East Willow Creek J-1
Key Takeaway
East Willow Creek J-1 is classified as low hazard in Minnesota. It was completed in 1957 and is 69 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 28 ft (taller than 78.9% in MN) |
| Dam Length | 310 ft |
| Dam Type | Earth |
| Max Storage | 20 acre-ft |
| Drainage Area | 0 sq mi |
| Max Discharge | 90 cfs |
| Year Completed | 1957 (69 years old) |
| NID ID | MN00335 |
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
Ristau, Roger
Private
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Low Hazard 28 ftFrequently Asked Questions
What is the hazard classification of East Willow Creek J-1?
East Willow Creek J-1 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 East Willow Creek J-1?
East Willow Creek J-1 is owned by Ristau, Roger (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was East Willow Creek J-1 built?
East Willow Creek J-1 was completed in 1957, making it 69 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 East Willow Creek J-1?
East Willow Creek J-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 East Willow Creek J-1?
East Willow Creek J-1 has a dam height of 28 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 East Willow Creek J-1 last inspected?
East Willow Creek J-1 was last inspected on June 21, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.