US Bridges

Smart Highway Wbl over 642

Good

Montgomery County, Virginia · 0.6 MI RTE 460 Bypass · Structure no. 000000000025431

Built
1999
26 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
311 ft
3 main spans
Daily traffic
100
2014 count
Owner
State
State Highway Agency

About this bridge

Smart Highway Wbl over 642 is a steel continuous stringer/multi-beam or girder carrying Smart Highway Wbl over 642 in Montgomery County, Virginia. It was built in 1999, so it is 26 years old, younger 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 100 vehicles a day, projected to reach 200 by 2042. The structure is 311 ft (94.8 m) long and 43 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesSmart Highway Wbl
Crosses642
Location0.6 MI RTE 460 Bypass
RouteCity Street 0
Coordinates37.18509, -80.39149
Functional classRural Local

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.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65 US tons
Inventory rating50 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length311 ft (94.8 m)
Longest span128 ft (39 m)
Deck width43 ft (13 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2014)
Projected traffic200 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

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 Smart Highway Wbl over 642 built?

It was built in 1999, making it 26 years old in 2025.

What condition is Smart Highway Wbl over 642 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 May 2023.

How much traffic does Smart Highway Wbl over 642 carry?

About 100 vehicles per day (2014 count).

How long is Smart Highway Wbl over 642?

The structure is 311 ft (94.8 m) long with a longest span of 128 ft (39 m) and a deck 43 ft wide.

Who owns Smart Highway Wbl over 642?

It is owned by the State Highway Agency.