Photographer's notes: "Ironworkers in manbasket travel over the Nevada side bridge deck with the Colorado River below, February 2, 2010." 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: "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: "View from a narrow side canyon used by the lower access road down to the dam. Note: This is one of the few photographs where I supplemented existing light by adding a flash to give the cliff on the right and the road some detail." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "Evening view downstream from the Arizona side of the Black Canyon with the old crane platform (from Hoover Dam construction) below, June 29, 2009." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "Afternoon aerial view of the bridge, dam and Lake Mead, January 14, 2011." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge