Pool No. 22
Pool No. 22 is an earth dam located in Marshall County, Minnesota, built in 1946. It carries a Low hazard potential classification.
About Pool No. 22
The primary purpose of Pool No. 22 is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Usfws (federal). It impounds the Mud River near Thief River Falls.
The dam stands 8 feet tall and stretches 5,000 feet across, and has a maximum storage capacity of 1,390 acre-feet. Completed in 1946, the structure is well-established, with more than 75 years of service.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life.
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Location
| State | Minnesota |
| County | Marshall |
| Nearest City | Thief River Falls |
| River/Stream | Mud River |
| Coordinates | 48.36508, -95.92335 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 8 ft |
| Dam Height | 8 ft |
| Dam Length | 5,000 ft |
| Year Completed | 1946 (80 years old) |
Storage & Hydraulics
| NID Storage | 1,390 acre-ft |
| Max Storage | 1,390 acre-ft |
| Normal Storage | 132 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 |
Identifiers
| NID ID | MN00626 |
| Federal ID | MN00626 |
| More Info | State Dam Safety Program |