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� S�%E i� <br /> 3. ABSORPTION AREA SIZING <br /> IJote:Mound setbocks ore meawred from the Absorption Areo. <br /> A. Calculate Absorption Width:Bed Width (2.6)X Mound Absorption Ratio (1.F)=Absorption 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 /> Catculate Downslope Absorption Width:Absorptfion Width (3.A)-Bed Width (2.8)=ft <br /> 20.0 ft - 10.0 ft = 10.0 ft <br /> 4. MOUND SIZING <br /> A. Catculate Clean Snnd Lift: 3 feet minus Depth to Limiting Condition (1.C)=f(ean Sand Lift (1 ft minimum) <br /> 3.0 ft - 1.7 ft = 1.3 ft Design Sand Lift(optional): �1.3 <br /> B. Calculate Upslope Height:Cfean Sand Lif[ (4.A)+media depth (1 ft.)+cover (1 ft.)=Upslope Height <br /> 1.3 ft + 1.0 ft + 1.0 ft= 3.3 ft <br /> D�3»:ilope Mu(tiplier 7abie <br /> Land Slope ro 0 I 2 l 4 5 6 7 8 4 10 il 12 13 14 IS Ib il 18 14 20 21 12 23 24 25 <br /> � 11pSlnpa �i:1 ?.UC L9t�:.d3 2.?5 2.68 2.51 2.5: 2.� Lai 2.3h L?i Z26 2.'ti i.il L�3 i.C4 2.1M 2.03 ..1� 1.5? I.Si 1.93 1.4' 1.85 t.E1 i.Si <br /> Bulrii RdL'0 iJ:i 4.�1 3.85 i.70 3.51 i.�{5 ?.33 3.23 3.12 3A3 t.9d 2.85 2.78 2J0 2.62 2.55 2.48 2.d1 2.35 2.29 L23 2.t8 2.i3 2.OB 2.Qi 1.58 t.9i <br /> LandSiope e o i 2 3 4 5 6 7 8 9 i0 ii il i3 ia i5 �6 t1 i8 i9 20 2i 12 23 2a t5 <br /> [ip`:%I1SlOp? j;:i ?.OG '-.C'r i.�5 3.30 3.�lI 3.53 3.56 3.80 ].95 a.11 a.'c9 4.� 1.55�t.49 i.(�! i.5$ 5,E9 �.?�4 6.6i 7.0.: 1.a7 L4i 9.at d.ii 9.a6 1p.1't <br /> � fie�m RacO j�t:t a.DO a.tl 1.35 a.5t 1.76 5.00 5.16 5.56 5.88 6.25 6.6J 1.14 ).65 8.29 8.92 9.51 101J I0,4�! 1I.67 12.42 13.14 13.99 W.81 a5.61 i6.5s I?.�» <br /> Select Upslope Berm Multiptter <br /> �' (based on land s(ope): 3.03 (figure D-34) <br /> D. Calculate Upstope Berm Width:Multip(ier (4.C)X Ups(ope Mound Height (4.B)=Upslope Berm Width <br /> 3.03 tt x 3.3 ft = 10.0 ft <br /> E. Calcutate Orop in Elevntion Under Bed:Bed Width (2.6) X Land Slope (1.D):100=Drap (ft) <br /> 10.0 ft x 15.0 % _ �00= 1.50 ft <br /> F. Calculate Downs(ope Mound Height:Upstope Height (4.6)+Drop in Elevation (4.E)=Downs(ope Height <br /> 3.3 ft + 1.50 ft = 4.8 ft <br /> Setect Downslope Berm Multip(ier <br /> �' (based on land slope): 5.55 (figure D-34) <br /> H. Catculate Downslope Berm Width:Mu(tiplier (4.G)X Downs(ope Height (4.F)=Downslope Berm Width <br /> 5.55 x 4.8 ft = 27.0 ft <br /> I. Calculate Minimum Berm to Cover Absorption Area:Downslope Absorption Width {3.B or 3.C)+4 ft. =ft <br /> 10.0 ft + �� ft = 14.0 ft <br /> J. Design Downslope Berm =greater of 4H and 41: 27.0 ft <br /> K. Setect Endslope Berm Mu(tiplfer: 3.00 (usually 3.0 or 4.0) <br /> L. Calcutate Endslope 8erm (4.K)X Downslope Mound Height (4.F)=Endslope Berm Width <br /> 3.00 ft X 4.8 ft = 15.0 ft <br /> M.Calculate Mound Width:Upslope Berm Width(4.D)+Bed Wfdth (2.6)+Downslope Berm Width (4.J)=ft <br /> 10.0 ft + 10.0 ft + 27.0 ft = 47.0 ft <br /> N. Calculate Mound Length:Ends(ope Berm Width (4.l)+Bed Length (2.C)+Endslope Berm Width (4.L)=ft <br /> 15.0 ft + 63.0 ft + 15.0 ft = 93.0 ft <br /> Comments• <br />