Rockland Mine S-1
Rockland Mine S-1 is an earth dam located in Polk County, Florida, built in 1967. It carries a Low hazard potential classification.
About Rockland Mine S-1
The primary purpose of Rockland Mine S-1 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 Unnamed Pond near Fort Meade.
The dam stands 40 feet tall and stretches 12,019 feet across, creates a reservoir covering 92 acres, and has a maximum storage capacity of 7,980 acre-feet. Completed in 1967, the structure is well into its service life at over 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.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Florida |
| County | Polk |
| Nearest City | Fort Meade |
| River/Stream | Unnamed Pond |
| Coordinates | 27.74000, -81.86000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 40 ft |
| Dam Height | 40 ft |
| Dam Length | 12,019 ft |
| Year Completed | 1967 (59 years old) |
Storage & Hydraulics
| NID Storage | 7,980 acre-ft |
| Max Storage | 7,980 acre-ft |
| Normal Storage | 7,980 acre-ft |
| Surface Area | 92 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 | FL00226 |
| Federal ID | FL00226 |
| More Info | State Dam Safety Program |