The sexual predator who raped one woman – and targeted another for assault – on the Washington Bridge in Upper Manhattan was arrested, cops said Saturday.

Bronx resident Pedro Rodriguez, 21, was charged with raping a 20-year-old woman as she walked on the pedestrian crossing toward Manhattan at 1:30 a.m. on Aug. 25, authorities said.

Rodriguez “simulated a weapon by his waistband” and demanded cash from the victim before the attack, according to police.

In a separate incident on Feb. 20, Rodriguez allegedly tried to rob and assault another woman on the same bridge.

In that attack, he demanded money at knifepoint from the 26-year-old victim before sticking his hands down her pants, cops said.

Both victims were treated and released from local hospitals.