NORTH MAIN 25 BLOCK, #7 HEADING - 4-WAY, TRACK HDG. MMU 004. 12 FT HIGH X 20 FT WIDE X 20 FT LONG. TYPE OF SUPPORT: 6 FT RESIN - 6"" X 16"" PLATES, ROOF MATS, WIRE SCREEN, HINTZMANN JACKS & CROS S BARS. FALL DANGERED OFF, ADDITIONAL ROOF SUPPORTS SET AROUND FALL. FALL CLEAN-UP PLAN DEVELOPED & POSTED AT FALL.