An image of the downstream face of Hoover Dam in Black Canyon, showing the power plant, outlet works and diversion tunnel portals in the foreground. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
An image showing an aerial view of Hoover Dam's reservoir, Lake Mead. Parts of the plane from which the image was taken are visible. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
An image of two men standing by a parked automobile and watching water discharging from the jet flow gates of Hoover (Boulder) Dam during construction. The name was officially changed to Hoover Dam in 1947.
Gantry Crane transporting 4 cubic yard Rex motor mixers in pouring tunnel lining during the construction of Boulder Dam, now called Hoover Dam. Site Name: Hoover Dam (dam)
Boulder Dam (now called Hoover Dam) construction. Trucks hauling 2-cubic-yard buckets, bringing concrete from the mixing plant for invert lining. Site Name: Hoover Dam (dam)
Black and white image of equipment being lowered into Hoover Dam. People are watching from the lookout point on the Nevada side of the dam. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
Captions: On the left, the gate structure to #4 diversion tunnel, 165 ft high. On the right side the upper portal to #3. Note: bulkhead in foreground, will be blown out after the completion of coffer dam, allowing water to pass thru; Coffer dam - Boulder Dam '32; Looking down a completed tunnel. Just before the water was diverted. Sunday Nov. 13, 1932, Hoover Dam.
Black and white aerial view of Black Canyon at Hoover Dam construction site. There are four visible bridges going over the Colorado River. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
Black and white aerial view of Black Canyon at Hoover Dam construction site. There are four visible bridges going over the Colorado River. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
Black and white image of Hoover Dam under construction in Black Canyon. Arizona and Nevada can be seen on either side of the dam in this picture. Note: Boulder Dam was officially renamed Hoover Dam in 1947.