Leona River Ws Scs Site 3 Dam Reservoir Report
Last Updated: December 25, 2025
Located in Uvalde, Texas, the Leona River WS SCS Site 3 Dam is a critical piece of infrastructure designed by the USDA NRCS to reduce flood risks in the area.
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Summary
Completed in 1983, this earth dam stands at a height of 45 feet and spans a length of 3750 feet, with a maximum storage capacity of 21306 acre-feet. The dam's primary purpose is flood risk reduction, serving to protect the surrounding area from the impacts of extreme weather events.
Managed by the Texas Commission on Environmental Quality (TCEQ), the Leona River WS SCS Site 3 Dam is subject to regular inspections to ensure its structural integrity and functionality. The dam features an uncontrolled spillway with a width of 703 feet and two uncontrolled outlet gates. Despite its satisfactory condition assessment in April 2021, the dam's hazard potential and risk assessment are classified as moderate, highlighting the importance of ongoing risk management measures to safeguard the community and environment.
As part of the Fort Worth District, the Leona River WS SCS Site 3 Dam serves as a vital component of the region's water resource management system. With a drainage area of 37 square miles and a normal storage capacity of 185 acre-feet, this dam plays a crucial role in regulating water flow and mitigating flood risks in the Uvalde area. As climate change continues to impact precipitation patterns, the importance of well-maintained infrastructure like the Leona River WS SCS Site 3 Dam cannot be overstated in ensuring the resilience of communities against the threats of extreme weather events.
Year Completed |
1983 |
Dam Length |
3750 |
Dam Height |
45 |
River Or Stream |
LEONA RIVER |
Primary Dam Type |
Earth |
Surface Area |
86 |
Hydraulic Height |
45 |
Drainage Area |
37 |
Nid Storage |
21306 |
Structural Height |
45 |
Outlet Gates |
Uncontrolled - 2 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
45 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Frio Rv Bl Dry Frio Rv Nr Uvalde
|
0cfs |
Leona Rv Nr Uvalde
|
0cfs |
Frio Rv At Concan
|
26cfs |
Nueces Rv Bl Uvalde
|
1cfs |
Dry Frio Rv Nr Reagan Wells
|
6cfs |
Nueces Rv At Laguna
|
50cfs |
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.
Leona River Ws Scs Site 3 Dam