Long Sault
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| State | New York |
| County | St. Lawrence |
| Nearest City | Cornwall |
| River/Stream | St. Lawrence River |
| Coordinates | 44.99640, -74.86460 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 132 ft |
| Dam Height | 104 ft |
| Dam Length | 2,960 ft |
| Year Completed | 1958 (68 years old) |
Storage & Hydraulics
| NID Storage | 803,000 acre-ft |
| Max Storage | 803,000 acre-ft |
| Normal Storage | 750,000 acre-ft |
| Surface Area | 37,500 acres |
| Drainage Area | 300,000 sq mi |
| Max Discharge | 1,250,000 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | New York Power Authority |
| Owner Type | State |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/03/2022 |
| Emergency Action Plan | Yes |