Color image of Hoover Dam looking upstream and showing the white water of the Colorado River below the spillway tunnel outlets. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
Construction site of the Boulder Dam, now known as Hoover Dam. Marion electric drag line with 5 cubic yard capacity bucket loading gravel. Site Name: Hoover Dam (dam)
Workmen at the construction of Boulder Dam, now called Hoover Dam. Trimming jumbo used in scaling walls of diversion tunnels and removing projecting rock. Site Name: Hoover Dam (dam)
An image of a row of power generators under construction at Hoover Dam. Several men are working on one of them. Boulder Dam was officially renamed Hoover Dam in 1947.
Black and white image showing Hoover Dam's downstream face during the concrete pouring process. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
A boat on the rising waters of Lake Mead near the intake towers of Hoover (Boulder) Dam shortly after the completion of construction. Boulder Dam was officially re-named Hoover Dam in 1947.
From the UNLV Libraries Single Item Accession Photograph Collection (PH-00171). Lowering loaded boxcar of power house machinery by 150 ton cableway at Hoover Dam during construction.
Plant where gravel was washed on Nevada side of Hoover Dam site while under construction. Note on back: ""Washed gravel and graded it with the longest conveyor belt in the world - W.A. Davis.""
Black and white image of the construction phase of Hoover Dam. The metal framework seen at the base of the dam will later become the dam's powerhouse. Note: Boulder Dam was officially renamed Hoover Dam in 1947.