Black Brook
Key Takeaway
Black Brook is classified as low hazard in Wisconsin. It was completed in 1917 and is 109 years old. Its primary use is hydroelectric.
Physical Details
| Dam Height | 25 ft (taller than 70.9% in WI) |
| Dam Length | 270 ft |
| Dam Type | Gravity |
| Max Storage | 1.4K acre-ft |
| Normal Storage | 1.2K acre-ft |
| Surface Area | 98 acres |
| Drainage Area | 162 sq mi |
| Max Discharge | 4,500 cfs |
| Year Completed | 1917 (109 years old) |
| NID ID | WI00050 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Northwestern Wisconsin Electric Company
Public Utility
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Black Brook?
Black Brook is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Black Brook?
Black Brook is owned by Northwestern Wisconsin Electric Company (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Black Brook built?
Black Brook was completed in 1917, making it 109 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Black Brook?
Black Brook serves the following purposes: Hydroelectric, Fish And Wildlife Pond, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Black Brook?
Black Brook has a dam height of 25 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was Black Brook last inspected?
Black Brook was last inspected on May 19, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.