ROAD CLOSED; DUE TO A FATAL ACCIDENT INVOLVING TWO TRACTOR TRAILERS;  NOTE: NORTHBOUND TRAFFIC IS BEING DETOURED AT EXIT 15A  SLOATSBURG  TO RT; 17 NORTH AND THEN RE ENTER IN HARRIMAN; N B RT 17 IS VERY SLOW THROUGH MONROE ;   S B, SLOW DUE TO RUBBERNECKING;