Custer Motorway over Yankee Fork
FairCuster County, Idaho · 25 Miles NE of Stanley Id · Structure no. 040603000001114
- Built
- 1973
- 52 years old, rebuilt 1999
- Condition
- Fair
- inspected October 2024
- Type
- Girder and Floorbeam System
- Wood or Timber
- Length
- 25 ft
- 1 main span
- Daily traffic
- 100
- 1994 count
- Owner
- Federal
- U.S. Forest Service
About this bridge
Custer Motorway over Yankee Fork is a wood or timber girder and floorbeam system carrying Custer Motorway over Yankee Fork in Custer County, Idaho. It was built in 1973 and reconstructed in 1999, so it is 52 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 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 150 by 2014. The structure is 25 ft (7.5 m) long and 15 ft wide. If it were closed, the detour would be 94.4 mi (152 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 | 7 Good | Some minor problems. |
| 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 Custer Motorway over Yankee Fork built?
It was built in 1973, making it 52 years old in 2025. It was reconstructed in 1999.
What condition is Custer Motorway over Yankee Fork 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 Custer Motorway over Yankee Fork carry?
About 100 vehicles per day (1994 count), of which roughly 10% are trucks.
How long is Custer Motorway over Yankee Fork?
The structure is 25 ft (7.5 m) long with a longest span of 23 ft (7 m) and a deck 15 ft wide.
Who owns Custer Motorway over Yankee Fork?
It is owned by the U.S. Forest Service.