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View of the spillway and the reservoir (Lake Mead). Lake Mead is completely filled at this point. Transmission towers and electric lines are visible in the background.
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President Franklin Roosevelt speaking standing at a lectern at the dedication of Hoover Dam on Sept. 30, 1935.
1935-09-30
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Shows upstream side of the dam with the almost-finished intake towers. Also shows the mouth of a diversion tunnel and derrick cranes on both sides of the canyon. The reservoir (Lake Mead) has begun to fill.
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Water pours from the outlet works of the valve house on the Arizona side. Also shows some construction workers standing by a wall near the Nevada power house and looking at the water. There is also a truck in the picture and a mountain in the...
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Shows the face of the dam with water streaming from the outlet works on both sides. Also shows the central power house, the mouth of a diversion tunnel on the Nevada side, and Fortification Hill in the background.
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Color transparency showing the top of the dam. Intake towers and a spillway are visible. Part of the upstream face of the dam is visible and there are cars parked on the road which crosses the dam. The reservoir (Lake Mead)is almost filled at...
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Color transparency of the upstream face of Hoover Dam, showing the intake towers, the reservoir (Lake Mead) and the surrounding mountains.
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Exterior view of diversion tunnel at the Hoover Dam site during construction. Photo shows the Colorado River flowing through the tunnel and scaffolding around the partially constructed tunnel.
2024-04-19
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This is a view of construction workers working on a tunnel at the Hoover Dam site. There are two construction workers standing to the side of a track leading from a tunnel in the side of the mountain. There is a is a construction worker operating...
2024-04-19
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Color transparency showing aerial view of Hoover Dam and Lake Mead. Also shows a portion of the Colorado River.
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View of the Hoover Dam construction site looking downstream on the Colorado River in Black Canyon. The nearly-completed dam face, intake towers and spillways are seen. Cableways run over the canyon above the dam face and remaining construction...
1935-03-25
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View of construction on the Nevada and Arizona power houses, taken from the valve house catwalk in the lower cofferdam. The dam face is seen in the background. Concrete pouring forms are visible on the power houses. Temporary buildings,...
1935-06-24
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View, taken from high above the canyon, of the Colorado River and water spewing from the outlet works of Hoover Dam. Hoisting equipment is lifing a piece of construction equipment across the canyon.
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Color transparency showing the finished Hoover Dam spillways up close, with mountains and power lines in the background.
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View of the diversion of the Colorado River into diversion tunnel no. 1 as the gate on diversion tunnel no. 4 is being lowered (on the left). A line of construction workers can be seen standing on the bank of the cofferdam in front of a power...
1935-02-01
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View of construction inside the Arizona spillway raise. A concrete-pouring jumbo on tracks is being used for grouting. Other concrete pouring forms can be seen on the interior spillway walls.
1935-09-27
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View of the Nevada spillway drainage flume and general area. Mountains are visible in the background.
1935-08-26
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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.
1935-09-26
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View of excavation and construction at the Hoover Dam switchyard. Note the Boulder Dam highway in the back (now U.S. 93). Power shovels, trucks, and buildings are visible, with the mountains in the background.
1935-10-28
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View of downstream plug, from the Nevada plug adit. Note the forms for the first pour being built.
1935-07-26
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Shows the pipe inside a diversion tunnel at Hoover Dam during construction. Electric lights illluminate the scene. Building materials are visible.
1935-11-25
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View of the Arizona intake towers during construction. They are on the side of the canyon and the Colorado River is visible below. Above and behind the towers a cableway is suspended and other equipment can also be seen.
1935-02-25
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View of the roof of the Nevada valve house during construction. Note the low strength pedestals and the double layer of railroad iron being placed. The face of the dam can be seen in the background at the right. High scaling equipment is...
1935-08-27
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Shows the Nevada valve house being built at the Hoover Dam site. Note the forms for the roof beams being built. Buildings, construction equipment, bridges, and cables are visible.
1935-04-25
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