Listed below are projects that are currently in progress. View recently completed projects.
Date Started: April 2021
Contract Amount: $7.3M
Contractor: Contractor Mountain Cascade Inc.
Description: Sonoma Water owns, operates, and maintains a 48-inch diameter steel water supply pipeline (referred to as the Russian River-Cotati Intertie) that crosses the southern and eastern aqueduct transmission lines and crosses the Russian River in Sonoma County. The pipeline is buried at a relatively shallow depth (approximately 7 feet below ground surface) across the Russian River channel and stream banks, and crosses seismically unstable terrain. The proposed project is needed to address seismic concerns related to reliable delivery of water to Sonoma Water’s service area and prevent the loss of an essential water service due to a moderate or severe earthquake along the Rodger's Creek/Hayward Fault.
Date Started: August, 2019
Contract Amount: TBD (Engineer's Estimate $1,300,000)
Description: The Work consists of removal and replacement of protective coatings on two above-grade welded steel potable water storage tanks located in an unincorporated area of Forestville, California. The Work includes the removal of internal epoxy coating, removal of loose exterior paint, recoating of the interior and exterior of the tanks, removal of existing cathodic protection system, installation of a new cathodic protection system, replacement of air vents, drain pipe replacement, overflow pipe modifications, cabinet removal, roof penetration repair, and the addition of an occupancy sensor
Date Started: July, 2019
Contract Amount: $5,795,922
Contractor: Mountain Cascade, Inc. Livermore, CA
Description: The Work consists of construction of Owner’s sewer trunk main replacement phase 4A, 6th Street West to Ramon Street, within the city of Sonoma, and sewer trunk main replacement phase 4B.1, located in Maxwell Farms Regional Park near the ballfield. The Work includes replacement of approximately 4,300 feet of 27 inch diameter trunk sewer, associated manholes, and re-attachment of existing connecting sewer line.
Date Started: June, 2019
Contract Amount: $3,198,386
Contractor: TerraCon Constructors, Healdsburg, CA
Description: : The Work consists of the construction of Owner’s equalization basins 1, 2, 3, and 4 geomembrane relining located at the Sonoma Valley County Sanitation District’s wastewater treatment plant. The Work includes the relining of each basin with an impermeable layer of geomembrane liner, which anchors in a trench along the top of each basin; the installation of approximately 250 feet of 24-inch diameter pipe between basin 3 and basin 4; the installation of incidental piping, washdown monitors, and electrical conduit and appurtenances; and construction of a concrete drainage trench in equalization basin 1.
Montgomery Drive Storage Building at Sonoma Booster Station
Date Started: March, 2019
Contract Amount: $517,650
Contractor: R&C Construction, Middletown, CA
Description: The Work consists of construction of Owner’s Montgomery Drive Storage Building located at 5200 Montgomery Drive, Santa Rosa, California. The Work includes construction of a pre-engineered metal storage building, related site work and foundation and new PG&E connection.
Date Started: September, 2018
Contract Amount: $1,344,125
Contractor: Argonaut Constructors, Inc., Santa Rosa, CA
Description: The Work consists of construction of approximately 2,450 feet of 8-inch diameter sanitary sewer main located in East Robles Avenue, Brooks Avenue and Delores Lane outside the limits of the City of Santa Rosa, California. The Work includes excavation, backfilling, surface restoration for the construction of sanitary sewer main, including manholes, laterals, modifications of existing manhole and bore-and-jack under a box culvert. Work also includes removal or abandonment of existing sewer mains, manholes and appurtenances.
Date Started: August, 2018
Contract Amount: $3,584,620
Contractor: McCullough Construction, Inc., Arcata, CA
Description: The Dry Creek Enhancement Project will construct low velocity habitat areas for juvenile Coho and Steelhead. This portion of the project consists of work in Reach 14. The work includes construction of side channels, riffles, backwaters and alcoves which will slow the speed of the water and create refuge for young fish. The improvements are constructed in the floodplain areas of Dry Creek and include installation of habitat and stabilization structures are composed of logs and boulders, driving logs into the ground anchor structures, bank stabilization measures, planting of riparian vegetation and trees, removal of nuisance non-native riparian vegetation and construction of in-channel features such as boulder fields and riffles, dewatering during construction, and isolation of Work areas from the creek.