Jones says the search operation will continue until dark Friday and then be reassessed.
Police say 21-year-old Shamsid-Din Abdur-Raheem, of Galloway, told them he threw his daughter, Zara Malani-lin Abdur, off the Driscoll Bridge on the Garden State Parkway on Tuesday.
Abdur-Raheem has pleaded not guilty to charges including the attempted murder of the child's maternal grandmother whom police say he assaulted during the alleged abduction. The child's mother had sought a restraining order against him.
Zara was reported to be wearing a pink and gray Carter's onesie and may have been wrapped in a blue sleeping bag.
If anyone has information regarding the infant or this case, they are urged to report it confidentially by calling the State Police hotline 732-264-4150.