Yanktonai Dam
Key Takeaway
Yanktonai Dam is classified as significant hazard in North Dakota. It was completed in 1935 and is 91 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 21 ft (taller than 68.5% in ND) |
| Dam Length | 400 ft |
| Dam Type | Earth |
| Max Storage | 600 acre-ft |
| Normal Storage | 600 acre-ft |
| Surface Area | 200 acres |
| Drainage Area | 12 sq mi |
| Year Completed | 1935 (91 years old) |
| NID ID | ND00094 |
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
McLean County WRB
Local Government
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Low Hazard 24 ftFrequently Asked Questions
What is the hazard classification of Yanktonai Dam?
Yanktonai Dam 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 Yanktonai Dam?
Yanktonai Dam is owned by McLean County WRB (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Yanktonai Dam built?
Yanktonai Dam was completed in 1935, making it 91 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 Yanktonai Dam?
Yanktonai Dam serves the following purposes: Recreation, 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 Yanktonai Dam?
Yanktonai Dam has a dam height of 21 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 Yanktonai Dam last inspected?
Yanktonai Dam was last inspected on October 27, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.