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I-81 Sbl over Water Plant Rd (rt 840)

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

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

I-81 Sbl over Water Plant Rd (rt 840) in Warren 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 9 (excellent condition) on the 0-9 scale.
It was built in 2023, making it 2 years old at the 2025 inventory.
It carries about 25,185 vehicles a day (traffic count year 2020).
Its listed owner is the state highway agency.
It is one of 33 of the 84 inventoried bridges in Warren County rated good (39.3%); 1 (1.2%) 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 stringer or multi-beam girder
Length	about 129 ft
Location	0.83 Shen -0.45 Frederick
NBI structure number	000000000031392
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
I-66 over Molly Booth Run	1970	34,901	Fair
N Shenandoah Ave over N F Shen River & NS Rwy	1941	31,222	Good
Winchester Rd over Crooked Run	1941	31,222	Fair
I-81 Nbl over Water Plant Rd (rt 840)	1965	30,782	Fair
N Shen Ave-340/522 over S F Shen River & NS Rwy	2016	29,273	Good
Route 66 Ebl over Manassas Run & Rte. 647	1979	19,264	Fair