Search for all of "Black Canyon", all of "Construction Workers", all of "Hoover Dam ariz And Nev -- Design And Construction"

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Bucket skips being filled with "muck" from the deep inner gorge of Black Canyon. 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.
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Floor of Black Canyon 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.
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Black Canyon 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.
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Construction crews in Boulder Canyon A view of construction workers digging rocks and boulders on the side of Black (not Boulder) Canyon. The Colorado River is flowing through the bottom of the canyon.
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Bridge across Boulder Canyon at Hoover Dam site. A bridge stretches from one side of Black (not Boulder) Canyon to the other side, with the Colorado River flowing beneath. The background shows scaffolding against the mountainside. A building sits against the mountain at the far end of the...
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High scaling operations 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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Hoover Dam Construction -- blasting Shows four construction workers sitting on the bank of the Colorado River in Black Canyon, watching a dynamite blast at the Hoover Dam site. The blast started the flow of water. Hand-written inscription (sentence in quotes in title)...
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Hoover Dam site, looking downstream View of the beginning of Hoover Dam contruction at the bottom of Black Canyon. Various pieces of equipment, trucks, workers, etc. are visible including a crane suspended above the construction site. The view is from downstream.
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First concrete in Hoover Dam Construction workers are pouring the first concrete for the foundation of Hoover Dam in the bottom of Black Canyon. Large bucket suspended from a crane is visible as well as the concrete frames for the pour.
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Hoover Dam, looking downstream View of the construction of the foundations of Hoover Dam on the floor of Black Canyon. Various pieces of machinery can be seen as well as a construction building. The view is taken from high above but several...
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Concrete pouring forms below a cofferdam in the Hoover Dam construction site Construction workers are seen working on the concrete pouring forms below a cofferdam in the Hoover Dam construction site. Concrete begins to set in the forms. A dragline can be seen in the distance and lines for high scalers are...
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Boulder Canyon. A view of the Colorado River flowing through Black Canyon. In the forground are construction workers standing on a wooden trestle that is built along side the canyon wall. The workers appear to be dumping dirt from the trestle into...
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Construction workers on cliffs in Boulder Canyon. Construction workers use ropes to pull themselves up and down the cliffs in Boulder Canyon. The workers use picks to dig trails on the mountainside.
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Construction workers at bottom of Boulder Canyon Two construction workers stand at what appears to be an entrance to a tunnel in Black (not Boulder) Canyon. Cables are visible above the men.
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Workers on the Colorado River A view of construction workers towing a generator behind the boat that they are using to cross the Colorado River.
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View of construction on roads around the Arizona spillway View of construction on roads around the completed Arizona spillway, looking downstream on the Colorado River in Black Canyon. Curbs and guard rails are being installed. A dragline, two dump trucks and a temporary building are seen near the spillway....
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Looking upstream toward the Nevada intake towers, showing the intake bridge girders in place. View of construction on the Nevada intake towers and a portion of the roadway on the top of the dam face. Construction workers and concrete pouring forms are seen on the top of the dam face on the right. One...
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Hoover Dam construction 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...
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Blasting at Hoover Dam site 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...
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Hoover Dam construcion -- blasting Shows the construction of Hoover Dam. One of the portals of the diversion tunnels is visible. Dynamite blasting is taking place in the canyon and trucks and various construction buildings are visible on the cofferdam. Also shows some...
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Transport trucks at Hoover Dam site Shows transport trucks and construction workers in Black Canyon next to railroad tracks.
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Colorado River -- Beginning construction -- Hoover Dam Shows the Colorado River in Black Canyon at the beginning of construction on the dam. Some cables are suspended across the river, some construction workers are on the roads next to the river, and a power shovel is visible.
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Colorado River in early stages of Hoover Dam construction 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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Construction at lower portal of Hoover Dam Shows construction at the lower portal of Hoover Dam. Part of the bridge is visible as are trucks, buildings, and construction workers. Part of the Colorado River is visible and also the wall of Black Canyon.
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Power houses being constructed at Hoover Dam Shows the concrete pouring forms for the base of the dam. The upper cofferdam is in the background. Cableways, buildings, construction workers and trucks are visible. A railroad track runs along the side of the wall of Black Canyon.
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Hoover Dam site, looking upstream Vehicles, men, and construction equipment are visible. This view was taken in the early stages of the construction of Hoover Dam in the bottom of Black Canyon.
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Constructing highway to dam site A view of construction workers operating tractors as they construct a highway across the desert floor during the summer of 1931.
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View of power houses being constructed at the Hoover Dam site General view of the construction of Hoover Dam, looking upstream. The power houses are being built in this phase. A cableway spans the canyon carrying a tram across. There are several buildings, construction workers, and trucks visible....
 

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