Lake Mills
Wisconsin — Jefferson County — ROCK CREEK
Location
| State | Wisconsin |
| County | Jefferson |
| River | ROCK CREEK |
| Coordinates | 43.07875, -88.91379 |
Physical Characteristics
| NID Height | 17 ft |
| Dam Height | 17 ft |
| Dam Length | 400 ft |
| NID Storage | 28,330 acre-ft |
| Max Storage | 28,330 acre-ft |
| Surface Area | 1,371 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Satisfactory |
| EAP Status | Yes |
| Last Inspection | August 5, 2021 |
| Inspection Frequency | 2 |
Dam Information
| Year Completed | 1865 |
| Primary Purpose | Recreation |
| Dam Type | Gravity |
| Owner Type | Local Government |
| Owner | City of Lake Mills |
| Other Name | Rock Lake |
Location Map
About This Dam Record
Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.