US Bridges

Follin Lane over Wolftrap Creek

Fair

Fairfax County, Virginia · 00.13 Vega LA/00.07 Alma · Structure no. 000000000022502

Built
1970
55 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
28 ft
4 main spans
Daily traffic
4,414
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Follin Lane over Wolftrap Creek is a concrete culvert carrying Follin Lane over Wolftrap Creek in Fairfax County, Virginia. It was built in 1970, so it is 55 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 4,414 vehicles a day, roughly 1% of them trucks, projected to reach 6,444 by 2042. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesFollin Lane
CrossesWolftrap Creek
Location00.13 Vega LA/00.07 Alma
RouteCity Street 0
CountyFairfax County
StateVirginia
Coordinates38.90466, -77.24709
Functional classUrban Collector

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 inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating39 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span7 ft (2.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,414 (2022)
Projected traffic6,444 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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$2.5 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Follin Lane over Wolftrap Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Follin Lane over Wolftrap Creek 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 April 2024.

How much traffic does Follin Lane over Wolftrap Creek carry?

About 4,414 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Follin Lane over Wolftrap Creek?

The structure is 28 ft (8.5 m) long with a longest span of 7 ft (2.1 m).

Who owns Follin Lane over Wolftrap Creek?

It is owned by the Town or Township Highway Agency.