US Bridges

I-381N Ramp 1A over I-381S(OVR);I-81/58(UND)

Fair

Washington County, Virginia · 0.15FR381;0.20TO I-81/58 · Structure no. 000000000020051

Built
1987
38 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
372 ft
4 main spans
Daily traffic
477
2022 count
Owner
State
State Highway Agency

About this bridge

I-381N Ramp 1A over I-381S(OVR);I-81/58(UND) is a steel continuous stringer/multi-beam or girder carrying I-381N Ramp 1A over I-381S(OVR);I-81/58(UND) in Washington County, Virginia. It was built in 1987, so it is 38 years old, younger 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 6 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 477 vehicles a day, projected to reach 696 by 2042. The structure is 372 ft (113.4 m) long and 34 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesI-381N Ramp 1A
CrossesI-381S(OVR);I-81/58(UND)
Location0.15FR381;0.20TO I-81/58
RouteInterstate 381
CountyWashington County
StateVirginia
Coordinates36.62406, -82.18088
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating99 US tons
Inventory rating89.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length372 ft (113.4 m)
Longest span118 ft (36 m)
Deck width34 ft (10.3 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deck17 ft (5.2 m)

Traffic and service

Average daily traffic477 (2022)
Projected traffic696 by 2042
Trucks0%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-381N Ramp 1A over I-381S(OVR);I-81/58(UND) built?

It was built in 1987, making it 38 years old in 2025.

What condition is I-381N Ramp 1A over I-381S(OVR);I-81/58(UND) 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 July 2024.

How much traffic does I-381N Ramp 1A over I-381S(OVR);I-81/58(UND) carry?

About 477 vehicles per day (2022 count).

How long is I-381N Ramp 1A over I-381S(OVR);I-81/58(UND)?

The structure is 372 ft (113.4 m) long with a longest span of 118 ft (36 m) and a deck 34 ft wide.

Who owns I-381N Ramp 1A over I-381S(OVR);I-81/58(UND)?

It is owned by the State Highway Agency.