Laserfiche WebLink
SURFACE OF <br /> COMPETENT <br /> MATERIAL <br /> \ \ COMPACTED FILL /10 <br /> TYPICAL BENCHING \ / <br /> \_ _/ <br /> \ REMOVE UNSUITABLE <br /> O MATERIAL <br /> SEE DETAIL BELOW <br /> INCLINE TOWARD DRAIN <br /> AT 2% GRADIENT MINIMUM <br /> DETAIL <br /> ------------- <br /> MINIMUM 9 FT PER LINEAR FOOTMINIMUM 4" DIAMETER APPROVED <br /> OF APPROVED FILTER MATERIAL PERFORATED PIPE (PERFORATIONS <br /> DOWN) <br /> 6" FILTER MATERIAL BEDDING <br /> 14" <br /> MINIMUM ol <br /> FILTER MATERIAL TO MEET FOLLOWING APPROVED PIPE TO BE SCHEDULE 40 <br /> SPECIFICATION OR APPROVED EQUAL: POLY-VINYL-CHLORIDE(P.V.C.)OR <br /> APPROVED EQUAL. MINIMUM CRUSH <br /> SIEVE SIZE PERCENTAGE PASSING STRENGTH 1000 psi <br /> 1" 100 PIPE DIAMETER TO MEET THE <br /> FOLLOWING CRITERIA, SUBJECT TO <br /> 3/4. 90-100 FIELD REVIEW BASED ON ACTUAL <br /> GEOTECHNICAL CONDITIONS <br /> 40-100 ENCOUNTERED DURING GRADING <br /> NO.4 25-40 LENGTH OF RUN PIPE DIAMETER <br /> NO. 30 18-33 INITIAL 500' 4" <br /> NO. 8 5-15 500'TO 1500' 6" <br /> NO. 50 0-7 > 1500' 8" <br /> NO. 200 0-3 NOT TO SCALE <br /> TYPICAL CANYON SUBDRAIN DETAIL <br /> STANDARD SPECIFICATIONS FOR GRADING <br /> Page 14 of 26 <br />