County Rd 415 over Prairie Fk
Howard County, Missouri · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- County Rd 415 over Prairie Fk in Howard County, Missouri, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1910 and reconstructed in 1987, making it 115 years old at the 2025 inventory.
- It carries about 100 vehicles a day (traffic count year 2024).
- Its listed owner is the county highway agency.
- It is one of 10 of the 134 inventoried bridges in Howard County rated poor (7.5%); 10 (7.5%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated February 2024, on a 24-month routine inspection cycle.
- 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 → (39.06472, -92.55303)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 4 | 4 | Poor condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 26 ft |
| Location | S 1 T 49 N R 15 W |
| NBI structure number | 14892 |
| Condition class | Poor |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | February 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 7: scour countermeasures installed |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Missouri department of transportation.
Busiest bridges in Howard County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Mo 240 E over Bonne Femme CR | 2011 | 5,116 | Good |
| Mo 240 E over Bonne Femme CR Ovr | 2011 | 5,116 | Good |
| Mo 5 S over Adams Fk CR | 2001 | 4,694 | Good |
| Mo 5 S over Sulphur CR | 1926 | 4,516 | Fair |
| US 40 E over Moniteau Creek | 1941 | 4,397 | Fair |
| Mo 240 E over Pipes Br | 1926 | 2,701 | Fair |
All bridges nearby: Howard County, MO bridge conditions · every bridge in Howard County · Missouri bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.