Mansfield LN over Horse Prairie Creek 011
GoodBeaverhead County, Montana · 2M NW Grant · Structure no. L01115000+07001
- Built
- 2007
- 18 years old
- Condition
- Good
- inspected November 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 61 ft
- 1 main span
- Daily traffic
- 100
- 2025 count
- Owner
- County
- County Highway Agency
About this bridge
Mansfield LN over Horse Prairie Creek 011 is a prestressed concrete tee beam carrying Mansfield LN over Horse Prairie Creek 011 in Beaverhead County, Montana. It was built in 2007, so it is 18 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 61 ft (18.5 m) long and 30 ft wide. If it were closed, the detour would be 8.1 mi (13 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mansfield LN over Horse Prairie Creek 011 built?
It was built in 2007, making it 18 years old in 2025.
What condition is Mansfield LN over Horse Prairie Creek 011 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 November 2023.
How much traffic does Mansfield LN over Horse Prairie Creek 011 carry?
About 100 vehicles per day (2025 count), of which roughly 3% are trucks.
How long is Mansfield LN over Horse Prairie Creek 011?
The structure is 61 ft (18.5 m) long with a longest span of 59 ft (18 m) and a deck 30 ft wide.
Who owns Mansfield LN over Horse Prairie Creek 011?
It is owned by the County Highway Agency.