US Bridges

Fairfax Co. Pkwy. over Piney Branch

Good

Fairfax County, Virginia · 00.90FR654/00.40TO620 · Structure no. 000000000024697

Built
1994
31 years old
Condition
Good
inspected February 2023
Type
Culvert
Concrete
Length
43 ft
4 main spans
Daily traffic
67,978
2022 count
Owner
State
State Highway Agency

About this bridge

Fairfax Co. Pkwy. over Piney Branch is a concrete culvert carrying Fairfax Co. Pkwy. over Piney Branch in Fairfax County, Virginia. It was built in 1994, so it is 31 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 67,978 vehicles a day, roughly 1% of them trucks, projected to reach 95,727 by 2045. The structure is 43 ft (13.1 m) long. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesFairfax Co. Pkwy.
CrossesPiney Branch
Location00.90FR654/00.40TO620
RouteState Highway 286
CountyFairfax County
StateVirginia
Coordinates38.82384, -77.36295
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 rating72 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length43 ft (13.1 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic67,978 (2022)
Projected traffic95,727 by 2045
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 Piney Branch built?

It was built in 1994, making it 31 years old in 2025.

What condition is Fairfax Co. Pkwy. over Piney 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 Piney Branch carry?

About 67,978 vehicles per day (2022 count), of which roughly 1% are trucks.

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

The structure is 43 ft (13.1 m) long with a longest span of 10 ft (3 m).

Who owns Fairfax Co. Pkwy. over Piney Branch?

It is owned by the State Highway Agency.