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3. ABSORPTION AREA SIZING � <br /> Note:Mound setbacks are meawred from the Absorption Area. <br /> A. Calcutate Absorption Width:Bed Width (2.8)X Mound Absorption Ratio (t.F)=Absorption Width <br /> 10.0 ft X 2.4 = 24.0 ft <br /> B. For slopes>1%,the Absorption Width is measured downhill from the upslope edge of the Bed. <br /> Calculate Downslope Absorption Width:Absorptfion Width (3.A)-Bed Width (2.6)=ft <br /> 24.0 ft - 10.0 ft = 14.0 ft <br /> 4. MOUND SIZING <br /> A. Calculate C(ean Sand Llft: 3 feet minus Depth to Lfmiting Condition (1.C)=C(ean Snnd Lift (t ft minimum) <br /> 3.0 ft - 1.2 ft = 1.8 ft Design Sand Lift(optional): �1.8 <br /> B. Calculate Upslope Heiqht:Cleon Sond Lift (4.A)+medla depth +cover (1 ft.)=Ups(ope Height <br /> 1.8 ft + 1.0 ft + 1.0 ft= 3.8 ft <br /> D-34,Sto�x Multi�lirr T�ie <br /> �510p��, 0 t 2 # � i 6 7 6 9 10 fl 1Z Y3 1� iS 16 17 1! 14 29 21 23 t7 2� 25,' <br /> UQS��P E 3:1 3.iq 2,41 2.�3 1.75 2.66 3.b1 2,5�i.AB 2.d2 2.3b I.31 2.26 2.21 2�7 2.13 Z�i Z05 2.03 2.06 1.97 5.95 1.93 1.9t t,$4 1.8t t.$5 <br /> $emt Rdt?���:t d:40 3.85 3.70 3.57�.�5 3.33 3:'�3.12 3.03 2.44 1.�2.78 1.7fl I.bI 2.55 2.16 2.�t 2.?i 2.T9' 2:23 3.IE i.i3 2:�6 2.�3 i�98 f.�3 <br /> LdMf5�96 4 f 2 3 t S b J ¢ 9 i9` t1 Il 13 II �5 tb 17 I! t� � ti I2 23 Ii 15. <br /> _ <br /> (3bW1YilOp2 �3:1 3.0!!3.Q�1 3.14 3.3D 3.tt 3.53 3.56 3.8d 3.45�f.11 d,29 9.d8 d.64�1,4ia 5.2A 5.i5 S.SH d.2d b.b3 7.t� 1.d7 7.93 S.d2 8.43 9,d6 1s1.Ot <br /> Serm Rai',o �:t d.p�4tl�.���,5��:I6 5:4�5,26 5.56 5;86 6.�5 d.b7 7;1��.bf 8:�9 8.92 9:57 tb19 t�.�d it.d7 t2.a�'1�;19 i1.f� t�;ST 95.b�1b:5�it;d� <br /> Select Upslope Berm Multiplier <br /> �' (based on tand slope): 2.70 (figure D-34) <br /> D. Catculate Upslope Berm Width:Muttiplier (4.C)X Upslope Mound Height (4.6)=Upslope Berm Width <br /> 2.70 ft X 3.8 ft = 10.4 ft <br /> E. Calcu(ate Drop in Elevat�on Under Bed:Bed Width (2.B) X Lond S(ope (1.D)=100=Drop (ft) <br /> 10.0 ft X 12.0 % :- 100= 1.20 ft <br /> F. Calcutate Downslope Mound Height:Upslope Height (4.B)+Drop in Elevatlon (4.E)=Downslope Heighi <br /> 3.8 ft + 1.20 ft = 5.0 ft <br /> � Select Downslope Berm Multiplter <br /> (based on land stope): 7.69 (figure D-34) <br /> H.Calculate Downs(ope Berm Width:Mu(tiplier (4.G)X Downs(ope Heiqht (4.F)=Downslope Berm W1dth <br /> 7.69 x 5.0 ft = 38.7 ft <br /> I. Calcutate Minimum Berm to Cover Absorpiion Are4:Downs(ope Absorption Width (3.6 or 3.C)+4 ft.=ft <br /> 14.0 ft + � ft - 18.0 ft <br /> J. Deslgn Downslope Berm =greater of 4H and 41: 38.7 ft <br /> K. Select Ends(ope Berm Multiplier: 3.00 (usually 3.0 or 4.0) <br /> L. Catculate Endslope Berm (4.K)X Downslope Mound Height (4.F)=Endslope Berm Width <br /> 3.00 ft X 5.0 ft = 15.1 ft <br /> M.Catculate Mound Width:Upslope Berm Width(4.D)+Bed W1dth (2.B)+Downslope Berm Width (4.J)=ft <br /> . 10.4 ft + 10.0 ft + 38.7 ft = 59.1 ft <br /> N. Calculate Mound Length:Endslope 8erm Width (4.L)+Bed Length (2.C)+Endslope Berm Width (4.L)=ft <br /> 15.1 ft + 63.0 ft + 15.1 ft = 93.2 ft <br /> Comments- <br />