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' F <br /> CAMBER TRENCH FILL <br /> APPROX. 3' AT CENTER. <br /> 77, <br /> t REPLACE EXCAVATED MATERIAL - <br /> AND COMPACT TO 98% ' <br /> STANDARD PROCTER, - <br /> DENSITY, IN MAX. 8" UFTS.. = <br /> VARIES <br /> TRENCH SIDE SLOPE _ <br /> D BY _ BED PIPE IN SELECT MATERIAL <br /> SOIL CONDITIONS <br /> LANDONDI I MSHA EXCAVATED FROM TRENCH (HIGH <br /> REGULATIONS. 8" HDPE - PERCENTAGE OF FINES AND NO ROCK <br /> LARGER THAN 2-). CONSOLIDATE <br /> / BEDDING AROUND PIPE. <br /> 4' MIN <br /> 4 MIN i <br /> 4' DIA. SOLID WALL HDPE <br /> BEDDING DRAIN PIPE. <br /> 3'-d <br /> O2 PIPE TRENCH SECTION <br /> CROSS SECTION THRU DAM NO. 4 <br /> SCALP: 3/4" V-O' <br />