2025 Water Main and PRV Improvements

The project consists of five different project sites in unincorporated Snohomish County, designated as Schedules A-E. The work for all five sites is to be done as part of the project and they are to be bid together as one project. Schedule A includes the installation of approximately 635 lineal feet of 4-inch diameter ductile iron (DI) water main in 78th Street SE from 79th Ave SE to the east, new water services, one blowoff assembly, one air-vac assembly, and one connection to the existing system. Schedule B includes the installation of approximately 325 lineal feet of 4-inch diameter DI water main in 79th Ave SE from 74th St SE to the dead end to the north, new water service lines, air-vac and blowoff assemblies, as well as one connection to the existing system. Schedule C includes the installation of approximately 430 lineal feet of 4-inch diameter ductile iron (DI) water main in a private drive to the south of 212th Street SE around the 9300 block, new water service lines, a blowoff assembly, and one connection to the existing system. Work covered by Schedules A C also includes pavement sawcutting, trench patching, grind & overlay and gravel road and shoulder restoration. Schedule D includes the upgrade of an existing pressure-reducing valve (PRV) station and its associated appurtenances at the intersection of 88th Ave SE and 192nd Street SE and involves replacement of vault top section and installation of a sump ejector assembly along with other improvements. Schedule E includes the replacement of an existing PRV vault, roughly 60 lineal feet of new 8- inch diameter ductile iron water main, along with 12 spool, associated water appurtenances, (4) new water main connections, along with cutting in (2) new in-line valves, along with site improvements that include, but are not limited to a new block wall and storm drain catch basins and pipes, and grading and paving on Elliot Road near 102nd Ave SE.