Loon Lake is a rockfill dam located in Burnett County, Wisconsin, built in 1938. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 13 ft13 ft tall and 236 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic rockfill embankment section and the water level is illustrative.
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 Burnett County (local government). It impounds the Loon Creek.
The dam stands 13 feet tall and stretches 236 feet across, creates a reservoir covering 228 acres, has a maximum storage capacity of 3,800 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1938, 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 11/30/2017.
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Location
| State | Wisconsin |
| County | Burnett |
| Nearest City | None |
| River/Stream | Loon Creek |
| Coordinates | 45.98299, -92.17485 |
Physical Characteristics
| Dam Type | Rockfill |
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 236 ft |
| Year Completed | 1938 (88 years old) |
Storage & Hydraulics
| NID Storage | 3,800 acre-ft |
| Max Storage | 3,800 acre-ft |
| Normal Storage | 2,280 acre-ft |
| Surface Area | 228 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 92 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Burnett County |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 11/30/2017 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WI00243 |
| Federal ID | WI00243 |
| More Info | State Dam Safety Program |