Río Bucaná has its origin in barrio Machuelo Arriba where it forms at an altitude of 115 feet (35 m).Río Bucaná used to run for some 29.5 kilometers (18.3 mi)[6] prior to canalization and other diversion work by the U.S. Army Corps of Engineers.Río Bucaná is formed in barrio Machuelo Arriba by the confluence of the Bayagán and Cerrillos rivers.[7] Río Bucaná is channelized from the point it enters the city of Ponce and until it is fed by Rio Portugues (a river that is also channelized) in Barrio Bucaná at the southern tip of Julio Enrique Monagas Family Park.Roads are listed as the river flows from its origin at the confluence of Río Bayagán and Río Cerrillos rivers, located in Barrio Machuelo Arriba, north of the city of Ponce, to its emptying into the Caribbean Sea in Barrio Bucaná in the south (N/A = Data not available): Río Bucaná is largely used for irrigation of crops on the southern plains of Puerto Rico located east of the city of Ponce.