Gypsum Field Dike
Gypsum Field Dike is an earth dam located in Hillsborough, Florida, built in 1974. It carries a Low hazard potential classification.
About Gypsum Field Dike
The primary purpose of Gypsum Field Dike 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 Gardinier Inc (private). It impounds the Unnamed Pond near Gibsonton.
The dam stands 100 feet tall and stretches 12,050 feet across, creates a reservoir covering 28 acres, and has a maximum storage capacity of 200 acre-feet. Completed in 1974, 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 100 feet, this dam is taller than 98% of all dams in the United States.
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 | Gibsonton |
| River/Stream | Unnamed Pond |
| Coordinates | 27.87000, -82.39000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 100 ft |
| Dam Height | 100 ft |
| Dam Length | 12,050 ft |
| Year Completed | 1974 (52 years old) |
Storage & Hydraulics
| NID Storage | 200 acre-ft |
| Max Storage | 200 acre-ft |
| Normal Storage | 130 acre-ft |
| Surface Area | 28 acres |
| Max Discharge | 240 cfs |
Ownership & Safety
| Purpose | Tailings |
| Owner | GARDINIER INC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | No |
Identifiers
| NID ID | FL00174 |
| Federal ID | FL00174 |
| More Info | State Dam Safety Program |