An image showing a street view of the visitors' elevator tower and Hoover Dam's crest. Caption on right side of image reads: Visitors elevator tower and crest of Boulder Dam. Boulder Dam was officially re-named Hoover Dam in 1947.
An image of completed power generators at Hoover Dam. Caption on image reads: "Interior of powerhouse at Boulder Dam, with six 115,000-H.P generators installed. Service Bureau photo." Boulder Dam was officially renamed Hoover Dam in 1947.
Black and white image of Hoover Dam construction. A cat-walk is visible, spanning the canyon over the upstream cofferdam. The span is approximately between triangulation points C-7 and C-8. Elevation at the middle of the span is approximately 1,005 feet. Note: Boulder Dam was officially renamed Hoover Dam in 1947.