Custer Motorway over Yankee Fork
FairCuster County, Idaho · No Data Entered · Structure no. 040603000001113
- Built
- 1969
- 56 years old, rebuilt 1997
- Condition
- Fair
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 27 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 stringer/multi-beam or girder carrying Custer Motorway over Yankee Fork in Custer County, Idaho. It was built in 1969 and reconstructed in 1997, so it is 56 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.
It carries about 100 vehicles a day, roughly 10% of them trucks, projected to reach 150 by 2014. The structure is 27 ft (8.2 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 | 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 Custer Motorway over Yankee Fork built?
It was built in 1969, making it 56 years old in 2025. It was reconstructed in 1997.
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 27 ft (8.2 m) long with a longest span of 27 ft (8.1 m) and a deck 15 ft wide.
Who owns Custer Motorway over Yankee Fork?
It is owned by the U.S. Forest Service.