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4• MOUND SIZING <br /> A. Calcutate Clean Sond Lift: 3 feet minus Depth to Limiting Condition (1.C)=Cfean Sand Lift (1 ft minimum) <br /> 3.0 ft - 1.7 ft = 1.3 ft <br /> B. Calculate Upslope Height: Cleon Sand Lift (4.A)+media depth (1 ft.)+cover (1 ft.)=Upslope Neight <br /> 1.3 ft + 1.0 ft + 1.0 ft= 3.3 ft <br /> f.3-0:Siopr,uut!i,lier TaGlr <br /> land Slope% 0 1 2 � 3 4 5 6 7 8 4 10 it !2 13 14 IS i6 �7 tA 14 20 21 12 23 24 15 <br /> ��pSIOpP 3:1 :.00 ::91 2.d3�2.75 2.68 2.51 Z.5> 2.-k3 2.ai 2.35 2.31 L26 2.21 Z t7 2.�3 1.C5i 2.U6 2.Oi.2.00 1.57 I.ii 1.Y3 t.S; J 1.89 1.87 t.ES I <br /> ! Eeim Ra;�n �:I 1.04 's.85 3.70 3.57 3.45 3.33 3.23 3.12 3.03 Z.91 2.86 2J8 2.70 2.62 i.55 2.48 2.a� 2.35 2.2� 2.23 2.i8 2J3 2.08 2.03 1.98 i.53� <br /> Land Slope°b 0 I 2 3 4 S 6 7 8 9 10 it i2 13 14 15 16 17 18 i9 20 21 22 23 24 �5 <br /> C�o�:;nsiope 3:1 ,.th: :.Oi ..ti i.i0!i.�l ;.5' :.55 3.80 3.S> 4.11 J.29 �4.Jfi ».�y :.45 i.i-t 5.55 5.88 6.2-I 6.6i ?.0� 7.a7 7.53 B.a2 8.93 9.a5 t0::2 <br /> B�mt RaC;o 11 �.i�. :.:? �.35 �.Sa 1.7h S.CU S.i6 5.55 5.86 6.25 E.57 7.ta 7.h9 B.i9 S.91 9.57 10.2a tO.S� 71.61 t2.�i2 !3.�9 t3.S9 ta.82 15.67 7b.5� i7..0 <br /> � Select Ups(ope Berm Multiplier <br /> (based on land slope): 2.70 (figure D-34) <br /> D. Calculate Upslope Berm�dth:Multiptier (4.C)X Upslope Mound Height (4.6)=Upslope 8erm Width <br /> 2.70 ft x 3.3 ft = 9.0 ft <br /> E. Catculate Drop in E(evotion Under Bed:Bed Width (2.6) X Land S(ope (1.D):100=Drop (ft) <br /> 10.0 ft X 12.00 % = 100= 1.20 ft <br /> F. Calculate Downslope Mound Height: Upslope Height (4.B}+Drop in Elevotion (4.E)=Downslope Height <br /> 3.3 ft + 1.20 ft = 4.5 ft <br /> Select Downslope Berm Multiptier <br /> G' (based on land slope): 4.96 (figure D-34) <br /> H. Calculate Downsfope Berm Width:Mu(tiplier (4.G)X Downsfope Height (4.F)=Downslope Berm Width <br /> 4.96 x 4.5 ft = 22.5 ft <br /> i. Catculate Minimum Berm to Cover Absorption Areo:Downslope A6sorption�dth (3.6 or 3.C)+4 ft. =ft <br /> 10.0 ft +� ft = 14.0 ft <br /> J. Design Downslope Berm =greater of 4H and 41: 22.5 ft <br /> K. Select Ends(ope Berm Muttiplier: 3.00 (usually 3.0 or 4.0) <br /> L. Catculate Endslope Berm (4.K)X Downslope Mound Height (4.F)=Endstope Berm Width <br /> 3.00 ft x 4.5 ft = 13.6 ft <br /> M.Calcutate Mound Width: Upslope Berm Width(4.D)+Bed�dth (2.B)+Downs(ope Berm�dth (4.J)=ft <br /> 9.0 ft + 10.0 ft + 22.5 ft = 41.5 ft <br /> N. Calculate Mound Length: Ends(ope Berm Wrdth (4.L)+Bed Length (2.C)+Ends(ope Berm�dth (4.L)=ft <br /> 13.� ft + 32.0 ft + 13.6 ft = 59.2 ft <br />