Loon Lake
Loon Lake is a gravity dam located in Jackson County, Minnesota, built in 1935. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Loon Lake
The primary purpose of Loon Lake is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by County Of Jackson (local government). It impounds the Loon Creek near Spirit Lake Iowa.
The dam stands 8 feet tall and stretches 30 feet across, creates a reservoir covering 707 acres, has a maximum storage capacity of 5,000 acre-feet, and collects water from a drainage area of 32 square miles. Completed in 1935, 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 03/13/2015. That was over 11 years ago.
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Location
| State | Minnesota |
| County | Jackson |
| Nearest City | Spirit Lake Iowa |
| River/Stream | Loon Creek |
| Coordinates | 43.52166, -95.10226 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 8 ft |
| Dam Height | 7 ft |
| Dam Length | 30 ft |
| Year Completed | 1935 (91 years old) |
Storage & Hydraulics
| NID Storage | 5,000 acre-ft |
| Max Storage | 5,000 acre-ft |
| Normal Storage | 3,000 acre-ft |
| Surface Area | 707 acres |
| Drainage Area | 32 sq mi |
| Max Discharge | 265 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | County of Jackson |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 03/13/2015 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00116 |
| Federal ID | MN00116 |
| More Info | State Dam Safety Program |