Twelve Mile Creek Watershed Site D-62-1
Key Takeaway
Twelve Mile Creek Watershed Site D-62-1 is classified as significant hazard in Iowa. It was completed in 1985 and is 41 years old. Its primary use is flood risk reduction. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 35 ft (taller than 70.9% in IA) |
| Dam Length | 644 ft |
| Dam Type | Earth |
| Max Storage | 315 acre-ft |
| Normal Storage | 67 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1985 (41 years old) |
| NID ID | IA02308 |
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
Union County SWCD
Local Government
Nearby Dams
Twelve Mile Creek Watershed Site M-1
Union, IA
High Hazard 66 ftTwelve Mile Creek Watershed Site 62-4
Union, IA
Low Hazard 30 ftTwelve Mile Creek Watershed Site 62-5
Union, IA
Low Hazard 36 ftBrown Dam
Union, IA
Low Hazard 30 ftBeattie Dam
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Low Hazard 43 ftBeattle Dam
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Low Hazard 32 ftTwelvemile Watershed Site D-60
Union, IA
Low Hazard 35 ftTwelve Mile Creek Watershed Site 67
Union, IA
Low Hazard 28 ftFrequently Asked Questions
What is the hazard classification of Twelve Mile Creek Watershed Site D-62-1?
Twelve Mile Creek Watershed Site D-62-1 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 Twelve Mile Creek Watershed Site D-62-1?
Twelve Mile Creek Watershed Site D-62-1 is owned by Union County SWCD (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Twelve Mile Creek Watershed Site D-62-1 built?
Twelve Mile Creek Watershed Site D-62-1 was completed in 1985, making it 41 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 Twelve Mile Creek Watershed Site D-62-1?
Twelve Mile Creek Watershed Site D-62-1 serves the following purposes: Flood Risk Reduction, Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Twelve Mile Creek Watershed Site D-62-1?
Twelve Mile Creek Watershed Site D-62-1 has a dam height of 35 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 Twelve Mile Creek Watershed Site D-62-1 last inspected?
Twelve Mile Creek Watershed Site D-62-1 was last inspected on June 10, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.