A truck went off the highway in Danbury early this morning and down an embankment.  Firefighters responded to an area  between Lake Ave Extension and Interstate 84 around 3:30 this morning after State Police learned that a truck left the roadway.  Responders found the truck had tumbled down off the Interstate, and came to rest in area of heavy brush by the Shell Gas Station.  An employee of the Ethan Allen Inn saw the accident and pulled the driver to safety. The driver was transported to the hospital. Firefighters had to then work to clear brush and debris to gain access to the truck, to address hazards associated with the crash, as well as provide access for the tow recovery.  There were no hazardous materials involved. Lake Avenue Extension was closed for about three hours.