Search for exactly "Tractors"

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1 Object thumbnail
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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Construction worker at Hoover Dam. A construction worker is operating a construction tractor with an attached trailer that is filled with boulders, rocks and dirt.
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Diversion of the Colorado River into diversion tunnel no. 1 as the gate on diversion... View of the diversion of the Colorado River into diversion tunnel no. 1 as the gate on diversion tunnel no. 4 is being lowered (on the left). A line of construction workers can be seen standing on the bank of...
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Penstock pipes at Babcock & Wilcox Plant Shows a giant penstock pipe being lifted by hoisting machinery. Several construction workers are looking on and one is helping with the lifting. A tractor is also visible.
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Six Companies trailer Shows Six Companies' employees standing around a trailer loaded with construction materials for Hoover Dam. A tractor is also visible. Sign on the truck says: "Six Companies Inc. LaCross Tu-Way trailer. Net load 185 tons. Total load...
 

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