Puerto Rico Highway 679

Puerto Rico Highway 679 (PR-679) is a north–south road located between the municipalities of Dorado and Vega Alta in Puerto Rico. With a length of 2.7 km, it begins at its intersection with PR-677 and PR-823 in Espinosa barrio, and ends at its junction with PR-2 in Maguayo barrio.

Route description
Puerto Rico Highway 679 is a rural road with a single lane per direction along its entire length. It has two segments in Dorado and another one in Vega Alta. The first segment in Dorado is located in southwestern Espinosa barrio, extending from its southern terminus at PR-677 and PR-823 intersection to the Vega Alta municipal limit. In Vega Alta, PR-679 passes briefly through southeastern Espinosa barrio. Then, PR-679 return to Dorado with its second segment through western Espinosa and southwestern Maguayo until its northern terminus at PR-2 junction.

History
Prior to its numerical designation, PR-679 was known as Carretera de Quebrada Arenas, a road that ran from PR-2 to Toa Alta through PR-679 and PR-823. The current numerical designation corresponds to the 1953 Puerto Rico highway renumbering, a process implemented by the Puerto Rico Department of Transportation and Public Works (Departamento de Transportación y Obras Públicas) that increased the insular highway network to connect existing routes with different locations around Puerto Rico.