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Displaying results 160071 - 160080 of 830966

Photograph of mixing plant, Hoover Dam, circa 1933

Date

1932 to 1934

Description

Aerial view of Hoover Dam site, looking down at high mix plant location.

Image

Photograph of men at mixing plant, Hoover Dam, circa 1933

Date

1932 to 1934

Description

View of workers starting to build one of the two high cement mix plants. Transport cars used to carry small quantities of tools and supplies.

Image

Photograph of water tanks and mixing plant, Hoover Dam, circa 1933

Date

1932 to 1934

Description

Water tanks and upper batch plant for cement. Note on back: ""Trains took cement from this plant down to the dam site. - W. A. Davis.""

Image

Photograph of water pipe, Hoover Dam, circa 1933

Date

1932 to 1934

Description

Extension of water pipe to upper batch plant.

Image

Photograph of mixing plant, Hoover Dam, circa 1933

Date

1932 to 1934

Description

View of lower mix plant for concrete.

Image

Photograph of pump station, Hoover Dam, circa 1933

Date

1932 to 1934

Description

View of pump station at lower batch plant. Note on back: ""This photo not taken by W. A. Davis. Photographer may have been Frank Black. - W. A. Davis.""

Image

Photograph of pump station, Hoover Dam, circa 1933

Date

1932 to 1934

Description

View of inside of pump station at lower batch plant.

Image

Photograph of mixing plant, Hoover Dam, circa 1933

Date

1932 to 1934

Description

View of the control room in mixing plant where all concrete is mixed for diversion tunnels. A complete record is made by graph of each batch of concrete mixed. ""Scales for meadsuring mixing components. - W.A. Davis.""

Image

Photograph of water treatment plant, Boulder City (Nev.), circa 1931

Date

1930 to 1932

Description

Interior of water treatment plant, including machinery at the plant.

Image

Photograph of railroad, Hoover Dam, circa 1932

Date

1931 to 1933

Description

Portion of railroad leading to Hoover [Boulder] Dam. Workers can be seen in the background, with wheelbarrows and various materials in the foreground.

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