US Bridges

Route 28 SB over I-66

Good

Fairfax County, Virginia · 0.30FR620 0.22TO66 EB · Structure no. 000000000031054

Built
2022
3 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Concrete Continuous
Length
406 ft
4 main spans
Daily traffic
36,900
2022 count
Owner
State
State Highway Agency

About this bridge

Route 28 SB over I-66 is a concrete continuous stringer/multi-beam or girder carrying Route 28 SB over I-66 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 36,900 vehicles a day, roughly 1% of them trucks, projected to reach 53,875 by 2045. The structure is 406 ft (123.8 m) long and 88 ft wide.

Location

Open in Google Maps
CarriesRoute 28 SB
CrossesI-66
Location0.30FR620 0.22TO66 EB
RouteState Highway 28
CountyFairfax County
StateVirginia
Coordinates38.84702, -77.4324
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation9: Superior to present desirable criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating82.3 US tons
Inventory rating63.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length406 ft (123.8 m)
Longest span138 ft (42.2 m)
Deck width88 ft (26.8 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deck99 ft (30.2 m)

Traffic and service

Average daily traffic36,900 (2022)
Projected traffic53,875 by 2045
Trucks1%
Lanes on structure5
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 Route 28 SB over I-66 built?

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

What condition is Route 28 SB over I-66 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 March 2023.

How much traffic does Route 28 SB over I-66 carry?

About 36,900 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Route 28 SB over I-66?

The structure is 406 ft (123.8 m) long with a longest span of 138 ft (42.2 m) and a deck 88 ft wide.

Who owns Route 28 SB over I-66?

It is owned by the State Highway Agency.