I-90 over S Fk Snoqualmie R
PoorKing County, Washington · 7.3 E JCT SR 202 · Structure no. 0009576C0000000
- Built
- 1974
- 51 years old
- Condition
- Poor
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 316 ft
- 3 main spans
- Daily traffic
- 356
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-90 over S Fk Snoqualmie R is a prestressed concrete continuous stringer/multi-beam or girder carrying I-90 over S Fk Snoqualmie R in King County, Washington. It was built in 1974, so it is 51 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 3 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 356 vehicles a day, roughly 20% of them trucks, projected to reach 519 by 2039. The structure is 316 ft (96.3 m) long and 29 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-90 over S Fk Snoqualmie R built?
It was built in 1974, making it 51 years old in 2025.
What condition is I-90 over S Fk Snoqualmie 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 October 2023.
How much traffic does I-90 over S Fk Snoqualmie R carry?
About 356 vehicles per day (2023 count), of which roughly 20% are trucks.
How long is I-90 over S Fk Snoqualmie R?
The structure is 316 ft (96.3 m) long with a longest span of 134 ft (40.8 m) and a deck 29 ft wide.
Who owns I-90 over S Fk Snoqualmie R?
It is owned by the State Highway Agency.