Sissonville
Sissonville is a concrete dam located in St. Lawrence County, New York, built in 1990. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Sissonville
The primary purpose of Sissonville is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by Sissonville Limited Partnership (private). It impounds the Raquette River near Hewittville.
The dam stands 16 feet tall and stretches 320 feet across, creates a reservoir covering 30 acres, has a maximum storage capacity of 205 acre-feet, and collects water from a drainage area of 1,025 square miles. Completed in 1990, the structure is 36 years 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 06/22/2017.
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Location
| State | New York |
| County | St. Lawrence |
| Nearest City | Hewittville |
| River/Stream | Raquette River |
| Coordinates | 44.68650, -75.00590 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 16 ft |
| Dam Height | 16 ft |
| Dam Length | 320 ft |
| Year Completed | 1990 (36 years old) |
Storage & Hydraulics
| NID Storage | 205 acre-ft |
| Max Storage | 205 acre-ft |
| Normal Storage | 205 acre-ft |
| Surface Area | 30 acres |
| Drainage Area | 1,025 sq mi |
| Max Discharge | 11,500 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Sissonville Limited Partnership |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/22/2017 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NY01601 |
| Federal ID | NY01601 |
| More Info | State Dam Safety Program |