US Bridges

Nbl I-81 over RTE 710

Good

Rockbridge County, Virginia · 5.52 to 11 & 4.45 to 606 · Structure no. 000000000027489

Built
2013
12 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
125 ft
1 main span
Daily traffic
48,668
2022 count
Owner
State
State Highway Agency

About this bridge

Nbl I-81 over RTE 710 is a steel stringer/multi-beam or girder carrying Nbl I-81 over RTE 710 in Rockbridge County, Virginia. It was built in 2013, so it is 12 years old, younger than the Virginia average of 50.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 48,668 vehicles a day, roughly 1% of them trucks, projected to reach 54,265 by 2045. The structure is 125 ft (38.2 m) long and 68 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesNbl I-81
CrossesRTE 710
Location5.52 to 11 & 4.45 to 606
RouteInterstate 81
CountyRockbridge County
StateVirginia
Coordinates37.88542, -79.28531
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96 US tons
Inventory rating74 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length125 ft (38.2 m)
Longest span125 ft (38.1 m)
Deck width68 ft (20.6 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic48,668 (2022)
Projected traffic54,265 by 2045
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 Nbl I-81 over RTE 710 built?

It was built in 2013, making it 12 years old in 2025.

What condition is Nbl I-81 over RTE 710 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2023.

How much traffic does Nbl I-81 over RTE 710 carry?

About 48,668 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Nbl I-81 over RTE 710?

The structure is 125 ft (38.2 m) long with a longest span of 125 ft (38.1 m) and a deck 68 ft wide.

Who owns Nbl I-81 over RTE 710?

It is owned by the State Highway Agency.