Il 177/160 over Kaskaskia Overflow
Fair Condition29 years old1,750 vehicles/day
Location
| State | Illinois |
| County | Washington |
| Location | 3.7m W Of Okawville |
| Carries | Il 177/160 |
| Crosses | Kaskaskia Overflow |
| Coordinates | 38.44949, -89.62576 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 9 (Excellent) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 531.5 ft (162 m) |
| Max Span | 87.9 ft (26.8 m) |
| Deck Width | 35.1 ft (10.7 m) |
| Deck Area | 1733.4 sq m |
| Main Spans | 6 |
| Year Built | 1997 |
Traffic
| Avg Daily Traffic | 1,750 (2023) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 095007400000000 |