Fred Martin East Tank Dam Reservoir Report

Last Updated: December 5, 2025

Fred Martin East Tank Dam, located in Stonewall County, Texas, is a private-owned structure completed in 1965 primarily for water supply purposes.


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Summary

The dam, standing at 19 feet tall and measuring 866 feet in length, holds a storage capacity of 212 acre-feet, with a normal storage level of 80 acre-feet. Situated on the TR-DOUBLE MTN FORK BRAZOS RIV, the dam serves as a vital resource for water management in the region.

Although the dam does not feature a spillway, it is equipped with one outlet gate to regulate water flow. Despite being in operation for over five decades, the dam's condition assessment remains unrated, and its hazard potential is marked as "Not Available." With a high risk assessment rating of 2, there is a pressing need for comprehensive risk management measures to ensure the structural integrity and safety of the Fred Martin East Tank Dam for the surrounding communities and water resources.

As water resource and climate enthusiasts continue to monitor and assess the impacts of climate change on dam infrastructure, the Fred Martin East Tank Dam stands as a crucial component in the water supply system of Stonewall County, Texas. With its strategic location and significant storage capacity, the dam plays a pivotal role in water management and conservation efforts in the region. It is imperative that ongoing inspections, maintenance, and risk mitigation strategies are implemented to safeguard the dam's functionality and resilience in the face of evolving environmental challenges.

Year Completed

1965

Dam Length

866

Dam Height

19

River Or Stream

TR-DOUBLE MTN FORK BRAZOS RIV

Primary Dam Type

Earth

Surface Area

16

Hydraulic Height

19

Nid Storage

212

Structural Height

19

Outlet Gates

None - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

19
       
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.