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301 Object thumbnail
Construction on the power houses viewed from the valve house catwalk View of construction on the Nevada and Arizona power houses, taken from the valve house catwalk in the lower cofferdam. The dam face is seen in the background. Concrete pouring forms are visible on the power houses. Temporary buildings, construction...
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Panorama view, showing Six Companies Inc. work on the Arizona side of Black Canyon Highway. Panoramic view of construction work on the Arizona side of the Black Canyon Highway. Construction workers, dump trucks, electric draglines, temporary buidlings and an automobile are seen in the vastness of the desert mountains.
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Close-up of construction on the Arizona valve house Close-up of construction on the Arizona valve house. Concrete pouring forms cover the top of the structure. Lumber is seen lying in the unfinished portals.
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Close-up of construction on the Nevada valve house Close-up of construction on the Nevada valve house. Scaffolding and temporary stairways are seen outside the structure. Lumber lies inside unfinished portals.
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Close-up of construction on the Nevada power house Close-up of construction on the Nevada power house. Concrete pouring forms and other construction equipment are seen around the structure. An electric dragline is seen on top of the pouring forms.
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Close-up of construction on the central section of the power house Close-up of construction on the central section and a portion of the Nevada side of the power house, directly below the dam face. Concrete pouring forms and other construction equipment are seen around the structures.
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Construction on Hoover Dam and the power houses looking upstream from the lower portals road View of the Hoover Dam construction site in Black Canyon, showing the nearly-completed dam face and construction on the power houses in the lower cofferdam. Concrete pouring forms are seen on the tops of the power houses. Temporary buildings...
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View from the top of Hoover Dam of construction on the power houses View from the top of Hoover Dam of construction on the power houses in the lower cofferdam. Construction on the Arizona power house in the wall of Black Canyon can also be seen in the upper left. Temporary buildings and...
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Hoover Dam construction site, looking upstream from the lower portals road View of the Hoover Dam construction site in Black Canyon, showing the nearly-completed dam face and construction on the power houses in the lower cofferdam. Concrete pouring forms are seen on the tops of the power houses. Temporary buildings,...
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View of the Hoover Dam construction site looking downstream on the Colorado River View of the Hoover Dam construction site looking downstream on the Colorado River in Black Canyon. The nearly-completed dam face, intake towers and spillways are seen. Cableways run over the canyon above the dam face and remaining construction equipment is...
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Construction on the roadway on top of Hoover Dam View of construction of the roadway on the top of Hoover Dam. The Arizona intake towers and spillway are seen at the top of the picture. Construction workers and concrete pouring forms are seen at the top of the dam...
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Looking upstream toward the Nevada intake towers, showing the intake bridge girders in place. View of construction on the Nevada intake towers and a portion of the roadway on the top of the dam face. Construction workers and concrete pouring forms are seen on the top of the dam face on the right. One...
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Construction on the Nevada power house Construction on the Nevada power house. Concrete pouring forms are seen on top of the structure's foundation. A portion of the dam face is seen in the background. Temporary buildings, motor vehicles, electric draglines and construction equipment are seen on...
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Construction on the Arizona power house Construction on the Arizona power house. A portion of the dam face is seen in the upper left. A construction worker stands on a dump truck in front of the power house and another worker is seen sitting on part...
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Construction on Hoover Dam and the power houses looking upstream from the lower portals road View of the Hoover Dam construction site in Black Canyon, showing the nearly-completed dam face and construction on the power houses in the lower cofferdam. Concrete pouring forms are seen on the tops of the power houses. Temporary buildings, construction...
316 Object thumbnail
Construction on the power houses and valve houses viewed from the top of Hoover Dam View from the top of Hoover Dam of construction on the power houses in the lower cofferdam and on the valve houses in the walls of Black Canyon. Temporary buildings and construction equipment are seen on the cofferdam floor. Roof...
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Aerial view of Hoover Dam, looking downstream from the Arizona side of Black Canyon Aerial view of the Hoover Dam, nearing completion, in Black Canyon. Visible are the dam face, intake towers and spillways, and the Nevada valve house is seen in the middle left. The Colorado River is seen upstream of the dam....
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Aerial view of Hoover Dam, looking upstream on the Colorado River Aerial view of the Hoover Dam construction site in Black Canyon. Visible are the spillways, intake towers, dam face, diversion tunnels and construction on the power houses. Temporary buildings are seen in the cofferdam downstream of the dam face. The...
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Looking downstream from the Arizona side of Black Canyon, showing the reservoir level at the... View of the Hoover Dam site looking downstream from the Arizona side of Black Canyon, showing the reservoir level (Lake Mead) at the base of the intake towers.
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Looking upstream toward no. 1 upstream plug, showing approximately 7,100 second feet of water being... View of water being discharged into the no. 1 diversion tunnel. A series of bundled pipes is visible on the right side of the tunnel wall.
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No. 5 intake tower finished to elevation 1232, showing curtain wall Shows construction on two of the intake towers. A construction worker is standing on the intake tower nearest the camera. Consturction with concrete pouring forms on the top of the dam is also visible as is construction equipment such...
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Looking upstream at the upper end of no. 1 plug, showing forms for the intake... Rebar inside a diversion tunnel under construction. A blurry image of two construction workers is at the top of the picture.
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Telephoto view looking downstream into the Arizona spillway, showing the construction of the spillway bridge Shows construction taking place on the bridge of the Arizona spillway. Construction materials, construction equipment such as a power shovel, a temporary building and stairways, and the ropes for high scaling are visible.
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Looking upstream into no. 1 plug, showing the placing of the high pressure valves and... Placing of the high pressure valves in one of the diversion tunnels. There are two construction workers in the picture, and the tunnel is illuminated with electric lights.
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Form work on the Nevada valve house bench Concrete pouring forms being put in place for construction of the Nevada valve house. Ropes for high scaling and temporary buildings are also visible.
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Arizona valve house from the center of the low cat walk Concrete pouring forms being put in place for the construction of the Arizona valve house. A construction worker, a hook hanging from a crane, ropes for high scaling, and a ladder attached to the side of the cliff are visible.
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Telephoto view of Nevada powerhouse units Concrete pouring forms are being put into place for the construction of the Nevada power house. Construction materials, construction equipment, temporary buildings, and ropes for high scaling are visible.
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Telephoto view of Arizona powerhouse units Concrete pouring forms are being put in place as part of the construction of the Arizona power house. Construction materials and workers are visible.
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Hoover Dam, looking upstream Construction has started on the three powerhouses, and constuction is still going on on the intake towers and the top of the dam. Cableways are visible above the top of the dam. Temporary buildings are visible at the...
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Upstream face of Hoover Dam, looking downstream from the upstream cofferdam Upstream face of Hoover Dam when construction was still going on on the top of the dam and on the intake towers. The Arizona intake tower is on the left and the Nevada intake tower is on the right....
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Looking across the downstream face of Hoover Dam, showing the utility towers and elevator shaft Shows construction with concrete pouring forms going on on the top of Hoover Dam. There is a blurred image of a construction worker in the upper right corner, and a cableway with some sort of bucket is above the dam....
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Upstream face of Hoover Dam, and the Arizona intake towers Shows construction taking place on the Arizona intake towers and on the top of the dam. Catwalks, temporary buildings, the Colorado River, and construction equipment including derrick cranes are visible.
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Upstream face of Hoover Dam, and the Nevada intake towers Shows construction on the two Nevada intake towers. Also shows part of the upstream face of Hoover Dam with construction going on on the top of the dam. A cableway, construction equipment such as derrick cranes, and tunnel...
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Colorado River question : shall natural resources create local or enlarge distant development? Pamphlet discussing whether or not Hoover Dam should be built and the allocation of Colorado River water and of the power that the dam would produce. Contains several maps.
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Water from the Colorado River 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 and maps.
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Endorsement of House Bill 11449 (similar to Senate Bill 3511), Congress of the United States... Discussion of a Congressional bill to build Boulder Canyon Dam (Hoover Dam) and the All-American Canal to bring water from the Colorado River to the Imperial and Coachella Valleys in southern California. Includes illustrations and map. From the Francis P....
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Boulder Canyon dam : the essence of the Swing-Johnson Bill ; Boulder Dam : from... Discussion of the proposals in Congress to create Boulder (Hoover) Dam. Includes maps and illustrations.
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Colorado River Boulder Canyon Project and the All-American Canal Arguments for and against the building of the Boulder Canyon Dam. Inlcudes map of the proposed area for the development in the U.S. southwest.
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How Boulder Dam power will refinance Colorado River Project : statement to Congressional Colorado River... Primarly charts and tables showing how the building of Boulder Dam will pay for itself in power usage in Southern California. Predicts on population growth in the area. Includes a letter from the publisher of the Los Angeles Examiner.
 

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