O'farrell Dam No. 2
Low Hazard ConditionEmergency Action Plan: Not Required
Location
| State | South Dakota |
| County | Grant |
| River/Stream | TR-N. FORK WHETSTONE |
| Coordinates | 45.30059, -96.95483 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 400 ft |
| Year Completed | 2006 (20 years old) |
Storage & Hydraulics
| NID Storage | 65 acre-ft |
| Max Storage | 65 acre-ft |
| Normal Storage | 32 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 2,026 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | MARIE O'FARRELL |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |