Mosaic Csa F5

LONG BRANCH· Hillsborough, Florida· Built 2005· Earth· 60 ft tall
Significant Hazard Tailings Private

Key Takeaway

Mosaic Csa F5 is classified as significant hazard in Florida. It was completed in 2005 and is 21 years old. Its primary use is tailings. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 60 ft (taller than 91% in FL)
Dam Length14,750 ft
Dam TypeEarth
Max Storage37.1K acre-ft
Normal Storage35.2K acre-ft
Surface Area640 acres
Drainage Area1 sq mi
Max Discharge640 cfs
Year Completed2005 (21 years old)
NID IDFL11023

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: July 20, 2005
State Regulated: Yes
Regulatory Agency: FDEP

Ownership

THE MOSAIC COMPANY

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Mosaic Csa F5?

Mosaic Csa F5 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 Mosaic Csa F5?

Mosaic Csa F5 is owned by THE MOSAIC COMPANY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Mosaic Csa F5 built?

Mosaic Csa F5 was completed in 2005, making it 21 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 Mosaic Csa F5?

Mosaic Csa F5 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 Mosaic Csa F5?

Mosaic Csa F5 has a dam height of 60 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 Mosaic Csa F5 last inspected?

Mosaic Csa F5 was last inspected on July 20, 2005. 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.