Structure 22383 · Jefferson County, MO
Carries Boyd Branch RD over Boyd CR, S 34 T 39 N R 5 E.
A culvert 24 ft across. 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 | Jefferson |
| Location | S 34 T 39 N R 5 E |
| Carries | Boyd Branch RD |
| Crosses | Boyd CR |
| Coordinates | 38.04514, -90.45710 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 24.0 ft (7.3 m) |
| Max Span | 22.0 ft (6.7 m) |
| Deck Width | 25.3 ft (7.7 m) |
| Deck Area | 56.2 sq m |
| Main Spans | 1 |
| Year Built | 1940 (reconstructed 1970) |
| Avg Daily Traffic | 175 (2023) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
| Last Inspection | January 2025 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 5 — Stable for scour |
| Structure Number | 22383 |
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.