Mason1 Dam
Key Takeaway
Mason1 Dam is classified as low hazard in Iowa. It was completed in 2004 and is 22 years old.
Physical Details
| Dam Height | 24 ft (taller than 15.8% in IA) |
| Dam Length | 0 ft |
| Dam Type | Earth |
| Max Storage | 289 acre-ft |
| Normal Storage | 163 acre-ft |
| Surface Area | 24 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 2004 (22 years old) |
| Year Modified | 2006 |
| NID ID | IA03521 |
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
Ronald E Mason
Private
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Low Hazard 25 ftFrequently Asked Questions
What is the hazard classification of Mason1 Dam?
Mason1 Dam 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 Mason1 Dam?
Mason1 Dam is owned by Ronald E Mason (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Mason1 Dam built?
Mason1 Dam was completed in 2004, making it 22 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
How tall is Mason1 Dam?
Mason1 Dam has a dam height of 24 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 Mason1 Dam last inspected?
Mason1 Dam was last inspected on June 23, 2006. Inspection dates indicate when a formal review occurred, not the results of that inspection.