Leeward Lake Dam

Leeward Lake Dam is an earth dam located in Wayne County, New York. It carries a Significant hazard potential classification.

About Leeward Lake Dam

The primary purpose of Leeward Lake Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Leeward Lake Properties Llc (private). It impounds the Black Creek near Walworth.

The dam stands 16 feet tall, creates a reservoir covering 7 acres, has a maximum storage capacity of 80 acre-feet, and collects water from a drainage area of 16 square miles.

This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. The most recent inspection on record was 05/10/2022.

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Significant HazardNot Rated ConditionEmergency Action Plan: No

Location

StateNew York
CountyWayne
Nearest CityWalworth
River/StreamBlack Creek
Coordinates43.13139, -77.29806

Physical Characteristics

Dam TypeEarth
NID Height16 ft
Dam Height16 ft

Storage & Hydraulics

NID Storage80 acre-ft
Max Storage80 acre-ft
Normal Storage72 acre-ft
Surface Area7 acres
Drainage Area16 sq mi
Max Discharge1,930 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerLeeward Lake Properties LLC
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentNot Rated
Last Inspection05/10/2022
Emergency Action PlanNo

Identifiers

NID IDNY14876
Federal IDNY14876
More InfoState Dam Safety Program

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