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Interstate 81 Sbl over R658 Scratch Gravel Rd.

Smyth County, Virginia · rated Good in the 2025 National Bridge Inventory

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

Interstate 81 Sbl over R658 Scratch Gravel Rd. in Smyth County, Virginia, 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 1962 and reconstructed in 2012, making it 63 years old at the 2025 inventory.
It carries about 16,999 vehicles a day (traffic count year 2022).
Its listed owner is the state highway agency.
It is one of 31 of the 189 inventoried bridges in Smyth County rated good (16.4%); 7 (3.7%) 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	Continuous steel stringer or multi-beam girder
Length	about 222 ft
Location	1.14 Fr 730 - 0.59 to 16
NBI structure number	000000000017438
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
N&sbl Route 0081 over Laurel Spring Branch	1963	33,381	Fair
Interstate 81 over Nbl&sbl over Stream	1963	31,442	Fair
I-81 Nbl & Sbl over Rte 11 Nsrr Mfh River	2021	31,084	Good
Interstate 81 over Staley Creek	1962	30,390	Fair
Interstate 81 over N&sbl O Hutton Branch	1963	29,356	Fair
Route 81 over Nbl&sbl over Stream	1964	27,803	Fair