Mayhew Lake
Mayhew Lake is a gravity dam located in Benton County, Minnesota, built in 1949. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Mayhew Lake
The primary purpose of Mayhew Lake is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Mndnr (state). It impounds the Mayhew Creek near Becker.
The dam stands 9 feet tall and stretches 18 feet across, creates a reservoir covering 128 acres, has a maximum storage capacity of 3,100 acre-feet, and collects water from a drainage area of 28 square miles. Completed in 1949, 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 11/07/2017.
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Location
| State | Minnesota |
| County | Benton |
| Nearest City | Becker |
| River/Stream | Mayhew Creek |
| Coordinates | 45.69684, -94.10057 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 9 ft |
| Dam Height | 8 ft |
| Dam Length | 18 ft |
| Year Completed | 1949 (77 years old) |
Storage & Hydraulics
| NID Storage | 3,100 acre-ft |
| Max Storage | 3,100 acre-ft |
| Normal Storage | 2,540 acre-ft |
| Surface Area | 128 acres |
| Drainage Area | 28 sq mi |
| Max Discharge | 675 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | MNDNR |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 11/07/2017 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00241 |
| Federal ID | MN00241 |
| More Info | State Dam Safety Program |