US Bridges

5th Ave NE over I-5 I-5 Express Lanes

Fair

King County, Washington · 0.2 N JCT SR 522 · Structure no. 0007156A0000000

Built
1964
61 years old
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
326 ft
3 main spans
Daily traffic
11,036
2021 count
Owner
State
State Highway Agency

About this bridge

5th Ave NE over I-5 I-5 Express Lanes is a concrete continuous box beam or girders - multiple carrying 5th Ave NE over I-5 I-5 Express Lanes in King County, Washington. It was built in 1964, so it is 61 years old, older than the Washington average of 49.8 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 11,036 vehicles a day, roughly 5% of them trucks, projected to reach 16,953 by 2041. The structure is 326 ft (99.4 m) long and 60 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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Carries5th Ave NE
CrossesI-5 I-5 Express Lanes
Location0.2 N JCT SR 522
RouteCity Street 0
CountyKing County
StateWashington
Coordinates47.68367, -122.32292
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.9 US tons
Inventory rating46 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length326 ft (99.4 m)
Longest span121 ft (37 m)
Deck width60 ft (18.2 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,036 (2021)
Projected traffic16,953 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$11.2 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was 5th Ave NE over I-5 I-5 Express Lanes built?

It was built in 1964, making it 61 years old in 2025.

What condition is 5th Ave NE over I-5 I-5 Express Lanes 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 5th Ave NE over I-5 I-5 Express Lanes carry?

About 11,036 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is 5th Ave NE over I-5 I-5 Express Lanes?

The structure is 326 ft (99.4 m) long with a longest span of 121 ft (37 m) and a deck 60 ft wide.

Who owns 5th Ave NE over I-5 I-5 Express Lanes?

It is owned by the State Highway Agency.