Calle Mayor
The road's northern terminus is at its intersection with Puerto Rico Highway 143 in Utuado's barrio Consejo, about 1/4 mile north of Utuado's borderline with the municipality of Adjuntas. The road runs in a southerly fashion from its northern terminus at Barrio Consejo, Utuado, through barrio Portugués of the municipality of Adjuntas, and then enters the municipality of Ponce, running through barrios Guaraguao, San Patricio, and Tibes. Starting in 2008, the flow of this road through Barrio Tibes was interrupted by the construction of the Rio Portugués river dam. As a result, there is now a permanent 3-mile stretch of this road that no longer exists. The road picks up again at the southern end of the Rio Portugues river dam, continuing in its southerly run through the rest of barrio Tibes and then through barrios Portugués Rural, and Portugués Urbano of the municipality of Ponce, before reaching barrio Sexto (Cantera) in the city of Ponce. The road then follows the course of Calle Mayor Cantera street in Ponce until it comes to its southern terminus at Calle Mayor street's intersection with Calle Isabel, (Calle Isabel is signed as PR-1).