Maas Detention
Key Takeaway
Maas Detention is classified as low hazard in Minnesota. It was completed in 1993 and is 33 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 30 ft (taller than 82.5% in MN) |
| Dam Length | 260 ft |
| Dam Type | Earth |
| Max Storage | 21 acre-ft |
| Normal Storage | 5 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 150 cfs |
| Year Completed | 1993 (33 years old) |
| NID ID | MN00985 |
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
Maas, Ronald
Private
Nearby Dams
Cannon River (Woolen Mills)
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Significant Hazard 6 ftWavrin Wetland
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Low Hazard 6 ftKing'S Mill
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High Hazard 17 ftSwan Lake
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Low Hazard 7 ftFrench Lake
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Low Hazard 8 ftMorristown Pond
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Low Hazard 10 ftMoonan Marsh
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Low Hazard 9 ftWatkins Lake
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Unknown 4 ftFrequently Asked Questions
What is the hazard classification of Maas Detention?
Maas Detention 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 Maas Detention?
Maas Detention is owned by Maas, Ronald (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Maas Detention built?
Maas Detention was completed in 1993, making it 33 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 Maas Detention?
Maas Detention serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Maas Detention?
Maas Detention has a dam height of 30 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.
When was Maas Detention last inspected?
Maas Detention was last inspected on July 13, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.