Access Restricted Archival objects in this container: Businessmen and engineers affiliated with Hoover Dam: W. A. Bechtel, First Vice President, Six Companies, Inc.; Walker R. Young, Construction Engineer, Bureau of Reclamation; Elwood Mead, Commissioner, Bureau of Reclamation; F. T. Crowe, General Superintendent, Six Companies, Inc.; R. F. Walter, Chief Engineer, Bureau of Reclamation, 1931 July Employees from the Stenographic Office at the Bureau of Reclamation with the following printed description: Hannah Houn, stenographer; Cecile M. Dotson, mails and file clerk; Rose V. Crippa, stenographer, 1931 December 15 Fire fighters with the following printed description; government fire fighting equipment, Boulder City, and the driver of the truck is Robert Hewes in charge of fire detail, 1931 December 28 Aerial image of several high scalers at work at the Hoover Dam construction site in the location for the Arizona-side intake towers, 1932 August 15 President Herbert Hoover and official party in Tunnel No. 2 during inspection tour of Boulder Canyon Project: Construction Engineer W. R. Young, Bureau of Reclamation; Mr. Ritchey, Secretary to the President; Chief Engineer R. F. Walter, Bureau of Reclamation; Lou Henry Hoover; President Hoover; Marguerite Blake Wilbur; Secretary of the Interior R. L. Wilbur; E. O. Wattis, First Vice-President, Six Companies, Inc.; F. T. Crowe, General Superintendent, Six Companies, Inc., 1932 November 12 President Herbert Hoover and official party during an inspection tour of the Boulder Canyon Project, 1932 November 12 Group of men who witnessed the pouring of the first concrete in Hoover Dam: H. J. Lawler, Director of Six Companies, Inc.; Walker R. Young, Construction Engineer, U.S. Bureau of Reclamation; Frank T. Crowe, General Superintendent, Six Companies, Inc.; C. A. Shea, Director of Construction, Six Companies, Inc.; W. A. Bechtel, President, Six Companies, Inc.; R. F. Walter, Chief Engineer, U.S. Bureau of Reclamation; Theodore A. Walters, First Assistant Secretary of the Interior; and Ed Clark and C. P. Squires, members of the original Colorado River Commission, 1933 June 06 Boulder Canyon Dam "C" site, approximately 1931-1936 Fortification Hill as seen from the Nevada shore of Black Canyon Reservoir, 1935 February 26 Extension work on Nevada Spillway Tunnel no. 2 at Hoover Dam performed by Guy F. Atkinson Company of San Francisco, California, 1946 April 26 Hoover Dam looking upstream through Nevada spillway, overflow weir under construction at right, completed section of channel lining and parapet at left, 1933 August 29 Hoover Dam with a thirty-foot-diameter steel penstock pipe set up from joint assembly at the Babcock and Wilcox Co. Plant, 1933 February 10 Hoover Dam with during the placing of a concrete in block at mid-section of dam, 1933 July 18 Hoover Dam evaporation tower for dam precooling system located on downstream cofferdam, 1933 June 26 Hoover Dam upstream face of the dam as seen from portal of construction tunnel on Nevada side of Black Canyon, 1935 February 27 Hoover Dam, looking upstream in the Nevada turbine gallery, 1936 June 10 Hoover Dam Memorial Day crowds waiting to visit the power plant, 1937 May 30 Hoover Dam rotating field for the generator for Unit N5 under erection, 1937 June 24 Hoover Dam 50-foot diameter tunnel below Arizona Tunnel Plug outlet works, 1938 December 27 Hoover Dam bank of 287.5 KVV transformers along the ramp of the Arizona powerhouse, 1941 April Winged Figures of the Republic statue at Hoover Dam, approximately 1931-1936 Boat dock on Nevada side of Colorado River operated by permittees, 1935 March 14 Aerial view of Nelson's Landing prior to the September 14, 1974 flood that washed the boat landing into Lake Mohave, approximately 1970-1974 Aerial view of Nelson's Landing shortly after the September 14, 1974 flood that washed the boat landing into Lake Mohave, 1974 September Aerial view of Nelson's Landing shortly after the September 14, 1974 flood that washed the boat landing into Lake Mohave during salvage and recovery operations, 1974 September Load More