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Photograph of diversion tunnel construction, Hoover Dam, circa 1932

Date

1931 to 1933

Description

Diversion tunnels still under construction, but in use.

Image

Photograph of Hoover Dam drill holes diagram, circa 1932

Date

1931 to 1933

Description

Diagram of log holes, Hoover (Boulder) Dam. Note on back: "Copy of Bureau of Reclamation diagram. Stuck some drills in river bottom and recovered them after the river was diverted. - W. A. Davis, 1992."

Image

Photograph of dam construction at night, Hoover Dam, November 1933

Date

1933-11

Description

Panoramic image of Hoover (Boulder) Dam construction, early evening view, November 1933. Lights line the canyon walls as workers proceed with construction. Bright white light in the sky may possibly be a full moon.

Image

Interior view of the spillway at Hoover Dam in Arizona: photographic print

Date

1935-01-02

Description

From the UNLV Libraries Single Item Accession Photograph Collection (PH-00171). View inside Nevada spillway tunnel.

Image

Photograph of penstock tunnel, Hoover Dam, circa early 1930s

Date

1931 to 1935

Archival Collection

Description

Black and white image of the penstock being put in a tunnel at Hoover (Boulder) Dam.

Image

Photograph of outlet valves, Hoover Dam, circa late 1930s

Date

1935 to 1939

Archival Collection

Description

Black and white aerial image from the downstream side of Hoover (Boulder) Dam canyon wall outlet valves being flooded.

Image

Photograph of outlet valves, Hoover Dam, circa late 1930s

Date

1935 to 1939

Archival Collection

Description

Black and white image from the downstream side of Hoover (Boulder) Dam canyon wall outlet valves being flooded.

Image

Photograph of outlet valves, Hoover Dam, circa late 1930s

Date

1935 to 1939

Archival Collection

Description

Black and white image from the downstream side of Hoover (Boulder) Dam canyon wall outlet valves being flooded.

Image

Photograph of outlet valves, Hoover Dam, circa late 1930s

Date

1935 to 1939

Archival Collection

Description

Black and white image from the downstream side of Hoover (Boulder) Dam canyon wall outlet valves being flooded.

Image

Photograph of outlet valves, Hoover Dam, circa late 1930s

Date

1935 to 1939

Archival Collection

Description

Black and white image from the downstream side of Hoover (Boulder) Dam canyon wall outlet valves being flooded.

Image