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US 15 over RR to Willamette

Marlboro County, South Carolina · rated Fair in the 2025 National Bridge Inventory

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

US 15 over RR to Willamette in Marlboro County, South Carolina, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1989, making it 36 years old at the 2025 inventory.
It carries about 4,300 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 55 of the 97 inventoried bridges in Marlboro County rated fair (56.7%); 7 (7.2%) are rated poor.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings


Structure	Continuous steel stringer or multi-beam girder
Length	about 200 ft
Location	4.5MI SW Bennetsville
NBI structure number	000000000008285
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Sc 9 Bus over Crooked Creek	1921	10,100	Poor
Sc 9 over Phillis Creek	1932	8,300	Poor
Sc 9 over Crooked Creek	2010	7,900	Good
US 15 over Beaver Dam Creek	1939	7,600	Fair
US 15 over Panther Creek	1925	7,600	Poor
Sc 38 over Three Creeks	1994	7,500	Fair