Duval County Ranch Conchola Tank Dam Reservoir Report

Last Updated: December 5, 2025

The Duval County Ranch Conchola Tank Dam, located in Duval County, Texas, was completed in 1969 for the primary purpose of water supply.


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Summary

This private-owned earth dam with a buttress core stands at a height of 12 feet and stretches for 1200 feet, providing a storage capacity of 480 acre-feet. Despite its age, the dam has not been rated for condition assessment, and its hazard potential is not available. The risk assessment for this dam is considered high, highlighting the importance of regular inspections and maintenance to ensure its safety and functionality.

Situated on the TR-SOLEDAD CREEK, the Duval County Ranch Conchola Tank Dam does not have a spillway and is not regulated by the state. With no associated structures and limited information on its current condition, the dam poses a potential risk to the surrounding area in the event of failure. Although it meets the guidelines for emergency action plans, there is no available data on the preparedness and mitigation measures in place. Water resource and climate enthusiasts should closely monitor developments regarding this dam to ensure the safety of the community and the sustainability of its water supply.

As one of the essential water supply structures in Duval County, Texas, the Duval County Ranch Conchola Tank Dam plays a crucial role in maintaining the region's water resources. With a storage capacity of 480 acre-feet and a normal storage level of 62 acre-feet, the dam serves as a vital source of water for the local area. However, the lack of regular inspections and condition assessments raises concerns about the dam's long-term safety and reliability. Efforts should be made to prioritize the maintenance and upkeep of this dam to mitigate potential risks and ensure a sustainable water supply for the community.

Year Completed

1969

Dam Length

1200

Dam Height

12

River Or Stream

TR-SOLEDAD CREEK

Primary Dam Type

Earth

Surface Area

22

Hydraulic Height

12

Nid Storage

480

Structural Height

12

Outlet Gates

None - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

12
       
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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.