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L-7-5929 over Marsh

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

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

L-7-5929 over Marsh in Beaufort 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 2004, making it 21 years old at the 2025 inventory.
It carries about 425 vehicles a day (traffic count year 2023).
Its listed owner is the county highway agency.
It is one of 28 of the 72 inventoried bridges in Beaufort County rated good (38.9%); 4 (5.6%) 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


Structure	Prestressed concrete multiple box beam
Length	about 419 ft
Location	12.8 Mi SW of Beaufort
NBI structure number	000000000010527
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
US 278 EB over Okatie River	1991	33,950	Fair
US 278 EB over Sc 170	1991	33,950	Good
US 278 WB over Okatie River	1991	33,950	Fair
US 278 WB over Sc 170	1991	33,950	Good
US 21/RIBAUT Rd over Battery Creek Overflow	1993	32,900	Fair
US 21 over Battery Creek	1994	32,900	Fair