I- 55 WB Stevenson over Western AVE Viaduct

Fair Condition63 years old83,550 vehicles/day

Location

StateIllinois
CountyCook
Location2.5 M SW Dan Ryan
CarriesI- 55 WB Stevenson
CrossesWestern AVE Viaduct
Coordinates41.83321, -87.69159

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure7 (Good)
Substructure7 (Good)
Scour CriticalNot applicable

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length2134.8 ft (650.7 m)
Max Span117.8 ft (35.9 m)
Deck Width62.3 ft (19 m)
Deck Area12363.3 sq m
Main Spans26
Year Built1963 (reconstructed 2000)

Traffic

Avg Daily Traffic83,550 (2024)
Truck Traffic7%
Lanes On Bridge3
Lanes Under Bridge4

Inspection & Ownership

Last Inspection924
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number016002600000000

Nearby Bridges