Pony Creek Watershed Site 30
Key Takeaway
Pony Creek Watershed Site 30 is classified as significant hazard in Iowa. It was completed in 1964 and is 62 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 | 49 ft (taller than 94.6% in IA) |
| Dam Length | 639 ft |
| Dam Type | Earth |
| Max Storage | 528 acre-ft |
| Normal Storage | 270 acre-ft |
| Surface Area | 19 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1964 (62 years old) |
| NID ID | IA00684 |
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
Mills County SWCD
Local Government
Nearby Dams
Pony Creek Watershed Site 22
Mills, IA
Low Hazard 48 ftPony Creek Watershed Site 31
Mills, IA
Low Hazard 38 ftPony Creek Watershed Site 26
Mills, IA
Low Hazard 37 ftPony Creek Watershed Site 21
Mills, IA
High Hazard 75 ftPony Creek Watershed Site 20
Mills, IA
Low Hazard 48 ftPony Creek Watershed Site 24
Mills, IA
Low Hazard 40 ftPony Creek Watershed Site 17
Mills, IA
Low Hazard 62 ftPony Creek Watershed Site 23
Mills, IA
Low Hazard 64 ftFrequently Asked Questions
What is the hazard classification of Pony Creek Watershed Site 30?
Pony Creek Watershed Site 30 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 Pony Creek Watershed Site 30?
Pony Creek Watershed Site 30 is owned by Mills County SWCD (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Pony Creek Watershed Site 30 built?
Pony Creek Watershed Site 30 was completed in 1964, making it 62 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 Pony Creek Watershed Site 30?
Pony Creek Watershed Site 30 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 Pony Creek Watershed Site 30?
Pony Creek Watershed Site 30 has a dam height of 49 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 Pony Creek Watershed Site 30 last inspected?
Pony Creek Watershed Site 30 was last inspected on July 12, 2016. Inspection dates indicate when a formal review occurred, not the results of that inspection.