US Bridges

Stringfellow RD over Little Rocky Run

Good

Fairfax County, Virginia · 00.17FR7988/00.10TO29 · Structure no. 000000000025501

Built
1998
27 years old
Condition
Good
inspected March 2024
Type
Culvert
Concrete
Length
48 ft
4 main spans
Daily traffic
16,151
2022 count
Owner
State
State Highway Agency

About this bridge

Stringfellow RD over Little Rocky Run is a concrete culvert carrying Stringfellow RD over Little Rocky Run in Fairfax County, Virginia. It was built in 1998, so it is 27 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 16,151 vehicles a day, roughly 1% of them trucks, projected to reach 19,772 by 2042. The structure is 48 ft (14.6 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesStringfellow RD
CrossesLittle Rocky Run
Location00.17FR7988/00.10TO29
RouteCounty Highway 645
Coordinates38.84164, -77.40437
Functional classUrban Minor 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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87 US tons
Inventory rating52 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length48 ft (14.6 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,151 (2022)
Projected traffic19,772 by 2042
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 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
NavigationNo navigation control on waterway

Frequently asked questions

When was Stringfellow RD over Little Rocky Run built?

It was built in 1998, making it 27 years old in 2025.

What condition is Stringfellow RD over Little Rocky 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 March 2024.

How much traffic does Stringfellow RD over Little Rocky Run carry?

About 16,151 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Stringfellow RD over Little Rocky Run?

The structure is 48 ft (14.6 m) long with a longest span of 12 ft (3.7 m).

Who owns Stringfellow RD over Little Rocky Run?

It is owned by the State Highway Agency.