US Bridges

Ramp F & I-495 NB over Backlick Run

Fair

Fairfax County, Virginia · 0.24FR395 0.41TO617 · Structure no. 000000000006584

Built
1962
63 years old, rebuilt 2002
Condition
Fair
inspected July 2024
Type
Culvert
Concrete
Length
52 ft
4 main spans
Daily traffic
102,082
2022 count
Owner
State
State Highway Agency

About this bridge

Ramp F & I-495 NB over Backlick Run is a concrete culvert carrying Ramp F & I-495 NB over Backlick Run in Fairfax County, Virginia. It was built in 1962 and reconstructed in 2002, so it is 63 years old, older than the Virginia average of 50.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 102,082 vehicles a day, roughly 1% of them trucks, projected to reach 119,485 by 2042. The structure is 52 ft (15.8 m) long. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesRamp F & I-495 NB
CrossesBacklick Run
Location0.24FR395 0.41TO617
RouteInterstate 495
CountyFairfax County
StateVirginia
Coordinates38.79261, -77.17901
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating72 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length52 ft (15.8 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic102,082 (2022)
Projected traffic119,485 by 2042
Trucks1%
Lanes on structure7
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$79 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Ramp F & I-495 NB over Backlick Run built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 2002.

What condition is Ramp F & I-495 NB over Backlick Run in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2024.

How much traffic does Ramp F & I-495 NB over Backlick Run carry?

About 102,082 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Ramp F & I-495 NB over Backlick Run?

The structure is 52 ft (15.8 m) long with a longest span of 13 ft (4 m).

Who owns Ramp F & I-495 NB over Backlick Run?

It is owned by the State Highway Agency.