Photographer's notes: "Roadway on Nevada side bridge approach, Hoover Dam Bypass, April 29, 2009."

Photographer's notes: "Cable stays supported arch construction until the arch was complete. Formwork at the end of the arch segment created the framework for pouring each new concrete section." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge

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: "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: "During construction, drivers saw this view as they rounded the Nevada hairpin turn of the old highway. Note: This is one of the few hand held nighttime photographs and the only one taken from a car while in motion. At the time, I did not have permission to stop and photograph from this location." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge

Photographer's note: "Construction within the central power block, on site photo, Crescent Dunes Solar, near Tonopah, Nevada, USA."
Photographer's assigned keywords: "110 megawatts; CSP; Concentrated Solar Energy; Concentrated Solar Power; Crescent Dunes; NV; Nevada; Solar Reserve; SolarReserve; Tonopah; concentrated solar thermal; green energy; ground-based photo; molten salt; on-site; renewable energy; storage; tower."