12 Mile RD over Crooked Creek 089
GoodYellowstone County, Montana · 4M NW Shepherd · Structure no. L56753004+09001
- Built
- 2010
- 15 years old
- Condition
- Good
- inspected July 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 64 ft
- 1 main span
- Daily traffic
- 100
- 2025 count
- Owner
- County
- County Highway Agency
About this bridge
12 Mile RD over Crooked Creek 089 is a prestressed concrete tee beam carrying 12 Mile RD over Crooked Creek 089 in Yellowstone County, Montana. It was built in 2010, so it is 15 years old, younger than the Montana average of 47 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 64 ft (19.5 m) long and 30 ft wide. If it were closed, the detour would be 6.2 mi (10 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| 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 12 Mile RD over Crooked Creek 089 built?
It was built in 2010, making it 15 years old in 2025.
What condition is 12 Mile RD over Crooked Creek 089 in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.
How much traffic does 12 Mile RD over Crooked Creek 089 carry?
About 100 vehicles per day (2025 count), of which roughly 3% are trucks.
How long is 12 Mile RD over Crooked Creek 089?
The structure is 64 ft (19.5 m) long with a longest span of 50 ft (15.2 m) and a deck 30 ft wide.
Who owns 12 Mile RD over Crooked Creek 089?
It is owned by the County Highway Agency.