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US13 US64E over Ross Swamp

Martin County, North Carolina · rated Fair in the 2025 National Bridge Inventory

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

US13 US64E over Ross Swamp in Martin County, North Carolina, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the culvert, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1999, making it 26 years old at the 2025 inventory.
It carries about 8,200 vehicles a day (traffic count year 2022).
Its listed owner is the state highway agency.
It is one of 62 of the 124 inventoried bridges in Martin County rated fair (50.0%); 4 (3.2%) 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

Component	Rating (2025)	FHWA scale meaning
Culvert	6	Satisfactory condition


Structure	Continuous concrete culvert
Length	about 40 ft
Location	0.8 Mi. W. Jct. SR115
NBI structure number	000000001170265
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
US13 US64 over Back Swamp Branch	1999	10,000	Fair
US13 US64E over Fork of Collie Creek	1999	9,800	Good
US13 US64E over US64ALT	1999	9,000	Good
US13 US64 over Flat Swamp	1999	9,000	Good
US13/64E over NC903	1999	8,200	Fair
US13W US64W over Flat Swamp	1998	7,800	Good