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Bridge conditions in Calhoun County, South Carolina

61 inventoried bridges · 2 rated poor · 2025 National Bridge Inventory

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

The federal inventory lists 61 bridges in Calhoun County: 6 rated good, 53 fair, and 2 poor.

2 of the 61 bridges in Calhoun County, South Carolina, are rated in poor condition (3.3%) in the 2025 National Bridge Inventory, as of August 20, 2026.
6 bridges (9.8%) are rated good and 53 (86.9%) fair.
The median Calhoun County bridge was built in 1960.
The busiest poor-rated bridge is S-9-22 over Caw Caw Creek (built 1935), carrying about 3,300 vehicles a day.

Good 9.8% · Fair 86.9% · Poor 3.3% of 61 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
S-9-22 over Caw Caw Creek	1935	3,300	Poor
S-9-24 over Bates Mill Creek	1930	800	Poor

Busiest bridges in the county

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
US 21 over Savany Hunt Creek	1965	4,900	Fair
Sc 6 over Sou.r/r-in St.matthews-	1953	4,600	Fair
US 176 over Sandy Run Creek	1930	4,300	Fair
S-9-22 over Caw Caw Creek	1935	3,300	Poor

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

All of South Carolina: South Carolina 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.