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Ky 621 over Sinking Creek

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

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

Ky 621 over Sinking Creek in Simpson 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 2020, making it 5 years old at the 2025 inventory.
It carries about 527 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 20 of the 51 inventoried bridges in Simpson County rated good (39.2%); 3 (5.9%) 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 29 ft
Location	2 Mi N of Jct US 31W
NBI structure number	107B00055N
Condition class	Good

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

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