W3 Mix Area South Pasture
W3 Mix Area South Pasture is an earth dam located in Hardee County, Florida, built in 2004. It carries a Significant hazard potential classification.
About W3 Mix Area South Pasture
The primary purpose of W3 Mix Area South Pasture is tailings. Tailings dams contain waste material from mining operations — typically a slurry of finely ground rock left over after valuable minerals have been extracted. These structures require ongoing monitoring because tailings can contain heavy metals and other contaminants. The dam is owned by The Mosaic Company (private). It impounds the Peace River near Ona.
The dam stands 32 feet tall and stretches 12,400 feet across, creates a reservoir covering 370 acres, has a maximum storage capacity of 10,000 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2004, the structure is relatively new.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. An emergency action plan is in place for this dam. The most recent inspection on record was 01/23/2006. That was over 20 years ago.
At 32 feet, this dam is taller than 76% of dams nationwide.
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Location
| State | Florida |
| County | Hardee |
| Nearest City | Ona |
| River/Stream | Peace River |
| Coordinates | 27.58500, -81.87490 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 32 ft |
| Dam Height | 30 ft |
| Dam Length | 12,400 ft |
| Year Completed | 2004 (22 years old) |
Storage & Hydraulics
| NID Storage | 10,000 acre-ft |
| Max Storage | 10,000 acre-ft |
| Normal Storage | 9,250 acre-ft |
| Surface Area | 370 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 20 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Tailings |
| Owner | THE MOSAIC COMPANY |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not Rated |
| Last Inspection | 01/23/2006 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | FL11078 |
| Federal ID | FL11078 |
| More Info | State Dam Safety Program |