I-90 over Taneum CR
PoorKittitas County, Washington · 11.4 E JCT SR 970 · Structure no. 0007724A0000000
- Built
- 1965
- 60 years old
- Condition
- Poor
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 108 ft
- 1 main span
- Daily traffic
- 14,959
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-90 over Taneum CR is a prestressed concrete stringer/multi-beam or girder carrying I-90 over Taneum CR in Kittitas County, Washington. It was built in 1965, so it is 60 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 14,959 vehicles a day, roughly 23% of them trucks, projected to reach 18,102 by 2039. The structure is 108 ft (32.9 m) long and 39 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 | 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 Taneum CR built?
It was built in 1965, making it 60 years old in 2025.
What condition is I-90 over Taneum CR 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 June 2024.
How much traffic does I-90 over Taneum CR carry?
About 14,959 vehicles per day (2023 count), of which roughly 23% are trucks.
How long is I-90 over Taneum CR?
The structure is 108 ft (32.9 m) long with a longest span of 101 ft (30.8 m) and a deck 39 ft wide.
Who owns I-90 over Taneum CR?
It is owned by the State Highway Agency.