Ill 161 over Richland Creek
Good Condition39 years old19,600 vehicles/day
Location
| State | Illinois |
| County | St. Clair |
| Location | .5 Mi E Ill 159 |
| Carries | Ill 161 |
| Crosses | Richland Creek |
| Coordinates | 38.53338, -89.97592 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 7 — Countermeasures installed |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 191.3 ft (58.3 m) |
| Max Span | 78.1 ft (23.8 m) |
| Deck Width | 73.8 ft (22.5 m) |
| Deck Area | 1311.8 sq m |
| Main Spans | 3 |
| Year Built | 1987 |
Traffic
| Avg Daily Traffic | 19,600 (2023) |
| Truck Traffic | 2% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 423 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 082027800000000 |