart, in a newspaper with general circulation in the county where the construction is to take place. The notice must be run after the NOI has been submitted and must contain: 1. A statement that “The applicant is seeking coverage under the Washington State Department of Ecology’s Construction Stormwater NPDES and State Waste Discharge General Permit.” 2. The name, address, and location of the construction site. 3. The name and address of the applicant. 4. The type of construction activity that will result in a discharge (for example, residential construction, commercial construction, etc.), and the total number of acres to be disturbed over the lifetime of the project. 5. The name of the receiving water(s) (that is, the surface water(s) to which the site will discharge), or, if the discharge is through a storm sewer system, the name of the operator of the system and the receiving water(s) the system discharges to. 6. The statement: Any persons desiring to present their views to the Washington State Department of Ecology regarding this application, or interested in Ecology’s action on this application, may notify Ecology in writing no later than 30 days of the last date of publication of this notice. Ecology reviews public comments and considers whether discharges from this project would cause a measurable change in receiving water quality, and, if so, whether the project is necessary and in the overriding public interest according to Tier II antidegradation requirements under WAC 173-201A-320. Comments can be submitted to: Department of Ecology, PO Box 47696, Olympia, Washington 98504-7696 Attn: Water Quality Program, Construction Stormwater. S3. COMPLIANCE WITH STANDARDS A. Discharges must not cause or contribute to a violation of surface water quality standards (Chapter 173-201A WAC), groundwater quality standards (Chapter 173-200 WAC), sediment management standards (Chapter 173-204 WAC), and human health-based criteria in the Federal water quality criteria applicable to Washington. (40 CFR Part 131.45) Discharges that are not in compliance with these standards are prohibited. B. Prior to the discharge of stormwater and non-stormwater to waters of the State, the Permittee must apply All Known, Available, and Reasonable methods of prevention, control, and Treatment (AKART). This includes the preparation and implementation of an adequate SWPPP, with all appropriate BMPs installed and maintained in accordance with the SWPPP and the terms and conditions of this permit. C. Ecology presumes that a Permittee complies with water quality standards unless discharge monitoring data or other site-specific information demonstrates that a discharge causes or contributes to a violation of water quality standards, when the Permittee complies with the following conditions. The Permittee must fully: Construction Stormwater General Permit Page 10 1. Comply with all permit conditions, including; planning, sampling, monitoring, reporting, and recordkeeping conditions. 2. Implement stormwater BMPs contained in stormwater management manuals published or approved by Ecology, or BMPs that are demonstrably equivalent to BMPs contained in stormwater management manuals published or approved by Ecology, including the proper selection, implementation, and maintenance of all applicable and appropriate BMPs for on-site pollution control. (For purposes of this section, the stormwater manuals listed in Appendix 10 of the Phase I Municipal Stormwater Permit are approved by Ecology.) D. Where construction sites also discharge to groundwater, the groundwater discharges must also meet the terms and conditions of this CSWGP. Permittees who discharge to groundwater through an injection well must also comply with any applicable requirements of the Underground Injection Control (UIC) regulations, Chapter 173-218 WAC. S4. MONITORING REQUIREMENTS, BENCHMARKS, AND REPORTING TRIGGERS A. Site Log Book The Permittee must maintain a site log book that contains a record of the implementation of the SWPPP and other permit requirements, including the installation and maintenance of BMPs, site inspections, and stormwater monitoring. B. Site Inspections Construction sites one (1) acre or larger that discharge stormwater to surface waters of the State must have site inspections conducted by a Certified Erosion and Sediment Control Lead (CESCL). Sites less than one (1) acre may have a person without CESCL certification conduct inspections. (See Special Conditions S4.B.3 and B.4, below, for detailed requirements of the Permittee’s CESCL.) Site inspections must include all areas disturbed by construction activities, all BMPs, and all stormwater discharge points under the Permittee’s operational control. 1. The Permittee must have staff knowledgeable in the principles and practices of erosion and sediment control. The CESCL (sites one acre or more) or inspector (sites less than one acre) must have the skills to assess the: a. Site conditions and construction activities that could impact the quality of stormwater; and b. Effectiveness of erosion and sediment control measures used to control the quality of stormwater discharges. The SWPPP must identify the CESCL or inspector, who must be present on site or on-call at all times. The CESCL (sites one (1) acre or more) must obtain this certification through an approved erosion and sediment control training program that meets the minimum training standards established by Ecology. (See BMP C160 in the manual, referred to in Special Condition S9.C.1 and 2.) 2. The CESCL or inspector must examine stormwater visually for the presence of suspended sediment, turbidity, discoloration, and oil sheen. BMP effectiveness must be evaluated to Construction Stormwater General Permit Page 11 determine if it is necessary to install, maintain, or repair BMPs to improve the quality of stormwater discharges. Based on the results of the inspection, the Permittee must correct the problems identified, by: a. Reviewing the SWPPP for compliance with Special Condition S9 and making appropriate revisions within 7 days of the inspection. b. Immediately beginning the process of fully implementing and maintaining appropriate source control and/or treatment BMPs, within 10 days of the inspection. If installation of necessary treatment BMPs is not feasible within 10 days, Ecology may approve additional time when an extension is requested by a Permittee within the initial 10-day response period. c. Documenting BMP implementation and maintenance in the site log book. 3. The CESCL or inspector must inspect all areas disturbed by construction activities, all BMPs, and all stormwater discharge points at least once every calendar week and within 24 hours of any discharge from the site. (For purposes of this condition, individual discharge events that last more than one (1) day do not require daily inspections. For example, if a stormwater pond discharges continuously over the course of a week, only one (1) inspection is required that week.) Inspection frequency may be reduced to once every calendar month for inactive sites that are temporarily stabilized. 4. The Permittee must summarize the results of each inspection in an inspection report or checklist and enter the report/checklist into, or attach it to, the site log book. At a minimum, each inspection report or checklist must include: a. Inspection date and time. b. Weather information. c. The general conditions during inspection. d. The approximate amount of precipitation since the last inspection. e. The approximate amount of precipitation within the last 24 hours. f. A summary or list of all implemented BMPs, including observations of all erosion/sediment control structures or practices. g. A description of: i. BMPs inspected (including location). ii. BMPs that need maintenance and why. iii. BMPs that failed to operate as designed or intended, and iv. Where additional or different BMPs are needed, and why. h. A description of stormwater discharged from the site. The Permittee must note the presence of suspended sediment, turbidity, discoloration, and oil sheen, as applicable. Construction Stormwater General Permit Page 12 i. Any water quality monitoring performed during inspection. j. General comments and notes, including a brief description of any BMP repairs, maintenance, or installations made following the inspection. k. An implementation schedule for the remedial actions that the Permittee plans to take if the site inspection indicates that the site is out of compliance. The remedial actions taken must meet the requirements of the SWPPP and the permit. l. A summary report of the inspection. m. The name, title, and signature of the person conducting the site inspection, a phone number or other reliable method to reach this person, and the following statement: I certify that this report is true, accurate, and complete to the best of my knowledge and belief. Table 3 Summary of Primary Monitoring Requirements Size of Soil Disturbance 1 Weekly Site Inspections Weekly Sampling w/ Turbidity Meter Weekly Sampling w/ Transparency Tube Weekly pH Sampling 2 CESCL Required for Inspections? Sites that disturb less than 1 acre, but are part of a larger Common Plan of Development Required Not Required Not Required Not Required No Sites that disturb 1 acre or more, but fewer than 5 acres Required Sampling Required – either method 3 Required Yes Sites that disturb 5 acres or more Required Required Not Required 4 Required Yes 1 Soil disturbance is calculated by adding together all areas that will be affected by construction activity. Construction activity means clearing, grading, excavation, and any other activity that disturbs the surface of the land, including ingress/egress from the site. 2 If construction activity results in the disturbance of 1 acre or more, and involves significant concrete work (1,000 cubic yards of concrete or recycled concrete placed or poured over the life of a project) or the use of engineered soils (soil amendments including but not limited to Portland cement-treated base [CTB], cement kiln dust [CKD], or fly ash), and stormwater from the affected area drains to surface waters of the State or to a storm sewer stormwater collection system that drains to other surface waters of the State, the Permittee must conduct pH sampling in accordance with Special Condition S4.D. 3 Sites with one or more acres, but fewer than 5 acres of soil disturbance, must conduct turbidity or transparency sampling in accordance with Special Condition S4.C.4.a or b. 4 Sites equal to or greater than 5 acres of soil disturbance must conduct turbidity sampling using a turbidity meter in accordance with Special Condition S4.C.4.a. Construction Stormwater General Permit Page 13 C. Turbidity/Transparency Sampling Requirements 1. Sampling Methods a. If construction activity involves the disturbance of five (5) acres or more, the Permittee must conduct turbidity sampling per Special Condition S4.C.4.a, below. b. If construction activity involves one (1) acre or more but fewer than five (5) acres of soil disturbance, the Permittee must conduct either transparency sampling or turbidity sampling per Special Condition S4.C.4.a or b, below. 2. Sampling Frequency a. The Permittee must sample all discharge points at least once every calendar week when stormwater (or authorized non-stormwater) discharges from the site or enters any on-site surface waters of the state (for example, a creek running through a site); sampling is not required on sites that disturb less than an acre. b. Samples must be representative of the flow and characteristics of the discharge. c. Sampling is not required when there is no discharge during a calendar week. d. Sampling is not required outside of normal working hours or during unsafe conditions. e. If the Permittee is unable to sample during a monitoring period, the Permittee must include a brief explanation in the monthly Discharge Monitoring Report (DMR). f. Sampling is not required before construction activity begins. g. The Permittee may reduce the sampling frequency for temporarily stabilized, inactive sites to once every calendar month. 3. Sampling Locations a. Sampling is required at all points where stormwater associated with construction activity (or authorized non-stormwater) is discharged off site, including where it enters any on-site surface waters of the state (for example, a creek running through a site). b. The Permittee may discontinue sampling at discharge points that drain areas of the project that are fully stabilized to prevent erosion. c. The Permittee must identify all sampling point(s) in the SWPPP and on the site map and clearly mark these points in the field with a flag, tape, stake or other visible marker. d. Sampling is not required for discharge that is sent directly to sanitary or combined sewer systems. e. The Permittee may discontinue sampling at discharge points in areas of the project where the Permittee no longer has operational control of the construction activity. Construction Stormwater General Permit Page 14 4. Sampling and Analysis Methods a. The Permittee performs turbidity analysis with a calibrated turbidity meter (turbidimeter) either on site or at an accredited lab. The Permittee must record the results in the site log book in nephelometric turbidity units (NTUs). b. The Permittee performs transparency analysis on site with a 1¾ inch diameter, 60 centimeter (cm)-long transparency tube. The Permittee will record the results in the site log book in centimeters (cm). Table 4 Monitoring and Reporting Requirements Parameter Unit Analytical Method Sampling Frequency Benchmark Value Turbidity NTU SM2130 Weekly, if discharging 25 NTUs Transparency Cm Manufacturer instructions, or Ecology guidance Weekly, if discharging 33 cm 5. Turbidity/Transparency Benchmark Values and Reporting Triggers The benchmark value for turbidity is 25 NTUs. The benchmark value for transparency is 33 centimeters (cm). Note: Benchmark values do not apply to discharges to segments of water bodies on Washington State’s 303(d) list (Category 5) for turbidity, fine sediment, or phosphorus; these discharges are subject to a numeric effluent limit for turbidity. Refer to Special Condition S8 for more information and follow S5.F – Noncompliance Notification for reporting requirements applicable to discharges which exceed the numeric effluent limit for turbidity. a. Turbidity 26 – 249 NTUs, or Transparency 32 – 7 cm: If the discharge turbidity is 26 to 249 NTUs; or if discharge transparency is 32 to 7 cm, the Permittee must: i. Immediately begin the process to fully implement and maintain appropriate source control and/or treatment BMPs, and no later than 10 days of the date the discharge exceeded the benchmark. If installation of necessary treatment BMPs is not feasible within 10 days, Ecology may approve additional time when the Permittee requests an extension within the initial 10-day response period. ii. Review the SWPPP for compliance with Special Condition S9 and make appropriate revisions within 7 days of the date the discharge exceeded the benchmark. iii. Document BMP implementation and maintenance in the site log book. b. Turbidity 250 NTUs or greater, or Transparency 6 cm or less: If a discharge point’s turbidity is 250 NTUs or greater, or if discharge transparency is less than or equal to 6 cm, the Permittee must complete the reporting and adaptive Construction Stormwater General Permit Page 15 management process described below. For discharges which are subject to a numeric effluent limit for turbidity, see S5.F – Noncompliance Notification. i. Within 24 hours, telephone or submit an electronic report to the applicable Ecology Region’s Environmental Report Tracking System (ERTS) number (or through Ecology’s Water Quality Permitting Portal [WQWebPortal] – Permit Submittals when the form is available), in accordance with Special Condition S5.A. • Central Region (Okanogan, Chelan, Douglas, Kittitas, Yakima, Klickitat, Benton): (509) 575-2490 • Eastern Region (Adams, Asotin, Columbia, Ferry, Franklin, Garfield, Grant, Lincoln, Pend Oreille, Spokane, Stevens, Walla Walla, Whitman): (509) 329-3400 • Northwest Region (Kitsap, Snohomish, Island, King, San Juan, Skagit, Whatcom): (425) 649-7000 • Southwest Region (Grays Harbor, Lewis, Mason, Thurston, Pierce, Clark, Cowlitz, Skamania, Wahkiakum, Clallam, Jefferson, Pacific): (360) 407-6300 These numbers and a link to the ERTS reporting page are also listed at the following website: http://www.ecy.wa.gov/programs/wq/stormwater/construction/index.html. ii. Immediately begin the process to fully implement and maintain appropriate source control and/or treatment BMPs as soon as possible, addressing the problems within 10 days of the date the discharge exceeded the benchmark. If installation of necessary treatment BMPs is not feasible within 10 days, Ecology may approve additional time when the Permittee requests an extension within the initial 10-day response period. iii. Sample discharges daily until: a) Turbidity is 25 NTUs (or lower); or b) Transparency is 33 cm (or greater); or c) The Permittee has demonstrated compliance with the water quality standard for turbidity: 1) No more than 5 NTUs over background turbidity, if background is less than 50 NTUs, or 2) No more than 10% over background turbidity, if background is 50 NTUs or greater; or *Note: background turbidity in the receiving water must be measured immediately upstream (upgradient) or outside of the area of influence of the discharge. d) The discharge stops or is eliminated. iv. Review the SWPPP for compliance with Special Condition S9 and make appropriate revisions within seven (7) days of the date the discharge exceeded the benchmark. Construction Stormwater General Permit Page 16 v. Document BMP implementation and maintenance in the site log book. Compliance with these requirements does not relieve the Permittee from responsibility to maintain continuous compliance with permit benchmarks. D. pH Sampling Requirements – Significant Concrete Work or Engineered Soils If construction activity results in the disturbance of 1 acre or more, and involves significant concrete work (significant concrete work means greater than 1000 cubic yards placed or poured concrete or recycled concrete used over the life of a project) or the use of engineered soils (soil amendments including but not limited to Portland cement-treated base [CTB], cement kiln dust [CKD], or fly ash), and stormwater from the affected area drains to surface waters of the State or to a storm sewer system that drains to surface waters of the State, the Permittee must conduct pH sampling as set forth below. Note: In addition, discharges to segments of water bodies on Washington State’s 303(d) list (Category 5) for high pH are subject to a numeric effluent limit for pH; refer to Special Condition S8. 1. The Permittee must perform pH analysis on site with a calibrated pH meter, pH test kit, or wide range pH indicator paper. The Permittee must record pH sampling results in the site log book. 2. During the applicable pH monitoring period defined below, the Permittee must obtain a representative sample of stormwater and conduct pH analysis at least once per week. a. For sites with significant concrete work, the Permittee must begin the pH sampling period when the concrete is first placed or poured and exposed to precipitation, and continue weekly throughout and after the concrete placement, pour and curing period, until stormwater pH is in the range of 6.5 to 8.5 (su). b. For sites with recycled concrete where monitoring is required, the Permittee must begin the weekly pH sampling period when the recycled concrete is first exposed to precipitation and must continue until the recycled concrete is fully stabilized with the stormwater pH in the range of 6.5 to 8.5 (su). c. For sites with engineered soils, the Permittee must begin the pH sampling period when the soil amendments are first exposed to precipitation and must continue until the area of engineered soils is fully stabilized. 3. The Permittee must sample pH in the sediment trap/pond(s) or other locations that receive stormwater runoff from the area of significant concrete work or engineered soils before the stormwater discharges to surface waters. 4. The benchmark value for pH is 8.5 standard units. Anytime sampling indicates that pH is 8.5 or greater, the Permittee must either: a. Prevent the high pH water (8.5 or above) from entering storm sewer systems or surface waters of the state; or b. If necessary, adjust or neutralize the high pH water until it is in the range of pH 6.5 to 8.5 (su) using an appropriate treatment BMP such as carbon dioxide (CO2) sparging, dry ice or food grade vinegar. The Permittee must obtain written approval from Ecology before using any form of chemical treatment other than CO2 sparging, dry ice or food grade vinegar. Construction Stormwater General Permit Page 17 S5. REPORTING AND RECORDKEEPING REQUIREMENTS A. High Turbidity Reporting Anytime sampling performed in accordance with Special Condition S4.C indicates turbidity has reached the 250 NTUs or more (or transparency less than or equal to 6 cm), high turbidity reporting level, the Permittee must notify Ecology within 24 hours of analysis either by calling the applicable Ecology Region’s Environmental Report Tracking System (ERTS) number by phone or by submitting an electronic ERTS report (through Ecology’s Water Quality Permitting Portal (WQWebPortal) – Permit Submittals when the form is available). See the CSWGP website for links to ERTS and the WQWebPortal. (http://www.ecy.wa.gov/programs/wq/stormwater/ construction/index.html) Also, see phone numbers in Special Condition S4.C.5.b.i. B. Discharge Monitoring Reports (DMRs) Permittees required to conduct water quality sampling in accordance with Special Conditions S4.C (Turbidity/Transparency), S4.D (pH), S8 (303[d]/TMDL sampling), and/or G12 (Additional Sampling) must submit the results to Ecology. Permittees must submit monitoring data using Ecology's WQWebDMR web application accessed through Ecology’s Water Quality Permitting Portal. Permittees unable to submit electronically (for example, those who do not have an internet connection) must contact Ecology to request a waiver and obtain instructions on how to obtain a paper copy DMR at: Department of Ecology Water Quality Program - Construction Stormwater PO Box 47696 Olympia, WA 98504-7696 Permittees who obtain a waiver not to use WQWebDMR must use the forms provided to them by Ecology; submittals must be mailed to the address above. Permittees must submit DMR forms to be received by Ecology within 15 days following the end of each month. If there was no discharge during a given monitoring period, all Permittees must submit a DMR as required with “no discharge” entered in place of the monitoring results. DMRs are required for the full duration of permit coverage (from the first full month following the effective date of permit coverage up until Ecology has approved termination of the coverage). For more information, contact Ecology staff using information provided at the following website: www.ecy.wa.gov/programs/wq/permits/paris/contacts.html. C. Records Retention The Permittee must retain records of all monitoring information (site log book, sampling results, inspection reports/checklists, etc.), Stormwater Pollution Prevention Plan, copy of the permit coverage letter (including Transfer of Coverage documentation) and any other documentation of compliance with permit requirements for the entire life of the construction project and for a minimum of five (5) years following the termination of permit coverage. Such information must include all calibration and maintenance records, and records of all data used to complete the application for this permit. This period of retention must be extended during Construction Stormwater General Permit Page 18 the course of any unresolved litigation regarding the discharge of pollutants by the Permittee or when requested by Ecology. D. Recording Results For each measurement or sample taken, the Permittee must record the following information: 1. Date, place, method, and time of sampling or measurement. 2. The first and last name of the individual who performed the sampling or measurement. 3. The date(s) the analyses were performed. 4. The first and last name of the individual who performed the analyses. 5. The analytical techniques or methods used. 6. The results of all analyses. E. Additional Monitoring by the Permittee If the Permittee samples or monitors any pollutant more frequently than required by this permit using test procedures specified by Special Condition S4 of this permit, the sampling results for this monitoring must be included in the calculation and reporting of the data submitted in the Permittee’s DMR. F. Noncompliance Notification In the event the Permittee is unable to comply with any part of the terms and conditions of this permit, and the resulting noncompliance may cause a threat to human health or the environment (such as but not limited to spills or fuels or other materials, catastrophic pond or slope failure, and discharges that violate water quality standards), or exceed numeric effluent limitations (see S8 – Discharges to 303(d) or TMDL Waterbodies), the Permittee must, upon becoming aware of the circumstance: 1. Notify Ecology within 24 hours of the failure to comply by calling the applicable Regional office ERTS phone number (refer to Special Condition S4.C.5.b.i, or go to https://ecology.wa.gov/About-us/Get-involved/Report-an-environmental-issue to find contact information for the regional offices.) 2. Immediately take action to prevent the discharge/pollution, or otherwise stop or correct the noncompliance, and, if applicable, repeat sampling and analysis of any noncompliance immediately and submit the results to Ecology within five (5) days of becoming aware of the violation (See S5.F.3, below, for details on submitting results in a report). 3. Submit a detailed written report to Ecology within five (5) days of the time the Permittee becomes aware of the circumstances, unless requested earlier by Ecology. The report must be submitted using Ecology’s Water Quality Permitting Portal (WQWebPortal) – Permit Submittals, unless a waiver from electronic reporting has been granted according to S5.B. The report must contain a description of the noncompliance, including exact dates and times, and if the noncompliance has not been corrected, the anticipated time it is expected to continue; and the steps taken or planned to reduce, eliminate, and prevent reoccurrence of the noncompliance. Construction Stormwater General Permit Page 19 The Permittee must report any unanticipated bypass and/or upset that exceeds any effluent limit in the permit in accordance with the 24-hour reporting requirement contained in 40 C.F.R. 122.41(l)(6). Compliance with these requirements does not relieve the Permittee from responsibility to maintain continuous compliance with the terms and conditions of this permit or the resulting liability for failure to comply. Upon request of the Permittee, Ecology may waive the requirement for a written report on a case-by-case basis, if the immediate notification is received by Ecology within 24 hours. G. Access to Plans and Records 1. The Permittee must retain the following permit documentation (plans and records) on site, or within reasonable access to the site, for use by the operator or for on-site review by Ecology or the local jurisdiction: a. General Permit b. Permit Coverage Letter c. Stormwater Pollution Prevention Plan (SWPPP) d. Site Log Book e. Erosivity Waiver (if applicable) 2. The Permittee must address written requests for plans and records listed above (Special Condition S5.G.1) as follows: a. The Permittee must provide a copy of plans and records to Ecology within 14 days of receipt of a written request from Ecology. b. The Permittee must provide a copy of plans and records to the public when requested in writing. Upon receiving a written request from the public for the Permittee’s plans and records, the Permittee must either: i. Provide a copy of the plans and records to the requester within 14 days of a receipt of the written request; or ii. Notify the requester within 10 days of receipt of the written request of the location and times within normal business hours when the plans and records may be viewed; and provide access to the plans and records within 14 days of receipt of the written request; or Within 14 days of receipt of the written request, the Permittee may submit a copy of the plans and records to Ecology for viewing and/or copying by the requester at an Ecology office, or a mutually agreed location. If plans and records are viewed and/or copied at a location other than at an Ecology office, the Permittee will provide reasonable access to copying services for which a reasonable fee may be charged. The Permittee must notify the requester within 10 days of receipt of the request where the plans and records may be viewed and/or copied. Construction Stormwater General Permit Page 20 S6. PERMIT FEES The Permittee must pay permit fees assessed by Ecology. Fees for stormwater discharges covered under this permit are established by Chapter 173-224 WAC. Ecology continues to assess permit fees until the permit is terminated in accordance with Special Condition S10 or revoked in accordance with General Condition G5. S7. SOLID AND LIQUID WASTE DISPOSAL The Permittee must handle and dispose of solid and liquid wastes generated by construction activity, such as demolition debris, construction materials, contaminated materials, and waste materials from maintenance activities, including liquids and solids from cleaning catch basins and other stormwater facilities, in accordance with: A. Special Condition S3, Compliance with Standards. B. WAC 173-216-110. C. Other applicable regulations. S8. DISCHARGES TO 303(d) OR TMDL WATERBODIES A. Sampling and Numeric Effluent Limits For Certain Discharges to 303(d)-Listed Water Bodies 1. Permittees who discharge to segments of water bodies listed as impaired by the State of Washington under Section 303(d) of the Clean Water Act for turbidity, fine sediment, high pH, or phosphorus, must conduct water quality sampling according to the requirements of this section, and Special Conditions S4.C.2.b-f and S4.C.3.b-d, and must comply with the applicable numeric effluent limitations in S8.C and S8.D. 2. All references and requirements associated with Section 303(d) of the Clean Water Act mean the most current listing by Ecology of impaired waters (Category 5) that exists on January 1, 2021, or the date when the operator’s complete permit application is received by Ecology, whichever is later. B. Limits on Coverage for New Discharges to TMDL or 303(d)-Listed Waters Construction sites that discharge to a TMDL or 303(d)-listed waterbody are not eligible for coverage under this permit unless the operator: Construction Stormwater General Permit Page 21 1. Prevents exposing stormwater to pollutants for which the waterbody is impaired, and retains documentation in the SWPPP that details procedures taken to prevent exposure on site; or 2. Documents that the pollutants for which the waterbody is impaired are not present at the site, and retains documentation of this finding within the SWPPP; or 3. Provides Ecology with data indicating the discharge is not expected to cause or contribute to an exceedance of a water quality standard, and retains such data on site with the SWPPP. The operator must provide data and other technical information to Ecology that sufficiently demonstrate: a. For discharges to waters without an EPA-approved or -established TMDL, that the discharge of the pollutant for which the water is impaired will meet in-stream water quality criteria at the point of discharge to the waterbody; or b. For discharges to waters with an EPA-approved or -established TMDL, that there is sufficient remaining wasteload allocation in the TMDL to allow construction stormwater discharge and that existing dischargers to the waterbody are subject to compliance schedules designed to bring the waterbody into attainment with water quality standards. Operators of construction sites are eligible for coverage under this permit only after Ecology makes an affirmative determination that the discharge will not cause or contribute to the existing impairment or exceed the TMDL. C. Sampling and Numeric Effluent Limits for Discharges to Water Bodies on the 303(d) List for Turbidity, Fine Sediment, or Phosphorus 1. Permittees who discharge to segments of water bodies on the 303(d) list (Category 5) for turbidity, fine sediment, or phosphorus must conduct turbidity sampling in accordance with Special Condition S4.C.2 and comply with either of the numeric effluent limits noted in Table 5 below. 2. As an alternative to the 25 NTUs effluent limit noted in Table 5 below (applied at the point where stormwater [or authorized non-stormwater] is discharged off-site), Permittees may choose to comply with the surface water quality standard for turbidity. The standard is: no more than 5 NTUs over background turbidity when the background turbidity is 50 NTUs or less, or no more than a 10% increase in turbidity when the background turbidity is more than 50 NTUs. In order to use the water quality standard requirement, the sampling must take place at the following locations: a. Background turbidity in the 303(d)-listed receiving water immediately upstream (upgradient) or outside the area of influence of the discharge. b. Turbidity at the point of discharge into the 303(d)-listed receiving water, inside the area of influence of the discharge. 3. Discharges that exceed the numeric effluent limit for turbidity constitute a violation of this permit. 4. Permittees whose discharges exceed the numeric effluent limit must sample discharges daily until the violation is corrected and comply with the non-compliance notification requirements in Special Condition S5.F. Construction Stormwater General Permit Page 22 Table 5 Turbidity, Fine Sediment & Phosphorus Sampling and Limits for 303(d)-Listed Waters Parameter identified in 303(d) listing Parameter Sampled Unit Analytical Method Sampling Frequency Numeric Effluent Limit1 • Turbidity • Fine Sediment • Phosphorus Turbidity NTU SM2130 Weekly, if discharging 25 NTUs, at the point where stormwater is discharged from the site; OR In compliance with the surface water quality standard for turbidity (S8.C.2.a) 1 Permittees subject to a numeric effluent limit for turbidity may, at their discretion, choose either numeric effluent limitation based on site-specific considerations including, but not limited to, safety, access and convenience. D. Discharges to Water Bodies on the 303(d) List for High pH 1. Permittees who discharge to segments of water bodies on the 303(d) list (Category 5) for high pH must conduct pH sampling in accordance with the table below, and comply with the numeric effluent limit of pH 6.5 to 8.5 su (Table 6). Table 6 pH Sampling and Limits for 303(d)-Listed Waters Parameter identified in 303(d) listing Parameter Sampled/Units Analytical Method Sampling Frequency Numeric Effluent Limit High pH pH /Standard Units pH meter Weekly, if discharging In the range of 6.5 – 8.5 su 2. At the Permittee’s discretion, compliance with the limit shall be assessed at one of the following locations: a. Directly in the 303(d)-listed waterbody segment, inside the immediate area of influence of the discharge; or b. Alternatively, the Permittee may measure pH at the point where the discharge leaves the construction site, rather than in the receiving water. 3. Discharges that exceed the numeric effluent limit for pH (outside the range of 6.5 – 8.5 su) constitute a violation of this permit. 4. Permittees whose discharges exceed the numeric effluent limit must sample discharges daily until the violation is corrected and comply with the non-compliance notification requirements in Special Condition S5.F. E. Sampling and Limits for Sites Discharging to Waters Covered by a TMDL or another Pollution Control Plan Construction Stormwater General Permit Page 23 1. Discharges to a waterbody that is subject to a Total Maximum Daily Load (TMDL) for turbidity, fine sediment, high pH, or phosphorus must be consistent with the TMDL. Refer to http://www.ecy.wa.gov/programs/wq/tmdl/TMDLsbyWria/TMDLbyWria.html for more information on TMDLs. a. Where an applicable TMDL sets specific waste load allocations or requirements for discharges covered by this permit, discharges must be consistent with any specific waste load allocations or requirements established by the applicable TMDL. i. The Permittee must sample discharges weekly, unless otherwise specified by the TMDL, to evaluate compliance with the specific waste load allocations or requirements. ii. Analytical methods used to meet the monitoring requirements must conform to the latest revision of the Guidelines Establishing Test Procedures for the Analysis of Pollutants contained in 40 CFR Part 136. iii. Turbidity and pH methods need not be accredited or registered unless conducted at a laboratory which must otherwise be accredited or registered. b. Where an applicable TMDL has established a general waste load allocation for construction stormwater discharges, but has not identified specific requirements, compliance with Special Conditions S4 (Monitoring) and S9 (SWPPPs) will constitute compliance with the approved TMDL. c. Where an applicable TMDL has not specified a waste load allocation for construction stormwater discharges, but has not excluded these discharges, compliance with Special Conditions S4 (Monitoring) and S9 (SWPPPs) will constitute compliance with the approved TMDL. d. Where an applicable TMDL specifically precludes or prohibits discharges from construction activity, the operator is not eligible for coverage under this permit. S9. STORMWATER POLLUTION PREVENTION PLAN The Permittee must prepare and properly implement an adequate Stormwater Pollution Prevention Plan (SWPPP) for construction activity in accordance with the requirements of this permit beginning with initial soil disturbance and until final stabilization. A. The Permittee’s SWPPP must meet the following objectives: 1. To identify best management practices (BMPs) which prevent erosion and sedimentation, and to reduce, eliminate or prevent stormwater contamination and water pollution from construction activity. 2. To prevent violations of surface water quality, groundwater quality, or sediment management standards. 3. To control peak volumetric flow rates and velocities of stormwater discharges. Construction Stormwater General Permit Page 24 B. General Requirements 1. The SWPPP must include a narrative and drawings. All BMPs must be clearly referenced in the narrative and marked on the drawings. The SWPPP narrative must include documentation to explain and justify the pollution prevention decisions made for the project. Documentation must include: a. Information about existing site conditions (topography, drainage, soils, vegetation, etc.). b. Potential erosion problem areas. c. The 13 elements of a SWPPP in Special Condition S9.D.1-13, including BMPs used to address each element. d. Construction phasing/sequence and general BMP implementation schedule. e. The actions to be taken if BMP performance goals are not achieved—for example, a contingency plan for additional treatment and/or storage of stormwater that would violate the water quality standards if discharged. f. Engineering calculations for ponds, treatment systems, and any other designed structures. When a treatment system requires engineering calculations, these calculations must be included in the SWPPP. Engineering calculations do not need to be included in the SWPPP for treatment systems that do not require such calculations. 2. The Permittee must modify the SWPPP if, during inspections or investigations conducted by the owner/operator, or the applicable local or state regulatory authority, it is determined that the SWPPP is, or would be, ineffective in eliminating or significantly minimizing pollutants in stormwater discharges from the site. The Permittee must then: a. Review the SWPPP for compliance with Special Condition S9 and make appropriate revisions within 7 days of the inspection or investigation. b. Immediately begin the process to fully implement and maintain appropriate source control and/or treatment BMPs as soon as possible, addressing the problems no later than 10 days from the inspection or investigation. If installation of necessary treatment BMPs is not feasible within 10 days, Ecology may approve additional time when an extension is requested by a Permittee within the initial 10-day response period. c. Document BMP implementation and maintenance in the site log book. The Permittee must modify the SWPPP whenever there is a change in design, construction, operation, or maintenance at the construction site that has, or could have, a significant effect on the discharge of pollutants to waters of the State. C. Stormwater Best Management Practices (BMPs) BMPs must be consistent with: 1. Stormwater Management Manual for Western Washington (most current approved edition at the time this permit was issued), for sites west of the crest of the Cascade Mountains; or Construction Stormwater General Permit Page 25 2. Stormwater Management Manual for Eastern Washington (most current approved edition at the time this permit was issued), for sites east of the crest of the Cascade Mountains; or 3. Revisions to the manuals listed in Special Condition S9.C.1 & 2, or other stormwater management guidance documents or manuals which provide an equivalent level of pollution prevention, that are approved by Ecology and incorporated into this permit in accordance with the permit modification requirements of WAC 173-226-230; or 4. Documentation in the SWPPP that the BMPs selected provide an equivalent level of pollution prevention, compared to the applicable stormwater management manuals, including: a. The technical basis for the selection of all stormwater BMPs (scientific, technical studies, and/or modeling) that support the performance claims for the BMPs being selected. b. An assessment of how the selected BMP will satisfy AKART requirements and the applicable federal technology-based treatment requirements under 40 CFR part 125.3. D. SWPPP – Narrative Contents and Requirements The Permittee must include each of the 13 elements below in Special Condition S9.D.1-13 in the narrative of the SWPPP and implement them unless site conditions render the element unnecessary and the exemption from that element is clearly justified in the SWPPP. 1. Preserve Vegetation/Mark Clearing Limits a. Before beginning land-disturbing activities, including clearing and grading, clearly mark all clearing limits, sensitive areas and their buffers, and trees that are to be preserved within the construction area. b. Retain the duff layer, native topsoil, and natural vegetation in an undisturbed state to the maximum degree practicable. 2. Establish Construction Access a. Limit construction vehicle access and exit to one route, if possible. b. Stabilize access points with a pad of quarry spalls, crushed rock, or other equivalent BMPs, to minimize tracking sediment onto roads. c. Locate wheel wash or tire baths on site, if the stabilized construction entrance is not effective in preventing tracking sediment onto roads. d. If sediment is tracked off site, clean the affected roadway thoroughly at the end of each day, or more frequently as necessary (for example, during wet weather). Remove sediment from roads by shoveling, sweeping, or pickup and transport of the sediment to a controlled sediment disposal area. e. Conduct street washing only after sediment removal in accordance with Special Condition S9.D.2.d. f. Control street wash wastewater by pumping back on site or otherwise preventing it from discharging into systems tributary to waters of the State. Construction Stormwater General Permit Page 26 3. Control Flow Rates a. Protect properties and waterways downstream of construction sites from erosion and the associated discharge of turbid waters due to increases in the velocity and peak volumetric flow rate of stormwater runoff from the project site, as required by local plan approval authority. b. Where necessary to comply with Special Condition S9.D.3.a, construct stormwater infiltration or detention BMPs as one of the first steps in grading. Assure that detention BMPs function properly before constructing site improvements (for example, impervious surfaces). c. If permanent infiltration ponds are used for flow control during construction, protect these facilities from sedimentation during the construction phase. 4. Install Sediment Controls The Permittee must design, install and maintain effective erosion controls and sediment controls to minimize the discharge of pollutants. At a minimum, the Permittee must: a. Construct sediment control BMPs (sediment ponds, traps, filters, infiltration facilities, etc.) as one of the first steps in grading. These BMPs must be functional before other land disturbing activities take place. b. Minimize sediment discharges from the site. The design, installation and maintenance of erosion and sediment controls must address factors such as the amount, frequency, intensity and duration of precipitation, the nature of resulting stormwater runoff, and soil characteristics, including the range of soil particle sizes expected to be present on the site. c. Direct stormwater runoff from disturbed areas through a sediment pond or other appropriate sediment removal BMP, before the runoff leaves a construction site or before discharge to an infiltration facility. Runoff from fully stabilized areas may be discharged without a sediment removal BMP, but must meet the flow control performance standard of Special Condition S9.D.3.a. d. Locate BMPs intended to trap sediment on site in a manner to avoid interference with the movement of juvenile salmonids attempting to enter off-channel areas or drainages. e. Provide and maintain natural buffers around surface waters, direct stormwater to vegetated areas to increase sediment removal and maximize stormwater infiltration, unless infeasible. f. Where feasible, design outlet structures that withdraw impounded stormwater from the surface to avoid discharging sediment that is still suspended lower in the water column. 5. Stabilize Soils a. The Permittee must stabilize exposed and unworked soils by application of effective BMPs that prevent erosion. Applicable BMPs include, but are not limited to: temporary and permanent seeding, sodding, mulching, plastic covering, erosion Construction Stormwater General Permit Page 27 control fabrics and matting, soil application of polyacrylamide (PAM), the early application of gravel base on areas to be paved, and dust control. b. The Permittee must control stormwater volume and velocity within the site to minimize soil erosion. c. The Permittee must control stormwater discharges, including both peak flow rates and total stormwater volume, to minimize erosion at outlets and to minimize downstream channel and stream bank erosion. d. Depending on the geographic location of the project, the Permittee must not allow soils to remain exposed and unworked for more than the time periods set forth below to prevent erosion. West of the Cascade Mountains Crest During the dry season (May 1 - September 30): 7 days During the wet season (October 1 - April 30): 2 days East of the Cascade Mountains Crest, except for Central Basin* During the dry season (July 1 - September 30): 10 days During the wet season (October 1 - June 30): 5 days The Central Basin*, East of the Cascade Mountains Crest During the dry Season (July 1 - September 30): 30 days During the wet season (October 1 - June 30): 15 days *Note: The Central Basin is defined as the portions of Eastern Washington with mean annual precipitation of less than 12 inches. e. The Permittee must stabilize soils at the end of the shift before a holiday or weekend if needed based on the weather forecast. f. The Permittee must stabilize soil stockpiles from erosion, protected with sediment trapping measures, and where possible, be located away from storm drain inlets, waterways, and drainage channels. g. The Permittee must minimize the amount of soil exposed during construction activity. h. The Permittee must minimize the disturbance of steep slopes. i. The Permittee must minimize soil compaction and, unless infeasible, preserve topsoil. 6. Protect Slopes a. The Permittee must design and construct cut-and-fill slopes in a manner to minimize erosion. Applicable practices include, but are not limited to, reducing continuous length of slope with terracing and diversions, reducing slope steepness, and roughening slope surfaces (for example, track walking). b. The Permittee must divert off-site stormwater (run-on) or groundwater away from slopes and disturbed areas with interceptor dikes, pipes, and/or swales. Off-site stormwater should be managed separately from stormwater generated on the site. c. At the top of slopes, collect drainage in pipe slope drains or protected channels to prevent erosion. Construction Stormwater General Permit Page 28 i. West of the Cascade Mountains Crest: Temporary pipe slope drains must handle the peak 10-minute flow rate from a Type 1A, 10-year, 24-hour frequency storm for the developed condition. Alternatively, the 10-year, 1-hour flow rate predicted by an approved continuous runoff model, increased by a factor of 1.6, may be used. The hydrologic analysis must use the existing land cover condition for predicting flow rates from tributary areas outside the project limits. For tributary areas on the project site, the analysis must use the temporary or permanent project land cover condition, whichever will produce the highest flow rates. If using the Western Washington Hydrology Model (WWHM) to predict flows, bare soil areas should be modeled as "landscaped area.” ii. East of the Cascade Mountains Crest: Temporary pipe slope drains must handle the expected peak flow rate from a 6-month, 3-hour storm for the developed condition, referred to as the short duration storm. d. Place excavated material on the uphill side of trenches, consistent with safety and space considerations. e. Place check dams at regular intervals within constructed channels that are cut down a slope. 7. Protect Drain Inlets a. Protect all storm drain inlets made operable during construction so that stormwater runoff does not enter the conveyance system without first being filtered or treated to remove sediment. b. Clean or remove and replace inlet protection devices when sediment has filled one- third of the available storage (unless a different standard is specified by the product manufacturer). 8. Stabilize Channels and Outlets a. Design, construct and stabilize all on-site conveyance channels to prevent erosion from the following expected peak flows: i. West of the Cascade Mountains Crest: Channels must handle the peak 10- minute flow rate from a Type 1A, 10-year, 24-hour frequency storm for the developed condition. Alternatively, the 10-year, 1-hour flow rate indicated by an approved continuous runoff model, increased by a factor of 1.6, may be used. The hydrologic analysis must use the existing land cover condition for predicting flow rates from tributary areas outside the project limits. For tributary areas on the project site, the analysis must use the temporary or permanent project land cover condition, whichever will produce the highest flow rates. If using the WWHM to predict flows, bare soil areas should be modeled as "landscaped area.” ii. East of the Cascade Mountains Crest: Channels must handle the expected peak flow rate from a 6-month, 3-hour storm for the developed condition, referred to as the short duration storm. b. Provide stabilization, including armoring material, adequate to prevent erosion of outlets, adjacent stream banks, slopes, and downstream reaches at the outlets of all conveyance systems. Construction Stormwater General Permit Page 29 9. Control Pollutants Design, install, implement and maintain effective pollution prevention measures to minimize the discharge of pollutants. The Permittee must: a. Handle and dispose of all pollutants, including waste materials and demolition debris that occur on site in a manner that does not cause contamination of stormwater. b. Provide cover, containment, and protection from vandalism for all chemicals, liquid products, petroleum products, and other materials that have the potential to pose a threat to human health or the environment. Minimize storage of hazardous materials on-site. Safety Data Sheets (SDS) should be supplied for all materials stored. Chemicals should be kept in their original labeled containers. On-site fueling tanks must include secondary containment. Secondary containment means placing tanks or containers within an impervious structure capable of containing 110% of the volume of the largest tank within the containment structure. Double-walled tanks do not require additional secondary containment. c. Conduct maintenance, fueling, and repair of heavy equipment and vehicles using spill prevention and control measures. Clean contaminated surfaces immediately following any spill incident. d. Discharge wheel wash or tire bath wastewater to a separate on-site treatment system that prevents discharge to surface water, such as closed-loop recirculation or upland land application, or to the sanitary sewer with local sewer district approval. e. Apply fertilizers and pesticides in a manner and at application rates that will not result in loss of chemical to stormwater runoff. Follow manufacturers’ label requirements for application rates and procedures. f. Use BMPs to prevent contamination of stormwater runoff by pH-modifying sources. The sources for this contamination include, but are not limited to: bulk cement, cement kiln dust, fly ash, new concrete washing and curing waters, recycled concrete stockpiles, waste streams generated from concrete grinding and sawing, exposed aggregate processes, dewatering concrete vaults, concrete pumping and mixer washout waters. (Also refer to the definition for "concrete wastewater" in Appendix A – Definitions.) g. Adjust the pH of stormwater or authorized non-stormwater if necessary to prevent an exceedance of groundwater and/or surface water quality standards. h. Assure that washout of concrete trucks is performed off-site or in designated concrete washout areas only. Do not wash out concrete truck drums onto the ground, or into storm drains, open ditches, streets, or streams. Washout of small concrete handling equipment may be disposed of in a formed area awaiting concrete where it will not contaminate surface or groundwater. Do not dump excess concrete on site, except in designated concrete washout areas. Concrete spillage or concrete discharge directly to groundwater or surface waters of the State is Construction Stormwater General Permit Page 30 prohibited. At no time shall concrete be washed off into the footprint of an area where an infiltration BMP will be installed. i. Obtain written approval from Ecology before using any chemical treatment, with the exception of CO2, dry ice or food grade vinegar, to adjust pH. j. Uncontaminated water from water-only based shaft drilling for construction of building, road, and bridge foundations may be infiltrated provided the wastewater is managed in a way that prohibits discharge to surface waters. Prior to infiltration, water from water-only based shaft drilling that comes into contact with curing concrete must be neutralized until pH is in the range of 6.5 to 8.5 (su). 10. Control Dewatering a. Permittees must discharge foundation, vault, and trench dewatering water, which have characteristics similar to stormwater runoff at the site, in conjunction with BMPs to reduce sedimentation before discharge to a sediment trap or sediment pond. b. Permittees may discharge clean, non-turbid dewatering water, such as well-point groundwater, to systems tributary to, or directly into surface waters of the State, as specified in Special Condition S9.D.8, provided the dewatering flow does not cause erosion or flooding of receiving waters. Do not route clean dewatering water through stormwater sediment ponds. Note that “surface waters of the State” may exist on a construction site as well as off site; for example, a creek running through a site. c. Other dewatering treatment or disposal options may include: i. Infiltration ii. Transport off site in a vehicle, such as a vacuum flush truck, for legal disposal in a manner that does not pollute state waters. iii. Ecology-approved on-site chemical treatment or other suitable treatment technologies (See S9.D.9.i, regarding chemical treatment written approval). iv. Sanitary or combined sewer discharge with local sewer district approval, if there is no other option. v. Use of a sedimentation bag with discharge to a ditch or swale for small volumes of localized dewatering. d. Permittees must handle highly turbid or contaminated dewatering water separately from stormwater. 11. Maintain BMPs a. Permittees must maintain and repair all temporary and permanent erosion and sediment control BMPs as needed to assure continued performance of their intended function in accordance with BMP specifications. b. Permittees must remove all temporary erosion and sediment control BMPs within 30 days after achieving final site stabilization or after the temporary BMPs are no longer needed. Construction Stormwater General Permit Page 31 12. Manage the Project a. Phase development projects to the maximum degree practicable and take into account seasonal work limitations. b. Inspect, maintain and repair all BMPs as needed to assure continued performance of their intended function. Conduct site inspections and monitoring in accordance with Special Condition S4. c. Maintain, update, and implement the SWPPP in accordance with Special Conditions S3, S4, and S9. 13. Protect Low Impact Development (LID) BMPs The primary purpose of on-site LID Stormwater Management is to reduce the disruption of the natural site hydrology through infiltration. LID BMPs are permanent facilities. a. Permittees must protect all LID BMPs (including, but not limited to, Bioretention and Rain Garden facilities) from sedimentation through installation and maintenance of erosion and sediment control BMPs on portions of the site that drain into the Bioretention and/or Rain Garden facilities. Restore the BMPs to their fully functioning condition if they accumulate sediment during construction. Restoring the facility must include removal of sediment and any sediment-laden bioretention/ rain garden soils, and replacing the removed soils with soils meeting the design specification. b. Permittees must maintain the infiltration capabilities of LID BMPs by protecting against compaction by construction equipment and foot traffic. Protect completed lawn and landscaped areas from compaction due to construction equipment. c. Permittees must control erosion and avoid introducing sediment from surrounding land uses onto permeable pavements. Do not allow muddy construction equipment on the base material or pavement. Do not allow sediment-laden runoff onto permeable pavements or base materials. d. Permittees must clean permeable pavements fouled with sediments or no longer passing an initial infiltration test using local stormwater manual methodology or the manufacturer’s procedures. e. Permittees must keep all heavy equipment off existing soils under LID BMPs that have been excavated to final grade to retain the infiltration rate of the soils. E. SWPPP – Map Contents and Requirements The Permittee’s SWPPP must also include a vicinity map or general location map (for example, a USGS quadrangle map, a portion of a county or city map, or other appropriate map) with enough detail to identify the location of the construction site and receiving waters within one mile of the site. The SWPPP must also include a legible site map (or maps) showing the entire construction site. The following features must be identified, unless not applicable due to site conditions. 1. The direction of north, property lines, and existing structures and roads. 2. Cut and fill slopes indicating the top and bottom of slope catch lines. Construction Stormwater General Permit Page 32 3. Approximate slopes, contours, and direction of stormwater flow before and after major grading activities. 4. Areas of soil disturbance and areas that will not be disturbed. 5. Locations of structural and nonstructural controls (BMPs) identified in the SWPPP. 6. Locations of off-site material, stockpiles, waste storage, borrow areas, and vehicle/equipment storage areas. 7. Locations of all surface water bodies, including wetlands. 8. Locations where stormwater or non-stormwater discharges off-site and/or to a surface waterbody, including wetlands. 9. Location of water quality sampling station(s), if sampling is required by state or local permitting authority. 10. Areas where final stabilization has been accomplished and no further construction-phase permit requirements apply. 11. Location or proposed location of LID facilities. S10. NOTICE OF TERMINATION Partial terminations of permit coverage are not authorized. A. The site is eligible for termination of coverage when it has met any of the following conditions: 1. The site has undergone final stabilization, the Permittee has removed all temporary BMPs (except biodegradable BMPs clearly manufactured with the intention for the material to be left in place and not interfere with maintenance or land use), and all stormwater discharges associated with construction activity have been eliminated; or 2. All portions of the site that have not undergone final stabilization per Special Condition S10.A.1 have been sold and/or transferred (per Special Condition S2.A), and the Permittee no longer has operational control of the construction activity; or 3. For residential construction only, the Permittee has completed temporary stabilization and the homeowners have taken possession of the residences. B. When the site is eligible for termination, the Permittee must submit a complete and accurate Notice of Termination (NOT) form, signed in accordance with General Condition G2, to: Department of Ecology Water Quality Program - Construction Stormwater PO Box 47696 Olympia, WA 98504-7696 Construction Stormwater General Permit Page 33 When an electronic termination form is available, the Permittee may choose to submit a complete and accurate Notice of Termination (NOT) form through the Water Quality Permitting Portal rather than mailing a hardcopy as noted above. The termination is effective on the 31st calendar day following the date Ecology receives a complete NOT form, unless Ecology notifies the Permittee that termination request is denied because the Permittee has not met the eligibility requirements in Special Condition S10.A. Permittees are required to comply with all conditions and effluent limitations in the permit until the permit has been terminated. Permittees transferring the property to a new property owner or operator/Permittee are required to complete and submit the Notice of Transfer form to Ecology, but are not required to submit a Notice of Termination form for this type of transaction. Construction Stormwater General Permit Page 34 GENERAL CONDITIONS G1. DISCHARGE VIOLATIONS All discharges and activities authorized by this general permit must be consistent with the terms and conditions of this general permit. Any discharge of any pollutant more frequent than or at a level in excess of that identified and authorized by the general permit must constitute a violation of the terms and conditions of this permit. G2. SIGNATORY REQUIREMENTS A. All permit applications must bear a certification of correctness to be signed: 1. In the case of corporations, by a responsible corporate officer. 2. In the case of a partnership, by a general partner of a partnership. 3. In the case of sole proprietorship, by the proprietor. 4. In the case of a municipal, state, or other public facility, by either a principal executive officer or ranking elected official. B. All reports required by this permit and other information requested by Ecology (including NOIs, NOTs, and Transfer of Coverage forms) must be signed by a person described above or by a duly authorized representative of that person. A person is a duly authorized representative only if: 1. The authorization is made in writing by a person described above and submitted to Ecology. 2. The authorization specifies either an individual or a position having responsibility for the overall operation of the regulated facility, such as the position of plant manager, superintendent, position of equivalent responsibility, or an individual or position having overall responsibility for environmental matters. C. Changes to authorization. If an authorization under paragraph G2.B.2 above is no longer accurate because a different individual or position has responsibility for the overall operation of the facility, a new authorization satisfying the requirements of paragraph G2.B.2 above must be submitted to Ecology prior to or together with any reports, information, or applications to be signed by an authorized representative. D. Certification. Any person signing a document under this section must make the following certification: I certify under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations. Construction Stormwater General Permit Page 35 G3. RIGHT OF INSPECTION AND ENTRY The Permittee must allow an authorized representative of Ecology, upon the presentation of credentials and such other documents as may be required by law: A. To enter upon the premises where a discharge is located or where any records are kept under the terms and conditions of this permit. B. To have access to and copy, at reasonable times and at reasonable cost, any records required to be kept under the terms and conditions of this permit. C. To inspect, at reasonable times, any facilities, equipment (including monitoring and control equipment), practices, methods, or operations regulated or required under this permit. D. To sample or monitor, at reasonable times, any substances or parameters at any location for purposes of assuring permit compliance or as otherwise authorized by the Clean Water Act. G4. GENERAL PERMIT MODIFICATION AND REVOCATION This permit may be modified, revoked and reissued, or terminated in accordance with the provisions of Chapter 173-226 WAC. Grounds for modification, revocation and reissuance, or termination include, but are not limited to, the following: A. When a change occurs in the technology or practices for control or abatement of pollutants applicable to the category of dischargers covered under this permit. B. When effluent limitation guidelines or standards are promulgated pursuant to the CWA or Chapter 90.48 RCW, for the category of dischargers covered under this permit. C. When a water quality management plan containing requirements applicable to the category of dischargers covered under this permit is approved, or D. When information is obtained that indicates cumulative effects on the environment from dischargers covered under this permit are unacceptable. G5. REVOCATION OF COVERAGE UNDER THE PERMIT Pursuant to Chapter 43.21B RCW and Chapter 173-226 WAC, the Director may terminate coverage for any discharger under this permit for cause. Cases where coverage may be terminated include, but are not limited to, the following: A. Violation of any term or condition of this permit. B. Obtaining coverage under this permit by misrepresentation or failure to disclose fully all relevant facts. C. A change in any condition that requires either a temporary or permanent reduction or elimination of the permitted discharge. D. Failure or refusal of the Permittee to allow entry as required in RCW 90.48.090. E. A determination that the permitted activity endangers human health or the environment, or contributes to water quality standards violations. F. Nonpayment of permit fees or penalties assessed pursuant to RCW 90.48.465 and Chapter 173-224 WAC. Construction Stormwater General Permit Page 36 G. Failure of the Permittee to satisfy the public notice requirements of WAC 173-226-130(5), when applicable. The Director may require any discharger under this permit to apply for and obtain coverage under an individual permit or another more specific general permit. Permittees who have their coverage revoked for cause according to WAC 173-226-240 may request temporary coverage under this permit during the time an individual permit is being developed, provided the request is made within ninety (90) days from the time of revocation and is submitted along with a complete individual permit application form. G6. REPORTING A CAUSE FOR MODIFICATION The Permittee must submit a new application, or a supplement to the previous application, whenever a material change to the construction activity or in the quantity or type of discharge is anticipated which is not specifically authorized by this permit. This application must be submitted at least sixty (60) days prior to any proposed changes. Filing a request for a permit modification, revocation and reissuance, or termination, or a notification of planned changes or anticipated noncompliance does not relieve the Permittee of the duty to comply with the existing permit until it is modified or reissued. G7. COMPLIANCE WITH OTHER LAWS AND STATUTES Nothing in this permit will be construed as excusing the Permittee from compliance with any applicable federal, state, or local statutes, ordinances, or regulations. G8. DUTY TO REAPPLY The Permittee must apply for permit renewal at least 180 days prior to the specified expiration date of this permit. The Permittee must reapply using the electronic application form (NOI) available on Ecology’s website. Permittees unable to submit electronically (for example, those who do not have an internet connection) must contact Ecology to request a waiver and obtain instructions on how to obtain a paper NOI. Department of Ecology Water Quality Program - Construction Stormwater PO Box 47696 Olympia, WA 98504-7696 G9. REMOVED SUBSTANCE The Permittee must not re-suspend or reintroduce collected screenings, grit, solids, sludges, filter backwash, or other pollutants removed in the course of treatment or control of stormwater to the final effluent stream for discharge to state waters. G10. DUTY TO PROVIDE INFORMATION The Permittee must submit to Ecology, within a reasonable time, all information that Ecology may request to determine whether cause exists for modifying, revoking and reissuing, or terminating this permit or to determine compliance with this permit. The Permittee must also submit to Ecology, upon request, copies of records required to be kept by this permit [40 CFR 122.41(h)]. Construction Stormwater General Permit Page 37 G11. OTHER REQUIREMENTS OF 40 CFR All other requirements of 40 CFR 122.41 and 122.42 are incorporated in this permit by reference. G12. ADDITIONAL MONITORING Ecology may establish specific monitoring requirements in addition to those contained in this permit by administrative order or permit modification. G13. PENALTIES FOR VIOLATING PERMIT CONDITIONS Any person who is found guilty of willfully violating the terms and conditions of this permit shall be deemed guilty of a crime, and upon conviction thereof shall be punished by a fine of up to ten thousand dollars ($10,000) and costs of prosecution, or by imprisonment at the discretion of the court. Each day upon which a willful violation occurs may be deemed a separate and additional violation. Any person who violates the terms and conditions of a waste discharge permit shall incur, in addition to any other penalty as provided by law, a civil penalty in the amount of up to ten thousand dollars ($10,000) for every such violation. Each and every such violation shall be a separate and distinct offense, and in case of a continuing violation, every day’s continuance shall be deemed to be a separate and distinct violation. G14. UPSET Definition – “Upset” means an exceptional incident in which there is unintentional and temporary noncompliance with technology-based permit effluent limitations because of factors beyond the reasonable control of the Permittee. An upset does not include noncompliance to the extent caused by operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventive maintenance, or careless or improper operation. An upset constitutes an affirmative defense to an action brought for noncompliance with such technology-based permit effluent limitations if the requirements of the following paragraph are met. A Permittee who wishes to establish the affirmative defense of upset must demonstrate, through properly signed, contemporaneous operating logs or other relevant evidence that: 1) an upset occurred and that the Permittee can identify the cause(s) of the upset; 2) the permitted facility was being properly operated at the time of the upset; 3) the Permittee submitted notice of the upset as required in Special Condition S5.F, and; 4) the Permittee complied with any remedial measures required under this permit. In any enforcement proceeding, the Permittee seeking to establish the occurrence of an upset has the burden of proof. G15. PROPERTY RIGHTS This permit does not convey any property rights of any sort, or any exclusive privilege. G16. DUTY TO COMPLY The Permittee must comply with all conditions of this permit. Any permit noncompliance constitutes a violation of the Clean Water Act and is grounds for enforcement action; for permit termination, revocation and reissuance, or modification; or denial of a permit renewal application. Construction Stormwater General Permit Page 38 G17. TOXIC POLLUTANTS The Permittee must comply with effluent standards or prohibitions established under Section 307(a) of the Clean Water Act for toxic pollutants within the time provided in the regulations that establish those standards or prohibitions, even if this permit has not yet been modified to incorporate the requirement. G18. PENALTIES FOR TAMPERING The Clean Water Act provides that any person who falsifies, tampers with, or knowingly renders inaccurate any monitoring device or method required to be maintained under this permit shall, upon conviction, be punished by a fine of not more than $10,000 per violation, or by imprisonment for not more than two years per violation, or by both. If a conviction of a person is for a violation committed after a first conviction of such person under this condition, punishment shall be a fine of not more than $20,000 per day of violation, or imprisonment of not more than four (4) years, or both. G19. REPORTING PLANNED CHANGES The Permittee must, as soon as possible, give notice to Ecology of planned physical alterations, modifications or additions to the permitted construction activity. The Permittee should be aware that, depending on the nature and size of the changes to the original permit, a new public notice and other permit process requirements may be required. Changes in activities that require reporting to Ecology include those that will result in: A. The permitted facility being determined to be a new source pursuant to 40 CFR 122.29(b). B. A significant change in the nature or an increase in quantity of pollutants discharged, including but not limited to: a 20% or greater increase in acreage disturbed by construction activity. C. A change in or addition of surface water(s) receiving stormwater or non-stormwater from the construction activity. D. A change in the construction plans and/or activity that affects the Permittee’s monitoring requirements in Special Condition S4. Following such notice, permit coverage may be modified, or revoked and reissued pursuant to 40 CFR 122.62(a) to specify and limit any pollutants not previously limited. Until such modification is effective, any new or increased discharge in excess of permit limits or not specifically authorized by this permit constitutes a violation. G20. REPORTING OTHER INFORMATION Where the Permittee becomes aware that it failed to submit any relevant facts in a permit application, or submitted incorrect information in a permit application or in any report to Ecology, it must promptly submit such facts or information. G21. REPORTING ANTICIPATED NON-COMPLIANCE The Permittee must give advance notice to Ecology by submission of a new application or supplement thereto at least forty-five (45) days prior to commencement of such discharges, of any facility expansions, production increases, or other planned changes, such as process modifications, in the permitted facility or activity which may result in noncompliance with permit limits or conditions. Any maintenance of facilities, which might necessitate unavoidable interruption of Construction Stormwater General Permit Page 39 operation and degradation of effluent quality, must be scheduled during non-critical water quality periods and carried out in a manner approved by Ecology. G22. REQUESTS TO BE EXCLUDED FROM COVERAGE UNDER THE PERMIT Any discharger authorized by this permit may request to be excluded from coverage under the general permit by applying for an individual permit. The discharger must submit to the Director an application as described in WAC 173-220-040 or WAC 173-216-070, whichever is applicable, with reasons supporting the request. These reasons will fully document how an individual permit will apply to the applicant in a way that the general permit cannot. Ecology may make specific requests for information to support the request. The Director will either issue an individual permit or deny the request with a statement explaining the reason for the denial. When an individual permit is issued to a discharger otherwise subject to the construction stormwater general permit, the applicability of the construction stormwater general permit to that Permittee is automatically terminated on the effective date of the individual permit. G23. APPEALS A. The terms and conditions of this general permit, as they apply to the appropriate class of dischargers, are subject to appeal by any person within 30 days of issuance of this general permit, in accordance with Chapter 43.21B RCW, and Chapter 173-226 WAC. B. The terms and conditions of this general permit, as they apply to an individual discharger, are appealable in accordance with Chapter 43.21B RCW within 30 days of the effective date of coverage of that discharger. Consideration of an appeal of general permit coverage of an individual discharger is limited to the general permit’s applicability or nonapplicability to that individual discharger. C. The appeal of general permit coverage of an individual discharger does not affect any other dischargers covered under this general permit. If the terms and conditions of this general permit are found to be inapplicable to any individual discharger(s), the matter shall be remanded to Ecology for consideration of issuance of an individual permit or permits. G24. SEVERABILITY The provisions of this permit are severable, and if any provision of this permit, or application of any provision of this permit to any circumstance, is held invalid, the application of such provision to other circumstances, and the remainder of this permit shall not be affected thereby. G25. BYPASS PROHIBITED A. Bypass Procedures Bypass, which is the intentional diversion of waste streams from any portion of a treatment facility, is prohibited for stormwater events below the design criteria for stormwater management. Ecology may take enforcement action against a Permittee for bypass unless one of the following circumstances (1, 2, 3 or 4) is applicable. 1. Bypass of stormwater is consistent with the design criteria and part of an approved management practice in the applicable stormwater management manual. 2. Bypass for essential maintenance without the potential to cause violation of permit limits or conditions. Construction Stormwater General Permit Page 40 Bypass is authorized if it is for essential maintenance and does not have the potential to cause violations of limitations or other conditions of this permit, or adversely impact public health. 3. Bypass of stormwater is unavoidable, unanticipated, and results in noncompliance of this permit. This bypass is permitted only if: a. Bypass is unavoidable to prevent loss of life, personal injury, or severe property damage. “Severe property damage” means substantial physical damage to property, damage to the treatment facilities which would cause them to become inoperable, or substantial and permanent loss of natural resources which can reasonably be expected to occur in the absence of a bypass. b. There are no feasible alternatives to the bypass, such as the use of auxiliary treatment facilities, retention of untreated wastes, maintenance during normal periods of equipment downtime (but not if adequate backup equipment should have been installed in the exercise of reasonable engineering judgment to prevent a bypass which occurred during normal periods of equipment downtime or preventative maintenance), or transport of untreated wastes to another treatment facility. c. Ecology is properly notified of the bypass as required in Special Condition S5.F of this permit. 4. A planned action that would cause bypass of stormwater and has the potential to result in noncompliance of this permit during a storm event. The Permittee must notify Ecology at least thirty (30) days before the planned date of bypass. The notice must contain: a. A description of the bypass and its cause b. An analysis of all known alternatives which would eliminate, reduce, or mitigate the need for bypassing. c. A cost-effectiveness analysis of alternatives including comparative resource damage assessment. d. The minimum and maximum duration of bypass under each alternative. e. A recommendation as to the preferred alternative for conducting the bypass. f. The projected date of bypass initiation. g. A statement of compliance with SEPA. h. A request for modification of water quality standards as provided for in WAC 173- 201A-110, if an exceedance of any water quality standard is anticipated. i. Steps taken or planned to reduce, eliminate, and prevent reoccurrence of the bypass. 5. For probable construction bypasses, the need to bypass is to be identified as early in the planning process as possible. The analysis required above must be considered during Construction Stormwater General Permit Page 41 preparation of the Stormwater Pollution Prevention Plan (SWPPP) and must be included to the extent practical. In cases where the probable need to bypass is determined early, continued analysis is necessary up to and including the construction period in an effort to minimize or eliminate the bypass. Ecology will consider the following before issuing an administrative order for this type bypass: a. If the bypass is necessary to perform construction or maintenance-related activities essential to meet the requirements of this permit. b. If there are feasible alternatives to bypass, such as the use of auxiliary treatment facilities, retention of untreated wastes, stopping production, maintenance during normal periods of equipment down time, or transport of untreated wastes to another treatment facility. c. If the bypass is planned and scheduled to minimize adverse effects on the public and the environment. After consideration of the above and the adverse effects of the proposed bypass and any other relevant factors, Ecology will approve, conditionally approve, or deny the request. The public must be notified and given an opportunity to comment on bypass incidents of significant duration, to the extent feasible. Approval of a request to bypass will be by administrative order issued by Ecology under RCW 90.48.120. B. Duty to Mitigate The Permittee is required to take all reasonable steps to minimize or prevent any discharge or sludge use or disposal in violation of this permit that has a reasonable likelihood of adversely affecting human health or the environment. Construction Stormwater General Permit Page 42 APPENDIX A – DEFINITIONS AKART is an acronym for “All Known, Available, and Reasonable methods of prevention, control, and Treatment.” AKART represents the most current methodology that can be reasonably required for preventing, controlling, or abating the pollutants and controlling pollution associated with a discharge. Applicable TMDL means a TMDL for turbidity, fine sediment, high pH, or phosphorus, which was completed and approved by EPA before January 1, 2021, or before the date the operator’s complete permit application is received by Ecology, whichever is later. TMDLs completed after a complete permit application is received by Ecology become applicable to the Permittee only if they are imposed through an administrative order by Ecology, or through a modification of permit coverage. Applicant means an operator seeking coverage under this permit. Benchmark means a pollutant concentration used as a permit threshold, below which a pollutant is considered unlikely to cause a water quality violation, and above which it may. When pollutant concentrations exceed benchmarks, corrective action requirements take effect. Benchmark values are not water quality standards and are not numeric effluent limitations; they are indicator values. Best Management Practices (BMPs) means schedules of activities, prohibitions of practices, maintenance procedures, and other physical, structural and/or managerial practices to prevent or reduce the pollution of waters of the State. BMPs include treatment systems, operating procedures, and practices to control stormwater associated with construction activity, spillage or leaks, sludge or waste disposal, or drainage from raw material storage. Buffer means an area designated by a local jurisdiction that is contiguous to and intended to protect a sensitive area. Bypass means the intentional diversion of waste streams from any portion of a treatment facility. Calendar Day A period of 24 consecutive hours starting at 12:00 midnight and ending the following 12:00 midnight. Calendar Week (same as Week) means a period of seven consecutive days starting at 12:01 a.m. (0:01 hours) on Sunday. Certified Erosion and Sediment Control Lead (CESCL) means a person who has current certification through an approved erosion and sediment control training program that meets the minimum training standards established by Ecology (See BMP C160 in the SWMM). Chemical Treatment means the addition of chemicals to stormwater and/or authorized non-stormwater prior to filtration and discharge to surface waters. Clean Water Act (CWA) means the Federal Water Pollution Control Act enacted by Public Law 92-500, as amended by Public Laws 95-217, 95-576, 96-483, and 97-117; USC 1251 et seq. Combined Sewer means a sewer which has been designed to serve as a sanitary sewer and a storm sewer, and into which inflow is allowed by local ordinance. Construction Stormwater General Permit Page 43 Common Plan of Development or Sale means a site where multiple separate and distinct construction activities may be taking place at different times on different schedules and/or by different contractors, but still under a single plan. Examples include: 1) phased projects and projects with multiple filings or lots, even if the separate phases or filings/lots will be constructed under separate contract or by separate owners (e.g., a development where lots are sold to separate builders); 2) a development plan that may be phased over multiple years, but is still under a consistent plan for long-term development; 3) projects in a contiguous area that may be unrelated but still under the same contract, such as construction of a building extension and a new parking lot at the same facility; and 4) linear projects such as roads, pipelines, or utilities. If the project is part of a common plan of development or sale, the disturbed area of the entire plan must be used in determining permit requirements. Composite Sample means a mixture of grab samples collected at the same sampling point at different times, formed either by continuous sampling or by mixing discrete samples. May be "time-composite" (collected at constant time intervals) or "flow-proportional" (collected either as a constant sample volume at time intervals proportional to stream flow, or collected by increasing the volume of each aliquot as the flow increases while maintaining a constant time interval between the aliquots. Concrete Wastewater means any water used in the production, pouring and/or clean-up of concrete or concrete products, and any water used to cut, grind, wash, or otherwise modify concrete or concrete products. Examples include water used for or resulting from concrete truck/mixer/pumper/tool/chute rinsing or washing, concrete saw cutting and surfacing (sawing, coring, grinding, roughening, hydro- demolition, bridge and road surfacing). When stormwater comingles with concrete wastewater, the resulting water is considered concrete wastewater and must be managed to prevent discharge to waters of the State, including groundwater. Construction Activity means land disturbing operations including clearing, grading or excavation which disturbs the surface of the land (including off-site disturbance acreage related to construction-support activity). Such activities may include road construction, construction of residential houses, office buildings, or industrial buildings, site preparation, soil compaction, movement and stockpiling of topsoils, and demolition activity. Construction Support Activity means off-site acreage that will be disturbed as a direct result of the construction project and will discharge stormwater. For example, off-site equipment staging yards, material storage areas, borrow areas, and parking areas. Contaminant means any hazardous substance that does not occur naturally or occurs at greater than natural background levels. See definition of “hazardous substance” and WAC 173-340-200. Contaminated soil means soil which contains contaminants, pollutants, or hazardous substances that do not occur naturally or occur at levels greater than natural background. Contaminated groundwater means groundwater which contains contaminants, pollutants, or hazardous substances that do not occur naturally or occur at levels greater than natural background. Demonstrably Equivalent means that the technical basis for the selection of all stormwater BMPs is documented within a SWPPP, including: 1. The method and reasons for choosing the stormwater BMPs selected. 2. The pollutant removal performance expected from the BMPs selected. Construction Stormwater General Permit Page 44 3. The technical basis supporting the performance claims for the BMPs selected, including any available data concerning field performance of the BMPs selected. 4. An assessment of how the selected BMPs will comply with state water quality standards. 5. An assessment of how the selected BMPs will satisfy both applicable federal technology-based treatment requirements and state requirements to use all known, available, and reasonable methods of prevention, control, and treatment (AKART). Department means the Washington State Department of Ecology. Detention means the temporary storage of stormwater to improve quality and/or to reduce the mass flow rate of discharge. Dewatering means the act of pumping groundwater or stormwater away from an active construction site. Director means the Director of the Washington State Department of Ecology or his/her authorized representative. Discharger means an owner or operator of any facility or activity subject to regulation under Chapter 90.48 RCW or the Federal Clean Water Act. Domestic Wastewater means water carrying human wastes, including kitchen, bath, and laundry wastes from residences, buildings, industrial establishments, or other places, together with such groundwater infiltration or surface waters as may be present. Ecology means the Washington State Department of Ecology. Engineered Soils means the use of soil amendments including, but not limited, to Portland cement treated base (CTB), cement kiln dust (CKD), or fly ash to achieve certain desirable soil characteristics. Equivalent BMPs means operational, source control, treatment, or innovative BMPs which result in equal or better quality of stormwater discharge to surface water or to groundwater than BMPs selected from the SWMM. Erosion means the wearing away of the land surface by running water, wind, ice, or other geological agents, including such processes as gravitational creep. Erosion and Sediment Control BMPs means BMPs intended to prevent erosion and sedimentation, such as preserving natural vegetation, seeding, mulching and matting, plastic covering, filter fences, sediment traps, and ponds. Erosion and sediment control BMPs are synonymous with stabilization and structural BMPs. Federal Operator is an entity that meets the definition of “Operator” in this permit and is either any department, agency or instrumentality of the executive, legislative, and judicial branches of the Federal government of the United States, or another entity, such as a private contractor, performing construction activity for any such department, agency, or instrumentality. Final Stabilization (same as fully stabilized or full stabilization) means the completion of all soil disturbing activities at the site and the establishment of permanent vegetative cover, or equivalent permanent stabilization measures (such as pavement, riprap, gabions, or geotextiles) which will prevent erosion. See the applicable Stormwater Management Manual for more information on vegetative cover expectations and equivalent permanent stabilization measures. Construction Stormwater General Permit Page 45 Groundwater means water in a saturated zone or stratum beneath the land surface or a surface waterbody. Hazardous Substance means any dangerous or extremely hazardous waste as defined in RCW 70.105.010 (5) and (6), or any dangerous or extremely dangerous waste as designated by rule under chapter 70.105 RCW; any hazardous sub-stance as defined in RCW 70.105.010(14) or any hazardous substance as defined by rule under chapter 70.105 RCW; any substance that, on the effective date of this section, is a hazardous substance under section 101(14) of the federal cleanup law, 42U.S.C., Sec. 9601(14); petroleum or petroleum products; and any substance or category of substances, including solid waste decomposition products, determined by the director by rule to present a threat to human health or the environment if released into the environment. The term hazardous substance does not include any of the following when contained in an underground storage tank from which there is not a release: crude oil or any fraction thereof or petroleum, if the tank is in compliance with all applicable federal, state, and local law. Injection Well means a well that is used for the subsurface emplacement of fluids. (See Well.) Jurisdiction means a political unit such as a city, town or county; incorporated for local self-government. National Pollutant Discharge Elimination System (NPDES) means the national program for issuing, modifying, revoking and reissuing, terminating, monitoring, and enforcing permits, and imposing and enforcing pretreatment requirements, under sections 307, 402, 318, and 405 of the Federal Clean Water Act, for the discharge of pollutants to surface waters of the State from point sources. These permits are referred to as NPDES permits and, in Washington State, are administered by the Washington State Department of Ecology. Notice of Intent (NOI) means the application for, or a request for coverage under this general permit pursuant to WAC 173-226-200. Notice of Termination (NOT) means a request for termination of coverage under this general permit as specified by Special Condition S10 of this permit. Operator means any party associated with a construction project that meets either of the following two criteria: • The party has operational control over construction plans and specifications, including the ability to make modifications to those plans and specifications; or • The party has day-to-day operational control of those activities at a project that are necessary to ensure compliance with a SWPPP for the site or other permit conditions (e.g., they are authorized to direct workers at a site to carry out activities required by the SWPPP or comply with other permit conditions). Permittee means individual or entity that receives notice of coverage under this general permit. pH means a liquid’s measure of acidity or alkalinity. A pH of 7 is defined as neutral. Large variations above or below this value are considered harmful to most aquatic life. pH Monitoring Period means the time period in which the pH of stormwater runoff from a site must be tested a minimum of once every seven days to determine if stormwater pH is between 6.5 and 8.5. Construction Stormwater General Permit Page 46 Point Source means any discernible, confined, and discrete conveyance, including but not limited to, any pipe, ditch, channel, tunnel, conduit, well, discrete fissure, and container from which pollutants are or may be discharged to surface waters of the State. This term does not include return flows from irrigated agriculture. (See the Fact Sheet for further explanation) Pollutant means dredged spoil, solid waste, incinerator residue, filter backwash, sewage, garbage, domestic sewage sludge (biosolids), munitions, chemical wastes, biological materials, radioactive materials, heat, wrecked or discarded equipment, rock, sand, cellar dirt, and industrial, municipal, and agricultural waste. This term does not include sewage from vessels within the meaning of section 312 of the CWA, nor does it include dredged or fill material discharged in accordance with a permit issued under section 404 of the CWA. Pollution means contamination or other alteration of the physical, chemical, or biological properties of waters of the State; including change in temperature, taste, color, turbidity, or odor of the waters; or such discharge of any liquid, gaseous, solid, radioactive or other substance into any waters of the State as will or is likely to create a nuisance or render such waters harmful, detrimental or injurious to the public health, safety or welfare; or to domestic, commercial, industrial, agricultural, recreational, or other legitimate beneficial uses; or to livestock, wild animals, birds, fish or other aquatic life. Process Wastewater means any non-stormwater which, during manufacturing or processing, comes into direct contact with or results from the production or use of any raw material, intermediate product, finished product, byproduct, or waste product. If stormwater commingles with process wastewater, the commingled water is considered process wastewater. Receiving Water means the waterbody at the point of discharge. If the discharge is to a storm sewer system, either surface or subsurface, the receiving water is the waterbody to which the storm system discharges. Systems designed primarily for other purposes such as for groundwater drainage, redirecting stream natural flows, or for conveyance of irrigation water/return flows that coincidentally convey stormwater are considered the receiving water. Representative means a stormwater or wastewater sample which represents the flow and characteristics of the discharge. Representative samples may be a grab sample, a time-proportionate composite sample, or a flow proportionate sample. Ecology’s Construction Stormwater Monitoring Manual provides guidance on representative sampling. Responsible Corporate Officer for the purpose of signatory authority means: (i) a president, secretary, treasurer, or vice-president of the corporation in charge of a principal business function, or any other person who performs similar policy- or decision-making functions for the corporation, or (ii) the manager of one or more manufacturing, production, or operating facilities, provided, the manager is authorized to make management decisions which govern the operation of the regulated facility including having the explicit or implicit duty of making major capital investment recommendations, and initiating and directing other comprehensive measures to assure long term environmental compliance with environmental laws and regulations; the manager can ensure that the necessary systems are established or actions taken to gather complete and accurate information for permit application requirements; and where authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures (40 CFR 122.22). Sanitary Sewer means a sewer which is designed to convey domestic wastewater. Construction Stormwater General Permit Page 47 Sediment means the fragmented material that originates from the weathering and erosion of rocks or unconsolidated deposits, and is transported by, suspended in, or deposited by water. Sedimentation means the depositing or formation of sediment. Sensitive Area means a waterbody, wetland, stream, aquifer recharge area, or channel migration zone. SEPA (State Environmental Policy Act) means the Washington State Law, RCW 43.21C.020, intended to prevent or eliminate damage to the environment. Significant Amount means an amount of a pollutant in a discharge that is amenable to available and reasonable methods of prevention or treatment; or an amount of a pollutant that has a reasonable potential to cause a violation of surface or groundwater quality or sediment management standards. Significant Concrete Work means greater than 1000 cubic yards placed or poured concrete or recycled concrete used over the life of a project. Significant Contributor of Pollutants means a facility determined by Ecology to be a contributor of a significant amount(s) of a pollutant(s) to waters of the State of Washington. Site means the land or water area where any "facility or activity" is physically located or conducted. Source Control BMPs means physical, structural or mechanical devices or facilities that are intended to prevent pollutants from entering stormwater. A few examples of source control BMPs are erosion control practices, maintenance of stormwater facilities, constructing roofs over storage and working areas, and directing wash water and similar discharges to the sanitary sewer or a dead end sump. Stabilization means the application of appropriate BMPs to prevent the erosion of soils, such as, temporary and permanent seeding, vegetative covers, mulching and matting, plastic covering and sodding. See also the definition of Erosion and Sediment Control BMPs. Storm Drain means any drain which drains directly into a storm sewer system, usually found along roadways or in parking lots. Storm Sewer System means a means a conveyance, or system of conveyances (including roads with drainage systems, municipal streets, catch basins, curbs, gutters, ditches, manmade channels, or storm drains designed or used for collecting or conveying stormwater. This does not include systems which are part of a combined sewer or Publicly Owned Treatment Works (POTW), as defined at 40 CFR 122.2. Stormwater means that portion of precipitation that does not naturally percolate into the ground or evaporate, but flows via overland flow, interflow, pipes, and other features of a stormwater drainage system into a defined surface waterbody, or a constructed infiltration facility. Stormwater Management Manual (SWMM) or Manual means the technical Manual published by Ecology for use by local governments that contain descriptions of and design criteria for BMPs to prevent, control, or treat pollutants in stormwater. Stormwater Pollution Prevention Plan (SWPPP) means a documented plan to implement measures to identify, prevent, and control the contamination of point source discharges of stormwater. Construction Stormwater General Permit Page 48 Surface Waters of the State includes lakes, rivers, ponds, streams, inland waters, salt waters, and all other surface waters and water courses within the jurisdiction of the state of Washington. Temporary Stabilization means the exposed ground surface has been covered with appropriate materials to provide temporary stabilization of the surface from water or wind erosion. Materials include, but are not limited to, mulch, riprap, erosion control mats or blankets and temporary cover crops. Seeding alone is not considered stabilization. Temporary stabilization is not a substitute for the more permanent “final stabilization.” Total Maximum Daily Load (TMDL) means a calculation of the maximum amount of a pollutant that a waterbody can receive and still meet state water quality standards. Percentages of the total maximum daily load are allocated to the various pollutant sources. A TMDL is the sum of the allowable loads of a single pollutant from all contributing point and nonpoint sources. The TMDL calculations must include a "margin of safety" to ensure that the waterbody can be protected in case there are unforeseen events or unknown sources of the pollutant. The calculation must also account for seasonable variation in water quality. Transfer of Coverage (TOC) means a request for transfer of coverage under this general permit as specified by Special Condition S2.A of this permit. Treatment BMPs means BMPs that are intended to remove pollutants from stormwater. A few examples of treatment BMPs are detention ponds, oil/water separators, biofiltration, and constructed wetlands. Transparency means a measurement of water clarity in centimeters (cm), using a 60 cm transparency tube. The transparency tube is used to estimate the relative clarity or transparency of water by noting the depth at which a black and white Secchi disc becomes visible when water is released from a value in the bottom of the tube. A transparency tube is sometimes referred to as a “turbidity tube.” Turbidity means the clarity of water expressed as nephelometric turbidity units (NTUs) and measured with a calibrated turbidimeter. Uncontaminated means free from any contaminant. See definition of “contaminant” and WAC 173-340-200. Upset means an exceptional incident in which there is unintentional and temporary noncompliance with technology-based permit effluent limitations because of factors beyond the reasonable control of the Permittee. An upset does not include noncompliance to the extent caused by operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventive maintenance, or careless or improper operation. Waste Load Allocation (WLA) means the portion of a receiving water’s loading capacity that is allocated to one of its existing or future point sources of pollution. WLAs constitute a type of water quality based effluent limitation (40 CFR 130.2[h]). Water-Only Based Shaft Drilling is a shaft drilling process that uses water only and no additives are involved in the drilling of shafts for construction of building, road, or bridge foundations. Water Quality means the chemical, physical, and biological characteristics of water, usually with respect to its suitability for a particular purpose. Waters of the State includes those waters as defined as "waters of the United States" in 40 CFR Subpart 122.2 within the geographic boundaries of Washington State and "waters of the State" as defined in Chapter 90.48 RCW, which include lakes, rivers, ponds, streams, inland waters, underground waters, salt Construction Stormwater General Permit Page 49 waters, and all other surface waters and water courses within the jurisdiction of the state of Washington. Well means a bored, drilled or driven shaft, or dug hole whose depth is greater than the largest surface dimension. (See Injection Well.) Wheel Wash Wastewater means any water used in, or resulting from the operation of, a tire bath or wheel wash (BMP C106: Wheel Wash), or other structure or practice that uses water to physically remove mud and debris from vehicles leaving a construction site and prevent track-out onto roads. When stormwater comingles with wheel wash wastewater, the resulting water is considered wheel wash wastewater and must be managed according to Special Condition S9.D.9. Construction Stormwater General Permit Page 50 APPENDIX B – ACRONYMS AKART All Known, Available, and Reasonable Methods of Prevention, Control, and Treatment BMP Best Management Practice CESCL Certified Erosion and Sediment Control Lead CFR Code of Federal Regulations CKD Cement Kiln Dust cm Centimeters CPD Common Plan of Development CTB Cement-Treated Base CWA Clean Water Act DMR Discharge Monitoring Report EPA Environmental Protection Agency ERTS Environmental Report Tracking System ESC Erosion and Sediment Control FR Federal Register LID Low Impact Development NOI Notice of Intent NOT Notice of Termination NPDES National Pollutant Discharge Elimination System NTU Nephelometric Turbidity Unit RCW Revised Code of Washington SEPA State Environmental Policy Act SWMM Stormwater Management Manual SWPPP Stormwater Pollution Prevention Plan TMDL Total Maximum Daily Load UIC Underground Injection Control USC United States Code USEPA United States Environmental Protection Agency WAC Washington Administrative Code WQ Water Quality WWHM Western Washington Hydrology Model N Vicinity Map Owner / Developer Contact Info officeATTN: PSE N/A N/A PSE N/A Inspected Steel and PE pipe per GOS 2450.1400 and 2450.1500 Reviewed and complied with all construction notes. Recorded all required information on the as-built per GOS 2500.1700. Completed post installation inspection per GOS 2525.1200 and 2525.2700. Left the work area in a clean and safe condition. FITTER'S CHECKLIST Foreman's Name (printed) ___________________________________ Foreman's Signature________________________________________ Company: InfraSource Construction Date ______________ (CHECK BOX TO CONFIRM COMPLETION) 4680 06/11 N/A N/A N/A N/A N/A N/A N/A N/A N/A GAS PROJECT PHASE Notification #Order # SVC Retirement Service/Meter SAP Superior Service/Meter Service/Meter Service/Meter Service/Meter Service/Meter Service/Meter SYSTEM MAOP DENOTED BY: SYSTEM MAOP = ___ PSIG BOX (TEST LEAD) INSTALLATION. THE CONTRACTOR PER PSE GAS OPERATING STANDARD 2525.2600 FOR ALL HP VALVES IF THE LOCATION IS TO PREVENT ACCIDENTAL OVERPRESSURE OF ADJOINING SYSTEMS, NO TWO MAINS SHALL BE CONNECTED EXCEPT AS SHOWN ON THIS DESIGN UNLESS APPROVED BY APPROPRIATE PSE ENGINEER OR PSE REPRESENTATIVE. RESTORE ALL DRIVEWAYS SUBJECT TO OPEN CUT TO ORIGINAL OR BETTER CONDITION. MAINS AND SERVICES SHALL BE TESTED AND PURGED PER PSE GAS OPERATING STANDARDS 2525.3300 AND 2525.3400. PURGE POINTS AND PRESSURE TAPS TO BE INSTALLED PER PSE GAS OPERATING STANDARDS 2525.3300, AND 2525.1200. ANY CHANGE IN ROUTE, PIPE SIZE/TYPE, TIE-IN METHOD OR ADDITIONAL MAIN FOOTAGE MUST BE APPROVED BY COMPLETE "PIPE CONDITION REPORT" ON ALL METALLIC PSE FACILITIES. CHECK BOX ON REPORT FOR WIRE INSTALL MAIN VALVES OUT OF TRAFFIC WHERE POSSIBLE. VALVE MARKERS SHALL BE INSTALLED AND RECORDED BY THE OPPORTUNITY TO PURCHASE AN EXCESS FLOW VALVE WHEN THEIR SERVICE IS INSTALLED OR REPLACED PER GAS OPERATING STANDARD 2550.1600. ALLOW ADEQUATE TIME FOR CUSTOMER DECISION AND RESPONSE. DELIVER FLYERS BE SURE TO INCLUDE THE LIST OF FREQUENTLY ASKED QUESTIONS AND INFORMATION ABOUT PRIOR TO BEGINNING CONSTRUCTION. USE iSi TO DISTRIBUTE FLYERS IF JOB IS LARGE, OTHERWISE HAND NOTIFY PROPERTY OWNERS ADJACENT TO PROPOSED CONSTRUCTION ACTIVITIES A MINIMUM OF TWO WORKING DAYS EROSION AND SEDIMENT CONTROL AND ANY ADDITIONAL LOCAL JURISDICTION REQUIREMENTS. EROSION AND SEDIMENT CONTROL SHALL BE PER PSE STANDARD PRACTICE 0150.3200 TECHNIQUES FOR TEMPORARY ALL CONSTRUCTION IS TO CONFORM TO PSE GAS OPERATING STANDARDS AND GAS FIELD PROCEDURES. TO CONSTRUCTION, IN WESTERN WASHINGTON CALL: 1-800-424-5555. OR CALL NATIONWIDE: 811 FIELD LOCATE ALL UNDERGROUND UTILITIES. EXCAVATOR TO CALL "ONE-CALL" TWO WORKING DAYS PRIOR TO STANDARD GAS CONSTRUCTION NOTES: 14. 13. 15. 10. 11. THE APPROPRIATE PSE ENGINEER OR PSE REPRESENTATIVE. 9. 6. 7. 5. 4. 3. 1. 60 16. IF METALLIC PIPE IS INVOLVED, COORDINATE INSTALLATION WITH CP TECH. N/A N/A NOTIFY APPROPRIATE PERMITTING AGENCY PRIOR TO JOB START (SEE PERMIT REQUIREMENTS).2. 8.PIPELINE MARKERS AND WARNING SIGNS SHALL BE INSTALLED AND RECORDED BY THE CONTRACTOR PER PSE GAS OPERATING STANDARD 2525.2500. NOT READILY ACCESSIBLE, AND FOR ALL VALVES WHERE PERSISTENT SNOWFALL MAY OBSCURE THE VALVE BOX. GAUGE AND MONITOR USE OF ALL STOPPERS TO ENSURE ADEQUATE FEED.12. ___________________________, PHONE______________. NOTE ALL ACTUAL FOOTAGE, LOCATION AND MATERIAL CHANGES ON THE AS-BUILT IN RED. ( ') DENOTES17. FOOTAGE BETWEEN FITTINGS. 18.EXCESS FLOW VALVE TO BE INSTALLED ON ALL NEW RESIDENTIAL SERVICES PER GOS 2500.2200. (RECORD ALL INFORMATION ON D-4 CARD) 10 9 1 4 1 7 8 1 THIS SKETCH NOT TO BE RELIED UPON FOR EXACT LOCATION OF EXISTING FACILITIES CALL 811 AT LEAST 2 BUSINESS DAYS BEFORE YOU DIG For contacts below dial 1-888-CALL PSE (225-5773) "Locates Required" "Flagging Required" Yes No Yes No Cell Phone: Project Manager Contact Information: E-Mail: Name: 206-379-4347 DUSTIN.WELLER@PSE.COM DUSTIN WELLER HOLE HOG TABLE CALLOUT LOCATION DEPTH LENGTH BP1 START BP2 END BP3 START BP4 END BP5 START BP6 END BP7 START BP8 END BP9 START BP10 END BP11 START BP12 END BP13 START BP14 END BP15 START BP16 END BP17 START BP18 END BP19 START BP20 END PLUG ENDS OF DEACTIVATED OR INSERTED MAINS AND SERVICES IN ACCORDANCE WITH PSE GAS OPERATING INSIDE METER SETS SHALL BE MOVED OUTSIDE WHENEVER POSSIBLE OR SET REGULATORS AND VENTS OUTSIDE PER PROJECT MANAGER TO MAKE EGOR RUN IMMEDIATELY PRIOR TO STARTING CONSTRUCTION. MAINS AND SERVICES SHALL BE TESTED AND PURGED PER PSE GAS OPERATING STANDARDS 2525.3300, 2525.3400 REFER TO PSE GAS OPERATING STANDARD 2525.1700 FOR MAIN AND SERVICE COVER REQUIREMENTS. INSTALL CURB VALVE AT PROPERTY LINE OR 5/8" PE WHIP AT MAIN (AS REQUIRED) ON NEW AND EXISTING SERVICES INSTALL ANODES AND TEST LEAD WIRES AS REQUIRED PER PSE GAS FIELD PROCEDURES 4515.1000 AND 4515.1020 AND PSE GAS OPERATING STANDARD 2600.1200. TEST LEAD WIRES ARE REQUIRED ON ALL TRANSITION FITTINGS. MAINTAIN CATHODIC PROTECTION FOR STEEL MAINS BY THE USE OF CONTINUITY BONDS OR OTHER MEANS DETERMINED BY THE PSE CORROSION ENGINEER PER PSE GAS OPERATING STANDARD 2600.1300. INSTALL ONE POUND ANODE FOR EVERY 1000' OF LOCATING WIRE. INSTALL ANODE AND TEST LEAD WIRES PER PSE NOTIFY GAS CUSTOMERS, OR DISTRIBUTE FLYER #1443 A MINIMUM OF TWO WORKING DAYS PRIOR TO A PLANNED REPLACE ALL "NO RECORD" SERVICES AND 1-1/8" PE SERVICES INSTALLED PRIOR TO 1985. REPLACE EXISTING ACTIVE SERVICES PER PSE GAS OPERATING STANDARDS 2525.2100 AND 2575.2300. REMOVE OR RENDER INOPERABLE DEACTIVATED VALVES ON CASING WHERE MPE PIPE IS INSERTED. INSTALL REPLACEMENT MAINS PER PSE GAS OPERATING STANDARDS 2525.2100 FOR INSERTIONS AND 2525.3600 FOR STANDARDS 2525.2100 AND 2525.3600. PSE GAS OPERATING STANDARDS 2575.2300 AND 2550.1700. 11. 12. 14. 13. AND 2525.1200, AND PSE GAS FIELD PROCEDURE 4700.1500. PER PSE GAS OPERATING STANDARD 2550.1600. ABANDONMENT OR DEACTIVATION. 10. 9. 5. 6. 7. 8. GAS OPERATING STANDARD 2525.2300. 4. 1. 2. 3. OUTAGE. STANDARD IP & LP GAS REPLACEMENT CONSTRUCTION NOTES 15.ACTIVE SERVICES TO BE REPLACED DENOTED BY: WORK AREA STOP TIME START TIME GAS MAIN PRESSURE & TESTING TESTED BY GAS MAIN INSTALLATION/RETIREMENT SOAP AIR NITROGEN WATER SOAP AIR NITROGEN WATER STOP TIME START TIME TESTED BY TEST RESULTS P F TESTED BY PSE PRESSURE CONTROL, SEE FORM 1928 P F Type/Work ManufacturerPipe Size Type Est Length Act Lgth TYPE TEST / / DATE OFF PRESSURE DATE ON DATE OFF TYPE TEST PRESSURE SYS MAOPDESIGN PRESS DATE ON 2023 02/18 TEST RESULTS / / / / / / Verify Testing Requirements, Chart vs Gauge GOS 2525.3300 sec. 5, Table 5-1 and sec. 5.5 GASSED UP PIPELINE PIPE SEGMENT FOREMAN'S DATENAME 60 IP132- 60 N/A 109141781 N/A 1"=20'1 / 10 KING N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A DESIGNED BY PUGET SOUND ENERGY UTILITIES CONTACT PHONE# COUNTY 1/4 SEC OP MAP Emer Sect GAS WK CTR PLAT MAP JOINT FACILITIES ARRANGEMENTS DRAWN BY CHECKED BY APPROVED BY CP APPROVAL MAPPING SCALE PAGE ENGR - GAS FUNCTION PROJECT MGR PERMITREAL ESTATE/EASEMENT 2 1 REV# 3 DATE DESCRIPTIONBY CONTACT PHONE NO DATE Drawing Number SAP Sup Order Nbr INSTALL N/AMN Retirement RENTON 132A CSPSKGPI SW-28-23-5 / SE-28-23-5 212.080 213.084 / 213.085 N/A N/A 11637435 109141781 SAP BATCH YEAR & FOOTAGE ACTUAL LENGTH OF RETIREMENT MATERIAL RETIRED ORIGINAL JOB ORIGINAL YEAR PROPOSED LENGTH OF RETIREMENT SIZE OF RETIRED MAIN PUBLIC IMPROVEMENT SE 172ND ST STORMWATER IMPR. PROJECT SE 172ND ST & 125TH PL SE, RENTON, WA 16.ACTIVE SERVICES TO BE PARTIALLY REPLACED AND TEST & TIED DENOTED BY: 17.ACTIVE SERVICES TO BE TESTED & TIED DENOTED BY:##### ##### N/A Service/Meter 108634556 108655521 N/A N/A N/A N/A N/A N/A N/A SE 172ND ST STORMWATER IMPROVEMENT PROJECT CENTER LINE 36 3 2 ROW PROPOSED GAS MAIN EXISTING GAS MAIN DEACTIVATED GAS LINE PROPOSED GAS SERVICE EXISTING GAS SERVICE LEGEND EXISTING HIGH PRESSURE GAS PROPOSED HIGH PRESSURE GAS PROPOSED SERVICE TEE PROPOSED B/O STOPPER D.SANTIAGO 425.738.8705 206.379.4347D.WELLER D.SANTIAGO 425.738.8705 2/28/25 2/28/25 2/28/25 PLOT PLAN A SEE SHEET 2 PLOT PLAN B SEE SHEET 3 PLOT PLAN C SEE SHEET 4 PLOT PLAN D SEE SHEET 5 PLOT PLAN E SEE SHEET 5 SE 172ND ST SE 172ND ST 12 2 N D A V E S E 12 3 R D A V E S E 12 4 T H A V E S E 12 5 T H A V E S E SITE PLAN NOT TO SCALE PLOT PLAN F SEE SHEET 6 PLOT PLAN G SEE SHEET 7 PLOT PLAN H SEE SHEET 8 PLOT PLAN I SEE SHEET 9 SE 171ST ST PLOT PLAN J SEE SHEET 10 12 7 T H A V E S E PROPOSED HIGH VOLUME TAPPING TEE 2"MPE 824' 2" 2" MPE MPE 109119022 109063876 2021 2011 93' 600' 1-1/4"PEI 822326 1982 10' 1-1/4"MPE 13' RETIRMENT 2"MPE 693' 1-1/4"PEI 10' ##### 12 1 4 5 17 0 4 5 17 0 4 0 17 0 3 9 12137 12201 17 0 4 6 25'25' 25'25' 50' R/W 50' R/W 30' 30' 60' R/W 30' 30' 60' R/W IP GAS FLOW IP GAS FLOW IP G A S F L O W IP G A S F L O W IP G A S F L O W N PLOT PLAN A SCALE: 1" = 20'-0" TOP OF PROPOSED 1-1/8" STUB TO BE BURIED AT 2' 8" FROM TOP OF GRADE TO CLEAR CITIES PROPOSED 18" STORM DRAIN. TOP OF STORM WILL BE APPROXIMATELY 3' 4" FROM TOP OF GRADE. PROPOSED 1-1/8" MPE SVC TIE-IN 116'N C/L 10'W C/L 1 2 MATCHLINE A-A SEE PAGE 3 Inspected Steel and PE pipe per GOS 2450.1400 and 2450.1500 Reviewed and complied with all construction notes. Recorded all required information on the as-built per GOS 2500.1700. Completed post installation inspection per GOS 2525.1200 and 2525.2700. Left the work area in a clean and safe condition. FITTER'S CHECKLIST Foreman's Name (printed) ___________________________________ Foreman's Signature________________________________________ Company: InfraSource Construction Date ______________ (CHECK BOX TO CONFIRM COMPLETION) 4680 06/11 THIS SKETCH NOT TO BE RELIED UPON FOR EXACT LOCATION OF EXISTING FACILITIES CALL 811 AT LEAST 2 BUSINESS DAYS BEFORE YOU DIG For contacts below dial 1-888-CALL PSE (225-5773) "Locates Required" "Flagging Required" Yes No Yes No Cell Phone: Project Manager Contact Information: E-Mail: Name: 206-379-4347 DUSTIN.WELLER@PSE.COM DUSTIN WELLER N/A 109141781 N/A 1"=20'2 / 10 KING N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A DESIGNED BY PUGET SOUND ENERGY UTILITIES CONTACT PHONE# COUNTY 1/4 SEC OP MAP Emer Sect GAS WK CTR PLAT MAP JOINT FACILITIES ARRANGEMENTS DRAWN BY CHECKED BY APPROVED BY CP APPROVAL MAPPING SCALE PAGE ENGR - GAS FUNCTION PROJECT MGR PERMITREAL ESTATE/EASEMENT 2 1 REV# 3 DATE DESCRIPTIONBY CONTACT PHONE NO DATE Drawing Number SAP Sup Order Nbr RENTON PUBLIC IMPROVEMENT SE 172ND ST STORMWATER IMPR. PROJECT SE 172ND ST & 125TH PL SE, RENTON, WA MA T C H L I N E B - B SE E P A G E 4 TEE TAP 2"X5/8" MPE (GAUGE TEE) ____'N C/L & ____'W C/L TEE TAP 2"X5/8" MPE (GAUGE TEE) ____'N C/L & ____'W C/L CUT & CAP CAP 2" MPE 44'N C/L & 10'W C/L ____'N C/L & ____'W C/L CUT & CAP CAP 2" MPE 61'N C/L & 10'W C/L ____'N C/L & ____'W C/L 2x ELBOW 2"X90° MPE (SQUEEZE & FUSE TIE IN) 42'N C/L & 10'W C/L ____'N C/L & ____'W C/L 2x ELBOW 2"X90° MPE (SQUEEZE & FUSE TIE IN) 63'N C/L & 10'W C/L ____'N C/L & ____'W C/L IP G A S F L O W IP G A S F L O W LOWER 2" MPE GAS BY 2' 2" TO CLEAR CITIES PROPOSED 12" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 4' 3" FROM TOP OF GRADE. TOP OF GAS WILL NEED TO BE AT LEAST 5' 6" FROM TOP OF GRADE TO PROVIDE SUFFICIENT CLEARANCE. IP GAS FLOW IP GAS FLOW D.SANTIAGO 425.738.8705 206.379.4347D.WELLER D.SANTIAGO 425.738.8705 2/28/25 2/28/25 2/28/25 10 9 1 4 1 7 8 1 2 2 TEE TAP 2"X5/8" MPE (GAUGE TEE) ____'S C/L & ____'E C/L TEE TAP 2"X5/8" MPE (GAUGE TEE) ____'S C/L & ____'W C/L CUT & CAP CAP 2" MPE 10'S C/L & 23'W C/L ____'S C/L & ____'W C/L ELBOW 2"X90° MPE 6'S C/L & 24'W C/L ____'S C/L & ____'W C/L ELBOW 2"X90° MPE 6'S C/L & 1'E C/L ____'S C/L & ____'E C/L 2x ELBOW 2"X90° MPE (SQUEEZE & FUSE TIE IN) 10'S C/L & 24'W C/L ____'S C/L & ____'W C/L 2x ELBOW 2"X90° MPE (SQUEEZE & FUSE TIE IN) 12'S C/L & 1'E C/L ____'S C/L & ____'E C/L ELBOW 2"X90° MPE TEE 2"X2" INLINE TEE (SQUEEZE & FUSE TIE IN) 6'S C/L & 10'W C/L ____'S C/L & ____'W C/L INSTALL NEW 2" MPE IP GAS MAIN AT LEAST 5' 3" FROM TOP OF GRADE TO CLEAR CITIES PROPOSED 18" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 4' 3" FROM TOP OF GRADE. INSTALL NEW 2" MPE IP GAS MAIN AT LEAST 5' 3" FROM TOP OF GRADE TO CLEAR PROPOSED 1" WATER PIPE. BOTTOM OF WATER PIPE WILL BE APPROXIMATELY 4' 3" FROM TOP OF GRADE. CSPSKGPI SW-28-23-5 / SE-28-23-5 212.080 213.084 / 213.085 132A LOWER 2" MPE GAS BY 2' 2" TO CLEAR CITIES PROPOSED 12" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 4' 3" FROM TOP OF GRADE. TOP OF GAS WILL NEED TO BE AT LEAST 5' 6" FROM TOP OF GRADE TO PROVIDE SUFFICIENT CLEARANCE. INSTALL NEW 2" MPE IP GAS MAIN AT LEAST 5' 3" FROM TOP OF GRADE TO CLEAR CITIES PROPOSED 18" STORM DRAIN. TOP OF STORM DRAIN WILL BE APPROXIMATELY 2' 9" FROM TOP OF GRADE & BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 4' 3" FROM TOP OF GRADE. INSTALL NEW 2" MPE IP GAS MAIN AT LEAST 5' 3" FROM TOP OF GRADE TO CLEAR PROPOSED 1" WATER PIPE. TOP OF WATER PIPE WILL BE APPROXIMATELY 3' 7" FROM TOP OF GRADE & BOTTOM OF WATER PIPE WILL BE APPROXIMATELY 3' 10" FROM TOP OF GRADE. CUT & CAP CAP 2" MPE 12'S C/L & AT C/L ____'S C/L & ____ C/L CUT & CAP CAP 2" MPE 7'S C/L & 10'W C/L ____'S C/L & ____'W C/L (_ _ _ _ ' ) 6' p r o p o s e d (_ _ _ _ ' ) 4' p r o p o s e d (____') 11' proposed (____') 14' proposed (_ _ _ _ ' ) 21 ' p r o p o s e d Scale: NTS TIE IN DETAIL2 2 Scale: NTS TIE IN DETAIL1 2 Scale: NTS VERTICAL OFFSET SECTION2 2 ELBOW 2"X90° MPE (SQUEEZE & FUSE TIE IN) 12'S C/L & 1'E C/L ELBOW 2"X90° MPE 6'S C/L & 1'E C/L TEE 2"X2" INLINE TEE 6'S C/L & 10'W C/L ELBOW 2"X90° MPE (SQUEEZE & FUSE TIE IN) 10'S C/L & 24'W C/L ELBOW 2"X90° MPE 10'S C/L & 24'W C/L ELBOW 2"X90° MPE 6'S C/L & 24'W C/L ELBOW 2"X90° MPE (SQUEEZE & FUSE TIE IN) 6'S C/L & 10'W C/L ELBOW 2"X90° MPE 12'S C/L & 1'E C/L 17 0 3 4 17 0 1 1 17 0 0 3 17 0 1 2 17 0 2 5 1 7 0 3 3 17 0 2 6 17 0 1 7 17 0 1 8 17 0 0 4 25'25' 50' R/W 25'25' 50' R/W 17 0 0 4 IP G A S F L O W IP G A S F L O W IP G A S F L O W Inspected Steel and PE pipe per GOS 2450.1400 and 2450.1500 Reviewed and complied with all construction notes. Recorded all required information on the as-built per GOS 2500.1700. Completed post installation inspection per GOS 2525.1200 and 2525.2700. Left the work area in a clean and safe condition. FITTER'S CHECKLIST Foreman's Name (printed) ___________________________________ Foreman's Signature________________________________________ Company: InfraSource Construction Date ______________ (CHECK BOX TO CONFIRM COMPLETION) 4680 06/11 THIS SKETCH NOT TO BE RELIED UPON FOR EXACT LOCATION OF EXISTING FACILITIES CALL 811 AT LEAST 2 BUSINESS DAYS BEFORE YOU DIG For contacts below dial 1-888-CALL PSE (225-5773) "Locates Required" "Flagging Required" Yes No Yes No Cell Phone: Project Manager Contact Information: E-Mail: Name: 206-379-4347 DUSTIN.WELLER@PSE.COM DUSTIN WELLER N/A 109141781 N/A 1"=20'3 / 10 KING N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A DESIGNED BY PUGET SOUND ENERGY UTILITIES CONTACT PHONE# COUNTY 1/4 SEC OP MAP Emer Sect GAS WK CTR PLAT MAP JOINT FACILITIES ARRANGEMENTS DRAWN BY CHECKED BY APPROVED BY CP APPROVAL MAPPING SCALE PAGE ENGR - GAS FUNCTION PROJECT MGR PERMITREAL ESTATE/EASEMENT 2 1 REV# 3 DATE DESCRIPTIONBY CONTACT PHONE NO DATE Drawing Number SAP Sup Order Nbr RENTON PUBLIC IMPROVEMENT SE 172ND ST STORMWATER IMPR. PROJECT SE 172ND ST & 125TH PL SE, RENTON, WA PLOT PLAN B SCALE: 1" = 20'-0" MATCHLINE A-A SEE PAGE 2 2 3 IP G A S F L O W TEE TAP 2"X5/8" MPE (GAUGE TEE) ____'N C/L & ____'W C/L TEE TAP 2"X5/8" MPE (GAUGE TEE) ____'N C/L & ____'W C/L CUT & CAP CAP 2" MPE 323'N C/L & 10'W C/L ____'N C/L & ____'W C/L CUT & CAP CAP 2" MPE 339'N C/L & 10'W C/L ____'N C/L & ____'W C/L 2x ELBOW 2"X90° MPE (SQUEEZE & FUSE TIE IN) 321'N C/L & 10'W C/L ____'N C/L & ____'W C/L 2x ELBOW 2"X90° MPE (SQUEEZE & FUSE TIE IN) 341'N C/L & 10'W C/L ____'N C/L & ____'W C/L LOWER 2" MPE GAS BY 1' 5" TO CLEAR CITIES PROPOSED 12" & 18" STORM DRAINS. BOTTOM OF LOWEST STORM DRAIN WILL BE APPROXIMATELY 4' 2" FROM TOP OF GRADE. TOP OF GAS WILL NEED TO BE AT LEAST 5' 2" FROM TOP OF GRADE TO PROVIDE SUFFICIENT CLEARANCE. TOP OF PROPOSED 1-1/8" STUB TO BE BURIED AT LEAST 5' 4" FROM TOP OF GRADE TO CLEAR CITIES PROPOSED 18" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 4' 10" FROM TOP OF GRADE. PROPOSED 1-1/8" MPE SVC TIE-IN 385'N C/L 10'W C/L TOP OF PROPOSED 1-1/8" STUB TO BE BURIED AT LEAST 5' 3" FROM TOP OF GRADE TO CLEAR CITIES PROPOSED 18" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 4' 9" FROM TOP OF GRADE. PROPOSED 1-1/8" MPE SVC TIE-IN 452'N C/L 10'W C/L PROPOSED 1-1/8" MPE SVC TIE-IN 317'N C/L 10'W C/L PROPOSED 1-1/8" MPE SVC TIE-IN 523'N C/L 10'W C/L TOP OF PROPOSED 1-1/8" STUB TO BE BURIED AT LEAST 5' 2" FROM TOP OF GRADE TO CLEAR CITIES PROPOSED 18" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 4' 8" FROM TOP OF GRADE. D.SANTIAGO 425.738.8705 206.379.4347D.WELLER D.SANTIAGO 425.738.8705 2/28/25 2/28/25 2/28/25 10 9 1 4 1 7 8 1 1 3 IP G A S F L O W TEE TAP 2"X5/8" MPE (BYPASS TEE) ____'N C/L & ____'W C/L 2x ELBOW 2"X90° MPE (SQUEEZE & FUSE TIE IN) 630'N C/L & 10'W C/L ____'N C/L & ____'W C/L ELBOW 2"X90° MPE 584'N C/L & 20'W C/L ____'N C/L & ____'W C/L TEE TAP 2"X5/8" MPE (GAUGE TEE) ____'N C/L & ____'W C/L (____') (_ _ _ _ ' ) 16 ' p r o p o s e d CUT & CAP CAP 2" MPE 585'N C/L & 10'W C/L ____'N C/L & ____'W C/L CUT & CAP CAP 2" MPE 629'N C/L & 10'W C/L ____'N C/L & ____'W C/L CSPSKGPI SW-28-23-5 / SE-28-23-5 212.080 213.084 / 213.085 132A 10' proposed 2x ELBOW 2"X90° MPE (SQUEEZE & FUSE TIE IN) 584'N C/L & 10'W C/L ____'N C/L & ____'W C/L ELBOW 2"X90° MPE 630'N C/L & 20'W C/L ____'N C/L & ____'W C/L LOWER 2" MPE GAS BY 1' 5" TO CLEAR CITIES PROPOSED 12" & 18" STORM DRAINS. BOTTOM OF LOWEST STORM DRAIN WILL BE APPROXIMATELY 4' 2" FROM TOP OF GRADE. TOP OF GAS WILL NEED TO BE AT LEAST 5' 2" FROM TOP OF GRADE TO PROVIDE SUFFICIENT CLEARANCE. TEE TAP 2"X5/8" MPE (BYPASS TEE) ____'N C/L & ____'W C/L TEE TAP 2"X5/8" MPE (GAUGE TEE) ____'N C/L & ____'W C/L PIPE 5/8" MPE BYPASS PROPOSED 1-1/8" MPE SVC TIE-IN 600'N C/L 20'W C/L PROPOSED 1-1/8" MPE SVC TIE-IN 600'N C/L 20'W C/L (_ _ _ _ ' ) 30 ' p r o p o s e d (____') 10' proposedTOP OF PROPOSED 2" MPE GAS TO BE BURIED AT 3' 6" FROM TOP OF GRADE TO CLEAR CITIES PROPOSED 6" SEWER PIPE. TOP OF SEWER PIPE WILL BE APPROXIMATELY 4' 6" FROM TOP OF GRADE. TOP OF PROPOSED 2" MPE GAS TO BE BURIED AT 3' 6" FROM TOP OF GRADE TO CLEAR CITIES PROPOSED 6" SEWER PIPE. TOP OF SEWER PIPE WILL BE APPROXIMATELY 4' 6" FROM TOP OF GRADE. TOP OF PROPOSED 1-1/8" STUB TO BE BURIED AT LEAST 5' 4" FROM TOP OF GRADE TO CLEAR CITIES PROPOSED 18" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 4' 10" FROM TOP OF GRADE. TOP OF PROPOSED 1-1/8" STUB TO BE BURIED AT LEAST 5' 4" FROM TOP OF GRADE TO CLEAR CITIES PROPOSED 18" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 4' 10" FROM TOP OF GRADE. Scale: NTS TIE IN DETAIL1 3 Scale: NTS TIE IN DETAIL2 3 (_ _ _ _ ' ) 20 ' p r o p o s e d 12207 12215 12 2 1 0 12301 12307 12306 12204 30' 30' 60' R/W 30' 30' 60' R/W 25'25' 50' R/W IP G A S F L O W IP G A S F L O W Inspected Steel and PE pipe per GOS 2450.1400 and 2450.1500 Reviewed and complied with all construction notes. Recorded all required information on the as-built per GOS 2500.1700. Completed post installation inspection per GOS 2525.1200 and 2525.2700. Left the work area in a clean and safe condition. FITTER'S CHECKLIST Foreman's Name (printed) ___________________________________ Foreman's Signature________________________________________ Company: InfraSource Construction Date ______________ (CHECK BOX TO CONFIRM COMPLETION) 4680 06/11 THIS SKETCH NOT TO BE RELIED UPON FOR EXACT LOCATION OF EXISTING FACILITIES CALL 811 AT LEAST 2 BUSINESS DAYS BEFORE YOU DIG For contacts below dial 1-888-CALL PSE (225-5773) "Locates Required" "Flagging Required" Yes No Yes No Cell Phone: Project Manager Contact Information: E-Mail: Name: 206-379-4347 DUSTIN.WELLER@PSE.COM DUSTIN WELLER N/A 109141781 N/A 1"=20'4 / 10 KING N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A DESIGNED BY PUGET SOUND ENERGY UTILITIES CONTACT PHONE# COUNTY 1/4 SEC OP MAP Emer Sect GAS WK CTR PLAT MAP JOINT FACILITIES ARRANGEMENTS DRAWN BY CHECKED BY APPROVED BY CP APPROVAL MAPPING SCALE PAGE ENGR - GAS FUNCTION PROJECT MGR PERMITREAL ESTATE/EASEMENT 2 1 REV# 3 DATE DESCRIPTIONBY CONTACT PHONE NO DATE Drawing Number SAP Sup Order Nbr RENTON PUBLIC IMPROVEMENT SE 172ND ST STORMWATER IMPR. PROJECT SE 172ND ST & 125TH PL SE, RENTON, WA PLOT PLAN C SCALE: 1" = 20'-0" MA T C H L I N E B - B SE E P A G E 2 MATCHLINE C-C SEE PAGE 5 1 4 MA T C H L I N E E - E SE E P A G E 6 IP GAS FLOW IP G A S F L O W PROPOSED 1-1/8" MPE SVC TIE-IN 12'S C/L 111'E C/L TOP OF PROPOSED 1-1/8" STUB TO BE BURIED AT LEAST 4' 11" FROM TOP OF GRADE TO CLEAR CITIES PROPOSED 18" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 4' 5" FROM TOP OF GRADE. TEE TAP 2"X5/8" MPE (GAUGE TEE) ____'S C/L & ____'W C/L CUT & CAP CAP 2" MPE AT C/L & 12'W C/L ____ C/L & ____'W C/L 2x ELBOW 2"X90° MPE (SQUEEZE & FUSE TIE IN) 1'S C/L & 12'W C/L ____'S C/L & ____'W C/L LOWER 2" MPE GAS BY 2' 2" TO CLEAR CITIES PROPOSED 18" STORM DRAIN, 8" WATER MAIN, & 12" STORM DRAIN. BOTTOM OF LOWEST UTILITY WILL BE APPROXIMATELY 4' 10" FROM TOP OF GRADE. TOP OF GAS WILL NEED TO BE AT LEAST 5' 10" FROM TOP OF GRADE TO PROVIDE SUFFICIENT CLEARANCE. D.SANTIAGO 425.738.8705 206.379.4347D.WELLER D.SANTIAGO 425.738.8705 2/28/25 2/28/25 2/28/25 10 9 1 4 1 7 8 1 CSPSKGPI SW-28-23-5 / SE-28-23-5 212.080 213.084 / 213.085 132A TEE TAP 2"X5/8" MPE (GAUGE TEE) ____'N C/L & ____'W C/L CUT & CAP CAP 2" MPE 52'N C/L & 12'W C/L ____'N C/L & ____'W C/L 2x ELBOW 2"X90° MPE (SQUEEZE & FUSE TIE IN) 53'N C/L & 12'W C/L ____'N C/L & ____'W C/L LOWER 2" MPE GAS BY 2' 2" TO CLEAR CITIES PROPOSED 18" STORM DRAIN, 8" WATER MAIN, & 12" STORM DRAIN. BOTTOM OF LOWEST UTILITY WILL BE APPROXIMATELY 4' 10" FROM TOP OF GRADE. TOP OF GAS WILL NEED TO BE AT LEAST 5' 10" FROM TOP OF GRADE TO PROVIDE SUFFICIENT CLEARANCE. Scale: NTS TIE IN DETAIL1 4 (_ _ _ _ ' ) 54 ' p r o p o s e d 17 0 4 5 17 0 4 0 17 0 3 9 17011 17017 1 7 0 4 6 17 0 3 4 17 0 1 8 17 0 1 2 1 7 0 2 6 17 0 3 3 25'25' 50' R/W 25'25' 50' R/W 17 0 0 3 16 8 6 4 17 0 0 4 16 8 6 3 25'25' 50' R/W 25'25' 50' R/W 16 8 6 3 IP G A S F L O W 17 0 2 6 17 0 3 3 IP G A S F L O W IP G A S F L O W Inspected Steel and PE pipe per GOS 2450.1400 and 2450.1500 Reviewed and complied with all construction notes. Recorded all required information on the as-built per GOS 2500.1700. Completed post installation inspection per GOS 2525.1200 and 2525.2700. Left the work area in a clean and safe condition. FITTER'S CHECKLIST Foreman's Name (printed) ___________________________________ Foreman's Signature________________________________________ Company: InfraSource Construction Date ______________ (CHECK BOX TO CONFIRM COMPLETION) 4680 06/11 THIS SKETCH NOT TO BE RELIED UPON FOR EXACT LOCATION OF EXISTING FACILITIES CALL 811 AT LEAST 2 BUSINESS DAYS BEFORE YOU DIG For contacts below dial 1-888-CALL PSE (225-5773) "Locates Required" "Flagging Required" Yes No Yes No Cell Phone: Project Manager Contact Information: E-Mail: Name: 206-379-4347 DUSTIN.WELLER@PSE.COM DUSTIN WELLER N/A 109141781 N/A 1"=20'5 / 10 KING N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A DESIGNED BY PUGET SOUND ENERGY UTILITIES CONTACT PHONE# COUNTY 1/4 SEC OP MAP Emer Sect GAS WK CTR PLAT MAP JOINT FACILITIES ARRANGEMENTS DRAWN BY CHECKED BY APPROVED BY CP APPROVAL MAPPING SCALE PAGE ENGR - GAS FUNCTION PROJECT MGR PERMITREAL ESTATE/EASEMENT 2 1 REV# 3 DATE DESCRIPTIONBY CONTACT PHONE NO DATE Drawing Number SAP Sup Order Nbr RENTON PUBLIC IMPROVEMENT SE 172ND ST STORMWATER IMPR. PROJECT SE 172ND ST & 125TH PL SE, RENTON, WA PLOT PLAN D SCALE: 1" = 20'-0" MATCHLINE C-C SEE PAGE 4 TOP OF PROPOSED 1-1/8" STUB TO BE BURIED AT 2' 7' FROM TOP OF GRADE TO CLEAR CITIES PROPOSED 18" STORM DRAIN. TOP OF STORM DRAIN WILL BE APPROXIMATELY 3' 3" FROM TOP OF GRADE. PROPOSED 1-1/8" MPE SVC TIE-IN 115'N C/L 12'W C/L IP G A S F L O W IP G A S F L O W PROPOSED 1-1/8" MPE SVC TIE-IN 267'N C/L 12'W C/L TOP OF PROPOSED 1-1/8" STUB TO BE BURIED AT 2' 8" FROM TOP OF GRADE TO CLEAR CITIES PROPOSED 18" STORM DRAIN. TOP OF STORM DRAIN WILL BE APPROXIMATELY 3' 6" FROM TOP OF GRADE. 1 5 LOWER 2" MPE GAS BY 3' 1" TO CLEAR CITIES PROPOSED 12" & 18" STORM DRAINS. BOTTOM OF LOWEST UTILITY WILL BE APPROXIMATELY 5' FROM TOP OF GRADE. TOP OF GAS WILL NEED TO BE AT LEAST 6' FROM TOP OF GRADE TO PROVIDE SUFFICIENT CLEARANCE. PROPOSED 1-1/8" MPE SVC TIE-IN 319'N C/L 10'W C/L PROPOSED 1-1/8" MPE SVC TIE-IN 420'N C/L 12'W C/L TOP OF PROPOSED 1-1/8" STUB TO BE BURIED AT LEAST 5' 2" FROM TOP OF GRADE TO CLEAR CITIES PROPOSED 18" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 4' 8" FROM TOP OF GRADE. TOP OF PROPOSED 1-1/8" STUB TO BE BURIED AT LEAST 5' 1" FROM TOP OF GRADE TO CLEAR CITIES PROPOSED 18" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 4' 7" FROM TOP OF GRADE. MATCHLINE D-D SEE THIS PAGE RIGHT PLOT PLAN E SCALE: 1" = 20'-0" MATCHLINE D-D SEE THIS PAGE LEFT PROPOSED 1-1/8" MPE SVC TIE-IN 473'N C/L 12'W C/L TOP OF PROPOSED 1-1/8" STUB TO BE BURIED AT LEAST 4' 11" FROM TOP OF GRADE TO CLEAR CITIES PROPOSED 18" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 4' 5" FROM TOP OF GRADE. PROPOSED 1-1/8" MPE SVC TIE-IN 552'N C/L 12'W C/L IP G A S F L O W 2 5 D.SANTIAGO 425.738.8705 206.379.4347D.WELLER D.SANTIAGO 425.738.8705 2/28/25 2/28/25 2/28/25 10 9 1 4 1 7 8 1 CUT & CAP CAP 2" MPE 598'N C/L & 12'W C/L ____'N C/L & ____'W C/L CUT & CAP CAP 2" MPE 622'N C/L & 12'W C/L ____'N C/L & ____'W C/L ELBOW 2"X90° MPE 597'N C/L & 20'W C/L ____'N C/L & ____'W C/L ELBOW 2"X90° MPE (SQUEEZE & FUSE TIE IN) 597'N C/L & 12'W C/L ____'N C/L & ____'W C/L ELBOW 2"X90° MPE (SQUEEZE & FUSE TIE IN) 623'N C/L & 12'W C/L ____'N C/L & ____'W C/L (_ _ _ _ ' ) 26 ' p r o p o s e d CSPSKGPI SW-28-23-5 / SE-28-23-5 212.080 213.084 / 213.085 132A CUT & CAP CAP 2" MPE 315'N C/L & 12'W C/L ____'N C/L & ____'W C/L PIPE 5/8" MPE BYPASS TEE TAP 2"X5/8" MPE (GAUGE TEE) ____'N C/L & ____'W C/L TEE TAP 2"X5/8" MPE (BYPASS TEE) ____'N C/L & ____'W C/L TEE TAP 2"X5/8" MPE (BYPASS TEE) ____'N C/L & ____'W C/L PIPE 5/8" MPE BYPASS TEE TAP 2"X5/8" MPE (GAUGE TEE) ____'N C/L & ____'W C/L TEE TAP 2"X5/8" MPE (BYPASS TEE) ____'N C/L & ____'W C/L ELBOW 2"X90° MPE 313'N C/L & 10'W C/L ____'N C/L & ____'W C/L ELBOW 2"X90° MPE 331'N C/L & 10'W C/L ____'N C/L & ____'W C/L ELBOW 2"X90° MPE 331'N C/L & 12'W C/L ____'N C/L & ____'W C/L TEE TAP 2"X5/8" MPE (BYPASS TEE) ____'N C/L & ____'W C/L CUT & CAP CAP 2" MPE 347'N C/L & 12'W C/L ____'N C/L & ____'W C/L PROPOSED 1-1/8" MPE SVC TIE-IN 318'N C/L 10'W C/L PROPOSED 1-1/8" MPE SVC TIE-IN 331'N C/L 10'W C/L PROPOSED 1-1/8" MPE SVC TIE-IN 335'N C/L 12'W C/L PROPOSED 1-1/8" MPE SVC TIE-IN 329'N C/L 10'W C/L PROPOSED 1-1/8" MPE SVC TIE-IN 335'N C/L 12'W C/L 2x ELBOW 2"X90° MPE (SQUEEZE & FUSE TIE IN) 313'N C/L & 12'W C/L ____'N C/L & ____'W C/L 2x ELBOW 2"X90° MPE (SQUEEZE & FUSE TIE IN) 349'N C/L & 12'W C/L ____'N C/L & ____'W C/L TOP OF PROPOSED 1-1/8" STUB TO BE BURIED AT 5' 7" FROM TOP OF GRADE TO CLEAR CITIES PROPOSED 18" STORM DRAIN & 8" WATER PIPE. BOTTOM OF LOWEST UTILITY WILL BE APPROXIMATELY 5' 1" FROM TOP OF GRADE. TEE TAP 2"X5/8" MPE (GAUGE TEE) ____'N C/L & ____'W C/L TEE TAP 2"X5/8" MPE (GAUGE TEE) ____'N C/L & ____'W C/L (_ _ _ _ ' ) 18' proposed (____') 2' proposed (____') 2' proposed (_ _ _ _ ' ) 19' proposed TOP OF PROPOSED 1-1/8" STUB TO BE BURIED AT 5' 7" FROM TOP OF GRADE TO CLEAR CITIES PROPOSED 18" STORM DRAIN & 8" WATER PIPE. BOTTOM OF LOWEST UTILITY WILL BE APPROXIMATELY 5' 1" FROM TOP OF GRADE. TEST AND TIE INTO NEW 2" MAIN TEE TAP 2"X5/8" MPE (BYPASS TEE) ____'N C/L & ____'W C/L TEE TAP 2"X5/8" MPE (BYPASS TEE) ____'N C/L & ____'W C/L PIPE 5/8" MPE BYPASS ELBOW 2"X90° MPE 623'N C/L & 20'W C/L ____'N C/L & ____'W C/L TEST AND TIE INTO NEW 2" MAIN (____') 8' proposed (____') 8' proposed Scale: NTS TIE IN DETAIL2 5 Scale: NTS TIE IN DETAIL1 5 LOWER 2" MPE GAS BY 3' 1" TO CLEAR CITIES PROPOSED 12" & 18" STORM DRAINS. BOTTOM OF LOWEST UTILITY WILL BE APPROXIMATELY 5' FROM TOP OF GRADE. TOP OF GAS WILL NEED TO BE AT LEAST 6' FROM TOP OF GRADE TO PROVIDE SUFFICIENT CLEARANCE. 12315 12323 12401 12 3 1 4 17 0 5 4 1 7 0 4 5 17 0 4 6 1 7 0 4 0 17 0 3 9 25'25' 50' R/W 25'25' 50' R/W 30' 30' 60' R/W 30' 30' 60' R/W IP GAS FLOWIP GAS FLOW Inspected Steel and PE pipe per GOS 2450.1400 and 2450.1500 Reviewed and complied with all construction notes. Recorded all required information on the as-built per GOS 2500.1700. Completed post installation inspection per GOS 2525.1200 and 2525.2700. Left the work area in a clean and safe condition. FITTER'S CHECKLIST Foreman's Name (printed) ___________________________________ Foreman's Signature________________________________________ Company: InfraSource Construction Date ______________ (CHECK BOX TO CONFIRM COMPLETION) 4680 06/11 THIS SKETCH NOT TO BE RELIED UPON FOR EXACT LOCATION OF EXISTING FACILITIES CALL 811 AT LEAST 2 BUSINESS DAYS BEFORE YOU DIG For contacts below dial 1-888-CALL PSE (225-5773) "Locates Required" "Flagging Required" Yes No Yes No Cell Phone: Project Manager Contact Information: E-Mail: Name: 206-379-4347 DUSTIN.WELLER@PSE.COM DUSTIN WELLER N/A 109141781 N/A 1"=20'6 / 10 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A DESIGNED BY PUGET SOUND ENERGY UTILITIES CONTACT PHONE# COUNTY 1/4 SEC OP MAP Emer Sect GAS WK CTR PLAT MAP JOINT FACILITIES ARRANGEMENTS DRAWN BY CHECKED BY APPROVED BY CP APPROVAL MAPPING SCALE PAGE ENGR - GAS FUNCTION PROJECT MGR PERMITREAL ESTATE/EASEMENT 2 1 REV# 3 DATE DESCRIPTIONBY CONTACT PHONE NO DATE Drawing Number SAP Sup Order Nbr RENTON PUBLIC IMPROVEMENT SE 172ND ST STORMWATER IMPR. PROJECT SE 172ND ST & 125TH PL SE, RENTON, WA PLOT PLAN F SCALE: 1" = 20'-0" MA T C H L I N E E - E SE E P A G E 4 MATCHLINE F-F SEE PAGE 7 MA T C H L I N E G - G SE E P A G E 8 IP GAS FLOW D.SANTIAGO 425.738.8705 206.379.4347D.WELLER D.SANTIAGO 425.738.8705 2/28/25 2/28/25 2/28/25 10 9 1 4 1 7 8 1 IP G A S F L O W IP G A S F L O W 1 6 TEE TAP 2"X5/8" MPE (GAUGE TEE) ____'S C/L & ____'W C/L CUT & CAP CAP 2" MPE 12'S C/L & 57'W C/L ____'S C/L & ____'W C/L 2x ELBOW 2"X90° MPE (SQUEEZE & FUSE TIE IN) 12'S C/L & 58'W C/L ____'S C/L & ____'W C/L TEE TAP 2"X5/8" MPE (GAUGE TEE) ____'S C/L & ____'W C/L CUT & CAP CAP 2" MPE 12'S C/L & 48'W C/L ____'S C/L & ____'W C/L 2x ELBOW 2"X90° MPE (SQUEEZE & FUSE TIE IN) 12'S C/L & 47'W C/L ____'S C/L & ____'W C/L LOWER 2" MPE IP GAS BY 1' 1" TO CLEAR CITIES PROPOSED 12" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 3' 8" FROM TOP OF GRADE. TOP OF GAS WILL NEED TO BE AT LEAST 4' 8" FROM TOP OF GRADE TO PROVIDE SUFFICIENT CLEARANCE. LOWER 2" MPE IP GAS BY 1' 1" TO CLEAR CITIES PROPOSED 12" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 3' 8" FROM TOP OF GRADE. TOP OF GAS WILL NEED TO BE AT LEAST 4' 8" FROM TOP OF GRADE TO PROVIDE SUFFICIENT CLEARANCE. KING 132A CSPSKGPI SW-28-23-5 / SE-28-23-5 212.080 213.084 / 213.085 Scale: NTS TIE IN DETAIL1 6 (____') 11' proposed 17 0 3 4 170 2 5 17 0 3 3 17 0 2 6 17 0 1 7 17012 17 0 1 1 17 0 0 3 17 0 0 4 17 0 1 8 25'25' 50' R/W 25'25' 50' R/W 17 0 0 4 17 0 0 3 IP G A S F L O W IP G A S F L O W IP G A S F L O W IP G A S F L O W IP G A S F L O W Inspected Steel and PE pipe per GOS 2450.1400 and 2450.1500 Reviewed and complied with all construction notes. Recorded all required information on the as-built per GOS 2500.1700. Completed post installation inspection per GOS 2525.1200 and 2525.2700. Left the work area in a clean and safe condition. FITTER'S CHECKLIST Foreman's Name (printed) ___________________________________ Foreman's Signature________________________________________ Company: InfraSource Construction Date ______________ (CHECK BOX TO CONFIRM COMPLETION) 4680 06/11 THIS SKETCH NOT TO BE RELIED UPON FOR EXACT LOCATION OF EXISTING FACILITIES CALL 811 AT LEAST 2 BUSINESS DAYS BEFORE YOU DIG For contacts below dial 1-888-CALL PSE (225-5773) "Locates Required" "Flagging Required" Yes No Yes No Cell Phone: Project Manager Contact Information: E-Mail: Name: 206-379-4347 DUSTIN.WELLER@PSE.COM DUSTIN WELLER N/A 109141781 N/A 1"=20'7 / 10 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A DESIGNED BY PUGET SOUND ENERGY UTILITIES CONTACT PHONE# COUNTY 1/4 SEC OP MAP Emer Sect GAS WK CTR PLAT MAP JOINT FACILITIES ARRANGEMENTS DRAWN BY CHECKED BY APPROVED BY CP APPROVAL MAPPING SCALE PAGE ENGR - GAS FUNCTION PROJECT MGR PERMITREAL ESTATE/EASEMENT 2 1 REV# 3 DATE DESCRIPTIONBY CONTACT PHONE NO DATE Drawing Number SAP Sup Order Nbr RENTON PUBLIC IMPROVEMENT SE 172ND ST STORMWATER IMPR. PROJECT SE 172ND ST & 125TH PL SE, RENTON, WA PLOT PLAN G SCALE: 1" = 20'-0" MATCHLINE F-F SEE PAGE 6 3 7 TEE TAP 2"X5/8" MPE (GAUGE TEE) ____'N C/L & ____'W C/L TEE TAP 2"X5/8" MPE (GAUGE TEE) ____'N C/L & ____'W C/L CUT & CAP CAP 2" MPE 323'N C/L & 12'W C/L ____'N C/L & ____'W C/L CUT & CAP CAP 2" MPE 331'N C/L & 12'W C/L ____'N C/L & ____'W C/L 2x ELBOW 2"X90° MPE (SQUEEZE & FUSE TIE IN) 322'N C/L & 12'W C/L ____'N C/L & ____'W C/L 2x ELBOW 2"X90° MPE (SQUEEZE & FUSE TIE IN) 332'N C/L & 12'W C/L ____'N C/L & ____'W C/L IP G A S F L O W D.SANTIAGO 425.738.8705 206.379.4347D.WELLER D.SANTIAGO 425.738.8705 2/28/25 2/28/25 2/28/25 10 9 1 4 1 7 8 1 IP G A S F L O W 2 7 1 7 TEE TAP 2"X5/8" MPE (GAUGE TEE) ____'N C/L & ____'W C/L TEE TAP 2"X5/8" MPE (GAUGE TEE) ____'N C/L & ____'W C/L LOWER 2" MPE GAS BY 1' 4" TO CLEAR CITIES PROPOSED 12" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 3' 10" FROM TOP OF GRADE. TOP OF GAS WILL NEED TO BE AT LEAST 4' 10" FROM TOP OF GRADE TO PROVIDE SUFFICIENT CLEARANCE. CUT & CAP CAP 2" MPE 460'N C/L & 12'W C/L ____'N C/L & ____'W C/L CUT & CAP CAP 2" MPE 470'N C/L & 12'W C/L ____'N C/L & ____'W C/L 2x ELBOW 2"X90° MPE (SQUEEZE & FUSE TIE IN) 459'N C/L & 12'W C/L ____'N C/L & ____'W C/L 2x ELBOW 2"X90° MPE (SQUEEZE & FUSE TIE IN) 471'N C/L & 12'W C/L ____'N C/L & ____'W C/L CUT & CAP CAP 2" MPE 587'N C/L & 12'W C/L ____'N C/L & ____'W C/L ELBOW 2"X90° MPE 622'N C/L & 19'W C/L ____'N C/L & ____'W C/L CUT & CAP CAP 2" MPE 621'N C/L & 12'W C/L ____'N C/L & ____'W C/L ELBOW 2"X90° MPE 586'N C/L & 19'W C/L ____'N C/L & ____'W C/L ELBOW 2"X90° MPE (SQUEEZE & FUSE TIE IN) 586'N C/L & 12'W C/L ____'N C/L & ____'W C/L ELBOW 2"X90° MPE (SQUEEZE & FUSE TIE IN) 622'N C/L & 12'W C/L ____'N C/L & ____'W C/L LOWER 2" MPE GAS BY 3' 5" TO CLEAR CITIES PROPOSED 18" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 4' 7" FROM TOP OF GRADE. TOP OF GAS WILL NEED TO BE AT LEAST 5' 7" FROM TOP OF GRADE TO PROVIDE SUFFICIENT CLEARANCE. LOWER 2" MPE GAS BY 3' 5" TO CLEAR CITIES PROPOSED 18" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 4' 7" FROM TOP OF GRADE. TOP OF GAS WILL NEED TO BE AT LEAST 5' 7" FROM TOP OF GRADE TO PROVIDE SUFFICIENT CLEARANCE. LOWER 2" MPE GAS BY 1' 4" TO CLEAR CITIES PROPOSED 12" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 3' 10" FROM TOP OF GRADE. TOP OF GAS WILL NEED TO BE AT LEAST 4' 10" FROM TOP OF GRADE TO PROVIDE SUFFICIENT CLEARANCE. TEST AND TIE INTO NEW 2" MAIN PROPOSED 1-1/8" MPE SVC TIE-IN 605'N C/L 19'W C/L (_ _ _ _ ' ) 17' proposed (____') 7' proposed TOP OF PROPOSED 1-1/8" STUB TO BE BURIED AT LEAST 4' 10" FROM TOP OF GRADE TO CLEAR CITIES PROPOSED 18" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 4' 4" FROM TOP OF GRADE. KING 132A CSPSKGPI SW-28-23-5 / SE-28-23-5 212.080 213.084 / 213.085 PROPOSED 1-1/8" MPE SVC 619'N C/L 19'W C/L TEE TAP 2"X5/8" MPE (GAUGE TEE) ____'N C/L & ____'W C/L TEE TAP 2"X5/8" MPE (GAUGE TEE) ____'N C/L & ____'W C/L TEE TAP 2"X5/8" MPE (BYPASS TEE) ____'N C/L & ____'W C/L TEE TAP 2"X5/8" MPE (BYPASS TEE) ____'N C/L & ____'W C/L PROPOSED 1-1/8" MPE SVC 619'N C/L 19'W C/L TEST AND TIE INTO NEW 2" MAIN PROPOSED 1-1/8" MPE SVC TIE-IN 605'N C/L 19'W C/L TOP OF PROPOSED 1-1/8" STUB TO BE BURIED AT LEAST 4' 10" FROM TOP OF GRADE TO CLEAR CITIES PROPOSED 18" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 4' 4" FROM TOP OF GRADE. (____') 7' proposed Scale: NTS TIE IN DETAIL1 7 PIPE 5/8" MPE BYPASS Scale: NTS TIE IN DETAIL2 7 (_ _ _ _ ' ) 12 ' p r o p o s e d Scale: NTS TIE IN DETAIL3 7 (_ _ _ _ ' ) 10 ' p r o p o s e d (_ _ _ _ ' ) 19' proposed ELBOW 2"X90° MPE 332'N C/L & 14'W C/L ____'N C/L & ____'W C/L ELBOW 2"X90° MPE 322'N C/L & 14'W C/L ____'N C/L & ____'W C/L (____') 2' p r o p o s e d (____') 2' p r o p o s e d (____') 2' p r o p o s e d (____') 2' p r o p o s e d ELBOW 2"X90° MPE 459'N C/L & 14'W C/L ____'N C/L & ____'W C/L ELBOW 2"X90° MPE 471'N C/L & 14'W C/L ____'N C/L & ____'W C/L 12407 17 1 2 1 17 1 2 0 17 1 1 2 17 1 1 5 1 7 1 0 9 12415 30' 30' 60' R/W 30' 30' 60' R/W 30'30' 60' R/W 30'30' 60' R/W IP GAS FLOWIP GAS FLOW ROPE PROPOSED PIPE 2" MPE IP MAIN Inspected Steel and PE pipe per GOS 2450.1400 and 2450.1500 Reviewed and complied with all construction notes. Recorded all required information on the as-built per GOS 2500.1700. Completed post installation inspection per GOS 2525.1200 and 2525.2700. Left the work area in a clean and safe condition. FITTER'S CHECKLIST Foreman's Name (printed) ___________________________________ Foreman's Signature________________________________________ Company: InfraSource Construction Date ______________ (CHECK BOX TO CONFIRM COMPLETION) 4680 06/11 THIS SKETCH NOT TO BE RELIED UPON FOR EXACT LOCATION OF EXISTING FACILITIES CALL 811 AT LEAST 2 BUSINESS DAYS BEFORE YOU DIG For contacts below dial 1-888-CALL PSE (225-5773) "Locates Required" "Flagging Required" Yes No Yes No Cell Phone: Project Manager Contact Information: E-Mail: Name: 206-379-4347 DUSTIN.WELLER@PSE.COM DUSTIN WELLER N/A 109141781 N/A 1"=20'8 / 10 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A DESIGNED BY PUGET SOUND ENERGY UTILITIES CONTACT PHONE# COUNTY 1/4 SEC OP MAP Emer Sect GAS WK CTR PLAT MAP JOINT FACILITIES ARRANGEMENTS DRAWN BY CHECKED BY APPROVED BY CP APPROVAL MAPPING SCALE PAGE ENGR - GAS FUNCTION PROJECT MGR PERMITREAL ESTATE/EASEMENT 2 1 REV# 3 DATE DESCRIPTIONBY CONTACT PHONE NO DATE Drawing Number SAP Sup Order Nbr RENTON PUBLIC IMPROVEMENT SE 172ND ST STORMWATER IMPR. PROJECT SE 172ND ST & 125TH PL SE, RENTON, WA PLOT PLAN H SCALE: 1" = 20'-0" MA T C H L I N E G - G SE E P A G E 6 MATCHLINE H-H SEE PAGE 9 MA T C H L I N E I - I SE E P A G E 1 0 D.SANTIAGO 425.738.8705 206.379.4347D.WELLER D.SANTIAGO 425.738.8705 2/28/25 2/28/25 2/28/25 10 9 1 4 1 7 8 1 IP G A S F L O W IP G A S F L O W IP G A S F L O W IP GAS FLOW IP GAS FLOW IP G A S F L O W 1 8 PROPOSED 1-1/8" MPE SVC TIE-IN 12'S SE 172ND ST C/L 68'W 125TH AVE SE C/L TEE TAP 2"X5/8" MPE (GAUGE TEE) ____'S C/L & ____'W C/L LOWER 2" MPE IP GAS BY 1' 10" TO CLEAR CITIES PROPOSED 12" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 3' 10" FROM TOP OF GRADE. TOP OF GAS WILL NEED TO BE AT LEAST 4' 10" FROM TOP OF GRADE TO PROVIDE SUFFICIENT CLEARANCE. CUT & CAP CAP 2" MPE 12'S C/L & 61'W C/L ____'S C/L & ____'W C/L 2x ELBOW 2"X90° MPE (SQUEEZE & FUSE TIE IN) 12'S C/L & 62'W C/L ____'S C/L & ____'W C/L KING 132A CSPSKGPI SW-28-23-5 / SE-28-23-5 212.080 213.084 / 213.085 LOWER 2" MPE IP GAS BY 1' 10" TO CLEAR CITIES PROPOSED 12" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 3' 10" FROM TOP OF GRADE. TOP OF GAS WILL NEED TO BE AT LEAST 4' 10" FROM TOP OF GRADE TO PROVIDE SUFFICIENT CLEARANCE. LOWER 2" MPE IP GAS BY 1' 3" TO CLEAR CITIES PROPOSED 12" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 3' 4" FROM TOP OF GRADE. TOP OF GAS WILL NEED TO BE AT LEAST 4' 4" FROM TOP OF GRADE TO PROVIDE SUFFICIENT CLEARANCE. Scale: NTS TIE IN DETAIL1 8 (____') 42' proposed TEE TAP 2"X5/8" MPE (GAUGE TEE) ____'S C/L & ____'W C/L CUT & CAP CAP 2" MPE 12'S C/L & 21'W C/L ____'S C/L & ____'W C/L 2x ELBOW 2"X90° MPE (SQUEEZE & FUSE TIE IN) 12'S C/L & 20'W C/L ____'S C/L & ____'W C/L LOWER 2" MPE IP GAS BY 1' 3" TO CLEAR CITIES PROPOSED 12" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 3' 4" FROM TOP OF GRADE. TOP OF GAS WILL NEED TO BE AT LEAST 4' 4" FROM TOP OF GRADE TO PROVIDE SUFFICIENT CLEARANCE. TOP OF FUTURE SEWER WILL BE APPROXIMATELY 8' 3" FROM TOP OF GRADE CLOSE TO PROPOSED TIE IN LOCATION. MAKE SURE SUFFICIENT VERTICAL CLEARANCE EXISTS. TOP OF FUTURE SEWER WILL BE APPROXIMATELY 8' 3" FROM TOP OF GRADE CLOSE TO PROPOSED TIE IN LOCATION. MAKE SURE SUFFICIENT VERTICAL CLEARANCE EXISTS. 17103 16 8 6 3 16 8 8 2 17 0 1 7 1 7 0 1 1 17 0 2 5 17 0 0 3 16 8 6 8 30'30' 60' R/W 25' 25' 50' R/W IP GAS FLOWIP GAS FLOW IP G A S F L O W IP G A S F L O W 17 0 1 7 ROPE PROPOSED PIPE 2" MPE IP MAIN Inspected Steel and PE pipe per GOS 2450.1400 and 2450.1500 Reviewed and complied with all construction notes. Recorded all required information on the as-built per GOS 2500.1700. Completed post installation inspection per GOS 2525.1200 and 2525.2700. Left the work area in a clean and safe condition. FITTER'S CHECKLIST Foreman's Name (printed) ___________________________________ Foreman's Signature________________________________________ Company: InfraSource Construction Date ______________ (CHECK BOX TO CONFIRM COMPLETION) 4680 06/11 THIS SKETCH NOT TO BE RELIED UPON FOR EXACT LOCATION OF EXISTING FACILITIES CALL 811 AT LEAST 2 BUSINESS DAYS BEFORE YOU DIG For contacts below dial 1-888-CALL PSE (225-5773) "Locates Required" "Flagging Required" Yes No Yes No Cell Phone: Project Manager Contact Information: E-Mail: Name: 206-379-4347 DUSTIN.WELLER@PSE.COM DUSTIN WELLER N/A 109141781 N/A 1"=20'9 / 10 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A DESIGNED BY PUGET SOUND ENERGY UTILITIES CONTACT PHONE# COUNTY 1/4 SEC OP MAP Emer Sect GAS WK CTR PLAT MAP JOINT FACILITIES ARRANGEMENTS DRAWN BY CHECKED BY APPROVED BY CP APPROVAL MAPPING SCALE PAGE ENGR - GAS FUNCTION PROJECT MGR PERMITREAL ESTATE/EASEMENT 2 1 REV# 3 DATE DESCRIPTIONBY CONTACT PHONE NO DATE Drawing Number SAP Sup Order Nbr RENTON PUBLIC IMPROVEMENT SE 172ND ST STORMWATER IMPR. PROJECT SE 172ND ST & 125TH PL SE, RENTON, WAPLOT PLAN I SCALE: 1" = 20'-0" MATCHLINE H-H SEE PAGE 8 TEE TAP 2"X5/8" MPE (GAUGE TEE) ____'N C/L & ____'W C/L ELBOW 2"X90° MPE 16'N C/L & 21'W C/L ____'N C/L & ____'W C/L PROPOSED PIPE 2" MPE IP MAIN 21'W C/L __'W C/L (____') 9' proposed CUT & CAP CAP 2" MPE 17'N C/L & 12'W C/L ____'N C/L & ____'W C/L ELBOW 2"X90° MPE (SQUEEZE & FUSE TIE IN) 16'N C/L & 12'W C/L ____'N C/L & ____'W C/L D.SANTIAGO 425.738.8705 206.379.4347D.WELLER D.SANTIAGO 425.738.8705 2/28/25 2/28/25 2/28/25 10 9 1 4 1 7 8 1 3 9 1 9 TEST AND TIE INTO NEW 2" MAIN (_ _ _ _ ' ) PROPOSED 1-1/8" MPE SVC TIE-IN 126'N C/L 17'W C/L TOP OF PROPOSED 1-1/8" STUB TO BE BURIED AT 3' 10" FROM TOP OF GRADE TO CLEAR CITIES PROPOSED 18" STORM DRAIN. TOP OF STORM DRAIN WILL BE APPROXIMATELY 4' 7" FROM TOP OF GRADE. INSTALL NEW 2" MPE IP GAS MAIN AT LEAST 4' 2" FROM TOP OF GRADE TO CLEAR CITIES PROPOSED 18" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 3' 2" FROM TOP OF GRADE. INSTALL NEW 2" MPE IP GAS MAIN AT LEAST 5' 5" FROM TOP OF GRADE TO CLEAR PROPOSED 6" SEWER SERVICE. BOTTOM OF SEWER SERVICE WILL BE APPROXIMATELY 4' 5" FROM TOP OF GRADE. IP G A S F L O W IP G A S F L O W IP G A S F L O W TEE TAP 2"X5/8" MPE (BYPASS TEE) ____'N C/L & ____'W C/L 2x ELBOW 2"X90° MPE 317'N C/L & 27'W C/L ____'N C/L & ____'W C/L PROPOSED PIPE 2" MPE IP MAIN 4'W C/L __'W C/L (____') 15' proposed CUT & CAP CAP 2" MPE 316'N C/L & 12'W C/L ____'N C/L & ____'W C/L ELBOW 2"X90° MPE (SQUEEZE & FUSE TIE IN) 317'N C/L & 12'W C/L ____'N C/L & ____'W C/L (_ _ _ _ ' ) 23 ' p r o p o s e d 4 9 TEE TAP 1-1/4"X5/8" MPE (GAUGE TEE) ____'S C/L & ____'E C/L TEE TAP 1-1/4"X5/8" MPE (GAUGE TEE) ____'S C/L & ____'E C/L CUT & CAP CAP 1-1/4" PEI-A 18'S C/L & 19'E C/L ____'S C/L & ____'E C/L CUT & CAP CAP 1-1/4" PIE-A 18'S C/L & 10'E C/L ____'S C/L & ____'E C/L 2x ELBOW 1-1/4"X90° MPE (SQUEEZE & FUSE TIE IN) 18'S C/L & 20'E C/L ____'S C/L & ____'E C/L 2x ELBOW 1-1/4"X90° MPE (SQUEEZE & FUSE TIE IN) 18'S C/L & 9'E C/L ____'S C/L & ____'E C/L LOWER 1-1/4" PEI-A IP GAS BY 1' TO CLEAR CITIES PROPOSED 12" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 3' 3" FROM TOP OF GRADE. TOP OF GAS WILL NEED TO BE AT LEAST 4' 3" FROM TOP OF GRADE TO PROVIDE SUFFICIENT CLEARANCE. IP GAS FLOW KING 132A CSPSKGPI SW-28-23-5 / SE-28-23-5 212.080 213.084 / 213.085 TEST AND TIE INTO NEW 2" MAIN TEST AND TIE INTO NEW 2" MAIN TEST AND TIE INTO NEW 2" MAIN PROPOSED 1-1/8" MPE SVC TIE-IN 260'N C/L 17'W C/L PROPOSED 1-1/8" MPE SVC TIE-IN 270'N C/L 17'W C/L TEE TAP 2"X5/8" MPE (BYPASS TEE) ____'N C/L & ____'W C/L TEE TAP 2"X5/8" MPE (BYPASS TEE) ____'N C/L & ____'W C/L PIPE 5/8" MPE BYPASS (_ _ _ _ ' ) 28 9 ' p r o p o s e d TEE TAP 2"X5/8" MPE (GAUGE TEE) ____'N C/L & ____'W C/L TEE TAP 2"X5/8" MPE (BYPASS TEE) ____'N C/L & ____'W C/L 2x ELBOW 2"X90° MPE 305'N C/L & 27'W C/L ____'N C/L & ____'W C/L ELBOW 2"X90° MPE 305'N C/L & 17'W C/L ____'N C/L & ____'W C/L (____') 10' proposed PIPE 5/8" MPE BYPASS TOP OF PROPOSED 1-1/8" STUB TO BE BURIED AT 3' 10" FROM TOP OF GRADE TO CLEAR CITIES PROPOSED 12" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 3' 4" FROM TOP OF GRADE. TOP OF PROPOSED 1-1/8" STUB TO BE BURIED AT 4' 6" FROM TOP OF GRADE TO CLEAR CITIES PROPOSED 18" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 3' 11" FROM TOP OF GRADE. TOP OF PROPOSED 1-1/8" STUB TO BE BURIED AT 4' 6" FROM TOP OF GRADE TO CLEAR CITIES PROPOSED 18" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 3' 11" FROM TOP OF GRADE. INSTALL NEW 2" MPE IP GAS MAIN AT LEAST 4' 2" FROM TOP OF GRADE TO CLEAR CITIES PROPOSED 18" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 3' 2" FROM TOP OF GRADE. LOWER 1-1/4" PEI-A IP GAS BY 1' TO CLEAR CITIES PROPOSED 12" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 3' 3" FROM TOP OF GRADE. TOP OF GAS WILL NEED TO BE AT LEAST 4' 3" FROM TOP OF GRADE TO PROVIDE SUFFICIENT CLEARANCE. Scale: NTS TIE IN DETAIL4 9 (____') 11' proposed (_ _ _ _ ' ) 12 ' p r o p o s e d Scale: NTS TIE IN DETAIL3 9 Scale: NTS TIE IN DETAIL1 9 (_ _ _ _ ' ) 2 9 Scale: NTS TIE IN DETAIL2 9 (____') 4' proposed ELBOW 2"X90° MPE 146'N C/L & 21'W C/L ____'N C/L & ____'W C/L ELBOW 2"X90° MPE 146'N C/L & 17'W C/L ____'N C/L & ____'W C/L ELBOW 2"X90° MPE 167'N C/L & 17'W C/L ____'N C/L & ____'W C/L ELBOW 2"X90° MPE 167'N C/L & 21'W C/L ____'N C/L & ____'W C/L (____') 4' proposed (_ _ _ _ ' ) 21 ' p r o p o s e d ELBOW 2"X90° MPE 39'N C/L & 21'W C/L ____'N C/L & ____'W C/L (____') 24' prop. ELBOW 2"X90° MPE 39'N C/L & 17'W C/L ____'N C/L & ____'W C/L 12505 12513 12514 12521 12527 12520 12541 12535 30' 30' 60' R/W 30' 30' 60' R/W 25'25' 50' R/W IP GAS FLOW IP GAS FLOW IP G A S F L O W IP GAS FLOW ROPE PROPOSED PIPE 2" MPE IP MAIN Inspected Steel and PE pipe per GOS 2450.1400 and 2450.1500 Reviewed and complied with all construction notes. Recorded all required information on the as-built per GOS 2500.1700. Completed post installation inspection per GOS 2525.1200 and 2525.2700. Left the work area in a clean and safe condition. FITTER'S CHECKLIST Foreman's Name (printed) ___________________________________ Foreman's Signature________________________________________ Company: InfraSource Construction Date ______________ (CHECK BOX TO CONFIRM COMPLETION) 4680 06/11 THIS SKETCH NOT TO BE RELIED UPON FOR EXACT LOCATION OF EXISTING FACILITIES CALL 811 AT LEAST 2 BUSINESS DAYS BEFORE YOU DIG For contacts below dial 1-888-CALL PSE (225-5773) "Locates Required" "Flagging Required" Yes No Yes No Cell Phone: Project Manager Contact Information: E-Mail: Name: 206-379-4347 DUSTIN.WELLER@PSE.COM DUSTIN WELLER N/A 109141781 N/A 1"=20'10 / 10 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A DESIGNED BY PUGET SOUND ENERGY UTILITIES CONTACT PHONE# COUNTY 1/4 SEC OP MAP Emer Sect GAS WK CTR PLAT MAP JOINT FACILITIES ARRANGEMENTS DRAWN BY CHECKED BY APPROVED BY CP APPROVAL MAPPING SCALE PAGE ENGR - GAS FUNCTION PROJECT MGR PERMITREAL ESTATE/EASEMENT 2 1 REV# 3 DATE DESCRIPTIONBY CONTACT PHONE NO DATE Drawing Number SAP Sup Order Nbr RENTON PUBLIC IMPROVEMENT SE 172ND ST STORMWATER IMPR. PROJECT SE 172ND ST & 125TH PL SE, RENTON, WA PLOT PLAN J SCALE: 1" = 20'-0" MA T C H L I N E I - I SE E P A G E 7 D.SANTIAGO 425.738.8705 206.379.4347D.WELLER D.SANTIAGO 425.738.8705 2/28/25 2/28/25 2/28/25 10 9 1 4 1 7 8 1 IP G A S F L O W IP GAS FLOW IP GAS FLOW IP GAS FLOW CUT & CAP CAP 2" MPE 12'S C/L & 211'E C/L ____'S C/L & ____'E C/L ELBOW 2"X90° MPE 7'S C/L & 197'E C/L ____'S C/L & ____'E C/L ELBOW 2"X90° MPE 7'S C/L & 217'E C/L ____'S C/L & ____'E C/L 2x ELBOW 2"X90° MPE (SQUEEZE & FUSE TIE IN) 12'S C/L & 197'E C/L ____'S C/L & ____'E C/L 2x ELBOW 2"X90° MPE (SQUEEZE & FUSE TIE IN) 12'S C/L & 217'E C/L ____'S C/L & ____'E C/L LOWER 2" MPE GAS BY 1' 5" TO CLEAR CITIES PROPOSED 12" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 3' 5" FROM TOP OF GRADE. TOP OF GAS WILL NEED TO BE AT LEAST 4' 5" FROM TOP OF GRADE TO PROVIDE SUFFICIENT CLEARANCE. 1 10 TEE TAP 2"X5/8" MPE (GAUGE TEE) ____'S C/L & ____'E C/L CUT & CAP CAP 2" MPE 12'S C/L & 198'E C/L ____'S C/L & ____'E C/L TEE TAP 2"X5/8" MPE (GAUGE TEE) ____'S C/L & ____'E C/L LOWER 2" MPE GAS BY 1' 5" TO CLEAR CITIES PROPOSED 12" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 3' 5" FROM TOP OF GRADE. TOP OF GAS WILL NEED TO BE AT LEAST 4' 5" FROM TOP OF GRADE TO PROVIDE SUFFICIENT CLEARANCE. 2 10 TEE TAP 2"X5/8" MPE (GAUGE TEE) ____'S C/L & ____'E C/L TEE TAP 2"X5/8" MPE (GAUGE TEE) ____'S C/L & ____'E C/L CUT & CAP CAP 2" MPE 12'S C/L & 334'E C/L ____'S C/L & ____'E C/L CUT & CAP CAP 2" MPE 11'S C/L & 391'E C/L ____'S C/L & ____'E C/L ELBOW 2"X90° MPE 7'S C/L & 333'E C/L ____'S C/L & ____'E C/L ELBOW 2"X90° MPE 7'S C/L & 392'E C/L ____'S C/L & ____'E C/L CUT & CAP CAP 2" MPE 8'S C/L & 358'E C/L ____'S C/L & ____'E C/L 2x ELBOW 2"X90° MPE (SQUEEZE & FUSE TIE IN) 12'S C/L & 333'E C/L ____'S C/L & ____'E C/L 2x ELBOW 2"X90° MPE (SQUEEZE & FUSE TIE IN) 11'S C/L & 392'E C/L ____'S C/L & ____'E C/L TEE 2"X2" INLINE TEE (SQUEEZE & FUSE TIE IN) 7'S C/L & 358'E C/L ____'S C/L & ____'E C/L (_ _ _ _ ' ) 5' p r o p o s e d (_ _ _ _ ' ) 4' p r o p o s e d 34 ' p r o p . (____') LOWER 2" MPE GAS BY 2' 2" TO CLEAR CITIES PROPOSED 18" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 4' 2" FROM TOP OF GRADE. TOP OF GAS WILL NEED TO BE AT LEAST 5' 2" FROM TOP OF GRADE TO PROVIDE SUFFICIENT CLEARANCE. LOWER 2" MPE GAS BY 2' 2" TO CLEAR CITIES PROPOSED 18" STORM DRAIN. BOTTOM OF STORM DRAIN WILL BE APPROXIMATELY 4' 2" FROM TOP OF GRADE. TOP OF GAS WILL NEED TO BE AT LEAST 5' 2" FROM TOP OF GRADE TO PROVIDE SUFFICIENT CLEARANCE. KING 132A CSPSKGPI SW-28-23-5 / SE-28-23-5 212.080 213.084 / 213.085 (_ _ _ _ ' ) 5' p r o p o s e d (_ _ _ _ ' ) 5' p r o p o s e d PIPE 5/8" MPE BYPASS TEE TAP 2"X5/8" MPE (BYPASS TEE) ____'N C/L & ____'E C/L PIPE 5/8" MPE BYPASS TEE TAP 2"X5/8" MPE (BYPASS TEE) ____'N C/L & ____'E C/L TEE TAP 2"X5/8" MPE (BYPASS TEE) ____'N C/L & ____'E C/L TEE TAP 2"X5/8" MPE (GAUGE TEE) ____'N C/L & ____'E C/L Scale: NTS TIE IN DETAIL2 10 (____') 25' proposed Scale: NTS TIE IN DETAIL1 10 (____') 20' proposed UTILITY POTHOLE DATA 1 Cheyenne Covington From:Paj Hwang <phwang@sooscreek.com> Sent:Monday, February 12, 2024 1:28 PM To:Cheyenne Covington; Greg Hill Cc:Kevin Evans; Joe Farah; Robert Parish; Nate Miller; Timothy Fierro Subject:RE: SE 172nd Street Storm Project - Force Main and Water Main relocation Categories:Renton CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you know the content is safe. Hi Cheyenne, Please see replies in red below. Our crew member(s) are willing to meet with the surveyor to go over this in the field to clarify any confusion. We can also chat more about this in our mee!ng today. Thank you, Paj ------ Could you confirm the following informa!on for these new potholes: 1. For the potholes of abandoned AC watermain along the north side of 172nd St: a. Survey includes PK and blue flagging. Could you confirm the blue flagging is at actual u!lity pothole of the AC water? The PK nails are o set from the location of our abandoned AC water main, at varied o sets as listed below. It’s unclear from the attached survey if the unfilled circles are the PK nail locations and that the solid filled circles the AC water main. Will want to confirm/clarify this with DHA as his red callout notes say both pothole and pk nail. The 8 total potholed AC locations we have with addresses and o sets for PK nails are listed below (rp is reference point): Ph 1 12210 se 172nd in driveway 2.95 3 deep 53 north from rp 1.53 north from speed bump sign Ph 2 Corner of 123rd Ave se and se 172nd st 3.35 3 deep 53 north of rp Ph3 East corner of 123rd Ave se and se 172nd st 2.75 3 deep 3 3 north of rp Ph4 12314 se 172nd st 2.6 3 deep 43 north of rp Directly south of the front door of residence 2 Ph5 12314 se 172nd st east side 2.853 deep 33 north of rp Directly south of farthest east window when looking north towards se 172nd st Ph 6 17054 124th Ave se 3.25 3 deep 43 north of rp On north East corner of 124th Ave se and se 172nd st Ph 7 17121 125th Ave se 2.13 deep 53 north of rp North West corner of 125 Ave se and se 172nd st Ph 8 North East side of se 172nd st and 125 Ave se 3.8 3 deep 3 3 north of rp b. One Water Profile in front of 12210 SE 172nd St does not PK or flagging. Could you confirm if that was a AC locate? Two PK nails were located at the above address is what our crews recalled. c. Do you have record depths for the AC Water pipes from these potholes PK 1: 2.95 ft deep with a 5 ft horizontal to the north near bump sign west of property. Pk 2: 3.35 ft deep with a 5 ft horizontal to the north. On the east side corner of 123rd & 172nd. 2. For the potholes of the Sewer force main on 125th AVE SE: a. No PK nails were noted, just asphalt patches. Could you confirm if these patches were at the force main potholes South of the roundabout, yes we potholed to confirm the force main. We can provide this data but need to find it. b. Do you have field measurements to the force main horizontal and ver!cal loca!ons at these potholes? No PK nails south of roundabout at 125th and 172nd. We did find 1 PK nail north of previous roundabout at 17121 125th Ave SE. 8.4 ft deep with a 5 ft horizontal. Ductile Iron pipe. Reference point to PK on power pole 3.6 ft east 2.6 ft north. Paj Hwang, PE Engineering Manager Soos Creek Water & Sewer District phwang@sooscreek.com 253.630.9900 ext. 105 https://www.sooscreek.com/ 3 From: Cheyenne Covington <cheyennec@osbornconsulting.com> Sent: Thursday, February 1, 2024 1:40 PM To: Greg Hill <GHill@sooscreek.com>; Paj Hwang <phwang@sooscreek.com> Cc: Kevin Evans <KREvans@Rentonwa.gov>; Joe Farah <jfarah@rentonwa.gov>; Robert Parish <robertp@osbornconsulting.com> Subject: RE: SE 172nd Street Storm Project - Force Main and Water Main relocation Hi Greg and Paj, AHached is the updated basemap print for the 172nd St GSI Project. This includes the new survey along 125th Ave SE to accommodate the an!cipated southern reloca!on of the sewer force main. The PDF also includes, in red text, the “new” Soos Cr u!lity potholes that had been completed a3er our last field survey. Could you confirm the following informa!on for these new potholes: 1. For the potholes of abandoned AC watermain along the north side of 172nd St: a. Survey includes PK and blue flagging. Could you confirm the blue flagging is at actual u!lity pothole of the AC water? b. One Water Profile in front of 12210 SE 172nd St does not PK or flagging. Could you confirm if that was a AC locate? c. Do you have record depths for the AC Water pipes from these potholes 2. For the potholes of the Sewer force main on 125th AVE SE: a. No PK nails were noted, just asphalt patches. Could you confirm if these patches were at the force main potholes b. Do you have field measurements to the force main horizontal and ver!cal loca!ons at these potholes? Per my conversa!on with Kevin today, it sounded like early next week you will be able to confirm the proposed extents of the water reloca!ons and sewer force main per the exhibit sent a3er our last mee!ng on 1/18/24. We are also wai!ng confirma!on if the water and sewer reloca!ons design contract will be directly with Soos Cr, rather than through the ILA. Thanks, Cheyenne Cheyenne Covington, PE, ENV SP, LEED AP Senior Project Manager Osborn Consulting direct. (360) 291-8867 office. (360) 354-9989 From: Greg Hill <GHill@sooscreek.com> Sent: Tuesday, January 9, 2024 10:18 AM To: Cheyenne Covington <cheyennec@osbornconsulting.com>; Kevin Evans <KREvans@Rentonwa.gov> Cc: Paj Hwang <phwang@sooscreek.com>; Greg Hill <GHill@sooscreek.com> Subject: RE: SE 172nd Street Storm Project - Force Main and Water Main relocation CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you know the content is safe. DATE: JOB #: CLIENT: POC: POTHOLE DATE POTHOLE # UTILITY TYPE TOP BOTTOM SIZE/WIDTH PIPE MATERIAL PIPE DIRECTION PIPE CONDITION OVERLAY THICKNESS SOIL TYPE CL OFFSET 1 CL OFFSET 2 5/26/2021 1 WATER 48" 54" 6" DUCTILE IRON N & S GOOD 6" GRAVEL/DIRT 10 ft east of 125 ave se 181ft noth of 171 st se 5/26/2021 2 WATER 48" 54" 6" DUCTILE IRON N & S GOOD 6" GRAVEL/DIRT 10 ft east of 125 ave se 125ft north of se 171 st 5/26/2021 3 WATER 52" 58" 6" DUCTILE IRON N & S GOOD 8" GRAVEL/DIRT 10ft east of 125 ave se 122ft north of se 172 st 5/26/2021 4 WATER 40" 46" 6" DUCTILE IRON N & S GOOD 7" GRAVEL/DIRT 11 feet east of 125th Ave se 56 ft north of se 172nd St 5/26/2021 5 WATER 47" 53" 6" DUCTILE IRON E & W GOOD 5" GRAVEL/DIRT 93ft east of 125 st se 12 ft north of se 172 st 5/26/2021 6 WATER 48" 54" 6"DUCTILE IRON E & W GOOD 5" GRAVEL 7 ft west of 123 ave se 14ft north of se 172 st 5/26/2021 7 WATER 52" 58" 6" DUCTILE IRON E & W GOOD 9" GRAVEL 14ft west of 122 ave se 14ft north of se 172 st Applied Professional Services Inc.5/27/2021 5877 OSBORN CONSULTING MAGGIE WILBANKS INADVERTENT DISCOVERY PLAN PLAN AND PROCEDURES FOR THE DISCOVERY OF CULTURAL RESOURCES AND HUMAN SKELETAL REMAINS To request ADA accommodation, including materials in a format for the visually impaired, call Ecology at 360-407-6000 or visit https://ecology.wa.gov/accessibility. People with impaired hearing may call Washington Relay Service at 711. People with a speech disability may call TTY at 877-833-6341. ECY 070-560 (rev. 06/21) 1 IDP Form Site Name(s): : Location County:Project Lead/Organization: •An accumulation of shell, burned rocks, or other food related materials. •Bones, intact or in small pieces. •An area of charcoal or very dark stained soil with artifacts. •Stone tools or waste flakes (for example, an arrowhead or stone chips). •Modified or stripped trees, often cedar or aspen, or other modified natural features, such as rock drawings. •Agricultural or logging materials that appear older than 50 years. These could include equipment, fencing, canals, spillways, chutes, derelict sawmills, tools, and many other items. •Clusters of tin cans or bottles, or other debris that appear older than 50 years. •Old munitions casings. Always assume these are live and never touch or move. •Buried railroad tracks, decking, foundations, or other industrial materials. •Remnants of homesteading. These could include bricks, nails, household items, toys, food containers, and other items associated with homes or farming sites. If this Inadvertent Discovery Plan (IDP) is for multiple (batched) projects, ensure the location information covers all project areas. 1.INTRODUCTION The IDP outlines procedures to perform in the event of a discovery of archaeological materials or human remains, in accordance with applicable state and federal laws. An IDP is required, as part of Agency Terms and Conditions for all grants and loans, for any project that creates disturbance above or below the ground. An IDP is not a substitute for a formal cultural resource review (Executive 21-02 or Section 106). Once completed, the IDP should always be kept at the project site during all project activities. All staff, contractors, and volunteers should be familiar with its contents and know where to find it. 2.CULTURAL RESOURCE DISCOVERIES A cultural resource discovery could be prehistoric or historic. Examples include (see images for further examples): The above list does not cover every possible cultural resource. When in doubt, assume the material is a cultural resource. 3. ON-SITE RESPONSIBILITIES If any employee, contractor, or subcontractor believes that they have uncovered cultural resources or human remains at any point in the project, take the following steps to Stop-Protect-Notify. If you suspect that the discovery includes human remains, also follow Sections 5 and 6. STEP A: Stop Work. All work must stop immediately in the vicinity of the discovery. STEP B: Protect the Discovery. Leave the discovery and the surrounding area untouched and create a clear, identifiable, and wide boundary (30 feet or larger) with temporary fencing, flagging, stakes, or other clear markings. Provide protection and ensure integrity of the discovery until cleared by the Department of Archaeological and Historical Preservation (DAHP) or a licensed, professional archaeologist. Do not permit vehicles, equipment, or unauthorized personnel to traverse the discovery site. Do not allow work to resume within the boundary until the requirements of this IDP are met. STEP C: Notify Project Archaeologist (if applicable). If the project has an archaeologist, notify that person. If there is a monitoring plan in place, the archaeologist will follow the outlined procedure. STEP D: Notify Project and Washington Department of Ecology (Ecology) contacts. Project Lead Contacts Primary Contact Alternate Contact Name: Name: Organization: Organization: Phone: Phone: Email: Email: Ecology Contacts (completed by Ecology Project Manager) Ecology Project Manager Alternate or Cultural Resource Contact Name: Name: Program: Program: Phone: Phone: Email: Email: ECY 070-560 (rev. 06/21) 2 IDP Form STEP E: Ecology will notify DAHP. Once notified, the Ecology Cultural Resource Contact or the Ecology Project Manager will contact DAHP to report and confirm the discovery. To avoid delay, the Project Lead/Organization will contact DAHP if they are not able to reach Ecology. DAHP will provide the steps to assist with identification. DAHP, Ecology, and Tribal representatives may coordinate a site visit following any necessary safety protocols. DAHP may also inform the Project Lead/Organization and Ecology of additional steps to further protect the site. Do not continue work until DAHP has issued an approval for work to proceed in the area of, or near, the discovery. DAHP Contacts: Name: Rob Whitlam, PhD Title: State Archaeologist Cell: 360-890-2615 Email: Rob.Whitlam@dahp.wa.gov Main Office: 360-586-3065 4. TRIBAL CONTACTS Human Remains/Bones: Name: Guy Tasa, PhD Title: State Anthropologist Cell: 360-790-1633 (24/7) Email: Guy.Tasa@dahp.wa.gov In the event cultural resources are discovered, the following tribes will be contacted. See Section 10 for Additional Resources. Tribe: Name: Title: Phone: Email: Tribe: Name: Title: Phone: E mEmai:ail:l Tribe: Name: Title: Phone: Email: Tribe: Name: Title: Phone: Email: Please provide contact information for additional tribes within your project area, if needed, in Section 11. 5. FURTHER CONTACTS (if applicable) If the discovery is confirmed by DAHP as a cultural or archaeological resource, or as human remains, and there is a partnering federal or state agency, Ecology or the Project Lead/Organization will ensure the partnering agency is immediately notified. ECY 070-560 (rev. 06/21) 3 IDP Form Federal Agency: State Agency: Agency: Agency: Name: Name: Title: Title: Phone: Phone: Email: Email: 6. SPECIAL PROCEDURES FOR THE DISCOVERY OF HUMAN SKELETAL MATERIAL Any human skeletal remains, regardless of antiquity or ethnic origin, will at all times be treated with dignity and respect. Follow the steps under Stop-Protect-Notify. For specific instructions on how to handle a human remains discovery, see: RCW 68.50.645: Skeletal human remains—Duty to notify—Ground disturbing activities—Coroner determination— Definitions. Suggestion: If you are unsure whether the discovery is human bone or not, contact Guy Tasa with DAHP, for identification and next steps. Do not pick up the discovery. Guy Tasa, PhD State Physical Anthropologist Guy.Tasa@dahp.wa.gov (360) 790-1633 (Cell/Office) For discoveries that are confirmed or suspected human remains, follow these steps: 1. Notify law enforcement and the Medical Examiner/Coroner using the contacts below. Do not call 911 unless it is the only number available to you. Enter contact information below (required): • Local Medical Examiner or Coroner name and phone: • Local Law Enforcement main name and phone: • Local Non-Emergency phone number (911 if without a non-emergency number): 2. The Medical Examiner/Coroner (with assistance of law enforcement personnel) will determine if the remains are human or if the discovery site constitutes a crime scene and will notify DAHP. 3. DO NOT speak with the media, allow photography or disturbance of the remains, or release any information about the discovery on social media. 4. If the remains are determined to be non-forensic, Cover the remains with a tarp or other materials (not soil or rocks) for temporary protection and to shield them from being photographed by others or disturbed. ECY 070-560 (rev. 06/21) 4 IDP Form ECY 070-560 (rev. 06/21) 5 IDP Form Further activities: •Per RCW 27.44.055, RCW 68.50, and RCW 68.60, DAHP will have jurisdiction over non-forensic human remains. Ecology staff will participate in consultation. Organizations may also participate in consultation. •Documentation of human skeletal remains and funerary objects will be agreed upon through the consultation process described in RCW 27.44.055, RCW 68.50, and RCW 68.60. •When consultation and documentation activities are complete, work in the discovery area may resume as described in Section 8. If the project occurs on federal lands (such as a national forest or park or a military reservation) the provisions of the Native American Graves Protection and Repatriation Act of 1990 (NAGPRA) apply and the responsible federal agency will follow its provisions. Note that state highways that cross federal lands are on an easement and are not owned by the state. If the project occurs on non-federal lands, the Project Lead/Organization will comply with applicable state and federal laws, and the above protocol. 7.DOCUMENTATION OF ARCHAEOLOGICAL MATERIALS Archaeological resources discovered during construction are protected by state law RCW 27.53 and assumed eligible for inclusion in the National Register of Historic Places under Criterion D until a formal Determination of Eligibility is made. The Project Lead/Organization must ensure that proper documentation and field assessment are made of all discovered cultural resources in cooperation with all parties: the federal agencies (if any), DAHP, Ecology, affected tribes, and the archaeologist. The archaeologist will record all prehistoric and historic cultural material discovered during project construction on a standard DAHP archaeological site or isolate inventory form. They will photograph site overviews, features, and artifacts and prepare stratigraphic profiles and soil/sediment descriptions for minimal subsurface exposures. They will document discovery locations on scaled site plans and site location maps. Cultural features, horizons, and artifacts detected in buried sediments may require the archaeologist to conduct further evaluation using hand-dug test units. They will excavate units in a controlled fashion to expose features, collect samples from undisturbed contexts, or to interpret complex stratigraphy. They may also use a test unit or trench excavation to determine if an intact occupation surface is present. They will only use test units when necessary to gather information on the nature, extent, and integrity of subsurface cultural deposits to evaluate the site’s significance. They will conduct excavations using standard archaeological techniques to precisely document the location of cultural deposits, artifacts, and features. The archaeologist will record spatial information, depth of excavation levels, natural and cultural stratigraphy, presence or absence of cultural material, and depth to sterile soil, regolith, or bedrock for each unit on a standard form. They will complete test excavation unit level forms, which will include plan maps for each excavation level and artifact counts and material types, number, and vertical provenience (depth below ECY 070-560 (rev. 06/21) 6 IDP Form surface and stratum association where applicable) for all recovered artifacts. They will draw a stratigraphic profile for at least one wall of each test excavation unit. The archaeologist will screen sediments excavated for purposes of cultural resources investigation through 1/8-inch mesh, unless soil conditions warrant 1/4-inch mesh. The archaeologist will analyze, catalogue, and temporarily curate all prehistoric and historic artifacts collected from the surface and from probes and excavation units. The ultimate disposition of cultural materials will be determined in consultation with the federal agencies (if any), DAHP, Ecology, and the affected tribe(s). Within 90 days of concluding fieldwork, the archaeologist will provide a technical report describing any and all monitoring and resultant archaeological excavations to the Project Lead/Organization, who will forward the report to Ecology, the federal agencies (if any), DAHP, and the affected tribe(s) for review and comment. If assessment activities expose human remains (burials, isolated teeth, or bones), the archaeologist and Project Lead/Organization will follow the process described in Section 6. 8.PROCEEDING WITH WORK The Project Lead/Organization shall work with the archaeologist, DAHP, and affected tribe(s) to determine the appropriate discovery boundary and where work can continue. Work may continue at the discovery location only after the process outlined in this plan is followed and the Project Lead/Organization, DAHP, any affected tribe(s), Ecology, and the federal agencies (if any) determine that compliance with state and federal laws is complete. 9.ORGANIZATION RESPONSIBILITY The Project Lead/Organization is responsible for ensuring: •This IDP has complete and accurate information. •This IDP is immediately available to all field staff at the sites and available by request to any party. •This IDP is implemented to address any discovery at the site. •That all field staff, contractors, and volunteers are instructed on how to implement this IDP. 10.ADDITIONAL RESOURCES Informative Video Ecology recommends that all project staff, contractors, and volunteers view this informative video explaining the value of IDP protocol and what to do in the event of a discovery. The target audience is anyone working on the project who could unexpectedly find cultural resources or human remains while excavating or digging. The video is also posted on DAHP’s inadvertent discovery language website. (https://www.youtube.com/watch?v=ioX-4cXfbDY)Ecology's IDP Video Informational Resources DAHP (https://dahp.wa.gov) Washington State Archeology (DAHP 2003) (https://dahp.wa.gov/sites/default/files/Field%20Guide%20to%20WA%20Arch_0.pdf) Association of Washington Archaeologists (https://www.archaeologyinwashington.com) Potentially Interested Tribes Interactive Map of Tribes by Area (https://dahp.wa.gov/archaeology/tribal-consultation-information) WSDOT Tribal Contact Website (https://wsdot.wa.gov/tribal/TribalContacts.htm) 11.ADDITIONAL INFORMATION Please add any additional contact information or other information needed within this IDP. ECY 070-560 (rev. 06/21) 7 IDP Form ECY 070-560 (rev. 06/21) 8 IDP Form Implement the IDP if you see… Chipped stone artifacts. Examples are: •Glass-like material. •Angular material. •“Unusual” material or shape for the area. •Regularity of flaking. •Variability of size.Stone artifacts from Oregon. Stone artifacts from Washington. Biface-knife, scraper, or pre-form found in NE Washington. Thought to be a well knapped object of great antiquity. Courtesy of Methow Salmon Rec. Foundation. ECY 070-560 (rev. 06/21) 9 IDP Form Implement the IDP if you see… Ground stone artifacts. Examples are: •Unusual or unnatural shapes or unusual stone. •Striations or scratching. •Etching, perforations, or pecking. •Regularity in modifications. •Variability of size, function, or complexity. Above: Fishing Weight - credit CRITFC Treaty Fishing Rights website. Artifacts from unknown locations (left and right images). ECY 070-560 (rev. 06/21) 10 IDP Form Implement the IDP if you see… Bone or shell artifacts, tools, or beads. Examples are: •Smooth or carved materials. •Unusual shape. •Pointed as if used as a tool. •Wedge shaped like a “shoehorn”. •Variability of size. •Beads from shell (dentalium) or tusk. Upper Left:Bone Awls from Oregon. Upper Center: Bone Wedge from California. Upper Right: Plateau dentalium choker and bracelet, from Nez Perce National Historical Park, 19th century, made using Antalis pretiosa shells Credit: Nez Perce - Nez Perce National Historical Park, NEPE 8762, Public Domain. Above: Tooth Pendants. Right: Bone Pendants. Both from Oregon and Washington. ECY 070-560 (rev. 06/21) 11 IDP Form Implement the IDP if you see… Culturally modified trees, fiber, or wood artifacts. Examples are: •Trees with bark stripped or peeled, carvings, axe cuts, de-limbing, wood removal, and other human modifications. •Fiber or wood artifacts in a wet environment. •Variability of size, function, and complexity. Left and Below: Culturally modified tree and an old carving on an aspen (Courtesy of DAHP). Right, Top to Bottom: Artifacts from Mud Bay, Olympia: Toy war club, two strand cedar rope, wet basketry. ECY 070-560 (rev. 06/21) 12 IDP Form Implement the IDP if you see… Strange, different, or interesting looking dirt, rocks, or shells. Human activities leave traces in the ground that may or may not have artifacts associated with them. Examples are: •“Unusual” accumulations of rock (especially fire-cracked rock). •“Unusual” shaped accumulations of rock (such as a shape similar to a fire ring). •Charcoal or charcoal-stained soils, burnt-looking soils, or soil that has a “layer cake” appearance. •Accumulations of shell, bones, or artifacts. Shells may be crushed. •Look for the “unusual” or out of place (for example, rock piles in areas with otherwise few rocks). Underground oven. Courtesy of DAHP. Shell Midden pocket in modern fill discovered in sewer trench. Hearth excavated near Hamilton, WA. Shell midden with fire cracked rock. ECY 070-560 (rev. 06/21) 13 IDP Form Implement the IDP if you see… Historic period artifacts (historic archaeology considered older than 50 years). Examples are: •Agricultural or logging equipment. May include equipment, fencing, canals, spillways, chutes, derelict sawmills, tools, etc. •Domestic items including square or wire nails, amethyst colored glass, or painted stoneware. Left: Top to Bottom: Willow pattern serving bowl and slip joint pocket knife discovered during Seattle Smith Cove shantytown (45- KI-1200) excavation. Right: Collections of historic artifacts discovered during excavations in eastern Washington cities. ECY 070-560 (rev. 06/21) 14 IDP Form Implement the IDP if you see… Historic period artifacts (historic archaeology considered older than 50 years). Examples are: •Railway tokens, coins, and buttons. •Spectacles, toys, clothing, and personal items. •Items helping to understand a culture or identity. •Food containers and dishware. Right, from Top to Bottom: Coins, token, spectacles and Montgomery Ward pitchfork toy discovered during Seattle Smith Cove shantytown (45-KI-1200) excavation. Main Image: Dishes, bottles, workboot found at the North Shore Japanese bath house (ofuro) site, Courtesy Bob Muckle, Archaeologist, Capilano University, B.C. This is an example of an above ground resource. ECY 070-560 (rev. 06/21) 15 IDP Form Implement the IDP if you see… •Old munition casings – if you see ammunition of any type – always assume they are live and never touch or move! •Tin cans or glass bottles with an older manufacturer's technique – maker’s mark, distinct colors such as turquoise, or an older method of opening the container. Far Left: .303 British cartridge found by a WCC planting crew on Skagit River. Don’t ever touch something like this! Left: Maker’s mark on bottom of old bottle. Right: Old beer can found in Oregon. ACME was owned by Olympia Brewery. Courtesy of Heather Simmons. Can opening dates, courtesy of W.M. Schroeder. Logo employed by Whithall Tatum & Co. between 1924 to 1938 (Lockhart et al. 2016). ECY 070-560 (rev. 06/21) 16 IDP Form Implement the IDP if you see… You see historic foundations or buried structures. Examples are: •Foundations. •Railroad and trolley tracks. •Remnants of structures. Counter Clockwise, Left to Right: Historic structure 45KI924, in WSDOT right of way for SR99 tunnel. Remnants of Smith Cove shantytown (45-KI-1200) discovered during Ecology CSO excavation, City of Spokane historic trolley tracks uncovered during stormwater project, intact foundation of historic home that survived the Great Ellensburg Fire of July 4, 1889, uncovered beneath parking lot in Ellensburg. ECY 070-560 (rev. 06/21) 17 IDP Form Implement the IDP if you see... Potential human remains. Examples are: •Grave headstones that appear to be older than 50 years. •Bones or bone tools--intact or in small pieces. It can be difficult to differentiate animal from human so they must be identified by an expert. •These are all examples of animal bones and are not human. Center: Bone wedge tool, courtesy of Smith Cove Shantytown excavation (45KI1200). Other images (Top Right, Bottom Left, and Bottom) Center: Courtesy of DAHP. Directly Above: This is a real discovery at an Ecology sewer project site. What would you do if you found these items at a site? Who would be the first person you would call? Hint: Read the plan! CITY OF RENTON SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT R ERSGEITE D CITY OF RENTON PUBLIC WORKS DEPARTMENT PROJECT LOCATION VICINITY MAP N.T.S LOCATION MAP N.T.S PROJECT LOCATION SHEET INDEX SHEET #DRAWING #SCHEDULE SHEET TITLE (FUNDED IN PART BY THE WASHINGTON STATE DEPARTMENT OF ECOLOGY) SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT COVER SHEET AND VICINITY MAP CITY OF RENTON PROJECT MANAGER Kevin Evans, P.E. (425) 430-7264 Public Works Department – Surface Water Utility 1055 South Grady Way, 5th Floor Renton, WA 98057 SOOS CREEK WATER & SEWER DISTRICT PROJECT MANAGER Paj Hwang, P.E. (253) 630-9900, EXT 105 14616 SE 192nd St Renton, WA 98058 2/27/2025 GENERAL NOTES: ·· ·· ·· TEMPORARY EROSION AND SEDIMENT CONTROL (TESC) STANDARD PLAN NOTES: SURVEY NOTES SEQUENCE OF CONSTRUCTION R ERSGEITE D CITY OF RENTON PUBLIC WORKS DEPARTMENT SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT NOTES 2/27/2025 PROJECT INFORMATION SIGN R ERSGEITE D CITY OF RENTON PUBLIC WORKS DEPARTMENT SE 172ND ST ALIGNMENT CONTROL 122ND AVE SE ALIGNMENT CONTROL 123RD AVE SE ALIGNMENT CONTROL 124TH AVE SE ALIGNMENT CONTROL 125TH AVE SE ALIGNMENT CONTROL TREE REMOVAL TABLE ABBREVIATIONSLEGEND TESC LEGEND SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT LEGEND AND ABBREVIATIONS 2/27/2025 12204 17046 17040 17034 17026 17053 17045 17039 17033 17025 12137 12145 12201 17026 17018 17012 17004 16864 16858 17017 17011 17003 16863 16855 KEY MAP N.T.S CITY OF RENTON PUBLIC WORKS DEPARTMENT GENERAL NOTES: SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT EXISTING CONDITIONS - 122ND AVE SE MA T C H L I N E S E E S H E E T 08 MA T C H L I N E S E E BE L O W MA T C H L I N E S E E AB O V E L A N DAL F A R ES OF G OSIN RE S T P OET T UREISTRSED O E Y V R O N G SAW H I NDOU A S A .H A R TM A N GL 12306 12210 17045 17039 17033 12215 12301 12307 17046 17040 17034 17025 17017 17011 17003 16863 16855 17026 17018 17012 17004 16864 16856 KEY MAP N.T.S CITY OF RENTON PUBLIC WORKS DEPARTMENT GENERAL NOTES: SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT EXISTING CONDITIONS - 123RD AVE SE MA T C H L I N E S E E S H E E T 08 MA T C H L I N E S E E BE L O W MA T C H L I N E S E E AB O V E L A N DAL F A R ES OF G OSIN RE S T P OET T UREISTRSED O E Y V R O N G SAW H I NDOU A S A .H A R TM A N GL 12314 17054 17046 17040 17034 12315 12323 12401 17045 17039 17033 17025 17026 17018 17012 17004 16864 16856 17025 17017 17011 17003 16863 18655 KEY MAP N.T.S CITY OF RENTON PUBLIC WORKS DEPARTMENT GENERAL NOTES: SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT EXISTING CONDITIONS - 124TH AVE SE MA T C H L I N E S E E S H E E T 08 MA T C H L I N E S E E BE L O W MA T C H L I N E S E E AB O V E L A N DAL F A R ES OF G OSIN RE S T P OET T UREISTRSED O E Y V R O N G SAW H I NDOU A S A .H A R TM A N GL 17121 17115 17109 17103 17120 17112 17104 12415 12505 17025 17017 17011 17003 16863 16855 16890 16882 16876 16868 16860 16854 KEY MAP N.T.S CITY OF RENTON PUBLIC WORKS DEPARTMENT GENERAL NOTES: SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT EXISTING CONDITIONS - 125TH AVE SE MA T C H L I N E S E E S H E E T 09 MA T C H L I N E S E E BE L O W MA T C H L I N E S E E AB O V E L A N DAL F A R ES OF G OSIN RE S T P OET T UREISTRSED O E Y V R O N G SAW H I NDOU A S A .H A R TM A N GL 12210 12137 12201 12207 12301 1220417053 12145 12215 1231412306 17054 12315 124011230712323 12407 KEY MAP N.T.S CITY OF RENTON PUBLIC WORKS DEPARTMENT GENERAL NOTES: SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT EXISTING CONDITIONS - SE 172ND ST - 1 MA T C H L I N E S E E BE L O W MA T C H L I N E S E E AB O V E MATCHLINE SEE SHEET 04 MATCHLINE SEE SHEET 05 MATCHLINE SEE SHEET 06 MA T C H L I N E S E E S H E E T 09 L A N DAL F A R ES OF G OSIN RE S T P OET T UREISTRSED O E Y V R O N G SAW H I NDOU A S A .H A R TM A N GL 17121 1251417120 12520 12415 12505 12513 12521 12527 12526 12541 12549 12555 17208 12713 12721 KEY MAP N.T.S CITY OF RENTON PUBLIC WORKS DEPARTMENT GENERAL NOTES: SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT EXISTING CONDITIONS - SE 172ND ST - 2 MA T C H L I N E S E E S H E E T 08 MATCHLINE SEE SHEET 07 MA T C H L I N E S E E BE L O W MA T C H L I N E S E E AB O V E L A N DAL F A R ES OF G OSIN RE S T P OET T UREISTRSED O E Y V R O N G SAW H I NDOU A S A .H A R TM A N GL 12204 17046 17040 17034 17053 17045 17039 17033 17026 17018 17012 17004 16864 16858 17017 17011 17003 16863 16855 17026 17025 GENERAL NOTES: SITE PREPARATION AND TESC NOTES: 12137 12145 12201 SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT TESC AND DEMOLITION PLAN - 122ND AVE SE MA T C H L I N E S E E S H E E T 14 MA T C H L I N E S E E B E L O W MA T C H L I N E S E E A B O V E R ERSGEITE D KEY MAP N.T.S CITY OF RENTON PUBLIC WORKS DEPARTMENT 2/27/2025 12306 12210 17045 17039 17033 17046 17040 17034 17025 17017 17011 17003 16863 16855 17026 17018 17012 17004 16864 16856 12215 12301 12307 GENERAL NOTES: SITE PREPARATION AND TESC NOTES: R ERSGEITE D KEY MAP N.T.S CITY OF RENTON PUBLIC WORKS DEPARTMENT SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT TESC AND DEMOLITION PLAN - 123RD AVE SE MA T C H L I N E S E E S H E E T 14 MA T C H L I N E S E E B E L O W MA T C H L I N E S E E A B O V E 2/27/2025 12314 17054 17046 17040 17034 17045 17039 17033 17026 17018 17012 17004 16864 16856 17025 17017 17011 17003 16863 18655 12323 12401 17025 GENERAL NOTES: SITE PREPARATION AND TESC NOTES: R ERSGEITE D KEY MAP N.T.S CITY OF RENTON PUBLIC WORKS DEPARTMENT SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT TESC AND DEMOLITION PLAN - 124TH AVE SE MA T C H L I N E S E E S H E E T 14 MA T C H L I N E S E E B E L O W MA T C H L I N E S E E A B O V E 2/27/2025 17121 17115 17109 17120 17112 17104 17025 17017 17011 17003 16863 16855 16890 16882 16876 16868 16860 16854 12415 12505 GENERAL NOTES: SITE PREPARATION AND TESC NOTES: R ERSGEITE D KEY MAP N.T.S CITY OF RENTON PUBLIC WORKS DEPARTMENT SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT TESC AND DEMOLITION PLAN - 125TH AVE SE MA T C H L I N E S E E S H E E T 15 MA T C H L I N E S E E B E L O W MA T C H L I N E S E E A B O V E 2/27/2025 12137 12201 12207 1230112145 12215 1231412306 17054 1 2 3 0 6 12415 GENERAL NOTES: SITE PREPARATION AND TESC NOTES: 1221012204 17053 12315 124011230712323 12407 R ERSGEITE D KEY MAP N.T.S CITY OF RENTON PUBLIC WORKS DEPARTMENT SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT TESC AND DEMOLITION PLAN - SE 172ND ST - 1 MA T C H L I N E S E E S H E E T 15 MA T C H L I N E S E E B E L O W MA T C H L I N E S E E A B O V E MATCHLINE SEE SHEET 10 MATCHLINE SEE SHEET 11 MATCHLINE SEE SHEET 12 2/27/2025 17121 1251417120 12520 12415 12505 12513 12521 12527 12526 12541 12549 12555 17208 12713 1271617130 1260412604 12721 GENERAL NOTES: SITE PREPARATION AND TESC NOTES: R ERSGEITE D KEY MAP N.T.S CITY OF RENTON PUBLIC WORKS DEPARTMENT SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT TESC AND DEMOLITION PLAN - SE 172ND ST - 2 MATCHLINE SEE SHEET 13 MA T C H L I N E S E E S H E E T 14 MA T C H L I N E S E E BE L O W MA T C H L I N E S E E AB O V E 2/27/2025 GENERAL NOTES: KEY NOTES:12204 17046 17040 17034 17053 17045 17039 17033 12137 12145 12201 1 29 1 29 R ERSGEITE D KEY MAP N.T.S CITY OF RENTON PUBLIC WORKS DEPARTMENT MA T C H L I N E ST A 1 + 2 2 - SE E S H E E T 24 PLAN - 122ND AVENUE SE - STA 1+00 TO STA 4+30 BIOPOD A-2 TO BIOPOD A-42 CB-60 TO CB-141 EX CB-130667 TO CB-143 SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT DRAINAGE PLAN AND PROFILE - 122ND AVE SE - 1 SCHEDULE A/D MA T C H L I N E ST A 4 + 3 0 - SE E S H E E T 17 2/27/2025 17026 17018 17012 17004 16864 16858 17025 17017 17011 17003 16863 16855 1 29 1 29 GENERAL NOTES: KEY NOTES: R ERSGEITE D KEY MAP N.T.S CITY OF RENTON PUBLIC WORKS DEPARTMENT CB-13 TO CB-111 PLAN -122ND AVENUE SE - STA 4+30 TO STA 7+50 CB-11 TO CB-103BIOPOD A-1 TO BIOPOD A-32 SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT DRAINAGE PLAN AND PROFILE - 122ND AVE SE - 2 SCHEDULE A/D MA T C H L I N E ST A 4 + 3 0 - S E E SH E E T 16 2/27/2025 12306 12210 17045 17039 1703312215 12301 17046 17040 17034 1 29 1 29 GENERAL NOTES: KEY NOTES: R ERSGEITE D KEY MAP N.T.S CITY OF RENTON PUBLIC WORKS DEPARTMENT CB-64 TO CB-241 PLAN -123RD AVENUE SE - STA 10+00 TO STA 13+32 BP B-2 TO BP B-42 SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT DRAINAGE PLAN AND PROFILE - 123RD AVE SE - 1 SCHEDULE A/D MA T C H L I N E ST A 1 0 + 2 2 - SE E S H E E T 24 MA T C H L I N E ST A 1 3 + 3 2 - SE E S H E E T 19 EX CB-138070 TO CB-243 2/27/2025 17025 17017 17011 17003 16863 16855 17026 17018 17012 17004 16864 16856 1 29 1 29 GENERAL NOTES: KEY NOTES: R ERSGEITE D KEY MAP N.T.S CITY OF RENTON PUBLIC WORKS DEPARTMENT CB-23 TO CB-211 CB-21 TO CB-203 PLAN -123RD AVENUE SE - STA 13+32 TO STA 16+30 BIOPOD B-1 TO BIOPOD B-32 SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT DRAINAGE PLAN AND PROFILE - 123RD AVE SE - 2 SCHEDULE A/D MA T C H L I N E ST A 1 3 + 3 2 - SE E S H E E T 18 2/27/2025 12314 17054 17046 17040 17034 12323 12401 17045 17039 17033 GENERAL NOTES: KEY NOTES: R ERSGEITE D KEY MAP N.T.S CITY OF RENTON PUBLIC WORKS DEPARTMENT PLAN -124TH AVENUE SE - STA 20+00 TO STA 23+32 CB-66 TO CB-341 EX CB-130664 TO CB-352 SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT DRAINAGE PLAN AND PROFILE - 124TH AVE SE - 1 SCHEDULE A/D MA T C H L I N E ST A 2 3 + 3 2 - SE E S H E E T 21 MA T C H L I N E ST A 2 0 + 2 2 - SE E S H E E T 25 2/27/2025 17026 17018 17012 17004 16864 16856 17025 17017 17011 17003 16863 18655 1 29 1 29 GENERAL NOTES: KEY NOTES: R ERSGEITE D KEY MAP N.T.S CITY OF RENTON PUBLIC WORKS DEPARTMENT PLAN -124TH AVENUE SE - STA 23+32 TO STA 26+20 CB-31 TO CB-303 CB-33 TO CB-311 BIOPOD C-1 TO BIOPOD C-22 SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT DRAINAGE PLAN AND PROFILE - 124TH AVE SE - 2 SCHEDULE A/D MA T C H L I N E ST A 2 3 + 3 2 - SE E S H E E T 20 2/27/2025 17121 17115 17109 17103 17120 17112 17104 12415 2 29 GENERAL NOTES: KEY NOTES: R ERSGEITE D KEY MAP N.T.S CITY OF RENTON PUBLIC WORKS DEPARTMENT PLAN -125TH AVENUE SE - STA 30+00 TO STA 33+32 CB-48 TO CB-492 CB-71 TO CB-451 CB-47 TO BIOPOD D-13 EX SD TO CB-464 CB-55 TO CB-545 SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT DRAINAGE PLAN AND PROFILE - 125TH AVE SE - 1 SCHEDULE A/D MA T C H L I N E ST A 3 0 + 2 2 - SE E S H E E T 26 MA T C H L I N E ST A 3 3 + 3 2 - SE E S H E E T 23 BIOPOD D-1 TO CB-546 2/27/2025 17025 17017 17011 17003 16863 16855 16890 16882 16876 16868 16860 16854 GENERAL NOTES: KEY NOTES: R ERSGEITE D KEY MAP N.T.S CITY OF RENTON PUBLIC WORKS DEPARTMENT PLAN -125TH AVENUE SE - STA 33+32 TO STA 36+20 CB-44 TO CB-411 CB-52 TO CB-502CB-53 TO CB-524 SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT DRAINAGE PLAN AND PROFILE - 125TH AVE SE - 2 SCHEDULE A/D MA T C H L I N E ST A 3 3 + 3 2 - SE E S H E E T 22 CB-44 TO CB-405 2/27/2025 GENERAL NOTES: KEY NOTES: 12210 12137 12201 12207 12301 12204 17053 12145 12215 R ERSGEITE D KEY MAP N.T.S CITY OF RENTON PUBLIC WORKS DEPARTMENT PLAN - SE 172ND STREET - STA 50+70 TO STA 54+20 CB-60 TO CB-641 CB-80 TO CB-814CB-61 TO CB-602 SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT DRAINAGE PLAN AND PROFILE - SE 172ND ST - 1 SCHEDULE A/D MATCHLINE STA 1+22 - SEE SHEET 16 MATCHLINE STA 10+22 - SEE SHEET 18 MA T C H L I N E ST A 5 4 + 2 0 - SE E S H E E T 25 CB-62 TO CB-633 2/27/2025 1231412306 17054 12315 124011230712323 12407 17121 2 29 GENERAL NOTES: KEY NOTES: R ERSGEITE D KEY MAP N.T.S CITY OF RENTON PUBLIC WORKS DEPARTMENT PLAN -SE 172ND STREET - STA 54+20 TO STA 58+10 CB-65 TO CB-661 CB-86 TO BIOPOD E-12 BIOPOD E-1 TO CB-653 SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT DRAINAGE PLAN AND PROFILE - SE 172ND ST - 2 SCHEDULE A/D MA T C H L I N E ST A 5 4 + 2 0 - SE E S H E E T 24 MA T C H L I N E ST A 5 8 + 1 0 - SE E S H E E T 26 MATCHLINE STA 20+22 - SEE SHEET 20 2/27/2025 1251417120 12520 12513 12521 12527 12526 1 29 1 29 KEY NOTES: GENERAL NOTES: R ERSGEITE D CITY OF RENTON PUBLIC WORKS DEPARTMENT PLAN - SE 172ND STREET - STA 58+10 TO STA 62+80 KEY MAP N.T.S CB-67 TO CB-751 BIOPOD E-2 TO BIOPOD E-34 CB-69 TO CB-703 CB-72 TO CB-732 SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT DRAINAGE PLAN AND PROFILE - SE 172ND ST - 3 SCHEDULE A/D MA T C H L I N E ST A 5 8 + 1 0 - SE E S H E E T 25 MATCHLINE STA 30+22 - SEE SHEET 22 MA T C H L I N E ST A 6 2 + 8 0 - SE E S H E E T 27 CB-77 TO CB-765 2/27/2025 12541 12549 12555 1271617130 1260412604 GENERAL NOTES: KEY NOTES: R ERSGEITE D KEY MAP N.T.S CITY OF RENTON PUBLIC WORKS DEPARTMENT MH-761 SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT DRAINAGE PLAN AND PROFILE - SE 172ND ST - 4 SCHEDULE A/D MA T C H L I N E ST A 6 2 + 8 0 - SE E S H E E T 26 2/27/2025 R ERSGEITE D CITY OF RENTON PUBLIC WORKS DEPARTMENT ROADWAY SECTION - SE 172ND AVE (STA 51+48 TO 58+42) ROADWAY SECTION - 125TH AVE SE ROADWAY SECTION - 124TH AVE SE ROADWAY SECTION - 123RD AVE SE ROADWAY SECTION - 122ND AVE SE GENERAL NOTES: SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT ROADWAY SECTIONS SCHEDULE A/D 2/27/2025 WQ DETAIL BIOPOD 6X4 UNIT1 6X4 BIOPOD NOTES: ELEVATION VIEW PLAN VIEW LEFT END VIEW CURB INLET DETAIL ™ ™ WQ DETAIL BIOPOD 12X4 UNIT2 12X4 BIOPOD UNIT LOCATIONS 6X4 BIOPOD UNIT LOCATIONS 12X4 BIOPOD NOTES: PLAN VIEW LEFT END VIEWELEVATION VIEW R ERSGEITE D CITY OF RENTON PUBLIC WORKS DEPARTMENT SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT DETAILS - 1 SCHEDULE A/D 2/27/2025 NOTES SPEED CUSHION GENERAL NOTES SPEED CUSHION PLAN SPEED CUSHION SECTION B-B SPEED CUSHION SECTION A-A R ERSGEITE D CITY OF RENTON PUBLIC WORKS DEPARTMENT PERVIOUS CONCRETE SIDEWALK DETAIL1 ASPHALT THICKENED EDGE2 SPEED CUSHION GRADING DETAIL3 SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT DETAILS - 2 SCHEDULE A/D SPEED CUSHION TYPICAL SPACING DETAIL CHEVRON DETAIL 2/27/2025 12204 17046 17040 17034 17026 17053 17045 17039 17033 17025 12137 12145 12201 17026 17018 17012 17004 16864 16858 17025 17017 17011 17003 16863 16855 LEGEND CONSTRUCTION NOTES: GENERAL NOTES: R ERSGEITE D KEY MAP N.T.S CITY OF RENTON PUBLIC WORKS DEPARTMENT SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT LANDSCAPE AND RESTORATION PLAN - 122ND AVE SE SCHEDULE A/D MA T C H L I N E S E E S H E E T 35 MA T C H L I N E S E E BE L O W MA T C H L I N E S E E AB O V E 2/27/2025 12306 12210 17045 17039 17033 12215 12301 12307 17046 17040 17034 17025 17017 17011 17003 16863 16855 17026 17018 17012 17004 16864 16856 LEGEND CONSTRUCTION NOTES: GENERAL NOTES: R ERSGEITE D KEY MAP N.T.S CITY OF RENTON PUBLIC WORKS DEPARTMENT SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT LANDSCAPE AND RESTORATION PLAN - 123RD AVE SE SCHEDULE A/D MA T C H L I N E S E E S H E E T 35 MA T C H L I N E S E E BE L O W MA T C H L I N E S E E AB O V E 2/27/2025 12314 17054 17046 17040 17034 12315 12323 12401 17045 17039 17033 17025 17026 17018 17012 17004 16864 16856 17025 17017 17011 17003 16863 18655 LEGEND CONSTRUCTION NOTES: GENERAL NOTES: R ERSGEITE D KEY MAP N.T.S CITY OF RENTON PUBLIC WORKS DEPARTMENT SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT LANDSCAPE AND RESTORATION PLAN - 124TH AVE SE SCHEDULE A/D MA T C H L I N E S E E S H E E T 35 MA T C H L I N E S E E BE L O W MA T C H L I N E S E E AB O V E 2/27/2025 17121 17115 17109 17103 17120 17112 17104 12415 12505 17025 17017 17011 17003 16863 16855 16890 16882 16876 16868 16860 16854 LEGEND CONSTRUCTION NOTES: GENERAL NOTES: R ERSGEITE D KEY MAP N.T.S CITY OF RENTON PUBLIC WORKS DEPARTMENT SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT LANDSCAPE AND RESTORATION PLAN - 125TH AVE SE SCHEDULE A/D MA T C H L I N E S E E S H E E T 36 MA T C H L I N E S E E BE L O W MA T C H L I N E S E E AB O V E 2/27/2025 12210 12137 12201 12207 12301 12204 17053 12145 12215 1231412306 17054 12315 124011230712323 12407 12415 LEGEND CONSTRUCTION NOTES: GENERAL NOTES: R ERSGEITE D KEY MAP N.T.S CITY OF RENTON PUBLIC WORKS DEPARTMENT SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT LANDSCAPE AND RESTORATION PLAN - SE 172ND ST - 1 SCHEDULE A/D MA T C H L I N E S E E S H E E T 36 MA T C H L I N E S E E BE L O W MA T C H L I N E S E E AB O V E MATCHLINE SEE SHEET 31 MATCHLINE SEE SHEET 32 MATCHLINE SEE SHEET 33 2/27/2025 17121 1251417120 12520 12415 12505 12513 12521 12527 12526 12541 12549 12555 17208 12713 LEGEND CONSTRUCTION NOTES: GENERAL NOTES: R ERSGEITE D KEY MAP N.T.S CITY OF RENTON PUBLIC WORKS DEPARTMENT SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT LANDSCAPE AND RESTORATION PLAN - SE 172ND ST - 2 SCHEDULE A/D MA T C H L I N E S E E S H E E T 35 MA T C H L I N E S E E BE L O W MA T C H L I N E S E E AB O V E MATCHLINE SEE SHEET 34 2/27/2025 12 2 N D A V E N U E S E CURB RETURN TABLE CURB RETURN TABLE CURB RETURN TABLE 12 3 N D A V E N U E S E SE 172ND STREET SE 172ND STREET R ERSGEITE D CITY OF RENTON PUBLIC WORKS DEPARTMENT SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT INTERSECTION PLAN - 1 INTERSECTION DETAIL - SE 172ND STREET AND 123RD AVENUE SE INTERSECTION DETAIL - SE 172ND STREET AND 122ND AVENUE SE SCHEDULE A/D 2/27/2025 12 4 T H A V E N U E S E CURB RETURN TABLE CURB RETURN TABLE CURB RETURN TABLE 12 5 T H A V E N U E S E SE 172ND STREET SE 172ND STREET R ERSGEITE D CITY OF RENTON PUBLIC WORKS DEPARTMENT SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT INTERSECTION PLAN - 2 INTERSECTION DETAIL - SE 172ND STREET AND 125TH AVENUE SE INTERSECTION DETAIL - SE 172ND STREET AND 124TH AVENUE SE SCHEDULE A/D 2/27/2025 DRIVEWAY TABLE NOTES: R ERSGEITE D CITY OF RENTON PUBLIC WORKS DEPARTMENT DRIVEWAY TABLE LEGEND SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT DRIVEWAY AND CURB RAMP DETAILS SCHEDULE A/D DRIVEWAY DETAIL1 SINGLE DIRECTION CURB RAMP DETAIL2 2/27/2025 WATER CONSTRUCTION NOTES:# GENERAL NOTES: “” ’ 17046 17040 17034 1702612204 170251703317039170451705312137 12145 12201 1 2 R ERSGEITE D KEY MAP N.T.S PLAN - 122ND AVENUE SE - STA 1+00 TO STA 4+07 MA T C H L I N E S E E S H E E T 45 PROP WATER1 PROP WATER2 MA T C H L I N E S E E S H E E T 41 SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT WATER PLAN AND PROFILE - 122ND AVE SE - 1 SCHEDULE B 2/27/2025 WATER CONSTRUCTION NOTES:# GENERAL NOTES: “” ’ 17034 17033 17025 17017 17011 17003 16863 1686417004170121701817026 3 1 2 4 R ERSGEITE D KEY MAP N.T.S PLAN -122ND AVENUE SE - STA 4+07 TO STA 7+50 MA T C H L I N E S E E S H E E T 40 PROP WATER1 PROP WATER2 PROP WATER3 SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT WATER PLAN AND PROFILE - 122ND AVE SE - 2 SCHEDULE B PROP WATER4 2/27/2025 WATER CONSTRUCTION NOTES:# GENERAL NOTES: “” ’ 12306 12210 17045 17039 17033 12215 12301 17046 17040 17034 1 R ERSGEITE D KEY MAP N.T.S PLAN -123RD AVENUE SE - STA 10+00 TO STA 13+10 MA T C H L I N E S E E S H E E T 45 MA T C H L I N E S E E S H E E T 43 PROP WATER1 SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT WATER PLAN AND PROFILE - 123RD AVE SE - 1 SCHEDULE B 2/27/2025 WATER CONSTRUCTION NOTES:# GENERAL NOTES: “” ’ 17025 17017 17011 17003 16863 1686417004170121701817026 1 2 3 R ERSGEITE D KEY MAP N.T.S PROP WATER1 PROP WATER2 PROP WATER3 MA T C H L I N E S E E S H E E T 42 PLAN -123RD AVENUE SE - STA 13+10 TO STA 16+30 SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT WATER PLAN AND PROFILE - 123RD AVE SE - 2 SCHEDULE B 2/27/2025 WATER CONSTRUCTION NOTES:# GENERAL NOTES: “” ’ 17026 17018 17012 17004 16864 16856 17025 17017 17011 17003 16863 18655 1 2 3 7 8 7 R ERSGEITE D KEY MAP N.T.S PROP WATER1 PROP WATER2 PLAN -124TH AVENUE SE - STA 23+32 TO STA 26+20 SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT WATER PLAN AND PROFILE - 124TH AVE SE - 2 SCHEDULE B 2/27/2025 1 3 17053 12204 12210 12306 123011221512207122011214512137 2 WATER CONSTRUCTION NOTES:# GENERAL NOTES: “” ’ R ERSGEITE D KEY MAP N.T.S PLAN - SE 172ND STREET - STA 50+00 TO STA 54+20 MA T C H L I N E S E E S H E E T 46 PROP WATER1 PROP WATER3 MATCHLINE SEE SHEET 40 MATCHLINE SEE SHEET 42 SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT WATER PLAN AND PROFILE - SE 172ND ST - 1 SCHEDULE B PROP WATER2 2/27/2025 2 1 17054 17121 1241512407 12401 12323 1231512307 12306 12314 WATER CONSTRUCTION NOTES:# GENERAL NOTES: “” ’ R ERSGEITE D KEY MAP N.T.S PLAN - SE 172ND STREET - STA 54+20 TO STA 58+10 MA T C H L I N E S E E S H E E T 45 MA T C H L I N E S E E S H E E T 47 PROP WATER1 PROP WATER2 SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT WATER PLAN AND PROFILE - SE 172ND ST - 2 SCHEDULE B 2/27/2025 1 17120 12514 12520 12526 125351252712521125131250512415 17121 WATER CONSTRUCTION NOTES:# GENERAL NOTES: “” ’ R ERSGEITE D KEY MAP N.T.S PLAN - SE 172ND STREET - STA 58+10 TO STA 63+36 MA T C H L I N E S E E S H E E T 46 PROP WATER SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT WATER PLAN AND PROFILE - SE 172ND ST - 3 SCHEDULE B 2/27/2025 17046 17040 17034 1702612204 170251703317039170451705312137 12145 12201 1 GENERAL NOTES: KEY NOTES: R ERSGEITE D KEY MAP N.T.S PLAN - 122ND AVENUE SE - STA 1+00 TO STA 4+30 MA T C H L I N E S E E S H E E T 49 SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT SANITARY SEWER PLAN AND PROFILE - 122ND AVE SE - 1 SCHEDULE C PROP SEWER1 2/27/2025 17025 17017 17011 17003 16863 16855 168581686417004170121701817026 2 1 GENERAL NOTES: KEY NOTES: R ERSGEITE D KEY MAP N.T.S PLAN -122ND AVENUE SE - STA 4+26 TO STA 7+50 MA T C H L I N E S E E S H E E T 48 SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT SANITARY SEWER PLAN AND PROFILE - 122ND AVE SE - 2 SCHEDULE C PROP SEWER1 PROP SEWER2 2/27/2025 17026 17018 17012 17004 16864 16856 17025 17017 17011 17003 16863 18655 1 2 GENERAL NOTES: KEY NOTES: R ERSGEITE D KEY MAP N.T.S PLAN -124TH AVENUE SE - STA 23+32 TO STA 26+20 SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT SANITARY SEWER PLAN AND PROFILE - 124TH AVE SE - 2 SCHEDULE C PROP SEWER1 PROP SEWER2 2/27/2025 17025 17017 17011 17003 16863 16855 16890 16882 16876 16868 16860 16854 1 2 GENERAL NOTES: KEY NOTES: R ERSGEITE D KEY MAP N.T.S PLAN -125TH AVENUE SE - STA 33+32 TO STA 36+20 SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT SANITARY SEWER PLAN AND PROFILE - 125TH AVE SE - 2 SCHEDULE C PROP SEWER PROP SEWER 2/27/2025 GENERAL NOTES: KEY NOTES: 1 17121 17115 17109 17103 17120 17112 17104 12415 12505 R ERSGEITE D KEY MAP N.T.S PLAN -125TH AVENUE SE - STA 30+00 TO STA 33+32 PROP SEWER1 SE 172ND STREET GREEN STORMWATER INFRASTRUCTURE (GSI) PROJECT SANITARY SEWER FM PLAN AND PROFILE - 125TH AVE SE - 1 SCHEDULE C 2/27/2025 1Y OA, 41 tiT a Public Works Department SE 172"d St Green Stormwater Infrastructure CAG-25-047 ADDENDUM No. 1 Date of Addendum Issue:March 10, 2025 Due Date for Bids:2:00 pm on March 25, 2025 To: ALL PLAN HOLDERS AND/OR PROSPECTIVE BIDDERS The following changes, additions, and/or deletions are hereby made a part of the project bid documents for the SE 172nd St Green Stormwater Infrastructure project and shall have the same effect as if set forth therein. Bidders shall acknowledge receipt and acceptance of this Addendum No. 1 by signing the addendum and submitting with the bid. Failure to acknowledge receipt of this addendum may result in your bid proposal being disqualified. 03—Scope of Work DELETE original Scope of Work (03 Scope of Work) and REPLACE with the updated attached document (03 Scope of Work_Add1). Revisions to the Scope of Work are indicated via track changes in the document and are included with this Addendum. Updates include the following: 1. The estimated project cost on the second page is revised as follows: The estimated project cost is$4,000,000 to$47400,000$4,500,000. 05—Instructions to Bidders DELETE original Instructions to Bidders (05 Instructions to Bidders) and REPLACE with the updated attached document (05 Instructions to Bidders _Add1). Revisions to the Instructions to Bidders are indicated via track changes in the document and are included with this Addendum. Updates include the following: 1. The first paragraph on the first page is revised as follows: ElectronicSealed bids for this proposal will be received by the City of Renton at cityclerLrnlrnntonwa i ov at the lobby of Renton City Hall, 1055 South Grady Way, Renton 98057, until the time and date specified in the Call for Bids. Addendum No.l'. Provided to Builders Exchange of WA, Inc. For usage Conditions Agreement see www.bxwa.com - Always Verify Scal Public Works Department 10—Schedule of Prices DELETE original schedule of prices (10 Schedule of Prices) and REPLACE with the updated attached document (10 Schedule of Prices_Add1). Updates include the following: 1. Bid item A23 on the second page is revised as follows: POLYETHYLENE POLYPROPYLENE STORM SEWER PIPE 12 IN. DIAM. 2. Bid item A24 on the second page is revised as follows: POLYETHYLENE POLYPROPYLENE STORM SEWER PIPE 18 IN. DIAM. 31— PSE Gas Relocation Plans DELETE original gas relocation plans (31 PSE Gas Relocation Plans) and REPLACE with the updated attached gas relocation plans (31 PSE Gas Relocation Plans_Add1). The plan revisions are indicated by clouding on the sheets included with this Addendum. Updates include the following: 1. On page 3 of 10 the proposed gas service relocation at 17012 122nd Ave SE is moved north to the opposite side of the existing has service. 2. On page 9 of 10 the proposed gas main relocation at 17025 125th Ave SE is moved west away from proposed storm system. 3. On page 9 of 10 the proposed gas main relocation at 17017 125th Ave SE is moved west away from proposed storm system. 4. On page 9 of 10 the proposed gas main relocation at 16863 125th Ave SE is moved west away from proposed storm system. Addendum No.l'•. Provided to Builders Exchange of WA, Inc. For usage Conditions Agreement see www.bxwa.com - Always Verify Scal z Public Works Department ALL OTHER REQUIREMENTS OF THE CONTRACT DOCUMENTS REMAIN IN EFFECT Sincerely, Kevin Evans, PE Civil Engineer III (Project Manager) City of Renton All Bidders must sign this Addendum No. 1 in the space provided below and attach the signed Addendum No. 1 to the Formal Bid Proposal Signature: itle:Vice President Company: OMA Construction, Inc. 0 MA Cute: 03/25/2025 dM UjO'-©N 7.*'Z (0,10 ON ,.•Jo 1 Addendum No.1\ Provided to Builders Exchange of WA, Inc. For usage Conditions Agreement see www.bxwa.com - Always Verify Scal L\Y Y O 0110, FMYo Public Works Department SE 172nd St Green Stormwater Infrastructure CAG-25-047 ADDENDUM No. 2 Date of Addendum Issue:March 17, 2025 Due Date for Bids:2:00 pm on March 25, 2025 To: ALL PLAN HOLDERS AND/OR PROSPECTIVE BIDDERS The following changes, additions, and/or deletions are hereby made a part of the project bid documents for the SE 172nd St Green Stormwater Infrastructure project and shall have the same effect as if set forth therein. Bidders shall acknowledge receipt and acceptance of this Addendum No. 2 by signing the addendum and submitting with the bid. Failure to acknowledge receipt of this addendum may result in your bid proposal being disqualified. 24—Special Provisions DELETE original Special Provisions (24 Special Provisions) and REPLACE with the updated attached document (24 Special Provisions_Add2). Revisions to the Special Provisions are indicated via track changes in the document and are included with this Addendum. Updates include the following: 1. A new sentence will be added to the second paragraph of Section 1-09.14(2)D3 as follows: Payment for "Contaminated Soil Excavation, Haul, and Disposal" shall be full compensation for all labor, materials, equipment, excavation, removal, stockpiling, hauling, and disposal of waste materials, etc., required to complete this item of Work in conformance with the Contract Documents. For the purpose of providing a common proposal for all bidders, it shall be assumed the contaminated material is RCRA Subtitle D (non-hazardous waste) petroleum- contaminated soil. 2. The last sentence of Section 2-05.2(4) will be replaced as follows: Testing will be per each paid under the "Soil Sampling and Testing" Bid item, per each. Testing, as requested by the Engineer, will be paid under the "Minor Changes" bid item. Addendum No.2 Provided to Builders Exchange of WA, Inc. For usage Conditions Agreement see www.bxwa.com - Always Verify Scal fit‘, 0041110* FHtO Public Works Department ALL OTHER REQUIREMENTS OF THE CONTRACT DOCUMENTS REMAIN IN EFFECT Sincerely, Kevin Evans, PE Civil Engineer Ill (Project Manager) City of Renton All Bidders must sign this Addendum No. 2 in the space provided below and attach the signed Addendum No. 2 to the Formal Bid Proposal Si atur Title:Vice President Company:OMA Construction, Inc. Date:03/25/2025 SdM :;.•c Z Fri. = A O:' _ Addendum No.2 Provided to Builders Exchange of WA, Inc. For usage Conditions Agreement see www.bxwa.com - Always Verify Scal L S Y O c 4F NT0r Public Works Department SE 172nd St Green Stormwater Infrastructure CAG-25-047 ADDENDUM No. 3 Date of Addendum Issue:March 20, 2025 Due Date for Bids:2:00 pm on March 25, 2025 To: ALL PLAN HOLDERS AND/OR PROSPECTIVE BIDDERS The following changes, additions, and/or deletions are hereby made a part of the project bid documents for the SE 172"d St Green Stormwater Infrastructure project and shall have the same effect as if set forth therein. Bidders shall acknowledge receipt and acceptance of this Addendum No. 3 by signing the addendum and submitting with the bid. Failure to acknowledge receipt of this addendum may result in your bid proposal being disqualified. 24—Special Provisions DELETE Addendum No. 2 Special Provisions (24 Special Provisions_Add2) and REPLACE with the updated attached document (24 Special Provisions_Add3). Revisions to the Special Provisions are indicated via track changes in the document and are included with this Addendum. Updates include the following: 1. The second paragraph of Section 1-09.14(2)A20 shall be revised as follows: The unit Contract price for "Pervious Cement Conc. Sidewalk" per square yard shall be full compensation for the costs of all labor, tools, equipment, and materials necessary or incidental to comply with the requirements of Sections 2-06.3(3)and 4-04.2,and construct the pervious concrete sidewalk as specified in Sections 5-07 and 8-14. Work elements include, but are not limited to, protecting the subgrade; furnishing and installing permeable ballast and geotextile under the sidewalk, performing mix designs; developing and implementing the Jointing Plan; saw cut joints, test plot; forming, including; testing; coordinating and scheduling with Engineer for infiltration testing of both subgrade and pervious concrete; and purchasing, procuring, placing, finishing pervious concrete adjustment of forms as required to meet ADA standards with maximum 2-percent cross- slope. Addendum No.3 Provided to Builders Exchange of WA, Inc. For usage Conditions Agreement see www.bxwa.com - Always Verify Scal j Y OA, t 9F NSOA Public Works Department 2. Sections 1-09.14(2)A21-A27, 1-09.14(2)A30, 1-09.14(2)A31-A33, 1-09.14(2)A34, 1- 09.14(2)A35-A36, 1-09.14(2)89 and 1-09.14(2)C8 shall be revised as follows: Furnishing and placing temporary hot mix asphalt patching. asphalt includes all hot mix asphalt and/or temporary asphalt that is not part of the 3. The second paragraph of Section 5-07.3(6)A shall be revised as follows: If the measured infiltration rate is less than 100 inches/hour at any test location, the Contractor may request in writing that the Engineer may perform additional infiltration tests for the purpose of assessing overall infiltration performance and/or determining a defective lot in accordance with Section 5-06.3(6).The determination of a defective lot, or lots, and the extent(s), will be determined by the Engineer. The cost of additional testing shall be the responsibility of the Contractor at a cost of ***$$1$$*** per test. Addendum No.S Provided to Builders Exchange of WA, Inc. For usage Conditions Agreement see www.bxwa.com - Always Verify Scal LDS Y Oa e 9fNTOt Public Works Department ALL OTHER REQUIREMENTS OF THE CONTRACT DOCUMENTS REMAIN IN EFFECT Sincerely, Kevin Evans, PE Civil Engineer Ill (Project Manager) City of Renton All Bidders must sign this Addendum No. 3 in the space provided below and attach the signed Addendum No. 3 to the Formal Bid Proposal Signati P Title:Vice President OMA Construction, Inc.nc. Date: 03/25/2025 oM,9 ,, co CO 0 0 Addendum No.3 Provided to Builders Exchange of WA, Inc. For usage Conditions Agreement see www.bxwa.com - Always Verify Scal