Willis Lake
Willis Lake is an earth dam located in Waseca County, Minnesota. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Willis Lake
The primary purpose of Willis Lake 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 Mndnr-wildlife (state). It impounds the Mayhew Creek-tr near Elysian.
The dam stands 9 feet tall, creates a reservoir covering 90 acres, has a maximum storage capacity of 500 acre-feet, and collects water from a drainage area of 0 square miles.
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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 06/22/2023.
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Location
| State | Minnesota |
| County | Waseca |
| Nearest City | Elysian |
| River/Stream | Mayhew Creek-tr |
| Coordinates | 44.16983, -93.71787 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 9 ft |
| Dam Height | 9 ft |
Storage & Hydraulics
| NID Storage | 500 acre-ft |
| Max Storage | 500 acre-ft |
| Normal Storage | 100 acre-ft |
| Surface Area | 90 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | MNDNR-Wildlife |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/22/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN01250 |
| Federal ID | MN01250 |
| More Info | State Dam Safety Program |