Kingsford K-4 Reservoir Report

Last Updated: December 5, 2025

Located in Polk County, Florida, Kingsford K-4 is a privately owned earth dam with a primary purpose of tailings management.


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Summary

Completed in 1975, this dam has a height of 20 feet and a length of 13,200 feet, providing a storage capacity of 3,900 acre-feet. With a surface area of 195 acres and a maximum discharge of 510 cubic feet per second, Kingsford K-4 plays a crucial role in managing water resources in the region.

Managed by the Jacksonville District of the US Army Corps of Engineers, Kingsford K-4 is regulated and permitted by the state of Florida for inspection, enforcement, and permitting. The dam's significant hazard potential underscores the importance of regular monitoring and maintenance to ensure public safety and environmental protection. While its condition is currently not rated, ongoing assessments and emergency preparedness measures are necessary to mitigate risks and ensure the dam's resilience in the face of changing climate conditions.

As a key feature along the Alafia River, Kingsford K-4 serves as a vital infrastructure for water management and flood control in the area. Its strategic location and design highlight the intersection of water resource management and climate resilience, making it a significant asset for both the local community and the broader ecosystem. With its history and functionality, Kingsford K-4 embodies the importance of sustainable water infrastructure in adapting to the challenges of a changing climate.

Year Completed

1975

Dam Length

13200

Dam Height

20

River Or Stream

ALAFIA RIVER

Primary Dam Type

Earth

Surface Area

195

Hydraulic Height

20

Nid Storage

3900

Structural Height

15

Hazard Potential

Significant

Nid Height

20
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.