THE ROOF FALL OCCURRED 4 BLOCKS OUT BY DUMP POINT ON 2 NORTHEAST PANEL AT SPAD 4720 IN THE #4 ENTRY. WE REROUTED OUR HIGH VOLTAGE CABLE AND OUR SECONDARY ESCAPEWAY TO THE #3 ENTRY. WE CRIBBED OFF ALL ACCESSIBLE ENTRY WAYS AND DANGERED OFF AREA. FALL DIMENSIONS 45' LONG BY 18 1/2' WIDE BY 6' HIGH.