Chaparrosa Lake Dam Reservoir Report
Nearby: Willow Tank Dam Johnson Lake Dam
Last Updated: December 12, 2025
Chaparrosa Lake Dam, situated in Zavala, Texas, is a privately owned structure completed in 1963 with a primary purpose of fire protection, stock maintenance, and serving as a small fish pond.
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Summary
This earth-type dam stands at a height of 26 feet and spans a length of 1600 feet, providing a storage capacity of 832 acre-feet. Despite its age, the dam has not been rated for condition assessment, with a high hazard potential.
The dam, located on the TR-MAVERICK CREEK, falls under the regulatory authority of the Texas Commission on Environmental Quality (TCEQ) and is subject to state inspection, permitting, and enforcement protocols. Despite lacking a spillway, the dam remains a critical component for water resource management in the region. The risk assessment for Chaparrosa Lake Dam indicates a high risk level, emphasizing the importance of ongoing monitoring and maintenance to ensure the safety and integrity of the structure for both water resource and climate enthusiasts.
With Congressman Will Hurd (R) representing the area, Chaparrosa Lake Dam stands as a key feature in the local landscape, offering essential services for fire protection and livestock management. While its condition assessment remains pending, the dam's significance in water storage and management underscores the need for continued oversight and investment in its upkeep to mitigate potential risks and ensure the preservation of this vital water resource infrastructure.
Year Completed |
1963 |
Dam Length |
1600 |
Dam Height |
26 |
River Or Stream |
TR-MAVERICK CREEK |
Primary Dam Type |
Earth |
Surface Area |
48 |
Hydraulic Height |
26 |
Nid Storage |
832 |
Structural Height |
26 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
26 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Chaparrosa Lake Dam