MULTIPLE CLEARFIELD COUNTY FIRE DEPARTMENTS RESPONDED TO A FULLY INVOLVED TRAILER FIRE ON INTERSTATE 80 ON SATURDAY NIGHT.  CREWS WERE RETURNING FROM THE CURWENSVILLE DAYS PARADE WHEN THEY WERE CALLED TO THE SCENE NEAR MILE MARKER 137 WESTBOUND JUST AFTER 9PM.  OFFICIALS SAY THE TRAILER WAS FULL OF FROZEN MEATS AND IT TOOK THEM OVER 4 HOURS TO CONTAIN THE FIRE AND HELP WITH TRAFFIC CONTROL.  THERE WERE NO INJURIES REPORTED.