US Bridges

I-495 Sbl over RTE.50

Good

Fairfax County, Virginia · 01.29FR0066/00.83TO0650 · Structure no. 000000000028671

Built
2010
15 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
185 ft
2 main spans
Daily traffic
151,785
2022 count
Owner
State
State Highway Agency

About this bridge

I-495 Sbl over RTE.50 is a prestressed concrete stringer/multi-beam or girder carrying I-495 Sbl over RTE.50 in Fairfax County, Virginia. It was built in 2010, so it is 15 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 151,785 vehicles a day, roughly 6% of them trucks, projected to reach 97,900 by 2042. The structure is 185 ft (56.4 m) long and 106 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesI-495 Sbl
CrossesRTE.50
Location01.29FR0066/00.83TO0650
RouteInterstate 495
CountyFairfax County
StateVirginia
Coordinates38.86553, -77.22031
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.
Substructure8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85.3 US tons
Inventory rating65.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length185 ft (56.4 m)
Longest span93 ft (28.2 m)
Deck width106 ft (32.4 m)
Roadway width72 ft (21.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic151,785 (2022)
Projected traffic97,900 by 2042
Trucks6%
Lanes on structure6
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.2 mi (10 km)
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$250 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-495 Sbl over RTE.50 built?

It was built in 2010, making it 15 years old in 2025.

What condition is I-495 Sbl over RTE.50 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 September 2024.

How much traffic does I-495 Sbl over RTE.50 carry?

About 151,785 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is I-495 Sbl over RTE.50?

The structure is 185 ft (56.4 m) long with a longest span of 93 ft (28.2 m) and a deck 106 ft wide.

Who owns I-495 Sbl over RTE.50?

It is owned by the State Highway Agency.