US Bridges

I-66 Ramp Seh over I-495 Hot & 66 Rmps

Good

Fairfax County, Virginia · 02.64 FR 243 / 01.50 to 7 · Structure no. 000000000028664

Built
2010
15 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
423 ft
4 main spans
Daily traffic
75,012
2022 count
Owner
State
State Highway Agency

About this bridge

I-66 Ramp Seh over I-495 Hot & 66 Rmps is a steel continuous stringer/multi-beam or girder carrying I-66 Ramp Seh over I-495 Hot & 66 Rmps in Fairfax County, Virginia. It was built in 2010, so it is 15 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 75,012 vehicles a day, roughly 1% of them trucks, projected to reach 109,518 by 2042. The structure is 423 ft (128.9 m) long and 85 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesI-66 Ramp Seh
CrossesI-495 Hot & 66 Rmps
Location02.64 FR 243 / 01.50 to 7
RouteInterstate 66
CountyFairfax County
StateVirginia
Coordinates38.88559, -77.22063
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 22 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87.1 US tons
Inventory rating67.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length423 ft (128.9 m)
Longest span155 ft (47.3 m)
Deck width85 ft (25.8 m)
Roadway width83 ft (25.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75,012 (2022)
Projected traffic109,518 by 2042
Trucks1%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed9.9 mi (16 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$2.5 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-66 Ramp Seh over I-495 Hot & 66 Rmps built?

It was built in 2010, making it 15 years old in 2025.

What condition is I-66 Ramp Seh over I-495 Hot & 66 Rmps 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 October 2024.

How much traffic does I-66 Ramp Seh over I-495 Hot & 66 Rmps carry?

About 75,012 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is I-66 Ramp Seh over I-495 Hot & 66 Rmps?

The structure is 423 ft (128.9 m) long with a longest span of 155 ft (47.3 m) and a deck 85 ft wide.

Who owns I-66 Ramp Seh over I-495 Hot & 66 Rmps?

It is owned by the State Highway Agency.