Siuslaw RD over Big Canyon Creek
FairLane County, Oregon · 030 MI SW of Walton · Structure no. 39C447439000344
- Built
- 1979
- 46 years old
- Condition
- Fair
- inspected August 2023
- Type
- Slab
- Prestressed Concrete
- Length
- 64 ft
- 1 main span
- Daily traffic
- 167
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Siuslaw RD over Big Canyon Creek is a prestressed concrete slab carrying Siuslaw RD over Big Canyon Creek in Lane County, Oregon. It was built in 1979, so it is 46 years old, younger 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 167 vehicles a day, roughly 10% of them trucks, projected to reach 197 by 2025. The structure is 64 ft (19.5 m) long and 28 ft wide. If it were closed, the detour would be 39.8 mi (64 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| 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 Siuslaw RD over Big Canyon Creek built?
It was built in 1979, making it 46 years old in 2025.
What condition is Siuslaw RD over Big Canyon Creek 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 2023.
How much traffic does Siuslaw RD over Big Canyon Creek carry?
About 167 vehicles per day (2020 count), of which roughly 10% are trucks.
How long is Siuslaw RD over Big Canyon Creek?
The structure is 64 ft (19.5 m) long with a longest span of 63 ft (19.2 m) and a deck 28 ft wide.
Who owns Siuslaw RD over Big Canyon Creek?
It is owned by the County Highway Agency.