I-90 over Paha Coulee
GoodAdams County, Washington · 13.1 E JCT SR 21 · Structure no. 002000620000000
- Built
- 1959
- 66 years old
- Condition
- Good
- inspected July 2024
- Type
- Culvert
- Concrete
- Length
- 22 ft
- 2 main spans
- Daily traffic
- 6,150
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-90 over Paha Coulee is a concrete culvert carrying I-90 over Paha Coulee in Adams County, Washington. It was built in 1959, so it is 66 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 6,150 vehicles a day, roughly 26% of them trucks, projected to reach 7,018 by 2039. The structure is 22 ft (6.7 m) long.
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 |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-90 over Paha Coulee built?
It was built in 1959, making it 66 years old in 2025.
What condition is I-90 over Paha Coulee 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 July 2024.
How much traffic does I-90 over Paha Coulee carry?
About 6,150 vehicles per day (2023 count), of which roughly 26% are trucks.
How long is I-90 over Paha Coulee?
The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).
Who owns I-90 over Paha Coulee?
It is owned by the State Highway Agency.