Puerto Rico Highway 820
| Ruta 820 | ||||
| Carretera Marzán | ||||
| Route information | ||||
| Maintained by Puerto Rico DTPW | ||||
| Length | 2.1 km (1.3 mi) | |||
| Existed | 1953–present | |||
| Major junctions | ||||
| West end | PR-677 / PR-678 in Maricao | |||
| East end | PR-823 in Río Lajas | |||
| Location | ||||
| Country | United States | |||
| Territory | Puerto Rico | |||
| Municipalities | Vega Alta, Toa Alta | |||
| Highway system | ||||
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Puerto Rico Highway 820 (PR-820) is an east–west road between the municipalities of Toa Alta and Vega Alta in Puerto Rico. With a length of 2.1 kilometers (1.3 mi), it extends from PR-823 in Río Lajas barrio to its intersection with PR-677 and PR-678 in Maricao barrio.