US Bridges

Walnut Branch Road over Trib. of Sugarland Run

Good

Fairfax County, Virginia · 00.01FR7100/00.22TO7420 · Structure no. 000000000025829

Built
1999
26 years old
Condition
Good
inspected February 2024
Type
Culvert
Concrete
Length
27 ft
3 main spans
Daily traffic
1,853
2022 count
Owner
State
State Highway Agency

About this bridge

Walnut Branch Road over Trib. of Sugarland Run is a concrete culvert carrying Walnut Branch Road over Trib. of Sugarland Run in Fairfax County, Virginia. It was built in 1999, so it is 26 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 1,853 vehicles a day, roughly 1% of them trucks, projected to reach 2,003 by 2042. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesWalnut Branch Road
CrossesTrib. of Sugarland Run
Location00.01FR7100/00.22TO7420
RouteCounty Highway 7412
Coordinates38.97494, -77.36176
Functional classUrban Collector

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 2024
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating65 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,853 (2022)
Projected traffic2,003 by 2042
Trucks1%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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$100 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Walnut Branch Road over Trib. of Sugarland Run built?

It was built in 1999, making it 26 years old in 2025.

What condition is Walnut Branch Road over Trib. of Sugarland Run 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 2024.

How much traffic does Walnut Branch Road over Trib. of Sugarland Run carry?

About 1,853 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Walnut Branch Road over Trib. of Sugarland Run?

The structure is 27 ft (8.2 m) long with a longest span of 9 ft (2.7 m).

Who owns Walnut Branch Road over Trib. of Sugarland Run?

It is owned by the State Highway Agency.