Structure 12442 · St. Clair County, MO
Carries County RD NW 1301 over Trib Of Monegaw CR, S 28 T 39 N R 28 W.
Set by its lowest-rated component: Superstructure and Substructure at 3 of 9.
How ratings work25 ft end to end, longest span 13 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 | St. Clair |
| Location | S 28 T 39 N R 28 W |
| Carries | County RD NW 1301 |
| Crosses | Trib Of Monegaw CR |
| Coordinates | 38.12699, -94.01704 |
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 24.9 ft (7.6 m) |
| Max Span | 13.1 ft (4 m) |
| Deck Width | 14.4 ft (4.4 m) |
| Deck Area | 33.4 sq m |
| Main Spans | 2 |
| Year Built | 1930 |
| Avg Daily Traffic | 15 (2023) |
| Truck Traffic | 10% |
| Lanes On Bridge | 1 |
| Last Inspection | December 2024 |
| Inspection Frequency | Every 12 months |
| Owner | County Highway Agency |
| Historical Significance | Historical significance is not determined |
| Scour Critical | 3 — Scour critical |
| Structure Number | 12442 |
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.