Tom Miller Dam
Key Takeaway
Tom Miller Dam is classified as high hazard in Texas. It was completed in 1939 and is 87 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 | 85 ft (taller than 98.9% in TX) |
| Dam Length | 1,395 ft |
| Dam Type | Concrete |
| Max Storage | 115.4K acre-ft |
| Normal Storage | 25.2K acre-ft |
| Surface Area | 1,830 acres |
| Drainage Area | 26,124 sq mi |
| Max Discharge | 1,517,697 cfs |
| Year Completed | 1939 (87 years old) |
| NID ID | TX01086 |
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
CITY OF AUSTIN
Local Government
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High Hazard 8 ftFrequently Asked Questions
What is the hazard classification of Tom Miller Dam?
Tom Miller 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 Tom Miller Dam?
Tom Miller Dam is owned by CITY OF AUSTIN (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Tom Miller Dam built?
Tom Miller Dam was completed in 1939, making it 87 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 Tom Miller Dam?
Tom Miller Dam serves the following purposes: Irrigation, Recreation, Hydroelectric, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Tom Miller Dam?
Tom Miller Dam has a dam height of 85 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 Tom Miller Dam last inspected?
Tom Miller Dam was last inspected on July 30, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.