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: "A solitary ladder extends from the arch to a walkway between tub girders below the road deck, April 13, 2010." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "Foundation of the arch on the Arizona side of the Black Canyon, April 13, 2010." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "Evening bridge deck construction. On the Nevada side, four girders remain to be installed, two of which are on the far bridge deck. The last four tub girders were installed on 15 April 2010." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "View from the river up to the Arizona side. Deck construction was still in progress. Note: This was the only time I was given access to this particular point of view on the Arizona side beneath the bridge." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "View from the river up to the Arizona side. Deck construction was still in progress. April 14, 2010." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge