County Rd 524 over Hickory CR
Audrain County, Missouri · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- County Rd 524 over Hickory CR in Audrain County, Missouri, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1970 and reconstructed in 2003, making it 55 years old at the 2025 inventory.
- It carries about 100 vehicles a day (traffic count year 2023).
- Its listed owner is the county highway agency.
- It is one of 13 of the 315 inventoried bridges in Audrain County rated poor (4.1%); 13 (4.1%) are rated poor.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (39.23453, -91.55319)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 4 | Poor condition |
| Superstructure | 5 | Fair condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Steel through truss |
| Length | about 60 ft |
| Location | S 2 T 51 N R 6 W |
| NBI structure number | 24596 |
| Condition class | Poor |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Missouri department of transportation.
Busiest bridges in Audrain County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Mo 15 S over Hamilton CR | 1929 | 11,448 | Fair |
| Mo 15 S over US 54 | 1991 | 8,255 | Fair |
| Clark St over NS RR | 1995 | 8,000 | Fair |
| US 54 E over W Fork Bean CR | 1932 | 6,929 | Fair |
| Bu 54 E over C & A Lake | 1922 | 6,481 | Fair |
| Bu 54 E over S. Fork Salt River | 1924 | 6,481 | Fair |
All bridges nearby: Audrain County, MO bridge conditions · every bridge in Audrain County · Missouri bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.