Siberts Old River over Fishhook Creek
FairPosted for loadShoshone County, Idaho · 2.1 W. Avery · Structure no. 000000000020370
- Built
- 1935
- 90 years old, rebuilt 1988
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 46 ft
- 1 main span
- Daily traffic
- 330
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Siberts Old River over Fishhook Creek is a steel stringer/multi-beam or girder carrying Siberts Old River over Fishhook Creek in Shoshone County, Idaho. It was built in 1935 and reconstructed in 1988, so it is 90 years old, older than the Idaho average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 load restriction.
It carries about 330 vehicles a day, roughly 32% of them trucks, projected to reach 495 by 2042. The structure is 46 ft (14 m) long and 19 ft wide. If it were closed, the detour would be 98.8 mi (159 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 Siberts Old River over Fishhook Creek built?
It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1988.
What condition is Siberts Old River over Fishhook 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 2024.
How much traffic does Siberts Old River over Fishhook Creek carry?
About 330 vehicles per day (2023 count), of which roughly 32% are trucks.
How long is Siberts Old River over Fishhook Creek?
The structure is 46 ft (14 m) long with a longest span of 44 ft (13.4 m) and a deck 19 ft wide.
Who owns Siberts Old River over Fishhook Creek?
It is owned by the County Highway Agency.