IRR BIA RTE 13 over ST Mary Canal
GoodGlacier County, Montana · 32 KM NE of Babb · Structure no. 00000000000C142
- Built
- 2002
- 23 years old
- Condition
- Good
- inspected September 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 83 ft
- 1 main span
- Daily traffic
- 10
- 2023 count
- Owner
- Federal
- Bureau of Indian Affairs
About this bridge
IRR BIA RTE 13 over ST Mary Canal is a prestressed concrete tee beam carrying IRR BIA RTE 13 over ST Mary Canal in Glacier County, Montana. It was built in 2002, so it is 23 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 10 vehicles a day, roughly 10% of them trucks, projected to reach 12 by 2043. The structure is 83 ft (25.3 m) long and 27 ft wide. If it were closed, the detour would be 123.7 mi (199 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 IRR BIA RTE 13 over ST Mary Canal built?
It was built in 2002, making it 23 years old in 2025.
What condition is IRR BIA RTE 13 over ST Mary 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 September 2023.
How much traffic does IRR BIA RTE 13 over ST Mary Canal carry?
About 10 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is IRR BIA RTE 13 over ST Mary Canal?
The structure is 83 ft (25.3 m) long with a longest span of 80 ft (24.4 m) and a deck 27 ft wide.
Who owns IRR BIA RTE 13 over ST Mary Canal?
It is owned by the Bureau of Indian Affairs.