Placing concrete with 4-cubic yard transit mixer in column 'M'-13. Transit mixers are used where the small size of forms prohibits the use of the 8-cubic yard bottom-dump buckets.; Scope and content: Photograph from Volume Two of a series of photo albums documenting the construction of Hoover Dam, Boulder City, Nevada.

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Size: 5301px × 3773px
Photo credit: © Alpha Stock / Alamy / Afripics
License: Licensed
Model Released: No

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