Leeward Lake Dam

BLACK CREEK· Wayne, New York· Earth· 16 ft tall
Significant Hazard Flood Risk Reduction Private

Key Takeaway

Leeward Lake Dam is classified as significant hazard in New York. Its primary use is flood risk reduction. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 16 ft (taller than 42.9% in NY)
Dam TypeEarth
Max Storage80 acre-ft
Normal Storage72 acre-ft
Surface Area7 acres
Drainage Area16 sq mi
Max Discharge1,930 cfs
NID IDNY14876

Safety Information

Significant Hazard

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?

Emergency Action Plan: No
Last Inspection: April 30, 2018
State Regulated: Yes
Regulatory Agency: NYS DEC

Ownership

Leeward Lake Properties LLC

Private

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Frequently Asked Questions

What is the hazard classification of Leeward Lake Dam?

Leeward 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 Leeward Lake Dam?

Leeward Lake Dam is owned by Leeward Lake Properties LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Leeward Lake Dam?

Leeward Lake Dam serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Leeward Lake Dam?

Leeward Lake Dam has a dam height of 16 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 Leeward Lake Dam last inspected?

Leeward Lake Dam was last inspected on April 30, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.

Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.