Search for all of "Construction c", all of "Six Companies -- Employees"

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      Title Description
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Interior of Six companies, Inc. machine shop Shows men working on heavy machines in a Six companies, Inc. machine shop.
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Power shovel and trucks opening up an adit Construction workers are using a power shovel and trucks to open up an adit as part of the construction of Hoover Dam.
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First 40 foot slab of concrete poured in lining diversion tunnels This is a view of the interior of a diversion tunnel when the first 40 foot concrete slab was poured to line the tunnel during construction of Hoover Dam. Lights illuminate the scene and a construction worker can be...
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Day shift workers boarding transports for the return journey to Boulder City Dam construction workers are boarding transport buses for the return ride to Boulder City.
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Train car dumping gravel into hopper at gravel plant A side-dump car from the gravel pits is dumping gravel into a depressed track hopper at the gravel plant. Train and buildings are visible. An employee is watching the process.
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Close-up of sand classifier in the gravel plant. The photograph is a close-up view of the sand classifier machinery in the gravel plant. Two employees are observing.
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Sand classifer in gravel plant producing sand for storage Two workers are monitoring the rake type sand classifier in the gravel plant. This machinery produced finished sand for storage and the stored gravel can be seen in the background.
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View of the concrete lining in the diversion tunnels Construction workers are pouring concrete to line the diversion tunnels. Lights illuminate the project. Huge buckets hang from a crane.
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Agitators dumping concrete into buckets Construction workers are operating machinery (agitators) which dump concrete into buckets. Location is the interior of a diversion tunnel at the Hoover Dam construction site.
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Construction worker operating a tractor during construction of Hoover Dam A construction worker is driving a caterpillar tractor in the rocks.
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Temporary cableway spanning the Colorado River near Lookout Point A temporary cableway filled with construction workers is poised above the Colorado River in Black Canyon near Lookout Point. The Arizona spillway operations are shown in the background.
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View showing method of finishing slabs in invert lining. Construction workers are operating machinery to finish slabs in the invert lining of a diversion tunnel at the Hoover Dam site.
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Trucks hauling concrete in the diversion tunnel This photo shows trucks and equipment used for hauling and pouring concrete to form the invert lining in a diversion tunnel at Hoover Dam. Also shows some construction workers.
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Close-up of trimming jumbo Shows construction workers on the trimming jumbo which was used to scale the walls of the diversion tunnels and remove projecting rock. The tunnel is at the Hoover Dam construction site.
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Construction bridges across the Colorado River This is a view of a truck loaded with equipment driving across a bridge spanning the Colorado River at Hoover Dam site. Construction workers and equipment are shown on the bank of the river. At the right is...
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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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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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