Hiland Lake Dam
Key Takeaway
Hiland Lake Dam is classified as high hazard in Michigan. It was completed in 1882 and is 144 years old. Its primary use is recreation. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 19 ft (taller than 67.3% in MI) |
| Dam Length | 120 ft |
| Dam Type | Gravity |
| Max Storage | 900 acre-ft |
| Normal Storage | 740 acre-ft |
| Surface Area | 527 acres |
| Drainage Area | 80 sq mi |
| Max Discharge | 750 cfs |
| Year Completed | 1882 (144 years old) |
| NID ID | MI00602 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Washtenaw County DPW
Private
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Low Hazard 9 ftFrequently Asked Questions
What is the hazard classification of Hiland Lake Dam?
Hiland Lake Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Hiland Lake Dam?
Hiland Lake Dam is owned by Washtenaw County DPW (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Hiland Lake Dam built?
Hiland Lake Dam was completed in 1882, making it 144 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 Hiland Lake Dam?
Hiland 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 Hiland Lake Dam?
Hiland Lake Dam has a dam height of 19 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 Hiland Lake Dam last inspected?
Hiland Lake Dam was last inspected on November 1, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.