Clam Lake is a gravity dam located in Burnett County, Wisconsin, built in 1936. It carries a Low hazard potential classification.
Dam profile
NID height · 10 ft10 ft tall and 110 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Clam Lake
The primary purpose of Clam 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 Clam.
The dam stands 10 feet tall and stretches 110 feet across, creates a reservoir covering 1,207 acres, has a maximum storage capacity of 9,600 acre-feet, and collects water from a drainage area of 325 square miles. Completed in 1936, 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. The most recent inspection on record was 11/11/2019.
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Location
| State | Wisconsin |
| County | Burnett |
| Nearest City | None |
| River/Stream | Clam |
| Coordinates | 45.84148, -92.31163 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 110 ft |
| Year Completed | 1936 (90 years old) |
Storage & Hydraulics
| NID Storage | 9,600 acre-ft |
| Max Storage | 9,600 acre-ft |
| Normal Storage | 3,600 acre-ft |
| Surface Area | 1,207 acres |
| Drainage Area | 325 sq mi |
| Max Discharge | 6,160 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Burnett County |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 11/11/2019 |
| Emergency Action Plan | No |
Identifiers
| NID ID | WI00619 |
| Federal ID | WI00619 |
| More Info | State Dam Safety Program |