Fs Route 3099 over Cda River
FairPosted for loadShoshone County, Idaho · 15.5 MI F/Magee R.S. · Structure no. 010403000000009
- Built
- 1954
- 71 years old
- Condition
- Fair
- inspected October 2024
- Type
- Girder and Floorbeam System
- Steel
- Length
- 49 ft
- 1 main span
- Daily traffic
- 50
- Owner
- Federal
- U.S. Forest Service
About this bridge
Fs Route 3099 over Cda River is a steel girder and floorbeam system carrying Fs Route 3099 over Cda River in Shoshone County, Idaho. It was built in 1954, so it is 71 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 50 vehicles a day, projected to reach 75 by 2045. The structure is 49 ft (14.9 m) long and 13 ft wide. If it were closed, the detour would be 620.7 mi (999 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Fs Route 3099 over Cda River built?
It was built in 1954, making it 71 years old in 2025.
What condition is Fs Route 3099 over Cda 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 October 2024.
How much traffic does Fs Route 3099 over Cda River carry?
About 50 vehicles per day (latest count).
How long is Fs Route 3099 over Cda River?
The structure is 49 ft (14.9 m) long with a longest span of 46 ft (14 m) and a deck 13 ft wide.
Who owns Fs Route 3099 over Cda River?
It is owned by the U.S. Forest Service.