Or 18 (hwy 39) over Yamhill River
FairPosted for loadYamhill County, Oregon · 006 MI SW HWY 01W JCT · Structure no. 08003 039 05157
- Built
- 1957
- 68 years old
- Condition
- Fair
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 629 ft
- 3 main spans
- Daily traffic
- 22,538
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Or 18 (hwy 39) over Yamhill River is a steel continuous stringer/multi-beam or girder carrying Or 18 (hwy 39) over Yamhill River in Yamhill County, Oregon. It was built in 1957, so it is 68 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. Its operating status is: posted for other load-capacity restriction.
It carries about 22,538 vehicles a day, roughly 4% of them trucks, projected to reach 22,600 by 2042. The structure is 629 ft (191.7 m) long and 37 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Or 18 (hwy 39) over Yamhill River built?
It was built in 1957, making it 68 years old in 2025.
What condition is Or 18 (hwy 39) over Yamhill River 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 November 2024.
How much traffic does Or 18 (hwy 39) over Yamhill River carry?
About 22,538 vehicles per day (2022 count), of which roughly 4% are trucks.
How long is Or 18 (hwy 39) over Yamhill River?
The structure is 629 ft (191.7 m) long with a longest span of 138 ft (42.1 m) and a deck 37 ft wide.
Who owns Or 18 (hwy 39) over Yamhill River?
It is owned by the State Highway Agency.