I 90 over Int Arrow Creek
FairYellowstone County, Montana · 16.8M E Billings · Structure no. I00090469+07531
- Built
- 1972
- 53 years old
- Condition
- Fair
- inspected January 2025
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 119 ft
- 3 main spans
- Daily traffic
- 3,946
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I 90 over Int Arrow Creek is a prestressed concrete stringer/multi-beam or girder carrying I 90 over Int Arrow Creek in Yellowstone County, Montana. It was built in 1972, so it is 53 years old, older 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 3,946 vehicles a day, roughly 22% of them trucks, projected to reach 4,143 by 2043. The structure is 119 ft (36.3 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 90 over Int Arrow Creek built?
It was built in 1972, making it 53 years old in 2025.
What condition is I 90 over Int Arrow Creek 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 January 2025.
How much traffic does I 90 over Int Arrow Creek carry?
About 3,946 vehicles per day (2023 count), of which roughly 22% are trucks.
How long is I 90 over Int Arrow Creek?
The structure is 119 ft (36.3 m) long with a longest span of 55 ft (16.8 m) and a deck 44 ft wide.
Who owns I 90 over Int Arrow Creek?
It is owned by the State Highway Agency.