I 90 over Pryor Creek
FairYellowstone County, Montana · 9.3M E Billings · Structure no. I00090461+09281
- Built
- 1969
- 56 years old
- Condition
- Fair
- inspected March 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 256 ft
- 3 main spans
- Daily traffic
- 4,235
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I 90 over Pryor Creek is a prestressed concrete stringer/multi-beam or girder carrying I 90 over Pryor Creek in Yellowstone County, Montana. It was built in 1969, so it is 56 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 4,235 vehicles a day, roughly 20% of them trucks, projected to reach 4,446 by 2043. The structure is 256 ft (78 m) long and 41 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 90 over Pryor Creek built?
It was built in 1969, making it 56 years old in 2025.
What condition is I 90 over Pryor 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 March 2024.
How much traffic does I 90 over Pryor Creek carry?
About 4,235 vehicles per day (2023 count), of which roughly 20% are trucks.
How long is I 90 over Pryor Creek?
The structure is 256 ft (78 m) long with a longest span of 87 ft (26.5 m) and a deck 41 ft wide.
Who owns I 90 over Pryor Creek?
It is owned by the State Highway Agency.