US Bridges

IS-00066-W over 00-06780 Westmoreland ST

Fair

Arlington County, Virginia · 01.90FR7/00.42TO237 · Structure no. 000000000000181

Built
1981
44 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
226 ft
3 main spans
Daily traffic
55,900
2022 count
Owner
State
State Highway Agency

About this bridge

IS-00066-W over 00-06780 Westmoreland ST is a steel stringer/multi-beam or girder carrying IS-00066-W over 00-06780 Westmoreland ST in Arlington 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 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 55,900 vehicles a day, roughly 1% of them trucks, projected to reach 79,522 by 2045. The structure is 226 ft (68.9 m) long and 87 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIS-00066-W
Crosses00-06780 Westmoreland ST
Location01.90FR7/00.42TO237
RouteInterstate 66
CountyArlington County
StateVirginia
Coordinates38.89227, -77.16657
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 23 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating54 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length226 ft (68.9 m)
Longest span92 ft (28 m)
Deck width87 ft (26.5 m)
Roadway width84 ft (25.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic55,900 (2022)
Projected traffic79,522 by 2045
Trucks1%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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$50 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was IS-00066-W over 00-06780 Westmoreland ST built?

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

What condition is IS-00066-W over 00-06780 Westmoreland ST 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 August 2023.

How much traffic does IS-00066-W over 00-06780 Westmoreland ST carry?

About 55,900 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is IS-00066-W over 00-06780 Westmoreland ST?

The structure is 226 ft (68.9 m) long with a longest span of 92 ft (28 m) and a deck 87 ft wide.

Who owns IS-00066-W over 00-06780 Westmoreland ST?

It is owned by the State Highway Agency.