Structure 81501900000000 · Rock Island County, IL
Carries Ch 18 over S Br Mill CR, 7.0 Mi S Of Milan.
A culvert 22 ft across with 2 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 | Rock Island |
| Location | 7.0 Mi S Of Milan |
| Carries | Ch 18 |
| Crosses | S Br Mill CR |
| Coordinates | 41.34157, -90.55194 |
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 22.0 ft (6.7 m) |
| Max Span | 10.8 ft (3.3 m) |
| Deck Area | 73.7 sq m |
| Main Spans | 2 |
| Year Built | 1986 |
| Avg Daily Traffic | 1,200 (2020) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
| Last Inspection | November 2022 |
| Inspection Frequency | Every 48 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 081501900000000 |
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.