Diamond Lake Dam (Poweshiek Co)
Key Takeaway
Diamond Lake Dam (Poweshiek Co) is classified as significant hazard in Iowa. It was completed in 1952 and is 74 years old. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 40 ft (taller than 84% in IA) |
| Dam Length | 900 ft |
| Dam Type | Earth |
| Max Storage | 1.1K acre-ft |
| Normal Storage | 780 acre-ft |
| Surface Area | 93 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1952 (74 years old) |
| NID ID | IA01368 |
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
Montezuma Water Works Board
Local Government
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Low Hazard 27 ftFrequently Asked Questions
What is the hazard classification of Diamond Lake Dam (Poweshiek Co)?
Diamond Lake Dam (Poweshiek Co) 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 Diamond Lake Dam (Poweshiek Co)?
Diamond Lake Dam (Poweshiek Co) is owned by Montezuma Water Works Board (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Diamond Lake Dam (Poweshiek Co) built?
Diamond Lake Dam (Poweshiek Co) was completed in 1952, making it 74 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 Diamond Lake Dam (Poweshiek Co)?
Diamond Lake Dam (Poweshiek Co) serves the following purposes: Water Supply, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Diamond Lake Dam (Poweshiek Co)?
Diamond Lake Dam (Poweshiek Co) has a dam height of 40 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 Diamond Lake Dam (Poweshiek Co) last inspected?
Diamond Lake Dam (Poweshiek Co) was last inspected on June 14, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.