I-90 EB over Unnamed Creek
GoodKittitas County, Washington · 6.2 E JCT SR 906 · Structure no. 0018715D0000000
- Built
- 2017
- 8 years old
- Condition
- Good
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 188 ft
- 1 main span
- Daily traffic
- 18,069
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-90 EB over Unnamed Creek is a prestressed concrete stringer/multi-beam or girder carrying I-90 EB over Unnamed Creek in Kittitas County, Washington. It was built in 2017, so it is 8 years old, younger than the Washington average of 49.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 18,069 vehicles a day, roughly 21% of them trucks, projected to reach 22,265 by 2039. The structure is 188 ft (57.3 m) long and 58 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| 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 EB over Unnamed Creek built?
It was built in 2017, making it 8 years old in 2025.
What condition is I-90 EB over Unnamed Creek in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2024.
How much traffic does I-90 EB over Unnamed Creek carry?
About 18,069 vehicles per day (2023 count), of which roughly 21% are trucks.
How long is I-90 EB over Unnamed Creek?
The structure is 188 ft (57.3 m) long with a longest span of 183 ft (55.8 m) and a deck 58 ft wide.
Who owns I-90 EB over Unnamed Creek?
It is owned by the State Highway Agency.