Wrg-Bl-010

ALAFIA RIVER· Polk, Florida· Built 1922· Earth· 30 ft tall
Significant Hazard Tailings Private

Key Takeaway

Wrg-Bl-010 is classified as significant hazard in Florida. It was completed in 1922 and is 104 years old. Its primary use is tailings. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 30 ft (taller than 71.1% in FL)
Dam Length18,504 ft
Dam TypeEarth
Max Storage12.5K acre-ft
Normal Storage11.5K acre-ft
Surface Area461 acres
Drainage Area1 sq mi
Max Discharge40 cfs
Year Completed1922 (104 years old)
NID IDFL11035

Safety Information

Significant Hazard

No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: Yes
Last Inspection: January 20, 2006
State Regulated: Yes
Regulatory Agency: FDEP

Ownership

THE MOSAIC COMPANY

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Wrg-Bl-010?

Wrg-Bl-010 is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Wrg-Bl-010?

Wrg-Bl-010 is owned by THE MOSAIC COMPANY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Wrg-Bl-010 built?

Wrg-Bl-010 was completed in 1922, making it 104 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.

What is the primary purpose of Wrg-Bl-010?

Wrg-Bl-010 serves the following purposes: Tailings. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Wrg-Bl-010?

Wrg-Bl-010 has a dam height of 30 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.

When was Wrg-Bl-010 last inspected?

Wrg-Bl-010 was last inspected on January 20, 2006. Inspection dates indicate when a formal review occurred, not the results of that inspection.

Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.