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26 - 50 of 251 Items << < 1 2 3 4 5 6 7 8 9 10 > >>
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"2541 General view of Nevada Intake Towers from Arizona side, showing Lomix trestle below. February 20th, 1934.
2540 General view of Arizona Intake Towers and Spillway from Nevada Himix trestle. February 20th, 1934."
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"2581 Foundation forms for the Arizona Power House, taken from the Nevada Valve House Bench. March 16th, 1934
2617 Telephoto view of foundation forms for the Arizona Power House, taken from Lookout Point. April 1st, 1934.
2599 Forms for...
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"2437 Upper Portals of the Diversion Tunnels. The dyke being built is at Elevation 690, which is the elevation of the top of the
Tunnels. November 30th, 1933.
2444 Himix Plant. Note the new type of 8 cu. yd. bucket on the car, and the two...
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"2058 Placing concrete in the weir section of the Nevada Spillway. March 27th, 1933.
2073 Himix Concrete Plant and Government Cableway structures, taken from the Arizona side. April 1st, 1933.
2076 Looking downstream into open cut of the...
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"2057 Looking upstream in Black Canyon, showing excavation for Hoover Dam site. March 27th, 1933.
2092 Close-up of excavation in bed of the Colorado River, below Elevation 300. View taken looking upstream.
April 3rd, 1933.
2083...
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"2336 150-ton Government Cableway, completed and in operation. August 19th, 1933.
2326 Blending Plant, recently placed in operation, at the Himix Concrete Plant. August 18th, 1933. -
2349 Hoover Dam, Cooling Tower and Refrigeration Plant,...
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"21519 Closeup of Drilling Operations in Arizona Inclined Spillway Tunnel. August 29th, 1932.
1605 Upper end of Arizona Inclined Spillway Tunnel. September 17th, 1932.
1518 Closeup of Portal of Arizona Inclined Spillway Tunnel leading down...
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"1319 The danger of high water having passed for 1932, the concrete arch coffer dams are being blasted out of the lower portals of diversion tunnels. View shows Diversion Tunnel No. 2 July 15th, 1932.
1337 A protecting dike of rock is left...
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"1650, 1651 and 1652 These pictures together form a panoramic view of operations on the Nevada rim of the Canyon.
September 30th, 1932.
1657, 1658 and 1659 These pictures taken together form a panoramic view of operations on the Arizona rim...
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A booklet which describes the importance of water and hydroelectric power for the development of Southern California. The booklet provides information on the history of the area, the Colorado River Aqueduct, and the Boulder Canyon project.
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Correspondence between Delph Carpenter and senators and congressmen, primarily Colorado Senator Lawrence C. Phipps and Nevada Senator Key Pittman, regarding the Colorado River Compact, the Swing-Johnson bill, and the Boulder (Hoover) Dam. A...
2007-01-02 2007-01-02 |
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"1279 Part of a panoramic view of the canyon rim operations, showing the highway which will cross the dam. The canyon is in the foreground. Note the men scaling the cliffs for the Nevada intake towers. June 21st, 1932.
1280 On this half of...
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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...
2024-05-05
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"A page of pictures taken during the sand storm that visited Boulder City on January 11th, 1933, when the wind is estimated to have attained a velocity in excess of sixty miles an hour.
# 475 workman collection, debris after the porch roof was...
2024-05-05
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"#252 Lower Portal No. 4 - Arizona Side -
3/4 full full heading started. Sept. 25, 1931.
#255 Six Companies' Shovel Operation, Lower Portal No. 4, Arizona Side -Sept. 28, 1931.
#256 Drill-Jumbo on truck for starting
Lower...
2024-05-05
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"# 560 Gravel screening plant under construction. View taken from the water clarifier tank. November 3rd, 1931.
# 640 Same as #560. December 1st, 1931.
# 562 Sixty-foot screening towers under construction. November 3rd, 1931.
# 636...
2024-05-05
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"#100 ""Hoover Dam Site"" from lower end of
canyon, looking upstream. Aug. 26, 1931.
#94 Looking up Canyon from point below all
Lower Portals - showing Government Water Plant, Sis Companies' Compressor Plant, location of all Lower...
2024-05-05
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"#72 - Compressor Plant No. 3 & Approach Cut, lower end Diversion Tunnels Nos. 1 & 2. Nevada Side. August 7, 1931.
#73 - Lower Portal, Diversion Tunnel #2 August 9. 1931.
#74 - Approach cut, Lower end of
Diversion Tunnel No. 1 & 2, Nevada...
2024-05-05
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"#56 - Lower Portal Diversion Tunnel #2 August 9, 1931.
#57 - Lower Portal, Diversion Tunnel #3 Arizona Side - Also Shops. August 9, 1931.
#58 - 6"" Air Line suspended from Compressor Plant No. 3 to Arizona Side. August 9th, 1931.
#59 -...
2024-05-05
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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....
2024-05-05
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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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