Colma Creek Flood Control Channel Wall Repair

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.  PrōVen 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 of Spruce Avenue
South San Francisco, California
Start Date: June 2011
Completion Date: December 2011
Contract Value: $2,317,370
Owner: San Mateo County
Department of Public Works
Engineer: County of San Mateo
Department of Public Works

 

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