Otter Lake
Otter Lake is an earth dam located in Chippewa County, Wisconsin, built in 1964. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Otter Lake
The primary purpose of Otter Lake is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Chippewa County (local government). It impounds the Otter Creek.
The dam stands 25 feet tall and stretches 1,200 feet across, creates a reservoir covering 673 acres, has a maximum storage capacity of 15,000 acre-feet, and collects water from a drainage area of 26 square miles. Completed in 1964, the structure is well into its service life at over 50 years 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. An emergency action plan is in place for this dam. The most recent inspection on record was 07/18/2017.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Wisconsin |
| County | Chippewa |
| Nearest City | None |
| River/Stream | Otter Creek |
| Coordinates | 45.09054, -90.95304 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 1,200 ft |
| Year Completed | 1964 (62 years old) |
Storage & Hydraulics
| NID Storage | 15,000 acre-ft |
| Max Storage | 15,000 acre-ft |
| Normal Storage | 10,000 acre-ft |
| Surface Area | 673 acres |
| Drainage Area | 26 sq mi |
| Max Discharge | 7,276 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Chippewa County |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/18/2017 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WI00066 |
| Federal ID | WI00066 |
| More Info | State Dam Safety Program |