I-82 over SR 821 Whipple Wasteway
PoorKittitas County, Washington · 3.2 E JCT I-90 · Structure no. 0008672C0000000
- Built
- 1970
- 55 years old
- Condition
- Poor
- inspected March 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 357 ft
- 3 main spans
- Daily traffic
- 9,791
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-82 over SR 821 Whipple Wasteway is a prestressed concrete continuous stringer/multi-beam or girder carrying I-82 over SR 821 Whipple Wasteway in Kittitas County, Washington. It was built in 1970, so it is 55 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 4 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 9,791 vehicles a day, roughly 25% of them trucks, projected to reach 12,225 by 2039. The structure is 357 ft (108.8 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| 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-82 over SR 821 Whipple Wasteway built?
It was built in 1970, making it 55 years old in 2025.
What condition is I-82 over SR 821 Whipple Wasteway 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 March 2024.
How much traffic does I-82 over SR 821 Whipple Wasteway carry?
About 9,791 vehicles per day (2023 count), of which roughly 25% are trucks.
How long is I-82 over SR 821 Whipple Wasteway?
The structure is 357 ft (108.8 m) long with a longest span of 132 ft (40.2 m) and a deck 41 ft wide.
Who owns I-82 over SR 821 Whipple Wasteway?
It is owned by the State Highway Agency.