I-90 over Big CR
GoodKittitas County, Washington · 20.6 E JCT SR 906 · Structure no. 0007016A0000000
- Built
- 1962
- 63 years old
- Condition
- Good
- inspected May 2024
- Type
- Slab
- Concrete
- Length
- 55 ft
- 1 main span
- Daily traffic
- 16,832
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-90 over Big CR is a concrete slab carrying I-90 over Big CR in Kittitas County, Washington. It was built in 1962, so it is 63 years old, older 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 16,832 vehicles a day, roughly 23% of them trucks, projected to reach 21,760 by 2039. The structure is 55 ft (16.8 m) long and 42 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 | 7 Good | Some minor problems. |
| 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 Big CR built?
It was built in 1962, making it 63 years old in 2025.
What condition is I-90 over Big CR 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 May 2024.
How much traffic does I-90 over Big CR carry?
About 16,832 vehicles per day (2023 count), of which roughly 23% are trucks.
How long is I-90 over Big CR?
The structure is 55 ft (16.8 m) long with a longest span of 50 ft (15.2 m) and a deck 42 ft wide.
Who owns I-90 over Big CR?
It is owned by the State Highway Agency.