Bien Dam No. 2
Key Takeaway
Bien Dam No. 2 is classified as low hazard in South Dakota. It was completed in 2010 and is 16 years old. Its primary use is recreation.
Physical Details
| Dam Height | 9 ft (taller than 0.7% in SD) |
| Dam Length | 155 ft |
| Dam Type | Earth |
| Max Storage | 277 acre-ft |
| Normal Storage | 92 acre-ft |
| Surface Area | 41 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 295 cfs |
| Year Completed | 2010 (16 years old) |
| NID ID | SD02593 |
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
NEIL & LYLE BIEN
Private
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Low Hazard 36 ftFrequently Asked Questions
What is the hazard classification of Bien Dam No. 2?
Bien Dam No. 2 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 Bien Dam No. 2?
Bien Dam No. 2 is owned by NEIL & LYLE BIEN (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Bien Dam No. 2 built?
Bien Dam No. 2 was completed in 2010, making it 16 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 Bien Dam No. 2?
Bien Dam No. 2 serves the following purposes: Recreation, Fire Protection, Stock, Or Small Fish Pond, Fish And Wildlife Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Bien Dam No. 2?
Bien Dam No. 2 has a dam height of 9 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.