A ROOF FALL WAS DISCOVERED ON D MAINS NO. 7 ENTRY STARTING 40 FT IN BY SURVEY STATION NO 25932 AND CONTINUING 170 FT THRU 2-4 WAY INTERSECTION. THE FALL WIDTH WAS APPROX 18 FT WIDE AND THE HEI GHT WAS APPROX 6-8 FT. THE FALL CONTAINED 5 FT FULLY GROUTED RESIN AND TENSION BOLTS. FALL WAS DANGERED OFF AND FLOOR TO ROOF SUPPORT ADDED AT APPROACHES. FALL WILL NOT BE CLEANED UP.