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1 1r'1lJIVVI 1 I AISLE 1 <br /> BEDDING <br /> _MIN TRENCH WIDTH SUITABLE PIPE DIAM. <br /> (SEE TABLE) -► FOUNDATION 12" - 48" <br /> (300mm - 1200rr <br /> 60" <br /> ICE WITH ASTM D2321 , "STANDARD PRACTICE FOR UNDERGROUND (1500mm) <br /> AND OTHER GRAVITY FLOW APPLICATIONS", LATEST ADDITION, * VEHICLES IN EXC <br /> EXTEND 1-0 THE CROWN OF THE PIPE. SOIL CLASSIFICATIONS TABLE <br /> IVB MATERIALS (MH, CH) AS DEFINED IN PREVIOUS VERSIONS OF <br /> :IALS. CLA% <br /> OF NATIVE FINES INTO BACKFILL MATERIAL, WHEN REQUIRED. PIPE DIA COMPA <br /> 12" 4' <br /> BLE, THE CONTRACTOR SHALL EXCAVATE TO A DEPTH REQUIRED (300mm) (12.1 <br /> .RIAL AS SPECIFIED BY THE ENGINEER. AS AN ALTERNATIVE AND 15" 4� <br /> BENCH BOTTOM MAY BE STABILIZED USING A GEOTEXTILE MATERIAL. (375mm) (12.E <br /> 18" 4z <br /> OR IV. THE CONTRACTOR SHALL PROVIDE DOCUMENTATION FOR (450mm) (13.z <br /> SHALL BE SPECIFIED BY THE ENGINEER IN ACCORDANCE WITH <br /> iNLESS OTHERWISE NOTED BY THE ENGINEER, MINIMUM BEDDING 24" 3� <br /> )Omm) DIAMETER PIPE; 6" (150mm) FOR 30"-60" (750mm-1500mm) (600mm) (11 .� <br /> VERT SHALL BE LOOSELY PLACED. PLEASE NOTE, CLASS IV 30" 3(, <br /> ICULT TO (PLACE AND COMPACT; USE ONLY WITH THE APPROVAL OF (750mm) (11 ., <br /> 36" 2f <br /> (900mm) (8.5 <br /> S I, II, III, OR IV IN THE PIPE ZONE EXTENDING TO THE CROWN OF THE 42" 3( <br /> TION FOR MATERIAL SPECIFICATION TO ENGINEER. MATERIAL SHALL ,n <br />