Ill 37 over M Fork Big Muddy R
Fair Condition88 years old5,500 vehicles/day
Location
| State | Illinois |
| County | Franklin |
| Location | 0.5 Mi N W Frankfort |
| Carries | Ill 37 |
| Crosses | M Fork Big Muddy R |
| Coordinates | 37.91665, -88.93315 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 367.5 ft (112 m) |
| Max Span | 74.8 ft (22.8 m) |
| Deck Width | 34.1 ft (10.4 m) |
| Deck Area | 1164.8 sq m |
| Main Spans | 6 |
| Year Built | 1938 (reconstructed 1987) |
Traffic
| Avg Daily Traffic | 5,500 (2023) |
| Truck Traffic | 6% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 125 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 028003400000000 |