Dry Devils And Lowrey Ws Scs Site 2 Dam Reservoir Report
Last Updated: December 22, 2025
Dry Devils and Lowrey WS SCS Site 2 Dam, located on the Dry Devils River in Sonora, Texas, is a vital structure for flood risk reduction in the area.
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Summary
Built in 1961 by the USDA NRCS, this earth dam stands at a height of 48 feet and spans 1870 feet in length. With a maximum storage capacity of 9232 acre-feet and a normal storage level of 200 acre-feet, the dam plays a crucial role in managing water flow and protecting the surrounding communities from potential flooding events.
Managed by the TCEQ and regulated by the state of Texas, the dam features an uncontrolled spillway with a width of 404 feet. The outlet gates consist of two uncontrolled outlets and one valve, allowing for controlled release of water when necessary. The dam has not been rated for condition assessment, but it undergoes inspections every 5 years to ensure its structural integrity and functionality. Despite its moderate risk level, the Dry Devils and Lowrey WS SCS Site 2 Dam remains a key asset in the region's water resource management efforts.
As a focal point for water resource and climate enthusiasts, the Dry Devils and Lowrey WS SCS Site 2 Dam serves as a testament to the importance of infrastructure in mitigating flood risks and safeguarding communities. With its strategic location on the Dry Devils River and its significant storage capacity, this dam stands as a crucial element in the state's flood risk reduction strategy. As climate change continues to impact weather patterns and water availability, the maintenance and upkeep of structures like this dam are essential for ensuring the resilience and sustainability of water resources in the region.
Year Completed |
1961 |
Dam Length |
1870 |
Dam Height |
48 |
River Or Stream |
DRY DEVILS RIVER |
Primary Dam Type |
Earth |
Surface Area |
45 |
Hydraulic Height |
48 |
Drainage Area |
25.8 |
Nid Storage |
9232 |
Structural Height |
48 |
Outlet Gates |
Uncontrolled - 2, Valve - 1 |
Hazard Potential |
Not Available |
Foundations |
Rock, Soil |
Nid Height |
48 |
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.
Dry Devils And Lowrey Ws Scs Site 2 Dam