US Bridges

Interstate 81 Nbl over RT658(SCRATCH Gravel)&ck

Good

Smyth County, Virginia · 9.7 FR 107 - 0.30 to 16 · Structure no. 000000000017436

Built
1962
63 years old, rebuilt 2012
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
242 ft
3 main spans
Daily traffic
17,343
2022 count
Owner
State
State Highway Agency

About this bridge

Interstate 81 Nbl over RT658(SCRATCH Gravel)&ck is a steel continuous stringer/multi-beam or girder carrying Interstate 81 Nbl over RT658(SCRATCH Gravel)&ck in Smyth County, Virginia. It was built in 1962 and reconstructed in 2012, 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 17,343 vehicles a day, roughly 1% of them trucks, projected to reach 19,337 by 2042. The structure is 242 ft (73.8 m) long and 45 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesInterstate 81 Nbl
CrossesRT658(SCRATCH Gravel)&ck
Location9.7 FR 107 - 0.30 to 16
RouteInterstate 81
Coordinates36.82272, -81.51641
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating86 US tons
Inventory rating66 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length242 ft (73.8 m)
Longest span108 ft (32.9 m)
Deck width45 ft (13.8 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,343 (2022)
Projected traffic19,337 by 2042
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed3.7 mi (6 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Interstate 81 Nbl over RT658(SCRATCH Gravel)&ck built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 2012.

What condition is Interstate 81 Nbl over RT658(SCRATCH Gravel)&ck in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.

How much traffic does Interstate 81 Nbl over RT658(SCRATCH Gravel)&ck carry?

About 17,343 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Interstate 81 Nbl over RT658(SCRATCH Gravel)&ck?

The structure is 242 ft (73.8 m) long with a longest span of 108 ft (32.9 m) and a deck 45 ft wide.

Who owns Interstate 81 Nbl over RT658(SCRATCH Gravel)&ck?

It is owned by the State Highway Agency.