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18" Min. <br /> 111 <br /> 00 0 0 0 o o <br /> o ao <br /> . <br /> O �00 o0 o0 0 <br /> 0000 00°0 000 ;et): <br /> 0 00 <br /> 0 0 0 0 � 00 00 oO0 0Q0 <br /> 0 0 <br /> 0 0 000o 00 0 0 0 ao <br /> 00 0 0 0 0 <br /> 0 <br /> 0 0 0 —0 0 0 <br /> 0 . 0 <br /> o. o 0 000 0 o <br /> 0000 '' g o 0 <br /> 0 o. 00 0 <br /> 00 0 0 0 0 0. O o O 0 <br /> g if 00 0 0 o 0 Structural <br /> 000 �0 . 00o ° 0 c Fill <br /> 0 0 0 00 <br /> 08 0 00000 00 00 0 0 6 o <br /> 0 0 0 0 0 0 00 o 0 0 000 0 <br /> 0 O 00 2 <br /> 00 0 • <br /> C)o 0 0 00 0 0 0 00 <br /> 0 <br /> 0000 0 oOOo 0 0 o p 8 00 0 <br /> . 000 <br /> 0 e o 0 Oo00 0 00 0 <br /> 0 0 0 0 r•r• <br /> r•r•r•r•r <br /> v ir <br /> A ti••r�•L•ti• <br /> _,.., \ <br /> Perforated Rigid Drain <br /> 9Pipe <br /> NOTES: (Surround in Drain Rock) <br /> • Free-draining Backfill should consist <br /> of soil having less than 5 percent fines. <br /> Percent passing No. 4 sieve should be <br /> 25 to 75 percent. <br /> • Sheet Drain may be feasible in lieu SCHEMATIC ONLY- NOT TO SCALE <br /> of Free-draining Backfill, per ESNW NOT A CONSTRUCTION DRAWING <br /> recommendations. <br /> • Drain Pipe should consist of perforated, <br /> rigid PVC Pipe surrounded with 1-inch <br /> Drain Rock. <br /> LEGEND: _. <br /> " Earth . o.rth Solutions NWLLc <br /> 000° 0 Solutions <br /> 0 op 0 Free-draining Structural Backfill NWLLC fecatechnicaGEngneeringConstruction <br /> o p o <br /> ervation/Testing and Environmental Services <br /> ti•ti•1A•'. <br /> tiaS:Cti0ti 1-inch Drain Rock <br /> rL..:r.e.. Retaining Wall Drainage Detail <br /> Four Corners <br /> Everett, Washington <br /> Drwn. MRS Date 02/15/2019 Proj. No. 6516 <br /> Checked CGH Date Feb. 2019 Plate 3 <br />