Photographer's notes: "View of the Arizona side arch foundation and piers, late afternoon, October 21, 2009." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "Aerial view, April 10, 2012. Note: I was commissioned to photograph over the bridge and dam in April 2012, more than a year after my project was complete." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "Aerial view, April 10, 2012. Note: I was commissioned to photograph over the bridge and dam in April 2012, more than a year after my project was complete." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "Upstream view of the complete and open bridge at dusk, January 12, 2011." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "Upstream view of the complete and open bridge at dusk, January 12, 2011." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "Upstream view of the complete and open bridge at dusk, January 12, 2011." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "Aerial view of the bridge and dam with the bridge's shadow on the dam's face, January 14, 2011." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "Ironworkers ascend a rib of the arch on the Nevada side to start their evening shift." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge