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701 Object thumbnail
Hoover Dam construction View of the upstream face of Hoover Dam during construction. The power houses are visible as are the tops of the intake towers. Cableways span the canyon high above the construction site.
702 Object thumbnail
Construction on crest of Hoover Dam View of the concrete work on the crest of Hoover Dam. Men and construction equipment are visible.
703 Object thumbnail
Water discharging from the Nevada and Arizona outlet works into the Colorado River View of water discharging from the Nevada and Arizona outlet works in the valve houses into the Colorado River downstream from Hoover Dam in Black Canyon. Diversion tunnel portals and a steel bridge are seen in the foreground. Two of...
704 Object thumbnail
View of water discharging from the Nevada and Arizona outlet works into the Colorado River View of Hoover Dam from downstream on the Colorado River. Water is being discharged from the Nevada and Arizona outlet works in the valve houses. The diversion tunnel portals and a steel bridge are seen in the foreground. Cables are...
705 Object thumbnail
Aerial view of Hoover Dam area Aerial view of the Hoover Dam and Lake Mead area with the mountains and Fortification Hill in the background.
706 Object thumbnail
Aerial view of Hoover Dam area Aerial view of Hoover Dam, the Colorado River, Lake Mead, and the surrounding mountains including Fortification Hill. The wing of the airplane in which the photographer was riding can be seen in the upper left corner of the photo.
707 Object thumbnail
Aerial view of Hoover Dam area Aerial view of Hoover Dam showing Lake Mead and the surrounding mountains. Fortification Hill is at the upper right.
708 Object thumbnail
Aerial view of Hoover Dam area Aerial view of Hoover Dam, Lake Mead, and the surrounding mountains. Transmission towers are visible on the mountains. The upstream face of the dam and the intake towers can be seen.
709 Object thumbnail
Aerial view of Hoover Dam Aerial view of Hoover Dam and the surrounding area. Part of the Colorado River, Lake Mead, and Fortification Hill are visible. The outlet works are open, spewing water. Several of the portals of the diversion tunnels can...
710 Object thumbnail
Aerial view of Hoover Dam area Aerial view of Hoover Dam, Lake Mead, and the surrounding mountains. The outlet works are spewing water. The Arizona power house is visibible. The wing of the airplane in which the photographer was riding can be seen in...
711 Object thumbnail
Aerial view of Hoover Dam Aerial view of Lake Mead, the Colorado River, Hoover Dam, and the mountains in the area. View is looking upsteam and the Nevada power house is visible.
712 Object thumbnail
Aerial view of Hoover Dam Aerial view of Hoover Dam looking downstream. Lake Mead, the Colorado River, and the crest of the dam are visible.
713 Object thumbnail
Hoover Dam construction Close-up view of the concrete construction work on the crest of the dam. Partially completed intake tower is visible at upper left. Arizona spillway is also visible.
714 Object thumbnail
Construction of Hoover Dam View of Hoover Dam under construction. A portal to a diversion tunnel is visible at lower left. The power houses can be seen as well as several buildings in the lower right of the photo on the cofferdam.
715 Object thumbnail
Hoover Dam under construction View of Hoover Dam during construction. The power houses are visible; concrete work is progressing on them. The intake towers are peeking above the dam's upstream face. Cables span the canyon and there is a...
716 Object thumbnail
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...
717 Object thumbnail
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.
718 Object thumbnail
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.
719 Object thumbnail
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.
720 Object thumbnail
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.
721 Object thumbnail
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.
722 Object thumbnail
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.
723 Object thumbnail
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.
724 Object thumbnail
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...
725 Object thumbnail
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....
726 Object thumbnail
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....
727 Object thumbnail
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.
728 Object thumbnail
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...
729 Object thumbnail
Hoover Dam construction site viewed from downstream View of the Hoover Dam construction site in Black Canyon from downstream. Framework and concrete pouring forms are visible on the Nevada power house on the left, the Arizona power house on the right and the central portion of the...
730 Object thumbnail
View of construction on the power houses View of construction on the power houses at the base of Hoover Dam. Construction on the Nevada and Arizona intake towers is also seen behind the dam face, where the Colorado River is held behind the upper cofferdam. Cables carrying...
731 Object thumbnail
Close-up of construction on the lower dam face Close-up of construction on the lower face of Hoover Dam. Scaffolding is visible on the dam face and concrete pouring forms are seen on the top of the dam face.
732 Object thumbnail
Close-up of construction on the dam face, showing cables overhead Close-up of construction on the downstream face of Hoover Dam, showing cables overhead. Construction on the tops of the Nevada and Arizona intake towers can be seen behind the dam face. Construction on the central portion of the power house...
733 Object thumbnail
Construction on the lower dam face, intake towers and power houses View of construction on the lower face of Hoover Dam. Framework and concrete pouring forms for the power houses are visible at the base of the dam face. Construction on the Nevada and Arizona intake towers is seen behind the...
734 Object thumbnail
Cement mixing plant at Hoover Dam construction site View of the Hoover Dam construction site from downstream on the Nevada side. Construction on the intake towers nears completion behind the dam face. Scaffolding is still present on the dam face and cables run overhead. Temporary buildings are...
735 Object thumbnail
Construction on the Hoover Dam power houses View of the Hoover Dam construction site from downstream in Black Canyon. The peaks of the intake towers are seen behind the dam face. Construction on the power houses is seen at the base of the dam face. Scaffolding is...
736 Object thumbnail
Close-up of the lower face of Hoover Dam showing construction on the central power house Close-up of the lower face of Hoover Dam showing construction on the central power house at the bottom. The top portions of the intake towers are seen behind the dam face. Scaffolding is present on the dam face.
737 Object thumbnail
Construction on the power houses viewed from downstream View of construction on the Hoover Dam power houses from downstream in Black Canyon. Scaffolding is still present on the lower dam face as it nears completion. The peaks of the Nevada and Arizona intake towers can be seen behind...
738 Object thumbnail
Completed downstream face of Hoover Dam, showing the power houses View of the completed downstream face of Hoover Dam. A portion of the power houses is seen at the base of the dam with the Colorado River between the Nevada and Arizona sides. Black Canyon is seen in the background.
739 Object thumbnail
Downstream face of Hoover Dam Shows the downstream face of Hoover Dam, the power houses, and the Colorado River waters below the powerhouses. Transmission towers are visible on the cliffs above.
740 Object thumbnail
Hoover Dam Expansive view of Hoover Dam showing the power houses, the waters of the Colorado River below the power houses, two of the portals to the diversion tunnels, transmission towers on the cliffs above, and a cable across the top...
741 Object thumbnail
Downstream face of Hoover Dam Shows downstream face of the dam, the power houses, the waters of the Colorado River below the power houses, and transmission towers on the cliffs above the dam.
742 Object thumbnail
Night view of Hoover Dam Night view of the downstream face of Hoover Dam. The power houses, the face of the dam, and the water are illuminated by electric lighting.
743 Object thumbnail
Downstream face of Hoover Dam Downstream view of the face of Hoover Dam and two of the power houses. Intake towers can be seen above the dam and the reservoir (Lake Mead) can be seen in the upper right of the photo. This...
744 Object thumbnail
Dowstream face -- Hoover Dam Photo taken from quite a distance down Black Canyon, showing the downstream face of the dam, the power houses, the Colorado River, and one of the portals of the diversion tunnels.
745 Object thumbnail
Hoover Dam and Lake Mead View taken from high above, showing the face of the dam, the power houses, some transmission towers, and the intake towers. Lake Mead is nearly filled and there are boats on the water.
746 Object thumbnail
Hoover Dam at night This postcard shows the downstream face of Hoover Dam at night. The intake towers and some transmission towers are visible, lit by electric lighting.
747 Object thumbnail
Night view of Hoover Dam Night view of the downstream face of Hoover Dam. Electric lighting illuminates the face of the dam, the intake towers, and some transmission towers.
748 Object thumbnail
Hoover Dam and Lake Mead Photo taken high above the dam, shows most of the downstream face, the highway across the crest of the dam with cars parked, the intake towers and road leading to the dam. Some transmission towers are visible and the...
749 Object thumbnail
Hoover Dam and Lake Mead View looking down on the downstream face of Hoover Dam from on high. The intake towers are visible and the reservoir (Lake Mead) is nearly filled. There is a boat on the lake and there are cars parked...
750 Object thumbnail
Hoover Dam and Lake Mead This postcard shows a view of Hoover Dam and the reservoir (Lake Mead) taken from high above the site. The downstream face of the dam is visible as are the intake towers. Lake Mead is beginning to fill....
 

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