Grand Ronde Road over South Yamhill River
FairPolk County, Oregon · 003 N State HWY 18 · Structure no. 10003A068100095
- Built
- 1970
- 55 years old
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 164 ft
- 3 main spans
- Daily traffic
- 2,809
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Grand Ronde Road over South Yamhill River is a prestressed concrete stringer/multi-beam or girder carrying Grand Ronde Road over South Yamhill River in Polk County, Oregon. It was built in 1970, so it is 55 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 2,809 vehicles a day, roughly 13% of them trucks, projected to reach 4,350 by 2040. The structure is 164 ft (50 m) long and 34 ft wide. If it were closed, the detour would be 0.6 mi (1 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 | 7 Good | Some minor problems. |
| 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 Grand Ronde Road over South Yamhill River built?
It was built in 1970, making it 55 years old in 2025.
What condition is Grand Ronde Road over South 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 August 2024.
How much traffic does Grand Ronde Road over South Yamhill River carry?
About 2,809 vehicles per day (2020 count), of which roughly 13% are trucks.
How long is Grand Ronde Road over South Yamhill River?
The structure is 164 ft (50 m) long with a longest span of 70 ft (21.3 m) and a deck 34 ft wide.
Who owns Grand Ronde Road over South Yamhill River?
It is owned by the County Highway Agency.