Ill 177 over Trib Rayhills Slough
Good Condition32 years old2,000 vehicles/day
Location
| State | Illinois |
| County | St. Clair |
| Location | 4.5m E Of Il 4 |
| Carries | Ill 177 |
| Crosses | Trib Rayhills Slough |
| Coordinates | 38.48034, -89.71129 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 7 (Good) |
| Culvert | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 25.9 ft (7.9 m) |
| Max Span | 11.2 ft (3.4 m) |
| Deck Area | 60.0 sq m |
| Main Spans | 2 |
| Year Built | 1994 |
Traffic
| Avg Daily Traffic | 2,000 (2023) |
| Truck Traffic | 12% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 082240400000000 |