Alexander Dam
Low Hazard ConditionEmergency Action Plan: Not Required
Location
| State | South Dakota |
| County | Sully |
| Nearest City | NONE |
| River/Stream | TR-Mail Shack Creek |
| Coordinates | 44.69855, -100.56315 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 38 ft |
| Dam Height | 38 ft |
| Dam Length | 870 ft |
| Year Completed | 1976 (50 years old) |
Storage & Hydraulics
| NID Storage | 1,150 acre-ft |
| Max Storage | 1,150 acre-ft |
| Normal Storage | 890 acre-ft |
| Max Discharge | 2,080 cfs |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | Rocky Alexander |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |