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4• MOUND SIZING <br /> A. Calculate Clean Sand Lift: 3 feet minus Depth to Limiting Condition (1.C)=C(ean Sand Lift (1 ft minimum) <br /> 3.0 ft - 1.2 ft = 1.8 ft <br /> B. Calculate Upstope Height: C(ean Sand Lift (4.A)+medio depth (1 ft.)+cover (1 ft.)=Upslope Height <br /> 1.8 ft + 1.0 ft + 1.0 ft= 3.8 ft <br /> D�3S:Sbpe Mul!iD�itr iab�e <br /> Land$lop!% 0 } 2 3 4 5 6 7 8 G 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 <br /> I i)aSIOpA 3:1 3.Oi, 2.91 2.B3 i.75 L68 i.5t 2.SJ 2.-t3 2.12 2.35 2.31 2.25 2.i1 2.t7 �.i3 i.CS Z.05 2.03 2.t7; t.i) i.55 i.53 tAt 1.89 1.87 L85 <br /> Berm Ratiu �:t aA0 3.d5 i.70 i.57 's.�5 3.i3 3.23 3.12 3.03 2.5J 2.86 2J8 2JC� 2.62 2.55 2.J8 2.11 2.35 2.29 1.?3 2J8 1.13 2.Od 2.Oi t.46 I.93 <br /> Land Slope`.� 0 � 2 3 4 5 6 7 8 9 10 II IZ 13 I4 15 16 i7 IS 14 20 21 22 23 14 25 <br /> C�`:mS10pN 3:1 1.��0 ,.OS 's.79'i.ii� ;.al 3.51 3.66 3.£0 3.9i 1.ii d.29 a..t8 ».6S 4.95 i.24 5.i5 5.88 61�3'6.b3 7.OJ 7.J7 7.i3 i.a't 8.4i 3.-Ih '.Q.:�2 <br /> Berm Ra:ti) 4:� :.00 a.n .7.35 d.SJ a.76 S.W 5.26 5.56 5.88 6.Z5 6.67 Zfn 7.b9 6.24 8.9t 9.5? 1011 10.9�1 i1.67 12.:2 �3.19 13.99 is.82 'S.67 I6.Sd �7..w <br /> �. Select Upslope Berm Multip(ier <br /> (based on land slope}: 3.70 (figure D-34) <br /> D. Calculate Upslope Berm Width:Multiplier (4.C)X Upslope Mound Height (4.B)=Ups(ope Berm�dth <br /> 3.70 ft x 3.8 ft = 14.2 ft <br /> E. Calculate Drop in Elevation Under Bed:Bed Width (2.6) X tAnd Slope (1.D)=100=Drop (ft) <br /> 10.0 ft X 2.00 % : 100= 0.20 ft <br /> F. Calculate Downslope Mound Height: Upslope Height (4.6)+Drop in Elevation (4.E)=Downslope Height <br /> 3.8 ft + 0.20 ft = 4.0 ft <br /> Select Downs(ope Berm Multip(ier <br /> �' (based on land slope): 4.35 (figure D-34) <br /> H. Catculate Downslope Berm Width:Multipiier (4.G)X Downs(ope He�ght (4.F)=Downslope Berm�dth <br /> 4.3 5 x 4.0 ft = 17.5 ft <br /> I. Calculate Minimum Berm to Cover Absorption Area:Downslope Absorption�dth (3.6 or 3.C)+4 ft. =ft <br /> 10.0 ft +� ft = 14.0 ft <br /> J. Design Downslope 8erm =greater of 4H and 41: 17.5 ft <br /> K. Select Endsfope Berm Mu(tip(ier: 3.00 (usualty 3.0 or 4.0) <br /> L. Calculate Endslope 8erm (4.K)X Downs(ope Mound Height (4.F)=Ends[ope Berm Width <br /> 3.00 ft X 4.0 ft = 12.1 ft <br /> M.Calcu(ate Mound Width: Upstope Berm�dth(4.D)+Bed�dth (2.6)+Downslope Berm�dth (4.J)=ft <br /> 14.2 ft + 10.0 ft + 17.5 ft = 41.7 ft <br /> N. Calcu(ate Mound Length: Endstope Berm�dtA (4.L)+Bed Lengti► (2.C)+Ends(ope Berm �dth (4.L)=ft <br /> 12.1� ft + 63.0 ft + 12.1 ft = 87.2 ft <br />