Ky-550 over Left Frk Troublesome Crk

Knott County, Kentucky · rated Fair in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

• Ky-550 over Left Frk Troublesome Crk in Knott County, Kentucky, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
• Its lowest-rated component is the superstructure, 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 1,529 vehicles a day (traffic count year 2018).
• 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 → (37.35333, -82.93889)

Component ratings

Bridge details

Source: FHWA National Bridge Inventory, 2025 data as reported by the Kentucky department of transportation.

Busiest bridges in Knott County

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.