Eo Jonsson Lake No 2 Dam Reservoir Report
Nearby: Eo Jonsson Lake No 1 Dam White Dam
Last Updated: December 12, 2025
Eo Jonsson Lake No 2 Dam, located in Zavala, Texas, serves primarily for irrigation purposes and stands as a testament to efficient water resource management.
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Summary
Built in 1974, this earth dam boasts a height of 20 feet and a length of 4000 feet, with a maximum storage capacity of 162 acre-feet. Despite being privately owned and not regulated by the state, the dam plays a crucial role in maintaining water supply for agricultural needs in the region.
Situated along Chacon Creek, the dam has a hazard potential of "Not Available" and a risk assessment rating of "High (2)", signaling the importance of regular inspections and risk management measures. While lacking an emergency action plan and current condition assessment, the dam's role in fire protection, stock maintenance, and small fish pond creation further underscores its significance in supporting local ecosystems and livelihoods. With no spillway and limited discharge capabilities, the dam's design highlights the need for sustainable water resource development in the face of changing climate patterns.
As climate enthusiasts and water resource advocates, the Eo Jonsson Lake No 2 Dam presents both challenges and opportunities for sustainable water management practices. By leveraging its existing infrastructure for irrigation and agricultural purposes, there is a potential to enhance its functionality for broader environmental conservation efforts. Continued monitoring, risk assessments, and emergency preparedness will be crucial in ensuring the dam's longevity and resilience in the face of future climate uncertainties.
Year Completed |
1974 |
Dam Length |
4000 |
Dam Height |
20 |
River Or Stream |
CHACON CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
20 |
Nid Storage |
162 |
Structural Height |
20 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
20 |
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.
Eo Jonsson Lake No 2 Dam