Ky-40 over State Road Fork
Johnson County, Kentucky · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Ky-40 over State Road Fork in Johnson County, Kentucky, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1997, making it 28 years old at the 2025 inventory.
- It carries about 1,530 vehicles a day (traffic count year 2020).
- Its listed owner is the state highway agency.
- It is one of 70 of the 99 inventoried bridges in Johnson County rated fair (70.7%); 3 (3.0%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated October 2021, on a 48-month routine inspection cycle.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (37.8175, -82.89333)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Prestressed concrete single box beam |
| Length | about 32 ft |
| Location | 2.95MI. E. Jct Ky 580 |
| NBI structure number | 058B00080N |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | October 2021 |
| Inspection interval (item 91) | 48 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Kentucky department of transportation.
Busiest bridges in Johnson County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ky-321 over Paint Creek | 1987 | 12,825 | Fair |
| US23N Ramp toUS460 over Paint Creek | 1996 | 8,436 | Fair |
| US460 toUS23S Ramp over Paint Creek | 1996 | 8,436 | Fair |
| Ky-40 over Mudlick Creek | 1983 | 7,801 | Fair |
| Ky-40 over Levisa Fork | 1958 | 7,395 | Fair |
| Ky-321 over Ky-1428 | 1960 | 5,797 | Fair |
All bridges nearby: Johnson County, KY bridge conditions · every bridge in Johnson County · Kentucky bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.