Freeborn Lake
Freeborn Lake is an other dam located in Freeborn County, Minnesota, built in 1909. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Freeborn Lake
The primary purpose of Freeborn 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 County Of Freeborn (local government). It impounds the Big Cobb River near Mankato.
The dam stands 7 feet tall and stretches 90 feet across, creates a reservoir covering 2,222 acres, has a maximum storage capacity of 9,141 acre-feet, and collects water from a drainage area of 12 square miles. Completed in 1909, the structure is over a century old.
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 07/21/2022.
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Location
| State | Minnesota |
| County | Freeborn |
| Nearest City | Mankato |
| River/Stream | Big Cobb River |
| Coordinates | 43.75436, -93.57991 |
Physical Characteristics
| Dam Type | Other |
| NID Height | 7 ft |
| Dam Height | 5 ft |
| Dam Length | 90 ft |
| Year Completed | 1909 (117 years old) |
Storage & Hydraulics
| NID Storage | 9,141 acre-ft |
| Max Storage | 9,141 acre-ft |
| Normal Storage | 2,764 acre-ft |
| Surface Area | 2,222 acres |
| Drainage Area | 12 sq mi |
| Max Discharge | 515 cfs |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | County of Freeborn |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/21/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00361 |
| Federal ID | MN00361 |
| More Info | State Dam Safety Program |