Watson Sa No 11 Phase 2

Watson Sa No 11 Phase 2 is an earth dam located in Polk County, Florida, built in 1974. It carries a Low hazard potential classification.

About Watson Sa No 11 Phase 2

The primary purpose of Watson Sa No 11 Phase 2 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 Bowlegs Creek near Fort Meade.

The dam stands 45 feet tall and stretches 6,500 feet across, creates a reservoir covering 62 acres, and has a maximum storage capacity of 2,808 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 45 feet, this dam is taller than 91% of dams nationwide.

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Low HazardNot Rated ConditionEmergency Action Plan: No

Location

StateFlorida
CountyPolk
Nearest CityFort Meade
River/StreamBowlegs Creek
Coordinates27.71000, -81.75000

Physical Characteristics

Dam TypeEarth
NID Height45 ft
Dam Height45 ft
Dam Length6,500 ft
Year Completed1974 (52 years old)

Storage & Hydraulics

NID Storage2,808 acre-ft
Max Storage2,808 acre-ft
Normal Storage2,808 acre-ft
Surface Area62 acres
Max Discharge18 cfs

Ownership & Safety

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

Identifiers

NID IDFL00250
Federal IDFL00250
More InfoState Dam Safety Program

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