Structure 12308 · Barton County, MO
Carries NW 150th LN over Trib Of Drywood CR, S 8 T 33 N R 33 W.
Set by its lowest-rated component: Superstructure and Substructure at 6 of 9.
How ratings work25 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 multi-beam bridge.
| State | Missouri |
| County | Barton |
| Location | S 8 T 33 N R 33 W |
| Carries | NW 150th LN |
| Crosses | Trib Of Drywood CR |
| Coordinates | 37.63310, -94.56743 |
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 24.9 ft (7.6 m) |
| Max Span | 12.1 ft (3.7 m) |
| Deck Width | 16.1 ft (4.9 m) |
| Deck Area | 37.2 sq m |
| Main Spans | 2 |
| Year Built | 1940 |
| Avg Daily Traffic | 25 (2023) |
| Truck Traffic | 10% |
| Lanes On Bridge | 1 |
| Last Inspection | March 2023 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Historical significance is not determined |
| Scour Critical | 5 — Stable for scour |
| Structure Number | 12308 |
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.