Usac Gypstack Nw Cell

UNNAMED POND· Polk, Florida· Built 1962· Earth· 80 ft tall
Significant Hazard Tailings Private

Key Takeaway

Usac Gypstack Nw Cell is classified as significant hazard in Florida. It was completed in 1962 and is 64 years old. Its primary use is tailings. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 80 ft (taller than 92.9% in FL)
Dam Length7,320 ft
Dam TypeEarth
Max Storage2.5K acre-ft
Normal Storage2.2K acre-ft
Surface Area59 acres
Drainage Area0 sq mi
Max Discharge64 cfs
Year Completed1962 (64 years old)
Year Modified2003
NID IDFL00224

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: September 7, 2005
State Regulated: Yes
Regulatory Agency: FDEP

Ownership

THE MOSAIC COMPANY

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Usac Gypstack Nw Cell?

Usac Gypstack Nw Cell 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 Usac Gypstack Nw Cell?

Usac Gypstack Nw Cell is owned by THE MOSAIC COMPANY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Usac Gypstack Nw Cell built?

Usac Gypstack Nw Cell was completed in 1962, making it 64 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 Usac Gypstack Nw Cell?

Usac Gypstack Nw Cell 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 Usac Gypstack Nw Cell?

Usac Gypstack Nw Cell has a dam height of 80 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 Usac Gypstack Nw Cell last inspected?

Usac Gypstack Nw Cell was last inspected on September 7, 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.