PR-505 runs north to south, in a general SSE direction, and mostly alongside Bayagán River in barrio Machuelo Arriba.

The road connects Barrio San Patricio to the urban area of city of Ponce.

The road and serves the communities of La Mocha, Montes Llanos, and Hogares Seguros, among others.

[4] The community of "La Yuca" is also on PR-505, at km 11.3, in the jurisdiction of Barrio Machuelo Arriba.

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