Lake Tonkawa Dam
Key Takeaway
Lake Tonkawa Dam is classified as high hazard in Texas. It was completed in 1971 and is 55 years old. Its primary use is recreation. 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 | 42 ft (taller than 87.1% in TX) |
| Dam Length | 700 ft |
| Dam Type | Earth |
| Max Storage | 1.9K acre-ft |
| Normal Storage | 976 acre-ft |
| Surface Area | 75 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 1,782 cfs |
| Year Completed | 1971 (55 years old) |
| NID ID | TX02425 |
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
PROPERTY OWNERS ASSOCIATION OF HILLTOP LAKES INC
Private
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Low Hazard 39 ftFrequently Asked Questions
What is the hazard classification of Lake Tonkawa Dam?
Lake Tonkawa 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 Tonkawa Dam?
Lake Tonkawa Dam is owned by PROPERTY OWNERS ASSOCIATION OF HILLTOP LAKES INC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Tonkawa Dam built?
Lake Tonkawa Dam was completed in 1971, making it 55 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 Tonkawa Dam?
Lake Tonkawa Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Lake Tonkawa Dam?
Lake Tonkawa Dam has a dam height of 42 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 Tonkawa Dam last inspected?
Lake Tonkawa Dam was last inspected on November 5, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.