Usac Gypstack Nw Cell Reservoir Report
Nearby: Rockland Mine S-4 Rockland Mine S-1
Last Updated: December 5, 2025
The Usac Gypstack Nw Cell is a private tailings dam located in Polk, Florida, near the city of Fort Meade.
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Summary
Built in 1962, this earth dam stands at a height of 80 feet and has a hydraulic height of 75 feet. With a storage capacity of 2500 acre-feet and a surface area of 59 acres, this dam serves the primary purpose of storing tailings.
Owned and regulated by the state of Florida, the Usac Gypstack Nw Cell is inspected, permitted, and enforced by the Florida Department of Environmental Protection. The dam has a significant hazard potential and its condition assessment is currently not rated. The last inspection was conducted in September 2005, with no information available on the emergency action plan or risk assessment measures in place.
Situated in the Jacksonville District, this dam poses a potential risk to the surrounding area in case of failure, highlighting the importance of regular inspections and maintenance to ensure the safety of both the structure and the environment. For water resource and climate enthusiasts, understanding the intricacies of dams like the Usac Gypstack Nw Cell is crucial for managing water resources and addressing climate change challenges.
Year Completed |
1962 |
Dam Length |
7320 |
Dam Height |
80 |
River Or Stream |
UNNAMED POND |
Primary Dam Type |
Earth |
Surface Area |
59 |
Hydraulic Height |
75 |
Drainage Area |
0.1 |
Nid Storage |
2500 |
Structural Height |
85 |
Hazard Potential |
Significant |
Foundations |
Soil |
Nid Height |
85 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Usac Gypstack Nw Cell