SW 229th Ave over Butternut Creek
FairPosted for loadWashington County, Oregon · 008 MI N Rosedale Road · Structure no. 671237102900040
- Built
- 1978
- 47 years old
- Condition
- Fair
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 59 ft
- 3 main spans
- Daily traffic
- 3,850
- 2018 count
- Owner
- County
- County Highway Agency
About this bridge
SW 229th Ave over Butternut Creek is a wood or timber stringer/multi-beam or girder carrying SW 229th Ave over Butternut Creek in Washington County, Oregon. It was built in 1978, so it is 47 years old, younger than the Oregon average of 49.9 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. Its operating status is: posted for load restriction.
It carries about 3,850 vehicles a day, roughly 10% of them trucks, projected to reach 6,400 by 2037. The structure is 59 ft (18 m) long and 24 ft wide. If it were closed, the detour would be 5.6 mi (9 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 | 8 Very Good | No problems noted. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SW 229th Ave over Butternut Creek built?
It was built in 1978, making it 47 years old in 2025.
What condition is SW 229th Ave over Butternut Creek 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 September 2024.
How much traffic does SW 229th Ave over Butternut Creek carry?
About 3,850 vehicles per day (2018 count), of which roughly 10% are trucks.
How long is SW 229th Ave over Butternut Creek?
The structure is 59 ft (18 m) long with a longest span of 18 ft (5.5 m) and a deck 24 ft wide.
Who owns SW 229th Ave over Butternut Creek?
It is owned by the County Highway Agency.