Armstrong Irr. Dam
Low Hazard ConditionEmergency Action Plan: Not Required
Location
| State | South Dakota |
| County | Haakon |
| Nearest City | NONE |
| River/Stream | Plum Creek-TR |
| Coordinates | 44.36981, -101.30246 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 21 ft |
| Dam Length | 568 ft |
| Year Completed | 1974 (52 years old) |
Storage & Hydraulics
| NID Storage | 125 acre-ft |
| Max Storage | 125 acre-ft |
| Normal Storage | 65 acre-ft |
| Max Discharge | 1,028 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | MIDLAND FARMS LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |