IRR - S 13 over Manternach Coulee
GoodDaniels County, Montana · 2M S Scobey · Structure no. P00032048+01431
- Built
- 1988
- 37 years old
- Condition
- Good
- inspected August 2024
- Type
- Culvert
- Steel
- Length
- 22 ft
- 2 main spans
- Daily traffic
- 795
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
IRR - S 13 over Manternach Coulee is a steel culvert carrying IRR - S 13 over Manternach Coulee in Daniels County, Montana. It was built in 1988, so it is 37 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 795 vehicles a day, roughly 3% of them trucks, projected to reach 835 by 2043. The structure is 22 ft (6.7 m) long. 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 |
|---|---|---|
| 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 - S 13 over Manternach Coulee built?
It was built in 1988, making it 37 years old in 2025.
What condition is IRR - S 13 over Manternach Coulee 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 August 2024.
How much traffic does IRR - S 13 over Manternach Coulee carry?
About 795 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is IRR - S 13 over Manternach Coulee?
The structure is 22 ft (6.7 m) long with a longest span of 15 ft (4.7 m).
Who owns IRR - S 13 over Manternach Coulee?
It is owned by the State Highway Agency.