Fap-821 (ill-15) over Big Muddy Overflow
Poor Condition103 years old5,350 vehicles/day
Location
| State | Illinois |
| County | Jefferson |
| Location | 9 Mi E Wash Co LN |
| Carries | Fap-821 (ill-15) |
| Crosses | Big Muddy Overflow |
| Coordinates | 38.30958, -88.98067 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 2 (Critical) |
| Superstructure | 2 (Critical) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 33.1 ft (10.1 m) |
| Max Span | 32.2 ft (9.8 m) |
| Deck Width | 33.5 ft (10.2 m) |
| Deck Area | 103.0 sq m |
| Main Spans | 1 |
| Year Built | 1923 (reconstructed 1971) |
Traffic
| Avg Daily Traffic | 5,350 (2023) |
| Truck Traffic | 7% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 225 |
| Inspection Frequency | Every 12 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 041002400000000 |