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US 17 Alt over Scl RR & S-1

Hampton County, South Carolina · rated Poor in the 2025 National Bridge Inventory

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

US 17 Alt over Scl RR & S-1 in Hampton County, South Carolina, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 4 (poor condition) on the 0-9 scale.
It was built in 1938, making it 87 years old at the 2025 inventory.
It carries about 1,950 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 5 of the 113 inventoried bridges in Hampton County rated poor (4.4%); 5 (4.4%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings


Structure	Steel stringer or multi-beam girder
Length	about 280 ft
Location	In Yemassee
NBI structure number	000000000000872
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
I-95 over Pocotaligo River	1969	53,000	Fair
I-95 NB over S-37	1969	26,500	Fair
I-95 SB over S-37	1969	26,500	Fair
I-95 SB over S.c. 68 & S.c.l. RR	1969	26,500	Fair
I-95 NB over S.c. 68 & S.c.l. RR	1969	26,000	Fair
I-95 over Trib to Combahee Riv	1969	26,000	Fair