Pump Stations Improvements August 2022

Construction work progresses on the Belmont Gravity Pipeline (BGP) along Shoreway Road in Belmont and San Carlos. SVCW’s contractor partner, Shea Parsons Joint Venture (SPJV), and SPJV’s subcontractor Power Engineering Construction (PEC), are set to complete Phase 4 of the construction work this month. Vadnais Trenchless is currently performing microtunneling from Jacking Shaft 4 (JS-4) to Receiving Shaft 3 (RS-3), with microtunneling anticipated to be completed this month. Simultaneously, PEC has also begun Phase 5 of the construction, which involves restoration of the RS-4 shaft. Throughout all of the microtunneling operations, SPJV and PEC ensure consistent coordination with the SVCW public outreach team and neighboring businesses to limit impacts due to traffic modifications and construction noise.

At the Redwood City Pump Station (RCPS), SPJV continues with structural work at the pump station wet well and screening structure. With the construction of the second lift walls for the wet wells on the west side now complete, SPJV is setting rebar and closing concrete forms in preparation for pouring the second lift walls on the east side.

SPJV continues to proceed with structural and electrical work at the Menlo Park Pump Station (MPPS). Installation of suction and discharge piping for each pump has been completed at the B-side wet well and pump room, which will be followed by hydrotesting of all pumps and piping. The construction work at the B-side wet well is coming to a close, after installing the VFDs, pumps and motors, SPJV will be making preparations to perform functional testing after which a 30-day acceptance test of the installed equipment will follow. PEC has also completed installation of new air relief valves (ARVs) and vacuum relief valves (VRVs) at the existing Segment 1 Force Main between the MPPS and the RCPS.

JS-4 to RS-3 microtunneling operations
Rebar installation for second lift walls at RCPS
MPPS pipe sections
Drone image of RCPS
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