Carl Ernest Dam Reservoir Report
Last Updated: December 5, 2025
Carl Ernest Dam, located in Atascosa, Texas, along the TR-Atascosa River, was completed in 1977 by the USDA NRCS.
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Summary
This private earth dam stands at a height of 24 feet, with a structural height of 25 feet and a length of 738 feet. With a storage capacity of 302 acre-feet and a surface area of 31.5 acres, the dam serves various purposes beyond flood control, contributing to water resource management in the region.
Despite its relatively small drainage area of 1.63 square miles, Carl Ernest Dam plays a crucial role in water management and climate resilience in the area. Although it lacks a spillway, the dam's stone core and soil foundation provide stability and support to the structure. While the dam's hazard potential is not available, its risk assessment is classified as high, with a risk characterization of 2 out of 4, highlighting the importance of regular inspections and maintenance to ensure its continued functionality for water resource enthusiasts and climate advocates alike.
Overall, Carl Ernest Dam stands as a testament to the collaboration between private entities and government agencies in building essential infrastructure for water resource management. As a key component of the local water supply system, the dam supports the region's water needs and contributes to climate resilience efforts. With its high risk potential, continuous monitoring and risk management measures are essential to safeguard the dam's integrity and ensure its long-term sustainability for the benefit of the community and the environment.
Year Completed |
1977 |
Dam Length |
738 |
Dam Height |
24 |
River Or Stream |
TR-ATASCOSA RIVER |
Primary Dam Type |
Earth |
Surface Area |
31.5 |
Hydraulic Height |
24 |
Drainage Area |
1.63 |
Nid Storage |
302 |
Structural Height |
25 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Soil |
Nid Height |
25 |
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.
Carl Ernest Dam