Rock Cowan No. 1
Low Hazard ConditionEmergency Action Plan: Not Required
Location
| State | South Dakota |
| County | Dewey |
| Nearest City | NONE |
| River/Stream | TR MOREAU |
| Coordinates | 45.07666, -101.43166 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 26 ft |
| Dam Height | 26 ft |
| Dam Length | 660 ft |
| Year Completed | 1950 (76 years old) |
Storage & Hydraulics
| NID Storage | 200 acre-ft |
| Max Storage | 200 acre-ft |
| Normal Storage | 120 acre-ft |
| Max Discharge | 6,000 cfs |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | ROCK COWAN |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |