Structure 8501 · Douglas County, MO
Carries RT Y E over Cowskin CR, S 8 T 26 N R 16 W.
A culvert 24 ft across with 8 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 | Douglas |
| Location | S 8 T 26 N R 16 W |
| Carries | RT Y E |
| Crosses | Cowskin CR |
| Coordinates | 36.96513, -92.72584 |
| Material | Steel |
| Design | Culvert |
| Total Length | 24.0 ft (7.3 m) |
| Max Span | 2.0 ft (0.6 m) |
| Deck Width | 24.0 ft (7.3 m) |
| Deck Area | 53.3 sq m |
| Main Spans | 8 |
| Year Built | 1957 |
| Avg Daily Traffic | 1,340 (2024) |
| Truck Traffic | 6% |
| Lanes On Bridge | 2 |
| Last Inspection | February 2025 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 8501 |
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.