Timber Road over Nehalem River
FairColumbia County, Oregon · 053MISW HWY 47 JCT · Structure no. 01370A307401517
- Built
- 1973
- 52 years old
- Condition
- Fair
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 182 ft
- 3 main spans
- Daily traffic
- 338
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Timber Road over Nehalem River is a prestressed concrete stringer/multi-beam or girder carrying Timber Road over Nehalem River in Columbia County, Oregon. It was built in 1973, so it is 52 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 338 vehicles a day, roughly 20% of them trucks, projected to reach 368 by 2025. The structure is 182 ft (55.5 m) long and 34 ft wide. If it were closed, the detour would be 11.2 mi (18 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 | 7 Good | Some minor problems. |
| 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 Timber Road over Nehalem River built?
It was built in 1973, making it 52 years old in 2025.
What condition is Timber Road over Nehalem 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 May 2023.
How much traffic does Timber Road over Nehalem River carry?
About 338 vehicles per day (2020 count), of which roughly 20% are trucks.
How long is Timber Road over Nehalem River?
The structure is 182 ft (55.5 m) long with a longest span of 100 ft (30.5 m) and a deck 34 ft wide.
Who owns Timber Road over Nehalem River?
It is owned by the County Highway Agency.