Big Falls
High HazardFair ConditionEmergency Action Plan: Yes
Location
| State | Wisconsin |
| County | Rusk |
| Nearest City | Ladysmith |
| River/Stream | Flambeau |
| Coordinates | 45.55550, -90.95920 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 50 ft |
| Dam Height | 50 ft |
| Dam Length | 2,196 ft |
| Year Completed | 1923 (103 years old) |
Storage & Hydraulics
| NID Storage | 4,000 acre-ft |
| Max Storage | 4,000 acre-ft |
| Normal Storage | 4,000 acre-ft |
| Surface Area | 369 acres |
| Drainage Area | 1,786 sq mi |
| Max Discharge | 91,000 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Northern States Power Co |
| Owner Type | Public Utility |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 09/20/2022 |
| Emergency Action Plan | Yes |