South Hopewell Eleanor Area is an earth dam located in Hillsborough, Florida, built in 1950. It carries a Low hazard potential classification.
Dam profile
NID height · 20 ft20 ft tall and 3,800 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 Hopewell Eleanor Area
The primary purpose of South Hopewell Eleanor Area 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 South Prong Alafia River near Fish Hawk.
The dam stands 20 feet tall and stretches 3,800 feet across, creates a reservoir covering 572 acres, and has a maximum storage capacity of 311 acre-feet. Completed in 1950, the structure is well-established, with more than 75 years of service.
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.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Florida |
| County | Hillsborough |
| Nearest City | Fish Hawk |
| River/Stream | South Prong Alafia River |
| Coordinates | 27.85000, -82.11000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 3,800 ft |
| Year Completed | 1950 (76 years old) |
Storage & Hydraulics
| NID Storage | 311 acre-ft |
| Max Storage | 311 acre-ft |
| Normal Storage | 311 acre-ft |
| Surface Area | 572 acres |
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 | FL00177 |
| Federal ID | FL00177 |
| More Info | State Dam Safety Program |