Jefferson-Scio DR over N Fork Santiam River
FairLinn County, Oregon · 068 Miles West of Scio · Structure no. 04668 000400668
- Built
- 1973
- 52 years old
- Condition
- Fair
- inspected July 2023
- Type
- Box Beam or Girders - Single or Spread
- Prestressed Concrete Continuous
- Length
- 486 ft
- 3 main spans
- Daily traffic
- 2,369
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Jefferson-Scio DR over N Fork Santiam River is a prestressed concrete continuous box beam or girders - single or spread carrying Jefferson-Scio DR over N Fork Santiam River in Linn 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 2,369 vehicles a day, roughly 15% of them trucks, projected to reach 3,090 by 2041. The structure is 486 ft (148.1 m) long and 43 ft wide. If it were closed, the detour would be 24.2 mi (39 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. |
| 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 Jefferson-Scio DR over N Fork Santiam River built?
It was built in 1973, making it 52 years old in 2025.
What condition is Jefferson-Scio DR over N Fork Santiam 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 July 2023.
How much traffic does Jefferson-Scio DR over N Fork Santiam River carry?
About 2,369 vehicles per day (2021 count), of which roughly 15% are trucks.
How long is Jefferson-Scio DR over N Fork Santiam River?
The structure is 486 ft (148.1 m) long with a longest span of 180 ft (54.9 m) and a deck 43 ft wide.
Who owns Jefferson-Scio DR over N Fork Santiam River?
It is owned by the County Highway Agency.