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' ' 3. ABSORPTION AREA SIZING <br /> Note:Mound setbacks are measured from the Absorption Area. <br /> A. Calculate Abwrption Width:Bed Width (2.6)X Mound Abwrption Ratio (1.F)=Absorption Width <br /> 10.0 ft x 2.6 = 26.0 ft <br /> B. For slopes>1%,the A6sorption Width is measured downhitt from the upslope edge of the Bed. <br /> Catcutate Downs(ope Absorption Width:Absorption Width {3.A)-Bed Width (2.8)=ft <br /> 26.0 ft - 10.0 ft = 16.0 ft <br /> 4. MOUND SIZING <br /> A. Calculate Clean Sond Lift: 3 feet minus Depth to Limiting Conditron (t.C)=tlean Sand Lift (1 ft minimum) <br /> 3.0 ft - 1.2 ft = 1.8 ft Design Sand Lift(optional): �� g <br /> B. Catculate Upsiope Height:C(ean Sand Lift (4.A�+media depth (1 ft.)+cover (1 ft.)=Ups(ope Height <br /> 1.8 ft + 1.0 ft + 1.0 ft= 3.8 ft <br /> Q-34:Slope Multiptier Tabte <br /> land Siope� o I 2 3 4 5 6 7 8 9 t0 11 11 13 id t5' )b il 18 19 24 21 12 23 24 25 <br /> Up510� �3:1 i.GC ?.9f 2.8J ??5 2.R6 2.51 2.5�i 2.d8 2.d2 i.35 2,31 2.26 2.21 [.iT i.i3 2.Q4 2.tK Lt13 2.iti t,97 1.9i L93 1.5i 1.89 1.87 1,$5 <br /> B?rn�Ratio �:i d.�6 3.85 9,70 3:57 3.a5 3.33 3.23 3.12 3.03 2,§4 2,8b 2.7fl 2.70 2.b2 2.55 2.J8 2�1 2.35 219 2.13 2.i8 2.fi3 2.08 2.03 1.98 1.93 <br /> Land Siope� G t '2 3 4 5 6 I S 9 10 I1 12 1� Id 15 lb 17 IA 19 30 21 22 13 34 25 <br /> Lb'f�OiIC�P '3:1 3.00 3.1��.19 3.3� 3.dI 3.53 3.6b 3.M 3.95 a.11 a.29 4..{8 d.64 4.95�5.ia 5.55 5.E8 6.Td 6.E3 7.C3 1.a7 7,�i3 8.42 8.93 9.�16 tO.OP <br /> Bef01 Rc1tiG d:t 4.W 4,i7�.35 d.SA 4J6 5.W 5,2b 5,56 5.�5 6.15 6,di 7.td 7.69 8,29 8.92 9.i7 t0.t�1 10.44 11,67 12.4i 13.19-11.99 td.82 15.67 hb�54 11.4; <br /> Select Upslope Berm Multiplier <br /> �" (based on land stope): 2.83 (figure D-34) <br /> D. Catculate Upslope 8erm Width:Muttiplier (4.C)X Upsiope Mound Height (4.B)=Upslope Berm Width <br /> 2.83 ft X 3.8 ft = 10.8 ft <br /> E. Catculate Drap in Elevation Under Bed:Bed Width (2.6) X Land Slope (1.D):100=Drop (ft) <br /> 10.0 ft x 5.0 % = ioo= 0.50 ft <br /> F. Calculate Downs(ope Mound Height:Upslope Height (4.8j+Drop in Etevation (4.E)=Downs(ope Heiqht <br /> 3.8 ft + 0.50 ft = 4.3 ft <br /> Select Downstope Berm Mu(tiplier <br /> �' (based on tand slope): 5.40 (figure D-34) <br /> H.Catculate Dowr�s(ope Berm Width:Mu(tip(ier (4.G)X Downstope Height {4.F)=Downslope Berm Width <br /> 5.00 x 4.3 ft = 21.7 ft <br /> I. Calculate Minimum 8erm to Cover Absorption Area:Uownstope Absorption Width (3.8 or 3.C)+4 ft.=ft <br /> 16.0 ft + C4� ft = 20.0 fc <br /> J. Design Downstope 8erm =greater of 4H and 41: 21.7 ft <br /> K. Select Ends(ope Berm Multiplier: 3.00 (uwaliy 3.0 or 4.0) <br /> L. Calculate Endslope Berm (4.K)X Downsiope Mound Height (4.F)=Endslope Berm Width <br /> 3.00 ft x 4.3 ft = 13.0 ft <br /> M.Calculate Mound Width:Ups(ope Berm Width(4.D)+8ed Width (2.6)+po�slope Berm Width (4.J)=ft <br /> 10.8 ft + 10.0 ft + 21,7 ft = 42.5 ft <br /> N. Calculate Mound Length:Endslope Berm Width (4.L)+g�Length (2.C)+Endslope Berm Width (4.L)=ft <br /> 13.0 ft + 63.0 ft + 13.0 ft = 89.0 tt <br /> Comments: <br />