Area D
Area D is an earth dam located in Polk County, Florida, built in 1971. It carries a Low hazard potential classification.
About Area D
The primary purpose of Area D 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 Brewster.
The dam stands 42 feet tall and stretches 9,010 feet across, creates a reservoir covering 449 acres, and has a maximum storage capacity of 11,530 acre-feet. Completed in 1971, 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 42 feet, this dam is taller than 89% 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 | Brewster |
| River/Stream | Unnamed Pond |
| Coordinates | 27.71000, -82.01000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 42 ft |
| Dam Height | 42 ft |
| Dam Length | 9,010 ft |
| Year Completed | 1971 (55 years old) |
Storage & Hydraulics
| NID Storage | 11,530 acre-ft |
| Max Storage | 11,530 acre-ft |
| Normal Storage | 11,530 acre-ft |
| Surface Area | 449 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 | FL00235 |
| Federal ID | FL00235 |
| More Info | State Dam Safety Program |