North Mopac Dam
Key Takeaway
North Mopac Dam is classified as high hazard in Texas. It was completed in 1960 and is 66 years old. 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 | 7 ft (taller than 0.1% in TX) |
| Dam Length | 1,500 ft |
| Dam Type | Earth |
| Max Storage | 98 acre-ft |
| Normal Storage | 0 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 6 sq mi |
| Max Discharge | 111 cfs |
| Year Completed | 1960 (66 years old) |
| NID ID | TX07293 |
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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What is the hazard classification of North Mopac Dam?
North Mopac 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 North Mopac Dam?
North Mopac Dam is owned by CITY OF AUSTIN (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was North Mopac Dam built?
North Mopac Dam was completed in 1960, making it 66 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
How tall is North Mopac Dam?
North Mopac Dam has a dam height of 7 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 North Mopac Dam last inspected?
North Mopac Dam was last inspected on November 1, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.