US Bridges

NE 80th ST over I-5 I-5 Exp Lns Ramps

Fair

King County, Washington · 0.4 N JCT SR 522 · Structure no. 0007156B0000000

Built
1964
61 years old
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
302 ft
4 main spans
Daily traffic
31,375
2021 count
Owner
State
State Highway Agency

About this bridge

NE 80th ST over I-5 I-5 Exp Lns Ramps is a concrete continuous box beam or girders - multiple carrying NE 80th ST over I-5 I-5 Exp Lns Ramps 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 31,375 vehicles a day, roughly 6% of them trucks, projected to reach 51,411 by 2041. The structure is 302 ft (91.9 m) long and 40 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNE 80th ST
CrossesI-5 I-5 Exp Lns Ramps
Location0.4 N JCT SR 522
RouteCity Street 0
Coordinates47.68682, -122.32686
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87 US tons
Inventory rating51 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length302 ft (91.9 m)
Longest span96 ft (29.2 m)
Deck width40 ft (12.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic31,375 (2021)
Projected traffic51,411 by 2041
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$4.3 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was NE 80th ST over I-5 I-5 Exp Lns Ramps built?

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

What condition is NE 80th ST over I-5 I-5 Exp Lns Ramps 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 NE 80th ST over I-5 I-5 Exp Lns Ramps carry?

About 31,375 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is NE 80th ST over I-5 I-5 Exp Lns Ramps?

The structure is 302 ft (91.9 m) long with a longest span of 96 ft (29.2 m) and a deck 40 ft wide.

Who owns NE 80th ST over I-5 I-5 Exp Lns Ramps?

It is owned by the State Highway Agency.