Escanaba No 4 Boney Falls
Key Takeaway
Escanaba No 4 Boney Falls is classified as high hazard in Michigan. It was completed in 1920 and is 106 years old. Its primary use is hydroelectric. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 49 ft (taller than 96.5% in MI) |
| Dam Length | 3,300 ft |
| Dam Type | Concrete |
| Max Storage | 1 acre-ft |
| Normal Storage | 1 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 770 sq mi |
| Max Discharge | 100,000 cfs |
| Year Completed | 1920 (106 years old) |
| NID ID | MI00167 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Not Listed
Frequently Asked Questions
What is the hazard classification of Escanaba No 4 Boney Falls?
Escanaba No 4 Boney Falls is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Escanaba No 4 Boney Falls?
Escanaba No 4 Boney Falls is owned by information not available (Not Listed). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Escanaba No 4 Boney Falls built?
Escanaba No 4 Boney Falls was completed in 1920, making it 106 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 Escanaba No 4 Boney Falls?
Escanaba No 4 Boney Falls serves the following purposes: Hydroelectric. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Escanaba No 4 Boney Falls?
Escanaba No 4 Boney Falls has a dam height of 49 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 Escanaba No 4 Boney Falls last inspected?
Escanaba No 4 Boney Falls was last inspected on July 12, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.