Woodlawn Lake Dam
Key Takeaway
Woodlawn Lake Dam is classified as high hazard in Texas. It was completed in 1889 and is 137 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 | 20 ft (taller than 33.5% in TX) |
| Dam Length | 850 ft |
| Dam Type | Earth |
| Max Storage | 460 acre-ft |
| Normal Storage | 77 acre-ft |
| Surface Area | 38 acres |
| Drainage Area | 8 sq mi |
| Max Discharge | 11,016 cfs |
| Year Completed | 1889 (137 years old) |
| NID ID | TX01445 |
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 SAN ANTONIO
Local Government
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Low Hazard 12 ftFrequently Asked Questions
What is the hazard classification of Woodlawn Lake Dam?
Woodlawn 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 Woodlawn Lake Dam?
Woodlawn Lake Dam is owned by CITY OF SAN ANTONIO (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Woodlawn Lake Dam built?
Woodlawn Lake Dam was completed in 1889, making it 137 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 Woodlawn Lake Dam?
Woodlawn 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 Woodlawn Lake Dam?
Woodlawn Lake Dam has a dam height of 20 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 Woodlawn Lake Dam last inspected?
Woodlawn Lake Dam was last inspected on September 25, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.