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301 - 325 of 1090 Items << < 8 9 10 11 12 13 14 15 16 17 > >>
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Panoramic view of the Hoover Dam construction site. One of the lower portals to a division tunnel can be seen. Buildings, trucks, and the cofferdam are also visible. A portion of the Colorado River is in the scene.
1933-06-27
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Shows men and trucks working on the cofferdam at the Hoover Dam site. Power shovels and other construction equipment are also visible.
1933-04-20
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Shows giant penstock pipes and two automobiles at the Babcock & Wilcox Plant, near the construction site of Hoover Dam.
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View of the crest of Hoover Dam from the Arizona side. The intake towers stand in the middle of the photo. The spillway on the Arizona side is in the foreground. The Nevada spillway is in the background. The reservoir is over two-thirds full....
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"Downstream from upper portals. Note the two portals on Arizona side of river and new suspension bridge under construction."[hand-written inscription on the back of the photo]
Cables are visible overhead and a truck is also in the picture.
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"Towards canyon, top of shed is to be entrance to Nevada spillway. Water will be up to about the top of shed". (hand-written inscription)
Shows site of the future entrance to the Nevada Spillway in Black Canyon. There is a truck parked at the site.
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"View of upper portals tunnel #1. showing R.R. trestle and gate works." (inscription on back of photo) Concrete pouring forms are visible in the diversion tunnel.
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Shows construction workers, truck, and power shovel inside a diversion tunnel at the Hoover Dam construction site. Electric lights illuminate the scene.
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Shows equipment being transported to the canyon floor at the Hoover Dam construction site. Cableways overhead extend across the canyon.
1933-04-02
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View of construction in Black Canyon at the Hoover Dam site. Construction workers are standing by the railroad tracks looking at a dynamite blast that is taking place in the distance. The Colorado River is visible as are various pieces of...
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Aerial view of Hoover Dam and the mountains in the surrounding area. The Colorado River and the reservoir (Lake Mead) are visible.
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Aerial view of Hoover Dam showing the downstream face of the dam, the Colorado River below the dam, and the reservoir (Lake Mead) behind it. Also visible are the mountains and roads in the surrounding area.
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Photo taken from quite a distance down Black Canyon, showing the downstream face of the dam, the power houses, the Colorado River, and one of the portals of the diversion tunnels.
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Close-up of the lower face of Hoover Dam showing construction on the central power house at the bottom. The top portions of the intake towers are seen behind the dam face. Scaffolding is present on the dam face.
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Shows construction on the two Nevada intake towers. Also shows part of the upstream face of Hoover Dam with construction going on on the top of the dam. A cableway, construction equipment such as derrick cranes, and tunnel openings are also...
1935-01-28
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Concrete pouring forms being put in place for construction of the Nevada valve house. Ropes for high scaling and temporary buildings are also visible.
1935-01-02
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Aerial view of Hoover Dam looking downstream. Lake Mead, the Colorado River, and the crest of the dam are visible.
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Night view of the construction of one of the spillways at Hoover Dam. The view looks straight down into the spillway and under the bridge which spans it. The scene is lit by electric lighting. Construction equipment is visible.
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Aerial view of Hoover Dam and the surrounding area. The outlet works are open, spewing water. The portals to three of the diversion tunnels are visible. The tops of the intake towers, the central power house, and the entire upstream face of the...
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Shows the downstream face of the dam with the outlet works spewing water. The entrances to two of the diversion tunnels are visible. There is a dump truck parked on one of the side roads.
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View of the Nevada valve house and a portion of the Nevada power house at Hoover Dam. The photo was taken from a platform or walkway built into the side of the canyon. Part of the Colorado River is visible.
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Color transparency of the upstream face and top of the dam. The reservoir (Lake Mead) can be seen behind the dam. Several cars are parked at a scenic overlook on the road leading to the dam.
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President Franklin Roosevelt and other dignitaries inspecting the dam from an observation point near one of the intake towers on the Arizona side at the time of the dedication ceremonies.
2024-04-19
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Shows intake towers on upstream side of dam. Towers are almost completed. Coffer dam is still in place. Construction workers and construction equipment including derrick cranes are visible.
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