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' 3. dBSORPTION AREA SIZING <br /> Note:Mound setbacks are meawred from the Absorption Area. <br /> A. Catculate Absorption Width:Bed Wid�h (2.6)X Mound Absorption Ratio (1.F)=Absorption Wfdth <br /> 10.0 ft X 2.0 = 20.0 ft <br /> B. For slopes>1%,the AbsorpNon Width,is meawred downhill from the upslope edge of the Bed. <br /> Calculate Downs(ope Absorption Widt�;Absorption Width (3.A)-Bed Width (2.6)=ft <br /> 20.0 ft - 10.0 ft = 10.0 ft <br /> 4. MOUND SIZING <br /> A. Cakulate Cleon Snnd Lift: 3 feet min�s Oepth to Limiting Condition (1.C)=C(ean Sand lift (1 ft minimum) <br /> 3.0 ft - 2.3 ft * 1.0 ft Design Sand Lift(optional): ��� Q <br /> B. Calculate Ups(ope Height:Clean Sand Lift (4.A)+media depth (1 ft.)+cover (1 ft.)=Ups(ope Height <br /> 1.0 ft + 1.0 ft � 1.0 ft= 3.0 ft <br /> D•)4:Slope Mulhplier Tabir � <br /> li�d SIOp!% 0 1 I 3 4 S 6 S 9 10 i l 12 13 14 15 16 17 18 19 20 Z I 22 23 24 25 <br /> UpSlO� 3:1 3.QQ 2.91 2.83 2.75 2.68 2.61 2.Sd 2 2.d2 2.?6 2.31 2.26 2.21 2.t7 2J3 Z.G9 2.05 1.0? 2.OQ 1.97 1.95 1.43 1.91 1.89 1.87 1.85 <br /> Be�m Ratio 4:1 3.OQ 3.85 3.I0 3.51 3.d5 333 3.2's 3.12 3,03 2.9,t 2.85 2.78 2.7D 2.62 2.55 2.d8 2.dt 2.35 2.29 2.23 ta8 2.13 2.08 2.03 1.98 I.93 <br /> I.md SiOpe� 0 I 2 3 4 5 6 8 9 10 1 t 12 13 Id 15 16 17 18 19 20 11 21 21 24 25 <br /> D0�•msiope 3;1 1.00 3.09 3.t9 3.30 3.a1 3.51 3.�6 I. 3.95 4J1 d.29 d.s8 3,64 d.95 5,2�1 5.55 5.88 6.Z� �.63 7,at 7.�7 1.93 8.a2 8.43 9.J6 iQ.02 <br /> $emt RdtiO 4:1 a.00 4.17 4.35 4.5J JJ6 5.00 5.Z6 S. 5.88 6.25 6.61 7.1a 7,69 8.24 8.91 9.57 10,Id 10.4J it.67 i2.�2 t3.19 11,49 i�4.e2 15.61 t6.54 U.a.t <br /> Setect Upslope Berm Multip(1er <br /> �' (based on tand slope): 3.45 (figure D-34) <br /> D. Calculate Upslope Berm Width:Multiplier (4.C)X Upslope Mound Height (4.B)=Upstope 8erm Wfdth <br /> 3.45 ft x 3.0 ft = 10.0 ft <br /> E. Calculate Drop in Elevation Under Bed;�ed Width (2.8) X tand Slope (1.D):100=Drop (ft) <br /> 10.0 ft X 4.0 % = 100= 0.40 ft <br /> F. Cakutate Downs(ope Mound Height:Upspope Height (4.6)+Drop in Etevation (4.E)=Downslope Height <br /> 3.0 ft + 0.40 ft = 3.4 ft <br /> G. Setect Do►mslope Berm Multiplier <br /> (based on(and slope): 4.76 (figure D-34) <br /> H. Calculate Downslope Berm Width:Multtdlier (4.G)X Downslope Height (4.F)=Downslope Berm Width <br /> 4J6 x 3.4 ft = 16.0 ft <br /> I. Calculate Minimum 8erm to Cov�er Ab tion Area:Downstope Absorption Width (3.6 or 3.C)+4 ft.=ft <br /> 10.0 ft + � ft = 14.0 ft <br /> J. Design Downs(ope Berm =greater of 4H�nd 41: 16.0 ft <br /> K. Select Endslope 8erm Multiplier: 3.00 (usually 3.0 or 4.0) <br /> L. Calculate Endslope Berm (4.K)X Downsl Mound Height (4.F)�Endslope Berm Width <br /> 3.00 ft x 3.4 ft = 10.0 ft <br /> M.Calculate Mound Width:Upslope Berm YWi1dth(4.D)+g�Widtb (2.6)+Dorms(ope Berm Width (4.J)=ft <br /> 10 0 ft + 10.0 ft + 16.0 ft = 36.0 ft <br /> N. Calculate Mound Length:Endslope Berm I�idth (4.L)+@�/��q� �2,�)+Endsl�e Berm Width (4.L)=ft <br /> 10.�0 ft + 50.0 ft + 10.0 ft = 70.0 ft <br /> Comments: ' <br />