S-6 Rockland Mine
S-6 Rockland Mine is an earth dam located in Polk County, Florida, built in 1976. It carries a Low hazard potential classification.
About S-6 Rockland Mine
The primary purpose of S-6 Rockland Mine 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 Whidden Creek near Bowling Green.
The dam stands 40 feet tall and stretches 28,000 feet across, creates a reservoir covering 260 acres, and has a maximum storage capacity of 10,400 acre-feet. Completed in 1976, the structure is 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life.
At 40 feet, this dam is taller than 87% of dams nationwide.
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Location
| State | Florida |
| County | Polk |
| Nearest City | Bowling Green |
| River/Stream | Whidden Creek |
| Coordinates | 27.72000, -81.88000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 40 ft |
| Dam Height | 40 ft |
| Dam Length | 28,000 ft |
| Year Completed | 1976 (50 years old) |
Storage & Hydraulics
| NID Storage | 10,400 acre-ft |
| Max Storage | 10,400 acre-ft |
| Normal Storage | 10,400 acre-ft |
| Surface Area | 260 acres |
Ownership & Safety
| Purpose | Tailings |
| Owner | THE MOSAIC COMPANY |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | No |
Identifiers
| NID ID | FL00620 |
| Federal ID | FL00620 |
| More Info | State Dam Safety Program |