Hil21
Key Takeaway
Hil21 is classified as unknown in Florida. Its primary use is tailings.
Physical Details
| Dam Height | 51 ft (taller than 88.6% in FL) |
| Dam Length | 18,842 ft |
| Dam Type | Earth |
| Max Storage | 29.9K acre-ft |
| Normal Storage | 4.7K acre-ft |
| Surface Area | 497 acres |
| NID ID | FL12019 |
Safety Information
Hazard potential has not been determined.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
THE MOSAIC COMPANY
Private
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Significant Hazard 20 ftFrequently Asked Questions
What is the hazard classification of Hil21?
Hil21 is classified as Unknown. Hazard potential has not been determined. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Hil21?
Hil21 is owned by THE MOSAIC COMPANY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
What is the primary purpose of Hil21?
Hil21 serves the following purposes: Tailings. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Hil21?
Hil21 has a dam height of 51 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.