Buttermilk Butte over East Fork Buttermilk CR
FairOkanogan County, Washington · No Data Entered · Structure no. 060804000001025
- Built
- 1992
- 33 years old
- Condition
- Fair
- inspected July 2023
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 42 ft
- 1 main span
- Daily traffic
- 15
- 1992 count
- Owner
- Federal
- U.S. Forest Service
About this bridge
Buttermilk Butte over East Fork Buttermilk CR is a wood or timber stringer/multi-beam or girder carrying Buttermilk Butte over East Fork Buttermilk CR in Okanogan County, Washington. It was built in 1992, so it is 33 years old, younger 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 15 vehicles a day, projected to reach 22 by 2045. The structure is 42 ft (12.8 m) long and 16 ft wide. If it were closed, the detour would be 98.2 mi (158 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Buttermilk Butte over East Fork Buttermilk CR built?
It was built in 1992, making it 33 years old in 2025.
What condition is Buttermilk Butte over East Fork Buttermilk CR 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 Buttermilk Butte over East Fork Buttermilk CR carry?
About 15 vehicles per day (1992 count).
How long is Buttermilk Butte over East Fork Buttermilk CR?
The structure is 42 ft (12.8 m) long with a longest span of 40 ft (12.2 m) and a deck 16 ft wide.
Who owns Buttermilk Butte over East Fork Buttermilk CR?
It is owned by the U.S. Forest Service.