Niemi No.1
Key Takeaway
Niemi No.1 is classified as low hazard in South Dakota. It was completed in 1960 and is 66 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 25 ft (taller than 57.4% in SD) |
| Dam Length | 245 ft |
| Dam Type | Earth |
| Max Storage | 47 acre-ft |
| Normal Storage | 39 acre-ft |
| Max Discharge | 1,575 cfs |
| Year Completed | 1960 (66 years old) |
| NID ID | SD00628 |
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
JOHN NIEMI
Private
Nearby Dams
Niemi No.2
Harding, SD
Low Hazard 22 ftNiemi No.3
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Low Hazard 25 ftNiemi No.4
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Significant Hazard 19 ftNiemi No.5
Harding, SD
Low Hazard 14 ftGardner Lake Dam
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High Hazard 32 ftArgyle
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Low Hazard 26 ftAlcorn
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Low Hazard 15 ftHaivala #2
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Low Hazard 16 ftFrequently Asked Questions
What is the hazard classification of Niemi No.1?
Niemi No.1 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 Niemi No.1?
Niemi No.1 is owned by JOHN NIEMI (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Niemi No.1 built?
Niemi No.1 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 Niemi No.1?
Niemi No.1 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 Niemi No.1?
Niemi No.1 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.