I 90 over Valley Creek
FairStillwater County, Montana · 1.9M W Park City · Structure no. I00090424+07551
- Built
- 1970
- 55 years old
- Condition
- Fair
- inspected February 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 140 ft
- 3 main spans
- Daily traffic
- 6,161
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I 90 over Valley Creek is a prestressed concrete stringer/multi-beam or girder carrying I 90 over Valley Creek in Stillwater County, Montana. It was built in 1970, so it is 55 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 6,161 vehicles a day, roughly 20% of them trucks, projected to reach 6,715 by 2043. The structure is 140 ft (42.7 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| 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 Valley Creek built?
It was built in 1970, making it 55 years old in 2025.
What condition is I 90 over Valley 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 February 2024.
How much traffic does I 90 over Valley Creek carry?
About 6,161 vehicles per day (2023 count), of which roughly 20% are trucks.
How long is I 90 over Valley Creek?
The structure is 140 ft (42.7 m) long with a longest span of 77 ft (23.5 m) and a deck 44 ft wide.
Who owns I 90 over Valley Creek?
It is owned by the State Highway Agency.