I-90 over West Canal
PoorGrant County, Washington · 12.3 E JCT SR 26 · Structure no. 0007386C0000000
- Built
- 1964
- 61 years old
- Condition
- Poor
- inspected February 2023
- Type
- Slab
- Concrete Continuous
- Length
- 109 ft
- 5 main spans
- Daily traffic
- 5,896
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-90 over West Canal is a concrete continuous slab carrying I-90 over West Canal in Grant County, Washington. It was built in 1964, so it is 61 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 5,896 vehicles a day, roughly 28% of them trucks, projected to reach 7,073 by 2039. The structure is 109 ft (33.2 m) long and 41 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-90 over West Canal built?
It was built in 1964, making it 61 years old in 2025.
What condition is I-90 over West Canal 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 February 2023.
How much traffic does I-90 over West Canal carry?
About 5,896 vehicles per day (2023 count), of which roughly 28% are trucks.
How long is I-90 over West Canal?
The structure is 109 ft (33.2 m) long with a longest span of 38 ft (11.6 m) and a deck 41 ft wide.
Who owns I-90 over West Canal?
It is owned by the State Highway Agency.