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Photograph of a penstock pipe in an adit, Hoover Dam, 1930s

Date

1930 to 1939

Description

A section of a penstock pipe arrives at the mouth of an adit leading to the interior of one of the diversion tunnels during the construction of Hoover Dam.

Image

Warren A. Bechtel Album of Hoover Dam: photographic print

Date

1971-05-04

Description

Looking out of the lower portal of Diversion Tunnel #2. Note the size of the men in the entrance. January 25, 1932.