Lake June Dam Reservoir Report

Last Updated: December 5, 2025

Lake June Dam, located in Dallas, Texas, stands as a vital structure along Prairie Creek, serving primarily for recreational purposes since its completion in 1949.


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Summary

This private-owned earth dam, with a structural height of 17 feet and a length of 388 feet, holds a maximum storage capacity of 337 acre-feet. Despite being uncontrolled, it boasts an efficient spillway with a width of 140 feet to manage potential flooding events, with three outlet gates aiding in water discharge.

Maintained and regulated by the Texas Commission on Environmental Quality (TCEQ), Lake June Dam undergoes regular inspections to ensure its structural integrity and operational efficiency. The dam's hazard potential is currently labeled as "Not Available," while its overall risk assessment indicates a moderate level. Despite lacking specific data on condition assessment and emergency action plans, the dam remains a key asset in the region's water resource management, providing both recreational opportunities and vital flood control measures.

With its strategic location in Dallas and the support of local authorities, Lake June Dam continues to play a crucial role in water resource management and climate resilience efforts. As a significant structure along Prairie Creek, it not only offers recreational benefits to the community but also serves as a safeguard against potential flooding events. As such, the dam's consistent monitoring and maintenance ensure its continued effectiveness in water management and environmental protection for the region.

Year Completed

1949

Dam Length

388

Dam Height

17

River Or Stream

PRAIRIE CREEK

Primary Dam Type

Earth

Hydraulic Height

17

Nid Storage

337

Structural Height

17

Outlet Gates

Uncontrolled - 3

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

17
       
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.