USA
Colorado
Exxon Company
ASI's first RCC dam
Oil shale (Marlstone) aggregate
As ASI's first RCC dam, and the second in the United States, the project involved constructing a new RCC dam on a previously excavated earthfill dam foundation. Other features of the project included constructing a temporary 50 foot high (15.24 m) sheet pile wall staging platform; foundation preparation; construction of a multilevel intake tower and associated outlet works; and placement of the RCC dam. ASI designed, proposed, and built a stepped downstream face, which has since been frequently used in many RCC dam designs.
Type of Dam: RCC, gravity
Height: 124 feet; 40 m
Crest Length: 500 feet; 150 m
RCC Volume: 50,000 cy; 38,000 m3
Conventional Concrete: 7,600 cy; 5,800 m3