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Colma Creek Flood Control Channel Wall Repair Project

 

This project included the repair and upgrade of a section of the Colma Creek at Spruce Avenue Bridge.  The existing concrete wall was removed and replaced with a concrete "U" channel, which created a concrete floor where the existing earthen bottom was.  ProVen also replaced the failing walls with new ones.  The U-shaped wall construction required temporary support and dewatering.  Temporary support was provided by steel sheet piles driven to adequate depths below the excavation.  Horizontal bracing for the sheet piles on the channel side was needed due to retained heights of the land side. 

Location: Upstream Spruce Avenue
South San Francisco, CA
Start Date: June 2011
Completion Date: September 2011, 75 working days
Original Contract: $2,155,280
Final Amount: Currently under construction
Owner: San Mateo County
Department of Public Works
400 County Center
Redwood City, CA 94063
Mark Chow, Project Manager  
650-363-4100
mchow@co.sanmateo.ca.us
Engineer: County of San Mateo
Department of Public Works
 

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