Lauro Garza Lake No 1 Dam Reservoir Report

Last Updated: December 19, 2025

Lauro Garza Lake No 1 Dam, located in Zapata, Texas, was completed in 1967 for the primary purpose of water supply.


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Summary

This earth dam with a buttress core type stands at a height of 16 feet and spans a length of 990 feet, with a maximum storage capacity of 230 acre-feet. Despite its relatively small size, the dam plays a crucial role in providing water for the surrounding area, making it an essential resource for both the local community and the environment.

Although the dam does not have a spillway and is not regulated by the state, it is equipped with one outlet gate for water release. The risk assessment for the dam is classified as high, indicating the need for careful monitoring and management to ensure its continued safety and functionality. With its strategic location on TR-Salomoneno Creek and under the jurisdiction of the Galveston District, the Lauro Garza Lake No 1 Dam serves as a key infrastructure for water resource management in the region, highlighting the importance of sustainable practices and proactive maintenance in the face of changing climate conditions.

Year Completed

1967

Dam Length

990

Dam Height

16

River Or Stream

TR-SALOMONENO CREEK

Primary Dam Type

Earth

Surface Area

29

Hydraulic Height

16

Nid Storage

230

Structural Height

16

Outlet Gates

None - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

16
       
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.