A ROOF FALL OCCURRED IN ENTRY #2 OF THE MAIN SOUTHWEST AT SURVEY STATION 14 + 70. THE FALL MEASURED 60'LONG X 18'WIDE X 10'THICK. THE AREA HAD BEEN SUPPORTED WITH 6' FULLY GROUTED & 9' DOUBLE LOCK BOLTS. ALL APPROACHES TO THIS AREA HAVE BEEN TIMBERED OFF.