US Bridges

Interstate 81(NBL) over Rt 622 and Nicks Creek

Fair

Smyth County, Virginia · 3.03 to R11&4.02 to R683 · Structure no. 000000000017458

Built
1963
62 years old, rebuilt 1989
Condition
Fair
inspected March 2024
Type
Tee Beam
Concrete
Length
204 ft
5 main spans
Daily traffic
15,800
2022 count
Owner
State
State Highway Agency

About this bridge

Interstate 81(NBL) over Rt 622 and Nicks Creek is a concrete tee beam carrying Interstate 81(NBL) over Rt 622 and Nicks Creek in Smyth County, Virginia. It was built in 1963 and reconstructed in 1989, so it is 62 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 15,800 vehicles a day, roughly 25% of them trucks, projected to reach 17,617 by 2042. The structure is 204 ft (62.1 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesInterstate 81(NBL)
CrossesRt 622 and Nicks Creek
Location3.03 to R11&4.02 to R683
RouteInterstate 81
Coordinates36.86289, -81.43449
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating78 US tons
Inventory rating60 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length204 ft (62.1 m)
Longest span41 ft (12.6 m)
Deck width44 ft (13.4 m)
Roadway width41 ft (12.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,800 (2022)
Projected traffic17,617 by 2042
Trucks25%
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
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$468 million (2019 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Interstate 81(NBL) over Rt 622 and Nicks Creek built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1989.

What condition is Interstate 81(NBL) over Rt 622 and Nicks Creek 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 March 2024.

How much traffic does Interstate 81(NBL) over Rt 622 and Nicks Creek carry?

About 15,800 vehicles per day (2022 count), of which roughly 25% are trucks.

How long is Interstate 81(NBL) over Rt 622 and Nicks Creek?

The structure is 204 ft (62.1 m) long with a longest span of 41 ft (12.6 m) and a deck 44 ft wide.

Who owns Interstate 81(NBL) over Rt 622 and Nicks Creek?

It is owned by the State Highway Agency.