Knapp Lake Dam
Key Takeaway
Knapp Lake Dam is classified as high hazard in Texas. It was completed in 1930 and is 96 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 | 30 ft (taller than 67.1% in TX) |
| Dam Length | 500 ft |
| Dam Type | Earth |
| Max Storage | 154 acre-ft |
| Normal Storage | 50 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 960 cfs |
| Year Completed | 1930 (96 years old) |
| NID ID | TX00782 |
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
TEXAS DEPARTMENT OF TRANSPORTATION
State Government
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High Hazard 33 ftFrequently Asked Questions
What is the hazard classification of Knapp Lake Dam?
Knapp Lake 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 Knapp Lake Dam?
Knapp Lake Dam is owned by TEXAS DEPARTMENT OF TRANSPORTATION (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Knapp Lake Dam built?
Knapp Lake Dam was completed in 1930, making it 96 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 Knapp Lake Dam?
Knapp Lake 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 Knapp Lake Dam?
Knapp Lake Dam has a dam height of 30 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 Knapp Lake Dam last inspected?
Knapp Lake Dam was last inspected on February 26, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.