State police, who have not released the person's name or gender, said they are working to notify the next of kin, said Trooper Stephen Nevel.
The incident took place around 8:35 a.m. when the person jumped from the bridge near Stony Point, state police said.
Emergency responders from Rockland, Westchester and Orange counties rushed to the scene.
Troopers are currently reviewing video surveillance tapes to pinpoint the circumstances and to confirm an identity, state police said
This is a developing story. Check back to Daily Voice for updates.
Click here to follow Daily Voice East Dutchess and receive free news updates.