Ill 163 over N Prairie Dupont CR
Good Condition67 years old3,150 vehicles/day
Location
| State | Illinois |
| County | St. Clair |
| Location | 2.6 M S Jct Ill 157 |
| Carries | Ill 163 |
| Crosses | N Prairie Dupont CR |
| Coordinates | 38.52424, -90.10502 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 7 — Countermeasures installed |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 118.1 ft (36 m) |
| Max Span | 62.7 ft (19.1 m) |
| Deck Width | 35.1 ft (10.7 m) |
| Deck Area | 385.2 sq m |
| Main Spans | 2 |
| Year Built | 1959 (reconstructed 1990) |
Traffic
| Avg Daily Traffic | 3,150 (2023) |
| Truck Traffic | 6% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 823 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 082010400000000 |