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Workers placing holes for pins to hold the wood base cylinder at the rock opening of the diversion tunnel, 1932 January 28
Level of Description
File
Archival Collection
L. F. Manis Photograph Collection
Archival Component
One of the drilling jumbos ready for action on the upper portal of Diversion Tunnel Number 1: photographic print, 1932 January 28
Level of Description
Item
Archival Collection
Six Companies, Inc. Hoover Dam Photograph Collection
Archival Component
Concrete lining in the diversion tunnels, two cubic yard buckets suspended from the Gantry crane, 1932 March 23
Level of Description
File
Archival Collection
Burrell C. Lawton Photograph Collection on the Hoover Dam
Archival Component
View of first-aid and hospital buildings near the lower diversion tunnels and temporary bridge (1 of 6 views): photographs, approximately 1932
Level of Description
Item
Archival Collection
Ernest Mitchell Pratt Photographs
Archival Component
View of first-aid and hospital buildings near the lower diversion tunnels and temporary bridge (2 of 6 views): photographs, approximately 1932
Level of Description
Item
Archival Collection
Ernest Mitchell Pratt Photographs
Archival Component
View of first-aid and hospital buildings near the lower diversion tunnels and temporary bridge (3 of 6 views): photographs, approximately 1932
Level of Description
Item
Archival Collection
Ernest Mitchell Pratt Photographs
Archival Component
View of first-aid and hospital buildings near the lower diversion tunnels and temporary bridge (5 of 6 views): photographs, approximately 1932
Level of Description
Item
Archival Collection
Ernest Mitchell Pratt Photographs
Archival Component
Truck-mounted giant drilling rig used to cut the diversion tunnels in Black Canyon during construction, 1930-1936
Level of Description
File
Archival Collection
Virginia "Teddy" Fenton Photograph Collection on the Hoover Dam and Boulder City, Nevada
Archival Component
Close up of power shovel cutting lowest road to the diversion tunnels: photographic print and negative, approximately 1930 to 1932
Level of Description
Item
Archival Collection
Ray Cutright Collection of Winthrop A. Davis Photographs
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
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