It consists of a set of structures that were built between 1846 and 1886 by landowners to transport water from the Coamo River to the fields of their sugarcane plantations.

The Tres haciendas system runs for 9.7 km through the coastal plain of Santa Isabel, using only gravity to transport the water through a set of underground, open, and elevated channels.

It presents some modifications and repairs dating to the 20th century, when the canals were integrated to the newer irrigation system.

Sections of the system have been impacted by modern agricultural machinery, and one of its key components, the distribution module, was partially demolished, albeit under archaeological supervision.

However, this is one of the most complete and well-preserved irrigation systems of the 19th century in the southern coastal valley, and possibly of the island.