Forms for trashrack structure in place at inlet portal of diversion tunnel No. 3. Port through which tunnel concrete pouring operations will be carried on is seen.; 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: 5584px × 3581px
Photo credit: © Alpha Stock / Alamy / Afripics
License: Licensed
Model Released: No

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