Pleasant Valley No. 1
Key Takeaway
Pleasant Valley No. 1 is classified as significant hazard in Minnesota. It was completed in 1968 and is 58 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 | 34 ft (taller than 89% in MN) |
| Dam Length | 470 ft |
| Dam Type | Earth |
| Max Storage | 81 acre-ft |
| Normal Storage | 24 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 1,123 cfs |
| Year Completed | 1968 (58 years old) |
| NID ID | MN00431 |
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
Hundorf
Private
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Significant Hazard 27 ftFrequently Asked Questions
What is the hazard classification of Pleasant Valley No. 1?
Pleasant Valley No. 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 Pleasant Valley No. 1?
Pleasant Valley No. 1 is owned by Hundorf (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Pleasant Valley No. 1 built?
Pleasant Valley No. 1 was completed in 1968, making it 58 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 Pleasant Valley No. 1?
Pleasant Valley No. 1 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 Pleasant Valley No. 1?
Pleasant Valley No. 1 has a dam height of 34 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 Pleasant Valley No. 1 last inspected?
Pleasant Valley No. 1 was last inspected on April 26, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.