US Bridges

I-81 Nbl over RTE 716 & Mill Creek

Good

Rockbridge County, Virginia · 0.9 to 11 - 4.62 to 710 · Structure no. 000000000027481

Built
2012
13 years old
Condition
Good
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
321 ft
3 main spans
Daily traffic
23,689
2022 count
Owner
State
State Highway Agency

About this bridge

I-81 Nbl over RTE 716 & Mill Creek is a steel continuous stringer/multi-beam or girder carrying I-81 Nbl over RTE 716 & Mill Creek in Rockbridge County, Virginia. It was built in 2012, so it is 13 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 23,689 vehicles a day, roughly 1% of them trucks, projected to reach 29,106 by 2045. The structure is 321 ft (97.7 m) long and 68 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-81 Nbl
CrossesRTE 716 & Mill Creek
Location0.9 to 11 - 4.62 to 710
RouteInterstate 81
Coordinates37.8526, -79.3578
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67 US tons
Inventory rating52 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length321 ft (97.7 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 traffic23,689 (2022)
Projected traffic29,106 by 2045
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-81 Nbl over RTE 716 & Mill Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is I-81 Nbl over RTE 716 & Mill Creek 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 February 2023.

How much traffic does I-81 Nbl over RTE 716 & Mill Creek carry?

About 23,689 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is I-81 Nbl over RTE 716 & Mill Creek?

The structure is 321 ft (97.7 m) long with a longest span of 125 ft (38.1 m) and a deck 68 ft wide.

Who owns I-81 Nbl over RTE 716 & Mill Creek?

It is owned by the State Highway Agency.