P-6 Reservoir Report

Last Updated: December 5, 2025

P-6, also known as Lake Smart, is a state-owned dam in Polk, Florida, with a primary purpose of flood risk reduction.


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Summary

Built in 1965, this dam has a height of 22 feet and a maximum storage capacity of 21,294 acre-feet, providing vital protection against potential flooding in the area. The dam is situated on the P6 Canal, within the jurisdiction of the SWFWMD, and is regulated, permitted, inspected, and enforced by the state.

Despite its age, P-6 remains a significant structure with a hazard potential deemed as "significant" and a high risk assessment rating of 2. The dam has not been rated for its condition, but it is crucial for the safety and well-being of the surrounding community. With a maximum discharge of 150 cubic feet per second and a drainage area of 17.9 square miles, P-6 plays a key role in managing water resources and mitigating flood risks in the region. While there have been no recent inspections since 1999, the dam continues to serve its purpose effectively.

Year Completed

1965

Dam Length

46

Dam Height

9.2

River Or Stream

P6 CANAL

Primary Dam Type

Other

Surface Area

1820

Hydraulic Height

11.7

Drainage Area

17.9

Nid Storage

21294

Structural Height

22

Hazard Potential

Significant

Nid Height

22
       
Seasonal Comparison

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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.