Dry Devils And Lowrey Ws Scs Site 9 Dam Reservoir Report
Last Updated: December 22, 2025
Dry Devils and Lowrey WS SCS Site 9 Dam, located in Sutton County, Texas, is a crucial piece of infrastructure designed by the USDA NRCS to mitigate flood risks along the Lowrey Draw river.
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Summary
Completed in 1960, this earth dam stands at a height of 34 feet and spans 2415 feet, providing a storage capacity of 1289 acre-feet. Despite its age, the dam is maintained by local government authorities and is subject to regular inspections and enforcement by the Texas Commission on Environmental Quality.
The dam's primary purpose is flood risk reduction, and it features uncontrolled spillways and outlet gates for water management. With a drainage area of 2.77 square miles and a maximum discharge capacity of 6441 cubic feet per second, the dam plays a vital role in protecting the surrounding area from potential inundation. While the dam's hazard potential and condition assessment are currently not available, its moderate risk rating suggests the importance of ongoing monitoring and risk management measures.
As an essential component of the local water resource infrastructure, Dry Devils and Lowrey WS SCS Site 9 Dam not only provides flood protection but also contributes to water storage and management in the region. With its strategic location in Sonora and under the oversight of regulatory agencies, this dam serves as a critical asset for safeguarding communities and ecosystems against the impacts of extreme weather events and ensuring sustainable water resource management practices in the area.
Year Completed |
1960 |
Dam Length |
2415 |
Dam Height |
34 |
River Or Stream |
LOWREY DRAW |
Primary Dam Type |
Earth |
Surface Area |
10 |
Hydraulic Height |
34 |
Drainage Area |
2.77 |
Nid Storage |
1289 |
Structural Height |
34 |
Outlet Gates |
Uncontrolled - 2, Valve - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
34 |
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 9 Dam