Leeward Lake Dam is an earth dam located in Wayne County, New York. It carries a Significant hazard potential classification.
Dam profile
NID height · 16 ft16 ft tall. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
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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Location
| State | New York |
| County | Wayne |
| Nearest City | Walworth |
| River/Stream | Black Creek |
| Coordinates | 43.13139, -77.29806 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 16 ft |
| Dam Height | 16 ft |
Storage & Hydraulics
| NID Storage | 80 acre-ft |
| Max Storage | 80 acre-ft |
| Normal Storage | 72 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 16 sq mi |
| Max Discharge | 1,930 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Leeward Lake Properties LLC |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 05/10/2022 |
| Emergency Action Plan | No |
Identifiers
| NID ID | NY14876 |
| Federal ID | NY14876 |
| More Info | State Dam Safety Program |