US Bridges

Sully Road over Tributary Horsepen Run

Fair

Loudoun County, Virginia · 00.25FR267/00.22TO209 · Structure no. 000000000011105

Built
1963
62 years old
Condition
Fair
inspected May 2024
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
184,788
2022 count
Owner
State
State Highway Agency

About this bridge

Sully Road over Tributary Horsepen Run is a concrete culvert carrying Sully Road over Tributary Horsepen Run in Loudoun County, Virginia. It was built in 1963, so it is 62 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 184,788 vehicles a day, roughly 1% of them trucks, projected to reach 269,790 by 2042. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 34.2 mi (55 km).

Location

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CarriesSully Road
CrossesTributary Horsepen Run
Location00.25FR267/00.22TO209
RouteState Highway 28
CountyLoudoun County
StateVirginia
Coordinates38.96667, -77.42889
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating61.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.4 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 traffic184,788 (2022)
Projected traffic269,790 by 2042
Trucks1%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.2 mi (55 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$100 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Sully Road over Tributary Horsepen Run built?

It was built in 1963, making it 62 years old in 2025.

What condition is Sully Road over Tributary Horsepen Run 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 May 2024.

How much traffic does Sully Road over Tributary Horsepen Run carry?

About 184,788 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Sully Road over Tributary Horsepen Run?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns Sully Road over Tributary Horsepen Run?

It is owned by the State Highway Agency.