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701 - 725 of 1090 Items << < 24 25 26 27 28 29 30 31 32 33 > >>
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View from Black Canyon of the area which, when submerged, will become the Hoover Dam reservoir. In the foreground, a car is seen traveling a dirt road, and a lone construction worker views the scene from atop the rocks. The hills in the...
1932-08-15
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Photo shows the Arizona diversion tunnels during the construction of Hoover Dam. Two men, railroad trucks, a temporary bridge, some temporary structures and a cable over the canyon are also shown.
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Close-up of construction workers using a drilling jumbo to excavate the interior of one of the diversion tunnels. The tunnel is illuminated by floodlight.
1932-03-08
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View of the flooded Colorado River in Black Canyon during construction on Hoover Dam. The portals of diversion tunnels nos. 3 and 4 are seen in the canyon wall and bridges and catwalks cross the river. Some buildings are seen in the riverbed...
1932-02-10
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View of construction on Hoover Dam from a lookout point on the Nevada side. The dam wall is nearly completed and construction on the intake towers is seen in the background. In the foreground, people stand at the edge of the lookout point and...
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Overhead view of the construction of Hoover Dam in Black Canyon. Looking upstream, the Colorado River is visible above the dam site. Also shows concrete forms, a train winding along the side of the canyon, and various construction buildings.
1933-09-07
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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. Temporary buildings are also seen in the foreground.
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Aerial view of multiple concrete pouring forms on Hoover Dam, seen from downstream on the Colorado River in Black Canyon. Cables, pulleys and catwalks are suspended over the river. Some construction equipment can been seen on the mountains.
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This photo shows the construction of the foundation of Hoover Dam on the floor of Black Canyon. Trucks, construction equipment, and cranes can be seen as well as several construction buildings. Photo taken from high above the canyon.
1933-07-22
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This is a view of the wooden concrete forms used in the construction of Hoover Dam, looking upstream. Buildings and vehicles are visible. The photo was taken from high above the site.
1933-08-15
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View of the Colorado River running through Black Canyon at the Hoover Dam construction site. Workers can be seen walking over bridges and catwalks that are suspended over the river, and on dirt roads that run alongside the river. The newly-dug...
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View of Black Canyon with construction equipment on the canyon floor and cables suspended over the canyon. High scalers can be seen on the rock face on the left side of the photo.
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Shows the construction of Hoover Dam from the downstream side. The power houses are nearly completed and one of the portals to the diversion tunnels is visible. There are trucks and buildings on the floor of the canyon. A cable is suspended...
1935-09-26
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Aerial view of Hoover Dam and the surrounding area showing the downward face of the dam, the intake towers, Lake Mead and a portion of the Colorado River. Water is flowing from the outlet works.
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Shows Black Canyon and the Colorado River at the site of the construction of Hoover Dam. Some roads and railroad tracks are visible as well as buildings. Shown also are railroad cars and a temporary suspension bridge.
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View of construction on the canyon floor of Black Canyon. Trucks and roads are visible. Some buildings can be seen also. The concrete pouring forms and a cofferdam are also visible.
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Aerial view of Hoover Dam and surrounding area after completion of the dam. Shows view from upstream side. Shows part of Lake Mead (the reservoir).
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Aerial view of Hoover Dam showing the downstream face and Lake Mead (the reservoir).
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"Head tower hoist house and anchorage of permanent 150 ton cableway at Boulder Dam runs from upper end of hi[gh]mix gulch." (handwritten inscription on back of photo) Construction workers, trucks, and buildings are also visible.
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Aerial view of Hoover Dam showing the upstream face, the power houses, one of the portals to a diversion tunnel, and the intake towers. Lake Mead (the reservoir) is filling and a portion of the Colorado River is also visible.
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Shows the Colorado River and Black Canyon during the early stages of the construction of Hoover Dam. A temporary bridge spans the river and some construction workers are on the shore.
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Shows the construction of the gravel plant near the Hoover Dam site. A crane is lifing equipment. Construction workers, cars and trucks, and buildings can be seen.
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Shows one of the portals to the diversion tunnels. A portion of the Colorado River is visible as well as construction workers and construction buildings.
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View of the Hoover Dam construction site showing equipment being lowered by cable, buildings, and other construction equipment. The Colorado River is partially visible as is the cofferdam.
1933-05-22
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Shows a man standing inside a diversion tunnel at the Hoover Dam site.
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