I-90 WB over So Fk Snoqulmie R
PoorKing County, Washington · 21.2 E JCT SR 202 · Structure no. 0008916A0000000
- Built
- 1971
- 54 years old
- Condition
- Poor
- inspected May 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 394 ft
- 4 main spans
- Daily traffic
- 17,601
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-90 WB over So Fk Snoqulmie R is a concrete continuous box beam or girders - multiple carrying I-90 WB over So Fk Snoqulmie R in King County, Washington. It was built in 1971, so it is 54 years old, older than the Washington average of 49.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 17,601 vehicles a day, roughly 18% of them trucks, projected to reach 23,754 by 2039. The structure is 394 ft (120.1 m) long and 71 ft wide. If it were closed, the detour would be 8.1 mi (13 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-90 WB over So Fk Snoqulmie R built?
It was built in 1971, making it 54 years old in 2025.
What condition is I-90 WB over So Fk Snoqulmie R in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2024.
How much traffic does I-90 WB over So Fk Snoqulmie R carry?
About 17,601 vehicles per day (2023 count), of which roughly 18% are trucks.
How long is I-90 WB over So Fk Snoqulmie R?
The structure is 394 ft (120.1 m) long with a longest span of 109 ft (33.2 m) and a deck 71 ft wide.
Who owns I-90 WB over So Fk Snoqulmie R?
It is owned by the State Highway Agency.