US Bridges

Arlington Blvd. over Four Mile Run

Fair

Arlington County, Virginia · 01.29FR120 / 1.80TO7 · Structure no. 000000000000158

Built
1987
38 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
252 ft
4 main spans
Daily traffic
47,483
2022 count
Owner
State
State Highway Agency

About this bridge

Arlington Blvd. over Four Mile Run is a steel stringer/multi-beam or girder carrying Arlington Blvd. over Four Mile Run in Arlington County, Virginia. It was built in 1987, so it is 38 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 47,483 vehicles a day, roughly 1% of them trucks, projected to reach 47,682 by 2045. The structure is 252 ft (76.8 m) long and 105 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesArlington Blvd.
CrossesFour Mile Run
Location01.29FR120 / 1.80TO7
RouteU.S. Route 50
CountyArlington County
StateVirginia
Coordinates38.86643, -77.12408
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 23 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating41.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length252 ft (76.8 m)
Longest span59 ft (18 m)
Deck width105 ft (31.9 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic47,483 (2022)
Projected traffic47,682 by 2045
Trucks1%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$150 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Arlington Blvd. over Four Mile Run built?

It was built in 1987, making it 38 years old in 2025.

What condition is Arlington 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 May 2023.

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

About 47,483 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Arlington Blvd. over Four Mile Run?

The structure is 252 ft (76.8 m) long with a longest span of 59 ft (18 m) and a deck 105 ft wide.

Who owns Arlington Blvd. over Four Mile Run?

It is owned by the State Highway Agency.