Attoyac Bayou Ws Nrcs Site 23a Dam Reservoir Report
Last Updated: December 5, 2025
Located in Nacogdoches, Texas, the Attoyac Bayou WS NRCS Site 23a Dam stands as a testament to effective flood risk reduction measures in the region.
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Summary
Built in 2006 by the USDA NRCS, this earth dam on NACONICHE CREEK boasts a height of 59 feet and a length of 1605 feet, providing essential protection to the surrounding area. With a storage capacity of 27,225 acre-feet, the dam plays a crucial role in managing water resources and protecting against potential flooding events.
Managed by the local government and regulated by the Texas Commission on Environmental Quality (TCEQ), the dam is regularly inspected and maintained to ensure its structural integrity. The dam's spillway, with a width of 405 feet, helps manage excess water flow during heavy rainfall, while its outlet gates include a slide and two uncontrolled gates. The dam's satisfactory condition assessment in 2017 reflects the ongoing commitment to its upkeep and the safety of the community it serves.
With a moderate risk rating, the Attoyac Bayou WS NRCS Site 23a Dam continues to be a vital piece of infrastructure for flood risk reduction and recreation in the area. As climate change brings about more extreme weather events, the importance of well-maintained dams like this one cannot be overstated. For water resource and climate enthusiasts, this dam serves as a reminder of the crucial role that infrastructure plays in protecting communities and managing the impacts of a changing climate.
Year Completed |
2006 |
Dam Length |
1605 |
Dam Height |
59 |
River Or Stream |
NACONICHE CREEK |
Primary Dam Type |
Earth |
Surface Area |
692 |
Hydraulic Height |
59 |
Drainage Area |
27.27 |
Nid Storage |
27225 |
Structural Height |
59 |
Outlet Gates |
Slide (sluice gate) - 1, Uncontrolled - 2 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
59 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Bayou Lanana At Nacogdoches
|
9cfs |
E Fk Angelina Rv Nr Cushing
|
40cfs |
Angelina Rv Nr Alto
|
328cfs |
Attoyac Bayou Nr Chireno
|
1200cfs |
Ayish Bayou Nr San Augustine
|
196cfs |
Sabine Rv Nr Carthage
|
9200cfs |
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 Nrcs Site 23a Dam