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SECTION 13. Forms and References m. <br /> 3. ABSORPTION AREA SIZING <br /> Note:Mound setbacks are measured from the Absorption Area. <br /> A. Calculate Absorption Width:Bed Width (2.B)X Mound Absorption Ratio (1.F)=Absorption Width <br /> /0 ft X I ,.,S I .. ,_s ft <br /> B. For slopes>1%,the Absorption Width is measured downhill from the upslope edge of the Bed. • <br /> Calculate Downslope Absorption Width:Absorption Width (3.A)-Bed Width (2.6)=ft <br /> • <br /> /_„S' ft - I O ft - S ft <br /> 4. MOUND SIZING <br /> .............. .. <br /> A. Calculate Clean Sand Lift: 3 feet minus Depth to Limiting Condition (1.C)=Clean Sand Lift (1 ft minimum) <br /> 3.0 ft - Z.;p ft - /. d ft Design Sand Lift(optional): I .I <br /> B. Calculate Upslope Height:Clean Sand Lift (4.A)+media depth (1 ft.)+cover (1 ft.)=Upslope Height <br /> /. 19 ft + .83 ft + /. 0 ft= Z.g? ft . <br /> 434:Slope Mukipler Table . <br /> , 141451901% 0 1 2 3. `4 5'. I -0 1 IS 1I IL'II: .. 1":71InftliKcir ItratAr :,-,.,. <br /> Up510(3e l:l 1.00 2.91 2.13 2.75 2.68 261 2.54 2.41 2.62 2.36 2.31 2.26 L21 217 2.p 2.09 3.06 2.01 2.00 1.17 1.95 193 1.91 1.11 1.11 I, <br /> Dean Kalb 41 42> /.70 a.ta 212 m Ai 1.00 tn } 1 1i <br /> ;;: %. a, i 1"..4 '3 Y i" I to ll 11'1; 'ti . rliNrat Ur fi..1111, ` Ffi f. <br /> Downslope 3:1 1.05 3.09 3,19 3.30 141 3.53 3.66 3.113.91 4.11 4.29 4.41 4.69 4.95 5.24 5.55 5.11 6.24 6.63 7.04 7.47 7.93 1.42 1.93 9.4 10.11 <br /> Bene Ralb 44 go 4 l7 4.l Of 4.0 101 14i ill(10 CV 7,14 t4f 1 "it t ,,1 l i . , 4- 1 r•t P.;. ! <br /> • <br /> • C Select Upslope Berm Multiplier <br /> 11 • (based on land slope): I 7.70 (figure D-34) <br /> D. Calculate Upslope Berm Width:Multiplier (4.C)X Upslope Mound Height (4.B)}=Upslope Berm Width <br /> 2.1'0 ft X 2.43 3 ft •• $ ft ,. <br /> . .:... E. Calculate Drop in Elevation Under Bed:Bed Width (2.8) X Land Slope (1.D)+100.Drop (ft) . <br /> 10 ft X i Z. % + 100= I • .:_ <br /> F. Calculate Downslope Mound Height Upslope Height (4.6)+Drop in Elevation (4.E)=Downslope Height <br /> 29J ft * /.X. ft ' 4•. 0. ft <br /> G.Select Downslope Berm Multiplier <br /> (based on land slope): 7.L9 (figure D-34) <br /> H.Calculate Downslope Berm Width:Multiplier (4.G)X Downslope Height (4.F)=Downslope Berm Width <br /> 7.Gt x 4.o ft • 3C9 ft <br /> L Calculate Minimum Berm to Cover Absorption Area:Downslope Absorption Width (3.B or 3.C)+4 ft.=ft <br /> ft * 4- ft ■ ' ft <br /> J. Design Downslope Berm =greater of 4H and 41: 346a ft <br /> K. Select Endslope Berm Multiplier: 7.712 (usually 3.0 or 4.0) <br /> L. Calculate Endslope Berm (4.K)X Downslope Mound Height (4.F)=Endslope Berm Width <br /> I Z.'7e Ift X * ft = // ft <br /> M.Calculate Mound Width:Upslope Berm Width(4.D)+Bed Width (2.B)+Downslope'Berm Width (4.J)=ft ,a. <br /> 8 ft + iO ft + 3O ft - I 48 • Ift <br /> N.Calculate Mound Length:Endslope Berm Width (4.1)+Bed Length (2.C)+Endslope Berm Width (4.L)=ft <br /> I/ ft + 7s ft + j f ft = I 97 Ift <br /> Comments: I <br /> l. <br /> • <br /> • nor <br />