Thompson Lake Dam
Key Takeaway
Thompson Lake Dam is classified as significant hazard in Michigan. It was completed in 1894 and is 132 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 20 ft (taller than 70.3% in MI) |
| Dam Length | 200 ft |
| Dam Type | Earth |
| Max Storage | 2.3K acre-ft |
| Normal Storage | 1.3K acre-ft |
| Surface Area | 260 acres |
| Drainage Area | 10 sq mi |
| Max Discharge | 222 cfs |
| Year Completed | 1894 (132 years old) |
| NID ID | MI00753 |
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
Livingston Co. Drain Commissioner
Private
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Low Hazard 9 ftFrequently Asked Questions
What is the hazard classification of Thompson Lake Dam?
Thompson Lake Dam 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 Thompson Lake Dam?
Thompson Lake Dam is owned by Livingston Co. Drain Commissioner (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Thompson Lake Dam built?
Thompson Lake Dam was completed in 1894, making it 132 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 Thompson Lake Dam?
Thompson 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 Thompson Lake Dam?
Thompson Lake Dam has a dam height of 20 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 Thompson Lake Dam last inspected?
Thompson Lake Dam was last inspected on November 1, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.