Glen Ellen Subwatershed Site 3-2
Key Takeaway
Glen Ellen Subwatershed Site 3-2 is classified as high hazard in Iowa. It was completed in 1963 and is 63 years old. Its primary use is fire protection. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 32 ft (taller than 58.4% in IA) |
| Dam Length | 530 ft |
| Dam Type | Earth |
| Max Storage | 65 acre-ft |
| Normal Storage | 32 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1963 (63 years old) |
| Year Modified | 2008 |
| NID ID | IA01253 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Woodbury County SWCD
Local Government
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Low Hazard 36 ftFrequently Asked Questions
What is the hazard classification of Glen Ellen Subwatershed Site 3-2?
Glen Ellen Subwatershed Site 3-2 is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Glen Ellen Subwatershed Site 3-2?
Glen Ellen Subwatershed Site 3-2 is owned by Woodbury County SWCD (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Glen Ellen Subwatershed Site 3-2 built?
Glen Ellen Subwatershed Site 3-2 was completed in 1963, making it 63 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 Glen Ellen Subwatershed Site 3-2?
Glen Ellen Subwatershed Site 3-2 serves the following purposes: Fire Protection, Stock, Or Small Fish Pond, Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Glen Ellen Subwatershed Site 3-2?
Glen Ellen Subwatershed Site 3-2 has a dam height of 32 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 Glen Ellen Subwatershed Site 3-2 last inspected?
Glen Ellen Subwatershed Site 3-2 was last inspected on August 4, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.