I-55 Busn Loop over Norfolk Southern Railway
Poor Condition86 years old25,000 vehicles/day
Location
| State | Illinois |
| County | McLean |
| Location | 0.49 Mi E Of US 51 |
| Carries | I-55 Busn Loop |
| Crosses | Norfolk Southern Railway |
| Coordinates | 40.45937, -88.98330 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 6 (Satisfactory) |
| Superstructure | 4 (Poor) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 306.1 ft (93.3 m) |
| Max Span | 65.6 ft (20 m) |
| Deck Width | 59.4 ft (18.1 m) |
| Deck Area | 1688.7 sq m |
| Main Spans | 5 |
| Year Built | 1940 (reconstructed 1987) |
Traffic
| Avg Daily Traffic | 25,000 (2023) |
| Truck Traffic | 5% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 12 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 057006400000000 |