US Bridges

Capital Beltway over Holmes Run

Fair

Fairfax County, Virginia · 01.14FR50/00.14TO66 · Structure no. 000000000006603

Built
1963
62 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete
Length
27 ft
3 main spans
Daily traffic
75,288
2022 count
Owner
State
State Highway Agency

About this bridge

Capital Beltway over Holmes Run is a concrete culvert carrying Capital Beltway over Holmes Run in Fairfax County, Virginia. It was built in 1963, so it is 62 years old, older 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 75,288 vehicles a day, roughly 1% of them trucks, projected to reach 83,946 by 2045. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesCapital Beltway
CrossesHolmes Run
Location01.14FR50/00.14TO66
RouteInterstate 495
CountyFairfax County
StateVirginia
Coordinates38.88249, -77.22132
Functional classUrban Principal Arterial - Interstate

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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating63.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75,288 (2022)
Projected traffic83,946 by 2045
Trucks1%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$2.5 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Capital Beltway over Holmes Run built?

It was built in 1963, making it 62 years old in 2025.

What condition is Capital Beltway over Holmes 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 April 2023.

How much traffic does Capital Beltway over Holmes Run carry?

About 75,288 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Capital Beltway over Holmes Run?

The structure is 27 ft (8.2 m) long with a longest span of 8 ft (2.4 m).

Who owns Capital Beltway over Holmes Run?

It is owned by the State Highway Agency.