Eyewitness News is told the driver of the car lost control, just north of Exit 4, and flipped into the waterway.
The driver was not injured. The cause of the crash was under investigation.
Two northbound lanes of Route 21 were closed for the investigation. Traffic was delayed for a mile.
---
WEB PRODUCED BY: Lakisha Bostick
----
Click here for more New York and Tri-State News