Structure 51500100000000 · Lawrence County, IL
Carries Fas-807 (ch-6) over Little Bonpas Creek, 4 Mi S Sumner.
A culvert 23 ft across with 3 openings. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights, so those are drawn as typical for a culvert.
| State | Illinois |
| County | Lawrence |
| Location | 4 Mi S Sumner |
| Carries | Fas-807 (ch-6) |
| Crosses | Little Bonpas Creek |
| Coordinates | 38.65329, -87.86356 |
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 23.3 ft (7.1 m) |
| Max Span | 7.5 ft (2.3 m) |
| Deck Area | 39.0 sq m |
| Main Spans | 3 |
| Year Built | 1939 |
| Avg Daily Traffic | 1,100 (2021) |
| Truck Traffic | 17% |
| Lanes On Bridge | 2 |
| Last Inspection | January 2025 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 051500100000000 |
Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."
A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.