Photographer's notes: "A view of the bridge, dam and Lake Mead at dusk. Pier and pier cap construction can be seen along the length of the arch." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "Aerial view of the winding original road descending to the dam on the Arizona side with the new bypass road under construction in the upper right, February 3, 2010." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "Upstream view of the bridge and dam. The growing arch segments on the Nevada and Arizona sides of the canyon moved toward their rendezvous over the Colorado River." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "A return to the view of the bridge from the dam sidewalk first taken in April 2009. January 13, 2011." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "A return to the view of the bridge from the dam sidewalk first taken in April 2009. January 13, 2011." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "With the bridge complete and open, the bridge, dam and lake now share the Black Canyon." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "With the bridge complete and open, the bridge, dam and lake now share the Black Canyon. January 14, 2011. Note: This is the uncropped version of this photograph. I chose to crop out the horizon for use in the book and exhibition." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge