Le Brunie Lake No 4 Dam Reservoir Report
Last Updated: December 5, 2025
Le Brunie Lake No 4 Dam, located in Zapata, Texas, was completed in 1968 and serves as a vital water supply source for the region.
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Summary
The dam, primarily owned by a private entity, stands at a height of 14 feet with a length of 1400 feet, holding a maximum storage capacity of 140 acre-feet. Although the dam is not regulated by the state, it undergoes regular inspections and maintenance to ensure its structural integrity.
The earth-type dam, with a buttress core design, is situated on El Jaral Creek and does not have a spillway system. Despite its high hazard potential, the dam is currently rated as not available for condition assessment. The risk assessment for the dam is categorized as high, indicating the need for effective risk management measures. While the dam lacks certain emergency preparedness features, it remains a crucial infrastructure for water resource management in the area.
With its significant contribution to water supply and storage capacity, Le Brunie Lake No 4 Dam plays a key role in sustaining water resources in the region. Its strategic location and design make it a critical asset for addressing water needs and ensuring water security in Zapata, Texas. As climate change impacts water availability, the dam's efficient operation and maintenance are essential for adapting to changing conditions and mitigating risks associated with water resource management.
Year Completed |
1968 |
Dam Length |
1400 |
Dam Height |
14 |
River Or Stream |
EL JARAL CREEK |
Primary Dam Type |
Earth |
Surface Area |
19 |
Hydraulic Height |
14 |
Nid Storage |
140 |
Structural Height |
14 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
14 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Rio Grande At Laredo
|
1760cfs |
Zacate Ck At Laredo
|
0cfs |
San Casimiro Ck Nr Freer
|
0cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Le Brunie Lake No 4 Dam