Silver Lake
Key Takeaway
Silver Lake is classified as significant hazard in Minnesota. It was completed in 1935 and is 91 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 18 ft (taller than 57.4% in MN) |
| Dam Length | 251 ft |
| Dam Type | Gravity |
| Max Storage | 400 acre-ft |
| Normal Storage | 215 acre-ft |
| Surface Area | 58 acres |
| Drainage Area | 234 sq mi |
| Max Discharge | 22,849 cfs |
| Year Completed | 1935 (91 years old) |
| Year Modified | 1991 |
| NID ID | MN00515 |
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
City of Rochester
Local Government
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High Hazard 45 ftFrequently Asked Questions
What is the hazard classification of Silver Lake?
Silver 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 Silver Lake?
Silver Lake is owned by City of Rochester (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Silver Lake built?
Silver Lake was completed in 1935, making it 91 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 Silver Lake?
Silver 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 Silver Lake?
Silver Lake has a dam height of 18 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 Silver Lake last inspected?
Silver Lake was last inspected on April 19, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.