Installation of steel pipes and work underway during the construction of Boulder Dam in the United States.
United States USA Date:1935 Duration:1 min 43 sec Sound:NO SOUND
Boulder Dam site where installation work of steel pipes and concrete work is going on in the United States. The Boulder Dam site in view. Work under way in a tunnel. Rail cars bring concrete to the dam site. Construction underway at the site. Concrete taken in buckets transported by a cable way is dropped into interlocking columns. Men in the columns. A skid way in view. The structure of the dam which has risen to a considerable height. A U-shaped structure also in view.
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