Boyette Sa-6 is an earth dam located in Polk County, Florida, built in 1966. It carries a Significant hazard potential classification.
Dam profile
NID height · 16 ft16 ft tall and 9,000 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Boyette Sa-6
The primary purpose of Boyette Sa-6 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 Hurrah Creek near Boyette.
The dam stands 16 feet tall and stretches 9,000 feet across, creates a reservoir covering 52 acres, and has a maximum storage capacity of 836 acre-feet. Completed in 1966, the structure is well into its service life at over 50 years old.
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.
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Location
| State | Florida |
| County | Polk |
| Nearest City | Boyette |
| River/Stream | Hurrah Creek |
| Coordinates | 27.78000, -81.20000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 16 ft |
| Dam Height | 16 ft |
| Dam Length | 9,000 ft |
| Year Completed | 1966 (60 years old) |
Storage & Hydraulics
| NID Storage | 836 acre-ft |
| Max Storage | 836 acre-ft |
| Normal Storage | 836 acre-ft |
| Surface Area | 52 acres |
| Max Discharge | 220 cfs |
Ownership & Safety
| Purpose | Tailings |
| Owner | The Mosaic Company |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Emergency Action Plan | No |
Identifiers
| NID ID | FL00570 |
| Federal ID | FL00570 |
| More Info | State Dam Safety Program |