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| View Original: | "Sidewall_tunnel_forms_being_utilized_in_forming_bulkhead_gate_structure_at_inlet_portal_of_Diversion_Tunnel_No._1."_-_NARA_-_293738.tif (3000x2101) | |||
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| Keywords: "Sidewall tunnel forms being utilized in forming bulkhead gate structure at inlet portal of Diversion Tunnel No. 1." - NARA - 293738.tif Scope and content Photograph from Volume Two of a series of photo albums documenting the construction of Hoover Dam Boulder City Nevada General notes 293738 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 1932-10-05 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-BC21395 yes Other versions <gallery> File Sidewall_tunnel_forms_being_utilized_in_forming_bulkhead_gate_structure_at_inlet_portal_of_Diversion_Tunnel_No _1 _-_NARA_-_293738 tif tif File Sidewall_tunnel_forms_being_utilized_in_forming_bulkhead_gate_structure_at_inlet_portal_of_Diversion_Tunnel_No _1 _-_NARA_-_293738 jpg jpg </gallery> NARA-cooperation PD-USGov NARA TIF images with categorized JPGs | ||||