Niemi No.4
Significant Hazard ConditionEmergency Action Plan: Not Required
Location
| State | South Dakota |
| County | Harding |
| River/Stream | Sheep Creek |
| Coordinates | 45.63474, -103.52630 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 19 ft |
| Dam Height | 19 ft |
| Dam Length | 300 ft |
| Year Completed | 1954 (72 years old) |
Storage & Hydraulics
| NID Storage | 61 acre-ft |
| Max Storage | 61 acre-ft |
| Normal Storage | 48 acre-ft |
| Max Discharge | 630 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | JOHN NIEMI |
| Owner Type | Private |
| Hazard Classification | Significant |
| Emergency Action Plan | Not Required |