I 57 SB over M. Fork Big Muddy River
Good Condition2 years old18,600 vehicles/day
Location
| State | Illinois |
| County | Franklin |
| Location | 1.5 Mi N W Frankfort |
| Carries | I 57 SB |
| Crosses | M. Fork Big Muddy River |
| Coordinates | 37.92859, -88.94657 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 9 (Excellent) |
| Substructure | 9 (Excellent) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 357.6 ft (109 m) |
| Max Span | 133.9 ft (40.8 m) |
| Deck Width | 63.6 ft (19.4 m) |
| Deck Area | 2114.6 sq m |
| Main Spans | 3 |
| Year Built | 2024 |
Traffic
| Avg Daily Traffic | 18,600 (2023) |
| Truck Traffic | 39% |
| Lanes On Bridge | 3 |
Inspection & Ownership
| Last Inspection | December 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 028008800000000 |