SW 185th Ave over Beaverton Creek
FairWashington County, Oregon · 0061 MI S Baseline RD · Structure no. 671331088900004
- Built
- 1987
- 38 years old
- Condition
- Fair
- inspected September 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 103 ft
- 1 main span
- Daily traffic
- 28,780
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
SW 185th Ave over Beaverton Creek is a prestressed concrete tee beam carrying SW 185th Ave over Beaverton Creek in Washington County, Oregon. It was built in 1987, so it is 38 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.
It carries about 28,780 vehicles a day, roughly 5% of them trucks, projected to reach 29,530 by 2025. The structure is 103 ft (31.4 m) long and 98 ft wide. If it were closed, the detour would be 4.3 mi (7 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| 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 185th Ave over Beaverton Creek built?
It was built in 1987, making it 38 years old in 2025.
What condition is SW 185th Ave over Beaverton 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 185th Ave over Beaverton Creek carry?
About 28,780 vehicles per day (2020 count), of which roughly 5% are trucks.
How long is SW 185th Ave over Beaverton Creek?
The structure is 103 ft (31.4 m) long with a longest span of 101 ft (30.8 m) and a deck 98 ft wide.
Who owns SW 185th Ave over Beaverton Creek?
It is owned by the County Highway Agency.