Search for all of "Tunnels", all of "Hoover Dam ariz And Nev -- Design And Construction", all of "Construction Equipment"

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Construction of diversion tunnels -- Hoover Dam site View of construction taking place at the upper portals of the diversion tunnels for Hoover Dam. Power shovel, buildings, roads, and scaffolding can be seen. Only the exterior portions of the tunnels are visible.
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Diversion tunnel at Hoover Dam Looking into the interior of a partially constructed diversion tunnel. There appears to be some sort of scaffolding for construction workers to stand on and the tunnel is illuminated by electric lighting.
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Putting in the ceiling on the Nevada side of the no. 2 diversion tunnel 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.
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Sidewall concreting in diversion tunnel no. 4 showing workers Construction inside diversion tunnel no. 4. Steel beams rigged with electric lights frame the tunnel walls and ceiling. A construction truck and workers are seen on the tunnel floor. Two workers are in the foreground.
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Power house on Nevada side of Hoover Dam View of a power house on the Nevada side taken during the construction of Hoover Dam. Shows power penstock tunnels, scaffolding, construction equipment and trucks.
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Hoover Dam construcion -- blasting Shows the construction of Hoover Dam. One of the portals of the diversion tunnels is visible. Dynamite blasting is taking place in the canyon and trucks and various construction buildings are visible on the cofferdam. Also shows some...
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Workers in diversion tunnels -- Hoover Dam site Shows construction workers, truck, and power shovel inside a diversion tunnel at the Hoover Dam construction site. Electric lights illuminate the scene.
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Close-up of trimming jumbo Shows construction workers on the trimming jumbo which was used to scale the walls of the diversion tunnels and remove projecting rock. The tunnel is at the Hoover Dam construction site.
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Six Companies' power shovel dumping dirt in dump truck in diversion tunnel at Hoover Dam... Construction workers are operating a power shovel, dumping dirt into a dump truck in a diversion tunnel at Hoover Dam. This is in the early phase of dam construction.
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Crane transporting mixers in diversion tunnel at Hoover Dam site Photo shows a crane transporting cement mixers pouring the concrete lining in a diversion tunnel for Hoover Dam. Workers and equipment are visible in the interior of the tunnel.
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Sidewall concreting inside diversion tunnel no. 4 Construction inside of diversion tunnel no. 4. Steel beams rigged with electric lights frame the walls and ceiling of the tunnel. A construction truck and workers are seen on the tunnel floor. In the distance a gantry...
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Gas-air shovel caught in the flooded Colorado River 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...
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Trash rack structure being installed in front of diversion tunnel no. 2 Close-up of construction workers installing the foundations of a trash rack in front of the portal of diversion tunnel no. 2. This is where the first pay concrete was poured.
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Looking out of the interior of diversion tunnel no. 2, with gas-air shovel inside the... View out of the upper portal of the unfinished diversion tunnel no. 2. A Bucyrus-Erie 43-B gas-aire shovel is seen near the mouth of the tunnel and reflected in a pool of water inside the tunnel. A man...
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Workers and drilling jumbo inside diversion tunnel no. 4 Construction workers are seen working with a drilling jumbo inside diverson tunnel no. 4.
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Close-up of workers using a drilling jumbo inside a diversion tunnel Close-up of construction workers using a drilling jumbo to excavate the interior of one of the diversion tunnels. The tunnel is illuminated by floodlight.
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Construction worker in bulldozer in front of diversion tunnel portal A construction worker sits in a Caterpillar bulldozer in front of an unfinished diversion tunnel portal.
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Construction workers using a drilling jumbo inside a diversion tunnel Construction workers using a drilling jumbo to excavate one of the diversion tunnels.
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Interior of spillway tunnel, Hoover Dam site Shows concreting equipment inside No. 1 spillway tunnel during the construction of Hoover Dam.
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Interior of diversion tunnel during Hoover Dam construction View of interior of diversion tunnel No. 3 during the construction of Hoover Dam.
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Construction on the Nevada power house View of construction on the Nevada power house. Framework and concrete pouring forms cover the site. Penstock tunnel openings are visible in the canyon wall in the background. Construction equipment, vehicles, temporary buildings and construction workers are seen on the...
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Construction on the no. 4 penstock raise View of construction workers on framework inside the no. 4 penstock tunnel portal during construction of Hoover Dam.
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Construction in the no. 4 penstock raise View of construction inside the no. 4 penstock raise. Construction workers stand on the framework and platforms inside the unfinished tunnel.
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Construction inside the upper no. 3 plug Construction inside the upper no. 3 plug showing framework, pipe sections and a pumpcrete used for pumping concrete.
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Construction at Hoover Dam, inside a tunnel Shows construction workers deep inside a tunnel at the Hoover Dam site. The scene is lit with electric lights and a railroad track is visible.
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Number 3 plug and raise Number three plug and raise with the plug concrete in place. Also shows construction equipment.
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View of no. 4 plug, Hoover Dam site Shows work on the no. 4 plug inside a diversion tunnel at the Hoover Dam site. Electric lights illuminate the scene and construction equipment is visible. It shows the method of pouring concrete.
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View inside a tunnel at Hoover Dam site Shows the building forms inside a tunnel at Hoover Dam. The shot is taken from the downstream Nevada adit, looking toward a downstream plug. Several construction workers can be seen.
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Interior of Hoover Dam diversion tunnel during construction Shows the interior of a diversion tunnel at Hoover Dam during its construction. A construction worker and equipment can be seen. Note the cleanup operations, getting ready for the carpenters.
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Hoover Dam during construction View looking upstream toward Hoover Dam. Alos shows the entrance to a tunnel and the powerhouses under construction. Trucks, cables, a cableway with trams, and other construction equipment can be seen.
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Crew working at Hoover Dam site 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...
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Hoover Dam from the downstream side View of face of dam showing water coming out of the outlet works on the Arizona side. A bridge, a cableway above the dam, the mouths of several diversion tunnels, the Nevada power house, and construction equipment are visible. The...
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Construction of Hoover Dam View of Hoover Dam under construction. A portal to a diversion tunnel is visible at lower left. The power houses can be seen as well as several buildings in the lower right of the photo on the cofferdam.
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Upstream face of Hoover Dam, and the Nevada intake towers Shows construction on the two Nevada intake towers. Also shows part of the upstream face of Hoover Dam with construction going on on the top of the dam. A cableway, construction equipment such as derrick cranes, and tunnel...
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Blasting at Hoover Dam site View of construction in Black Canyon at the Hoover Dam site. Construction workers are standing by the railroad tracks looking at a dynamite blast that is taking place in the distance. The Colorado River is visible as...
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Inside a diversion tunnel -- Hoover Dam construction Shows a construction worker and power shovel inside a diversion tunnel at the Hoover Dam construction site.
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Construction in diversion tunnel -- Hoover Dam View of the drilling jumbo working in one of the diversion tunnels during the construction of Hoover Dam.
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Construction of diversion tunnel at Hoover Dam Shows a drilling jumbo and other construction vehicles inside a diversion tunnel during the construction of Hoover Dam.
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Construction -- Hoover Dam -- Diversion tunnel Shows the construction of one of the diversion tunnels at Hoover Dam.
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Construction of Hoover Dam diversion tunnel Shows a dump truck and construction workers framed at the mouth of a diversion tunnel during the construction of Hoover Dam.
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Construction workers inside Hoover Dam diversion tunnel Shows a power shovel dumping concrete into a dump truck inside a diversion tunnel during the construction of Hoover Dam. Construction workers are visible at work.
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Hoover Dam construction -- various phases This postcard shows the construction of Hoover Dam in four different stages. All views were taken from the same point looking upstream. The first image shows Black Canyon and the Colorado River at the very beginning of construction...
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Hoover Dam construction Panoramic view of the Hoover Dam construction site. One of the lower portals to a division tunnel can be seen. Buildings, trucks, and the cofferdam are also visible. A portion of the Colorado River is...
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View showing method of finishing slabs in invert lining. Construction workers are operating machinery to finish slabs in the invert lining of a diversion tunnel at the Hoover Dam site.
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Construction on the Nevada power house View of the Hoover Dam construction site, looking upstream on the Colorado River in Black Canyon. The partially finished dam face can be seen on the right, with concrete pouring forms and other construction equipment. Construction of the Nevada power...
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Construction on the Arizona power house View of the Hoover Dam construction site, looking upstream on the Colorado River in Black Canyon. The partially finished dam face can be seen on the left, with concrete pouring forms and other construction equipment. Construction of the Arizona power...
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Interior of penstock tunnel -- Hoover Dam construction site Interior view of number 4 raise and plug showing construction. Construction workers can be seen at the far end of the tunnel.
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Close-up of formwork in the Arizona power house Construction workers are seen working amid the wood and steel framework during construction of the Arizona power house. Unfinished penstock tunnel portals can be seen in the canyon wall in the background.
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Construction on the Nevada power house View of construction on the Nevada power house. The dam face is seen in the upper right. Unfinished penstock portals are seen in the canyon wall. Temporary buildings and construction equipment are seen in the cofferdam between the Nevada and...
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Construction view of the valve house and portal area of Hoover Dam Shows the Nevada construction adits, valve house and plug adit portal. Note the absence of the compressor plant. The beginning of the upstream of the lower portal road tunnel is visible. Buildings and structures, roads, and cables are...
 

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