Trans canyon Pipeline (Historic) Silver Bridge Construction. Nearly completed Silver Bridge over the Colorado River. Structure in the foreground, near the north bridge tower, houses the winch that powered the high-line and lifting cables for the personnel cage and concrete bucket. Circa 1965 NPS

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Size: 1719px × 1163px
Photo credit: © Natural History Archive / Alamy / Afripics
License: Licensed
Model Released: No

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