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

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101 Object thumbnail
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...
102 Object thumbnail
Downstream view of Hoover Dam construction Shows a downstream view of the Hoover Dam project from the crest of the dam. Power house and lower portals of diversion tunnels are seen. Buildings and structures, trucks and roads are visible also.
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View of Hoover Dam construction from the top of the dam Shows Hoover Dam construction from the top of the dam looking down. The power house, valve houses, and lower portals of the diversion tunnels are visible. Various buildings and trucks are also shown. The Colorado River is...
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Interior of diversion tunnel during Hoover Dam construction Interior view of a diversion tunnel, showing the water conduit being placed. Scaffolding is visible and the area is lit with electric lighting.
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Looking into the Arizona spillway raise. View of construction inside the Arizona spillway raise. A concrete-pouring jumbo on tracks is being used for grouting. Other concrete pouring forms can be seen on the interior spillway walls.
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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...
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Downstream view of Hoover Dam construction site Viewpoint of dam construction from below the lower portals of the diversion tunnels. Muck disposal road shown on both sides of the river. Some trucks are visible in the foreground.
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Construction on Hoover Dam and the power houses looking upstream from the lower portals road View of the Hoover Dam construction site in Black Canyon, showing the nearly-completed dam face and construction on the power houses in the lower cofferdam. Concrete pouring forms are seen on the tops of the power houses. Temporary buildings...
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Hoover Dam construction site, looking upstream from the lower portals road View of the Hoover Dam construction site in Black Canyon, showing the nearly-completed dam face and construction on the power houses in the lower cofferdam. Concrete pouring forms are seen on the tops of the power houses. Temporary buildings,...
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Construction on Hoover Dam and the power houses looking upstream from the lower portals road View of the Hoover Dam construction site in Black Canyon, showing the nearly-completed dam face and construction on the power houses in the lower cofferdam. Concrete pouring forms are seen on the tops of the power houses. Temporary buildings, construction...
111 Object thumbnail
Aerial view of Hoover Dam, looking upstream on the Colorado River Aerial view of the Hoover Dam construction site in Black Canyon. Visible are the spillways, intake towers, dam face, diversion tunnels and construction on the power houses. Temporary buildings are seen in the cofferdam downstream of the dam face. The...
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Hoover Dam -- downstream face Color transparency looking towards the downstream face of Hoover Dam. Part of the Colorado River and the portals to the diversion tunnels ares visible.
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Hoover Dam -- upstream side Shows upstream side of the dam with the almost-finished intake towers. Also shows the mouth of a diversion tunnel and derrick cranes on both sides of the canyon. The reservoir (Lake Mead) has begun to fill.
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Hoover Dam -- upstream side Shows upstream face of dam with almost-completed intake towers. The reservoir (Lake Mead) has started to fill, and a man is rowing a boat on the lake. The mouth of a diversion tunnel on the left side of the picture...
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Hoover Dam -- outlet works Shows the downstream face of the dam with the outlet works spewing water. The entrances to two of the diversion tunnels are visible. There is a dump truck parked on one of the side roads.
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Outlet works -- Hoover Dam Upstream view of Hoover Dam, showing the Arizona outlet works spewing water. The power houses and part of the entrance to one diversion tunnel are visible.
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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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