Hoover Dam. May 1932. Laying forms for concrete in one of the four diversion tunnels, Hoover Dam. Oakes.

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Courtesy of UC Berkeley, Bancroft Library

http://www.oac.cdlib.org/ark:/13030/tf5j49p1vq/?order=1

Title:

Hoover Dam. May 1932. Laying forms for concrete in one of the four diversion tunnels, Hoover Dam. Oakes.

Contributing Institution:

UC Berkeley, Bancroft Library