Photographer's notes: "Ironworkers were transported in manbaskets via a high line crane system to the end of the Arizona arch segment." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "Road bed shoulder stabilization and rail guards, Nevada side of Hoover Dam Bypass, April 29, 2009." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "Downstream view at dusk of the bridge and Black Canyon from an employee parking lot on the Nevada side." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "View of the Arizona side, arch construction was supported by temporary pylons and cable stays." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "Ironworkers climbed up the Nevada side arch segment each morning to start work." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "Ironworkers on Arch, April 30, 2009 - Ironworkers climbed up the Nevada side arch segment each morning to start work." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Early excavation for substation, operations center, construction block, and Unit 1 power block with Primm Valley Golf Club and Interstate 15 in the distance