ROOF FALL IN THE #29 ROOM OF THE 3RD NORTH SECTION. ROOF FALL WAS 450' FROM MAIN RETURN OR 9 XCUTS IN THE LAST OPEN X-CUT BETWEEN #29 AND 30 ROOM. FALL WAS 40' BY 40' LONG 18-20' WIDE AND 4-10 ' HIGH. AREA WAS BOLTED WITH 4' AND 6' FULLY GROUTED BOLTS WITH 8"" OVERSIZE BEARING PLATES.