t Slieet...stre€I1 level New York, NY Main entry/Stairs S561 3KS 1/4" = 1' 141" 10 inch walls 1 stair 8' 8' )4 'I' 1" tread + 7 ' riser Epts:ien Mail entry/Stairs measured 3/14/11 0 E 72st Street Street Level r- / 0" L L \ tv 2 stairs 9' 3"x1' l" tread 4-7" riser 3 sta ir 8' 4"u 1'1" trend