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STANDARD <br /> ULTRA BLOCK UNIT <br /> 2.5'X2.5'X5' <br /> STANDARD <br /> ULTRA BLOCK UNIT <br /> 2.5'X2.5'X5' <br /> MIRAFI140N <br /> /—FABRIC OR EQUAL <br /> STRUCTURAL BACKFILL <br /> PER GEOTECHNICAL <br /> MIRAFI 140NREPORT <br /> FABRIC OR EQUAL <br /> STRUCTURAL BACKFILL <br /> PER GEOTECHNICAL <br /> REPORT <br /> 17.5'MAX <br /> 15'MAX <br /> 12 INCH WIDE <br /> DRAIN ROCK COLUMN <br /> 3/4"WASHED ROCK <br /> (,2%FINES) <br /> 12 INCH WIDE <br /> DRAIN ROCK COLUMN <br /> 3/4"WASHED ROCK <br /> (12%FINES) <br /> P ND P ND . <br /> 2.5'MIN 2.5'MIN <br /> V <br /> 4-INCH THICK%'CRUSHED <br /> 4-INCH THICK 5/"CRUSHED/ ROCK LEVELING PAD <br /> ROCK LEVELING PAD \ FIRM AND STABLE SUBGRADE FIRM AND STABLE SUBGRADE <br /> VERIFIED BY GEOTECHNICAL ENGINEER <br /> VERIFIED BY GEOTECHNICAL ENGINEER <br /> 20'ULTRA-BLOCK WALL <br /> NOT TO SCALE <br /> 17.5'ULTRA-BLOCK WALL Terra 17.5'-20'ULTRA BLOCK WALL DETAILS <br /> NOT TO SCALE POWDERMILL BUSINESS CENTER <br /> Associates, Inc. EVERETT,WASHINGTON <br /> Consultants in Geotechnical Engineering <br /> Geologvand pro Na.T-6241 <br /> Environmental Earth Sciences 1 Dale JUNE 2014 Figure 9 <br />