Bernard Armstrong
Key Takeaway
Bernard Armstrong is classified as significant hazard in South Dakota. It was completed in 1969 and is 57 years old. Its primary use is irrigation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 26 ft (taller than 65.2% in SD) |
| Dam Length | 201 ft |
| Dam Type | Earth |
| Max Storage | 832 acre-ft |
| Normal Storage | 440 acre-ft |
| Max Discharge | 2,106 cfs |
| Year Completed | 1969 (57 years old) |
| NID ID | SD01786 |
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
BRADY DALY
Private
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Low Hazard 22 ftFrequently Asked Questions
What is the hazard classification of Bernard Armstrong?
Bernard Armstrong 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 Bernard Armstrong?
Bernard Armstrong is owned by BRADY DALY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Bernard Armstrong built?
Bernard Armstrong was completed in 1969, making it 57 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 Bernard Armstrong?
Bernard Armstrong serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Bernard Armstrong?
Bernard Armstrong has a dam height of 26 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.