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Construction of Hoover Dam View of construction on the canyon floor of Black Canyon. Trucks and roads are visible. Some buildings can be seen also. The concrete pouring forms and a cofferdam are also visible.
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Aerial view of the future site of Hoover Dam Shows Black Canyon and the Colorado River where Hoover Dam was later constructed. Some roads and railroad tracks are visible, as well as a small building.
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Hoover Dam construction site Shows Black Canyon and the Colorado River at the site of the construction of Hoover Dam. Some roads and railroad tracks are visible as well as buildings. Shown also are railroad cars and a temporary suspension bridge.
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View of Hoover Dam construction, early stage An aerial view of the Colorado River and Black Canyon during the early stages of Hoover Dam construction. The photo was taken from near the top of the dam site, on the Nevada site. It shows a building,...
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Power substation during Hoover Dam construction View of a substation used to power Hoover Dam construction activities. Also shown are buildings and roads winding up into the mountains.
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Low level concrete mixing plant seen from the Arizona side of the Colorado River View taken from the cliffs on the Arizona side of the Colorado River of the low level concrete mixing plant. Roads and buildings are seen near the river bank on the Nevada side.
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Hoover Dam construction View of the construction of Hoover Dam, looking upstream. Shows concrete forms, high scaling equipment, construction roads, and a train winding along the side of the canyon. The Colorado River is visible above the construction site; various...
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Hoover Dam during construction Construction photo of Hoover Dam. Shows a train winding along the canyon, concrete forms, buildings and structures above the dam, construction roads, high scaling equipment and a cable suspended over the canyon. The Colorado River is visible above...
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Arizona spillway during construction of Hoover Dam Close-up of the Arizona spillway during construction. Roads and buildings are visible.
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Hoover Dam construction View of the Hoover Dam construction site from high above the canyon. The Colorado River is visible above the dam site. A cable spans the canyon, there is a train winding along the canyon wall, and construction roads...
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Construction of diversion tunnels -- Hoover Dam site View of construction taking place at the upper portals of the diversion tunnels for Hoover Dam. Power shovel, buildings, roads, and scaffolding can be seen. Only the exterior portions of the tunnels are visible.
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Construction view of Hoover Dam, looking downstream A view, looking downstream, of the spillways and intake towers during the construction of the dam. Temporary bridges and cables with trams span the canyon. Various buildings, a trestle, and construction roads can also be seen.
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Hoover Dam during construction, looking downstream Shows Hoover Dam during construction, looking downstream. The intake towers are nearly finished. Shows dome on one of the intake towers. Roads, buildings and structures, railroad trestles and cableways are visible.
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Hoover Dam switchyard during construction Shows the Hoover Dam switchyard during construction and excavation. Buildings, roads, and building materials are visible. Trucks and a power shovel are also shown.
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Spillway and Hoover Dam during construction Shows the Nevada spillway and the face of the dam in the background. Cars are visible on the road across the top of the dam. Some of the intake towers are also visible. Construction equipment, buildings, and...
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View of switchyard during construction of Hoover Dam Shows the switchyard, rigging loft, and surrounding area near Hoover Dam. The mountains are in the background and roads, buildings, and construction equipment are visible.
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Hoover Dam during construction View looking upstream of the dam and power house. Cables with trams and temporary bridges span the canyon. Trucks, roads, buildings and construction equipment can be seen.
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Power house during construction -- Hoover Dam View of the power house from the top of Hoover Dam, looking down. The valve houses are visible on the sides of the canyon. Roads, trucks, buildings, and the concrete pouring forms can also be seen.
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Hoover Dam during construction Upstream view of Hoover Dam construction. Buildings, trucks, and roads are visible. Trams are crossing the canyon on a cableway suspended above the dam.
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View of construction on roads around the Arizona spillway View of construction on roads around the completed Arizona spillway, looking downstream on the Colorado River in Black Canyon. Curbs and guard rails are being installed. A dragline, two dump trucks and a temporary building are seen near the spillway....
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Road tunnel portal View of the Nevada side of the Hoover Dam construction site, showing a road tunnel portal in the wall of Black Canyon on the left. The dam face and construction on the Nevada power house can be seen in the...
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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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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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Colorado River -- Hoover Dam site View looking down at the Colorado River in Black Canyon, the future site of Hoover Dam. Roads and buildings can be seen on the banks above the river and some construction equipment is visible.
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Hoover Dam construction "Down stream from Observation Point. Buildings on the right side are water sedimentation plants. Water treated for Boulder City. Left side is Arizona side of River." [hand-written inscription on back of photo] This photo was taken high...
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Colorado River, early stages of dam construction View of The Colorado River and the construction roads on the sides of the canyons and mountains. Taken from very high above. Some buildings and structures are also visible.
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Hoover Dam construction Shows a general view of dam construction. Cables, buildings, and roads are visible. Concrete pouring forms can be seen at the bottom of the canyon. A portion of the Colorado River is also visible. The...
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Hoover Dam construction Handwritten inscription on back of photo: "Looking upstream into Black Canyon toward Boulder damsite after river had been diverted thru diversion tunnels Nos. 3 and 4. Temporary back-wash dike seen immediately upstream from tunnel out..." Portals to...
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Construction of Hoover Dam Construction photo showing the Colorado River with temporary suspension bridges, roads along the side of the canyon, trucks, and buildings.
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Aerial view -- Hoover Dam construction Aerial view of Hoover Dam, Black Canyon, and the Colordo River during the construction of the dam. Two portals of the diversion tunnels are visible. There are trucks and buildings on the cofferdam. The face of the...
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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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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 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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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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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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