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Displaying results 814421 - 814430 of 866615

Photograph of blast at same place shown above, taken from opposite, on Black Canyon Highway: photographic print, 1932 August 16

Level of Description

Item

Archival Collection

Six Companies, Inc. Hoover Dam Photograph Collection

Archival Component

Huge billows of rock and dust pour over canyon rim and descend to river below: photographic print, 1932 August 24

Level of Description

Item

Archival Collection

Six Companies, Inc. Hoover Dam Photograph Collection

Archival Component

Blast on Arizona intake tower excavation, which has filled canyon with smoke and dust. Upper steel suspension bridge shown in background: photographic print, 1932 August 16

Level of Description

Item

Archival Collection

Six Companies, Inc. Hoover Dam Photograph Collection

Archival Component

Close-up of upper portal of diversion tunnels Number 3 and 4, during preparations for blast: photographic print, 1932 November 13

Level of Description

Item

Archival Collection

Six Companies, Inc. Hoover Dam Photograph Collection

Archival Component

Close-up of upper portals of diversion tunnels Number 3 and 4, showing flow in diversion tunnel Number 4, shortly after blast: photographic print, 1932 November 13

Level of Description

Item

Archival Collection

Six Companies, Inc. Hoover Dam Photograph Collection

Archival Component

Dumping materials at temporary pile bridge to complete diversion of Colorado River: photographic print, 1932 November 13

Level of Description

Item

Archival Collection

Six Companies, Inc. Hoover Dam Photograph Collection

Archival Component

Upper portals of diversion tunnels Number 3 and 4 and temporary dyke, after diversion of Colorado River was completed: photographic print, 1932 November 26

Level of Description

Item

Archival Collection

Six Companies, Inc. Hoover Dam Photograph Collection

Archival Component