Search for all of "Tunnels", all of "Black Canyon ariz And Nev", all of "Davis Glenn A photographer"

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Looking up Hoover Dam 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 canyon....
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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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Penstock tunnel, Hoover Dam Aerial view of the Hoover Dam construction site on the Colorado River in Black Canyon. Cables are suspended across the canyon and a dirt road runs along the canyon floor. Early construction on a penstock tunnel can be...
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View of Hoover Dam from downstream on the Colorado River View of Hoover Dam from downstream on the Colorado River. The Nevada power house is vivisble on the left, and water is being discharged from the outlet works of the Arizona valve house on the right. The diversion tunnel portals...
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View of Hoover Dam from downstream on the Colorado River View of Hoover Dam from downstream on the Colorado River. The Nevada and central power houses are seen at the base of the dam face. Water is discharged from the outlet works of the Arizona valve house on the right....
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View of Hoover Dam from the downstream side of the Colorado River View of Hoover Dam from downstream on the Colorado River. Water is being discharged from the outlet works of the Nevada valve house on the left. Part of the Nevada power house and the central power house are seen at...
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Water discharging from the Nevada and Arizona outlet works into the Colorado River View of water discharging from the Nevada and Arizona outlet works in the valve houses into the Colorado River downstream from Hoover Dam in Black Canyon. Diversion tunnel portals and a steel bridge are seen in the foreground. Two of...
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View of water discharging from the Nevada and Arizona outlet works into the Colorado River View of Hoover Dam from downstream on the Colorado River. Water is being discharged from the Nevada and Arizona outlet works in the valve houses. The diversion tunnel portals and a steel bridge are seen in the foreground. Cables are...
 

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