S-23-55 over I-385

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

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

S-23-55 over I-385 in Greenville 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 2002, making it 23 years old at the 2025 inventory.
It carries about 22,400 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 351 of the 636 inventoried bridges in Greenville County rated good (55.2%); 47 (7.4%) 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


Structure	Continuous steel stringer or multi-beam girder
Length	about 255 ft
Location	12MI S Simpsonville
NBI structure number	000000000002542
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
I-85 over Muddy Ford Rd (s-580)	1960	140,900	Fair
I-85 over Rocky Creek	2022	140,900	Good
I-85 over Brushy Creek	1962	120,200	Fair
I-85 over Enoree River	2000	120,200	Fair
I-85 over U S 276	1960	118,000	Fair
I-85 over Laurel Creek	1960	113,800	Fair