Mulberry (10) Reservoir Report

Last Updated: December 5, 2025

Mulberry (10) is a private earth dam located in Polk County, Florida, specifically in the city of Mulberry.


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Summary

It is situated on the North Prong Alafia River and serves the primary purpose of tailings containment. The dam has a height of 100 feet, a hydraulic height of 95 feet, and a structural height of 105 feet, with a storage capacity of 128 acre-feet.

With a surface area of 6 acres and a drainage area of 0.01 square miles, Mulberry (10) is regulated by the state of Florida and is equipped with a controlled spillway that is 64 feet wide. The dam has a significant hazard potential and is classified as having a very high risk level. Despite not having a condition assessment rating, it is important to note that the dam has not been inspected recently, indicating a potential need for evaluation and maintenance to ensure its safety and functionality.

For water resource and climate enthusiasts, Mulberry (10) presents an intriguing case study in dam infrastructure management and risk assessment. With its location in a high-risk area and its critical role in tailings containment, understanding the condition and maintenance needs of this dam is crucial for ensuring the safety of the surrounding community and the protection of water resources in the region.

Dam Length

2112

Dam Height

100

River Or Stream

NORTH PRONG ALAFIA RIVER

Primary Dam Type

Earth

Surface Area

6

Hydraulic Height

95

Drainage Area

0.01

Nid Storage

128

Structural Height

105

Hazard Potential

Significant

Nid Height

105
       
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.