Geode Lake Dam
Key Takeaway
Geode Lake Dam is classified as significant hazard in Iowa. It was completed in 1949 and is 77 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 59 ft (taller than 98.4% in IA) |
| Dam Length | 1,060 ft |
| Dam Type | Earth |
| Max Storage | 6.2K acre-ft |
| Normal Storage | 4.7K acre-ft |
| Surface Area | 195 acres |
| Drainage Area | 15 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1949 (77 years old) |
| Year Modified | 1954 |
| NID ID | IA01347 |
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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What is the hazard classification of Geode Lake Dam?
Geode 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 Geode Lake Dam?
Geode 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 Geode Lake Dam built?
Geode Lake Dam was completed in 1949, making it 77 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 Geode Lake Dam?
Geode 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 Geode Lake Dam?
Geode Lake Dam has a dam height of 59 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 Geode Lake Dam last inspected?
Geode Lake Dam was last inspected on May 22, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.