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US421S NC55 over Dunn-erwin Rail Trail

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

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

US421S NC55 over Dunn-erwin Rail Trail in Harnett 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 deck, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1957, making it 68 years old at the 2025 inventory.
It carries about 14,500 vehicles a day (traffic count year 2021).
Its listed owner is the state highway agency.
It is one of 50 of the 137 inventoried bridges in Harnett County rated fair (36.5%); 5 (3.6%) 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	Prestressed concrete stringer or multi-beam girder
Length	about 112 ft
Location	0.1 Mi. N. of Jct. SR1703
NBI structure number	000000000850022
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
I95 over Stoney Run	1965	51,500	Fair
I95N over US421 NC55	1955	25,500	Fair
I95S over US421 NC55	1955	25,500	Poor
NC87 over Gum Swamp	1928	24,500	Fair
NC87 over Cypress Creek	1928	24,500	Fair
US421 NC27 over West Buies Creek	1958	18,000	Good