NFSR 421 over Fawn Creek
GoodValley County, Idaho · 6 MI S. of Lake Cascade · Structure no. 040206000015577
- Built
- 2011
- 14 years old
- Condition
- Good
- inspected September 2023
- Type
- Slab
- Wood or Timber
- Length
- 28 ft
- 1 main span
- Daily traffic
- 10
- 2018 count
- Owner
- Federal
- U.S. Forest Service
About this bridge
NFSR 421 over Fawn Creek is a wood or timber slab carrying NFSR 421 over Fawn Creek in Valley County, Idaho. It was built in 2011, so it is 14 years old, younger than the Idaho average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 10 vehicles a day, projected to reach 15 by 2045. The structure is 28 ft (8.5 m) long and 16 ft wide. If it were closed, the detour would be 5.6 mi (9 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was NFSR 421 over Fawn Creek built?
It was built in 2011, making it 14 years old in 2025.
What condition is NFSR 421 over Fawn Creek in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.
How much traffic does NFSR 421 over Fawn Creek carry?
About 10 vehicles per day (2018 count).
How long is NFSR 421 over Fawn Creek?
The structure is 28 ft (8.5 m) long with a longest span of 27 ft (8.2 m) and a deck 16 ft wide.
Who owns NFSR 421 over Fawn Creek?
It is owned by the U.S. Forest Service.