Diamond Island Diversion Dam
Low HazardNot Rated ConditionEmergency Action Plan: Not Required
Location
| County | Jefferson |
| Nearest City | Watertown |
| River/Stream | BLACK RIVER |
| Coordinates | 43.98278, -75.88583 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 710 ft |
| Year Completed | 1914 (112 years old) |
Storage & Hydraulics
| NID Storage | 134 acre-ft |
| Normal Storage | 134 acre-ft |
| Surface Area | 31 acres |
| Drainage Area | 1,888 sq mi |
| Max Discharge | 52,000 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Central Rivers Power, LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 07/31/1998 |
| Emergency Action Plan | Not Required |