I 90 over Warm Springs-Wb Int Ramp
FairDeer Lodge County, Montana · Warm Springs · Structure no. I00090201+05494
- Built
- 1978
- 47 years old
- Condition
- Fair
- inspected February 2024
- Type
- Slab
- Concrete
- Length
- 27 ft
- 1 main span
- Daily traffic
- 100
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I 90 over Warm Springs-Wb Int Ramp is a concrete slab carrying I 90 over Warm Springs-Wb Int Ramp in Deer Lodge County, Montana. It was built in 1978, so it is 47 years old, younger than the Montana average of 47 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 100 vehicles a day, roughly 3% of them trucks, projected to reach 106 by 2043. The structure is 27 ft (8.2 m) long and 32 ft wide.
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 90 over Warm Springs-Wb Int Ramp built?
It was built in 1978, making it 47 years old in 2025.
What condition is I 90 over Warm Springs-Wb Int Ramp in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2024.
How much traffic does I 90 over Warm Springs-Wb Int Ramp carry?
About 100 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is I 90 over Warm Springs-Wb Int Ramp?
The structure is 27 ft (8.2 m) long with a longest span of 25 ft (7.6 m) and a deck 32 ft wide.
Who owns I 90 over Warm Springs-Wb Int Ramp?
It is owned by the State Highway Agency.