Wrg-Bl-010 Reservoir Report

Last Updated: December 5, 2025

Wrg-Bl-010, a private dam located in Polk County, Florida, was completed in 1922 for the primary purpose of storing tailings.


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Summary

This earth dam, with a height of 30 feet and a length of 18,504 feet, holds a maximum storage capacity of 12,500 acre-feet and covers a surface area of 461 acres. The dam is regulated by the Florida Department of Environmental Protection (FDEP) and is inspected, permitted, and enforced by the state.

With a significant hazard potential and a very high risk assessment rating, Wrg-Bl-010 is considered to be a critical structure in terms of water resource management and climate resilience. The dam's spillway type is controlled, with a spillway width of 22 feet, allowing for a maximum discharge of 40 cubic feet per second. Despite not having a condition assessment rating, the dam is actively monitored by state authorities to ensure its safety and integrity.

Located on the Alafia River, Wrg-Bl-010 plays a crucial role in flood control and water storage within the region. As an essential piece of infrastructure, the dam's functionality and maintenance are vital in mitigating potential risks and protecting downstream communities from flooding events. Climate enthusiasts and water resource professionals alike should closely monitor the ongoing management and upkeep of Wrg-Bl-010 to ensure its continued effectiveness in safeguarding the surrounding environment.

Year Completed

1922

Dam Length

18504

Dam Height

30

River Or Stream

ALAFIA RIVER

Primary Dam Type

Earth

Surface Area

461

Hydraulic Height

25

Drainage Area

0.72

Nid Storage

12500

Structural Height

33

Hazard Potential

Significant

Foundations

Soil

Nid Height

33
       
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.