AN UNINTENTIONAL ROOF FALL OCCURRED IN THE 4 WAY INTERSECTION OF ENTRY #5 AT 2 + 30 IN THE 1ST SOUTH PANEL OFF OF 2ND MAIN EAST. DID NOT AFFECT VENTILATION OR IMPEDE TRAVEL. THE ROOF WAS SUPPO RTED BY 4' FULLY GROUTED RESIN ROOF BOLTS INSTALLED IN OUT CURRENT APPROVED PATTERN. DEVELOPMENT DATE WAS 10/5/00.