US Bridges

Thomas Avenue over Sugarland Run

PoorClosed to traffic

Loudoun County, Virginia · 00.10FR821/00.10TO793 · Structure no. 000000000011375

Built
1970
55 years old
Condition
Poor
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
60 ft
3 main spans
Daily traffic
1,687
2014 count
Owner
State
State Highway Agency

About this bridge

Thomas Avenue over Sugarland Run is a steel stringer/multi-beam or girder carrying Thomas Avenue over Sugarland Run in Loudoun 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 poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: closed to all traffic.

It carries about 1,687 vehicles a day, projected to reach 1,948 by 2045. The structure is 60 ft (18.3 m) long and 21 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesThomas Avenue
CrossesSugarland Run
Location00.10FR821/00.10TO793
RouteCounty Highway 792
Coordinates39.02058, -77.36789
Functional classUrban Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusClosed to all traffic
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry0: Immediate repair necessary to put back in service
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating17.9 US tons
Inventory rating13.8 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans3
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span21 ft (6.4 m)
Deck width21 ft (6.4 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,687 (2014)
Projected traffic1,948 by 2045
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$450 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Thomas Avenue over Sugarland Run built?

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

What condition is Thomas Avenue over Sugarland Run in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.

How much traffic does Thomas Avenue over Sugarland Run carry?

About 1,687 vehicles per day (2014 count).

How long is Thomas Avenue over Sugarland Run?

The structure is 60 ft (18.3 m) long with a longest span of 21 ft (6.4 m) and a deck 21 ft wide.

Who owns Thomas Avenue over Sugarland Run?

It is owned by the State Highway Agency.