Stanley Mill
Stanley Mill is a gravity dam located in Chippewa County, Wisconsin, built in 1890. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Stanley Mill
The primary purpose of Stanley Mill is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by City Of Stanley (local government). It impounds the Wolf River near Stanley.
The dam stands 22 feet tall and stretches 670 feet across, creates a reservoir covering 34 acres, has a maximum storage capacity of 400 acre-feet, and collects water from a drainage area of 31 square miles. Completed in 1890, the structure is over a century old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in 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 05/18/2021.
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Location
| State | Wisconsin |
| County | Chippewa |
| Nearest City | Stanley |
| River/Stream | Wolf River |
| Coordinates | 44.96219, -90.94432 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 22 ft |
| Dam Height | 22 ft |
| Dam Length | 670 ft |
| Year Completed | 1890 (136 years old) |
Storage & Hydraulics
| NID Storage | 400 acre-ft |
| Max Storage | 400 acre-ft |
| Normal Storage | 150 acre-ft |
| Surface Area | 34 acres |
| Drainage Area | 31 sq mi |
| Max Discharge | 4,160 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | City Of Stanley |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/18/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WI00107 |
| Federal ID | WI00107 |
| More Info | State Dam Safety Program |