Search for all of "Colorado River", all of "Hoover Dam ariz And Nev -- Design And Construction"

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Aerial view of sundown in Black Canyon at the Hoover Dam construction site View of the Colorado River flowing through Black Canyon at dusk. Bridges and catwalks illuminated by electric lights span the canyon over the river. Other electric illumination is seen throughout the construction site.
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Preliminary construction at Hoover Dam site "Down-stream from Observation Point -- note tunnel in center of picture. Trucks hauling muck from Nevada portals must go through this tunnel to dumping grounds one mile away. [150 feet to river straight down]"-- [hand-written inscription on back...
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Hoover Dam construction "Down stream from Observation Point. Buildings on the right side are water sedimentation plants. Water treated for Boulder City. Left side is Arizona side of River." [hand-written inscription on back of photo] This photo was taken high...
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Hoover Dam construction "Downstream from upper portals. Note the two portals on Arizona side of river and new suspension bridge under construction."[hand-written inscription on the back of the photo] Cables are visible overhead and a truck is also in the picture.
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Sundown in Black Canyon at the Hoover Dam construction site Night view of the Colorado River flowing through the Hoover Dam construction site in Black Canyon. Catwalks are seen suspended over the river. The site is illuminated by electric light.
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Hoover Dam construction "Upstream from observation point. Note car going down road." [hand-written inscription on back of photo] Taken from high above the Colorado River, this view shows roads, bridges, buildings and structures, and a car on the side road.
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Hoover Dam construction "Looking int.[o] canyon from observation point -- up river bridge is for trucks hauling muck out of upper portals." [hand-written inscription on back of photo] Taken from an observation point high above Black Canyon, this view shows bridges spanning the...
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Hoover Dam construction "Upstream toward lower portals." [hand-written inscription on back of photo] This view shows the Colorado River in Black Canyon during the early stages of the construction of Hoover Dam. A suspension bridge across the river can be...
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Hoover Dam site from the Nigger Head, Diversion tunnel construction Aerial view of the Colorado River flowing through Black Canyon during early construction at the Hoover Dam site. A dirt road runs alongside the river and catwalks are suspended over the river.
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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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Construction -- Hoover Dam Handwritten inscription on back of photo: "Rex motor mixer that has been picked off a white truck and being swung into position at tunnel #1 with load of cement." Shows hoisting machinery, railroad tracks, a steam locomotive, a...
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Hoover Dam construction View of the Hoover Dam construction site showing equipment being lowered by cable, buildings, and other construction equipment. The Colorado River is partially visible as is the cofferdam.
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Looking up Black Canyon during construction of the diversion tunnels Looking upstream on the Colorado River flowing through Black Canyon at the Hoover Dam construction site. Bridges and catwalks are suspended over the river and the newly-dug mouths of the diversion tunnels are seen on both sides of the...
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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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Hoover Dam construction Shows a general view of dam construction. Cables, buildings, and roads are visible. Concrete pouring forms can be seen at the bottom of the canyon. A portion of the Colorado River is also visible. The...
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Hoover Dam construction Shows one of the portals to the diversion tunnels. A portion of the Colorado River is visible as well as construction workers and construction buildings.
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Hoover Dam construction Handwritten inscription on back of photo: "Looking upstream into Black Canyon toward Boulder damsite after river had been diverted thru diversion tunnels Nos. 3 and 4. Temporary back-wash dike seen immediately upstream from tunnel out..." Portals to...
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Looking up Black Canyon during the construction of the diversion tunnels View of the Colorado River running through Black Canyon at the Hoover Dam construction site. Workers can be seen walking over bridges and catwalks that are suspended over the river, and on dirt roads that run alongside the river. ...
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Early stages of construction of Hoover Dam Handwritten inscription on back of photo: "Hoover Dam -- Down the Colorado River. Dump trucks are on Arizona side and hauling muck to dumping grounds -- no muck can be dumped in the river." The road along...
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Black Canyon during early stages of dam construction Handwritten inscription on back of photo: "Building of new suspension bridge downstream from upper portals. Note man riding down on bridge section." Hoisting equipment is visible suspended high above the Colorado River in Black Canyon.
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Bridge construction near Hoover Dam site "At lower portal mouths on Arizona side of river. Picture taken from Nevada side." (handwritten inscritpion on back of photo) Shows a temporary suspension bridge and several buildings near the lower portals of Hoover Dam. Cables are...
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Construction at lower portal of Hoover Dam Shows construction at the lower portal of Hoover Dam. Part of the bridge is visible as are trucks, buildings, and construction workers. Part of the Colorado River is visible and also the wall of Black Canyon.
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Hoover Dam construction Panoramic view of Black Canyon and Hoover Dam under construction. Two of the portals to the diversion tunnels are visible. The face of the dam is nearing completion and the concrete pouring forms can be seen. Part...
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Construction of Hoover Dam Construction photo showing the Colorado River with temporary suspension bridges, roads along the side of the canyon, trucks, and buildings.
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Aerial view -- Hoover Dam construction Aerial view of Hoover Dam, Black Canyon, and the Colordo River during the construction of the dam. Two portals of the diversion tunnels are visible. There are trucks and buildings on the cofferdam. The face of the...
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Hoover Dam construction, looking upstream View of the construction of Hoover Dam, looking upstream. Shows concrete forms, various construction buildings, and high scaling equipment. Taken from high above, the Colorado River can be seen above the dam site.
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Construction on Hoover Dam, looking downstream on the Colorado River Aerial view of the Hoover Dam construction site. Construction workers are seen amid concrete pouring forms and other construction equipment. Temporary stairs are attached to the wall of Black Canyon, and a railroad bench used for transportation of concrete buckets...
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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 railroad tracks being laid at Hoover Dam site. A view of railroad tracks on the side of the mountain leading into a tunnel in the background. Both walls of the canyon are visable and the Colorado River is flowing through the bottom of the canyon. In the foreground...
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Arizona intake towers, from the Nevada side 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...
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Diversion tunnel no. 1 trashrack and counterweight assembly just prior to the diverting of the... Construction workers are seen climbing on the outside of the no. 1 trash rack at diversion tunnel no. 1. Other workers view the scene from a railroad trestle that runs over the diversion tunnel portal, and from the upper cofferdam...
 

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