I-90 over Dry Relief
FairKittitas County, Washington · 10.1 E JCT I-82 · Structure no. 0008377B0000000
- Built
- 1968
- 57 years old
- Condition
- Fair
- inspected July 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 227 ft
- 2 main spans
- Daily traffic
- 8,811
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-90 over Dry Relief is a prestressed concrete continuous stringer/multi-beam or girder carrying I-90 over Dry Relief in Kittitas County, Washington. It was built in 1968, so it is 57 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 5 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 8,811 vehicles a day, roughly 28% of them trucks, projected to reach 10,702 by 2039. The structure is 227 ft (69.2 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 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-90 over Dry Relief built?
It was built in 1968, making it 57 years old in 2025.
What condition is I-90 over Dry Relief 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 July 2023.
How much traffic does I-90 over Dry Relief carry?
About 8,811 vehicles per day (2023 count), of which roughly 28% are trucks.
How long is I-90 over Dry Relief?
The structure is 227 ft (69.2 m) long with a longest span of 112 ft (34.1 m) and a deck 41 ft wide.
Who owns I-90 over Dry Relief?
It is owned by the State Highway Agency.