Fai 255 over Prairie Lake Ditch
Good Condition43 years old35,700 vehicles/day
Location
| State | Illinois |
| County | St. Clair |
| Location | Under S Main ST Dupo |
| Carries | Fai 255 |
| Crosses | Prairie Lake Ditch |
| Coordinates | 38.50901, -90.20458 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 8 (Very Good) |
| Culvert | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 31.8 ft (9.7 m) |
| Max Span | 11.2 ft (3.4 m) |
| Deck Area | 200.8 sq m |
| Main Spans | 3 |
| Year Built | 1983 |
Traffic
| Avg Daily Traffic | 35,700 (2023) |
| Truck Traffic | 18% |
| Lanes On Bridge | 6 |
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 | 082202000000000 |