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Displaying results 1541 - 1550 of 174334

Film transparency of workers at the rock opening of the Hoover Dam diversion tunnel, circa early 1930s

Date

1931 to 1933

Archival Collection

Description

A view of workers and equipment clearing the debris at the the rock opening of the Hoover Dam diversion tunnel.

Image

Film transparency of workers at the opening of the Hoover Dam Diversion Tunnel, January 28, 1932

Date

1932-01-28

Archival Collection

Description

A view of workers placing holes for pins to hold the wood base cylinder at the rock opening of the diversion tunnel.

Image

Film transparency of workers posing inside the Hoover Dam diversion tunnel, April 12, 1932

Date

1932-04-12

Archival Collection

Description

A picture of workers posing on top of the frame at the beginning of the Hoover Dam diversion tunnel.

Image

Film transparency of the beginning wood base of the Hoover Dam diversion tunnel, January 31, 1934

Date

1934-01-31

Archival Collection

Description

A view of the beginning wood base for the Hoover Dam diversion tunnel.

Image

Film transparency of workers and equipment inside Hoover Dam diversion tunnel, October 30, 1933

Date

1933-10-30

Archival Collection

Description

An image of workers with a steam shovel and dump truck inside a diversion tunnel.

Image

Film transparency of truck inside Hoover Dam diversion tunnel, December 8, 1931

Date

1931-12-08

Archival Collection

Description

A view of a construction truck loaded with wood for a tunnel inside Hoover Dam.

Image

Film transparency of Hoover Dam diversion tunnels, circa early 1930s

Date

1930 to 1935

Archival Collection

Description

A grayscale image showing water beginning to divert through tunnels.

Image

Film transparency of Hoover Dam diversion tunnels in use, circa mid 1930s

Date

1935

Archival Collection

Description

A view of diversion tunnels in use on the completed dam.

Image

Film transparency of aerial view of completed Hoover Dam, circa 1935

Date

1935

Archival Collection

Description

An aerial showing diversion tunnels in use on the completed dam.

Image

Film transparency of Hoover Dam, circa late 1930s-1950s

Date

1936 to 1959

Archival Collection

Description

An aerial view showing Hoover Dam, Lake Mead, and diversion tunnels in use.

Image