I 90 over Int St. Regis
FairMineral County, Montana · St. Regis · Structure no. I00090033+04071
- Built
- 1983
- 42 years old
- Condition
- Fair
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 124 ft
- 3 main spans
- Daily traffic
- 3,559
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I 90 over Int St. Regis is a prestressed concrete stringer/multi-beam or girder carrying I 90 over Int St. Regis in Mineral County, Montana. It was built in 1983, so it is 42 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 3,559 vehicles a day, roughly 28% of them trucks, projected to reach 3,736 by 2043. The structure is 124 ft (37.9 m) long and 44 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 90 over Int St. Regis built?
It was built in 1983, making it 42 years old in 2025.
What condition is I 90 over Int St. Regis 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 October 2024.
How much traffic does I 90 over Int St. Regis carry?
About 3,559 vehicles per day (2023 count), of which roughly 28% are trucks.
How long is I 90 over Int St. Regis?
The structure is 124 ft (37.9 m) long with a longest span of 51 ft (15.6 m) and a deck 44 ft wide.
Who owns I 90 over Int St. Regis?
It is owned by the State Highway Agency.