Hannawa
Low HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| State | New York |
| County | St. Lawrence |
| Nearest City | Potsdam |
| River/Stream | Raquette River |
| Coordinates | 44.61200, -74.97470 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 34 ft |
| Dam Height | 34 ft |
| Dam Length | 255 ft |
| Year Completed | 1902 (124 years old) |
Storage & Hydraulics
| NID Storage | 690 acre-ft |
| Max Storage | 690 acre-ft |
| Normal Storage | 690 acre-ft |
| Surface Area | 204 acres |
| Drainage Area | 993 sq mi |
| Max Discharge | 12,700 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Erie Boulevard Hydropower, L.P. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/13/2019 |
| Emergency Action Plan | Yes |