Ill 166 over S Fork Saline River
Good Condition35 years old2,100 vehicles/day
Location
| State | Illinois |
| County | Williamson |
| Location | 3.6 Mi S Of Ill 13 |
| Carries | Ill 166 |
| Crosses | S Fork Saline River |
| Coordinates | 37.67834, -88.86031 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 7 (Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 121.1 ft (36.9 m) |
| Max Span | 69.2 ft (21.1 m) |
| Deck Width | 35.1 ft (10.7 m) |
| Deck Area | 394.8 sq m |
| Main Spans | 2 |
| Year Built | 1991 |
Traffic
| Avg Daily Traffic | 2,100 (2023) |
| Truck Traffic | 11% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 223 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 100007000000000 |