Lago Grande Dam
Key Takeaway
Lago Grande Dam is classified as high hazard in Texas. It was completed in 1973 and is 53 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 | 24 ft (taller than 47.7% in TX) |
| Dam Length | 800 ft |
| Dam Type | Earth |
| Max Storage | 143 acre-ft |
| Normal Storage | 78 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 550 cfs |
| Year Completed | 1973 (53 years old) |
| NID ID | TX04844 |
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
SEIS LAGOS COMMUNITY SERVICES ASSOCIATES INC
Private
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High Hazard 23 ftFrequently Asked Questions
What is the hazard classification of Lago Grande Dam?
Lago Grande 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 Lago Grande Dam?
Lago Grande Dam is owned by SEIS LAGOS COMMUNITY SERVICES ASSOCIATES INC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lago Grande Dam built?
Lago Grande Dam was completed in 1973, making it 53 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 Lago Grande Dam?
Lago Grande Dam serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Lago Grande Dam?
Lago Grande Dam has a dam height of 24 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 Lago Grande Dam last inspected?
Lago Grande Dam was last inspected on April 4, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.