Photographer's notes: "Sunrise from the top of Sugarloaf. In the summer months, the sunrise is far enough north to create wonderful shadows on the Nevada side walls of Black Canyon. July 30, 2010." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
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: "Pier caps ready to receive tub girders, February 2, 2010. Note: My understanding is that some "shaving" of the concrete pier cap was necessary for proper fit of some girders." 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