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551 - 575 of 1090 Items << < 18 19 20 21 22 23 24 25 26 27 > >>
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This shows a view looking down into Black (not Boulder) Canyon during early stages of construction of Hoover Dam. The Colorado River is in the process of being diverted and construction equipment and workers can be seen in the foreground.
2024-05-15
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he photo shows two construction dump trucks sitting in front of heavy equipment. This machinery appears to have some sort of pulley apparatus with a bucket attached for hauling dirt or rocks from the construction site. There are two construction...
2024-05-15
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Construction photo of Hoover Dam. Shows a train winding along the canyon, concrete forms, buildings and structures above the dam, construction roads, high scaling equipment and a cable suspended over the canyon. The Colorado River is visible...
1933-08-31
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Freight cars carrying buckets of concrete are seen on a temporary railway built onto the canyon wall at the Hoover Dam construction site. Concrete setting in pouring forms in the dam site and construction workers are seen below.
1933-08-12
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Panoramic view of construction in the upper cofferdam of Hoover Dam in Black Canyon. A dragline is seen in the middle of the canyon floor. Several trucks, construction equipment and construction workers are also seen in the canyon.
1932-11-16
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Two construction workers at the Hoover Dam site working with heavy machinery.
2024-05-15
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A construction worker sits in a Caterpillar bulldozer in front of an unfinished diversion tunnel portal.
1932-03-08
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View of the flooded Colorado River, facing the unfinished portal of diversion tunnel no. 3 during construction of Hoover Dam. A temporary building is seen on the riverbed in the flood waters.
1932-02-10
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View of the Hoover Dam construction site within Black Canyon. The dam wall, intake towers and the road across the top of the dam wall are nearly complete. Construction equipment and buildings are seen in the mountains, and the Colorado River can...
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Construction site of Hoover Dam in Black Canyon, looking upstream. Above the site is the Colorado River. Shows concrete forms, a train winding along the wall of the canyon, various construction buildings, hoisting machinery, and a cable...
1933-09-15
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Overhead view of construction on the dam wall. Concrete pouring forms and buckets are seen.
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View of multiple concrete pouring forms and framework for the intake towers on Hoover Dam. Construction workers, equipment, roads and structures can be seen in Black Canyon, and the Colorado River can be seen in the distance.
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Interior view of construction on the Nevada side of the no. 2 diversion tunnel. The tunnel walls are illuminated by electric lights. A truck and workers are seen in the middle of the tunnel floor.
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Construction workers are operating a power shovel, dumping dirt into a dump truck in a diversion tunnel at Hoover Dam. This is in the early phase of dam construction.
1931-12-08
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View of high scaling operations in Black Canyon. Cables are suspended over the canyon.
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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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