Search for all of "Transportation", all of "Construction Workers", all of "Buildings And Structures", all of "Automobiles"

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      Title Description
1 Object thumbnail
Switchyard control circuit tunnel under construction -- Hoover Dam site Shows construction work on the switchyard control circuit tunnel. Various structures are visible, as well as roads, and automobiles. A power shovel is excavating. In the foreground is the power sub-station. The Babcock and Wilcox Company...
2 Object thumbnail
Construction of gravel plant near Hoover Dam site Shows the construction of the gravel plant near the Hoover Dam site. A crane is lifing equipment. Construction workers, cars and trucks, and buildings can be seen.
3 Object thumbnail
Construction of Hoover Dam Shows the head tower hoist house and permanent cableway. Cars and trucks are visible on the road across the dam as well as next to the hoist house. A transmission tower can be seen and construction workers are...
 

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