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View of construction on the downstream face of Hoover Dam in Black Canyon. Scaffolding, ladders, concrete pouring forms and other construction equipment are seen at the site.
1933-12-27
View from donwstream on the Arizona side of the Colorado River of concrete pouring construction on Hoover Dam. Construction workers are seen amid multiple concrete pouring forms and scaffolding. A suspended concrete pouring bucket is seen in the...
1934-01-24
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 are visible. Some buildings...
1933-11-07
Two construction workers stand at what appears to be an entrance to a tunnel in Black (not Boulder) Canyon. Cables are visible above the men.
2020-11-27
A view of the Colorado River flowing through Black Canyon. In the forground are construction workers standing on a wooden trestle that is built along side the canyon wall. The workers appear to be dumping dirt from the trestle into the river....
2020-11-27
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. Includes the caption, "Telephoto view of Boulder Dam, cooling tower...
1933-09-14
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...
1933-08-15
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
Shows construction equipment, a boat, and various structures. Location is a rocky outcrop in Black Canyon (not Boulder Canyon) on the bank of the Colorado River.
2020-11-27
View of construction on the highways which will cross the top of the dam in Black Canyon. A rubble stone masonry retaining wall is in place.
1932-03-02
A stranded gas-air shovel is seen standing in the flooding of the Colorado River riverbed during construction on Hoover Dam. The mouth of one of the diversion tunnels is seen in the canyon wall in the background. Other construction equipment lies...
1932-02-10
View of the Hoover Dam construction site within Black Canyon from the downstream side of the Colorado River. The mouths of the diversion tunnels are seen in the foreground and the dam wall is nearly complete. Construction equipment, buildings...

View of Hoover Dam construction site, looking upstream. Above the site is the Colorado River. There are concrete forms, construction buildings, hoisting machinery, and a cable high above the Black Canyon in the picture. There is also a train...
1933-09-22
View of concrete pouring bucket suspended over railroad flat car.

Construction workers stand outside a Union Pacific Streamline train at the dam site. Workers continue work on pouring concrete into forms on the top of the dam wall. Scaffolding supports workers working on the face of the dam wall. A section of...

Interior view of construction on the Nevada side of the no. 2 diversion tunnel. Scaffolding rigged with electric lights is standing on the middle of the tunnel floor.

Vehicles, men, and construction equipment are visible. This view was taken in the early stages of the construction of Hoover Dam in the bottom of Black Canyon.
1933-06-03
Upstream view of Black Canyon and the Colorado River from the Hoover Dam construction site. A temporary dirt road is seen on the left side of the canyon floor, along with some scaffolding. Stray lumber is floating by the river's edge.

Photo shows one man sitting at a table signing a document while several men standing behind him observe. The men are identified, left to right, as Charles P. "Pop" Squires; P.W. Dent, Assistant Commissioner of Reclamation; Mayor Fred Hesse;...
1931-04-01
Two identical views of the downstream face of Hoover Dam after completion. Cars are parked at a scenic overlook near the dam. The intake towers are visible behind the dam and a portion of the reservoir (Lake Mead) can be seen.

Aerial view of Hoover Dam after completion. The intake towers are visible behind the dam as Lake Mead (the reservoir) is filling. The spillways can be seen also. The power houses can also be seen at the bottom of the dam.

Aerial view of Hoover Dam and the surrounding area showing the downward face of the dam, the intake towers, Lake Mead (the reservoir) and a portion of the Colorado River. Fortification Hill is visible in the background. The wing of the plane...

Aerial view of Hoover Dam and the surrounding area from the downstream side. The face of the dam is visible with the intake towers behind it. Lake Mead (the reservoir) can be seen.

Shows construction of Hoover Dam from the upstream side. Buildings and trucks are visible on the cofferdam. One of the portals to the diversion tunnels can be seen at lower left. The intake towers are rising behing the face of the dam. Cables...
1934-05-29
Aerial view of Hoover Dam and the surrounding area showing Lake Mead (the reservoir) and part of the Colorado River. Water is flowing from the outlet works, and the intake towers are visible behind the dam. Shows the downstream face of the dam.

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