Bak #1
Key Takeaway
Bak #1 is classified as significant hazard in South Dakota. It was completed in 1970 and is 56 years old. Its primary use is other. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 59 ft (taller than 99% in SD) |
| Dam Length | 500 ft |
| Dam Type | Earth |
| Max Storage | 236 acre-ft |
| Normal Storage | 192 acre-ft |
| Max Discharge | 40 cfs |
| Year Completed | 1970 (56 years old) |
| NID ID | SD01472 |
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
DEPT. OF TRANSPORTATION
State Government
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Low Hazard 28 ftFrequently Asked Questions
What is the hazard classification of Bak #1?
Bak #1 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 Bak #1?
Bak #1 is owned by DEPT. OF TRANSPORTATION (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Bak #1 built?
Bak #1 was completed in 1970, making it 56 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 Bak #1?
Bak #1 serves the following purposes: Other, Recreation, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Bak #1?
Bak #1 has a dam height of 59 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.
When was Bak #1 last inspected?
Bak #1 was last inspected on November 10, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.