Grizzly Gulch Tailings Dam
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| State | South Dakota |
| County | Lawrence |
| Nearest City | PLUMA |
| River/Stream | GRIZZLY GULCH |
| Coordinates | 44.33333, -103.73999 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 380 ft |
| Dam Height | 380 ft |
| Dam Length | 2,000 ft |
| Year Completed | 1998 (28 years old) |
Storage & Hydraulics
| NID Storage | 20,200 acre-ft |
| Max Storage | 20,200 acre-ft |
| Normal Storage | 2,100 acre-ft |
| Surface Area | 304 acres |
| Drainage Area | 2 sq mi |
Ownership & Safety
| Purpose | Tailings |
| Owner | HOMESTAKE MINING COMPANY |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/06/2022 |
| Emergency Action Plan | Yes |