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Q. MOUND SLOPE DTH &LENGTH Landslope> 1% slope (landslbpe greats than 1%) .tis`' 1 r 1. Downslope absorptio width= absorption width (F) 3 s. r � �,ls4•T�.ou minus rock layer width 2) 4)` ti `` 'Aa, i -an Su,d i ft y'v,A' , ,� , (,.r ft- l0 ft= t i ft sepantlon_�ft ._•_._.. M d nod) Roc igid lhj D2) o ff) 2. Calculate mound size r.. e UPSLOPE • a. Depth of clean sand fil at upslope edge of A t_kmfiWldn.saad(F • rock layer = 3 ft minus th distance to restricting layer (Cl) -4,I 3ft- o ft= _ b. Mound height at the u slope edge of rock o-34SLOPE MULTIPLIER TABLE layer= depth of clean san for separation (G2a) Land UPSLOPE DOWNSLOPE Slo , multiplies for various multiaPpliers for various at upslope edge plus dep of rock layer (1 ft) ins slope ratios opt ratios plus depth of cover (1 ft) 3:1 4:1 5:1 6:1 7:1 8:1 3:1 4:1 5:1 6:1 7:1 3 ft+ 1ft+ lft= •0 ft 0 3.0 4.0 5.0 6.0 7.0 8.0 3.0 4.0 5.0 6.0 7.0 c. Upslope berm multipli r based on land slope 1 2.91 3.85 4.76 5.66 6.54 7.41 3.09 4.17 5.26 6.38 7.53 A•c,l (see Figur D-34) 3'-) 2 2.83 3.70 4.54 5.36 6.14 6.90 3.19 4.35 5.56 6.82 8.14 d. Upslope width= berm multiplier(G2c) times 3 2.75 3.57 4.35 5.08 5.79 6.45 3.30 4.54 5.88 7.32 8.86 u slo a mound hei ht (G b): 4 2.68 3.45 4.17 4.84 5.46 6.06 3.41 4.76 6.25 7.89 9.72 P P g 5, CD 3.33 4.00 4.62 5.19 5.71 3.53 4.4P 6.67 8.57 10.77 P•lol x 5.0 ft = 1 ft 6 2.54 3.23 3.85 4.41 4.93 5.41 3.66 3.26 7.14 9.38 12.07 DOWNSLOPE 7 2.48 3.12 3.70 4.23 4.70 5.13 3.80 5.56 7.69 10.34 13.73 e. Drop in elevation = roc , layer width (D2) times 8 2.42 3.03 3.57 4.05 4.49 4.88 3.95 5.88 8.33 11.54 15.91 percent landslope (C5) + 110 9 2.36 2.94 3.45 3.90 4.30 4.65 4.11 6.25 9.09 13.04 18.92 Jo ft x S (Yo+ 100= • ' ft 10 2.31 2.86 3.33 3.75 4.12 4.44 4.29 6.67 10.00 15.00 23.33 f. Downslope mound hei: t= depth of clean 11 2.26 2.78 3.23 3.61 3.95 4.26 4.48 7.14 11.11 17.65 30.43 sand for slope difference (1I2e) at downslope 12 2.21 2.70 3.12 3.49 3.80 4.08 4.69 7.69 12.50 21.43 43.751 rock edge plus the mound , eight at the upslope edge of rock layer G2b) S.0 ft+ •S ft= ft g. Downslope berm multiplier based on percent land slop S.0 (see figure 10-34) • + Iv , , - 88 r .r h. Downslope width = do lope multiplier1 Upalop�,�Vidth(G2d) (G2g) times downslope mo , d height(G2f) 5� i..)) 5•o X S•S ft= q.‘8 ft 1 Upd9ye width(G2d) Rock Bed +U9��rdth(G2d) i. Select the greater of G1 • d G2h as the downslope width: aS ftnat wtdth(G ) 31, ft j. Total mound width is the urn of upslope Absorption Width(P) ) l width (G2d) width plus roc layer width (D2)plus downslope width G2i) Total Length(G2k) I►`, ft ) 3 ft+ /0 ft+ a ft= __.6 ___ft k. Total mound length is the sum of upslope width (G2d) plus rock layer length (D3) .lus upslope width (G2d) 13' ft+ (-2. ft+ )3I 1 = Z$ feet 1,s' (,Z' zs- i i B Final Dimensions: I hereby certify that I have completed this work in accordarlce with applicable ordinances, rules and laws. g . (signature) 3 g'14 (license#) S-9-0 4 (date)