I- 55 WB Stevenson over Western AVE Viaduct
Fair Condition63 years old83,550 vehicles/day
Location
| State | Illinois |
| County | Cook |
| Location | 2.5 M SW Dan Ryan |
| Carries | I- 55 WB Stevenson |
| Crosses | Western AVE Viaduct |
| Coordinates | 41.83321, -87.69159 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 2134.8 ft (650.7 m) |
| Max Span | 117.8 ft (35.9 m) |
| Deck Width | 62.3 ft (19 m) |
| Deck Area | 12363.3 sq m |
| Main Spans | 26 |
| Year Built | 1963 (reconstructed 2000) |
Traffic
| Avg Daily Traffic | 83,550 (2024) |
| Truck Traffic | 7% |
| Lanes On Bridge | 3 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 016002600000000 |