Lower Crystal Lake Dam
Key Takeaway
Lower Crystal Lake Dam is classified as low hazard in Michigan. It was completed in 1970 and is 56 years old. Its primary use is recreation.
Physical Details
| Dam Height | 30 ft (taller than 89.2% in MI) |
| Dam Length | 1,235 ft |
| Dam Type | Earth |
| Max Storage | 660 acre-ft |
| Normal Storage | 475 acre-ft |
| Surface Area | 40 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 165 cfs |
| Year Completed | 1970 (56 years old) |
| NID ID | MI00444 |
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
Crystal Lake Improvement Assoc.
Private
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Low Hazard 14 ftFrequently Asked Questions
What is the hazard classification of Lower Crystal Lake Dam?
Lower Crystal Lake Dam 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 Lower Crystal Lake Dam?
Lower Crystal Lake Dam is owned by Crystal Lake Improvement Assoc. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lower Crystal Lake Dam built?
Lower Crystal Lake Dam was completed in 1970, making it 56 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 Lower Crystal Lake Dam?
Lower Crystal Lake Dam 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 Lower Crystal Lake Dam?
Lower Crystal Lake Dam has a dam height of 30 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 Lower Crystal Lake Dam last inspected?
Lower Crystal Lake Dam was last inspected on November 26, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.