Photographer's notes: "View from the dam sidewalk downstream toward the bridge, before dawn, July 2, 2009." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "A small temporary bridge is built in the gap between the Arizona and Nevada sections of the arch. Someone was the first person to walk from one side to the other. July 2, 2009." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "Final concrete pour, which formed the keystone of the arch and completed its structure. Photographed from the Arizona side north or the bridge. August 10, 2009." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "Final concrete pour, which formed the keystone of the arch and completed its structure. Photographed from the Arizona side north or the bridge. August 10, 2009." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "Final concrete pour, which formed the keystone of the arch and completed its structure. Photographed from the Arizona side north or the bridge. August 10, 2009." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "Final concrete pour, which formed the keystone of the arch and completed its structure. Note: This photograph required a very last minute rush trip from Santa Fe to the Bridge. I got the call in the early afternoon and arrived to shoot just at sunset." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "Workers arrive via highline crane and manbasket to start their shift on the structurally complete arch, morning, view from Arizona side, September 9, 2009." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "Aerial view of the completed arch before construction of the piers (columns) began. From the air, the arch appeared delicate and fragile. September 10, 2009." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "Aerial view of the dam and completed bridge arch before construction of the piers (columns) began. From the air, the arch appeared delicate and fragile. September 10, 2009." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "Aerial view - The winding original road across the dam play off the arch of the new bridge. Note that the small bridge of the Arizona spillway echos the eventual form of the finished bridge, September 10, 2009." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge