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176 - 200 of 1090 Items << < 3 4 5 6 7 8 9 10 11 12 > >>
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This aerial photo shows various parts of the dam under construction. Cableways, an overhead tram, various buildings and structures, railroad tracks, trestles, and concrete forms are visible. Also shows the Arizona spillway, Arizona intake...
1934-04-17
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Aerial view looking over the top of construction on the face of Hoover Dam. Construction workers can be seen amid concrete pouring forms and other construction equipment. A railroad bench for transportation of concrete can be seen in the lower...
1934-02-20
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Construction workers are seen above concrete pouring forms and scaffolding during construction of the Arizona spillway in Hoover Dam. An electric dragline can be partially seen in the upper left.
1934-02-20
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Aerial view of the Hoover Dam construction site. Construction workers are seen amid concrete pouring forms and other construction equipment. Temporary stairs are attached to the wall of Black Canyon, and a railroad bench used for transportation of...
1933-12-27
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View of construction on the upstream face of Hoover Dam. Construction equipment, scaffolding and concrete pouring forms are seen on and around the dam wall. Temporary stairs are seen attached to the wall of Black Canyon on the upper right. An...
1934-01-24
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A close-up view of Hoover Dam construction. There is a railroad running along the canyon, concrete forms, a truck, and a building. Temporary stairways have been built into the canyon walls.
1933-11-30
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View of interior of diversion tunnel No. 3 during the construction of Hoover Dam.
1933-10-30
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This photograph shows blasting of a hillside at the Hoover Dam site.
2024-04-23
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Shows concreting equipment inside No. 1 spillway tunnel during the construction of Hoover Dam.
1933-10-07
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View of construction of the Nevada Spillway in the Hoover Dam construction site in Black Canyon. Concrete pouring forms and steel rods protruding from the unfinished spillway ways are seen around the finished parts of the concrete walls. Cables...
1933-07-22
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Construction of the Nevada Spillway in the Hoover Dam construction site. Concrete pouring forms are seen attached to the partially-finished concrete wall A dragline is seen at the site and one construction worker scales the finished concrete...
1933-06-27
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Shows construction crew and equipment at the Hoover Dam site. Power lines are also in the scene.
2024-04-23
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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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View of a power house on the Nevada side taken during the construction of Hoover Dam. Shows power penstock tunnels, scaffolding, construction equipment and trucks.
1934-07-20
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View of the Hoover Dam construction site, showing partial completion of the dam wall and early work on one of the intake towers. Scaffolding is seen on the cliff face, and a bucket of concrete is suspended by a crane over the dam. People can be...
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View of the construction of Hoover Dam, looking upstream. Shows concrete forms, various construction buildings, and high scaling equipment. Taken from high above, the Colorado River can be seen above the dam site.
1933-08-07
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View of construction on Hoover Dam from downstream on the Colorado River. Scaffolding and concrete pouring forms are seen on the dam wall and in the riverbed. Temporary buildings are seen in the foreground.
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Construction inside diversion tunnel no. 4. Steel beams rigged with electric lights frame the tunnel walls and ceiling. A construction truck and workers are seen on the tunnel floor. Two workers are in the foreground.
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Construction workers are pouring the first concrete for the foundation of Hoover Dam in the bottom of Black Canyon. Large bucket suspended from a crane is visible as well as the concrete frames for the pour.
1933-06-06
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Shows construction workers on the trimming jumbo which was used to scale the walls of the diversion tunnels and remove projecting rock. The tunnel is at the Hoover Dam construction site.
1932-04-12
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Aerial view of the Colorado River flowing through Black Canyon during early construction at the Hoover Dam site. A dirt road runs alongside the river and catwalks are suspended over the river.
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Aerial view of Hoover Dam showing the upstream face of the dam, one of the spillways and two of the intake towers in Lake Mead (the reservoir). The wing of the plane taking the photographs is visible in the lower portion of the photo.
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Aerial view of Hoover Dam and the surrounding area showing the upstream face of the dam, the intake towers, and the Arizona spillways. Lake Mead (the reservoir) is visible as is a portion of the airplane taking the aerial photos.
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Shows the downstream face of Hoover Dam. The powerhouses and tops of the intake towers can be seen.
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