US 191 over Otter Creek
FairSweet Grass County, Montana · 4M S Melville · Structure no. P00045016+03331
- Built
- 2004
- 21 years old
- Condition
- Fair
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 67 ft
- 1 main span
- Daily traffic
- 661
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 191 over Otter Creek is a prestressed concrete stringer/multi-beam or girder carrying US 191 over Otter Creek in Sweet Grass County, Montana. It was built in 2004, so it is 21 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 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 661 vehicles a day, roughly 12% of them trucks, projected to reach 694 by 2043. The structure is 67 ft (20.3 m) long and 38 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 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 US 191 over Otter Creek built?
It was built in 2004, making it 21 years old in 2025.
What condition is US 191 over Otter 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 June 2024.
How much traffic does US 191 over Otter Creek carry?
About 661 vehicles per day (2023 count), of which roughly 12% are trucks.
How long is US 191 over Otter Creek?
The structure is 67 ft (20.3 m) long with a longest span of 66 ft (20 m) and a deck 38 ft wide.
Who owns US 191 over Otter Creek?
It is owned by the State Highway Agency.