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US 601 over Halfway Swamp

Calhoun County, South Carolina · rated Good in the 2025 National Bridge Inventory

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

US 601 over Halfway Swamp in Calhoun County, South Carolina, 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 1993, making it 32 years old at the 2025 inventory.
It carries about 2,300 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 6 of the 61 inventoried bridges in Calhoun County rated good (9.8%); 2 (3.3%) 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

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

Bridge	Built	Vehicles/day	Condition
I-26 over Savany Hunt Creek	1960	64,600	Fair
I-26 over Sandy Run Creek	1960	62,000	Fair
I-26 over Murph Mill Creek	1960	61,200	Fair
I-26 over Burke Creek	1960	58,800	Fair
US 601 over Antley Spring Creek	1930	5,700	Good
US 21 over Murph Mill Creek	1940	5,000	Fair