Lake Marshall 33
Key Takeaway
Lake Marshall 33 is classified as low hazard in Minnesota. It was completed in 1991 and is 35 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 17 ft (taller than 55.8% in MN) |
| Dam Length | 480 ft |
| Max Storage | 56 acre-ft |
| Drainage Area | 1 sq mi |
| Year Completed | 1991 (35 years old) |
| NID ID | MN01751 |
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
County of Lyon
Local Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Lake Marshall 33?
Lake Marshall 33 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 Lake Marshall 33?
Lake Marshall 33 is owned by County of Lyon (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Marshall 33 built?
Lake Marshall 33 was completed in 1991, making it 35 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 Lake Marshall 33?
Lake Marshall 33 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 Lake Marshall 33?
Lake Marshall 33 has a dam height of 17 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 Lake Marshall 33 last inspected?
Lake Marshall 33 was last inspected on April 4, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.