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Displaying results 91581 - 91590 of 96797

Film transparency of Herbert Hoover touring the Boulder Canyon Project, November 12, 1932

Date

1932-11-12

Description

Black and white image of President Herbert Hoover and official party during an inspection tour of the Boulder Canyon Project. Note: Boulder Dam was officially renamed Hoover Dam in 1947.

Image

Film transparency showing construction on a Hoover Dam spillway tunnel, April 26, 1946

Date

1946-04-26

Description

Black and white image with the following printed description: "View showing extension work on Nevada Spillway Tunnel #2 at Hoover Dam. Work performed by Guy F. Atkinson Company of San Francisco, California." Note: Boulder Dam was officially renamed Hoover Dam in 1947.

Image

Film transparency of the Nevada spillway, Hoover Dam, August 29, 1933

Date

1933-08-29

Description

Black and white image of Hoover Dam with the following printed description: "Looking upstream through Nevada spillway. Overflow weir under construction at right, completed section of channel lining and parapet at left." Note: Boulder Dam was officially renamed Hoover Dam in 1947.

Image

Film transparency of men pouring concrete, Hoover Dam, June 6, 1933

Date

1933-06-06

Description

Black and white image of Hoover Dam with the following printed text: "First 8 cubic yard batch of concrete being placed in Boulder Dam proper." Note: Boulder Dam was officially renamed Hoover Dam in 1947.

Image

Film transparency of penstock pipes, Hoover Dam, December 10, 1933

Date

1933-12-10

Description

Black and white image of Hoover Dam with the following printed description: "Thirty-foot-diameter-steel-penstock pipe set up from joint assembly at the Babcock and Wilcox Co. Plant." Note: Boulder Dam was officially renamed Hoover Dam in 1947.

Image

Film transparency of an evaporation tower, Hoover Dam, June 26, 1933

Date

1933-06-26

Description

Black and white image of Hoover Dam with the following printed description: "Evaporation tower for dam precooling system located on downstream cofferdam. View from Nevada outlet house bench." Note: Boulder Dam was officially renamed Hoover Dam in 1947.

Image

Film transparency of the upstream face of Hoover Dam, February 27, 1935

Date

1935-02-27

Description

Black and white image of Hoover Dam with the following printed description: "Upstream face of the dam as seen from portal of construction tunnel on Nevada side of Black Canyon." Note: Boulder Dam was officially renamed Hoover Dam in 1947.

Image

Film transparency of Nevada turbine gallery, Hoover Dam, June 10, 1936

Date

1936-06-10

Description

Black and white image of Hoover Dam with the following printed description: "View looking upstream in the Nevada turbine gallery. The runner for turbine N-2 has been placed and the wicket gates are about to be set." Note: Boulder Dam was officially renamed Hoover Dam in 1947.

Image

Film transparency of visitors at Hoover Dam, May 30, 1937

Date

1937-05-30

Description

Black and white image of Hoover Dam with the following printed description: "View of Memorial Day crowds waiting to visit the powerplant. Note persons holding tickets ready for guide to collect. Roof of cashier's booth may be seen beyond awning." Note: Boulder Dam was officially renamed Hoover Dam in 1947.

Image

Film transparency of people standing in tunnel, Hoover Dam, December 27, 1938

Date

1938-12-27

Description

Black and white image of Hoover Dam with the following printed description: "View of 50-foot diameter tunnel below Arizona Tunnel Plug outlet works with Stoney Gate at end of tunnel lowered." Note: Boulder Dam was officially renamed Hoover Dam in 1947.

Image