I 90 over Bridger Creek
FairSweet Grass County, Montana · 6.8M E Greycliff · Structure no. I00090384+07421
- Built
- 1972
- 53 years old
- Condition
- Fair
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 169 ft
- 3 main spans
- Daily traffic
- 5,423
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I 90 over Bridger Creek is a prestressed concrete stringer/multi-beam or girder carrying I 90 over Bridger Creek in Sweet Grass 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 5,423 vehicles a day, roughly 20% of them trucks, projected to reach 5,829 by 2043. The structure is 169 ft (51.5 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 90 over Bridger Creek built?
It was built in 1972, making it 53 years old in 2025.
What condition is I 90 over Bridger 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 October 2023.
How much traffic does I 90 over Bridger Creek carry?
About 5,423 vehicles per day (2023 count), of which roughly 20% are trucks.
How long is I 90 over Bridger Creek?
The structure is 169 ft (51.5 m) long with a longest span of 67 ft (20.4 m) and a deck 44 ft wide.
Who owns I 90 over Bridger Creek?
It is owned by the State Highway Agency.