Structure 34288 · Harrison County, MO
Carries E 400th ST over Muddy CR, S 25 T 62 N R 27 W.
Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.
How ratings work20 ft end to end. 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 | Harrison |
| Location | S 25 T 62 N R 27 W |
| Carries | E 400th ST |
| Crosses | Muddy CR |
| Coordinates | 40.13367, -93.89558 |
| Material | Concrete |
| Design | Slab |
| Total Length | 20.0 ft (6.1 m) |
| Max Span | 20.0 ft (6.1 m) |
| Deck Width | 19.7 ft (6 m) |
| Deck Area | 36.6 sq m |
| Main Spans | 1 |
| Year Built | 2011 |
| Avg Daily Traffic | 25 (2024) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
| Last Inspection | January 2024 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Historical significance is not determined |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 34288 |
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.