Tr 255a over Br Mackinaw River
Fair Condition66 years old75 vehicles/day
Location
| State | Illinois |
| County | McLean |
| Location | 4.0 Mi S Colfax |
| Carries | Tr 255a |
| Crosses | Br Mackinaw River |
| Coordinates | 40.50029, -88.61190 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Slab |
| Total Length | 32.2 ft (9.8 m) |
| Max Span | 27.9 ft (8.5 m) |
| Deck Width | 28.5 ft (8.7 m) |
| Deck Area | 85.3 sq m |
| Main Spans | 1 |
| Year Built | 1960 |
Traffic
| Avg Daily Traffic | 75 (2024) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 823 |
| Inspection Frequency | Every 24 months |
| Owner | Town/Township Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 057502200000000 |