Canaan Lake Dam is a concrete dam located in Suffolk County, New York, built in 1912. It carries a Low hazard potential classification.
Dam profile
NID height · 7 ft7 ft tall and 500 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Canaan Lake Dam
The primary purpose of Canaan Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Town of Brookhaven (local government). It impounds the Patchogue River near North Patchogue.
The dam stands 7 feet tall and stretches 500 feet across, creates a reservoir covering 22 acres, has a maximum storage capacity of 162 acre-feet, and collects water from a drainage area of 12 square miles. Completed in 1912, 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 03/24/1971. That was over 55 years ago.
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Location
| State | New York |
| County | Suffolk |
| Nearest City | North Patchogue |
| River/Stream | Patchogue River |
| Coordinates | 40.78500, -73.02250 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 7 ft |
| Dam Height | 7 ft |
| Dam Length | 500 ft |
| Year Completed | 1912 (114 years old) |
Storage & Hydraulics
| NID Storage | 162 acre-ft |
| Max Storage | 162 acre-ft |
| Normal Storage | 65 acre-ft |
| Surface Area | 22 acres |
| Drainage Area | 12 sq mi |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Town of Brookhaven |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 03/24/1971 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NY14098 |
| Federal ID | NY14098 |
| More Info | State Dam Safety Program |