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3• ABSORPTION AREA SIZING <br /> Note:Mound setbocks are measured from the Absorption Area. <br /> A. Calcutate Absorption Width:Bed Width (2.6)X Mound Absorption Ratio (1.f)=A6sorption Width <br /> 10.0 ft x 2.0 = 20.0 ft <br /> B. For slopes>1%,the Absorption Width is measured downhill from the upstope edge of the Bed. <br /> Calculate Downslope Absorption Wfdth:Absorption Wfdth (3.A)-Bed Width (2.B)=ft <br /> 20.0 ft - 10.0 ft = 10.0 ft <br /> 4. MOUND SIZING <br /> A. Calculate C(ean Sand Lift: 3 feet minus Depth to Limiting Condition (1.C)=Clean Sand Lift (1 ft minimum) <br /> 3.0 ft - 1.0 ft = 2.0 ft Design Sand Lift(optional): �Z 0 <br /> B. Calculate Upslope Height:C[ean Sand Lift (4.A)+media depth (1 ft.)+cover (1 ft.)=Ups(ope Height <br /> 2.0 ft + 1.0 ft * 1.0 ft= 4.0 ft <br /> D•34;Slope MuUiplier Tahlr <br /> Land Stope� 0 t 2 3 4 5 6 7 6 R t0 11 12 i3 E4 15 f6 17 1H 1� 20 21 21 23 2e 25 <br /> ! UpSlOpe ?:t 3.00 2.9I 2.83 i.75 2.68 2.�1 2.5�2.d9 2,d2 2.35 1.31 2.26 2dt i.:l Z13 ZG9 1.05 2.03 2,0� LS7 1.55 1.ii I.ii 1.$9 1.81 LE$ <br /> � <br /> ; Berni Rat'0 4:f 1.00 i.85 3.7Q 3.57 3.45 3.3i 3.23 3J2 3.03 2.9d 2.86 2,18 2.T0 1.b1 2.55 3.48 2.d1 2.35 2.29 213 2.I8 2.13 I.flB 2.03 1.48 1.93 <br /> Land5lope� 0 I 2 1 4 5 6 1 8 9 10 It 12 i3 i4 15 t6 17 18 I9 10 21 22 23 2� 15 <br /> [�i'r:OS10� ii:i l.(� 3,09 3.t"r i.36 i.ai 3.S1 3.66 3.80 399 J.11 �1.29 4.»8 d.b4 J.95 524 5.55 5.88 6.1J 6.63 T,W 7,.p 7.43 8.�2 8.93 9.d6 t0,Q2 <br /> 6erniRd[G ��,f a.00 a.�7 a.35 d.�l aJ6 5.CU SZ6 S.S6 5,88 6.25 6,67 1.1J 7.b9 8.29 8.92 9.51 ��.2a 10.4J ti.61 12.�2 t3.t9 i3.99 �a,82 i5.67 i6.4d Il.�l <br /> Select Ups(ope Berm Mu(tiplier <br /> �' based on land slo 2.70 <br /> ( pe): (figure D-34) <br /> D. Catculate Upslope Berm Width:Multip(ier (4.C)X Upslope Mound Height (4.6)=Upslope Berm Width <br /> 2.70 ft X 4.0 ft = 11.0 ft <br /> E. Calculate Drop in Elevo[ion Under Bed:Bed Width (2.B) X Lond Slope (1.D):100=Drop (f[) <br /> 10.0 ft x 12.0 % : too= 1.20 ft <br /> F. Calculate Dawnslope Mound Height:Upslope Hetght (4.8)+Orop in E(evation (4.E)=Downslope Helght <br /> 4.0 ft + 1.20 ft = 5.2 ft <br /> Setect Downslope Berm Mu(tip(fer <br /> �' (based on tand slope): 4.69 (figure D-34) <br /> H.Calculate Downs(ope Berm Width:Multiplier (4.G)X Downslope Height (4.F)=Downs(ope Berm Width <br /> 4.69 x 5.2 ft = 25.0 ft <br /> I. Calculate Minimum Berm Lo Cover Absorption Area:Downslope Absorption�dth (3.6 or 3.C)+4 ft. =ft <br /> 10.0 ft + �4� ft = 14.0 ft <br /> J. Design Downs(ope Berm =greater of 4H and 41: 25.0 ft <br /> K. Select Endslope Berm Multiplier: 3.00 (usually 3.0 or 4.0) <br /> L. Calculate Endslope Berm (4.K)X Downslope Mound Height (4.F)=Endslope Berm Width <br /> 3.00 ft x 5.2 ft = 16.0 ft <br /> M.Calculate AAound Width:Upslope Berm Width(4.D)+g�Width (2.6)+Downslope Berm Width (4.J)=ft <br /> 11.0 ft + 10.0 ft + 25.0 ft = 46.0 ft <br /> N. Calculate Mound Length:Endslope Berm Width (4.L)+Bed Length (2.C)+Endsfope Berm Width (4.L)=ft <br /> 16.0 ft + 63.0 ft + 16.0 ft = 95.0 ft <br /> Comments: <br />