US Bridges

Wilson Blvd. over Four Mile Run

Fair

Arlington County, Virginia · 1.10FR120/0.90TO7 · Structure no. 000000000000013

Built
1994
31 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
46 ft
1 main span
Daily traffic
9,173
2022 count
Owner
County
County Highway Agency

About this bridge

Wilson Blvd. over Four Mile Run is a steel stringer/multi-beam or girder carrying Wilson Blvd. over Four Mile Run in Arlington County, Virginia. It was built in 1994, so it is 31 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 9,173 vehicles a day, roughly 8% of them trucks, projected to reach 10,228 by 2042. The structure is 46 ft (14 m) long and 76 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesWilson Blvd.
CrossesFour Mile Run
Location1.10FR120/0.90TO7
RouteCounty Highway 0
CountyArlington County
StateVirginia
Coordinates38.87501, -77.13357
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.2 US tons
Inventory rating37.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length46 ft (14 m)
Longest span45 ft (13.6 m)
Deck width76 ft (23.2 m)
Roadway width59 ft (18 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,173 (2022)
Projected traffic10,228 by 2042
Trucks8%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Wilson Blvd. over Four Mile Run built?

It was built in 1994, making it 31 years old in 2025.

What condition is Wilson Blvd. over Four Mile 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 March 2024.

How much traffic does Wilson Blvd. over Four Mile Run carry?

About 9,173 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Wilson Blvd. over Four Mile Run?

The structure is 46 ft (14 m) long with a longest span of 45 ft (13.6 m) and a deck 76 ft wide.

Who owns Wilson Blvd. over Four Mile Run?

It is owned by the County Highway Agency.