Puerto Rico Highway 820
{{Short description|Highway in Puerto Rico}}
{{Use dmy dates|date=May 2021}}
{{Infobox road
|state=PR
|type=PR
|route=820
|alternate_name={{lang|es-pr|Carretera Marzán}}
|length_km=2.1
|direction_a=West
|terminus_a={{jct|state=PR|Ter|677|Ter|678}} in Maricao
|direction_b=East
|terminus_b={{jct|state=PR|Ter|823}} in Río Lajas
|municipalities=Vega Alta, Toa Alta
|previous_type=Ter
|previous_route=819
|next_type=Ter
|next_route=821
}}
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 {{convert|2.1|km|sp=us}}, it extends from PR-823 in Río Lajas barrio to its intersection with PR-677 and PR-678 in Maricao barrio.
Route description
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.
Carretera PR-820, Vega Alta, Puerto Rico (1).jpg|Western terminus at PR-677 and PR-678 intersection in Maricao, Vega Alta, looking east
Carretera PR-820, Vega Alta, Puerto Rico (2).jpg|Eastbound sign in Maricao, Vega Alta
Major intersections
Carretera PR-823, intersección con la carretera PR-820, Toa Alta, Puerto Rico (1).jpg|PR-823 east approaching PR-820 in Río Lajas, Toa Alta
Carretera PR-823, intersección con la carretera PR-820, Toa Alta, Puerto Rico (2).jpg|PR-823 east at PR-820 intersection in Río Lajas, Toa Alta
Carretera PR-677, intersección con las carreteras PR-678 y PR-820, Vega Alta, Puerto Rico.jpg|PR-677 east near PR-678 and PR-820 intersection in Maricao, Vega Alta
Carretera PR-678, intersección con las carreteras PR-677 y PR-820, Vega Alta, Puerto Rico.jpg|PR-678 south at PR-677 and PR-820 intersection in Maricao, Vega Alta
|municipality=Vega Alta
|location=Maricao
|ctdab=Vega Alta
|km=2.1
|road={{jct|state=PR|Ter|677|Ter|678|name2=Carretera Pámpanos|city1=Vega Alta|location2=Maricao}}
|notes=Western terminus of PR-820
}}
|municipality=Toa Alta
|location=Río Lajas
|ctdab=Toa Alta
|km=0.0
|road={{jct|state=PR|Ter|823|to2=y|Sec|142|name2=Carretera José Antonio "Sonny" Rodríguez Ortiz|city1=Toa Alta|city2=Dorado|city3=Corozal}}
|notes=Eastern terminus of PR-820
}}
{{jctbtm}}