Sonstegard-Telste
Key Takeaway
Sonstegard-Telste is classified as significant hazard in Minnesota. It was completed in 1983 and is 43 years old. Its primary use is flood risk reduction. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 42 ft (taller than 94.4% in MN) |
| Dam Length | 1,400 ft |
| Dam Type | Earth |
| Max Storage | 890 acre-ft |
| Normal Storage | 107 acre-ft |
| Surface Area | 15 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 3,000 cfs |
| Year Completed | 1983 (43 years old) |
| NID ID | MN01010 |
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
WD of Yellow Medicine River
Local Government
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Low Hazard 33 ftFrequently Asked Questions
What is the hazard classification of Sonstegard-Telste?
Sonstegard-Telste 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 Sonstegard-Telste?
Sonstegard-Telste is owned by WD of Yellow Medicine River (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Sonstegard-Telste built?
Sonstegard-Telste was completed in 1983, making it 43 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 Sonstegard-Telste?
Sonstegard-Telste serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Sonstegard-Telste?
Sonstegard-Telste has a dam height of 42 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 Sonstegard-Telste last inspected?
Sonstegard-Telste was last inspected on May 10, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.