Nsp-Bottom Ash
Key Takeaway
Nsp-Bottom Ash is classified as significant hazard in Minnesota. It was completed in 1983 and is 43 years old. Its primary use is tailings. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 35 ft (taller than 89.8% in MN) |
| Dam Length | 500 ft |
| Dam Type | Earth |
| Max Storage | 200 acre-ft |
| Normal Storage | 50 acre-ft |
| Surface Area | 10 acres |
| Max Discharge | 2 cfs |
| Year Completed | 1983 (43 years old) |
| Year Modified | 2020 |
| NID ID | MN00980 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Xcel Energy
Public Utility
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Low Hazard 10 ftFrequently Asked Questions
What is the hazard classification of Nsp-Bottom Ash?
Nsp-Bottom Ash is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Nsp-Bottom Ash?
Nsp-Bottom Ash is owned by Xcel Energy (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Nsp-Bottom Ash built?
Nsp-Bottom Ash was completed in 1983, making it 43 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 Nsp-Bottom Ash?
Nsp-Bottom Ash serves the following purposes: Tailings. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Nsp-Bottom Ash?
Nsp-Bottom Ash has a dam height of 35 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 Nsp-Bottom Ash last inspected?
Nsp-Bottom Ash was last inspected on November 7, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.