Ky-550 over Terry Fork
Knott County, Kentucky · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Ky-550 over Terry Fork in Knott County, Kentucky, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1932, making it 93 years old at the 2025 inventory.
- It carries about 961 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 69 of the 141 inventoried bridges in Knott County rated fair (48.9%); 14 (9.9%) are rated poor.
- 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 → (37.38222, -82.88472)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 5 | Fair condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 24 ft |
| Location | 2.9 MI S of JCT KY 1087 |
| NBI structure number | 060B00005N |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Kentucky department of transportation.
Busiest bridges in Knott County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ky-160 over R Frk Troublesome Crk | 1941 | 7,613 | Fair |
| Ky-160 over Lt Fk Troublesome Creek | 1978 | 6,705 | Fair |
| Ky-899 over Rt Fk Troublesome Crk | 1998 | 4,811 | Good |
| Ky-15 over Carr Fork Lake | 1972 | 4,778 | Fair |
| Ky-15 over Red Oak Branch | 1972 | 4,778 | Good |
| Ky-15 over Carr Fork Reservoir | 1972 | 4,604 | Fair |
All bridges nearby: Knott County, KY bridge conditions · every bridge in Knott County · Kentucky bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.