I90 over Mt Power RR Spur
GoodYellowstone County, Montana · Billings · Structure no. 000000202301763
- Built
- 2023
- 2 years old
- Condition
- Good
- inspected October 2023
- Type
- Culvert
- Concrete
- Length
- 54 ft
- 1 main span
- Daily traffic
- 29,488
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I90 over Mt Power RR Spur is a concrete culvert carrying I90 over Mt Power RR Spur in Yellowstone County, Montana. It was built in 2023, so it is 2 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 29,488 vehicles a day, roughly 13% of them trucks, projected to reach 31,405 by 2043. The structure is 54 ft (16.5 m) long and 150 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 |
|---|---|---|
| Culvert | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I90 over Mt Power RR Spur built?
It was built in 2023, making it 2 years old in 2025.
What condition is I90 over Mt Power RR Spur 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 2023.
How much traffic does I90 over Mt Power RR Spur carry?
About 29,488 vehicles per day (2023 count), of which roughly 13% are trucks.
How long is I90 over Mt Power RR Spur?
The structure is 54 ft (16.5 m) long with a longest span of 52 ft (15.8 m) and a deck 150 ft wide.
Who owns I90 over Mt Power RR Spur?
It is owned by the State Highway Agency.