IRR BIA RTE 30 over Main Canal
GoodValley County, Montana · .8 KM E of Pump Station · Structure no. 00000000000C623
- Built
- 2010
- 15 years old
- Condition
- Good
- inspected October 2024
- Type
- Culvert
- Prestressed Concrete
- Length
- 30 ft
- 2 main spans
- Daily traffic
- 50
- 2024 count
- Owner
- Federal
- Bureau of Indian Affairs
About this bridge
IRR BIA RTE 30 over Main Canal is a prestressed concrete culvert carrying IRR BIA RTE 30 over Main Canal in Valley County, Montana. It was built in 2010, so it is 15 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 50 vehicles a day, roughly 5% of them trucks, projected to reach 60 by 2044. The structure is 30 ft (9.1 m) long and 43 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IRR BIA RTE 30 over Main Canal built?
It was built in 2010, making it 15 years old in 2025.
What condition is IRR BIA RTE 30 over Main 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 IRR BIA RTE 30 over Main Canal carry?
About 50 vehicles per day (2024 count), of which roughly 5% are trucks.
How long is IRR BIA RTE 30 over Main Canal?
The structure is 30 ft (9.1 m) long with a longest span of 14 ft (4.3 m) and a deck 43 ft wide.
Who owns IRR BIA RTE 30 over Main Canal?
It is owned by the Bureau of Indian Affairs.