PRV Station 1 Rehabilitation Project, Renton, WA

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 drawings. - Replace PRV 1 with the proposed PRV, located outside the traveled roadway and shoulder. The new PRV will be located in the unimproved ROW, south of the existing PRV 1, at the west shoulder of Taylor Place SW adjacent to 564 Stevens Ave NW. - Connect the station inlet to the 12 DI on Taylor PL NW and the outlet to the 10 CI on Taylor PL NW. - Abandon the existing PRV and 10 Cl between the point of connection of the replacement PRV and connection to the 12 DI at S 124th St. - Install new PRV, piping, and appurtenances. - Install 3-inch pressure relief valve and piping, with an above ground discharge pipe that discharges water to the existing surface water ditch along the south side of Taylor Pl NW. o Installation of a concrete pad for energy dissipation from discharge pipe. o Extension and grading of the existing surface water ditch as indicated and/or directed. - Trench excavation, including removal of existing unsuitable material, removal and abandonment of existing utilities, disposal of excavated material, shoring, and dewatering. - Removal and replacement of asphalt concrete pavement, asphalt overlay, concrete curbs, gutters, sidewalks and driveways. - ROW Surface and other restoration. - Furnish and install approximately 80 LF ductile iron Class 52 8-inch diameter restrained joint water pipe and restrained joint fittings with polywrap. - Furnish and install approximately 110 LF ductile iron Class 52 10-inch diameter restrained joint water pipe and restrained joint fittings with polywrap. - Furnish and install a 12-inch x 10-inch tapping tee and valve assembly. - Installing and maintaining adequate TESC measures and restoring all disturbed areas. - Temporary traffic control measures following the contract documents and applicable City of Renton, King County, and MUTCD standards. - Testing and disinfecting of water mains. - Protecting existing utilities, utility potholing and resolution of utility conflicts.