Archival objects in this container: Lower portals of diversion tunnels discharging 73,000 cubic feet per second flow into Colorado River: photographic print, 1935 June 16 Nevada construction adits, valve house, and plug adit portal. Note absence of upstream end of lower portal road tunnel: photographic print, 1935 August 21 Nevada intake towers derrick: photographic print, 1933 December 27 Nevada intake towers from the Arizona side: photographic print, 1934 March 24 Nevada intake towers, from the Arizona side: photographic print, 1934 May 29 Nevada intake towers: photographic print, 1934 June 21 Nevada powerhouse from the Arizona valve house bench: photographic print, 1934 July 24 Nevada powerhouse from the Arizona valve house bench: photographic print, 1934 September 27 Nevada powerhouse layout: photographic print, 1934 June 21 Nevada spillway, looking upstream: photographic print, 1934 January 24 Nevada valve house roof, looking upstream. Note low strength pedestals and double layer of railroad iron being placed: photographic print, 1935 August 27 Night photograph of Boulder Dam, from Lookout Point: photographic print On crest of Boulder Dam, looking toward the Nevada side, showing final pour in the slot, which practically completes the concrete in Boulder Dam: photographic print, 1935 May 29 Panorama looking downstream in Black Canyon, taken from the Nevada side, showing the upstream face of Boulder Dam, Arizona and Nevada spillways, intake towers, cableways and general construction: photographic print, 1934 May 12 Panorama view, showing Six Companies, Inc. work on the Arizona side of Black Canyon highway: photographic print, 1935 June 24 Panorama, looking upstream toward Boulder Dam reservoir, from Observation Point: photographic print, 1935 July 25 Placing concrete lining in Arizona upper penstock tunnel: photographic print, 1934 January 27 Switchyard, rigging loft, and surrounding area: photographic print, 1935 July 26 Telephoto looking downstream into the Arizona spillway, showing construction of the spillway bridge: photographic print, 1935 January 08 Telephoto view from the Arizona side, showing portion of the Nevada powerhouse: photographic print, 1935 May 27 Telephoto view from the Nevada side, showing some of the Arizona power house roof girders in position. Note the universal crane on top. The girder on the flat car has just been lowered by means of the government cableway: photographic print, 1935 April 25 Telephoto view looking downstream into the Nevada spillway. Note the spillway Control House being formed: photographic print, 1935 March 25 Telephoto view of Nevada powerhouse units: photographic print, 1934 December 19 Telephoto view of the Arizona valve house, from the Nevada side: photographic print, 1935 February 25 The Nevada intake towers, from the Arizona side: photographic print, 1935 February 25 Load More
