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G. MC�UND SLOPE WIDTH & LENGTH Landslope > 1°yo slope <br /> (landslope greater than 1%) o��r,. , <br /> 1. Downslope absorption width = absorption width (F) �:;�a�a ba�g o�<: � <br /> minus rock layer width (D2) . �,��;S�,d,�h ;; 6"Topsoil <br /> �r.�. <br /> �(�� �� ft- 1n ft = ��ft parallon �•� h �.� -.�.� <br /> . Re�aictlng Lay. <br /> UpsbveWidthkQC) Rock W dthrD2) �"'*'sbpe Idth(�2p <br /> 2. Calculate mound size �� <br /> UPSLOPE <br /> a. Depth of clean sand fill at upslope edge of <br /> Abso � Wid'th•Sv�d(� � <br /> rock layer = 3 ft minus the distance to restricting layer (C1) <br /> 3ft- ) - �� ft = I -�� ft <br /> b. Mound height at the upslope edge of rock D-34: SLOPE MULTTPLIER TABLE <br /> layer = depth of clean sand for separation (G2a) L�,a UPStOPE DOWNSLOPE <br /> Slo e multipliers for various multi liers for various <br /> at upslope edge plus depth of rock layer (1 ft) �� slope nbos SPope ntios <br /> plus depth of cover (1 ft) 3:1 4:7 5:1 6:1 7:1 8:1 3:1 4:1 5:] 6:1 7:7 <br /> l . �ft + 1ft + 1ft - 3 - J�ft o s.o a.o s.o 6.0 �.o s.o s.o a.o s.o b.o �.o <br /> c. Upslope berm multiplier based on land slope 1 2.91 3.85 4.76 5.66 6.54 7.91 3.09 4.17 5.26 6.38 7.53 <br /> ? . b� (see figure D-34) Z 2•83 3.70 4.54 536 6.14 6.90 3.19 4.35 5.56 b.82 8.14 <br /> 3 2.75 357 4.35 5.08 5.79 6.45 3.30 4.54 5.88 7.32 8.86 <br /> d. Upslope width = berm multiplier (G2c) times <br /> 4 2.68 3.45 4.17 4.84 5.46 6.06 3.41 4.76 6.25 7.89 9.72 <br /> upslope mound height (G2b): • 5 2.61 3.33 4.00 �.62 5.19 5.71 3.53 5.00 6.67 8.57 10.77 <br /> � . O� X � � � ft =.�_ft 6 2.54 3.23 3.85 4.41 4.93 5.41 3.66 526 7.14 9.38 12.07 <br /> DOWNSLOPE 7 2.48 3.12 3.70 4.Z3 4.70 5.13 3.80 5.56 7.69 ]0.34 13.73 <br /> e. Drop in elevation = rock layer width (D2) times 8 2.42�3.03 3.57 4.05 4.49 9.88 3.95 5.88 8.33 11.54 15.91 <br /> percent landslope (C5) = 100 9 2.36 2.94 3.45 3.90 4.30 4.65 4.11 6.25 9.09 ]3.04 18.92 <br /> J� ft X � % = 1�� _ � � it 10 2.31 2.86 3.33 3.75 4.12 4.44 4.29 6.67 70.00 15.00 23.33 <br /> f. Downslope mound height = depth of clean 11 2.26 2.78 3.23 3.61 3.95 4.26 4.48 7.19 11.11 17.65 30.43 <br /> sand for slope difference (G2e) at downslope u 2�1 Z.�o s.�z 3.99 3.80 a.os 4.69 7.69 �z.so z�.43 43.75 <br /> rock edge plus the mound height at the <br /> upslope edge of rock layer (G2b) <br /> � • � ft + , � ft = y �3 ft <br /> g. Downslope berm multiplier based on percent land slop , <br /> S. � � (see figure D-34) - � � <br /> h. Downslope width = downslope multiplier `I UpslopG Width(G fd) <br /> (G2g) times downslope mound height (G2� y�' � � <br /> r .�/� X y ' � ft = �1 ft m Rock Bed Upslo e Width(G2d) <br /> `� � Ups�lqpe Width(G2d) Width(D2) �� . <br /> i. Select the greater of Gl and G2h as the � ' Length(D3) �.,u f` <br /> downslope width: a. � ft F'c Downslope Width(G2i) �� E� <br /> AbsorpNon Width(F)_�Z � <br /> j. Total mound width is the sum of upslope �� <br /> width (G2d) width plus rock layer width <br /> (D2) plus downslope width (G2i) Total Length(G2k) /J � f� <br /> ! 1 ft + /o ft + ��- ft = ��ft <br /> k. Total mound length is the sum of upslope width (G2d) <br /> plus rock layer length (D3) plus upslope width (G2d) <br /> /� ft + � ft + I l ft = ��D feet <br /> �, =� �� `�`� �' �S " � Final Dimensions: <br /> '� � x _/v `� A�� ` <br /> I hereby certify that I have completed this work in accordance with applicable ordinances, rules and laws. <br /> i �_ :' <br /> L'�----�/-�- �J_-� '. (signature) 3� � (license=) a -) �-1 -U ) (date) <br />