Archival objects in this container: Looking upstream at Boulder Dam, from the downstream cofferdam: photographic print, 1934 July 24 Looking upstream at Boulder Dam, from the power house floor: photographic print, 1935 February 25 Looking upstream in Arizona valve house. Note three gates and needle valves have been installed: photographic print, 1935 October 29 Looking upstream in Black Canyon, showing the downstream face of Boulder Dam: photographic print, 1934 April 30 Looking upstream in Nevada valve house. Note installation of needle valves and gates: photographic print, 1935 September 27 Looking upstream in Number 1 plug, showing the united portions of the arch and raise into the Nevada spillway: photographic print, 1934 November 17 Looking upstream through Black Canyon showing Boulder Dam under construction: photographic print, 1933 December 15 Looking upstream toward Boulder Dam and power house: photographic print, 1935 September 26 Looking upstream toward Boulder Dam and power house: photographic print, 1935 July 25 Looking upstream toward Boulder Dam and the power house, from lower portals road: photographic print, 1935 August 26 Looking upstream toward Boulder Dam and the power house: photographic print, 1935 July 25 Looking upstream toward Boulder Dam, from Lookout Point: photographic print, 1934 September 29 Looking upstream toward Boulder Dam, from the lower portals road. Note the downstream cofferdam excavation: photographic print, 1935 March 26 Looking upstream toward Nevada powerhouse, showing 18-foot penstock openings: photographic print, 1934 February 20 Looking upstream toward the Nevada intake towers, showing the intake bridge girders in place: photographic print, 1935 March 25 Nevada intake towers, from the Arizona side: photographic print, 1934 October 25 Nevada powerhouse, from the Arizona valve house bench: photographic print, 1934 May 29 Nevada powerhouse, from the downstream cofferdam: photographic print, 1935 January 28 Nevada spillway weir section: photographic print, 1934 January 24 Nevada spillway weir: photographic print, 1933 October 30 Nevada spillway, looking upstream: photographic print, 1933 June 27 Number 3 derrick in service at Boulder Dam: photographic print, 1934 January 24 Number 5 intake tower finished to elevation 1232, showing curtain wall: photographic print, 1934 December 05 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 Load More
