Kingsford K-3

Kingsford K-3 is an earth dam located in Polk County, Florida, built in 1977. It carries a Significant hazard potential classification.

About Kingsford K-3

The primary purpose of Kingsford K-3 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 Mizelle Creek near Bradley.

The dam stands 50 feet tall and stretches 9,100 feet across, creates a reservoir covering 260 acres, and has a maximum storage capacity of 13,000 acre-feet. Completed in 1977, the structure is 49 years old.

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.

At 50 feet, this dam is taller than 93% of dams nationwide.

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Significant HazardNot Rated ConditionEmergency Action Plan: No

Location

StateFlorida
CountyPolk
Nearest CityBradley
River/StreamMizelle Creek
Coordinates27.80000, -82.01000

Physical Characteristics

Dam TypeEarth
NID Height50 ft
Dam Height50 ft
Dam Length9,100 ft
Year Completed1977 (49 years old)

Storage & Hydraulics

NID Storage13,000 acre-ft
Max Storage13,000 acre-ft
Normal Storage12,700 acre-ft
Surface Area260 acres
Max Discharge120 cfs

Ownership & Safety

PurposeTailings
OwnerTHE MOSAIC COMPANY
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentNot Rated
Emergency Action PlanNo

Identifiers

NID IDFL00644
Federal IDFL00644
More InfoState Dam Safety Program

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