Search for exactly "Suspension bridges"

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Hoover Dam construction Shows construction of Hoover Dam from the downstream side. Concrete pouring forms are shown as the face of the dam takes shape. One of the intake towers is under construction. A temporary suspension bridge is visible and...
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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 Hoover Dam during construction. Cables are visible spanning the dam. Concrete pouring forms can be seen on the power houses. A temporary bridge is suspended across the canyon and there are buildings on the floor of...
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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 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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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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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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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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