Attoyac Bayou Ws Nrcs Site 23a Dam
Attoyac Bayou Ws Nrcs Site 23a Dam is an earth dam located in Nacogdoches County, Texas, built in 2006. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Attoyac Bayou Ws Nrcs Site 23a Dam
The primary purpose of Attoyac Bayou Ws Nrcs Site 23a Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Attoyac Bayou Watershed Authority;nacogdoches County;nacogdoches Swcd (local government). It impounds the Naconiche Creek.
The dam stands 59 feet tall and stretches 1,605 feet across, creates a reservoir covering 692 acres, has a maximum storage capacity of 27,225 acre-feet, and collects water from a drainage area of 27 square miles. Completed in 2006, the structure is relatively new.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 04/12/2023.
At 59 feet, this dam is taller than 95% of all dams in the United States.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Texas dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Texas |
| County | Nacogdoches |
| River/Stream | Naconiche Creek |
| Coordinates | 31.77080, -94.56940 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 59 ft |
| Dam Height | 59 ft |
| Dam Length | 1,605 ft |
| Year Completed | 2006 (20 years old) |
Storage & Hydraulics
| NID Storage | 27,225 acre-ft |
| Max Storage | 27,225 acre-ft |
| Normal Storage | 9,072 acre-ft |
| Surface Area | 692 acres |
| Drainage Area | 27 sq mi |
| Max Discharge | 30,589 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | ATTOYAC BAYOU WATERSHED AUTHORITY;NACOGDOCHES COUNTY;NACOGDOCHES SWCD |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 04/12/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | TX07250 |
| Federal ID | TX07250 |
| More Info | State Dam Safety Program |