80th Ave over I-90
FairKing County, Washington · 4.4 E JCT I-5 · Structure no. 0013195A0000000
- Built
- 1988
- 37 years old
- Condition
- Fair
- inspected March 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 384 ft
- 4 main spans
- Daily traffic
- 3,102
- 2002 count
- Owner
- State
- State Highway Agency
About this bridge
80th Ave over I-90 is a concrete continuous box beam or girders - multiple carrying 80th Ave over I-90 in King County, Washington. It was built in 1988, so it is 37 years old, younger 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 3,102 vehicles a day, roughly 2% of them trucks, projected to reach 4,157 by 2036. The structure is 384 ft (117 m) long and 140 ft wide.
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 80th Ave over I-90 built?
It was built in 1988, making it 37 years old in 2025.
What condition is 80th Ave over I-90 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 80th Ave over I-90 carry?
About 3,102 vehicles per day (2002 count), of which roughly 2% are trucks.
How long is 80th Ave over I-90?
The structure is 384 ft (117 m) long with a longest span of 124 ft (37.8 m) and a deck 140 ft wide.
Who owns 80th Ave over I-90?
It is owned by the State Highway Agency.