It starts from the intersection of the Old National Highway (Manila South Road) and J.P. Rizal Street (Rizal Shrine Road) at the Calamba Crossing in Calamba.

Most of the highway existed back to the American colonial era as part of Highway 21 that linked the city of Manila to the provinces of Rizal and Laguna by circumscribing Laguna de Bay.

[6][7] Roads bypassing the poblacions of Santa Cruz, Calauan, and Bay were later built to form the present-day highway.

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