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526 - 550 of 1090 Items << < 17 18 19 20 21 22 23 24 25 26 > >>
526 - 550 of 1090 Items << < 17 18 19 20 21 22 23 24 25 26 > >>
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Shows the interior of a power house pump gallery being constructed at Hoover Dam. Shows wiring and electric lights.
1935-04-10
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View of two intake towers under construction. Left tower is further along than right. To far left can see temporary stairway going up the side of the canyon. In left foreground can see pouring forms for the dam itself. Himix and Lomix trestles...
1934-04-28
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Shows construction on the spillway on the Nevada side. Shows derrick cranes, cables overhead, part of the dam, and the intake towers under construction.
1934-10-25
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Shows construction workers deep inside a tunnel at the Hoover Dam site. The scene is lit with electric lights and a railroad track is visible.
1935-03-04
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View of Hoover Dam, looking downstream from the Arizona side. Several buildings and structures are visible as well as an observation point at the left. Shows the intake towers and also Lake Mead (Hoover Dam reservoir). The road leading to the...
1935-05-27
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View taken from the Arizona side showing the intake towers and upstream face of the dam during construction. Various buildings are visible as well as hoisting machinery and a railroad snaking along the upper canyon. Cables span the canyon to...
1935-03-26
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View of Hoover Dam construction from the top of the dam looking toward the Arizona side. A spillway and intake towers are visible in the background. Concrete pouring forms are shown with construction people at work. Hoisting machinery is also...
1934-10-17
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Night view of the Hoover Dam construction site viewed from the lower cofferdam. Electric lights illuminate the dam face, the canyon walls and construction on the Nevada and Arizona power houses below. Temporary buildings are seen in the foreground...
1934-06-19
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Aerial view of the Hoover Dam construction site in Black Canyon showing the upstream dam face, which has concrete pouring forms on the top of it, the Arizona and Nevada spillways, and the unfinished Arizona intake towers. The Colorado Rivers flows...
1934-08-17
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View of construction on the Arizona spillway in Black Canyon. An electric dragline can be seen at the top left of the dirt road above the spillway. Construction on one of the penstock tunnels can be seen inside the spillway.
1934-09-27
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View of construction on and around the partially-completed Nevada spillway. Construction workers can be seen working on the cylinder gates in the middle of the spillway. An electric dragline is seen on a trestle near the bottom of the spillway.
1934-07-20
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Aerial view of the Hoover Dam construction site, looking downstream on the Colorado River in Black Canyon. Construction on the intake towers on both sides of the dam face is shown. The top of the dam face is covered with concrete pouring forms....
1934-07-24
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Shows partially completed power house at the Hoover Dam site. A construction worker, ladders, cables and building materials such as lumber are visible.
1934-05-29
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Shows Hoover DAm and the Nevada intake towers during construction. Temporary stairways, train trestle, concrete forms, hoisting machinery and other construction equipment can be seen. "Monkey slide" spans the canyon and can be seen in the...
1934-04-28
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Aerial view of the Hoover Dam construction site, looking upstream on the Colorado River in Black Canyon. Concrete pouring forms and other construction equipment are seen on the partially finished dam face and in the river bed below it. Unfinished...
1934-03-16
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Aerial view taken looking upstream on the Colorado River in Black Canyon of the Hoover Dam construction site. Multiple concrete pouring forms and other construction equipment are seen on the dam face. Temporary buildings and a temporary bridge...
1933-12-27
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View from downstream on the Colorado River of construction on Hoover Dam. The dam wall is covered with scaffolding, ladders, concrete pouring forms and other construction equipment. The base of the power house is seen in the foreground.
1934-01-24
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Aerial photo of the Hoover Dam construction site showing forms for poring concrete. Forms for the power house gallery are visible. A train winds along the canyon wall, there is high scaling equipment on the walls, and the Colorado River can be...
1933-11-22
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A view of the Colorado River flowing through Black (not Boulder) Canyon. On the right side of the canyon there is a road with two automobiles, some construction equipment, and a construction worker.
2024-05-15
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This photograph shows a close-up of a construction worker's hands as he places a rock into the end of a tool. Beneath the workers hands is a wooden form that is partiioned off and holds various size rocks.
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Close-up of the Arizona spillway during construction. Roads and buildings are visible.
1933-10-07
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View of multiple concrete pouring forms in the Hoover Dam construction site in Black Canyon. A concrete pouring bucket is suspended over the site by a cableway. A temporary railway bench is seen in the canyon wall in the upper left. Vehicles...
1933-07-26
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Construction workers and equipment are seen in a cut-off trench in the upstream side of the Hoover Dam construction site.
1933-06-23
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Shows blasting at the Hoover Dam construction site. A road along the Colorado River and a building on the opposite shore can be seen as well as mountains in the background.
2024-05-15
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View from a partially washed-out truck bridge, looking across the flooded Colorado River during construction of Hoover Dam. The mouths of two diversion tunnels are seen in the cliff wall in the background.
1932-02-10
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