AN UNINTENTIONAL ROOF FALL WAS DISCOVERED ON 8-6-01 IN THE #2 ENTRY (NEUTRAL) AT #125 BREAK. FALL WAS APPROX. 18' W X 20' L X 6' H (INTERSECTION). NO INJURIES, NO EQUIPMENT CAUGHT, VENTILATION WAS NOT INTERRUPTED. THE AREA HAD BEEN BOLTED WITH 6' REBAR TENSION BOLTS.