I 15 Nbl over Great Western Canal
GoodBingham County, Idaho · 15.9 N. Blackfoot · Structure no. 000000000011615
- Built
- 1962
- 63 years old
- Condition
- Good
- inspected February 2024
- Type
- Frame
- Concrete
- Length
- 23 ft
- 1 main span
- Daily traffic
- 14,250
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I 15 Nbl over Great Western Canal is a concrete frame carrying I 15 Nbl over Great Western Canal in Bingham County, Idaho. It was built in 1962, so it is 63 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 14,250 vehicles a day, roughly 20% of them trucks, projected to reach 21,375 by 2042. The structure is 23 ft (7 m) long and 48 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 15 Nbl over Great Western Canal built?
It was built in 1962, making it 63 years old in 2025.
What condition is I 15 Nbl over Great Western 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 February 2024.
How much traffic does I 15 Nbl over Great Western Canal carry?
About 14,250 vehicles per day (2023 count), of which roughly 20% are trucks.
How long is I 15 Nbl over Great Western Canal?
The structure is 23 ft (7 m) long with a longest span of 23 ft (7 m) and a deck 48 ft wide.
Who owns I 15 Nbl over Great Western Canal?
It is owned by the State Highway Agency.