Bl-06-n

Bl-06-n is an earth dam located in Polk County, Florida, built in 1995. It carries a Significant hazard potential classification.

About Bl-06-n

The primary purpose of Bl-06-n 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 Bartow.

The dam stands 17 feet tall and stretches 5,092 feet across, creates a reservoir covering 39 acres, has a maximum storage capacity of 450 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1995, the structure is 31 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. An emergency action plan is in place for this dam. The most recent inspection on record was 01/20/2006. That was over 20 years ago.

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Significant HazardNot Rated ConditionEmergency Action Plan: Yes

Location

StateFlorida
CountyPolk
Nearest CityBartow
River/StreamAlafia River
Coordinates27.92370, -81.92650

Physical Characteristics

Dam TypeEarth
NID Height17 ft
Dam Height15 ft
Dam Length5,092 ft
Year Completed1995 (31 years old)

Storage & Hydraulics

NID Storage450 acre-ft
Max Storage450 acre-ft
Normal Storage400 acre-ft
Surface Area39 acres
Drainage Area0 sq mi
Max Discharge10 cfs
Spillway TypeUncontrolled

Ownership & Safety

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

Identifiers

NID IDFL11031
Federal IDFL11031
More InfoState Dam Safety Program

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