Attoyac Bayou WS NRCS Site 23a Dam
Key Takeaway
Attoyac Bayou WS NRCS Site 23a Dam is classified as high hazard in Texas. It was completed in 2006 and is 20 years old. Its primary use is flood risk reduction. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 59 ft (taller than 96.7% in TX) |
| Dam Length | 1,605 ft |
| Dam Type | Earth |
| Max Storage | 27.2K acre-ft |
| Normal Storage | 9.1K acre-ft |
| Surface Area | 692 acres |
| Drainage Area | 27 sq mi |
| Max Discharge | 30,589 cfs |
| Year Completed | 2006 (20 years old) |
| NID ID | TX07250 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
ATTOYAC BAYOU WATERSHED AUTHORITY;NACOGDOCHES COUNTY;NACOGDOCHES SWCD
Local Government
Nearby Dams
Mckinney Lake Dam
Nacogdoches, TX
Low Hazard 18 ftAttoyac Bayou WS SCS Site 20 Dam
Nacogdoches, TX
Low Hazard 35 ftAttoyac Bayou WS SCS Site 21 Dam
Nacogdoches, TX
Low Hazard 42 ftFord Lake Dam
Nacogdoches, TX
Low Hazard 18 ftHolly Lake Dam
Nacogdoches, TX
Low Hazard 16 ftLake Tinkle Dam
Nacogdoches, TX
Low Hazard 20 ftEarnest L Johnson Dam
Nacogdoches, TX
Low Hazard 12 ftAttoyac Bayou WS SCS Site 3 Dam
Rusk, TX
Low Hazard 33 ftFrequently Asked Questions
What is the hazard classification of Attoyac Bayou WS NRCS Site 23a Dam?
Attoyac Bayou WS NRCS Site 23a Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Attoyac Bayou WS NRCS Site 23a Dam?
Attoyac Bayou WS NRCS Site 23a Dam is owned by ATTOYAC BAYOU WATERSHED AUTHORITY;NACOGDOCHES COUNTY;NACOGDOCHES SWCD (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Attoyac Bayou WS NRCS Site 23a Dam built?
Attoyac Bayou WS NRCS Site 23a Dam was completed in 2006, making it 20 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Attoyac Bayou WS NRCS Site 23a Dam?
Attoyac Bayou WS NRCS Site 23a Dam serves the following purposes: Flood Risk Reduction, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Attoyac Bayou WS NRCS Site 23a Dam?
Attoyac Bayou WS NRCS Site 23a Dam has a dam height of 59 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was Attoyac Bayou WS NRCS Site 23a Dam last inspected?
Attoyac Bayou WS NRCS Site 23a Dam was last inspected on April 12, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.