I-90 over Wilson Creek
PoorKittitas County, Washington · 3.1 E JCT US 97 · Structure no. 0008200F0000000
- Built
- 1967
- 58 years old, rebuilt 2002
- Condition
- Poor
- inspected June 2024
- Type
- Slab
- Concrete Continuous
- Length
- 118 ft
- 3 main spans
- Daily traffic
- 15,658
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-90 over Wilson Creek is a concrete continuous slab carrying I-90 over Wilson Creek in Kittitas County, Washington. It was built in 1967 and reconstructed in 2002, so it is 58 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 15,658 vehicles a day, roughly 23% of them trucks, projected to reach 19,097 by 2039. The structure is 118 ft (36 m) long and 53 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| 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 over Wilson Creek built?
It was built in 1967, making it 58 years old in 2025. It was reconstructed in 2002.
What condition is I-90 over Wilson Creek 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 June 2024.
How much traffic does I-90 over Wilson Creek carry?
About 15,658 vehicles per day (2023 count), of which roughly 23% are trucks.
How long is I-90 over Wilson Creek?
The structure is 118 ft (36 m) long with a longest span of 46 ft (14 m) and a deck 53 ft wide.
Who owns I-90 over Wilson Creek?
It is owned by the State Highway Agency.