US Bridges

Route I-81 N&sbl over Town Creek

Fair

Washington County, Virginia · 2.5 Fr. 11; 0.03 to 75. · Structure no. 000000000022401

Built
1961
64 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete
Length
25 ft
3 main spans
Daily traffic
51,110
2022 count
Owner
State
State Highway Agency

About this bridge

Route I-81 N&sbl over Town Creek is a concrete culvert carrying Route I-81 N&sbl over Town Creek in Washington County, Virginia. It was built in 1961, so it is 64 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 51,110 vehicles a day, roughly 1% of them trucks, projected to reach 56,988 by 2042. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 6.8 mi (11 km).

CarriesRoute I-81 N&sbl
CrossesTown Creek
Location2.5 Fr. 11; 0.03 to 75.
RouteInterstate 81
Coordinates36.69943, -81.974
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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 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
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 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 traffic51,110 (2022)
Projected traffic56,988 by 2042
Trucks1%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$52 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Route I-81 N&sbl over Town Creek built?

It was built in 1961, making it 64 years old in 2025.

What condition is Route I-81 N&sbl over Town 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 July 2024.

How much traffic does Route I-81 N&sbl over Town Creek carry?

About 51,110 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Route I-81 N&sbl over Town Creek?

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

Who owns Route I-81 N&sbl over Town Creek?

It is owned by the State Highway Agency.