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' G. � MOUND SLOPE WIDTH & LENGTH Landslope > 1% slope `; - (landslope greater than 1%) o„«,• - �. Downslope absorption width = absorption width (F) ; o.r o��'� � 6"Topsoil � minus rock layer width(D2) ��,�. _ Clean Sand `ft ?._� ft- [ a ft = �G ft Pa�no� f� .,. ..,, -•-•-•- Reatn<nn�Layer Upslope Width(G2d) Rock Width(D2) Downalopa Width(G2i) 2. Calculate mound size " " " UPSLOPE a. Depth of clean sand fill at upslope edge of pb�orption Wid(eh-Sand(F� rock layer =3 ft minus the distance to restricting layer (C1) 3ft-_�_ft= / ft b. Mound height at the upslope edge of rock D-34: SLOPE MULTIPLIER TABLE layer = depth of clean sand for separation (G2a) cana UPSLOPE DOWNSLOPE Slo e multiplieis for various mutti liers for various at upslope edge plus depth of rock layer (1 ft) �� slope rados s�ope ratios plus depth of cover (1 ft) 3:1 �:1 s:� 6:� �:� 8:� 3:� {:� s:� b:� �:� / ft + 1ft+ lft - � ft o s.o a.o s.o 6.0 �.o s.o s.o a.o s.o 6.0 �.o c. Upslope berm multiplier based on land slope 1 291 3.85 4.76 5.66 6.54 7.41 3.09 4.17 5.26 6.38 7.53 3 r�Z (see figure D-34) Z =.83 3.70 4.54 5.36 6.14 6.40 3.19 4.35 5.56 6.82 8.14 3 2.75 3.57 4.35 5.08 5.79 6.45 3.30 4.54 5.88 7.32 8.86 d. Upslope width = berm multiplier (G2c) x 4 2.68 3.45 4.17 4.&i 5.46 6.06 3.41 4.76 6.25 7.89 9.72 upslope mound height (G2b): ; 2.61 3.33 4.00 4.62 5.19 5.71 3.53 5.00 6.67 8.57 30.77 ��)2 X � � _�lt 6 L5�1 313 3.85 4.41 4.93 5.41 3.66 5.26 7.14 9.38 1207 DOWNSLOPE 7 Z,qg � 3.i0 4.23 4.90 5.13 3.80 5.56 7.69 10.34 13.93 e. Drop in elevation = rock layer width (D2) x g 242 3.03 3.57 4.05 4.49 4.88 3.95 5.88 8.33 11.54 15.91 percent landslope (CS) = 100 9 Z36 2.94 3.45 3.90 4.30 4.65 4.11 6.25 9.09 13.04 18.92 ' 0 lt X � % T �.�0 = ` � lt 10 2.31 2.86 3.33 3.75 4.12 4.94 4.29 6.67 10.00 15.00 2333 f. Downslope mound height - depth of clean 11 2v.6 Z^3 3.23 3.61 3.95 4.26 4.48 7.14 11.11 17.65 30.43 sand for slope difference (G2e) at downslope � Z-=1 270 3.12 3.49 3.80 4.08 4.69 7.69 12.50 21.33 43.75 rock edge plus the mound height at the upslope edge of rock layer (G2b) 3 ft +�ft= 3 .7 ft g. Downslope berm multiplier based on percent land slc� S• '� (see figzcre D-34) h. Downslope width = downslope multiplier =� UPs�ope wld�hc�fd, (G2g) times downslope mound height (G2 fl i �•7� X 3•� ft - �Q ft 'm - Rock Bed Upslope Width(G2d) � Upslope Width(G2d) Width(D2) K i. Select the greater of G1 and G2h as the 3 ``�'g`��3, downslope width: Z�' ft � : �W�iope w�au,�czc> F� , � .. . Absorptlon Width(F� -- � �. Total mound width is the sum of upslope �y width (G2d)width plus rock layer width : (D2) plus downslope width (G2i) Total Length(G2k) Ft �_ft+ 1 o ft+ �-c ft = �1. ft k. Total mound length is the sum of upslope width (G2d) plus rock layer length (D3) plus upslope width (G2d) q ft+ �� ft + 9 ft = 78 feet Final Dimensions: x I hereby cerrify at I hav co eted this work in accordance with applicable ordinances, rules and laws. ��d�a� � 5 license# � �� date -c. (signature) ( ) ( )