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BDPL Reliability Upgrade - Pipeline (Peninsula) (WSIP)

Project Update

Construction of Bay Division Pipeline No. 5 – Peninsula (BDPL5 – Peninsula) continues in Redwood City, North Fair Oaks, San Mateo County, and Menlo Park.

The project has less than 6,000ft remaining of the 46,350ft of total pipe of the BDPL5 – Peninsula project. Each segment of pipe is approximately 40-feet long, and weighs about 20,000 pounds. The remaining pipe is being installed in Menlo Park along Bay Road and under Highway 101, and in San Mateo County along Edgewood Road. Work also continues at valve houses in East Palo Alto and Redwood City to connect and integrate the new pipeline into the existing Bay Division System.

Excavators digging the trench along Edgewood Road in San Mateo County.   Precisely maneuvering pipe into position on Bay Road in Menlo Park.

Restoration is underway along the pipe alignment through North Fair Oaks, Menlo Park, Redwood City, and San Mateo County. Pipe installation and restoration is complete in East Palo Alto.

Overall the project is nearly 79% complete. When it’s completed, the 9-mile long pipe will span between the San Francisco Bay in East Palo Alto, and the Pulgas Ridge Open Space Area near Crystal Springs Reservoir. For weekly construction updates visit our project blog.

Pipe installation coming down the slope to cross Crestview Drive in San Mateo County.   Preparing for pipe installation in Redwood City.


Project Description

Mountain Cascade, Inc., of Livermore was awarded a $52.1 million contract to build the Peninsula segment of the new Bay Division drinking water pipeline. The 60” diameter Peninsula segment (BDPL5 Peninsula) is a part of the Bay Division Pipeline Reliability Upgrade Project, which also includes a 7-mile pipeline in the East Bay, and the 5-mile Bay Tunnel linking the two pipelines (the first ever tunnel dug underneath the San Francisco Bay).

This new drinking water pipeline will be constructed alongside the existing Bay Division Pipelines Nos. 1 and 2 which were built in the 1920's and 30's.

BDPL5 Peninsula is an essential component in maintaining the SFPUC’s Hetch Hetchy Regional Water System, which provides high quality drinking water to over 2.5 million Bay Area customers.

Check out this video to learn more about the project.


Project Information

    March 2010
    March 2013
  • COST
    $222 Million - East Bay & Peninsula

Additional information

The information shown reflects the current forecast information published in the latest WSIP Quarterly Report.



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