Photographer's notes: "A worker climbs up a stairwell of the Nevada side arch construction, May 20, 2009." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "Evening aerial view of the dam and bridge. Twelve tub (box) girders spanned the central pier caps of the bridge forming part of the substructure for the roadbed. Note: This photo was taken well after sunset and was only possible because of the state of digital technology in 2010." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "Evening aerial view of the dam and bridge. Twelve tub (box) girders spanned the central pier caps of the bridge forming part of the substructure for the roadbed. Note: This photo was taken well after sunset and was only possible because of the state of digital technology in 2010." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "View of the bridge, dam, and Lake Mead from the top of Sugarloaf on the Arizona side, July 30, 2010." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "View of the bridge, dam, and Lake Mead from the top of Sugarloaf on the Arizona side, July 30, 2010." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "Ironworkers in Manbaskets, April 29, 2009 - Ironworkers were transported in manbaskets via a high line crane system to the end of the Arizona arch segment." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge