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501 Object thumbnail
Title Outlet works -- Hoover Dam
Description Night view, taken from above, of water spewing from the outlet works at Hoover Dam. The scene is lit up with electric lighting.
502 Object thumbnail
Title Water outlets at Hoover Dam during construction
Description 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.
503 Object thumbnail
Title Night view of outlet works at Hoover Dam during construction
Description 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.
504 Object thumbnail
Title Intake towers at Hoover Dam during dam construction
Description 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...
505 Object thumbnail
Title Overhead view of Colorado River and outlet works at Hoover Dam
Description 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.
506 Object thumbnail
Title Outlet works -- Hoover Dam
Description Close-up view of the outlet works at Hoover Dam, spewing water.
507 Object thumbnail
Title Intake towers -- Hoover Dam -- during construction
Description 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.
508 Object thumbnail
Title Outlet works -- Hoover Dam
Description 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.
509 Object thumbnail
Title Arizona valve house viewed from the Nevada side of Hoover Dam
Description 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.
510 Object thumbnail
Title Construction on the Nevada valve house seen from the Arizona side of the Hoover Dam...
Description 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...
511 Object thumbnail
Title Interior of the Nevada valve house
Description 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.
512 Object thumbnail
Title Road tunnel portal
Description 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...
513 Object thumbnail
Title Construction on the power houses viewed from the valve house catwalk
Description 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, construction...
514 Object thumbnail
Title Panorama view, showing Six Companies Inc. work on the Arizona side of Black Canyon Highway.
Description 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.
515 Object thumbnail
Title Close-up of construction on the Arizona valve house
Description 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.
516 Object thumbnail
Title Close-up of construction on the Nevada valve house
Description Close-up of construction on the Nevada valve house. Scaffolding and temporary stairways are seen outside the structure. Lumber lies inside unfinished portals.
517 Object thumbnail
Title Close-up of construction on the Nevada power house
Description 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.
518 Object thumbnail
Title Close-up of construction on the central section of the power house
Description 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.
519 Object thumbnail
Title Construction on Hoover Dam and the power houses looking upstream from the lower portals road
Description 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...
520 Object thumbnail
Title View from the top of Hoover Dam of construction on the power houses
Description 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...
521 Object thumbnail
Title Hoover Dam construction site, looking upstream from the lower portals road
Description 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,...
522 Object thumbnail
Title View of the Hoover Dam construction site looking downstream on the Colorado River
Description 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 equipment is...
523 Object thumbnail
Title Construction on the roadway on top of Hoover Dam
Description View of construction of the roadway on the top of Hoover Dam. The Arizona intake towers and spillway are seen at the top of the picture. Construction workers and concrete pouring forms are seen at the top of the dam...
524 Object thumbnail
Title Looking upstream toward the Nevada intake towers, showing the intake bridge girders in place.
Description View of construction on the Nevada intake towers and a portion of the roadway on the top of the dam face. Construction workers and concrete pouring forms are seen on the top of the dam face on the right. One...
525 Object thumbnail
Title Construction on the Nevada power house
Description Construction on the Nevada power house. Concrete pouring forms are seen on top of the structure's foundation. A portion of the dam face is seen in the background. Temporary buildings, motor vehicles, electric draglines and construction equipment are seen on...
526 Object thumbnail
Title Construction on the Arizona power house
Description Construction on the Arizona power house. A portion of the dam face is seen in the upper left. A construction worker stands on a dump truck in front of the power house and another worker is seen sitting on part...
527 Object thumbnail
Title Construction on Hoover Dam and the power houses looking upstream from the lower portals road
Description 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, construction...
528 Object thumbnail
Title Construction on the power houses and valve houses viewed from the top of Hoover Dam
Description View from the top of Hoover Dam of construction on the power houses in the lower cofferdam and on the valve houses in the walls of Black Canyon. Temporary buildings and construction equipment are seen on the cofferdam floor. Roof...
529 Object thumbnail
Title Aerial view of Hoover Dam, looking downstream from the Arizona side of Black Canyon
Description Aerial view of the Hoover Dam, nearing completion, in Black Canyon. Visible are the dam face, intake towers and spillways, and the Nevada valve house is seen in the middle left. The Colorado River is seen upstream of the dam....
530 Object thumbnail
Title Aerial view of Hoover Dam, looking upstream on the Colorado River
Description Aerial view of the Hoover Dam construction site in Black Canyon. Visible are the spillways, intake towers, dam face, diversion tunnels and construction on the power houses. Temporary buildings are seen in the cofferdam downstream of the dam face. The...
531 Object thumbnail
Title Looking downstream from the Arizona side of Black Canyon, showing the reservoir level at the...
Description View of the Hoover Dam site looking downstream from the Arizona side of Black Canyon, showing the reservoir level (Lake Mead) at the base of the intake towers.
532 Object thumbnail
Title Hoover Dam -- interior
Description Color transparency of the giant generators inside Hoover Dam.
533 Object thumbnail
Title Hoover Dam -- interior
Description Color transparency of the interior of Hoover Dam. A man is standing on the platform under a huge piece of equipment.
534 Object thumbnail
Title Hoover Dam interior
Description Color transparency of the interior of Hoover Dam showing the giant generators. A man standing next to a generator gives perspective as to its size.
535 Object thumbnail
Title Hoover Dam -- Aerials of dam & Lake Mead
Description Color transparency showing aerial view of Lake Mead, Hoover Dam, and the Colorado River.
536 Object thumbnail
Title Looking upstream toward no. 1 upstream plug, showing approximately 7,100 second feet of water being...
Description View of water being discharged into the no. 1 diversion tunnel. A series of bundled pipes is visible on the right side of the tunnel wall.
537 Object thumbnail
Title Man at Observation Point looking upstream at Lake Mead
Description A man stands on a mountain in Boulder Canyon looking upstream from Observation Point at the reservoir area (Lake Mead) of Hoover Dam.
538 Object thumbnail
Title Aerial view of Hoover Dam and Lake Mead
Description Color transparency (aerial view) of Hoover Dam and Lake Mead. Part of the Colorado River is also visible.
539 Object thumbnail
Title Aerial view of Hoover Dam and Lake Mead
Description Color transparency showing aerial view of Hoover Dam and Lake Mead. Also shows a portion of the Colorado River.
540 Object thumbnail
Title Outlet works -- Hoover Dam
Description View of water spilling from the outlet works of Hoove Dam. Clouds and mountains are visible in the background.
541 Object thumbnail
Title Outlet works -- Hoover Dam
Description Photo shows water spewing from the outlet works of Hoover Dam. A portion of the power house is also visible.
542 Object thumbnail
Title Outlet works -- Hoover Dam
Description Shows water spewing from the outlet works of Hoover Dam. Sun is shining through the water
543 Object thumbnail
Title Hoover Dam intake towers
Description Shows the intake towers and the face of Hoover Dam. Lake Mead (reservoir)is beginning to fill.
544 Object thumbnail
Title Hoover Dam intake towers
Description Shows the intake towers and face of hoover Dam.
545 Object thumbnail
Title Hoover Dam
Description Expansive view of Hoover Dam taken from the side, looking across. The intake towers are prominent in the photo. Cars are visible on the road crossing the top of the dam. The mountains are in the background....
546 Object thumbnail
Title Hoover Dam
Description View of the face of Hoover Dam and the intake towers. A motor boat is visible on Lake Mead (the reservoir), which is beginning to fill.
547 Object thumbnail
Title Crew working at Hoover Dam site
Description 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...
548 Object thumbnail
Title View of Black Canyon
Description This shows a view of the Colorado River flowing through Black Canyon not (Boulder). To the right of the picture there is a cloud of dirt and debris drifting into the air from blasting for the dam site.
549 Object thumbnail
Title Crews and equipment in Black Canyon at dam site
Description A view of the Colorado River flowing through Black Canyon (not Boulder). In the foreground are air compressors and an open sided shed with a construction worker standing inside. There are tracks running along side of the shed following the...
550 Object thumbnail
Title Black Canyon
Description A view of the Colorado River flowing through Black (not Boulder) Canyon.
 

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