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Construction of Hoover Dam intake towers Photo shows the site of the construction of the intake towers on the Nevada side of the dam. High scaling equipment, a crane, scaffolding, construction buildings and equipment are visible.
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Construction of Hoover Dam intake towers Shows site where the intake towers are being constructed on the Arizona side of Hoover Dam. Shows high scaling equipment and various structures including the boom derrick.
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Construction on the Nevada power house View of the Hoover Dam construction site, looking upstream on the Colorado River in Black Canyon. The partially finished dam face can be seen on the right, with concrete pouring forms and other construction equipment. Construction of the Nevada power...
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Construction on the Arizona power house View of the Hoover Dam construction site, looking upstream on the Colorado River in Black Canyon. The partially finished dam face can be seen on the left, with concrete pouring forms and other construction equipment. Construction of the Arizona power...
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Inside machinery room at Hoover Dam site This shows a room filled with machinery. There is a huge motor attached to the floor and there are large wheel turning valves shown on the right side of the photograph. In the background, the rear of the room appears...
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Construction on the Nevada power house View of construction on the Nevada power house. Framework and concrete pouring forms cover the site. Penstock tunnel openings are visible in the canyon wall in the background. Construction equipment, vehicles, temporary buildings and construction workers are seen on the...
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Aerial view of the Hoover Dam construction site looking upstream on the Colorado River Aerial view of the Hoover Dam construction site looking upstream on the Colorado River in Black Canyon. Construction on the power houses in the lower cofferdam is seen in the foreground. The roof of a temporary building is seen in...
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Looking downstream on the Hoover Dam construction site This view, taken from the Nevada side of the canyon, shows the lower cofferdam being excavated. Trucks, buildings, , and construction roads are visible. The Colorado River can be seen below the site. There is a temporary...
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View of the power house and valve houses from top of Hoover Dam View of the power house and valve houses from the top of the dam. Various buildings and structures can be seen as well as concrete forms. There are construction roads below the dam and a temporary bridge spans...
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View of Arizona spillway during construction A telephoto view of the Arizona spillway during the construction of Hoover Dam. Shows the bridge and control house. Trucks, various buildings, and some construcion workers are visible. Cables are overhead and construction roads snake up the...
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Hoover Dam, looking downstream View of Hoover Dam, looking downstream from the Arizona side. Several buildings and structures are visible as well as an observation point at the left. Shows the intake towers and also Lake Mead (Hoover Dam reservoir). The...
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Hoover Dam under construction Aerial view of the downstream side of Hoover Dam showing the intake towers and spillways. Construction equipment, buildings, and roads are visible. There are some cars on the road crossing the dam.
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Central section of the powerhouse Shows the floor level of the powerhouse under construction. The number 2 adit car is in the extreme background. Construction workers are also visible.
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Nevada powerhouse, showing the reinforcing and walls around the penstock openings Shows construction of the Nevada power house with reinforcing and the walls around the penstock openings. Also shows a pumpcrete machine in the butterfly valve gallery between the rock abutement and the turbine rooms.
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Pipe gallery of the Nevada power house Shows beams and concrete pouring forms in the pipe gallery of the Nevada power house under construction.
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Upper portal trashrack for diversion tunnel no. 1, on the Nevada side. Shows the concrete pouring forms for the upper portal trashrack for diversion tunnel no. 1 on the Nevada side.
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Looking upstream in Black Canyon, showing the downstream face of Boulder Dam. Aerial view of the dam under construction looking upstream from the Nevada side. Concrete pouring forms and scaffolding show along the face of the dam. Power houses under construction can be seen at the foot of the dam....
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View of lower portal during Hoover Dam construction Shows the cleanup of the Arizona side of the lower portals. Buildings and trucks are visible. The portal juts out from the side of the canyon.
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Construction view of the valve house and portal area of Hoover Dam Shows the Nevada construction adits, valve house and plug adit portal. Note the absence of the compressor plant. The beginning of the upstream of the lower portal road tunnel is visible. Buildings and structures, roads, and cables are...
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Looking upstream at Hoover Dam during construction An expansive view of the upstream face of Hoover Dam during construction. Various buildings and structures, workers, cars and equipment can be seen. Hoisting machinery and concrete pouring forms can be seen also.
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View from the top of Hoover Dam during construction View looking down from the top of Hoover Dam during construction. It shows the power houes, the valve houses and the lower cofferdam. Cars and trucks, buildings and structures, roads, and various equipment can be seen. A cable...
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Nevada intake towers, from the Arizona side. Shows the Nevada intake towers at Hoover Dam under construction. Hoisting equipment and cables are visible. At the left of the photo is the face of Hoover Dam. Some buildings and structures are visible at the base...
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Downstream view of Hoover Dam construction Shows a downstream view of the Hoover Dam project from the crest of the dam. Power house and lower portals of diversion tunnels are seen. Buildings and structures, trucks and roads are visible also.
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View taken from the side -- Hoover Dam construction Looking across Hoover Dam from the Arizona side, showing elevator and utility towers under construction. Buildings and structures are visible on the side of the canyon.
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Looking downstream at Hoover Dam under construction View of Hoover Dam during construction. The view was taken from high above, looking downstream, and shows the intake towers, roads, buildings and structures, a cable across the dam, and the reservoir (later known as Lake Mead).
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View of spillway during construction of Hoover Dam Taken from high up, this photo shows the Arizona spillway, highway bridge, and Arizona highway. Mountains and roads can be seen in the background. Buildings, cables, and various types of construction equipment are shown.
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Valve house during Hoover Dam construction Shows the Nevada valve house during construction. It is built into the side of the canyon wall. Below it is the refrigeration plant. Cables, a truck, buildings, and scaffolding can be seen.
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Boulder Dam, Hoover Dam looking upstream from the Nevada side. Upstream view of the dam showing the downstream face with multiple catwalks across it. Foreground shows the lower cofferdam with the power houses under construction and a headquarters building. To the right are unfinished Arizona intake towers and...
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View of power house from above -- Hoover Dam site Shows the power house and valve houses in a photo taken from the top of Hoover Dam. Buildings and concrete pouring forms are visible.
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Workers in transport buses This view shows the swing shift ready to leave from Dormitory No. 2 in Boulder City. Shows the dormitory and transport buses loaded with construction workers.
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Sedimentation tank for Six Companies gravel plant. Construction of sedimentation tank in the desert for gravel plant.
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Construction crew at bottom of Boulder Canyon Construction crew busy making forms at the bottom of Black (not Boulder) Canyon. There are tracks leading into the water that is in the canyon and there is a couple of carts sitting on the tracks. Several of the...
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Boulder pack train, tourist concession on the Colorado River near Black Canyon Tent with signs "pack train", "post cards", and "curios" on the canvas sitting on a platform. There is another smaller tent to the left of the main tent, three benches in front of the main tent, an American flag on...
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Hoover Dam -- valve outlet on the Arizona side View from the top of Hoover Dam showing water streaming from the outlet works in the valve house on the Arizona side. Also shows the Colorado River, the valve house on the Nevada side, and the tops of the Arizona...
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Hoover Dam -- valve outlet in operation on the Arizona side View from the top of the dam showing water streaming from the outlet works of the valve house on the Arizona side. Also shows the Colorado River, the valve house on the Nevada side, the tops of the Arizona and...
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Hoover dam -- water flowing from valve outlets Shows water flowing from the outlet works of both the Nevada and Arizona valve houses. Also shows the roofs of the power houses on both sides of the river, the Colorado River, and a road along the river.
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Hoover Dam -- looking downstream showing the valve outlets Water pours from the outlet works on the Nevada valve house. Also shows the Nevada valve house, the tops of the power houses on the Nevada and Arizona sides, the Colorado River, and a road by the side of the...
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Hoover Dam -- valve outlets in operation on the Arizona side Water pours from one of the outlets in the valve house on the Arizona side. Workers walk along a walkway by the Nevada power house or stand and look at the water. There is a mountain in the background.
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Hoover dam -- valve outlets in operation on the Arizona side View from outside the Nevada power house of water pouring from the outlet works of the Arizona valve house. Also shows the Arizona power house and a mountain in the background.
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Interior of Six companies, Inc. machine shop Shows men working on heavy machines in a Six companies, Inc. machine shop.
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Hoover Dam -- valve outlets in operation on the Nevada side Water streams form the outlet works of the Nevada valve house. Men stand near a wall by the Nevada power house and watch the water. The Arizona power house is also visible. There is a mountain in the background.
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Close-up of sand classifier in the gravel plant. The photograph is a close-up view of the sand classifier machinery in the gravel plant. Two employees are observing.
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Sand classifer in gravel plant producing sand for storage Two workers are monitoring the rake type sand classifier in the gravel plant. This machinery produced finished sand for storage and the stored gravel can be seen in the background.
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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 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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Concrete mixing plant in Black Canyon This picture shows a concrete mixing plant on the river bank at the Hoover Dam construction site in Black Canyon. It was taken with a telephoto lens.
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Aerial view of the Hoover Dam area Aerial view of Hoover Dam taken from the Arizona side. The Arizona spillway, intake towers, and reservoir (Lake Mead) are visible. Shows two buildings at the upper left of the photo. Mountains and road in the area...
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Portals, Hoover Dam construction "Shows men placing dynamite to flood entrance blocks away from #3 and #4 Arizona side."(inscription on back of photo) The portals to the diversion tunnels are visible. The Colorado River is shown below the portals and buildings and trucks...
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Construction -- near Hoover Dam Shows construction buildings, roads, and trucks in the mountains near the Hoover Dam site.
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Upper portals -- Hoover Dam site Handwritten inscription on back of photo: "View at upper portals showing narrowed channel just prior to diversion". Construction roads, equipment, and workers are visible. Some buildings and trucks are also in the picture.
 

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