Kingsford O South

Kingsford O South is an earth dam located in Polk County, Florida, built in 1969. It carries a Low hazard potential classification.

About Kingsford O South

The primary purpose of Kingsford O South 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 Alafia River near Keysville.

The dam stands 17 feet tall and stretches 8,575 feet across, creates a reservoir covering 70 acres, has a maximum storage capacity of 800 acre-feet, and collects water from a drainage area of 0 square miles. 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. The most recent inspection on record was 01/20/2006. That was over 20 years ago.

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Low HazardNot Rated ConditionEmergency Action Plan: No

Location

StateFlorida
CountyPolk
Nearest CityKeysville
River/StreamAlafia River
Coordinates27.76560, -82.00170

Physical Characteristics

Dam TypeEarth
NID Height17 ft
Dam Height15 ft
Dam Length8,575 ft
Year Completed1969 (57 years old)

Storage & Hydraulics

NID Storage800 acre-ft
Max Storage800 acre-ft
Normal Storage700 acre-ft
Surface Area70 acres
Drainage Area0 sq mi
Max Discharge6 cfs
Spillway TypeControlled

Ownership & Safety

PurposeTailings
OwnerTHE MOSAIC COMPANY
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection01/20/2006
Emergency Action PlanNo

Identifiers

NID IDFL13339
Federal IDFL13339
More InfoState Dam Safety Program

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