US Bridges

Kirby Road over Old Dominion Drive

Fair

Fairfax County, Virginia · 00.10FR690/00.20TO689 · Structure no. 000000000006855

Built
1981
44 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
92 ft
1 main span
Daily traffic
7,625
2022 count
Owner
State
State Highway Agency

About this bridge

Kirby Road over Old Dominion Drive is a steel stringer/multi-beam or girder carrying Kirby Road over Old Dominion Drive in Fairfax County, Virginia. It was built in 1981, so it is 44 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 5 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 7,625 vehicles a day, roughly 1% of them trucks, projected to reach 9,044 by 2042. The structure is 92 ft (28 m) long and 40 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesKirby Road
CrossesOld Dominion Drive
Location00.10FR690/00.20TO689
RouteCounty Highway 695
CountyFairfax County
StateVirginia
Coordinates38.92139, -77.15363
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment7: Better than present minimum criteria
Operating rating65 US tons
Inventory rating50.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length92 ft (28 m)
Longest span92 ft (28 m)
Deck width40 ft (12.1 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,625 (2022)
Projected traffic9,044 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$150 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Kirby Road over Old Dominion Drive built?

It was built in 1981, making it 44 years old in 2025.

What condition is Kirby Road over Old Dominion Drive 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 January 2024.

How much traffic does Kirby Road over Old Dominion Drive carry?

About 7,625 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Kirby Road over Old Dominion Drive?

The structure is 92 ft (28 m) long with a longest span of 92 ft (28 m) and a deck 40 ft wide.

Who owns Kirby Road over Old Dominion Drive?

It is owned by the State Highway Agency.