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18" Min. <br /> o 0 o 0 o o 0 <br /> 0o o o �O- 0 - .0o <br /> 0 0� ° o ��� ° B <br /> 0 00 P. <br /> ° oo <br /> o <br /> 0 0`0o oo �o 0 <br /> o o o <br /> 0 0 0�0oo o 0 o 0 0 6 a <br /> 0 0 0 <br /> 0 0 0 0 � <br /> 0 oo % Oo0oo <br /> oo o o �0 ° <br /> 00 oo o o o <br /> 0 00 00000 o <br /> ° o o 0 o Structural <br /> o °o o o o 0 <br /> o 0 <br /> 00000 ° ��� <br /> Fill <br /> 00 <br /> 0o o o g <br /> 8 o <br /> oo o oo 00000 o o <br /> o po <br /> 0oo0 ° o o0 <br /> o 0 0 o O o 0 00 <br /> 0 <br /> 0 00 0 0 8 <br /> o0 a o 0 0 Ooo. 0 0 �o <br /> o o 0 o 0 •r.f• <br /> •r <br /> .r <br /> ti• <br /> .ti.ti. <br /> Perforated Rigid Drain Pipe <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 /> Y <br /> po Solutions <br /> oo O <br /> 0 00 0o Free-draining Structural Backfill eotechnicaIFngineering,Construction <br /> �. <br /> servation/Testing and Fnvironmental Services <br /> •s•r•r•r• <br /> .r:}}0202 1-inch Drain Rock Retaining Wall Drainage Detail <br /> ti•ti•ti•ti <br /> Benton Square <br /> Everett, Washington <br /> Drwn. MRS Date 03/02/2022 Proj. No. 7852.01 <br /> Checked AZS Date Mar. 2022 Plate 3 <br />