NORTH MAINS #16 BLOCK, #6 HEADING - 4-WAY INTERSECTION-8 FT HIGH X 18 FT WIDE X 20 FT LONG. TYPE OF SUPPORT: 6 FT RESIN BOLTS, 6"" X 16"" PLATES, ROOF MATS. ROOF FALL CLEAN-UP PLAN DEVELOPED AND POSTED. FALL WILL BE CLEANED UP AND SUPPORTED ACCORDING TO ROOF CONTROL PLAN.