Lake Pahoja Dam
Key Takeaway
Lake Pahoja Dam is classified as significant hazard in Iowa. It was completed in 1974 and is 52 years old. Its primary use is fire protection. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 50 ft (taller than 95.3% in IA) |
| Dam Length | 1,305 ft |
| Dam Type | Earth |
| Max Storage | 2.3K acre-ft |
| Normal Storage | 893 acre-ft |
| Surface Area | 72 acres |
| Drainage Area | 6 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1974 (52 years old) |
| NID ID | IA00604 |
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
Lyon County Conservation Board
Local Government
Nearby Dams
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Low Hazard 31 ftChristensen Dam
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Significant Hazard 27 ftFrequently Asked Questions
What is the hazard classification of Lake Pahoja Dam?
Lake Pahoja Dam 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 Lake Pahoja Dam?
Lake Pahoja Dam is owned by Lyon County Conservation Board (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Pahoja Dam built?
Lake Pahoja Dam was completed in 1974, making it 52 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 Lake Pahoja Dam?
Lake Pahoja Dam serves the following purposes: Fire Protection, Stock, Or Small Fish Pond, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Lake Pahoja Dam?
Lake Pahoja Dam has a dam height of 50 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 Lake Pahoja Dam last inspected?
Lake Pahoja Dam was last inspected on June 1, 2016. Inspection dates indicate when a formal review occurred, not the results of that inspection.