I 15 over Pondera Canal
GoodPondera County, Montana · 9M N Conrad · Structure no. I00015347+08142
- Built
- 1972
- 53 years old
- Condition
- Good
- inspected February 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 72 ft
- 1 main span
- Daily traffic
- 1,510
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I 15 over Pondera Canal is a prestressed concrete stringer/multi-beam or girder carrying I 15 over Pondera Canal in Pondera County, Montana. It was built in 1972, so it is 53 years old, older than the Montana average of 47 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 1,510 vehicles a day, roughly 28% of them trucks, projected to reach 1,585 by 2043. The structure is 72 ft (21.9 m) long and 44 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 15 over Pondera Canal built?
It was built in 1972, making it 53 years old in 2025.
What condition is I 15 over Pondera 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 over Pondera Canal carry?
About 1,510 vehicles per day (2023 count), of which roughly 28% are trucks.
How long is I 15 over Pondera Canal?
The structure is 72 ft (21.9 m) long with a longest span of 70 ft (21.3 m) and a deck 44 ft wide.
Who owns I 15 over Pondera Canal?
It is owned by the State Highway Agency.