Longhorn Dam
Key Takeaway
Longhorn Dam is classified as significant hazard in Texas. It was completed in 1960 and is 66 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 65 ft (taller than 97.7% in TX) |
| Dam Length | 1,240 ft |
| Dam Type | Earth |
| Max Storage | 6.9K acre-ft |
| Normal Storage | 3.5K acre-ft |
| Surface Area | 480 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 859,400 cfs |
| Year Completed | 1960 (66 years old) |
| NID ID | TX01088 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
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 20 ftFrequently Asked Questions
What is the hazard classification of Longhorn Dam?
Longhorn Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Longhorn Dam?
Longhorn Dam is owned by CITY OF AUSTIN (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Longhorn Dam built?
Longhorn 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.
What is the primary purpose of Longhorn Dam?
Longhorn Dam serves the following purposes: Recreation, Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Longhorn Dam?
Longhorn Dam has a dam height of 65 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 Longhorn Dam last inspected?
Longhorn Dam was last inspected on October 20, 2015. Inspection dates indicate when a formal review occurred, not the results of that inspection.