I-90 over Dry Creek
PoorKittitas County, Washington · 18.9 E JCT SR 970 · Structure no. 0008036D0000000
- Built
- 1967
- 58 years old
- Condition
- Poor
- inspected June 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 390 ft
- 5 main spans
- Daily traffic
- 15,974
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-90 over Dry Creek is a concrete continuous box beam or girders - multiple carrying I-90 over Dry Creek in Kittitas County, Washington. It was built in 1967, 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 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 15,974 vehicles a day, roughly 23% of them trucks, projected to reach 20,086 by 2039. The structure is 390 ft (118.9 m) long and 35 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-90 over Dry Creek built?
It was built in 1967, making it 58 years old in 2025.
What condition is I-90 over Dry 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 Dry Creek carry?
About 15,974 vehicles per day (2023 count), of which roughly 23% are trucks.
How long is I-90 over Dry Creek?
The structure is 390 ft (118.9 m) long with a longest span of 110 ft (33.5 m) and a deck 35 ft wide.
Who owns I-90 over Dry Creek?
It is owned by the State Highway Agency.