The incident occurred on Route 1&9 near East Jersey Street around 4:10 a.m., responders told Daily Voice.
The victim appeared to have gotten pinned under the truck's tires. She was pronounced dead at the scene.
The roadway was still closed as of 9:30 a.m.
The truck also had a large dumpster attached to the back, and remained at the scene.
This is a developing story. Check back for more.
Click here to follow Daily Voice Fair Lawn-Glen Rock and receive free news updates.