Tanque Noche Triste Tank Dam Reservoir Report

Last Updated: December 5, 2025

Tanque Noche Triste Tank Dam, located in La Salle, Texas, was completed in 1969 with a primary purpose of water supply.


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Summary

This privately owned Earth dam stands at a height of 13 feet and spans a length of 1330 feet, providing a storage capacity of 140 acre-feet. Despite being unregulated by the state and lacking a spillway, this dam serves as a crucial resource for water management in the region, especially during times of drought.

The dam, situated on the TR-Green Branch stream, is managed by private owners and has not undergone a formal condition assessment. While its hazard potential is not available, it presents a high risk level of 2. With no associated structures and limited information on its design and construction, Tanque Noche Triste Tank Dam remains a valuable asset for water supply in the area. However, given its age and lack of regulatory oversight, there may be potential risks associated with its continued operation that need to be carefully monitored and managed.

As water resource and climate enthusiasts, it is crucial to recognize the importance of dams like Tanque Noche Triste Tank Dam in sustaining water supply in drought-prone regions. Understanding the risks and management measures associated with such structures is essential for ensuring the safety and reliability of our water resources in the face of a changing climate. By staying informed and advocating for responsible dam management practices, we can help safeguard our water supply for future generations.

Year Completed

1969

Dam Length

1330

Dam Height

13

River Or Stream

TR-GREEN BRANCH

Primary Dam Type

Earth

Hydraulic Height

13

Nid Storage

140

Structural Height

13

Outlet Gates

None - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

13
       
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.