Or 18 (hwy 39) over Unnamed Creek
GoodYamhill County, Oregon · MP 56.40 · Structure no. 22004 039 05640
- Built
- 2016
- 9 years old
- Condition
- Good
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 156 ft
- 1 main span
- Daily traffic
- 11,914
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Or 18 (hwy 39) over Unnamed Creek is a prestressed concrete stringer/multi-beam or girder carrying Or 18 (hwy 39) over Unnamed Creek in Yamhill County, Oregon. It was built in 2016, so it is 9 years old, younger than the Oregon average of 49.9 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 11,914 vehicles a day, roughly 6% of them trucks, projected to reach 17,000 by 2042. The structure is 156 ft (47.4 m) long and 46 ft wide. If it were closed, the detour would be 123 mi (198 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Or 18 (hwy 39) over Unnamed Creek built?
It was built in 2016, making it 9 years old in 2025.
What condition is Or 18 (hwy 39) over Unnamed Creek in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2024.
How much traffic does Or 18 (hwy 39) over Unnamed Creek carry?
About 11,914 vehicles per day (2022 count), of which roughly 6% are trucks.
How long is Or 18 (hwy 39) over Unnamed Creek?
The structure is 156 ft (47.4 m) long with a longest span of 156 ft (47.4 m) and a deck 46 ft wide.
Who owns Or 18 (hwy 39) over Unnamed Creek?
It is owned by the State Highway Agency.