Thunder Hole Dam
Key Takeaway
Thunder Hole Dam is classified as low hazard in Michigan. It was completed in 1966 and is 60 years old. Its primary use is recreation.
Physical Details
| Dam Height | 26 ft (taller than 85.3% in MI) |
| Dam Length | 270 ft |
| Dam Type | Earth |
| Max Storage | 91 acre-ft |
| Normal Storage | 78 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 900 cfs |
| Year Completed | 1966 (60 years old) |
| NID ID | MI00651 |
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
Don & Evelyn Kunst
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Thunder Hole Dam?
Thunder Hole 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 Thunder Hole Dam?
Thunder Hole Dam is owned by Don & Evelyn Kunst (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Thunder Hole Dam built?
Thunder Hole Dam was completed in 1966, making it 60 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 Thunder Hole Dam?
Thunder Hole 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 Thunder Hole Dam?
Thunder Hole Dam has a dam height of 26 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 Thunder Hole Dam last inspected?
Thunder Hole Dam was last inspected on May 21, 2006. Inspection dates indicate when a formal review occurred, not the results of that inspection.