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' 4. ' MOUND SIZING <br /> A. Catculate C(evn Sond Lift: 3 feet minus Depth to limiting Condition (1.C) = C(eQn Sand Lift (1 ft minimum) <br /> 3.0 ft - 2.2 ft = 1.0 ft <br /> B. Calculate Ups(ope Height: Clean Sand Lift (4.A) +medio depth (1 ft.) +cover (1 ft.) =Upstope Height <br /> 1.0 ft + 1.0 ft + 1.0 ft= 3.0 ft <br /> D-3C:Siope Multiplier Table <br /> Land SIopQ� 0 1 2 3 4 5 a 7 8 9 18 it I2 13 14 �5 16 17 18 i9 20 21 22 23 24 25 <br /> UpSlapB 3:1 3.00 2.91 2.83 2.75 2.68 2.6t 2.54 2.-18 2.J2 2.36 2.31 2.26 2.Z1 2.'7 2.t3 2.a9 2.06 2.03 2.00 1.97 1.95 1.93 1.91 1.89 1.87 1.85 <br /> Be1n1 Rat?o a:1 �4.00 3.65 3.70 3.57 3.�i5 3.33 3.23 3.12 3.03 Z.9�i 2.86 2.78 2.)� 2.62 2.55 2.�18 2.at 2.35 2.29 2.23 1.18 2.13 1.08 2.03 1.98 1.93 <br /> Lind$IOp!i> 0 4 2 3 4 5 6 7 8 9 10 1 t 12 1` 14 IS 16 17 18 19 20 21 22 23 24 25 <br /> UO��1f15lOpe 3:1 3.t7C 3.09 3.99 3.3D 3.d1 3.53 3.66 3.H0 3.55 .i.ii .t.29 3..t8 ».55 1 ` 5.2J 5.55 5.68 6.2d 6.63 7.LW 7..i7 7.93 8.�1i 8.93 9..16 iD.02 <br /> Berm Ra,iO �:1 4•00 4•77 4.35 d.SJ aJ6 5.00 5.26 5.5b 5.88 6.25 6.67 7.td 7.65 8.ti d.92 9.57 10.2i 10.9J ti.67 12.J2 13.t9 13.99 1-t.ffi 55.67 16.54 17..41 <br /> Select Upslope Berm Multip(ier <br /> �' (based on land slope): 3.23 (figure D-3�) <br /> D. Calculate Ups(ope Berm Width: Muttiptier (4.C)X Ups(ope Mound Height (4.6) =Upslope eerm Width <br /> 3.23 ft x 3.0 ft = 10.0 ft <br /> E. Calcutate Drop in Elevation Under Bed: Bed Width (2.6) X Land Slope (1.D) = 100=Drop (ft) <br /> 10.0 ft x 6.00 % : 100= 0.60 ft <br /> F. Calcutate Downslope Mound Height: Upslope Height (4.6) +Drop in Elevation (4.E) =Downslope Height <br /> 3.0 ft + 0.60 ft = 3.6 ft <br /> G Select Downslope Berm Mu(tiplier <br /> (based on land slope): 5.26 (figure D-34) <br /> H. Calcutate Downslope Berm Width:Muttiptier (4.G)X Downslope Height (4.F) =Downslope Berm Width <br /> 5.26 x 3.6 ft = 19.0 ft <br /> 1. Calculate Minimum Berm to Cover Absorption Area:Downslope Absorption Width (3.B or 3.C) +4 ft. =ft <br /> 5.4 ft + � 4 � ft = 9.4 ft <br /> J. Design Downslope Berm =greater of 4N and 41: 19.0 ft <br /> K. Setect 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 3.6 ft = 11.0 ft <br /> M.Calculate Mound Width: Ups(ope Berm Width(4.D) +Bed Width (2.6)+pownslope Berm Width (4.J) =ft <br /> 10.0 ft + 10.0 ft + 19.0 ft = 39.0 ft <br /> N. Calculate Mound Length: Endslope Berm Width (4.L) +Bed Length (2.C)+Endstope Berm Width (4.L) =ft <br /> 11.� ft + 63.0 ft + 11.0 ft = 85.0 ft <br />