US Bridges

234 Bypass Sbl over I-66

Good

Prince William County, Virginia · 00.60FR29/00.37TO621 · Structure no. 000000000024787

Built
1997
28 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
359 ft
2 main spans
Daily traffic
5,790
2022 count
Owner
State
State Highway Agency

About this bridge

234 Bypass Sbl over I-66 is a steel continuous stringer/multi-beam or girder carrying 234 Bypass Sbl over I-66 in Prince William County, Virginia. It was built in 1997, so it is 28 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 5,790 vehicles a day, roughly 8% of them trucks, projected to reach 7,862 by 2042. The structure is 359 ft (109.4 m) long and 55 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Carries234 Bypass Sbl
CrossesI-66
Location00.60FR29/00.37TO621
RouteInterstate 234
Coordinates38.79752, -77.57174
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 inspectionDecember 2023
Inspection intervalevery 22 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.2 US tons
Inventory rating55.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length359 ft (109.4 m)
Longest span187 ft (57 m)
Deck width55 ft (16.9 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,790 (2022)
Projected traffic7,862 by 2042
Trucks8%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$150 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was 234 Bypass Sbl over I-66 built?

It was built in 1997, making it 28 years old in 2025.

What condition is 234 Bypass Sbl 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 December 2023.

How much traffic does 234 Bypass Sbl over I-66 carry?

About 5,790 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is 234 Bypass Sbl over I-66?

The structure is 359 ft (109.4 m) long with a longest span of 187 ft (57 m) and a deck 55 ft wide.

Who owns 234 Bypass Sbl over I-66?

It is owned by the State Highway Agency.