Post Lake Dam
South Dakota — Sully County — Medicine Knoll Creek-TR
Location
| State | South Dakota |
| County | Sully |
| River | Medicine Knoll Creek-TR |
| Coordinates | 44.62206, -99.90271 |
Physical Characteristics
| NID Height | 21 ft |
| Dam Height | 21 ft |
| Dam Length | 400 ft |
| NID Storage | 344 acre-ft |
| Max Storage | 344 acre-ft |
| Surface Area | — |
Safety Classification
| Hazard Potential | Low |
| Condition Assessment | — |
| EAP Status | Not Required |
| Last Inspection | — |
| Inspection Frequency | — |
Dam Information
| Year Completed | 1936 |
| Primary Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Dam Type | Earth |
| Owner Type | Private |
| Owner | DAKOTA SPUR LLC. |
Location Map
About This Dam Record
Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.