The Coolidge Dam

The Coolidge Dam was built by the United States of America Department of Interior Bureau of Indian Affairs Irrigation Service under President Calvin Coolidge, with Roy O. West and Hubert Work serving as Secretary of the Interior, Charles H. Burke as Commissioner of Indian Affairs, and Edgar B. Merritt as assistant commissioner, alongside irrigation, engineering, architectural, consulting, and contractor personnel responsible for its design and construction. Work commenced in January 1927, the first concrete was placed on November 24, 1927, and construction was completed on October 25, 1928. The dam had a base elevation of 2286 and a roadway elevation of 2536, stood 250 feet above bedrock, and created a reservoir with a capacity of 1,200,000 acre feet. Its construction involved 317,000 cubic yards of foundation rock and spillway excavation, 204,000 cubic yards of concrete, and 3,500 tons of reinforcing steel. The central buttress at the base measured 270 feet, the maximum span of the domes was 180 feet, and the total overall length of the structure including spillways was 920 feet. Calvin Coolidge dedicated it on March 4, 1930.

Arizona · United States