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Rockery Detail <br />N TG . <br />Grade <br />i2" 1 Min. <br />0 <br />a <br />111 <br />Rockery <br />Minimum <br />lleight (H) <br />Rock Wldih (8) <br />In Feet <br />In Feet <br />< 5 <br />1-1/2 <br />5-7 <br />2 <br />7-10 <br />9 <br />6-Inch Zone of Ouarry Soalla <br />1-fact Impermeable Soil <br />Dense Nehrai Soils <br />Slope as necessary for <br />Stability during Construction <br />Filter Fabric It only Quarry <br />spans are used as drainage <br />backtlll <br />Well -Graded Sand and Gravel <br />slnYlar to 1964 WSDO7 Standard <br />Specification 9-03.12(2) <br />Gravel Backllll for Walls <br />Minimum 6-inch•dlameter <br />Perforated Draln pipe with <br />suitable outlet <br />Place Rock on Firm undl+lurbed soils <br />or Compacted Fill <br />s) <br />i <br />