BDPL5 Cordilleras Micro-Tunnel


San Mateo County, California


San Francisco Public Utilities Commission

Project Dates

2012 - 2013

Services Provided

Construction management services


The project scope includes constructing a new micro-tunnel under Cordilleras Creek in San Mateo County, as the final portion of the new 60" diameter Bay Division Pipeline No.5. The work is to be performed in San Mateo County, CA. The installation of 60” welded steel pipe; 465 LF by tunneling and 920 LF by the open-cut method. The project also included the installation of special fittings, corrosion protection, air vacuum assemblies, roadway restoration of Bennett Road in Redwood City, CA, and landscape restoration along the alignment. The additional project scope includes dewatering monitoring frequency, dewater permit, 1-29; USACE 404 Permit.