US Bridges

I-66 Cd Road over Stringfellow Road

Good

Fairfax County, Virginia · 1.50FR28 00.77TO286 · Structure no. 000000000030943

Built
2022
3 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
156 ft
1 main span
Daily traffic
49,328
2021 count
Owner
State
State Highway Agency

About this bridge

I-66 Cd Road over Stringfellow Road is a prestressed concrete stringer/multi-beam or girder carrying I-66 Cd Road over Stringfellow Road in Fairfax County, Virginia. It was built in 2022, so it is 3 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 49,328 vehicles a day, projected to reach 54,232 by 2040. The structure is 156 ft (47.5 m) long and 78 ft wide.

Location

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CarriesI-66 Cd Road
CrossesStringfellow Road
Location1.50FR28 00.77TO286
RouteInterstate 66
CountyFairfax County
StateVirginia
Coordinates38.85133, -77.40294
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 inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating85.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length156 ft (47.5 m)
Longest span153 ft (46.6 m)
Deck width78 ft (23.8 m)
Roadway width36 ft (11 m)
Vertical clearance over deck99 ft (30.2 m)

Traffic and service

Average daily traffic49,328 (2021)
Projected traffic54,232 by 2040
Trucks—
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-66 Cd Road over Stringfellow Road built?

It was built in 2022, making it 3 years old in 2025.

What condition is I-66 Cd Road over Stringfellow Road 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 September 2024.

How much traffic does I-66 Cd Road over Stringfellow Road carry?

About 49,328 vehicles per day (2021 count).

How long is I-66 Cd Road over Stringfellow Road?

The structure is 156 ft (47.5 m) long with a longest span of 153 ft (46.6 m) and a deck 78 ft wide.

Who owns I-66 Cd Road over Stringfellow Road?

It is owned by the State Highway Agency.