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726 - 750 of 1090 Items << < 25 26 27 28 29 30 31 32 33 34 > >>
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View of construction of the foundations of the Arizona power house in the Colorado River bed in Black Canyon. Concrete pouring forms stand in the river bed and other construction equipment can be seen. Construction workers can be seen at the site...
1934-03-16
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View of construction on the Arizona intake towers, looking upstream on the Colorado River in Black Canyon. A derrick anchored in the intake tower base is seen above the canyon. A temporary bridge is also seen spanning the canyon.
1933-12-27
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Interior of diversion tunnel no. 2, illuminated by electric lights, showing construction workers with concrete pouring forms. The tunnel walls are partially finished.
1934-01-27
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Shows the Nevada spillway weir under construction. Scaffolding, temporary stairways, a construction shed, and other equipment can be seen.
1933-10-30
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A construction worker is operating a construction tractor with an attached trailer that is filled with boulders, rocks and dirt.
2024-05-05
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Looking into the interior of a partially constructed diversion tunnel. There appears to be some sort of scaffolding for construction workers to stand on and the tunnel is illuminated by electric lighting.
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Photo shows men working on the Nevada spillway weir. There are concrete forms, various buildings, construction equipment, and a truck in the scene.
1933-09-15
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View of construction of the Arizona Spillway in the Hoover Dam construction site. Concrete pouring forms and steel rods protruding from the unfinished spillway walls are seen around the partially finished concrete walls. Dirt roads and temporary...
1933-06-27
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Shows several buildings and structures on a rocky hillside on the bank of the Colorado River. They were involved in the construction of Hoover Dam.
2024-05-05
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Shows construction equipment and workers in the gorge of Black Canyon. Bucket skips are being loaded with muck to be transported out of the canyon. Also shows a power shovel and high scalers.
1933-06-05
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Construction workers are seen working with a drilling jumbo inside diverson tunnel no. 4.
1932-03-08
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View of the spillway on the Arizona side of Hoover Dam, showing steel gates in position. Towers to supply electric power higher up the hill.
1934-07-24
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View of the top of the dam wall with concrete pouring forms on top. Construction on two of the intake towers is seen behind the wall.
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View from on high of Hoover Dam construction, looking upstream. The Colorado River can be seen above the dam. Also shows concrete forms, a train winding along the side of the canyon, high scaling equipment, construction buildings, and a wire...
1933-08-31
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View of the Hoover Dam construction site from downstream on the Colorado River. Scaffolding and forms are seen on the dam and in the riverbed.
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View of construction workers buidling wooden forms for concrete pouring on Hoover Dam. The concrete dam wall is partially finished, and framework surrounds the beginning construction of the intake towers.
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View of the construction of the foundations of Hoover Dam on the floor of Black Canyon. Various pieces of machinery can be seen as well as a construction building. The view is taken from high above but several construction workers are also visible.
1933-06-21
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Looking upstream on the Colorado River flowing through Black Canyon at the Hoover Dam construction site. Bridges and catwalks are suspended over the river and the newly-dug mouths of the diversion tunnels are seen on both sides of the canyon....
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Viewpoint of dam construction from below the lower portals of the diversion tunnels. Muck disposal road shown on both sides of the river. Some trucks are visible in the foreground.
1932-01-19
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The main stem reservoirs on the Colorado River comprise one of the largest and most heavily used freshwater bodies in the nation. These reservoirs (Lake Powell, Lake Mead, Lake Mohave and Lake Havasu) can store up to 53,590,400 acre-feet of water...
1983-01-01
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Statement on U.S. House of Representative mills pertaining to the Bureau of Reclamation
1975-05-19
2007-01-02 2007-01-02 |
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The main stem reservoirs on the Colorado River comprise one of the largest and most heavily used freshwater bodies in the nation. These reservoirs (Lake Powell, Lake Mead, Lake Mohave and Lake Havasu) can store up to 53,590,400 acre-feet of water...
1983-01-01
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A booklet printed September, 1927 for distribution to the United States Senate and Congress and civic organization in the southwest. The booklet summarizes the federal government's plans for the control and use of the Colorado River flood waters.
1927-09-01
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A booklet printed June, 1927 for distribution to members of the United States Senate, Congress, federal officials, and civic and commercial organizations in Southern California, Nevada, Utah, Colorado, Wyoming, and New Mexico.
1927-06-01
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Speech about the potential for increasing hydroelectric power in the Colorado River Basin and throughout the U.S.
1976-12-13
2007-01-02 2007-01-02 |
