US Bridges

RTE.15 Nbl. over Little Bull Run

Good

Prince William County, Virginia · 00.43FR66/00.35TO625 · Structure no. 000000000028866

Built
2008
17 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
79 ft
1 main span
Daily traffic
35,366
2022 count
Owner
State
State Highway Agency

About this bridge

RTE.15 Nbl. over Little Bull Run is a steel stringer/multi-beam or girder carrying RTE.15 Nbl. over Little Bull Run in Prince William County, Virginia. It was built in 2008, so it is 17 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 35,366 vehicles a day, roughly 1% of them trucks, projected to reach 51,634 by 2042. The structure is 79 ft (24.1 m) long and 53 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesRTE.15 Nbl.
CrossesLittle Bull Run
Location00.43FR66/00.35TO625
RouteU.S. Route 15
CountyPrince William County
StateVirginia
Coordinates38.82245, -77.63452
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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.2 US tons
Inventory rating31 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length79 ft (24.1 m)
Longest span75 ft (22.9 m)
Deck width53 ft (16.2 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35,366 (2022)
Projected traffic51,634 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$175 million
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE.15 Nbl. over Little Bull Run built?

It was built in 2008, making it 17 years old in 2025.

What condition is RTE.15 Nbl. over Little Bull Run 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 June 2024.

How much traffic does RTE.15 Nbl. over Little Bull Run carry?

About 35,366 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is RTE.15 Nbl. over Little Bull Run?

The structure is 79 ft (24.1 m) long with a longest span of 75 ft (22.9 m) and a deck 53 ft wide.

Who owns RTE.15 Nbl. over Little Bull Run?

It is owned by the State Highway Agency.