Structure 344 · Jackson County, MO
Carries Is 70 W over Cst Mulberry ST Madis, S 6 T 50 N R 34 W.
4,336 ft end to end, longest span 128 ft: about 12 football fields. 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 | Jackson |
| Location | S 6 T 50 N R 34 W |
| Carries | Is 70 W |
| Crosses | Cst Mulberry ST Madis |
| Coordinates | 39.10725, -94.59938 |
| Material | Prestressed Concrete Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 4336.0 ft (1321.6 m) |
| Max Span | 128.3 ft (39.1 m) |
| Deck Width | 47.9 ft (14.6 m) |
| Deck Area | 19295.4 sq m |
| Main Spans | 90 |
| Year Built | 1960 (reconstructed 1992) |
| Avg Daily Traffic | 37,692 (2024) |
| Truck Traffic | 18% |
| Lanes On Bridge | 3 |
| Lanes Under Bridge | 9 |
| Last Inspection | April 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | Not applicable |
| Structure Number | 344 |
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.