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See detail belorv <br />BEDROCK <br />Typical <br />benching NCIITE; Do]r,r]stream Z0' of <br />pipe at outlet shall be <br />non-perforated' <br />-7/ <br />\\ <br />PROPOSED CChIPACTED FILL ,/,/ <br />Natural gpowrd / <br />Colltn itrn and <br />\ Alluvirsrr Removal\\\\ <br />t- a-- <br />-.- <br />For runs of .500 feet or more use 6-inch diarneter pipe. <br />Filter l,laterial+{inimum of nine <br />cubic feet per foot of pipe. See <br />Plate B- 4 . 3 for requi red gradation. <br />In lieu of filter material use grEI: <br />vel encased in filter fabric <br />(}.{irafi 140 or eqtul) .Minimr.un 4 -inch- diameter, asphal t- coated rnetal <br />or FVC or ABS Schedule 40 with a cnrshing <br />strength of at least 1000 pourrds , _h".th -ninimmr of 8 uniformly spaced perforations <br />per foot of pipe, installed with perfoTations-on bottom ol pipe as shonn on Plate B- 4 .2 <br />a <br />a <br />a <br />TYPICAL CANYON SUBDRA]N <br />}IINIMUM STANDARD GRADING SPECIFICAT]ONS <br />d. o. GYoDs,rnc <br />PLATE B -'.I <br />/ <br />\ <br />aa <br />a <br />a <br />a <br />a <br />a <br />aaa <br />a <br />a <br />raa <br />ta