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TYPICAL FOOTING DRAIN <br />Conipacled soil general backfill, or <br />structural fill where applicable (refer <br />to notes below) <br />Non-sroven geotextile filter <br />fabric (Miraft 140 NL, or <br />equivalent), wrapped around <br />the drain rock <br />Washed drain rock <br />Slope the surface to drain <br />asrayfrom the stall <br />FLOOR SLAB <br />CAPILLARYBRE,4K <br />Mininn nt 4-inch diameter <br />slotted or perforated PVC pipe <br />(perforations facing dou n); lay <br />pipe to have sufficient gradient <br />totrard discharge <br />. , FOOTING + <br />NOT TO SCALE <br />NOTES: <br />1.) Perforated or slotted rigid PVC pipe should be tight jointed and laid with perforations or slots down, and with <br />positive gradient toward discharge location(s). The pipe should be placed at or slightly above the elevation of <br />the bottom of the footing. Do not replace rigid PVC pipe with flexible corrugated plastic pipe. <br />2.) Do not connect other drainage tines to the footing drain lines. Drain line cleanouts should be installed at <br />appropriate locations to allow inspection and maintenance of the lines after construction. <br />3.) If the backfill will support sidewalks, driveways, patios, or other structures, it should be compacted to at least <br />90%of its maximum dry density based on the Modified Proctor test method, except that the top 12 inches of <br />the backfill should be compacted to at least 95% of the maximum dry density. <br />4.) The geotextile filter fabric should be placed around the drain rock as shown, and not wrapped directly around <br />the pipe. <br />Ask <br />Group Northwest, Inc. <br />oeotecta*31ftnws, QWbg1m,a <br />roviranuomw Sciwists <br />TYPICAL FOOTING DRAIN <br />PROPOSED RESIDENCE ADDITION <br />2505 57TH ST SW <br />EVERETT, WASHINGTON <br />SCALE: NONE I DATE: 8/28/2019 1 MADE: BF I CHKD: WC I JOB NO. G-4971 I PLATE 3 1 <br />