US 93 over Challis Creek
GoodCuster County, Idaho · 4.8 N. Challis · Structure no. 000000000017846
- Built
- 1991
- 34 years old
- Condition
- Good
- inspected October 2024
- Type
- Slab
- Prestressed Concrete
- Length
- 36 ft
- 1 main span
- Daily traffic
- 1,400
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 93 over Challis Creek is a prestressed concrete slab carrying US 93 over Challis Creek in Custer County, Idaho. It was built in 1991, so it is 34 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 1,400 vehicles a day, roughly 15% of them trucks, projected to reach 2,100 by 2042. The structure is 36 ft (11 m) long and 36 ft wide. If it were closed, the detour would be 98.8 mi (159 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 93 over Challis Creek built?
It was built in 1991, making it 34 years old in 2025.
What condition is US 93 over Challis 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 October 2024.
How much traffic does US 93 over Challis Creek carry?
About 1,400 vehicles per day (2023 count), of which roughly 15% are trucks.
How long is US 93 over Challis Creek?
The structure is 36 ft (11 m) long with a longest span of 35 ft (10.7 m) and a deck 36 ft wide.
Who owns US 93 over Challis Creek?
It is owned by the State Highway Agency.