Hayes Lake
Key Takeaway
Hayes Lake is classified as significant hazard in Minnesota. It was completed in 1973 and is 53 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 33 ft (taller than 87.8% in MN) |
| Dam Length | 1,115 ft |
| Dam Type | Earth |
| Max Storage | 3.8K acre-ft |
| Normal Storage | 1.6K acre-ft |
| Surface Area | 187 acres |
| Drainage Area | 150 sq mi |
| Max Discharge | 24,500 cfs |
| Year Completed | 1973 (53 years old) |
| NID ID | MN00074 |
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
MNDNR-Parks
State Government
Frequently Asked Questions
What is the hazard classification of Hayes Lake?
Hayes Lake 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 Hayes Lake?
Hayes Lake is owned by MNDNR-Parks (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Hayes Lake built?
Hayes Lake was completed in 1973, making it 53 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 Hayes Lake?
Hayes Lake serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Hayes Lake?
Hayes Lake has a dam height of 33 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 Hayes Lake last inspected?
Hayes Lake was last inspected on September 21, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.