W. Mann No.1
Low Hazard ConditionEmergency Action Plan: Not Required
Location
| State | South Dakota |
| County | Meade |
| Nearest City | NONE |
| River/Stream | TR CHEYENNE |
| Coordinates | 44.67166, -102.40999 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 17 ft |
| Dam Height | 17 ft |
| Dam Length | 540 ft |
| Year Completed | 1948 (78 years old) |
Storage & Hydraulics
| NID Storage | 228 acre-ft |
| Max Storage | 228 acre-ft |
| Normal Storage | 62 acre-ft |
| Max Discharge | 10,000 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | WILLIS MANN |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |