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Now viewing articles posted in 2025.

• American River Constructors (a CEC and Granite Joint Venture) recently completed a tremie pour for scour protection of a pier in the American River

  January 13th, 2025

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  Very early in the morning, American River Constructors (a CEC and Granite Joint Venture) recently completed a tremie pour for scour protection of a pier in the American River. This was the final underwater concrete pour of three piers. Placing the concrete, underwater, within the cofferdam, expands the pier foundations and protects them from high water flows during flooding on the American River. As the concrete is pumped in, an equal amount of water within the cofferdam is pumped out to be stored on-site and treated before being safely disposed of. Two large concrete pumps were used; one on land, feeding a second pumper truck on the barge, allowing the continuous flow of concrete from a series of trucks at the riverbank. CEC’s scheduling expertise and extensive marine equipment and experience ensured the smooth completion of this complex operation.