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Jonar Knob Rd over Buffalo Creek

Marion County, Kentucky · rated Good in the 2025 National Bridge Inventory

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

Jonar Knob Rd over Buffalo Creek in Marion County, Kentucky, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
It was built in 1992, making it 33 years old at the 2025 inventory.
It carries about 15 vehicles a day (traffic count year 2010).
Its listed owner is the county highway agency.
It is one of 73 of the 149 inventoried bridges in Marion County rated good (49.0%); 13 (8.7%) are rated poor.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings


Structure	Prestressed concrete multiple box beam
Length	about 32 ft
Location	.1 MI S of Buffalo Rd
NBI structure number	078C00094N
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
US-68 over Hardins Creek	1927	15,312	Fair
Ky-55 over Cartwright Creek	1980	10,391	Fair
Ky 2154 over Hardins Creek	2008	7,853	Good
US-68 over Rolling Fork	1982	6,746	Good
US-68 over Buckhorn Creek	1982	6,746	Fair
Ky 3221 over Hardins Creek	1974	4,430	Fair