Control Structure 3 Reservoir Report

Last Updated: December 5, 2025

Control Structure 3, also known as Michaels Dam, is a vital flood risk reduction infrastructure located in Orange County, Florida.


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Summary

Completed in 1965, this earth dam stands at a towering height of 26 feet and spans 1100 feet in length. With a maximum discharge capacity of 20,440 cubic feet per second, Control Structure 3 plays a crucial role in managing water levels along the Little Econlockhatchee River.

Owned and regulated by the local government, Control Structure 3 is designed to withstand high hazard potential events while maintaining a satisfactory condition assessment. Its primary purpose is flood risk reduction, with a normal storage capacity of 117 acre-feet and a maximum storage of 1,929 acre-feet. Despite its age, this essential structure continues to be inspected and maintained regularly to ensure its effectiveness in protecting the surrounding areas, including the city of Orlando.

With its strategic location and significant impact on water management in the region, Control Structure 3 serves as a critical piece of infrastructure in the fight against flooding and climate-related challenges in Orange County, Florida. Its impressive design, operational efficiency, and regulatory compliance make it a key player in safeguarding communities and ecosystems along the Little Econlockhatchee River.

Year Completed

1965

Dam Length

1100

Dam Height

26

River Or Stream

LITTLE ECONLOCKHATCHEE

Primary Dam Type

Earth

Surface Area

48

Hydraulic Height

26

Nid Storage

1929

Structural Height

16

Hazard Potential

High

Nid Height

26
       
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.