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SIOPC OUTS1�. GRAD� AWAY f � � <br /> FROM STRUCTUR� FOp URAINAG � � � <br /> ����/ / EXTERIOR flETAINING WALL <br /> � / <br /> - •�' <br /> PAVEMENT OR 18 INCHES � �'O•• �� <br /> MIN. TAMPEO TOPSOIL '� S � I ' :��- DAMP PROOFING <br /> OH IMPERVIOUS SO1� - (�� S SS _°.�; <br /> � Z � ' � S 1e.. - <br /> min. <br /> G�NERAL FILL � � �:e+"• <br /> - SS �S { .: ;`. VAPOR BARRIE� <br /> _°:n» <br /> � � f jo.-a CONCRETE SAN� <br /> C lr:;. <br /> 'v:+'�: FLOOR SLAB <br /> � . WEEP HOLES - � L �:�? <br /> ' .�ec, - ' - b: ,�; �e;s�.y;.:.�.,�:' <br /> �"':i`• :��. : e.� 'e`,' _o:G'T'-��i•.'.a. <br /> ,. _ ..:a:��... <br /> SUfiDRAiN PIPE • ,I.�;�. <br /> :J: <br /> , ��� ORqINAGE SAND 3 GRAVEL . <br /> not to seale <br /> ib1.ATERIALS � NQTES <br /> 1. Drsinage Sand & Gravel Benesth <br /> SUBDRAIN PIP� Floor Slab Should Be Connected <br /> 4";blinimum Dia. Perforated Or Slotted Hydraulically To Subdrain Pipe. <br /> Concrete, M�tal, Asbestos-Cer�ent Or Use Of 2" Dia. Weeo Holes Is <br /> Plastic Pipe. Tight Jointed, Sloped To One Applicable Method. <br /> Drain (4"/100' min. slope}, �Jith <br /> Clean-Outs. 2. Subdrain Pipe Should Be Hedded <br /> Slotted Pipe-- 1/8" Max. Width Slots With A l�linimum Of 6" Of Drainage <br /> Perforated Pipe-- 3/ 16" to 3/S" Holes Sand & Gravel Surrounding The Pipe. <br /> 51ots. Or Perforations Preferentially <br /> � In Lower fIalf Of Pipe With Lower 3. Hackfill VGithin 18" Of V4a1}. Should <br /> � Quarter Segm�nt Solid For Water Flow.� $e Compacted With Hand-Operated <br /> I Equipment. Heavy Equipment Should <br /> DRAINAGF SAND & GRAVEL Not Be Used For Backfill, As Such <br /> To Meet W�ishingtoqState Specifications Operation.Could Inerease Lateral <br /> i Or The Following Gradation. Earth PrAssures And Possibly <br /> Dama�e The W all. <br /> Sieve Size Passin Bv Weight <br /> — �'— = — <br /> � I-1%2." 10a 4. All BackfiLT Shouid Be PiacEd Ir: <br /> ' 3/4" 70-9U Layers Not Exceeding 6" Loose <br /> 1(4" 30-60 Thickness And Densely Compacted_ <br /> No. 8' 20-50 Beneath Paved Or Sidewalk Areas, <br /> No. 30 g-3p Compact To At Least 95%. 14todified <br /> No. 50 3-12 Proctor MaximimDensity (ASTM: <br /> No. 200 0-I. 2 D1557, Method C?.' Otherwise <br /> (by wet sie••%:ng� (non-plastic) ' Compact To 90°Jo Minimum. <br /> SUBDRAIN �. BACKFILL SCHEME �� <br /> � BASEMENT WALLS "WI.T4 INTERIOR SLAFI ON GRADE <br /> , <br /> - s <br /> Ii�R . _ <br />