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S-22/orangeburg Rd over Negro Branch

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

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

S-22/orangeburg Rd over Negro Branch in Dorchester 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 1999, making it 26 years old at the 2025 inventory.
It carries about 13,800 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 57 of the 199 inventoried bridges in Dorchester County rated good (28.6%); 4 (2.0%) 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 over Polk Swamp	1974	50,100	Fair
Sc 642 over Eagle Creek	1956	40,300	Fair
Sc 642 over Dorchester Creek	1956	37,200	Fair
Sc 165 over Julia Creek	1997	34,500	Fair
Sc 165 over RR NS & S-10-65	1998	34,500	Good
S-18-230/ladson Rd over Chandler Bridge Creek	2004	30,600	Good