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Rockhouse Mills Rd over Rockhouse Fork

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

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

Rockhouse Mills Rd over Rockhouse Fork in Martin 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 8 (very good condition) on the 0-9 scale.
It was built in 2022, making it 3 years old at the 2025 inventory.
It carries about 90 vehicles a day (traffic count year 2011).
Its listed owner is the county highway agency.
It is one of 22 of the 70 inventoried bridges in Martin County rated good (31.4%); 10 (14.3%) 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 40 ft
Location	0.1 M W of JCT KY 1224
NBI structure number	080C00061N
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
Ky-40 over Rockcastle Creek	1953	4,804	Poor
Ky-645 over Middle Fork	2004	4,537	Good
Ky-645 over Becca Liz Ln	2005	4,537	Good
Ky-645 over KY-40 & Coldwater Fork	2010	4,537	Good
Ky-645 Ramp Ky-40 over Coldwater Fork	2006	4,537	Good
Ky 40 over Buck Creek	1929	4,308	Good