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Displaying results 801821 - 801830 of 821583

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

To request this item in person:
Collection Number: PH-00267
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Oversized Box 03

Archival Component

Interior of diversion tunnel Number 3, showing method of pouring alternate slabs in side wall section of tunnel lining. Lining form is shown in background: photographic print, 1932 June 22

To request this item in person:
Collection Number: PH-00267
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Oversized Box 03

Archival Component

Interior of diversion tunnel Number 2, near upper portal. Invert and side wall sections of lining have been completed. Two cubic yard buckets for pouring concrete are shown on truck: photographic print, 1932 June 02

To request this item in person:
Collection Number: PH-00267
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Oversized Box 03

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

To request this item in person:
Collection Number: PH-00267
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Oversized Box 03

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

To request this item in person:
Collection Number: PH-00267
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Oversized Box 03

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

To request this item in person:
Collection Number: PH-00267
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Oversized Box 03

Archival Component

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

To request this item in person:
Collection Number: PH-00267
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Oversized Box 03

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

To request this item in person:
Collection Number: PH-00267
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Oversized Box 03

Archival Component

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

To request this item in person:
Collection Number: PH-00267
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Oversized Box 03

Archival Component

Scaling down canyon wall, in excavation for intake tower on Nevada side: photographic print, 1932 April 01

To request this item in person:
Collection Number: PH-00267
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Oversized Box 03

Archival Component