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HomeMy Public PortalAbout382375 H 8" 42" or 48" 8 1/2" MIN. 1 TO 3 CEMENT TO SAND MORTAR MIX. (ALL BRICK STRUCTURES) 8" DOUBLE ROWLOCK 16" L 8" MIN. 8" MIN. p . o D NOTES: 1) INSIDE OF BRICK MANHOLES TO BE PLASTERED WITH 1/2" MIN. 1 TO 3 CEMENT TO SAND MORTAR MIX TO TOP OF LARGEST PIPE. 2) MANHOLE STEPS UNIFORMLY SPACED AT 16" C C. 3) THE MINIMUM INSIDE DIAMETER FOR THE RISER SECTIONS SHALL BE 42" FOR ALL STORM SEWERS. THE MINIMUM INSIDE DIAMETER FOR SANITARY SEWERS IS 48 INCHES. p" 0 C D O o. p 0. D. p . O v. po oD" l> 'oC p 'p" "p...DoD PLAN SECTION A  A KEYWAY CLASS "A" CONCRETE METROPOLITAN ST. LOUIS SEWER DISTRICT MANHOLE ON CONCRETE PIPE Standard Details of Sewer Construction 48" THRU 54" DIAMETER Dr. WSH/SAM SE WERS Ch. J.C.K. 2009 SHEET 13