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Displaying results 801721 - 801730 of 821604

Interior view of Nevada valve house, looking downstream. Note N-6 emergency gate being installed: photographic print, 1935 August 27

Level of Description

Item

Archival Collection

Six Companies, Inc. Hoover Dam Photograph Collection

Archival Component

Nevada valve house roof, looking upstream. Note low strength pedestals and double layer of railroad iron being placed: photographic print, 1935 August 27

Level of Description

Item

Archival Collection

Six Companies, Inc. Hoover Dam Photograph Collection

Archival Component

Switchyard control house, yard, and present sub-station. View taken looking toward Boulder Dam: photographic print, 1935 August 26

Level of Description

Item

Archival Collection

Six Companies, Inc. Hoover Dam Photograph Collection

Archival Component

View of Arizona side of lower portals clean-up: photographic print, 1935 August 26

Level of Description

Item

Archival Collection

Six Companies, Inc. Hoover Dam Photograph Collection

Archival Component

Nevada construction adits, valve house, and plug adit portal. Note absence of upstream end of lower portal road tunnel: photographic print, 1935 August 21

Level of Description

Item

Archival Collection

Six Companies, Inc. Hoover Dam Photograph Collection

Archival Component

View of Nevada side of lower portals clean-up: photographic print, 1935 August 26

Level of Description

Item

Archival Collection

Six Companies, Inc. Hoover Dam Photograph Collection

Archival Component

View taken from downstream Nevada plug adit, looking toward Number 2 downstream plug: photographic print, 1935 August 27

Level of Description

Item

Archival Collection

Six Companies, Inc. Hoover Dam Photograph Collection

Archival Component

Looking upstream toward Boulder Dam and power house: photographic print, 1935 September 26

Level of Description

Item

Archival Collection

Six Companies, Inc. Hoover Dam Photograph Collection

Archival Component

From top of Boulder Dam, looking down on power house. Roof slab is practically completed, and canyon wall gutters are in place: photographic print, 1935 September 26

Level of Description

Item

Archival Collection

Six Companies, Inc. Hoover Dam Photograph Collection

Archival Component

President Roosevelt dedicating Boulder Dam: photographic print, 1935 September 30

Level of Description

Item

Archival Collection

Six Companies, Inc. Hoover Dam Photograph Collection

Archival Component