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I <br /> I <br /> I NO ROADWAY,PARKING LOTS <br /> OR BUILDING FOOTINGS <br /> IN THIS AREA <br /> I MIN 1' <br /> 2(OR FLATTER) <br /> 1 I / <br /> ,Qn / <br /> 1 Iv <br /> / <br /> #.� 4IIIN 1'WIDE LAYER OF 2"-4"QUARRY <br /> x_.,....,r,, �SPACES ADJACENT TO ROCKERY <br /> N6 � // 1 <br /> ' 4 / STABLE CUT FACE IN NATURAL MATERIAL <br /> I- a ' , (SEE NOTE 5) <br /> 0C t / <br /> w own{ / <br /> e. `O/ 1"(OR LESS)DIAMETER WASHED GRAVEL <br /> �d:: <br /> ,,,, MIN 6"COVER OVER PIPE, <br /> 2"GRAVEL UNDER PIPE <br /> I12" 's -"- "'- <br /> �S� 1l/•G•�I <br /> MIN 4"DIAMETER PERFORATED <br /> I FIRM UNDISTURBED SOIL(SEE NOTE 2) RIGID PVC PIPE.SLOPE TO <br /> DRAIN TO APPROVED OUTLET. <br /> INOTES: <br /> 1. ROCKERIES HIGHER THAN 5'SHALL BE CONSTRUCTED OF ROCKS OF GRADUATED SIZES FROM 5-MAN TO 3-MAN, <br /> FROM BOTTOM TO TOP.ROCKERIES OF 5'OR LOWER SHALL BE CONSTRUCTED OF 4-MAN TO 3-MAN,FROM <br /> IBOTTOM TO TOP. <br /> 2. INSPECTION OF SUBGRADE,PLACEMENT OF BASE COURSE AND DRAINAGE,AND FINISHED ROCKERY BY ENGINEER <br /> IS REQUIRED. <br /> I3. ROCK SHALL BE SOUND AND HAVE A MINIMUM DENSITY OF 160 POUNDS PER CUBIC FOOT. <br /> 4. THE LONG DIMENSION OF ALL ROCKS SHALL BE PLACED PERPENDICULAR TO THE WALL.EACH ROCK SHOULD BEAR ON <br /> I TWO ROCKS IN THE TIER BELOW. <br /> 5. ROCKERIES ARE EROSION-CONTROL STRUCTURES,NOT RETAINING WALLS.NATURAL MATERIAL MUST BE STABLE AND <br /> FREE STANDING IN CUT FACE.MAXIMUM HEIGHT OF 3 FEET FOR ROCKERIES FACING FILL SOILS. <br /> 1 6. SEE TEXT OF LETTER FOR ADDITIONAL RECOMMENDATIONS. <br /> I <br /> Rock Lb. Avg.Dimension(In.) <br /> 1-Man 100-300 12 to 18 <br /> 2-Man 300-800 18 ton <br /> z 3-Man 800-1500 28 to 36 <br /> 11 4-Man 1500-2200 36 to 48 <br /> c2 5-Man 2200-4000 48 to 54 <br /> I N <br /> S <br /> A <br /> 0 <br /> U <br /> i.I y Associated Earth Sciences, Inc. UNREINFORCED ROCKERY DETAIL FIGURE 3 <br /> Y KREBS PROPERTY DATE 2/07 <br /> o .`` i''`� 4i1, EVERETT,WASHINGTON PROJECT NO. KE070023A <br /> I8 <br />