A $114.4 million contract to upgrade the Folsom Dam and elevate its main structure has been awarded to a joint venture of Shimmick Construction and California Engineering Contractors.
The U.S. Army Corps of Engineers, Sacramento District. has charged the team with raising the 340-foot main dam by 3.5 ft. The contract also includes elevating the structure’s left and right wing dams and modifying its eight spillway gates by adding top seals, strengthening the gates and raising the gate piers.