O'Farrell Dam No. 1
South Dakota — Grant County — TR-N. FORK WHETSTONE
Location
| State | South Dakota |
| County | Grant |
| River | TR-N. FORK WHETSTONE |
| Coordinates | 45.30601, -96.94591 |
Physical Characteristics
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 400 ft |
| NID Storage | 88 acre-ft |
| Max Storage | 88 acre-ft |
| Surface Area | 7 acres |
Safety Classification
| Hazard Potential | Low |
| Condition Assessment | — |
| EAP Status | Not Required |
| Last Inspection | — |
| Inspection Frequency | — |
Dam Information
| Year Completed | 2005 |
| Primary Purpose | Fish and Wildlife Pond |
| Dam Type | Earth |
| Owner Type | Private |
| Owner | MARIE O'FARRELL |
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.