[3] It is the main avenue in San Patricio, Guaynabo.

It begins at PR-20 and PR-21 in San Juan and ends an interchange with PR-2 and PR-20 in Guaynabo.

[4] PR-19 starts at its southern end at an interchange with PR-20 in San Juan.

From this terminus, the highway runs through the interchange with PR-20 before intersecting PR-21 and turning northward parallel to the PR-20 freeway on its eastern side.

This Puerto Rico road-related article is a stub.