Ill 13 / Il 157 over Harding Ditch
Good Condition53 years old6,000 vehicles/day
Location
| State | Illinois |
| County | St. Clair |
| Location | SE Of Jct Il 163&157 |
| Carries | Ill 13 / Il 157 |
| Crosses | Harding Ditch |
| Coordinates | 38.56175, -90.10364 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 114.5 ft (34.9 m) |
| Max Span | 42.3 ft (12.9 m) |
| Deck Width | 33.1 ft (10.1 m) |
| Deck Area | 352.5 sq m |
| Main Spans | 3 |
| Year Built | 1973 (reconstructed 2008) |
Traffic
| Avg Daily Traffic | 6,000 (2023) |
| Truck Traffic | 6% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 082021200000000 |