US Bridges

Route 0081 over Ramp to Sbl O Stream

Fair

Smyth County, Virginia · 6.97-RT11 & .08-RT683 · Structure no. 000000000017496

Built
1964
61 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete
Length
29 ft
3 main spans
Daily traffic
307
2022 count
Owner
State
State Highway Agency

About this bridge

Route 0081 over Ramp to Sbl O Stream is a concrete culvert carrying Route 0081 over Ramp to Sbl O Stream in Smyth County, Virginia. It was built in 1964, so it is 61 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 307 vehicles a day, projected to reach 450 by 2045. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesRoute 0081
CrossesRamp to Sbl O Stream
Location6.97-RT11 & .08-RT683
RouteInterstate 81
Coordinates36.88923, -81.37202
Functional classRural 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 inspectionJanuary 2025
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 rating49.1 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic307 (2022)
Projected traffic450 by 2045
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Route 0081 over Ramp to Sbl O Stream built?

It was built in 1964, making it 61 years old in 2025.

What condition is Route 0081 over Ramp to Sbl O Stream 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 January 2025.

How much traffic does Route 0081 over Ramp to Sbl O Stream carry?

About 307 vehicles per day (2022 count).

How long is Route 0081 over Ramp to Sbl O Stream?

The structure is 29 ft (8.8 m) long with a longest span of 9 ft (2.7 m).

Who owns Route 0081 over Ramp to Sbl O Stream?

It is owned by the State Highway Agency.