US Bridges

Fairfax Co. Pkwy. over Flatlick Branch

Good

Fairfax County, Virginia · 00.20FR7155/00.05TO7140 · Structure no. 000000000007085

Built
1988
37 years old
Condition
Good
inspected February 2023
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
52,433
2022 count
Owner
State
State Highway Agency

About this bridge

Fairfax Co. Pkwy. over Flatlick Branch is a concrete culvert carrying Fairfax Co. Pkwy. over Flatlick Branch in Fairfax County, Virginia. It was built in 1988, so it is 37 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 52,433 vehicles a day, projected to reach 58,463 by 2045. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesFairfax Co. Pkwy.
CrossesFlatlick Branch
Location00.20FR7155/00.05TO7140
RouteState Highway 286
CountyFairfax County
StateVirginia
Coordinates38.89931, -77.40437
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic52,433 (2022)
Projected traffic58,463 by 2045
Trucks0%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$150 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Fairfax Co. Pkwy. over Flatlick Branch built?

It was built in 1988, making it 37 years old in 2025.

What condition is Fairfax Co. Pkwy. over Flatlick Branch 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 February 2023.

How much traffic does Fairfax Co. Pkwy. over Flatlick Branch carry?

About 52,433 vehicles per day (2022 count).

How long is Fairfax Co. Pkwy. over Flatlick Branch?

The structure is 32 ft (9.8 m) long with a longest span of 11 ft (3.4 m).

Who owns Fairfax Co. Pkwy. over Flatlick Branch?

It is owned by the State Highway Agency.