Olson Dam
Key Takeaway
Olson Dam is classified as low hazard in Iowa. It was completed in 1969 and is 57 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 24 ft (taller than 15.8% in IA) |
| Dam Length | 412 ft |
| Dam Type | Earth |
| Max Storage | 131 acre-ft |
| Normal Storage | 14 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1969 (57 years old) |
| NID ID | IA01013 |
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
Jean Olson
Private
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Low Hazard 30 ftFrequently Asked Questions
What is the hazard classification of Olson Dam?
Olson 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 Olson Dam?
Olson Dam is owned by Jean Olson (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Olson Dam built?
Olson Dam was completed in 1969, making it 57 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 Olson Dam?
Olson 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 Olson Dam?
Olson Dam has a dam height of 24 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 Olson Dam last inspected?
Olson Dam was last inspected on October 2, 2013. Inspection dates indicate when a formal review occurred, not the results of that inspection.