Ill 143 over Cahokia Creek
Fair Condition89 years old7,950 vehicles/day
Location
| State | Illinois |
| County | Madison |
| Location | NW Ill 159 |
| Carries | Ill 143 |
| Crosses | Cahokia Creek |
| Coordinates | 38.82438, -89.97461 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 7 — Countermeasures installed |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 196.5 ft (59.9 m) |
| Max Span | 77.1 ft (23.5 m) |
| Deck Width | 55.4 ft (16.9 m) |
| Deck Area | 1012.3 sq m |
| Main Spans | 3 |
| Year Built | 1937 (reconstructed 1983) |
Traffic
| Avg Daily Traffic | 7,950 (2023) |
| Truck Traffic | 5% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 060008300000000 |