US Bridges

495 Nbh & Jbewn over Dtr and Daar

Good

Fairfax County, Virginia · 0.75 FR 7 1.87 to 193 · Structure no. 000000000028688

Built
2012
13 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
243 ft
3 main spans
Daily traffic
10,259
2022 count
Owner
State
State Highway Agency

About this bridge

495 Nbh & Jbewn over Dtr and Daar is a prestressed concrete stringer/multi-beam or girder carrying 495 Nbh & Jbewn over Dtr and Daar in Fairfax County, Virginia. It was built in 2012, so it is 13 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 10,259 vehicles a day, roughly 1% of them trucks, projected to reach 14,978 by 2042. The structure is 243 ft (74.1 m) long and 78 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Carries495 Nbh & Jbewn
CrossesDtr and Daar
Location0.75 FR 7 1.87 to 193
RouteInterstate 495
Coordinates38.93118, -77.21104
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.
Last inspectionJuly 2024
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 rating89.9 US tons
Inventory rating60 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length243 ft (74.1 m)
Longest span100 ft (30.5 m)
Deck width78 ft (23.9 m)
Roadway width63 ft (19.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,259 (2022)
Projected traffic14,978 by 2042
Trucks1%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byPrivate (other than railroad)
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2.5 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was 495 Nbh & Jbewn over Dtr and Daar built?

It was built in 2012, making it 13 years old in 2025.

What condition is 495 Nbh & Jbewn over Dtr and Daar 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 495 Nbh & Jbewn over Dtr and Daar carry?

About 10,259 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is 495 Nbh & Jbewn over Dtr and Daar?

The structure is 243 ft (74.1 m) long with a longest span of 100 ft (30.5 m) and a deck 78 ft wide.

Who owns 495 Nbh & Jbewn over Dtr and Daar?

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