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1026 - 1050 of 1090 Items << < 37 38 39 40 41 42 43 44 > >>
1026 - 1050 of 1090 Items << < 37 38 39 40 41 42 43 44 > >>
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"#31-56 Secretary Wilbur Driving Silver Spike on Union Pacific Branch Line, Las Vegas to Boulder City, Sept. 17, 1930.
#32-227 Beginning work on Six Companies, Inc.
Railroad & Highway along Colorado River above Cape Horn - May 23, 1931....
2024-04-25
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"2286 Hoover Dam July 26th, 1933.
2277 Looking upstream at the Arizona Spillway July 22nd, 1933.
2278 Looking upstream at the Nevada Spillway July 22nd, 1933."
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"2568 Union Pacific ""Train of Tomorrow"" on the Lomix Trestle, at the upstream face of Boulder Dam, where the concrete is transferred from Lomix trains to the Dam. March 9th, 1934.
2589 View taken from No. 2 Arizona derrick, showing Nevada...
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"3025 Nevada Power House, from the downstream cofferdam. January 28th, 1935.
3026 Arizona Power House, from the downstream cofferdam. January 28th, 1935.
3059 Diversion Tunnel No. I Trashrack and counterweight assembly just prior to the diverting...
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"2228 Looking upstream at the Nevada Spillway. June 2nd, 1933.
2227 Looking upstream at the Arizona Spillway. June 2nd, 1933.
2236 Dumping first grout into Block J-3, Hoover Dam. June 6th, 1933"
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"2799 Arizona Intake Towers, from the Nevada side. Nevada Intake Tower No. 5 in forground, with upstream face of Boulder Dam shown to right. August 17th, 1934.
2814 Nevada Intake Towers, from the Arizona side. Upstream face of Boulder Dam...
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"2262 Hoover Dam. June 27th, 1933.
2256 Cut-off trench at upstream side of Hoover Dam. June 23rd, 1933.
2263 Hoover Dam. June 27th, 1933."
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"2468 Upstream face of Boulder Dam. December 27th, 1933.
2474 Downstream face of Boulder Dam. December 27th, 1933.
2466 Boulder Dam. View taken looking upstream. December 27th, 1933."
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"2667. Panorama, looking downstream in Black Canyon, taken from the Nevada side, showing the upstream face of 2668. Boulder Dam, Arizona and Nevada Spillways, Intake Towers, Cableways and general construction. May 12th, 1934.
2697. Arizona...
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"2528 Forms for transition at the Downstream Plug of Diversion Tunnel No. 2. Jauary 27th, 1934.
2507 Nevada Spillway Weir section. January 24th, 1934.
2506 Nevada Spillway, looking upstream. January 24th, 1934."
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"3319 Panorama view, showing Six Companies Inc. work on the Arizona side of Black Canyon Highway
3320 June 24th, 1935.
3327 Arizona Valve House, from the Nevada side. June 24th, 1935.
3328 Nevada Valve House, from the Arizona side. June...
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"2905 Central section of the Powerhouse, looking toward the Nevada side, showing the floor level. No. 2 adit car in the extreme background. October 30th, 1934.
2908 Nevada Powerhouse, showing the reinforcing and walls around the penstock...
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In 1931, Utah joined Six Companies Inc. to raise the surety required to bid for the Boulder (Hoover) Dam contract. One of the world’s largest dams, Hoover Dam was completed in 1936 at a cost of $49 million. These scrapbooks document through...
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In 1931, Utah joined Six Companies Inc. to raise the surety required to bid for the Boulder (Hoover) Dam contract. One of the world’s largest dams, Hoover Dam was completed in 1936 at a cost of $49 million. These scrapbooks document through...
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"2301 Hoist House and Nevada Anchorage, Government Cableway August 9th, 1933.
2310 Trains on Elev. 720 Railroad Bench, hauling concrete to Hoover Dam. August 12th, 1933.
2322 Hoover Dam August 15th, 1933."
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"1925 General view of Downstream Cofferdam and excavation m river bed for Power House, February 10th, 1933.
1996 View of the Himix Concrete Mixing Plant. February 28th, 1933.
1992 Looking downstream in Black Canyon from the upstream...
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"1413-1414 These pictures, together with the two on the opposite page, complete the panorama of the canyon rim operations on the Nevada side of the river. In the picture to the left is shown the open cut excavation for the Nevada spillway....
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"1674 Closeup of Bulkhead Gate at Upper Portal of Diversion Tunnel No. I. October 25th, 1932
1696 Part of shipment of Bulkhead Gate Structural Steel transported by special train from Los Angeles Plant of Consolidated Steel
Corporation....
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1506 A blast on the cableway bench excavation, on the Arizona side, above the damsite. Picture taken from lower portal of Railroad Tunnel No. 1. August 24th, 1932.
1507 Huge billows of rock and dust pour over the canyon rim and descend to...
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The ever-increasing demand for energy in the southwest has led to a search for additional sources of power generation. Coal-fired powerplants currently provide most of the baseline energy in the southwest, but this must be supplemented with...
1980-01-01
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A pamphlet printed October, 1928 for distribution at the Boulder Dam exhibit in the Southwest Exposition in Long Beach, California and for general distribution. The pamphlet provides information about the Boulder Canyon Dam, especially in how it...
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Overview of prime objects of legislation being considered by Congress for the government to construct the Boulder Dam.
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'Cartography by W. C. Kainsinger, W.T. Taylor. Field mapping by K. R. Reed, G. Boyd. Typography by W. R. Williams.' 'Copyright by Automobile Club of Southern California. C-21351.' 'C-1352'--Panel. Index on verso. In lower right corner: 'Map number...
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Discusses the Boulder Canyon Dam Project (Hoover Dam) and the plan to bring water from the Colorado River to the fifteen cities of the Metropolitan Water District of Southern California by means of the Metropolitan Aqueduct. Includes illustrations...
1931-07-01
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View of the downstream face of Hoover Dam. The intake towers and reservoir (Lake Mead) are seen above the dam. A cableway spans the dam with hoisting machinery suspended from it. Some of the transmission towers can be seen. Cars and people are...
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