I 90 over Int De Borgia
GoodMineral County, Montana · De Borgia · Structure no. I00090018+09271
- Built
- 1976
- 49 years old
- Condition
- Good
- inspected January 2025
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 118 ft
- 3 main spans
- Daily traffic
- 3,724
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I 90 over Int De Borgia is a prestressed concrete stringer/multi-beam or girder carrying I 90 over Int De Borgia in Mineral County, Montana. It was built in 1976, so it is 49 years old, older 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 3,724 vehicles a day, roughly 26% of them trucks, projected to reach 3,910 by 2043. The structure is 118 ft (36 m) long and 44 ft wide.
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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 90 over Int De Borgia built?
It was built in 1976, making it 49 years old in 2025.
What condition is I 90 over Int De Borgia 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 January 2025.
How much traffic does I 90 over Int De Borgia carry?
About 3,724 vehicles per day (2023 count), of which roughly 26% are trucks.
How long is I 90 over Int De Borgia?
The structure is 118 ft (36 m) long with a longest span of 56 ft (17.2 m) and a deck 44 ft wide.
Who owns I 90 over Int De Borgia?
It is owned by the State Highway Agency.