I-55 SB over Mackinaw River
Fair Condition53 years old11,900 vehicles/day
Location
| State | Illinois |
| County | McLean |
| Location | 2 Mi SW Of Lexington |
| Carries | I-55 SB |
| Crosses | Mackinaw River |
| Coordinates | 40.62999, -88.81597 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 333.0 ft (101.5 m) |
| Max Span | 92.8 ft (28.3 m) |
| Deck Width | 42.0 ft (12.8 m) |
| Deck Area | 1299.2 sq m |
| Main Spans | 3 |
| Year Built | 1973 |
Traffic
| Avg Daily Traffic | 11,900 (2023) |
| Truck Traffic | 32% |
| Lanes On Bridge | 2 |
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 | 057016700000000 |