Tr 290 over Mackinaw River
Fair Condition53 years old225 vehicles/day
Location
| State | Illinois |
| County | McLean |
| Location | 4.8 Mi SW Gridley |
| Carries | Tr 290 |
| Crosses | Mackinaw River |
| Coordinates | 40.67886, -88.94225 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 5 (Fair) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 237.9 ft (72.5 m) |
| Max Span | 63.0 ft (19.2 m) |
| Deck Width | 28.2 ft (8.6 m) |
| Deck Area | 623.5 sq m |
| Main Spans | 4 |
| Year Built | 1973 |
Traffic
| Avg Daily Traffic | 225 (2024) |
| Truck Traffic | 33% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 324 |
| Inspection Frequency | Every 24 months |
| Owner | Town/Township Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 057461400000000 |