Photographer's notes: "A line of floats crosses Lake Mead as a boundary for boats getting near the dam, February 3, 2010. Note: Old photos from previous decades show people in boats water skiing, fishing, and even touching the dam."
Photographer's notes: "For part of the year, the late afternoon sun now casts the bridge's shadow onto the face of Hoover Dam." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "Evening view of the Arizona arch segment from the dam. Transmission towers between the dam and bridge support power lines coming from the powerhouse out of the canyon." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "A view down the Colorado River from the top of the dam's powerhouse, July 27, 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