Lester Sein
Key Takeaway
Lester Sein is classified as low hazard in South Dakota. It was completed in 1949 and is 77 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 24 ft (taller than 53.3% in SD) |
| Dam Length | 380 ft |
| Dam Type | Earth |
| Max Storage | 86 acre-ft |
| Normal Storage | 60 acre-ft |
| Max Discharge | 200 cfs |
| Year Completed | 1949 (77 years old) |
| NID ID | SD01771 |
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
LESTER SEIN
Private
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Low Hazard 28 ftFrequently Asked Questions
What is the hazard classification of Lester Sein?
Lester Sein 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 Lester Sein?
Lester Sein is owned by LESTER SEIN (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lester Sein built?
Lester Sein was completed in 1949, making it 77 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 Lester Sein?
Lester Sein serves the following purposes: Fire Protection, Stock, Or Small Fish Pond, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Lester Sein?
Lester Sein has a dam height of 24 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.