Rio �� Blanco Dam

About Rio �� Blanco Dam

The primary purpose of Rio �� Blanco Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Puerto Rico Aqueduct And Sewer Authority (public utility). It impounds the Rio Blanco - Os near Naguabo.

The dam stands 64 feet tall, creates a reservoir covering 127 acres, has a storage capacity of 3,845 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2009, the structure is relatively new.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 05/07/2019.

At 64 feet, this dam is taller than 96% of all dams in the United States.

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Puerto Rico dam safety program can provide more specific information about emergency planning for this structure.

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