Sanderson Canyon Ws Scs Site 8 Dam Reservoir Report
Last Updated: February 11, 2026
Sanderson Canyon WS SCS Site 8 Dam, located in Sanderson, Texas, is a crucial structure designed by the USDA NRCS to mitigate flood risks along the TR-THREEMILE DRAW stream.
Summary
Completed in 1978, this earth dam stands at a height of 46 feet and spans a length of 2363 feet, with a storage capacity of 1510 acre-feet. The dam is regulated by the Texas Commission on Environmental Quality (TCEQ) and undergoes regular inspections to ensure its satisfactory condition.
With a primary purpose of flood risk reduction, the Sanderson Canyon WS SCS Site 8 Dam features an uncontrolled spillway with a width of 203 feet and outlet gates for water release. The dam's drainage area covers 3.35 square miles, with a maximum discharge capacity of 23,772 cubic feet per second. Despite its moderate risk assessment rating, the dam has not been assigned a Dam Safety Action Classification (DSAC) date, indicating a need for continuous monitoring and risk management measures.
Overall, the Sanderson Canyon WS SCS Site 8 Dam serves as a vital infrastructure for flood control in Terrell County, Texas, demonstrating effective design and regulatory oversight to safeguard the surrounding community from potential water-related hazards.
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Humidity
15-Day Weather Outlook
Year Completed |
1978 |
Dam Length |
2363 |
Dam Height |
46 |
River Or Stream |
TR-THREEMILE DRAW |
Primary Dam Type |
Earth |
Surface Area |
22 |
Hydraulic Height |
46 |
Drainage Area |
3.35 |
Nid Storage |
1510 |
Structural Height |
48 |
Outlet Gates |
Slide (sluice gate) - 1, Uncontrolled - 2 |
Hazard Potential |
Not Available |
Foundations |
Rock, Soil |
Nid Height |
48 |
Seasonal Comparison
5-Day Hourly Forecast Detail
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.
Sanderson Canyon Ws Scs Site 8 Dam