US Bridges

Marshall Lake Dr. over South Fork Run

Good

Fairfax County, Virginia · 00.65FR0672/00.02TO0000 · Structure no. 000000000028722

Built
2004
21 years old
Condition
Good
inspected February 2024
Type
Arch - Deck
Concrete
Length
34 ft
1 main span
Daily traffic
566
2009 count
Owner
State
State Highway Agency

About this bridge

Marshall Lake Dr. over South Fork Run is a concrete arch - deck carrying Marshall Lake Dr. over South Fork Run in Fairfax County, Virginia. It was built in 2004, so it is 21 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 566 vehicles a day, projected to reach 668 by 2042. The structure is 34 ft (10.4 m) long and 96 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesMarshall Lake Dr.
CrossesSouth Fork Run
Location00.65FR0672/00.02TO0000
RouteCounty Highway 10147
CountyFairfax County
StateVirginia
Coordinates38.90578, -77.34288
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
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
Deck geometry7: 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 typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span32 ft (9.8 m)
Deck width96 ft (29.3 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic566 (2009)
Projected traffic668 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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$2.5 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Marshall Lake Dr. over South Fork Run built?

It was built in 2004, making it 21 years old in 2025.

What condition is Marshall Lake Dr. over South Fork 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 Marshall Lake Dr. over South Fork Run carry?

About 566 vehicles per day (2009 count).

How long is Marshall Lake Dr. over South Fork Run?

The structure is 34 ft (10.4 m) long with a longest span of 32 ft (9.8 m) and a deck 96 ft wide.

Who owns Marshall Lake Dr. over South Fork Run?

It is owned by the State Highway Agency.