Adjuntas Dam
Key Takeaway
Adjuntas Dam is classified as high hazard in Puerto Rico. It was completed in 1950 and is 76 years old. Its primary use is hydroelectric. 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 | 80 ft (taller than 36.1% in PR) |
| Dam Type | Gravity |
| Max Storage | 760 acre-ft |
| Normal Storage | 384 acre-ft |
| Surface Area | 15 acres |
| Drainage Area | 15 sq mi |
| Max Discharge | 37,500 cfs |
| Year Completed | 1950 (76 years old) |
| NID ID | PR00007 |
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
PUERTO RICO ELECTRIC POWER AUTHORITY
Public Utility
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High Hazard 188 ftFrequently Asked Questions
What is the hazard classification of Adjuntas Dam?
Adjuntas 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 Adjuntas Dam?
Adjuntas Dam is owned by PUERTO RICO ELECTRIC POWER AUTHORITY (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Adjuntas Dam built?
Adjuntas Dam was completed in 1950, making it 76 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 Adjuntas Dam?
Adjuntas Dam serves the following purposes: Hydroelectric. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Adjuntas Dam?
Adjuntas Dam has a dam height of 80 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 Adjuntas Dam last inspected?
Adjuntas Dam was last inspected on August 8, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.