Pettegrew Dam
Low Hazard ConditionEmergency Action Plan: Not Required
Location
| State | South Dakota |
| County | Fall River |
| Nearest City | NONE |
| River/Stream | Horsehead Creek-TR |
| Coordinates | 43.02701, -103.31995 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 500 ft |
| Year Completed | 1910 (116 years old) |
Storage & Hydraulics
| NID Storage | 140 acre-ft |
| Max Storage | 140 acre-ft |
| Normal Storage | 98 acre-ft |
| Max Discharge | 2,275 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Delwin Elwess |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |