Black and white image showing a river-level view of canyon blasting in Black Canyon at the site of Hoover Dam construction. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
Black and white image of Hoover Dam's crest and a sailboat on Lake Mead, as seen from the Nevada upstream side of the dam. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
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.
Pg.34 #2713 Boulder Dam, looking upstream from the Nevada side. May 31st, 1934. Pg.34 #2698 Looking upstream toward the upper plug and raise, in Diversion Tunnel No. 3. May 25th, 1934.
Black and white image of Hoover Dam with the following description (provided by Special Collections): "View of bank 287.5 KVV transformers along the ramp of the Arizona powerhouse. April 1941." Note: Boulder Dam was officially renamed Hoover Dam in 1947.