US 93 over Corvallis Canal
GoodRavalli County, Montana · 1M N Hamilton · Structure no. P00007048+06151
- Built
- 1980
- 45 years old
- Condition
- Good
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 57 ft
- 1 main span
- Daily traffic
- 14,714
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 93 over Corvallis Canal is a prestressed concrete stringer/multi-beam or girder carrying US 93 over Corvallis Canal in Ravalli County, Montana. It was built in 1980, so it is 45 years old, younger 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 14,714 vehicles a day, roughly 1% of them trucks, projected to reach 15,965 by 2043. The structure is 57 ft (17.4 m) long and 99 ft wide. If it were closed, the detour would be 78.3 mi (126 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 US 93 over Corvallis Canal built?
It was built in 1980, making it 45 years old in 2025.
What condition is US 93 over Corvallis 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 October 2024.
How much traffic does US 93 over Corvallis Canal carry?
About 14,714 vehicles per day (2023 count), of which roughly 1% are trucks.
How long is US 93 over Corvallis Canal?
The structure is 57 ft (17.4 m) long with a longest span of 55 ft (16.8 m) and a deck 99 ft wide.
Who owns US 93 over Corvallis Canal?
It is owned by the State Highway Agency.