Search for all of "equipment", all of "Construction Workers"

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101 Object thumbnail
Interior of the Nevada valve house Interior view of the Nevada valve house. Construction scaffolding surrounds the installation of the needle valves and gates. Two construction workers can be seen in the rear at an unfinished opening to the valve house.
102 Object thumbnail
Steel rails on the roof of the Nevada valve house awaiting concrete pouring View of steel rails on the roof of the Nevada valve house, ready for pouring concrete slab. Two construction workers are seen in the distance near the canyon wall.
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Construction on the Nevada spillway A construction worker stands in front of a fence above the Nevada spillway. Construction on one of the intake towers can be seen in the upper left. Concrete pouring forms, other construction equipment and temporary buildings can be seen in...
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Construction on the Arizona power house View from the downstream cofferdam of construction on the Arizona power house. Concrete pouring forms and steel framework stand on top of the power house foundation. The dam face and wall of Black Canyon can be seen in the background....
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Water outlets at Hoover Dam during construction 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.
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Construction on the power houses viewed from the valve house catwalk 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...
107 Object thumbnail
Construction on the roadway on top of Hoover Dam 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...
108 Object thumbnail
Looking upstream toward the Nevada intake towers, showing the intake bridge girders in place. 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...
109 Object thumbnail
Construction on the Arizona power house 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...
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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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Construction crew at bottom of Boulder Canyon Construction crew busy making forms at the bottom of Black (not Boulder) Canyon. There are tracks leading into the water that is in the canyon and there is a couple of carts sitting on the tracks. Several of the...
112 Object thumbnail
Digging diversion tunnels at Hoover Dam. Construction workers digging diversion tunnels using construction equipment.
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Hoover Dam -- intake towers Shows intake towers on upstream side of dam. Towers are almost completed. Coffer dam is still in place. Construction workers and construction equipment including derrick cranes are visible.
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Construction on crest of Hoover Dam View of the concrete work on the crest of Hoover Dam. Men and construction equipment are visible.
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View of the concrete lining in the diversion tunnels Construction workers are pouring concrete to line the diversion tunnels. Lights illuminate the project. Huge buckets hang from a crane.
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No. 5 intake tower finished to elevation 1232, showing curtain wall Shows construction on two of the intake towers. A construction worker is standing on the intake tower nearest the camera. Consturction with concrete pouring forms on the top of the dam is also visible as is construction equipment such...
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Agitators dumping concrete into buckets Construction workers are operating machinery (agitators) which dump concrete into buckets. Location is the interior of a diversion tunnel at the Hoover Dam construction site.
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Hoover Dam construction View of construction workers working on Hoover Dam. They are building railroad tracks at the site. Equipment and a truck can be seen.
119 Object thumbnail
High scaling operations View of Black Canyon with construction equipment on the canyon floor and cables suspended over the canyon. High scalers can be seen on the rock face on the left side of the photo.
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Hoover Dam construction 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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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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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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Hoover Dam workers on canyon floor Shows workers using drills on the floor of Black Canyon at the Hoover Dam construction site.
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Hoover Dam site -- workers welding Shows two workers welding at the Hoover Dam construction site.
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Pouring concrete -- Hoover Dam Shows construction workers pouring concrete at Hoover Dam. The huge bucket for pouring concrete and concrete forms are visible. This photo is a postcard.
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Cement work -- Hoover Dam Shows a construction worker standing in concrete at the Hoover Dam construction site. Concrete forms can be seen as well as the huge bucket used to pour concrete into the forms. The bucket was lowered by hoisting machinery,...
127 Object thumbnail
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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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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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.
130 Object thumbnail
Upper portals -- Hoover Dam site Handwritten inscription on back of photo: "View at upper portals showing narrowed channel just prior to diversion". Construction roads, equipment, and workers are visible. Some buildings and trucks are also in the picture.
131 Object thumbnail
Work on cofferdam -- Hoover Dam Shows men and trucks working on the cofferdam at the Hoover Dam site. Power shovels and other construction equipment are also visible.
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Hoover Dam construction Shows construction equipment being lowered by cable at the site of Hoover Dam construction. Buildings, other construction equipment, and workers are visible.
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Construction of gravel plant near Hoover Dam site Shows the construction of the gravel plant near the Hoover Dam site. A crane is lifing equipment. Construction workers, cars and trucks, and buildings can be seen.
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Construction worker operating a tractor during construction of Hoover Dam A construction worker is driving a caterpillar tractor in the rocks.
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Temporary cableway spanning the Colorado River near Lookout Point A temporary cableway filled with construction workers is poised above the Colorado River in Black Canyon near Lookout Point. The Arizona spillway operations are shown in the background.
136 Object thumbnail
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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Trucks hauling concrete in the diversion tunnel This photo shows trucks and equipment used for hauling and pouring concrete to form the invert lining in a diversion tunnel at Hoover Dam. Also shows some construction workers.
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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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Construction bridges across the Colorado River This is a view of a truck loaded with equipment driving across a bridge spanning the Colorado River at Hoover Dam site. Construction workers and equipment are shown on the bank of the river. At the right is...
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Concrete form construction work View of construction workers buidling wooden forms for concrete pouring on Hoover Dam. The concrete dam wall is partially finished, and framework surrounds the beginning construction of the intake towers.
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Bridge across Boulder Canyon at Hoover Dam site. A bridge stretches from one side of Black (not Boulder) Canyon to the other side, with the Colorado River flowing beneath. The background shows scaffolding against the mountainside. A building sits against the mountain at the far end of the...
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View of power houses being constructed at the Hoover Dam site General view of the construction of Hoover Dam, looking upstream. The power houses are being built in this phase. A cableway spans the canyon carrying a tram across. There are several buildings, construction workers, and trucks visible....
143 Object thumbnail
Cleanup site at lower portal of Hoover Dam Shows the cleanup work being done at the lower portal on the Nevada side of the canyon. A power shovel with men aboard is visible. Also cables and other equipment can be seen. The portal is jutting...
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Diversion of the Colorado River into diversion tunnel no. 1 as the gate on diversion... 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...
145 Object thumbnail
Panorama view, showing Six Companies Inc. work on the Arizona side of Black Canyon Highway. 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.
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Looking across the downstream face of Hoover Dam, showing the utility towers and elevator shaft Shows construction with concrete pouring forms going on on the top of Hoover Dam. There is a blurred image of a construction worker in the upper right corner, and a cableway with some sort of bucket is above the dam....
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Construction workers in diversion tunnel, Hoover Dam site Shows construction workers posing on the drilling jumbo inside a diversion tunnel during the construction of Hoover Dam. Other men are standing on the floor of the tunnel looking up at the jumbo. Electric lights illuminate the tunnel.
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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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