US Bridges

I-81 Nbl over Harman RD

Fair

Shenandoah County, Virginia · 4.89 to 42 - 3.25 to 651 · Structure no. 000000000017003

Built
1965
60 years old
Condition
Fair
inspected February 2023
Type
Tee Beam
Concrete
Length
110 ft
3 main spans
Daily traffic
23,066
2022 count
Owner
State
State Highway Agency

About this bridge

I-81 Nbl over Harman RD is a concrete tee beam carrying I-81 Nbl over Harman RD in Shenandoah County, Virginia. It was built in 1965, so it is 60 years old, older than the Virginia average of 50.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 23,066 vehicles a day, roughly 1% of them trucks, projected to reach 31,046 by 2045. The structure is 110 ft (33.5 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-81 Nbl
CrossesHarman RD
Location4.89 to 42 - 3.25 to 651
RouteInterstate 81
Coordinates38.93124, -78.47918
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72 US tons
Inventory rating56 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length110 ft (33.5 m)
Longest span38 ft (11.6 m)
Deck width44 ft (13.4 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,066 (2022)
Projected traffic31,046 by 2045
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$45 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-81 Nbl over Harman RD built?

It was built in 1965, making it 60 years old in 2025.

What condition is I-81 Nbl over Harman RD in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2023.

How much traffic does I-81 Nbl over Harman RD carry?

About 23,066 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is I-81 Nbl over Harman RD?

The structure is 110 ft (33.5 m) long with a longest span of 38 ft (11.6 m) and a deck 44 ft wide.

Who owns I-81 Nbl over Harman RD?

It is owned by the State Highway Agency.