Swanson RD over I-90

Fair Condition68 years old1,950 vehicles/day

Location

StateIllinois
CountyWinnebago
Location1.5 Mi N Ill 173
CarriesSwanson RD
CrossesI-90
Coordinates42.38890, -88.97464

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure6 (Satisfactory)
Substructure7 (Good)
Scour CriticalNot applicable

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length232.0 ft (70.7 m)
Max Span65.9 ft (20.1 m)
Deck Width30.2 ft (9.2 m)
Deck Area650.4 sq m
Main Spans4
Year Built1958

Traffic

Avg Daily Traffic1,950 (2022)
Truck Traffic3%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last Inspection623
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Structure Number101992100000000

Nearby Bridges