US Bridges

Sully Road over Route 50

Fair

Fairfax County, Virginia · 03.88FR I-66/03.60TO608 · Structure no. 000000000006256

Built
1990
35 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
250 ft
2 main spans
Daily traffic
92,438
2022 count
Owner
State
State Highway Agency

About this bridge

Sully Road over Route 50 is a steel stringer/multi-beam or girder carrying Sully Road over Route 50 in Fairfax County, Virginia. It was built in 1990, so it is 35 years old, younger 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 92,438 vehicles a day, roughly 1% of them trucks, projected to reach 124,751 by 2045. The structure is 250 ft (76.2 m) long and 232 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSully Road
CrossesRoute 50
Location03.88FR I-66/03.60TO608
RouteState Highway 28
CountyFairfax County
StateVirginia
Coordinates38.89711, -77.43937
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.1 US tons
Inventory rating61.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length250 ft (76.2 m)
Longest span124 ft (37.8 m)
Deck width232 ft (70.8 m)
Roadway width229 ft (69.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic92,438 (2022)
Projected traffic124,751 by 2045
Trucks1%
Lanes on structure10
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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$3 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Sully Road over Route 50 built?

It was built in 1990, making it 35 years old in 2025.

What condition is Sully Road over Route 50 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 October 2023.

How much traffic does Sully Road over Route 50 carry?

About 92,438 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Sully Road over Route 50?

The structure is 250 ft (76.2 m) long with a longest span of 124 ft (37.8 m) and a deck 232 ft wide.

Who owns Sully Road over Route 50?

It is owned by the State Highway Agency.