Greenes Lake Dam Reservoir Report

Last Updated: December 5, 2025

Greenes Lake Dam, located in Wills Point, Texas, is a private earth dam completed in 1938 for the primary purposes of fire protection, stock, and small fish pond creation.


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Summary

With a height of 21 feet and a length of 706 feet, the dam holds a maximum storage capacity of 345 acre-feet and a normal storage capacity of 192 acre-feet. The dam is situated on Spring Branch, within the Fort Worth District, and is monitored and maintained by the state of Texas.

Despite being unregulated by the state, Greenes Lake Dam underwent modifications in 1999 and features an uncontrolled spillway with a width of 23 feet. The dam poses a moderate risk, with a hazard potential not available and a condition assessment that is not rated. The structure is equipped with two uncontrolled outlet gates, and the last inspection was conducted in June 2008. While there are no emergency action plans or inundation maps prepared for the dam, it remains a significant water resource for the surrounding area and a potential site for recreational activities.

Years Modified

1999 - Other

Year Completed

1938

Dam Length

706

Dam Height

21

River Or Stream

SPRING BRANCH

Primary Dam Type

Earth

Surface Area

30

Hydraulic Height

21

Drainage Area

1.21

Nid Storage

345

Structural Height

21

Outlet Gates

Uncontrolled - 2

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

21
       
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.