US Bridges

I-95 (ramp Sb) over Backlick Road

Good

Fairfax County, Virginia · 01.40FR644/01.17TO617 · Structure no. 000000000023622

Built
1993
32 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
421 ft
4 main spans
Daily traffic
4,786
2022 count
Owner
State
State Highway Agency

About this bridge

I-95 (ramp Sb) over Backlick Road is a steel continuous stringer/multi-beam or girder carrying I-95 (ramp Sb) over Backlick Road in Fairfax County, Virginia. It was built in 1993, so it is 32 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 4,786 vehicles a day, roughly 5% of them trucks, projected to reach 5,636 by 2042. The structure is 421 ft (128.3 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-95 (ramp Sb)
CrossesBacklick Road
Location01.40FR644/01.17TO617
RouteInterstate 95
CountyFairfax County
StateVirginia
Coordinates38.75657, -77.18417
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 inspectionSeptember 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 alignment6: Equal to present minimum criteria
Operating rating76.3 US tons
Inventory rating59 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length421 ft (128.3 m)
Longest span125 ft (38.1 m)
Deck width33 ft (10.2 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,786 (2022)
Projected traffic5,636 by 2042
Trucks5%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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$175 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-95 (ramp Sb) over Backlick Road built?

It was built in 1993, making it 32 years old in 2025.

What condition is I-95 (ramp Sb) over Backlick Road 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-95 (ramp Sb) over Backlick Road carry?

About 4,786 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is I-95 (ramp Sb) over Backlick Road?

The structure is 421 ft (128.3 m) long with a longest span of 125 ft (38.1 m) and a deck 33 ft wide.

Who owns I-95 (ramp Sb) over Backlick Road?

It is owned by the State Highway Agency.