Pump Stations Improvements March 2022

Construction work advances as scheduled on the Belmont Gravity Pipeline (BGP) along Shoreway Road in Belmont and San Carlos. SVCW’s contractor partner, Shea Parsons Joint Venture (SPJV) subcontractor Power Engineering Construction (PEC), has completed restoration of Jacking Shaft 1 (JS1), Receiving Shaft 1 (RS1) and Jacking Shaft 2 (JS2). With the cleanup and demobilization of these shafts, PEC has begun Phase 3 of the construction work along Shoreway Road, where the crew is now set up to construct the RS3 shaft. Current work includes preparation for sheet pile installation, which will be followed by shaft excavation. PEC will be cutting the sheet piles into shorter lengths to accommodate the overhead power lines in the vicinity of the shaft. The project team has also coordinated with relevant external agencies to relocate a portion of a water line that runs through the shaft footprint. These activities are being conducted while ensuring consistent coordination efforts with the SVCW public outreach team and neighboring businesses to limit traffic impacts.

Sewer manhole grouting

At the Redwood City Pump Station (RCPS), SPJV continues structural work at the pump station wet well and screening building. The contractor has completed pouring the first lift walls of the screening building on the north and south sides, and is now curing and stripping forms for the first lift walls. Miscellaneous work continues at the electrical building, which includes interior painting on the CMU walls, and installation of the rollup access door and HVAC.

RCPS screening building panel forms
RCPS drone image

Structural and electrical improvements are progressing at the Menlo Park Pump Station (MPPS). In the electrical room, SPJV is installing electrical conduits and variable frequency drives (VFDs) to control pump operations, as well as additional waterproofing and painting in the electrical room. SPJV has also begun preparing for the shutdown and rehabilitation of the existing B-side wet well (the MPPS has two wet wells that supply the MPPS pumps: A-side and B-side). Current work involves drawing down the water level in the B-side wet well, and removal of all existing equipment, including pumps, motors, and valves. The shutdown procedure will be followed by removal of the concrete coating in the existing wet well and channel, before installation of the new equipment gets underway. The shutdown and installation activities are being conducted with a high level of coordination between the contractor and SVCW’s Operations and Maintenance team.


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