Sd Noname 171
Key Takeaway
Sd Noname 171 is classified as significant hazard in South Dakota. It was completed in 1960 and is 66 years old. Its primary use is fire protection. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 31 ft (taller than 88.8% in SD) |
| Dam Length | 980 ft |
| Dam Type | Earth |
| Max Storage | 225 acre-ft |
| Normal Storage | 75 acre-ft |
| Max Discharge | 1,500 cfs |
| Year Completed | 1960 (66 years old) |
| NID ID | SD01998 |
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
RINGER ESTATE
Private
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Low Hazard 14 ftFrequently Asked Questions
What is the hazard classification of Sd Noname 171?
Sd Noname 171 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 Sd Noname 171?
Sd Noname 171 is owned by RINGER ESTATE (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Sd Noname 171 built?
Sd Noname 171 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 Sd Noname 171?
Sd Noname 171 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 Sd Noname 171?
Sd Noname 171 has a dam height of 31 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.