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US23/58/421 over Clinch River

Scott County, Virginia · rated Fair in the 2025 National Bridge Inventory

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

US23/58/421 over Clinch River in Scott County, Virginia, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 5 (fair condition) on the 0-9 scale.
It was built in 1971 and reconstructed in 1991, making it 54 years old at the 2025 inventory.
It carries about 12,606 vehicles a day (traffic count year 2022).
Its listed owner is the state highway agency.
It is one of 97 of the 138 inventoried bridges in Scott County rated fair (70.3%); 14 (10.1%) 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	Steel stringer or multi-beam girder
Length	about 502 ft
Location	0.03 to 625; 0.11 to 627
NBI structure number	000000000016549
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
US Highway 23 over Branch	1932	20,812	Fair
Route 23 over N Fork Holston River	1943	20,812	Good
Route 23 Business over NS Rr;little Moccasin Ck	2000	15,883	Fair
US Highway 23 over Troublesome Creek	1970	12,606	Fair
US Highway 23 over Troublesome Creek	1970	12,606	Fair
Route 0023 over Little Stock Creek	1970	12,370	Fair