The Moonspinner
Key Takeaway
The Moonspinner is classified as low hazard in Montana. It was completed in 1960 and is 66 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 25 ft (taller than 70.3% in MT) |
| Dam Length | 125 ft |
| Dam Type | Earth |
| Max Storage | 35 acre-ft |
| Normal Storage | 21 acre-ft |
| Year Completed | 1960 (66 years old) |
| NID ID | MT03625 |
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
WANKEN FARMS
Private
Nearby Dams
Wanken
Toole, MT
Significant Hazard 30 ftEd Mcintyre
Toole, MT
Low Hazard 15 ftAlkali Flat
Toole, MT
Low Hazard 25 ftCowpath Dam
Toole, MT
High Hazard 49 ftSullivan Dam
Toole, MT
High Hazard 49 ftShelby Sewage Lagoon
Toole, MT
Low Hazard 10 ftKeil Ranch Reservoir #1
Pondera, MT
Low Hazard 30 ftWilson #2 (Toole)
Toole, MT
Low Hazard 25 ftFrequently Asked Questions
What is the hazard classification of The Moonspinner?
The Moonspinner 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 The Moonspinner?
The Moonspinner is owned by WANKEN FARMS (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was The Moonspinner built?
The Moonspinner was completed in 1960, making it 66 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 The Moonspinner?
The Moonspinner serves the following purposes: Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is The Moonspinner?
The Moonspinner has a dam height of 25 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.