Izaak Walton Lake Dam
Key Takeaway
Izaak Walton Lake Dam is classified as significant hazard in Iowa. It was completed in 1921 and is 105 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 22 ft (taller than 10.6% in IA) |
| Dam Length | 450 ft |
| Dam Type | Earth |
| Max Storage | 140 acre-ft |
| Normal Storage | 75 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1921 (105 years old) |
| NID ID | IA01882 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Des Moines County Board of Supervisors
Local Government
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Low Hazard 32 ftFrequently Asked Questions
What is the hazard classification of Izaak Walton Lake Dam?
Izaak Walton Lake Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Izaak Walton Lake Dam?
Izaak Walton Lake Dam is owned by Des Moines County Board of Supervisors (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Izaak Walton Lake Dam built?
Izaak Walton Lake Dam was completed in 1921, making it 105 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 Izaak Walton Lake Dam?
Izaak Walton Lake 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 Izaak Walton Lake Dam?
Izaak Walton Lake Dam has a dam height of 22 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.