US Bridges

I-66 Wbl over Bull Run

Fair

Prince William County, Virginia · 01.60FR234/03.00TO29 · Structure no. 000000000006380

Built
1961
64 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
175 ft
3 main spans
Daily traffic
63,396
2022 count
Owner
State
State Highway Agency

About this bridge

I-66 Wbl over Bull Run is a steel continuous stringer/multi-beam or girder carrying I-66 Wbl over Bull Run in Prince William County, Virginia. It was built in 1961, so it is 64 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 63,396 vehicles a day, roughly 1% of them trucks, projected to reach 92,558 by 2045. The structure is 175 ft (53.3 m) long and 101 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-66 Wbl
CrossesBull Run
Location01.60FR234/03.00TO29
RouteInterstate 66
CountyPrince William County
StateVirginia
Coordinates38.81012, -77.49055
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating46 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length175 ft (53.3 m)
Longest span58 ft (17.7 m)
Deck width101 ft (30.9 m)
Roadway width98 ft (29.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic63,396 (2022)
Projected traffic92,558 by 2045
Trucks1%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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$300 million
NavigationNo navigation control on waterway

Frequently asked questions

When was I-66 Wbl over Bull Run built?

It was built in 1961, making it 64 years old in 2025.

What condition is I-66 Wbl over Bull 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 June 2023.

How much traffic does I-66 Wbl over Bull Run carry?

About 63,396 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is I-66 Wbl over Bull Run?

The structure is 175 ft (53.3 m) long with a longest span of 58 ft (17.7 m) and a deck 101 ft wide.

Who owns I-66 Wbl over Bull Run?

It is owned by the State Highway Agency.