I- 55 WB Elevated over S Br Chicago River

Fair Condition63 years old75,500 vehicles/day

Location

StateIllinois
CountyCook
Location1.1 M SW I-94
CarriesI- 55 WB Elevated
CrossesS Br Chicago River
Coordinates41.83952, -87.66349

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure7 (Good)
Substructure7 (Good)
Channel/Waterway8 (Very Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length387.1 ft (118 m)
Max Span106.3 ft (32.4 m)
Deck Width76.1 ft (23.2 m)
Deck Area2737.6 sq m
Main Spans4
Year Built1963 (reconstructed 2000)

Traffic

Avg Daily Traffic75,500 (2024)
Truck Traffic8%
Lanes On Bridge3

Inspection & Ownership

Last Inspection823
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number016108500000000

Nearby Bridges