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Displaying results 848131 - 848140 of 865514

With the approach of annual spring rise in the river, the temporary truck bridge shown on right has been abandoned: photographic print, 1932 April 12

Level of Description

Item

Archival Collection

Six Companies, Inc. Hoover Dam Photograph Collection

Archival Component

Interior of diversion tunnel Number 3, near upper portal. Invert and side wall sections of three-feet thick concrete lining have been poured: photographic print, 1932 June 02

Level of Description

Item

Archival Collection

Six Companies, Inc. Hoover Dam Photograph Collection

Archival Component

Detail photograph, showing method of construction and operation of side-wall jumbo for placing lining in diversion tunnels: photographic print, 1932 June 29

Level of Description

Item

Archival Collection

Six Companies, Inc. Hoover Dam Photograph Collection

Archival Component

Steel forms for lining the arch sections of diversion tunnels were erected on muck-fill on Nevada side of river: photographic print, 1932 June 18

Level of Description

Item

Archival Collection

Six Companies, Inc. Hoover Dam Photograph Collection

Archival Component

Section of arch jumbo form being transported across river by overhead cableway. Note workman on top of form: photographic print, 1932 June 10

Level of Description

Item

Archival Collection

Six Companies, Inc. Hoover Dam Photograph Collection

Archival Component

Forms were constructed in 11-foot sections and transported to Arizona side by overhead cableways: photographic print, 1932 June 18

Level of Description

Item

Archival Collection

Six Companies, Inc. Hoover Dam Photograph Collection

Archival Component

Temporary cable-way spanning Colorado River, near Lookout Point, provides access to Arizona spillway operations shown in background: photographic print, 1932 April 01

Level of Description

Item

Archival Collection

Six Companies, Inc. Hoover Dam Photograph Collection

Archival Component

Skip-load of workmen being transported across Colorado River from Arizona side: photographic print, 1932 April 01

Level of Description

Item

Archival Collection

Six Companies, Inc. Hoover Dam Photograph Collection

Archival Component