WB I-74 over Mackinaw River
Poor Condition62 years old14,200 vehicles/day
Location
| State | Illinois |
| County | Woodford |
| Location | 1.26 Mi E Of Ill 117 |
| Carries | WB I-74 |
| Crosses | Mackinaw River |
| Coordinates | 40.61499, -89.25330 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 6 (Satisfactory) |
| Superstructure | 3 (Serious) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 421.9 ft (128.6 m) |
| Max Span | 117.1 ft (35.7 m) |
| Deck Width | 41.3 ft (12.6 m) |
| Deck Area | 1620.4 sq m |
| Main Spans | 4 |
| Year Built | 1964 (reconstructed 1998) |
Traffic
| Avg Daily Traffic | 14,200 (2023) |
| Truck Traffic | 18% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 12 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 102000100000000 |