Structure 18742 · Warren County, VA

I-81 Nbl over Water Plant RD (rt 840)

Carries I-81 Nbl over Water Plant RD (rt 840), 0.83 Shen -0.45 Frederick.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT128 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

128 ft end to end, longest span 46 ft. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a tee-beam bridge.

Built196561 years old
Length128.0 ft39 m
Daily traffic30,782counted 2022
Last inspectedDecember 2024every 24 months

Location

StateVirginia
CountyWarren
Location0.83 Shen -0.45 Frederick
CarriesI-81 Nbl
CrossesWater Plant RD (rt 840)
Coordinates39.00551, -78.30810

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length128.0 ft (39 m)
Max Span45.9 ft (14 m)
Deck Width44.0 ft (13.4 m)
Deck Area522.6 sq m
Main Spans3
Year Built1965

Traffic

Avg Daily Traffic30,782 (2022)
Truck Traffic27%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000018742

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

Nearby Bridges