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G. MOUND SLOPE WIDTH &LENGTH Landslope > 1% slope (landslope greater than 1%) over ' 1. Downslope absorption width= absorption width (F) rA,u�'=�„Y. ha", it3s ?� 'Fl^ 6"Topsoll minus rock layer width (D2) �" p :'%:w'x"?'.1��„�.�:��`'..�'6��CIeanSand�• "�t�„rr��,�b �..�.� .:. .L_. a ::::.;a:�:...r..,.�y a;'�kt?Y it•yti�.Jt,l ' p.ratlo • it RnhiNns Lays Uq d g=d) Rock"hhD2) Dowmi d Mi) 2. Calculate mound size UPSLOPE a. Depth of clean sand fill at upslope edge of „e,,,p„ W,dtth.S-d(F) rock layer = 3 ft minus the distance to restricting layer (Cl) a 7 3ft- I- 5' ft= I ft b. Mound height at the upslope edge of rock n-3a: SLOPE MULTIPLIER TABLE layer = depth of clean sand for separation (G2a) Land UPSLOPE DOWNSLOPE Slo multipliers for various multi liens for various at upslope edge plus depth of rock layer (1 ft) in :lope ratios slope 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 ft+ 1ft+ 1ft= 3 .4r 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 multiplier based on land slope 1 2.91 3.85 1.76 5.66 6.54 7A1 3.09 4.17 5.26 6.38 7.53 (see figure D-34) 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 1.35 5.08 5.79 6.15 3.30 4.54 5.88 732 8.86 4 2.68 3.45 4.17 4.84 5.46 6.06 3.41 4.76 62S 7.89 9.72 upslope mound height(G2b): 5 2.61 3.33 4.00 4.62 5.19 5.71 3.53 5.00 6.67 8.57 10.77 P. x 3�-ft =_�-d ft 6 2.54 3.23 3.85 4.41 4.93 5.41 3.66 5.26 7.14 938 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 = rock layer width (D2) times 9 2.42 3.03 3.57 4.05 4.49 4.88 3.95 5.88 8.33 1154 15.91 percent landslope (C5) -1- 100 9 2.36 494 3.45 3.90 4.30 4.65 4.11 L6.25 9.09 13.04 18.92 -AP ft X /a + 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 height= 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 (G2e) at downslope U 2.21 2.70 3.12 3.49 3.80 4.08 4.69 7.69 12.50 21.43 43.75 rock edge plus the mound height at the upslope edge of rock layer (G2b) ft + .,:) _ft=-!f-. ft g. Downslope berm multiplier based on percent land slop _ -gal Ce.-L �r (see figure D-34) h. Downslope width = downslope multiplier Upslope V&th(c fd) (G2g) ti es downslope mound height(G2f) 40 Rock Bed )� Upsl a Width(C2d) �•Z X _ft Upolo tVidth(02d) Lw�iaa�(D2).)JRZ ft i. Select the greater of G1 and G2h as the g D3 ft F Downslope widthcc2li ft downslope width: a j. Total mound width is the sum of upslope Absorption width(F) width (G2d) width plus rock layer width (D2)plus downslope width (G2i) Total Length(G2k)11 ft 10 ft +eft+ QCW ft= .ft k. Total mound length is the sum of upslope width (G2d) plus rock layer length (D3) plus upslope width (G2d) 10ft+ L� ft +loft= _feet xe �Z �� Final Dimensions: y.� X /bv I hereby certify that I have co pleted this work in accordance with applicable ordinances, rules and laws. % (signature) ' (license#) �y ' !Sd " (date)