Big Lake (Toole)
Key Takeaway
Big Lake (Toole) is classified as low hazard in Montana. It was completed in 1907 and is 119 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 9 ft (taller than 2.9% in MT) |
| Dam Length | 20 ft |
| Dam Type | Earth |
| Max Storage | 143 acre-ft |
| Normal Storage | 143 acre-ft |
| Surface Area | 32 acres |
| Year Completed | 1907 (119 years old) |
| NID ID | MT00549 |
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
CHERIE ANDERSON
Private
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Low Hazard 37 ftFrequently Asked Questions
What is the hazard classification of Big Lake (Toole)?
Big Lake (Toole) 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 Big Lake (Toole)?
Big Lake (Toole) is owned by CHERIE ANDERSON (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Big Lake (Toole) built?
Big Lake (Toole) was completed in 1907, making it 119 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 Big Lake (Toole)?
Big Lake (Toole) 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 Big Lake (Toole)?
Big Lake (Toole) has a dam height of 9 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.