US Bridges

I-66 EB over Stringfellow RD

Good

Fairfax County, Virginia · .55 FR 28 1.61 to 50 · Structure no. 000000000030950

Built
2021
4 years old
Condition
Good
inspected November 2024
Type
Tee Beam
Prestressed Concrete
Length
155 ft
1 main span
Daily traffic
59,345
2022 count
Owner
State
State Highway Agency

About this bridge

I-66 EB over Stringfellow RD is a prestressed concrete tee beam carrying I-66 EB over Stringfellow RD in Fairfax County, Virginia. It was built in 2021, so it is 4 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 59,345 vehicles a day, roughly 1% of them trucks, projected to reach 66,170 by 2045. The structure is 155 ft (47.3 m) long and 92 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesI-66 EB
CrossesStringfellow RD
Location.55 FR 28 1.61 to 50
RouteInterstate 66
CountyFairfax County
StateVirginia
Coordinates38.85173, -77.40299
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 22 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating99 US tons
Inventory rating75.9 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length155 ft (47.3 m)
Longest span155 ft (47.3 m)
Deck width92 ft (28 m)
Roadway width88 ft (26.8 m)
Vertical clearance over deck99 ft (30.2 m)

Traffic and service

Average daily traffic59,345 (2022)
Projected traffic66,170 by 2045
Trucks1%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-66 EB over Stringfellow RD built?

It was built in 2021, making it 4 years old in 2025.

What condition is I-66 EB over Stringfellow RD 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 November 2024.

How much traffic does I-66 EB over Stringfellow RD carry?

About 59,345 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is I-66 EB over Stringfellow RD?

The structure is 155 ft (47.3 m) long with a longest span of 155 ft (47.3 m) and a deck 92 ft wide.

Who owns I-66 EB over Stringfellow RD?

It is owned by the State Highway Agency.