Black Lane over Harding Ditch
Good Condition13 years old2,500 vehicles/day
Location
| State | Illinois |
| County | St. Clair |
| Location | 1.25 Mi. N Of Bunkum |
| Carries | Black Lane |
| Crosses | Harding Ditch |
| Coordinates | 38.64028, -90.04691 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 82.0 ft (25 m) |
| Deck Width | 40.4 ft (12.3 m) |
| Deck Area | 307.5 sq m |
| Main Spans | 1 |
| Year Built | 2013 |
Traffic
| Avg Daily Traffic | 2,500 (2023) |
| Truck Traffic | 6% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 223 |
| Inspection Frequency | Every 48 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 082310900000000 |