Big Coon Subwatershed Site 3a-4
Key Takeaway
Big Coon Subwatershed Site 3a-4 is classified as low hazard in Iowa. It was completed in 1999 and is 27 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 36 ft (taller than 74.2% in IA) |
| Dam Length | 457 ft |
| Dam Type | Earth |
| Max Storage | 78 acre-ft |
| Normal Storage | 27 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1999 (27 years old) |
| NID ID | IA03245 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
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 32 ftFrequently Asked Questions
What is the hazard classification of Big Coon Subwatershed Site 3a-4?
Big Coon Subwatershed Site 3a-4 is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Big Coon Subwatershed Site 3a-4?
Big Coon Subwatershed Site 3a-4 is owned by Woodbury County SWCD (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Big Coon Subwatershed Site 3a-4 built?
Big Coon Subwatershed Site 3a-4 was completed in 1999, making it 27 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 Big Coon Subwatershed Site 3a-4?
Big Coon Subwatershed Site 3a-4 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 Big Coon Subwatershed Site 3a-4?
Big Coon Subwatershed Site 3a-4 has a dam height of 36 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.