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UNLV Digital Collections
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Interior of diversion tunnel no. 3, showing invert forms used for pouring concrete slabs. A trimming jumbo used for aligning the gauge of the tunnels is seen in the background. The tunnel is illuminated by electric lights.
1932-03-18
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View of rock blasting in Black Canyon in preparation for construction of the Hoover Dam intake towers.
1932-03-28
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View of rock blasting in Black Canyon from downstream on the Colorado River.
1932-03-28
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View taken from the cliffs on the Arizona side of the Colorado River of the low level concrete mixing plant. Roads and buildings are seen near the river bank on the Nevada side.
1932-03-28
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View of the interior of diversion tunnel no. 3, showing the invert and side wall sections of three-feet thick concrete lining. The tunnel is illuminated by electric lights. Two construction workers stand inside the tunnel.
1932-06-02
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View of the interior of diversion tunnel no. 2, showing the completed invert and side wall sections of concrete lining. The tunnel is illuminated by electric lights. On the tunnel floor, construction workers stand by a truck which is carrying two...
1932-06-02
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View of the interior of diversion tunnel no. 3, showing completed side wall sections of concrete lining. The tunnel is illuminated by electric lights. Concrete pouring forms and a gantry crane are seen in the rear of the tunnel.
1932-06-22
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View of the interior of a diversion tunnel showing the side-wall jumbo used for placing of the concrete tunnel lining. The tunnel and jumbo are illuminated by electric lights. A construction worker stands in the foreground. A truck loaded with...
1932-06-20
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View of outdoor construction of steel forms to be used for lining the arch sections of the diversion tunnels. Construction workers are seen, one of them operating a bulldozer. A power shovel can be seen behind the steel forms.
1932-06-18
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A completed section of steel form to be used for the lining of the diversion tunnels is hoisted by a cable into Black Canyon while construction workers supervise.
1932-06-18
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A completed section of steel form to be used for lining the diversion tunnels is seen being hoisted on a cableway over the Colorado River. A construction worker can be seen standing on top of the form.
1932-06-10
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Shows the Six Companies construction camp at Cape Horn on the Colorado River. Shows several buildings on the bank above the river.
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Shows a motor lorry (bus)parked in Boulder City; dam workers are exiting the lorry as they return from the day shift on Hoover Dam. Portions of buildings are visible.
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This shows the Colorado River from a lookout point above. Two people are faintly visible and as well as part of the road . There are mountains in the background which are covered with water today.
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Shows a truck on the road to the Hoover Dam site. There are mountains visible.
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Shows construction equipment and buildings in Black Canyon. There is a platform built on the side of the canyon and a cable line overhead transporting trams.
2024-11-01
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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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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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An overview of the Hoover Dam area showing mountains, the Colorado River, and Fortification Hill.
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Two men, possibly surveyors, standing on the edge of the canyon at an overlook known as "Crows Nest", overlooking the Hoover Dam site in Black Canyon. The Colorado River is visible below. Photo is actually a postcard.
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Two construction workers at the Hoover Dam site working with heavy machinery.
2024-11-01
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Photo shows workers and machinery involved in laying railroad track near Boulder Canyon. There are several structures in the picture and mountains in the background.
2024-11-01
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Photo shows a power shovel and dump truck doing construction work in Black Canyon (not Boulder Canyon).
2024-11-01
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Shows construction equipment, a boat, and various structures. Location is a rocky outcrop in Black Canyon (not Boulder Canyon) on the bank of the Colorado River.
2024-11-01
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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.
2024-11-01
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