Attoyac Bayou Ws Scs Site 12 Dam Reservoir Report
Last Updated: December 5, 2025
Attoyac Bayou WS SCS Site 12 Dam, located in Shelby County, Texas, was completed in 1976 by the USDA NRCS with the primary purpose of flood risk reduction along Stockman Creek.
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Summary
The earth dam stands at a height of 31 feet and spans 1200 feet, with a storage capacity of 1673 acre-feet. The dam has a fair condition assessment as of April 2021 and is regulated by the Texas Commission on Environmental Quality (TCEQ).
The dam features an uncontrolled spillway with a width of 102 feet and outlet gates including one slide (sluice gate) and two uncontrolled gates. The maximum discharge capacity is 881 cubic feet per second, serving a drainage area of 2.56 square miles. Despite the moderate risk level assessed, the hazard potential is not available. The last inspection was conducted in June 2011, with an inspection frequency of 5 years, and the emergency action plan (EAP) status remains unspecified.
Overall, Attoyac Bayou WS SCS Site 12 Dam plays a crucial role in mitigating flood risks in the area while also providing fire protection and supporting livestock and fish pond activities. Enthusiasts of water resources and climate resilience will appreciate the dam's design and operational details, as well as its significance in the local ecosystem and community resilience efforts overseen by local government authorities.
Year Completed |
1976 |
Dam Length |
1200 |
Dam Height |
31 |
River Or Stream |
STOCKMAN CREEK |
Primary Dam Type |
Earth |
Surface Area |
17 |
Hydraulic Height |
31 |
Drainage Area |
2.56 |
Nid Storage |
1673 |
Structural Height |
31 |
Outlet Gates |
Slide (sluice gate) - 1, Uncontrolled - 2 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
31 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Bayou Lanana At Nacogdoches
|
9cfs |
Attoyac Bayou Nr Chireno
|
1200cfs |
E Fk Angelina Rv Nr Cushing
|
40cfs |
Ayish Bayou Nr San Augustine
|
196cfs |
Bayou Grand Cane Near Stanley
|
6cfs |
Angelina Rv Nr Alto
|
328cfs |
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.
Attoyac Bayou Ws Scs Site 12 Dam