Koski Dam
Key Takeaway
Koski Dam is classified as low hazard in Iowa. It was completed in 2011 and is 15 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 41 ft (taller than 86.2% in IA) |
| Dam Length | 500 ft |
| Dam Type | Earth |
| Max Storage | 48 acre-ft |
| Normal Storage | 15 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 13 cfs |
| Year Completed | 2011 (15 years old) |
| NID ID | IA04179 |
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
George Koski
Private
Nearby Dams
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Low Hazard 41 ftHanigan Dam
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Low Hazard 44 ftFrequently Asked Questions
What is the hazard classification of Koski Dam?
Koski 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 Koski Dam?
Koski Dam is owned by George Koski (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Koski Dam built?
Koski Dam was completed in 2011, making it 15 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 Koski Dam?
Koski Dam serves the following purposes: Flood Risk Reduction, Grade Stabilization, Fish And Wildlife Pond, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Koski Dam?
Koski Dam has a dam height of 41 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.