I-55 (nb) over Lake Springfield
Fair Condition24 years old21,900 vehicles/day
Location
| State | Illinois |
| County | Sangamon |
| Location | 3m S I-72 |
| Carries | I-55 (nb) |
| Crosses | Lake Springfield |
| Coordinates | 39.69638, -89.64240 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 722.4 ft (220.2 m) |
| Max Span | 158.1 ft (48.2 m) |
| Deck Width | 62.0 ft (18.9 m) |
| Deck Area | 4161.8 sq m |
| Main Spans | 5 |
| Year Built | 2002 |
Traffic
| Avg Daily Traffic | 21,900 (2023) |
| Truck Traffic | 22% |
| Lanes On Bridge | 3 |
Inspection & Ownership
| Last Inspection | 624 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 084050000000000 |