File:"Looking into Black Canyon at Nevada Diversion Tunnel intake portals from top of canyon wall on Arizona side. Trash... - NARA - 293671.jpg
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Captions
Summary
[edit]Author |
Unknown authorUnknown author or not provided |
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Record creator InfoField | Department of the Interior. Bureau of Reclamation. Engineering and Research Center. (05/18/1981 - 03/04/1988) | ||||||||||||||||||||||||||
Title |
"Looking into Black Canyon at Nevada Diversion Tunnel intake portals from top of canyon wall on Arizona side. Trash rack structure and temporary cofferdam are seen. Fill at right is roadbed for Elev. 720 railroad construction which will pass over tunnel portals on trestle and enter tunnel at left. Note top arch concrete jumbo forms being assembled in front of portals." |
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Description |
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Date |
1 June 1932 date QS:P571,+1932-06-01T00:00:00Z/11 |
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Collection |
institution QS:P195,Q518155
NARA's Rocky Mountain Region (Denver) (NRGA), Building 48, Denver Federal Center, West 6th Avenue and Kipling Street, Denver, CO, 80225-0307. |
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Record ID InfoField |
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Source | U.S. National Archives and Records Administration | ||||||||||||||||||||||||||
Other versions |
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Licensing
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current | 10:23, 18 November 2011 | 3,000 × 2,101 (3.71 MB) | US National Archives bot (talk | contribs) | == {{int:filedesc}} == {{NARA-image-full | Title = "Looking into Black Canyon at Nevada Diversion Tunnel intake portals from top of canyon wall on Arizona side. Trash rack structure and temporary cofferdam are seen. Fill at right is ro |
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3,889,385 byte
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"Looking into Black Canyon at Nevada Diversion Tunnel intake portals from top of canyon wall on Arizona side. Trash rack structure and temporary cofferdam are seen. Fill at right is roadbed for Elev. 720 railroad construction which will pass over tunnel portals on trestle and enter tunnel at left. Note top arch concrete jumbo forms being assembled in front of portals." (English)
Photograph from Volume Two of a series of photo albums documenting the construction of Hoover Dam, Boulder City, Nevada. (English)
- Tunnels in Nevada
- Trestle bridges in the United States
- Hoover Dam construction railways
- Suspension bridges in Arizona
- Suspension bridges in Nevada
- Bridges across canyons in Arizona
- Bridges across canyons in Nevada
- Bridges over the Colorado River
- June 1932 United States photographs
- Construction of the Hoover Dam
- Diversion tunnels
- NARA images of the Black Canyon (Colorado River)
- June 1932 in Arizona
- Template Unknown (author)
- US National Archives location: other
- Images from the National Archives and Records Administration
- Artworks without Wikidata item
- US National Archives series: Photograph albums, compiled 1903 - 1972
- Media contributed by the National Archives and Records Administration
- CC-PD-Mark
- PD US Government