Pool No. 21
Low Hazard ConditionEmergency Action Plan: Not Required
Location
| State | Minnesota |
| County | Marshall |
| Nearest City | THIEF RIVER FALLS |
| River/Stream | Mud River |
| Coordinates | 48.36986, -95.88831 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 8 ft |
| Dam Height | 8 ft |
| Dam Length | 1,300 ft |
| Year Completed | 1971 (55 years old) |
Storage & Hydraulics
| NID Storage | 5,370 acre-ft |
| Max Storage | 5,370 acre-ft |
| Normal Storage | 2,100 acre-ft |
| Max Discharge | 1,400 cfs |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | USFWS |
| Owner Type | Federal |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |