MAKE A MEME View Large Image View looking into Black Canyon from rim of the Arizona wall showing operations in the early stages of the upper... - NARA - 293735.tif Scope and content Photograph from Volume Two of a series of photo albums documenting the construction of ...
View Original:View_looking_into_Black_Canyon_from_rim_of_the_Arizona_wall_showing_operations_in_the_early_stages_of_the_upper..._-_NARA_-_293735.tif (2090x3000)
Download: Original    Medium    Small Thumb
Courtesy of:commons.wikimedia.org More Like This
Keywords: View looking into Black Canyon from rim of the Arizona wall showing operations in the early stages of the upper... - NARA - 293735.tif Scope and content Photograph from Volume Two of a series of photo albums documenting the construction of Hoover Dam Boulder City Nevada Full caption of photograph reads View looking into Black Canyon from rim of the Arizona wall showing operations in the early stages of the upper cofferdam construction Temporary cofferdam diverts river flow through Arizona side of channel Nevada side inside temporary cofferdam is partially unwatered and muck is being removed by dragline shovel and truck Upstream slope of cofferdam proper is indicated by white paint line on Nevada wall above truck road Temporary barrier will be dumped from bridge near which pile driver barge is anchored and will divert entire river flow through Diversion Tunnels Nos 2 3 and 4 during cofferdam construction First diversion will be through Tunnel No 4 during the latter week of October General notes 293735 Local identifier Department of the Interior Bureau of Reclamation Engineering and Research Center 05/18/1981 - 03/04/1988 NARA's Rocky Mountain Region Denver NRGA Building 48 Denver Federal Center West 6th Avenue and Kipling Street Denver CO 80225-0307 1932-10-03 Record group Record Group 115 Records of the Bureau of Reclamation 1889 - 2008 Record group ARC 444 Photograph albums compiled 1903 - 1972 Series ARC 293611 File unit File unit ARC Variant control numbers NAIL Control Number NRG-115-CONSTPHO85006-BC21391 yes Other versions <gallery> File View_looking_into_Black_Canyon_from_rim_of_the_Arizona_wall_showing_operations_in_the_early_stages_of_the_upper _-_NARA_-_293735 tif tif File View_looking_into_Black_Canyon_from_rim_of_the_Arizona_wall_showing_operations_in_the_early_stages_of_the_upper _-_NARA_-_293735 jpg jpg </gallery> NARA-cooperation PD-USGov NARA TIF images with categorized JPGs
Terms of Use   Search of the Day