Lone Tree
Key Takeaway
Lone Tree is classified as low hazard in Montana. It was completed in 1946 and is 80 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 17 ft (taller than 34.9% in MT) |
| Dam Length | 300 ft |
| Dam Type | Earth |
| Max Storage | 96 acre-ft |
| Normal Storage | 90 acre-ft |
| Drainage Area | 3 sq mi |
| Max Discharge | 500 cfs |
| Year Completed | 1946 (80 years old) |
| NID ID | MT01327 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
LLOYD KNUDSEN
Private
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Low Hazard 20 ftFrequently Asked Questions
What is the hazard classification of Lone Tree?
Lone Tree is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Lone Tree?
Lone Tree is owned by LLOYD KNUDSEN (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lone Tree built?
Lone Tree was completed in 1946, making it 80 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Lone Tree?
Lone Tree serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Lone Tree?
Lone Tree has a dam height of 17 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.