Search for all of "Black Canyon", all of "Bridges", all of "Hoover Dam ariz And Nev -- Design And Construction"

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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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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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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 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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Hoover Dam construction site Shows Black Canyon and the Colorado River at the site of the construction of Hoover Dam. Some roads and railroad tracks are visible as well as buildings. Shown also are railroad cars and a temporary suspension bridge.
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Construction of Hoover Dam Shows a panoramic view of the Hoover Dam site in Black Canyon. There are trucks and buildings visible on the floor of the canyon. One of the portals to the diversion tunnels is visible. The concrete pouring...
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Hoover Dam from the downstream side with bridge and buildings View of the Hoover Dam construction site within Black Canyon from the downstream side of the Colorado River. The dam wall is nearly complete and the mouths of the diversion tunnels can be seen. Building plants and construction equipment are...
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View of Hoover Dam construction, early stage An aerial view of the Colorado River and Black Canyon during the early stages of Hoover Dam construction. The photo was taken from near the top of the dam site, on the Nevada site. It shows a building,...
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Diversion tunnels during Hoover Dam construction Photo shows the Arizona diversion tunnels during the construction of Hoover Dam. Two men, railroad trucks, a temporary bridge, some temporary structures and a cable over the canyon are also shown.
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Water flowing into Colorado River, June 16, 1933 The Colorado River flows out of the diversion tunnels in the Hoover Dam construction site in Black Canyon. Bridges are seen crossing the river and the canyon.
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Arizona intake tower derrick. View of construction on the Arizona intake towers, looking upstream on the Colorado River in Black Canyon. A derrick anchored in the intake tower base is seen above the canyon. A temporary bridge is also seen spanning the...
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Aerial view of the Hoover Dam construction site looking downstream from the Arizona side Aerial view of the Hoover Dam construction site, looking downstream on the Colorado River in Black Canyon. Construction on the intake towers on both sides of the dam face is shown. The top of the dam face is covered with...
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View of the Hoover Dam costruction site from the lower cofferdam View of the Hoover Dam construction site, looking upstream from the lower cofferdam. The nearly-completed dam face is seen in the background, and cars and trucks are seen on dirt roads in the cofferdam. Scaffolding and concrete pouring forms are...
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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 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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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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Colorado River -- Hoover Dam construction site View of the Colorado River before the water was diverted to build Hoover Dam. Suspension bridges across the river are visible and various buildings can be seen on the lower walls of Black Canyon.
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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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Colorado River in early stages of Hoover Dam construction Shows the Colorado River and Black Canyon during the early stages of the construction of Hoover Dam. A temporary bridge spans the river and some construction workers are on the shore.
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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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