• Grand Coulee Dam - Grand Coulee WA
    The idea for the dam was originally proposed by William M. Clapp in 1917. Feasibility studies were performed in the 1920s, and a final report in favor of the dam was presented to Congress in 1931, but work on the dam did not begin until President Franklin D. Roosevelt promised federal support in 1933. The Public Works Administration began work on the dam in 1934. "Grand Coulee Dam is a gravity dam on the Columbia River in the U.S. state of Washington built to produce hydroelectric power and provide irrigation. It was constructed between 1933 and 1942, originally with two power...