Lake Maratanza Dam
Key Takeaway
Lake Maratanza Dam is classified as significant hazard in New York. It was completed in 1923 and is 103 years old. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 12 ft (taller than 23.2% in NY) |
| Dam Length | 1,000 ft |
| Dam Type | Earth |
| Max Storage | 323 acre-ft |
| Normal Storage | 133 acre-ft |
| Surface Area | 38 acres |
| Drainage Area | 0 sq mi |
| Year Completed | 1923 (103 years old) |
| NID ID | NY01433 |
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
NYSOPRHP - PALISADES INTERSTATE PARK COMMISSION;VILLAGE OF ELLENVILLE
Local Government
Nearby Dams
I Scott Watkins Dam
Ulster, NY
Low Hazard 10 ftPinebush Lake Dam
Ulster, NY
Low Hazard 15 ftFly Brook Dam
Ulster, NY
Low Hazard 25 ftHonk Falls Dam
Ulster, NY
High Hazard 42 ftLyon Lodge Dam
Ulster, NY
Significant Hazard 12 ftNorth Woods Dam #2
Ulster, NY
Low Hazard 18 ftTillson Lake Dam
Ulster, NY
High Hazard 39 ftCape Pond Dam
Ulster, NY
Significant Hazard 20 ftFrequently Asked Questions
What is the hazard classification of Lake Maratanza Dam?
Lake Maratanza 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 Lake Maratanza Dam?
Lake Maratanza Dam is owned by NYSOPRHP - PALISADES INTERSTATE PARK COMMISSION;VILLAGE OF ELLENVILLE (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Maratanza Dam built?
Lake Maratanza Dam was completed in 1923, making it 103 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 Lake Maratanza Dam?
Lake Maratanza Dam 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 Lake Maratanza Dam?
Lake Maratanza Dam has a dam height of 12 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 Lake Maratanza Dam last inspected?
Lake Maratanza Dam was last inspected on July 25, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.