Ill 29 over Mackinaw R Overflow
Fair Condition105 years old2,250 vehicles/day
Location
| State | Illinois |
| County | Tazewell |
| Location | 2 Mi N Greenvalley |
| Carries | Ill 29 |
| Crosses | Mackinaw R Overflow |
| Coordinates | 40.43896, -89.65278 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 63.0 ft (19.2 m) |
| Max Span | 29.9 ft (9.1 m) |
| Deck Width | 35.8 ft (10.9 m) |
| Deck Area | 209.3 sq m |
| Main Spans | 2 |
| Year Built | 1921 (reconstructed 1960) |
Traffic
| Avg Daily Traffic | 2,250 (2023) |
| Truck Traffic | 16% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 723 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 090005200000000 |