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S-15-146 over Fuller Swamp

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

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

S-15-146 over Fuller Swamp in Colleton 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 1961, making it 64 years old at the 2025 inventory.
It carries about 325 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 76 of the 231 inventoried bridges in Colleton County rated good (32.9%); 6 (2.6%) 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-95 NB over Combahee River	1970	26,000	Fair
I-95 NB over Combahee Swamp	1970	26,000	Fair
I-95 SB over Combahee River	1970	26,000	Fair
I-95 SB over Combahee Swamp	1970	26,000	Fair
I-95 NB over Great Swamp	1972	24,700	Fair
I-95 NB over S.c.l. Railroad	1972	24,700	Fair