Ninety Nine Islands
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| State | South Carolina |
| County | Cherokee |
| Nearest City | Lockhart |
| River/Stream | Broad |
| Coordinates | 35.03077, -81.49458 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 72 ft |
| Dam Height | 72 ft |
| Dam Length | 1,568 ft |
| Year Completed | 1909 (117 years old) |
Storage & Hydraulics
| NID Storage | 2,300 acre-ft |
| Max Storage | 2,300 acre-ft |
| Normal Storage | 2,300 acre-ft |
| Surface Area | 350 acres |
| Drainage Area | 1,550 sq mi |
| Max Discharge | 145,000 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Duke Energy |
| Owner Type | Public Utility |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 03/28/2022 |
| Emergency Action Plan | Yes |