Traffic and pedestrian traffic was stopped over the Grayson Place Bridge near Palisade Avenue after the woman was spotted outside the protective fence around 7:15 p.m. Saturday, April 9.
The woman apparently was waiting for a train before jumping, one responder said.
Township police alerted a Bergen County Regional SWAT Team, which sent a crisis negotiation unit.
Train traffic was also halted as negotiators spoke with her.
The standoff ended around 10:45 p.m. An EMS unit conducted an evaluation before she was hospitalized.
It wasn't immediately clear what upset the woman, who was described as a professional from out of town. No one could say what she was doing in Teaneck. She isn't facing charges, responders said.
Crude oil and other flammable liquids are shipped along the CSX tracks, frequently raising concerns -- and protests -- from residents.
Click here to follow Daily Voice Lakewood and receive free news updates.