Lenz Detention
Key Takeaway
Lenz Detention is classified as low hazard in Minnesota. It was completed in 1967 and is 59 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 27 ft (taller than 77.1% in MN) |
| Dam Length | 273 ft |
| Dam Type | Earth |
| Max Storage | 19 acre-ft |
| Normal Storage | 1 acre-ft |
| Drainage Area | 1 sq mi |
| Max Discharge | 612 cfs |
| Year Completed | 1967 (59 years old) |
| NID ID | MN00873 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Lentz, Ralph
Private
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Low Hazard 30 ftFrequently Asked Questions
What is the hazard classification of Lenz Detention?
Lenz Detention is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Lenz Detention?
Lenz Detention is owned by Lentz, Ralph (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lenz Detention built?
Lenz Detention was completed in 1967, making it 59 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 Lenz Detention?
Lenz Detention 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 Lenz Detention?
Lenz Detention has a dam height of 27 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 Lenz Detention last inspected?
Lenz Detention was last inspected on July 11, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.