Fgh4 Fort Green Mine

Fgh4 Fort Green Mine is an earth dam located in Hardee County, Florida, built in 2002. It carries a Significant hazard potential classification.

About Fgh4 Fort Green Mine

The primary purpose of Fgh4 Fort Green Mine 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 Peace River near Ona.

The dam stands 53 feet tall and stretches 17,680 feet across, creates a reservoir covering 508 acres, has a maximum storage capacity of 25,000 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2002, the structure is relatively new.

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. An emergency action plan is in place for this dam. The most recent inspection on record was 01/23/2006. That was over 20 years ago.

At 53 feet, this dam is taller than 94% of dams nationwide.

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Significant HazardNot Rated ConditionEmergency Action Plan: Yes

Location

StateFlorida
CountyHardee
Nearest CityOna
River/StreamPeace River
Coordinates27.55840, -82.04510

Physical Characteristics

Dam TypeEarth
NID Height53 ft
Dam Height50 ft
Dam Length17,680 ft
Year Completed2002 (24 years old)

Storage & Hydraulics

NID Storage25,000 acre-ft
Max Storage25,000 acre-ft
Normal Storage22,860 acre-ft
Surface Area508 acres
Drainage Area0 sq mi
Max Discharge80 cfs
Spillway TypeControlled

Ownership & Safety

PurposeTailings
OwnerTHE MOSAIC COMPANY
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentNot Rated
Last Inspection01/23/2006
Emergency Action PlanYes

Identifiers

NID IDFL11079
Federal IDFL11079
More InfoState Dam Safety Program

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