Structure 12406 · Lawrence County, MO
Carries County RD 1030 over Coon CR, S 4 T 29 N R 28 W.
25 ft end to end, longest span 12 ft. 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 or the layout of the shorter spans, so those are drawn as typical for a slab bridge.
| State | Missouri |
| County | Lawrence |
| Location | S 4 T 29 N R 28 W |
| Carries | County RD 1030 |
| Crosses | Coon CR |
| Coordinates | 37.27621, -93.99932 |
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 24.9 ft (7.6 m) |
| Max Span | 12.1 ft (3.7 m) |
| Deck Width | 24.0 ft (7.3 m) |
| Deck Area | 55.5 sq m |
| Main Spans | 2 |
| Year Built | 1950 |
| Avg Daily Traffic | 40 (2023) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
| Last Inspection | March 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 | 12406 |
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.