A NEW ROOF FALL OCCURRED AT 51XCUT ON THE 1ST MAINS NORTH BELTLINE. THE FALL GENEREATED OUTO F THE RETURN SIDE XCUT ONTO THE BELTLINE WALKWAY THE REST OF THE ROOF IN THE INTERSECTION SETTLED DOWN ON TOP OF THE BELT. CAUSE OF THIS FALL WAS BEAM FAILURE CREATED BY BOLTS OVERTIME. AREA BOLTED W/8'BOLTS & HAD 3FT BEAMS SPOTTED IN INTERSECTION. SIZE OF FALL 20'X20'X1'-8' HGIH