Lower Twin Lake
High HazardNot Rated ConditionEmergency Action Plan: Yes
Location
| State | South Carolina |
| County | Richland |
| Nearest City | Columbia |
| River/Stream | Mill Creek |
| Coordinates | 33.99298, -80.90860 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 18 ft |
| Dam Length | 530 ft |
| Year Completed | 1940 (86 years old) |
Storage & Hydraulics
| NID Storage | 650 acre-ft |
| Max Storage | 650 acre-ft |
| Normal Storage | 250 acre-ft |
| Surface Area | 25 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 1,500 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Fort Jackson |
| Owner Type | Federal |
| Hazard Classification | High |
| Condition Assessment | Not Rated |
| Last Inspection | 03/24/2021 |
| Emergency Action Plan | Yes |