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Photograph of the Mike O'Callaghan-Pat Tillman Memorial Bridge arch, pedestrian walkway, and bridge deck, Nevada-Arizona border, July 28, 2010
Date
2010-07-28
Description
Photographer's notes: "Walking to work on the structurally complete bridge." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Image
Slide of a spillway bridge at Hoover Dam, circa late 1930s
Date
1936 to 1940
Description
A Hoover Dam spillway bridge with two people on it.
Image
Photograph of the bridge arch segment for the Mike O'Callaghan-Pat Tillman Memorial Bridge on the Arizona side of Hoover Dam, March 5, 2009
Date
2009-03-04
Description
Photographer's notes: "Evening view of the Arizona arch segment. Temporary pylons supported cable stays, which in turn supported the arch segments during their construction." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Image
Photograph of the Golden Gate Bridge, San Francisco, circa 1940s to 1950s
Date
1940 to 1959
Description
The Golden Gate Bridge with a foggy view of Oakland in the background. Site Name: Golden Gate Bridge
Image
Photograph of a bridge across Boulder Canyon, Nevada, 1931
Date
1931
Description
Bridge across Boulder Canyon at Hoover Dam site near Boulder City, Nevada, 1931.
Image
Photograph of the small temporary bridge built in the gap between the Arizona and Nevada sections of the Mike O'Callaghan-Pat Tillman Memorial Bridge, July 2, 2009
Date
2009-07-02
Description
Photographer's notes: "A small temporary bridge is built in the gap between the Arizona and Nevada sections of the arch. Someone was the first person to walk from one side to the other. July 2, 2009." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Image
Film transparency of Navajo Bridge, Arizona and Utah, circa 1930s
Date
1930 to 1939
Description
Image of Navajo Bridge spanning the Colorado River shortly after its completion in 1929, printed on nitrate film.
Image
Photograph of an approach bridge on the Nevada side of the Hoover Dam Bypass Project to build the Mike O'Callaghan-Pat Tillman Memorial Bridge, March 5, 2009
Date
2009-03-05
Description
Photographer's notes: "An approach bridge on the Nevada side, part of the Hoover Dam Bypass, March 5, 2009."
Image
Photograph of suspension bridge, Hoover Dam, November 7, 1931.
Date
1931-11-07
Description
Close-up image of suspension bridge across Colorado River at Hoover Dam site, Nov. 7, 1931.
Image
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