US Bridges

Aubrey Patent Dr. over Big Rocky Run

Fair

Fairfax County, Virginia · 0.40FR7345 0.08TO7005 · Structure no. 000000000007094

Built
1986
39 years old
Condition
Fair
inspected February 2023
Type
Culvert
Concrete
Length
64 ft
6 main spans
Daily traffic
2,338
2022 count
Owner
State
State Highway Agency

About this bridge

Aubrey Patent Dr. over Big Rocky Run is a concrete culvert carrying Aubrey Patent Dr. over Big Rocky Run in Fairfax County, Virginia. It was built in 1986, so it is 39 years old, younger than the Virginia average of 50.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,338 vehicles a day, roughly 2% of them trucks, projected to reach 2,590 by 2045. The structure is 64 ft (19.5 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesAubrey Patent Dr.
CrossesBig Rocky Run
Location0.40FR7345 0.08TO7005
RouteCounty Highway 7346
CountyFairfax County
StateVirginia
Coordinates38.84848, -77.44807
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81 US tons
Inventory rating48 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans6
Design loadHS 20
Structure length64 ft (19.5 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,338 (2022)
Projected traffic2,590 by 2045
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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$600 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Aubrey Patent Dr. over Big Rocky Run built?

It was built in 1986, making it 39 years old in 2025.

What condition is Aubrey Patent Dr. over Big Rocky Run in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2023.

How much traffic does Aubrey Patent Dr. over Big Rocky Run carry?

About 2,338 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Aubrey Patent Dr. over Big Rocky Run?

The structure is 64 ft (19.5 m) long with a longest span of 10 ft (3 m).

Who owns Aubrey Patent Dr. over Big Rocky Run?

It is owned by the State Highway Agency.