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G. DOWNSLOPE BERM WIDTH 2011."'' c°""11 <br /> 1. If landslope is 1% or more, , <br /> subtract rock layer width from adsorption width xo&1• <br /> to obtain minimum downslope berm toe CUlm S ttd K••;��� ,,rK ►N:�.+�� <br /> feet NahuWSad 4td*_ <br /> 2. Calculate Minimum mound Size <br /> a. Determine depth of clean sand fill atF0* Al <br /> U �' `� <br /> upslope edge of rock layer. •�p_ n � <br /> Separation Y - I•S ft = /�'_feet <br /> b. Add depth of clean sand for separation (2a) <br /> at upslope edge,depth of rock layer (1 foot) to depth of cover <br /> (1 foot) to find the mound height at the upslope edge of rock layer; <br /> 1. ft+•lft+ 1ft= 3 .S feet - - <br /> oto <br /> c. Enter table with landslope and upslope berm '-r' Upal�pe Wath <br /> ratio. Select berm multiplier of 3 %A.5' <br /> . ;> �' : ':r :,: ►a <br /> d. Multiply berm multiplier by upslope mound yU�� �. �o ' R°`1t"spa ' .� •.a.. Up,lope Wath <br /> LUmmmth <br /> ,. i'$ta' rpt Width �_ �tir�w.'. <br /> height to find upslope,berm width: <br /> feet):I, � :t •.rt Pd .o l.* r+���. �'ti777•',,,••""".�y+.:,'S\� n��! s.d•.3y n!* <br /> t f 1 !�h f( a •i�f L�Ac .( �, Yf( �tii �ii 7 a !. <br /> e. Multiply rock layer width by • �7 ''°� �" r `.,```•::._ `:" <br /> * L 1 .� • � '� WaailiW Wid ��f •c l�Y• }° v .. <br /> landslope to determine drop in elevation; t- h 1 ; Absorption wta <br /> 'S'•'.t� i i14 •<,•41/.1('4•/11yI•q 1 4::•.�y1 M,,,av•..• -. ., :•x.! i..�yj.•: .^,�';. <br /> x �, /a+100 = .feet -:. ...r, �;� .S, .S'ry <br /> •%:..:...it �•i f.:;t..af �A". 2. <br /> f. Add depth of clean sand for slope Tar�>.�t, <br /> difference (2e)at downslope edge,to <br /> the mound height at the upslope edge <br /> of rock layer (2b) to find the downslope height; <br /> ft+ ft= 3•-Ifeet <br /> g. Enter table with landslope and downslope berm ratio. Select <br /> berm multiplier of 9.17 (�, . <br /> h. Multiply berm multiplier by downslope mound height to get <br /> downslope berm width: <br /> -1?to x 3,2 = feet BERM SLOPEMULY'IpLIM <br /> i. Compare the values of step 6.1 ►,Z <br /> and Step G.2h j`7 3,5-f--)a' sjoMLiad 1� DOWNSLOPE for bum�u�,%.� <br /> Select the greater of the two values as the in% n��raaa °� rano <br /> downslope berm width; a:I ' feet <br /> j. Total mound width is the sum of <br /> berm (G.2d) 0 3.0 4.0 5.0 6.0 7.0 3.0 4.0 5.0 6.0 7.0 8.0 <br /> upslope 1 3.09 4.17 5.26 638 7.53 2.91 3.85 4.76 5.66 6.54 7.41 <br /> width plus rock layer width (D.2) 2 3.19 4.35 5.56 6.82 8.14 2.83 3.70 4.34 5.36 6.14 6.90 <br /> plus downslope berm width(G.2i); 3 3.30 4.54 5.88 7.32 8.86 2.75 3.57 435 5.08 5.79 6.45 <br /> ) :� ft+ m ft+ z a ' ft= 4%4 feet 4 3.41 4.76 7.89 9.n 2.68 .43 4.17 4.84 5.46 6.06 <br /> k. Total mound length is the sum of upslope 5 3.33 5.00 6.67 851 10.77 2.61 333 4.00 4.62 5.19 5.71 <br /> berm width(G-2d) plus rock layer length(D.3) 6 3.66 5.26 7.14 938 1207 2.54 3.23 3.85 4.41 4.93 5.41 <br /> plus upslope berm width(G.2d); 7 3.80 5.56 7.69 10.34 13.73 248 3.12 3.70 4.23 4.70 5.13 <br /> 1 Z ft+ q.1 ft+ )a. ft= /0k feet 8 3.95 5.88 8.33 11.54 15.91 242 3.03 3.57 4.05 4.49 4.88 <br /> a ::k" 73.1' V 9 4.11 6.25 9.09 13.04 18.92 236 2.94 3.45 3.90 4.30 4.65 <br /> 10 4.29 6.67 10.00 15.00 2333 231 2.86 3.33 3.75 4.12 4.44 <br /> Final Dimensions: 11 4.48 7.14 11.11 17.65 30.43 226 2.78 3.23 3.61 3.95 4.26 <br /> 12 4.69 7.69 12.50 21.43 43.75 221 2.70 3.12 3.49 3.80 4.08 <br />