Simpson Dam
Key Takeaway
Simpson Dam is classified as low hazard in Michigan. It was completed in 1930 and is 96 years old. Its primary use is recreation.
Physical Details
| Dam Height | 12 ft (taller than 32.7% in MI) |
| Dam Type | Earth |
| Max Storage | 120 acre-ft |
| Normal Storage | 80 acre-ft |
| Surface Area | 25 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 130 cfs |
| Year Completed | 1930 (96 years old) |
| NID ID | MI00832 |
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
John Simpson
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Simpson Dam?
Simpson 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 Simpson Dam?
Simpson Dam is owned by John Simpson (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Simpson Dam built?
Simpson Dam was completed in 1930, making it 96 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 Simpson Dam?
Simpson 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 Simpson Dam?
Simpson Dam has a dam height of 12 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 Simpson Dam last inspected?
Simpson Dam was last inspected on July 31, 2015. Inspection dates indicate when a formal review occurred, not the results of that inspection.