Photographer's notes: "Detail of arch and piers on Nevada side of arch, evening, November 24, 2009." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge

Photographer's notes: "A precast pier segment is "flown" by the highline crane to its intended position for installation, November 24, 2009." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge

Photographer's notes: "Detail of arch on Nevada side, November 24, 2009." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge

Photographer's notes: "The final pier segment is brought into position on the southern pier near the Nevada bridge deck, November 24, 2009." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge

Photographer's notes: "Only one segment remained on one pier to complete the pier assembly for the bridge. The construction crew "needed a few parts" before they could attach the last segment, so I was unable to document this pier's completion. November 24, 2009." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge

Photographer's notes: "Tub girders on the Nevada side bridge deck, February 2, 2010. Note: This was one of the only times I was allowed on the bridge deck while girders were present and work was underway." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge

Photographer's notes: "Tub girder, tool box and ironworker shadow on the Nevada side bridge deck, February 2, 2010." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge