Monhagen Lake Dike
Key Takeaway
Monhagen Lake Dike is classified as high hazard in New York. It was completed in 1867 and is 159 years old. Its primary use is water supply. 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 | 20 ft (taller than 56.3% in NY) |
| Dam Type | Earth |
| Max Storage | 858 acre-ft |
| Normal Storage | 635 acre-ft |
| Surface Area | 65 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 799 cfs |
| Year Completed | 1867 (159 years old) |
| NID ID | NY00070 |
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
CITY OF MIDDLETOWN
Local Government
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Low Hazard 9 ftFrequently Asked Questions
What is the hazard classification of Monhagen Lake Dike?
Monhagen Lake Dike 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 Monhagen Lake Dike?
Monhagen Lake Dike is owned by CITY OF MIDDLETOWN (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Monhagen Lake Dike built?
Monhagen Lake Dike was completed in 1867, making it 159 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 Monhagen Lake Dike?
Monhagen Lake Dike serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Monhagen Lake Dike?
Monhagen Lake Dike 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 Monhagen Lake Dike last inspected?
Monhagen Lake Dike was last inspected on December 2, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.