Old Il 121 over I-55
Fair Condition53 years old1,250 vehicles/day
Location
| State | Illinois |
| County | Logan |
| Location | 2.7 N Il10-1 N Bl 55 |
| Carries | Old Il 121 |
| Crosses | I-55 |
| Coordinates | 40.18163, -89.38723 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 250.0 ft (76.2 m) |
| Max Span | 107.9 ft (32.9 m) |
| Deck Width | 45.9 ft (14 m) |
| Deck Area | 1066.8 sq m |
| Main Spans | 2 |
| Year Built | 1973 |
Traffic
| Avg Daily Traffic | 1,250 (2022) |
| Truck Traffic | 8% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | December 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 054005200000000 |