NW 185th Ave over HWY 47 US 26
FairWashington County, Oregon · 10.2 MI W of Portland Cc · Structure no. 09770 047C06429
- Built
- 1972
- 53 years old
- Condition
- Fair
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 265 ft
- 2 main spans
- Daily traffic
- 38,408
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
NW 185th Ave over HWY 47 US 26 is a prestressed concrete continuous stringer/multi-beam or girder carrying NW 185th Ave over HWY 47 US 26 in Washington County, Oregon. It was built in 1972, so it is 53 years old, older 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 38,408 vehicles a day, roughly 3% of them trucks, projected to reach 30,684 by 2030. The structure is 265 ft (80.8 m) long and 113 ft wide. If it were closed, the detour would be 9.9 mi (16 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was NW 185th Ave over HWY 47 US 26 built?
It was built in 1972, making it 53 years old in 2025.
What condition is NW 185th Ave over HWY 47 US 26 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 October 2024.
How much traffic does NW 185th Ave over HWY 47 US 26 carry?
About 38,408 vehicles per day (2022 count), of which roughly 3% are trucks.
How long is NW 185th Ave over HWY 47 US 26?
The structure is 265 ft (80.8 m) long with a longest span of 135 ft (41.1 m) and a deck 113 ft wide.
Who owns NW 185th Ave over HWY 47 US 26?
It is owned by the State Highway Agency.