Structure 9412 · Polk County, MO
Carries RT J S over Brush CR, S 34 T 34 N R 21 W.
A culvert 24 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 | Missouri |
| County | Polk |
| Location | S 34 T 34 N R 21 W |
| Carries | RT J S |
| Crosses | Brush CR |
| Coordinates | 37.63465, -93.21272 |
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 23.6 ft (7.2 m) |
| Max Span | 7.2 ft (2.2 m) |
| Deck Width | 26.2 ft (8 m) |
| Deck Area | 57.6 sq m |
| Main Spans | 3 |
| Year Built | 1939 (reconstructed 2022) |
| Avg Daily Traffic | 363 (2024) |
| Truck Traffic | 22% |
| Lanes On Bridge | 2 |
| Last Inspection | November 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 7 — Countermeasures installed |
| Structure Number | 9412 |
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.