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Image Title Description Date
[Aerial view of the Colorado River showing diversion of the river into diversion tunnels no. 3 and 4]Lower Portals of Diversion Tunnels Nos. 3 and 4, after diversion of the Colorado River was completed.  Aerial view of the Colorado River in Black Canyon showing the diversion of the river into diversion tunnels no. 3 and 4.
 
1932-11-14
 
[Aerial view of the upper cofferdam on the Colorado River in Black Canyon]Upper Cofferdam, taken from Lookout Point.  Aerial view of the upper cofferdam on the Colorado River in the Hoover Dam construction site in Black Canyon. Cables are seen crossing the canyon, and a small wooden shack is seen on the cliff face in the foreground.
 
1932-11-29
 
[Concrete pouring forms in the Hoover Dam construction site in Black Canyon]Hoover Dam.  Aerial view of the Hoover Dam construction site in Black Canyon showing multiple concrete pouring forms in front of a cofferdam. Draglines and trucks can be seen on the canyon floor, and overhead cableways carry cargo across the site.
 
1933-06-27
 
Cut-off trench at upstream side of Hoover Dam.  Construction workers and equipment are seen in a cut-off trench in the upstream side of the Hoover Dam construction site.
 
1933-06-23
 
[Concrete pouring forms below a cofferdam in the Hoover Dam construction site]Hoover Dam.  Construction workers are seen working on the concrete pouring forms below a cofferdam in the Hoover Dam construction site. Concrete begins to set in the forms. A dragline can be seen in the distance and lines for high scalers are seen on the cliff wall on the right side.
 
1933-06-27
 
Nevada Spillway, looking upstream.  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 wall. Numerous steel rods protrude from the unfinished...
 
1933-06-27
 
[Colorado River flowing into diversion tunnels in Black Canyon]Lower portals of Diversion Tunnels, discharging 73,000 cubic feet per second flow into Colorado River.  The Colorado River flows out of the diversion tunnels in the Hoover Dam construction site in Black Canyon. Bridges are seen crossing the river and the canyon.
 
1933-06-16
 
Arizona Spillway, looking upstream.  View of construction of the Arizona Spillway in the Hoover Dam construction site. Concrete pouring forms and steel rods protruding from the unfinished spillway walls are seen around the partially finished concrete walls. Dirt roads and temporary buildings can be seen in the background.
 
1933-06-27
 
Hoist House and Nevada Anchorage, Government Cableway.  Cables run through a tower in Black Canyon. Two men stand at the foot of the anchoring cables outside a hoisting mechanism building in the Hoover Dam construction site. Trucks and temporary buildings are seen outside the hoisting house.
 
1933-08-09
 
Trains on Elev. 720 Railroad Bench, hauling conrete to Hoover Dam.  Freight cars carrying buckets of concrete are seen on a temporary railway built onto the canyon wall at the Hoover Dam construction site. Concrete setting in pouring forms in the dam site and construction workers are seen below.
 
1933-08-12
 
[Aerial view of concrete pouring in the Hoover Dam construction site]Hoover Dam.  Aerial view of the Hoover Dam construction site in Black Canyon showing multiple concrete pouring forms. Various trucks and vehicles are seen on the canyon floor and a temporary railway bench is seen on the cliff wall on the left side. The Colorado River can be seen in the distance behind a...
 
1933-08-15
 
[Concrete pouring forms in the Hoover Dam construction site]Hoover Dam.  View of multiple concrete pouring forms in the Hoover Dam construction site in Black Canyon. A concrete pouring bucket is suspended over the site by a cableway. A temporary railway bench is seen in the canyon wall in the upper left. Vehicles can be seen on the canyon floor and temporary...
 
1933-07-26
 
Looking upstream at the Arizona Spillway.  View of construction of the Arizona spillway. Concrete pouring forms are attached to the partially finished concrete walls. A dirt road and temporary buildings can be seen in the background.
 
1933-07-22
 
Looking upstream at the Nevada Spillway.  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 suspend construction equipment over the spillway.
 
1933-07-22
 
[Government cableway and hoisting house]150-ton government cableway, completed and in operation.  Photo shows tower and cableway, a hoisting house, and several other structures and some vehicles. There are mountains and rocks in the scene.
 
1933-09-19
 
[Concrete plant]Blending plant, recently placed in operation, at the Himix Concrete Plant.  Shows the blending plant on the side of Black Canyon; it is part of the Himix Concrete Plant.
 
1933-08-19
 
[Hoover Dam cooling tower and refrigeration plant during construction]Hoover Dam, cooling tower and refrigeration plant, looking downstream.  View of Hoover Dam during construction, looking downstream. The cooling tower and refrigeration plant are visible; also shows concrete forms, high scaling equipment, and various consruction materials and trucks. There is a man in the lower left-hand corner of the photo.
 
1933-09-14
 
[Nevada spillway during construction of Hoover Dam]Nevada spillway weir, showing forms for downstream abutment.  Photo shows men working on the Nevada spillway weir. There are concrete forms, various buildings, construction equipment, and a truck in the scene.
 
1933-09-15
 
[Hoover Dam construction]Hoover Dam, looking upstream. Railroad at elevation 720 shown at left.  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 buildings and structures, and a cable extending...
 
1933-08-22
 
[Hoover Dam during construction]Hoover Dam, looking upstream. Railroad at elevation 720 shown at left.  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 the dam site.
 
1933-08-31
 
[Hoover Dam construction--cooling tower and refrigeration plant]Telephoto view of Boulder Dam, cooling tower and refrigeration plant, looking downstream.  Shows close-up of Hoover Dam cooling tower and refrigeration plant during construction. Photo was taken looking downstream. Buildings and structures and cables are in the photo.
 
1933-09-14
 
[Arizona spillway during construction of Hoover Dam]Arizona spillway, looking upstream.  Close-up of the Arizona spillway during construction. Roads and buildings are visible.
 
1933-10-07
 
[Nevada spillway during construction of Hoover Dam]Nevada spillway, looking upstream.  Close-up of the Nevada spillway, looking downstream, during the construction of Hoover Dam. Cables, construction equipment, and roads are visible.
 
1933-10-07
 
[Interior of spillway tunnel, Hoover Dam site]Concreting equipment in No. 1 inclined spillway tunnel.  Shows concreting equipment inside No. 1 spillway tunnel during the construction of Hoover Dam.
 
1933-10-07
 
[Hoover Dam during construction]Boulder Dam, looking upstream.  View of Hoover Dam site, looking upstream. A railroad winds along the canyon and the Colorado River is visible above the dam site. Buildings and structures, high scaling equipment, and concrete forms are also visible.
 
1933-09-30
 
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