Flat Rock
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| State | New York |
| County | St. Lawrence |
| Nearest City | Fine |
| River/Stream | East Branch Oswegatchie River |
| Coordinates | 44.22150, -75.07380 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 72 ft |
| Dam Height | 67 ft |
| Dam Length | 568 ft |
| Year Completed | 1925 (101 years old) |
Storage & Hydraulics
| NID Storage | 3,382 acre-ft |
| Max Storage | 3,382 acre-ft |
| Normal Storage | 3,382 acre-ft |
| Surface Area | 228 acres |
| Drainage Area | 262 sq mi |
| Max Discharge | 12,000 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Erie Boulevard Hydropower, L.P. |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/15/2022 |
| Emergency Action Plan | Yes |