US Bridges

Mt Hebron RD over I-81

Fair

Shenandoah County, Virginia · 1.80 to 623 - 0.10 to 757 · Structure no. 000000000017148

Built
1965
60 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
290 ft
5 main spans
Daily traffic
216
2022 count
Owner
State
State Highway Agency

About this bridge

Mt Hebron RD over I-81 is a prestressed concrete stringer/multi-beam or girder carrying Mt Hebron RD over I-81 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 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 216 vehicles a day, roughly 1% of them trucks, projected to reach 241 by 2042. The structure is 290 ft (88.5 m) long and 29 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesMt Hebron RD
CrossesI-81
Location1.80 to 623 - 0.10 to 757
RouteCounty Highway 646
CountyShenandoah County
StateVirginia
Coordinates38.97247, -78.42855
Functional classRural Minor Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating87 US tons
Inventory rating61.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length290 ft (88.5 m)
Longest span60 ft (18.2 m)
Deck width29 ft (8.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic216 (2022)
Projected traffic241 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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$82 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mt Hebron RD over I-81 built?

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

What condition is Mt Hebron RD over I-81 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 Mt Hebron RD over I-81 carry?

About 216 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Mt Hebron RD over I-81?

The structure is 290 ft (88.5 m) long with a longest span of 60 ft (18.2 m) and a deck 29 ft wide.

Who owns Mt Hebron RD over I-81?

It is owned by the State Highway Agency.