Lake Athens Dam Reservoir Report

Last Updated: December 5, 2025

Lake Athens Dam, located in Henderson, Texas, serves as a vital water resource for the area, providing both recreational opportunities and water supply.


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Summary

Built in 1963 by designers VELVIN & WEEKS, the dam stands at a height of 57 feet and has a structural height of 59 feet. With a storage capacity of 56,816 acre-feet, the dam helps control the flow of Flat Creek and has a surface area of 1,471 acres.

The dam features an uncontrolled spillway with a width of 306 feet and is inspected regularly by the Texas Commission on Environmental Quality (TCEQ) to ensure its structural integrity. In 2017, the dam was reported to be in fair condition, with inspections scheduled every 5 years. In case of emergencies, the dam has two uncontrolled and one valve outlet gates.

Despite its moderate risk assessment, Lake Athens Dam continues to play a crucial role in the region's water management and offers a picturesque setting for outdoor enthusiasts and climate enthusiasts alike. With its rich history and ongoing maintenance, the dam stands as a testament to the importance of sustainable water resource management in the face of changing climate patterns.

Years Modified

2012 - Other, 2017 - Other

Year Completed

1963

Dam Length

3000

Dam Height

57

River Or Stream

FLAT CREEK

Surface Area

1471

Hydraulic Height

57

Drainage Area

21.5

Nid Storage

56816

Structural Height

59

Outlet Gates

Uncontrolled - 2, Valve - 1

Hazard Potential

Not Available

Foundations

Soil

Nid Height

59
       
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.