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1076 - 1090 of 1090 Items << < 39 40 41 42 43 44
1076 - 1090 of 1090 Items << < 39 40 41 42 43 44
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"2996 Boulder Dam, looking upstream from Lookout Point. January 2nd, 1935
3015 Looking across top of Boulder Dam, toward the Arizona side, showing the start of the utility and elevator towers.
January 8th, 1935
3000 View taken from the...
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"2739 Arizona Intake Towers. June 21st, 1934.
2738 Nevada Intake Towers. June 21st, 1934.
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"3238 Telephoto view of the Arizona Valve House. April 25th, 1935.
3234 A 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...
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"2781 Looking upstream at Boulder Dam, from the Downstream Cofferdam. July 24th, 1934.
2764 View of the Nevada Powerhouse units from the Arizona retaining wall. July 20th, 1934.
2783 Nevada Powerhouse from the Arizona Valve House...
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"2936 Boulder Dam, looking upstream from Lookout Point. December 3rd, 1934.
2958 Third millionth cubic yard of concrete being lowered to Boulder Dam. December 5th, 1934.
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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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There are several planned alternatives for increasing the generation capacity of Hoover Dam to help meet peak power demands. These alternatives include: (a) uprating the existing generating units, (b) replacing or adding one or more generating...
1980-03-01
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