Big Four Mine Bf-1
Low HazardNot Rated ConditionEmergency Action Plan: No
Location
| State | Florida |
| County | Hillsborough |
| Nearest City | FISH HAWK |
| River/Stream | LAKE BRANCH ALAFIA RIVER |
| Coordinates | 27.75000, -82.08000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 40 ft |
| Dam Height | 40 ft |
| Dam Length | 21,120 ft |
| Year Completed | 1977 (49 years old) |
Storage & Hydraulics
| NID Storage | 18,000 acre-ft |
| Max Storage | 18,000 acre-ft |
| Normal Storage | 15,700 acre-ft |
| Surface Area | 450 acres |
Ownership & Safety
| Purpose | Tailings |
| Owner | THE MOSAIC COMPANY |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | No |