Swanson, Holm & Hemmah Group
Key Takeaway
Swanson, Holm & Hemmah Group is classified as low hazard in Minnesota. It was completed in 1959 and is 67 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 29 ft (taller than 80.4% in MN) |
| Dam Length | 421 ft |
| Dam Type | Earth |
| Max Storage | 23 acre-ft |
| Normal Storage | 3 acre-ft |
| Drainage Area | 0 sq mi |
| Max Discharge | 54 cfs |
| Year Completed | 1959 (67 years old) |
| NID ID | MN00471 |
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
Ernst, Steve
Private
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Low Hazard 31 ftFrequently Asked Questions
What is the hazard classification of Swanson, Holm & Hemmah Group?
Swanson, Holm & Hemmah Group 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 Swanson, Holm & Hemmah Group?
Swanson, Holm & Hemmah Group is owned by Ernst, Steve (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Swanson, Holm & Hemmah Group built?
Swanson, Holm & Hemmah Group was completed in 1959, making it 67 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 Swanson, Holm & Hemmah Group?
Swanson, Holm & Hemmah Group 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 Swanson, Holm & Hemmah Group?
Swanson, Holm & Hemmah Group has a dam height of 29 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 Swanson, Holm & Hemmah Group last inspected?
Swanson, Holm & Hemmah Group was last inspected on April 25, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.