Black and white image of Hoover Dam under construction. This view is looking down into the upper cofferdam area from the rim of the Arizona side of Black Canyon. Also visible are a temporary earth diversion dam and steel sheet piling extending out from the Nevada abutment and marking the upstream toe of the cofferdam. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
Black and white image of the spillway on the Nevada side of Hoover Dam. This view shows the spillway running at peak capacity of 13, 944 cubic feet per second and 4.5 feet above spillways gates.
Black and white image of Hoover Dam. A rare view of Hoover Dam against a cloud pattern in a desert sky that is usually clear. The world-famous dam, completed by the Bureau of Reclamation, conquered the Colorado River for the first time in history. The dam, spanning the river between Nevada and Arizona, provides all of Reclamation's multipurpose benefits: flood protection, river control, water storage and conservation for irrigation; municipal and industrial uses; generation of low-cost hydroelectric energy; enhancement of navigation; recreation; and fish and wildlife protection.
Black and white aerial view looking upstream at Hoover Dam and Lake Mead and showing the white water of the Colorado River gushing out of the spillway tunnel outlets.
Black and white image of Hoover Dam at night. Seventy-eight floodlights on top of the central section of the power plant project 93,500 watts on the face of the dam.