Structure 4309900000000 · Boone County, IL
Carries Blaine RD over Beaver Creek, 3.0 Mi NW Capron.
A culvert 22 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 | Boone |
| Location | 3.0 Mi NW Capron |
| Carries | Blaine RD |
| Crosses | Beaver Creek |
| Coordinates | 42.44174, -88.76415 |
| Material | Steel |
| Design | Culvert |
| Total Length | 22.0 ft (6.7 m) |
| Max Span | 5.9 ft (1.8 m) |
| Deck Area | 57.0 sq m |
| Main Spans | 3 |
| Year Built | 2018 |
| Avg Daily Traffic | 50 (2018) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
| Last Inspection | January 2023 |
| 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 | 004309900000000 |
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.