Puerto Rico Highway 820
Puerto Rico Highway 820 is an east–west road between the municipalities of Toa Alta and Vega Alta in Puerto Rico. With a length of, it extends from PR-823 in [Río Lajas, Toa Alta, Puerto Rico|Toa Alta, Puerto Rico|Río Lajas] barrio to its intersection with PR-677 and PR-678 in [Maricao, Vega Alta, Puerto Rico|Vega Alta, Puerto Rico|Maricao] barrio.
Puerto Rico Highway 820 is a rural road with a single lane per direction along its entire length. In Toa Alta, PR-820 leaves from PR-823, passing through Marzán neighborhood until the Vega Alta municipal limit. In Vega Alta, PR-820 has a short length from the Toa Alta municipal limit until its western terminus at PR-677 and PR-678 intersection. The entire length in Toa Alta is located in Río Lajas barrio, while in Vega Alta it is located entirely in Maricao barrio.