A ROOF FALL OCCURRED IN THE SOUTH WEST MAINS AT SURVEY STATION 14+70 BETWEEN #3 & #4 ENTRIES. THE FALL MEASURED 40' LONG X 15' WIDE X 9' THICK. THIS AREA HAD BEEN BOLTED WITH 6' FULLY-GROUTE D & 9' DOUBLE-LOCK BOLTS. ALL APPROACHES TO THIS AREA HAVE BEEN TIMBERED OFF.