US Bridges

Nbl Route 0081 over RTE 311

Fair

Roanoke County, Virginia · 2.94-RT112; 1.35-RT419 · Structure no. 000000000014885

Built
1986
39 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
144 ft
1 main span
Daily traffic
33,206
2022 count
Owner
State
State Highway Agency

About this bridge

Nbl Route 0081 over RTE 311 is a steel stringer/multi-beam or girder carrying Nbl Route 0081 over RTE 311 in Roanoke County, Virginia. It was built in 1986, so it is 39 years old, younger 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. Its operating status is: open, would be posted or closed except for temporary shoring.

It carries about 33,206 vehicles a day, roughly 1% of them trucks, projected to reach 39,999 by 2045. The structure is 144 ft (43.9 m) long and 44 ft wide.

CarriesNbl Route 0081
CrossesRTE 311
Location2.94-RT112; 1.35-RT419
RouteInterstate 81
Coordinates37.31468, -80.05454
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, would be posted or closed except for temporary shoring
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating77.1 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length144 ft (43.9 m)
Longest span144 ft (43.9 m)
Deck width44 ft (13.4 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33,206 (2022)
Projected traffic39,999 by 2045
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nbl Route 0081 over RTE 311 built?

It was built in 1986, making it 39 years old in 2025.

What condition is Nbl Route 0081 over RTE 311 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 Nbl Route 0081 over RTE 311 carry?

About 33,206 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Nbl Route 0081 over RTE 311?

The structure is 144 ft (43.9 m) long with a longest span of 144 ft (43.9 m) and a deck 44 ft wide.

Who owns Nbl Route 0081 over RTE 311?

It is owned by the State Highway Agency.