Hanson Professional Services Inc.

of Springfield, Illinois
BNSF - Four Mile Bridge (2002) (Wapello County, Iowa)
Warren through truss with all verticals bridge over Des Moines River on BNSF Railway
Open to traffic

Clark Bridge (Madison County, Illinois)
Built 1994
Cable-stayed bridge over the Mississippi River on US 67 at Alton
Open to four lanes of traffic