US Bridges

Interstate 81 over Staley Creek

Fair

Smyth County, Virginia · 1.67 to R730; .06 to R16 · Structure no. 000000000020620

Built
1962
63 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete
Length
25 ft
3 main spans
Daily traffic
30,390
2022 count
Owner
State
State Highway Agency

About this bridge

Interstate 81 over Staley Creek is a concrete culvert carrying Interstate 81 over Staley Creek in Smyth County, Virginia. It was built in 1962, so it is 63 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 30,390 vehicles a day, roughly 1% of them trucks, projected to reach 33,885 by 2045. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesInterstate 81
CrossesStaley Creek
Location1.67 to R730; .06 to R16
RouteInterstate 81
Coordinates36.82604, -81.50736
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating99 US tons
Inventory rating98 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30,390 (2022)
Projected traffic33,885 by 2045
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Interstate 81 over Staley Creek built?

It was built in 1962, making it 63 years old in 2025.

What condition is Interstate 81 over Staley 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 August 2023.

How much traffic does Interstate 81 over Staley Creek carry?

About 30,390 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Interstate 81 over Staley Creek?

The structure is 25 ft (7.6 m) long with a longest span of 8 ft (2.4 m).

Who owns Interstate 81 over Staley Creek?

It is owned by the State Highway Agency.