Grandfather Falls
Wisconsin — Lincoln County — Wisconsin River
Location
| State | Wisconsin |
| County | Lincoln |
| River | Wisconsin River |
| Coordinates | 45.31330, -89.78500 |
Physical Characteristics
| NID Height | 32 ft |
| Dam Height | 32 ft |
| Dam Length | 700 ft |
| NID Storage | 2,540 acre-ft |
| Max Storage | 2,450 acre-ft |
| Surface Area | 200 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Satisfactory |
| EAP Status | Yes |
| Last Inspection | July 20, 2022 |
| Inspection Frequency | 1 |
Dam Information
| Year Completed | 1906 |
| Primary Purpose | Hydroelectric |
| Dam Type | Gravity |
| Owner Type | Public Utility |
| Owner | Wisconsin Public Service Corporation |
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.