Lake Casa Blanca Dam
Key Takeaway
Lake Casa Blanca Dam is classified as high hazard in Texas. It was completed in 1946 and is 80 years old. Its primary use is irrigation. 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 | 73 ft (taller than 98.3% in TX) |
| Dam Length | 5,800 ft |
| Dam Type | Earth |
| Max Storage | 65.0K acre-ft |
| Normal Storage | 17.5K acre-ft |
| Surface Area | 1,650 acres |
| Drainage Area | 118 sq mi |
| Max Discharge | 178,001 cfs |
| Year Completed | 1946 (80 years old) |
| NID ID | TX02267 |
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
WEBB COUNTY
Local Government
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High Hazard 16 ftFrequently Asked Questions
What is the hazard classification of Lake Casa Blanca Dam?
Lake Casa Blanca 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 Lake Casa Blanca Dam?
Lake Casa Blanca Dam is owned by WEBB COUNTY (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Casa Blanca Dam built?
Lake Casa Blanca Dam was completed in 1946, making it 80 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 Lake Casa Blanca Dam?
Lake Casa Blanca Dam serves the following purposes: Irrigation, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Lake Casa Blanca Dam?
Lake Casa Blanca Dam has a dam height of 73 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 Lake Casa Blanca Dam last inspected?
Lake Casa Blanca Dam was last inspected on December 6, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.