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Bridge conditions in Simpson County, Kentucky

51 inventoried bridges · 3 rated poor · 2025 National Bridge Inventory

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

The federal inventory lists 51 bridges in Simpson County: 20 rated good, 28 fair, and 3 poor.

3 of the 51 bridges in Simpson County, Kentucky, are rated in poor condition (5.9%) in the 2025 National Bridge Inventory, as of August 20, 2026.
20 bridges (39.2%) are rated good and 28 (54.9%) fair.
The median Simpson County bridge was built in 1997.
The busiest poor-rated bridge is Ky-100 over Sulphur Fork Creek (built 1930), carrying about 2,537 vehicles a day.

Good 39.2% · Fair 54.9% · Poor 5.9% of 51 bridges

Bridges rated poor

Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.

Bridge	Built	Vehicles/day	Condition
Ky-100 over Sulphur Fork Creek	1930	2,537	Poor
Ky-585 over Lick Fork Creek	1978	995	Poor
Pepper Road over Tributary of Red River	1960	113	Poor

Busiest bridges in the county

Bridge	Built	Vehicles/day	Condition
I-65 over Ky 100	2008	56,578	Fair
I-65 over West Fork Drakes Creek	2007	56,578	Fair
I-65 over U.S. 31W	2007	52,337	Fair
I-65 over CSX Railroad	2007	52,337	Fair
I-65 over West Fork Drakes Creek	2007	52,337	Fair
US 31W over Sharps Branch	2017	12,198	Good
Ky 1008 over Seaboard Railroad	1969	9,683	Fair
Ky-100 over West Fk-drakes Creek	1990	9,307	Fair
US-31W over Sinking Creek	1941	8,238	Fair
Ky 1008 over Seaboard Railroad	2001	4,684	Fair

Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.

All of Kentucky: Kentucky bridge conditions by county · every download on the data page.

Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.