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� G. DOWNSLOPE BERM WIDTH si°�:= �°°u 1' ,_- 1. If landslope is 1% or more, ::. subtract rock layer width from adsorption width ` ` R�1, R�gtip.�. , i ,1;+ t to obtain minimum downslope berm toe .a�s�►a ;�. � , , - '::•.:: b..Topsoil �_ft-.1�ft = / d ^ feet ac�.�sou 2. Calculate Minimum mound Size a. Determine depth of clean sand fill at u�io�wam ��►�wd�n upslope edge of rock layer: . RO��d� Absorption Width Separatiort 3' -�ft=�feet b. Add depth of clean sand for separation (2a) at upslope edge, depth of rock layer (1 foot) to depth of cover (1 foot) to find the mound height at the upslope edge of rock layer; �_ft + lft + lft =�_feet �'� c. Enter table with landslope and upslope berm , � vpgi�e Width ratio. Select berm multi lier of �,� � ` ' � �r�*'°�*`� d . ' P ' Upslo e Width '��o, ��Y� �k� �kenke�Q p :Upslope Width .�''.+�� Width o ��.e P'..$a�Or4 L� d. Multiply berm multiplier by upslope mound � � +�� ,�, � �,ana�dk�o$. height to find upslope berm width: ,� ' ' ��°��'�� p " " ��$°�°Q e � , � x �� _ �_feet � • e. Multiply rock layer width by � �� ' ` ° Downslope W�dth ?� landslope to determine drop in elevation; `� � , ' ' Absorphon W�dth �,� , � i v x /a %= 1 0 0= 1, � feet r...: �<. t , 1 ; r .,:. .. .,. ,� ` , . _ f. Add depth of clean sand for slope Totai�n�, �� difference (2e)at downslope edge,to �•� the mound height at the upslope edge of rock layer (2d) to find the downslope height; 3 ft + I .�. ft= ��i feet g. Enter table with landslope and downslope berm ratio. Select berm multiplier of �� 5 h. Multiply berm multiplier by downslope mound height to get g�SLOPE MULTIPLIERS downslope berm width: `i,.� X �.�:° _ ,?,a feet `'�a '� �,�' " ��O I,yud DOWNSLOPE UPSLOPE 1. COTTI are the values of ste G.1 �o berm multlplie�s tor various berm multlpiiers for various P P -�- in 96 berm dope ratlos berm slope ratios and Step G.2h�_-�-�� ' Select the greater of the two values as the ��► downslope berm width; a�' feet o s.o a.o s.o 6.0 �.0 3.o a.o s.o 6.0 �.o a.o j. Total mound width is the sum of 1 3.0� a.i� s.26 6.38 �.ss z.9i s.as a.�b s.� 6.sa �.ai upslope berm (G.ZCl� 2 3.19 4.35 ' S.56 6.82 8.14 2.83 3.70 4.54 536 6.14 6.90 width plus rock layer width(D.2� 3 3.30 4.54 5.88 732 8.86 2.75 3.57 4.35 5.08 5.79 6.45 4 3.41 4.76 6.25 7.89 9.72 2.68 3.45 4.17 4.84 5.46 6.06 plus downslope berm width(G.21�� S 3.53 5.00 6.67 8.57 10.77 2.61 3.33 4.00 4.62 5.19 5.71 �_ft+�_ft+ a 7 ft= ys feet 6 3.66 5.26 7.14 938 12.07 2.54 3.23 3.85 4.41 4.93 5.41 IC. Total mound length is the sum of upslop� 7 3.80 5.56 7.69 l0.34 13.73 2.48 3.12 3.70 4.23 4.70 S.13 berm width (G.2d) plus rock layer length(D.3) 8 3.95 s.ss 833 ii.sa is.9i z.a2 3.03 3.57 a.os a.a9 a.sa plus upslope berm width(G.ZC�� 9 4.11 6.25 9.09 13.04 18.92 2.36 2.94 3.45 3.90 4.30 4.65 I � ✓ � � �+ <L ft+ � �}_ �O` feet 10 4.29 6.67 10.00 15.00 2333 231 2.86 333 3.75 4.12 4.44 '� «`,'e_ �;� S`D � v �'j v 1 I 4.48 7.14 I 1.11 17.65 30.43 2.26 2.78 3.23 3.61 3.95 4.26 l2 4.69 7�6. ' 12.30 21.43 43.75 2.21 2.70 3.12 3.49 3.80 4.08 Final Dimesions. ott:The product of the multiplier end the hei��ht results in the horizontal distance to where the rm meen the od ind let�tlope EzamPle:Height at uPper edge of rock layer is 3A feet,rcek y� ayer is 10 feet wi� land d is 6'b and berm a(ope raao is 4:1.Upslope berm width is 3.23 x X 6 .0�9.7 ft;he�' ht at lowac e�e of rock layer is 3.0+10 x 0.6=3.6 ft and downslope berm wid � s5.26x3.6�I8.9R.