HDR Inc

of Omaha, Nebaraska
Mike O'Callaghan - Pat Tillman Memorial Bridge (Mohave County, Arizona)
Engineering Firm - Main Span, 2010
Open-spandrel arch bridge over Colorado River on US 93
Open to traffic

Union Street Railroad Bridge (Marion County, Oregon)
Rehab. Consulting Engineers, 1913
Pratt through truss bridge over Willamette River on Pedestrian/Bicycle trail (former Union Pacific Railroad) in Salem
Open to pedestrians