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View of the upstream side of the dam and the intake towers. In the background mountains and construction roads are visible. Lake Mead (reservoir) is visible above the dam.

Color transparency showing the finished Hoover Dam spillways up close, with mountains and power lines in the background.

Color transparency showing Hoover Dam just after dusk. The dam is illuminated with electric lighting and the tops of the intake towers are visible. The lights are reflected in the waters of the reservoir (Lake Mead).

Color transparency showing generators in the interior of Hoover Dam. A man standing next to a generator gives perspective to the size of the generator.

View of the construction of the intake towers at Hoover Dam, looking up from the floor of the canyon. The face of the dam is visible at left and hoisting machinery can be seen next to the towers.

Night view, taken from above, of water spewing from the outlet works at Hoover Dam. The scene is lit up with electric lighting.

View of the outlet works spewing water. This photo was taken while the dam was still under construction and shows cables, construction equipment and workers.

A night view of water spewing from the outlet works at Hoover Dam before the dam was completed. Electric lighting illuminates the scene. A man is leaning on the edge of the wall, peering into the water below.

View of the intake towers at Hoover Dam, taken when the dam was nearly completed. There is a boat in the water at the base of the towers. A portion of the face of the dam is visible at right.
1935-07-26
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.

Close-up view of the outlet works at Hoover Dam, spewing water.

Close-up view of the intake towers during the latter period of the construction of Hoover Dam. The waters of the reservoir (Lake Mead) are visible below the towers and there are mountains in the background.

View looking down on the outlet works at Hoover Dam toward the end of the construction of the dam. Water is spewing into the canyon.

View of the Arizona valve house built into the wall of Black Canyon. Remnants of scaffolding and construction equipment can be seen around the valve house.
1935-06-24
View from the Arizona side of the Hoover Dam construction site of work on the Nevada valve house. Construction on the Nevada power house is seen in the lower right. Concrete pouring forms are visible on both structures. A temporary bridge is seen...
1935-06-24
A construction worker is seen inside the Nevada valve house. Pipe ends protrude from parallel walls in the valve house and other pipes lie on the floor or on scaffolding. Planks and debris are also seen on the floor.
1935-06-24
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 upper right. Temporary structures and a...
1935-06-24
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
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.
1935-06-24
Close-up of construction on the Arizona valve house. Concrete pouring forms cover the top of the structure. Lumber is seen lying in the unfinished portals.
1935-05-27
Close-up of construction on the Nevada valve house. Scaffolding and temporary stairways are seen outside the structure. Lumber lies inside unfinished portals.
1935-05-27
Close-up of construction on the Nevada power house. Concrete pouring forms and other construction equipment are seen around the structure. An electric dragline is seen on top of the pouring forms.
1935-05-27
Close-up of construction on the central section and a portion of the Nevada side of the power house, directly below the dam face. Concrete pouring forms and other construction equipment are seen around the structures.
1935-05-27
View of the Hoover Dam construction site in Black Canyon, showing the nearly-completed dam face and construction on the power houses in the lower cofferdam. Concrete pouring forms are seen on the tops of the power houses. Temporary buildings and...
1935-06-01
View from the top of Hoover Dam of construction on the power houses in the lower cofferdam. Construction on the Arizona power house in the wall of Black Canyon can also be seen in the upper left. Temporary buildings and construction equipment are...
1935-06-01
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