I-55 (nb) over Illinois Central Rr
Fair Condition55 years old17,850 vehicles/day
Location
| State | Illinois |
| County | Sangamon |
| Location | 1m N Glenarm Intchg |
| Carries | I-55 (nb) |
| Crosses | Illinois Central Rr |
| Coordinates | 39.63032, -89.64661 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 5 (Fair) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 339.9 ft (103.6 m) |
| Max Span | 109.6 ft (33.4 m) |
| Deck Width | 58.1 ft (17.7 m) |
| Deck Area | 1833.7 sq m |
| Main Spans | 2 |
| Year Built | 1971 (reconstructed 1979) |
Traffic
| Avg Daily Traffic | 17,850 (2023) |
| Truck Traffic | 25% |
| Lanes On Bridge | 3 |
Inspection & Ownership
| Last Inspection | 523 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 084011200000000 |