Lake Leon Dam Reservoir Report

Last Updated: December 5, 2025

Lake Leon Dam, located in Eastland, Texas, is a vital structure regulating the flow of the Leon River.


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Summary

Built in 1954, this earth dam stands at a height of 90 feet, with a length of 3700 feet, providing a storage capacity of 72,250 acre-feet and covering a surface area of 1590 acres. The dam serves multiple purposes including recreation, water supply, and others, making it a crucial resource for the local community.

Managed by the local government and regulated by the Texas Commission on Environmental Quality (TCEQ), Lake Leon Dam has undergone structural modifications in the 1800s and 1987 to enhance its efficiency and safety. The dam features an uncontrolled spillway with a width of 1211 feet, and two uncontrolled and one other controlled outlet gates. Despite being classified as having moderate risk, Lake Leon Dam has not been rated for condition assessment, emphasizing the need for ongoing monitoring and maintenance to ensure its continued reliability and safety for the surrounding area.

With a maximum discharge capacity of 170,328 cubic feet per second, Lake Leon Dam plays a crucial role in managing water flow and storage in the region. The dam's strategic location and design highlight its significance in water resource management and climate resilience efforts, making it a key asset for water enthusiasts and climate advocates invested in sustainable water infrastructure.

Years Modified

1800 - Structural, 1987 - Structural

Year Completed

1954

Dam Length

3700

Dam Height

90

River Or Stream

LEON RIVER

Primary Dam Type

Earth

Surface Area

1590

Hydraulic Height

90

Drainage Area

252

Nid Storage

72250

Structural Height

90

Outlet Gates

Other Controlled - 1, Uncontrolled - 2

Hazard Potential

Not Available

Foundations

Soil

Nid Height

90
       
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.