Beaver Lake Dam
Key Takeaway
Beaver Lake Dam is classified as significant hazard in Iowa. It was completed in 1990 and is 36 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 43 ft (taller than 89% in IA) |
| Dam Length | 666 ft |
| Dam Type | Earth |
| Max Storage | 696 acre-ft |
| Normal Storage | 319 acre-ft |
| Surface Area | 34 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1990 (36 years old) |
| NID ID | IA02498 |
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
Iowa Department of Natural Resources
State Government
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Low Hazard 9 ftFrequently Asked Questions
What is the hazard classification of Beaver Lake Dam?
Beaver 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 Beaver Lake Dam?
Beaver Lake Dam is owned by Iowa Department of Natural Resources (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Beaver Lake Dam built?
Beaver Lake Dam was completed in 1990, making it 36 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 Beaver Lake Dam?
Beaver 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 Beaver Lake Dam?
Beaver Lake Dam has a dam height of 43 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 Beaver Lake Dam last inspected?
Beaver Lake Dam was last inspected on May 16, 2016. Inspection dates indicate when a formal review occurred, not the results of that inspection.