Black and white image of a barge used to transfer trucks and heavy materials across the Colorado River during the construction phase of the Boulder Canyon Project, better known as Hoover Dam. This specific barge is equipped with a double drum hoist. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
Black and white image of boats used to transport men, powder, and supplies up and down the Colorado River in Black Canyon during the construction phase of the Boulder Canyon Project, better known as Hoover Dam. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
Black and white image of the construction phase of the Boulder Dam Project, also known as Hoover Dam. This image features Six Companies, Inc. employees aligning and oiling six miles of road down toward the upper portals on Hemenway Wash.
Black and white image of the construction phase of the Boulder Canyon Project, also known as Hoover Dam. Excavation for the Hoover Dam construction substation by the Nevada-California Power Company is visible. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
Black and white image of the Hoover Dam construction site at Black Canyon showing an upstream view during construction. This picture is one of several that cover the entire construction phase of the Hoover Dam from beginning on October 12, 1931, to completion on September 11, 1936. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
Black and white image of a celebration at the Hoover Dam powerhouse. The Young Presidents' Organization arranged a party for nearly 1,000 people that was held on the roof of the powerhouse. The visitors, the first to use this setting, would all be wearing hard hats. Tables, chairs, barbeque pits, a bandstand, and dance floor are visible.
Black and white image of a celebration at the Hoover Dam powerhouse. The Young Presidents' Organization arranged a party for nearly 1,000 people that was held on the roof of the powerhouse. The visitors, the first to use this setting, would all be wearing hard hats. Tables, chairs, barbeque pits, a bandstand, and dance floor are visible.
Black and white image of a celebration at the Hoover Dam powerhouse. The Young Presidents' Organization arranged a party for nearly 1,000 people that was held on the roof of the powerhouse. The visitors, the first to use this setting, would all be wearing hard hats. Tables, chairs, barbeque pits, a bandstand, and dance floor are visible.
Black and white image of a celebration at the Hoover Dam powerhouse. The Young Presidents' Organization arranged a party for nearly 1,000 people that was held on the roof of the powerhouse. The visitors, the first to use this setting, would all be wearing hard hats. Tables, chairs, barbeque pits, a bandstand, and dance floor are visible.
Black and white image of a celebration with fireworks at the Hoover Dam powerhouse. The Young Presidents' Organization arranged a party for nearly 1,000 people that was held on the powerhouse roof. The visitors, all wearing hard hats, were the first to use this setting. Tables and chairs are also visible.