Crystal Springs Bypass Tunnel

Client: San Francisco Public Utilities Commission
Location: San Mateo County, CA
Start Date: January 2009
End Date: October 2011
Contract Amount: $55.6 million

Work began in 2009 on the $55.6 million New Crystal Springs Bypass Tunnel, a joint venture between Balfour Beatty Infrastructure, Inc. and M.L. Shank Co. for the San Francisco Public Utilities Commission.

The project called for the drilling of a 4,200-foot tunnel that is 11 feet in diameter. The tunnel, which has a welded steel liner, is designed to accommodate a pipeline that carries drinking water to residents of San Francisco and the Bay Area's Peninsula region.

   

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