Great Patchogue Lake Dam
Great Patchogue Lake Dam is an earth dam located in Suffolk County, New York, built in 1917. It carries a Low hazard potential classification.
About Great Patchogue Lake Dam
The primary purpose of Great Patchogue Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Suffolk County Soil & Water Conservation District (local government). It impounds the Patchogue River near Patchogue.
The dam stands 11 feet tall and stretches 1,500 feet across, creates a reservoir covering 49 acres, has a maximum storage capacity of 195 acre-feet, and collects water from a drainage area of 13 square miles. Completed in 1917, the structure is over a century old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 07/24/1997. That was over 28 years ago.
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Location
| State | New York |
| County | Suffolk |
| Nearest City | Patchogue |
| River/Stream | Patchogue River |
| Coordinates | 40.76667, -73.02111 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 11 ft |
| Dam Height | 11 ft |
| Dam Length | 1,500 ft |
| Year Completed | 1917 (109 years old) |
Storage & Hydraulics
| NID Storage | 195 acre-ft |
| Max Storage | 195 acre-ft |
| Normal Storage | 195 acre-ft |
| Surface Area | 49 acres |
| Drainage Area | 13 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | SUFFOLK COUNTY SOIL & WATER CONSERVATION DISTRICT |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 07/24/1997 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NY14097 |
| Federal ID | NY14097 |
| More Info | State Dam Safety Program |