US Bridges

Nbl Route 0081 over RTE 100

Fair

Pulaski County, Virginia · 4.38-RT 99; 6.22-MONTG CO · Structure no. 000000000014490

Built
1965
60 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
257 ft
4 main spans
Daily traffic
23,385
2022 count
Owner
State
State Highway Agency

About this bridge

Nbl Route 0081 over RTE 100 is a steel stringer/multi-beam or girder carrying Nbl Route 0081 over RTE 100 in Pulaski County, Virginia. It was built in 1965, so it is 60 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 23,385 vehicles a day, roughly 1% of them trucks, projected to reach 27,565 by 2042. The structure is 257 ft (78.2 m) long and 42 ft wide.

CarriesNbl Route 0081
CrossesRTE 100
Location4.38-RT 99; 6.22-MONTG CO
RouteInterstate 81
Coordinates37.07858, -80.69215
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 inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.9 US tons
Inventory rating48 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length257 ft (78.2 m)
Longest span70 ft (21.3 m)
Deck width42 ft (12.9 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,385 (2022)
Projected traffic27,565 by 2042
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nbl Route 0081 over RTE 100 built?

It was built in 1965, making it 60 years old in 2025.

What condition is Nbl Route 0081 over RTE 100 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 2024.

How much traffic does Nbl Route 0081 over RTE 100 carry?

About 23,385 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Nbl Route 0081 over RTE 100?

The structure is 257 ft (78.2 m) long with a longest span of 70 ft (21.3 m) and a deck 42 ft wide.

Who owns Nbl Route 0081 over RTE 100?

It is owned by the State Highway Agency.