Home › Georgia › Columbia County › U.S. 221 over J. Strom Thurmond Dam

U.S. 221 over J. Strom Thurmond Dam

Columbia County, Georgia · rated Fair in the 2025 National Bridge Inventory

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

U.S. 221 over J. Strom Thurmond Dam in Columbia County, Georgia, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
It was built in 1950, making it 75 years old at the 2025 inventory.
It carries about 1,350 vehicles a day (traffic count year 2020).
It is one of 6 of the 68 inventoried bridges in Columbia County rated fair (8.8%); 0 (0.0%) 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.

Component ratings

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

Bridge	Built	Vehicles/day	Condition
I-20 (wbl) over Kiokee Creek	1966	47,000	Good
I-20 (ebl) over Uchee Creek	1966	46,900	Good
I-20 (ebl) over Kiokee Creek	1966	39,800	Good
I-20 (wbl) over Uchee Creek	1966	39,200	Good
Belair Road over I-20	1964	38,500	Good
SR 104 over Reeds Creek	1962	36,000	Good