Search for exactly "Blasting"

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Blasting in the walls of Black Canyon for intake tower construction View of rock blasting in Black Canyon in preparation for construction of the Hoover Dam intake towers.
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Blasting in Black Canyon seen from the Colorado River View of rock blasting in Black Canyon from downstream on the Colorado River.
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Blasting at Hoover Dam construction site. 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.
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Blasting on the Arizona side of the cableway bench excavation View from the lower portal of railroad tunnel no. 1 of rock blasting on the Arizona side of Black Canyon. Power poles and power lines are seen lining a dirt road leading to the blasting site. Other cables hang...
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Rock blasting in Black Canyon View from a dirt road of rock blasting in Black Canyon. Electric power poles and lines run along the road and other cables are suspended over the canyon. A truck is seen in the foreground.
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Close-up of rock blasting in Black Canyon, taken from the Black Canyon Highway Close-up of enormous smoke and dust clouds filling Black Canyon during rock blasting for construction of Hoover Dam.
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Rock blasting on the Arizona side of Black Canyon View of Black Canyon and the Colorado River; smoke and dust clouds fill the canyon at the site of rock blasting for the Arizona intake towers. A steel suspension bridge is seen crossing the river upstream.
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Blasting and construction on Hoover Dam Blasting in Black Canyon for construction. Construction equiqment can be seen along side the Colorado River.
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Beginning blasting for the Hoover Dam Blasting for the beginning of the Hoover Dam in Black Canyon.
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Blasting -- Hoover Dam site View of blasting at Black Canyon during construction of Hoover Dam. Part of the Colorado River is visible as are construction buildings and equipment on the side of the canyon.
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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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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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Colorado River problem Discusses possible uses of the Colorado River for water supply, irrigation, and power. Also discusses flood control on the Colorado. Recommends a comprehensive plan for development. Reprinted from Transactions, American Society of Civil Engineers, v. 88. "Presented at the...
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Construction site at Hoover Dam Photo shows various buildings and structures, railroad tracks, trucks and power lines. There is blasting taking place in the background between the mountains.
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Blast at Hoover Dam site. This photograph shows blasting of a hillside at the Hoover Dam site.
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View of Black Canyon This shows a view of the Colorado River flowing through Black Canyon not (Boulder). To the right of the picture there is a cloud of dirt and debris drifting into the air from blasting for the dam site.
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Blast scales down the canyon walls for the construction of the intake towers This picture shows blasting in Black Canyon to scale down the canyon walls so that the intake towers can be built for Hoover Dam. Part of the river is visible.
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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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