Fort Green Fg-2 is an earth dam located in Polk County, Florida, built in 1977. It carries a Significant hazard potential classification.
Dam profile
NID height · 23 ft23 ft tall and 13,730 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 Fort Green Fg-2
The primary purpose of Fort Green Fg-2 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 Payne Creek near Fort Green.
The dam stands 23 feet tall and stretches 13,730 feet across, creates a reservoir covering 528 acres, and has a maximum storage capacity of 12,144 acre-feet. Completed in 1977, the structure is 49 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 | Fort Green |
| River/Stream | Payne Creek |
| Coordinates | 27.69000, -82.01000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 23 ft |
| Dam Height | 23 ft |
| Dam Length | 13,730 ft |
| Year Completed | 1977 (49 years old) |
Storage & Hydraulics
| NID Storage | 12,144 acre-ft |
| Max Storage | 12,144 acre-ft |
| Normal Storage | 12,144 acre-ft |
| Surface Area | 528 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 | FL00571 |
| Federal ID | FL00571 |
| More Info | State Dam Safety Program |