Simpson Dam
Key Takeaway
Simpson Dam is classified as low hazard in Iowa. It was completed in 1991 and is 35 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 28 ft (taller than 36.9% in IA) |
| Dam Length | 500 ft |
| Dam Type | Earth |
| Max Storage | 155 acre-ft |
| Normal Storage | 51 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1991 (35 years old) |
| NID ID | IA02831 |
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
Virgil Dale Simpson
Private
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Low Hazard 27 ftFrequently 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 Virgil Dale 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 1991, making it 35 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: Fire Protection, Stock, Or Small Fish Pond. 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 28 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.