I-90 over SR 26
FairGrant County, Washington · 0.4 E Kittitas CO · Structure no. 0006603A0000000
- Built
- 1961
- 64 years old
- Condition
- Fair
- inspected June 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 183 ft
- 3 main spans
- Daily traffic
- 9,077
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-90 over SR 26 is a concrete continuous box beam or girders - multiple carrying I-90 over SR 26 in Grant County, Washington. It was built in 1961, so it is 64 years old, older than the Washington average of 49.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 9,077 vehicles a day, roughly 28% of them trucks, projected to reach 11,090 by 2039. The structure is 183 ft (55.8 m) long and 67 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-90 over SR 26 built?
It was built in 1961, making it 64 years old in 2025.
What condition is I-90 over SR 26 in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2024.
How much traffic does I-90 over SR 26 carry?
About 9,077 vehicles per day (2023 count), of which roughly 28% are trucks.
How long is I-90 over SR 26?
The structure is 183 ft (55.8 m) long with a longest span of 72 ft (21.9 m) and a deck 67 ft wide.
Who owns I-90 over SR 26?
It is owned by the State Highway Agency.