Keywords: Looking down onto downstream rock backwash barrier. Construction road operates against Arizona abutment. - NARA - 293797.jpg Scope and content Photograph from Volume Two of a series of photo albums documenting the construction of Hoover Dam Boulder City Nevada General notes 293797 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 1933-02-10 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-BC21525 Other versions <gallery> File Looking down onto downstream rock backwash barrier Construction road operates against Arizona abutment - NARA - 293797 tiff tif File Looking down onto downstream rock backwash barrier Construction road operates against Arizona abutment - NARA - 293797 jpg jpg </gallery> NARA-cooperation PD-USGov Construction of the Hoover Dam |