AN UNINTENTIONAL ROOF FALL WAS DISCOVERED IN THE#1 ENTRY 1 BREAK INBY SPAD #1970 IN AN INTERSECTION. SIZE OF FALL APPROXIMATELY 5' HIGH 36' LONG18' WIDE. NO INJURIES; VENTILATION WAS NOT INTER RUPTED; NO EQUIPMENT WAS CAUGHT. THE AREA HAD BEEN SUPPORTED WITH 4' FULLY GROUTED RESIN BOLTSFALL WILL NOT BE CLEANED UP.