US Bridges

Dumfries Road over Occoquan River (sbl)

Good

Prince William County, Virginia · 00.15FR688/01.10TO643 · Structure no. 000000000026325

Built
2002
23 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
515 ft
4 main spans
Daily traffic
18,721
2022 count
Owner
State
State Highway Agency

About this bridge

Dumfries Road over Occoquan River (sbl) is a steel continuous stringer/multi-beam or girder carrying Dumfries Road over Occoquan River (sbl) in Prince William County, Virginia. It was built in 2002, so it is 23 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 18,721 vehicles a day, roughly 1% of them trucks, projected to reach 27,334 by 2042. The structure is 515 ft (157 m) long and 53 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

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CarriesDumfries Road
CrossesOccoquan River (sbl)
Location00.15FR688/01.10TO643
RouteState Highway 234
CountyPrince William County
StateVirginia
Coordinates38.70481, -77.44603
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.7 US tons
Inventory rating53.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length515 ft (157 m)
Longest span178 ft (54.3 m)
Deck width53 ft (16.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,721 (2022)
Projected traffic27,334 by 2042
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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$210 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Dumfries Road over Occoquan River (sbl) built?

It was built in 2002, making it 23 years old in 2025.

What condition is Dumfries Road over Occoquan River (sbl) 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 Dumfries Road over Occoquan River (sbl) carry?

About 18,721 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Dumfries Road over Occoquan River (sbl)?

The structure is 515 ft (157 m) long with a longest span of 178 ft (54.3 m) and a deck 53 ft wide.

Who owns Dumfries Road over Occoquan River (sbl)?

It is owned by the State Highway Agency.