Potagannissing Dam
Key Takeaway
Potagannissing Dam is classified as low hazard in Michigan. It was completed in 1948 and is 78 years old. Its primary use is recreation.
Physical Details
| Dam Height | 7 ft (taller than 1.3% in MI) |
| Dam Length | 500 ft |
| Dam Type | Earth |
| Max Storage | 6.2K acre-ft |
| Normal Storage | 1.8K acre-ft |
| Surface Area | 2,200 acres |
| Drainage Area | 33 sq mi |
| Year Completed | 1948 (78 years old) |
| NID ID | MI00784 |
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
MDNR Wildlife
State Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Potagannissing Dam?
Potagannissing Dam 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 Potagannissing Dam?
Potagannissing Dam is owned by MDNR Wildlife (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Potagannissing Dam built?
Potagannissing Dam was completed in 1948, making it 78 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 Potagannissing Dam?
Potagannissing Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Potagannissing Dam?
Potagannissing Dam has a dam height of 7 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 Potagannissing Dam last inspected?
Potagannissing Dam was last inspected on June 9, 2015. Inspection dates indicate when a formal review occurred, not the results of that inspection.