Forest Road 1172 over Red River
GoodIdaho County, Idaho · No Data Entered · Structure no. 011705000000071
- Built
- 1961
- 64 years old
- Condition
- Good
- inspected August 2020
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 36 ft
- 1 main span
- Daily traffic
- 40
- Owner
- Federal
- U.S. Forest Service
About this bridge
Forest Road 1172 over Red River is a wood or timber stringer/multi-beam or girder carrying Forest Road 1172 over Red River in Idaho County, Idaho. It was built in 1961, so it is 64 years old, older 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 40 vehicles a day, projected to reach 60 by 2045. The structure is 36 ft (11 m) long and 15 ft wide. If it were closed, the detour would be 98.2 mi (158 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Forest Road 1172 over Red River built?
It was built in 1961, making it 64 years old in 2025.
What condition is Forest Road 1172 over Red River 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 August 2020.
How much traffic does Forest Road 1172 over Red River carry?
About 40 vehicles per day (latest count).
How long is Forest Road 1172 over Red River?
The structure is 36 ft (11 m) long with a longest span of 35 ft (10.7 m) and a deck 15 ft wide.
Who owns Forest Road 1172 over Red River?
It is owned by the U.S. Forest Service.