US Bridges

I-495 Gp Sbl Fo over I-66 Wbl

Good

Fairfax County, Virginia · 0.50 FR 495 / 0.25 to 66 · Structure no. 000000000031019

Built
2022
3 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
372 ft
3 main spans
Daily traffic
24,000
2021 count
Owner
State
State Highway Agency

About this bridge

I-495 Gp Sbl Fo over I-66 Wbl is a steel continuous stringer/multi-beam or girder carrying I-495 Gp Sbl Fo over I-66 Wbl in Fairfax County, Virginia. It was built in 2022, so it is 3 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 24,000 vehicles a day, roughly 1% of them trucks, projected to reach 26,800 by 2040. The structure is 372 ft (113.5 m) long and 35 ft wide.

Location

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CarriesI-495 Gp Sbl Fo
CrossesI-66 Wbl
Location0.50 FR 495 / 0.25 to 66
RouteInterstate 495
CountyFairfax County
StateVirginia
Coordinates38.88622, -77.22261
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
Deck9 ExcellentNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating99 US tons
Inventory rating82 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length372 ft (113.5 m)
Longest span157 ft (47.9 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,000 (2021)
Projected traffic26,800 by 2040
Trucks1%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a toll road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byPrivate (other than railroad)
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 I-495 Gp Sbl Fo over I-66 Wbl built?

It was built in 2022, making it 3 years old in 2025.

What condition is I-495 Gp Sbl Fo over I-66 Wbl 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 April 2023.

How much traffic does I-495 Gp Sbl Fo over I-66 Wbl carry?

About 24,000 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is I-495 Gp Sbl Fo over I-66 Wbl?

The structure is 372 ft (113.5 m) long with a longest span of 157 ft (47.9 m) and a deck 35 ft wide.

Who owns I-495 Gp Sbl Fo over I-66 Wbl?

It is owned by the State Highway Agency and maintained by the Private (other than railroad).