I 90 over Int Airway Blvd
FairGallatin County, Montana · 1M E Belgrade · Structure no. I00090299+04902
- Built
- 2014
- 11 years old
- Condition
- Fair
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 149 ft
- 1 main span
- Daily traffic
- 15,554
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I 90 over Int Airway Blvd is a prestressed concrete stringer/multi-beam or girder carrying I 90 over Int Airway Blvd in Gallatin County, Montana. It was built in 2014, so it is 11 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 5 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 15,554 vehicles a day, roughly 10% of them trucks, projected to reach 17,342 by 2043. The structure is 149 ft (45.3 m) long and 40 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 90 over Int Airway Blvd built?
It was built in 2014, making it 11 years old in 2025.
What condition is I 90 over Int Airway Blvd 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 November 2024.
How much traffic does I 90 over Int Airway Blvd carry?
About 15,554 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is I 90 over Int Airway Blvd?
The structure is 149 ft (45.3 m) long with a longest span of 148 ft (45 m) and a deck 40 ft wide.
Who owns I 90 over Int Airway Blvd?
It is owned by the State Highway Agency.