US 91 over West Cache Canal
GoodFranklin County, Idaho · 3.2 N. Preston · Structure no. 000000000017471
- Built
- 1993
- 32 years old
- Condition
- Good
- inspected November 2021
- Type
- Culvert
- Steel
- Length
- 24 ft
- 1 main span
- Daily traffic
- 2,300
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 91 over West Cache Canal is a steel culvert carrying US 91 over West Cache Canal in Franklin County, Idaho. It was built in 1993, so it is 32 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 2,300 vehicles a day, roughly 14% of them trucks, projected to reach 3,450 by 2042. The structure is 24 ft (7.3 m) long and 160 ft wide. If it were closed, the detour would be 23 mi (37 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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 91 over West Cache Canal built?
It was built in 1993, making it 32 years old in 2025.
What condition is US 91 over West Cache Canal 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 November 2021.
How much traffic does US 91 over West Cache Canal carry?
About 2,300 vehicles per day (2023 count), of which roughly 14% are trucks.
How long is US 91 over West Cache Canal?
The structure is 24 ft (7.3 m) long with a longest span of 24 ft (7.3 m) and a deck 160 ft wide.
Who owns US 91 over West Cache Canal?
It is owned by the State Highway Agency.