US Bridges

Ox Road Sbl over NS Railway

Fair

Fairfax County, Virginia · 00.13FR643/00.18TO660 · Structure no. 000000000006449

Built
1948
77 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
185 ft
3 main spans
Daily traffic
13,520
2022 count
Owner
State
State Highway Agency

About this bridge

Ox Road Sbl over NS Railway is a steel continuous stringer/multi-beam or girder carrying Ox Road Sbl over NS Railway in Fairfax County, Virginia. It was built in 1948, so it is 77 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 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 13,520 vehicles a day, projected to reach 19,741 by 2042. The structure is 185 ft (56.4 m) long and 31 ft wide.

Location

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CarriesOx Road Sbl
CrossesNS Railway
Location00.13FR643/00.18TO660
RouteState Highway 123
CountyFairfax County
StateVirginia
Coordinates38.80043, -77.32552
Functional classUrban Other Principal 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 21 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 geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.3 US tons
Inventory rating53 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length185 ft (56.4 m)
Longest span70 ft (21.3 m)
Deck width31 ft (9.4 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,520 (2022)
Projected traffic19,741 by 2042
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed—
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$145 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ox Road Sbl over NS Railway built?

It was built in 1948, making it 77 years old in 2025.

What condition is Ox Road Sbl over NS Railway 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 June 2024.

How much traffic does Ox Road Sbl over NS Railway carry?

About 13,520 vehicles per day (2022 count).

How long is Ox Road Sbl over NS Railway?

The structure is 185 ft (56.4 m) long with a longest span of 70 ft (21.3 m) and a deck 31 ft wide.

Who owns Ox Road Sbl over NS Railway?

It is owned by the State Highway Agency.