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G. ' DOV�NSLOPE BERM WIDTH s1�:_ � co��r�� 1. If landslope is 1% or more, subtract rock layer width from adsorption width ��' .9- �=��, _ :' ; C Rock 1 �o po to obtain minimum downslope berm toe c�e�,e�,a�� , ��ft-�p�ft= �_feet atural Soil �°-C> 6 Topsoil 2. Calculate Minunum mound Size a. Determine depth of clean sand fill at u�l� wa�n Dow�lope Width upslope edge of rock layer: ��wd� A� ; nwa�n Separation 3' - l, � ft = I.3 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; � -3 ft +'lft+ lft = 3•3 feet _ � _ c. Enter table with landslope and upslope berm :uPS�w�acn : : ratio. Select berm multiplier of 3,3� ;: � ` ' -: Ci. Multiply berm multiplier by upslope mound uPs}°��'"'a� "°�°'pQ'�°•` Rocic Bed ?o;ToaA,•.:n ;.Upslope Width , e:�.r.v Qt Width e e-.e.e o 0 �_ �lD��t�6aQ4.o�a r� �e,D6e�4'D a _1.L_ height to find upslope berm width: `�L a;°a`°g°'a¢o p�„�.n°'c;v;:,a; � �� x c � _�_feet � `�.. _ • � ,. . e. Multiply rock layer width by „ �. � . ' � : landslope to determine drop in elevation; �' A�Orpaon Width�'� �(1 x � %+ 100 =�feet .;:.r ..._: .' _...:. ...:,: ,�;..: .. . .. . ,r�.:. , .:: _ . .,:...: :......�. . �� . .:�:. .. . . ..:.: ... �. '. � . . . . . f. Add depth of clean san or s ope roc�i�gct, 1,�� difference (2e)at downslope edge,to the mound height at the upslope edge of rock layer (2b) to find the downslope height; �? ' ft + � ft= ".1. v/ feet ,,, g. Enter table with landslope and downslope berm ratio. Select berm multiplier of �- � h. Multiply berm multiplier by downslope mound height to get downslope berm width: ;-, �� x 3•`� _ `'i feet s�si.orE Mvi.�i.�xs i. Compare the values of step G.1�Z and Step G.�'l�= Iand DOWNSLOPE UPSLOPE Slope Derm multiplkrs tor varioas berm mnitlplias for various Select the greater of the two values as the +o% ��o��n� n«m s�o�ne� downslope berm width; /� feet j. Total mound width is the sum of 4• 5• 4• 5• 7• •I upslope berm (G.2d) 0 3.o a.o s.o 6.0 �.o s.o a.o s.o 6.0 �.o s.o I 3.09 4,17 3.26 638 7.53 2.91 3.85 4.76 5.66 6.54 7.41 width plus rock layer width (D.2� Z 3.19 435 5.56 6.82 8.14 2.83 3.70 4.54 536 6.14 6.90 plus downslope berm width(G.21�� 3 330 4.54 5.88 '732 8.86 2.75 3.57 435 5.08 5.79 6.45 �_ft +�ft+ I", ft = � D feet 4 3.41 4.76 6.25 7.89 9.72 2.68 3.45 4.17 4.84 5.46 6.06 k. Total mound length is the sum of upslope 5 3.53 ,s:oo 6.6� ss� io.r� z.6i 3.s3 a.00 a.bz s.i9 s.�i berm width (G.2d) plus rock layer length (D.3) 6 3.66 s.s6 �.ia 938 i2.m z.sa 3.23 s.ss a.ai 4.93 s.ai plus upslope berm width (G.2d); '1 3.80 5.56 7.69 1034 13.73 2.48 3.12 3.70 4.23 4.70 5.13 ,`� ft + (�Z- ft + 1 1 ft- �� feet $ 3.95 5.88 833 11.54 15.91 2.42 3.03 3.57 4.05 4.49 4.88 � �� ` -} � °''� / C O 9 4.11 6.25 9.09 13.04 18.92 236 2.94 3.45 3.90 4.30 4.65 �; . . 10 4.29 6.67 10.00 IS.00 2333 231 2.86 3.33 3.75 4.12 4.44 Final Dimensions. �1 4.48 7.14 ll.11 17.65 30.43 2.26 2.�8 3.23 3.61 3.95 4.26 12 4.69 7.69 12.50 21.43 43.75 2.21 2.70 3.12 3.49 3.80 4.08 / � X � Z l�l��