Structure 35643 · Audrain County, MO
Carries County RD 472 over Drain Dtch, S 10 T 52 N R 7 W.
A culvert 21 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 | Missouri |
| County | Audrain |
| Location | S 10 T 52 N R 7 W |
| Carries | County RD 472 |
| Crosses | Drain Dtch |
| Coordinates | 39.29611, -91.68861 |
| Material | Aluminum/Wrought Iron/Cast Iron |
| Design | Culvert |
| Total Length | 20.7 ft (6.3 m) |
| Max Span | 8.5 ft (2.6 m) |
| Deck Width | 25.9 ft (7.9 m) |
| Deck Area | 49.8 sq m |
| Main Spans | 2 |
| Year Built | 2016 |
| Avg Daily Traffic | 35 (2023) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
| Last Inspection | May 2023 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Historical significance is not determined |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 35643 |
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.