King Tank Dam Reservoir Report

Last Updated: December 7, 2025

King Tank Dam, located in Maverick County, Texas, stands as a testament to water resource management and climate adaptation efforts.


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Summary

Built in 1963, this private-owned Earth dam on TR-ELM Creek serves various purposes, including flood control and water storage. With a height of 28 feet and a length of 2640 feet, the dam has a storage capacity of 3203 acre-feet, providing vital water resources to the surrounding area.

Despite its importance, the dam's condition is marked as unsatisfactory, with a recent assessment in April 2021 indicating room for improvement. The Texas Commission on Environmental Quality (TCEQ) oversees the regulation, inspection, and enforcement of the dam, ensuring its safety and functionality. The dam has undergone modifications, including hydraulic upgrades in 1996, to enhance its performance and resilience in the face of changing climatic conditions.

While the dam poses a moderate risk, with an unspecified hazard potential, it remains a critical infrastructure for the community. Through continued monitoring, maintenance, and risk management measures, King Tank Dam stands as a vital asset in safeguarding against floods, ensuring water security, and adapting to the challenges posed by a changing climate.

Years Modified

1996 - Hydraulic

Year Completed

1963

Dam Length

2640

Dam Height

28

River Or Stream

TR-ELM CREEK

Primary Dam Type

Earth

Surface Area

150

Hydraulic Height

28

Drainage Area

6.32

Nid Storage

3203

Structural Height

28

Outlet Gates

Uncontrolled - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

28
       
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.