The New Fairfield Resident State Trooper is investigating a serious accident that injured a teen.  Emergency responders were called to Route 39 shortly before 9:30pm Monday.  The Honda Civic was heavily damaged and the driver was trapped inside.  Route 39 was closed to traffic as firefighters extricated the 17-year old.  The Sherman teen was the sole occupant.  Police say the driver lost control as he headed northbound, left the road way, struck trees and came to an uncontrolled stop against a utility pole. The teen was transported to Danbury Hospital with serious injuries.