South Ridgewood/clark James Dam is an earth dam located in Polk County, Florida, built in 1969. It carries a Low hazard potential classification.
Dam profile
NID height · 20 ft20 ft tall and 42,080 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 South Ridgewood/clark James Dam
The primary purpose of South Ridgewood/clark James Dam 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 Bartow.
The dam stands 20 feet tall and stretches 42,080 feet across, creates a reservoir covering 176 acres, and has a maximum storage capacity of 10,800 acre-feet. Completed in 1969, 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.
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Location
| State | Florida |
| County | Polk |
| Nearest City | Bartow |
| River/Stream | Unnamed Pond |
| Coordinates | 27.88000, -81.90000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 42,080 ft |
| Year Completed | 1969 (57 years old) |
Storage & Hydraulics
| NID Storage | 10,800 acre-ft |
| Max Storage | 10,800 acre-ft |
| Normal Storage | 10,800 acre-ft |
| Surface Area | 176 acres |
| Max Discharge | 250 cfs |
Ownership & Safety
| Purpose | Tailings |
| Owner | The Mosaic Company |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | No |
Identifiers
| NID ID | FL00194 |
| Federal ID | FL00194 |
| More Info | State Dam Safety Program |