Laserfiche WebLink
� � ��/� ��� �S��� � <br /> � OSTP Iwound esi�n jJNIVERSITY <br /> M��„�, Worksheet >1� Slope OF MINNESOTA <br /> • 1. SYSTEM SiZING: v-11.05.31 <br /> A.Design Flow(Flow&Soil- 7.A) : 575 GPD <br /> 8. Soil Loadfng Rate(Flow&Soi(-3.C): 0.60 GPD/ft2 <br /> ; [. Depth to L�mlting Condition: 1.5 ft <br /> 1 <br /> F D.PercentLand Slope: 9.0 % �� �A,�.�,z.�3'°,za -' s�t <br /> ; E. Design Media Loading Rate: 1.2 GPD/ft2 s1•�z°"+p� °R s.'° "" j'a <br /> ' F. Mound Absorption Rotio(Table!Xa): 2.00 r�zo� >s�o' �' <br /> i !G. Design Contour Loading Rate: 12.0 GPD/ft •Systems witt,these vatues are not Type I systems. <br /> :i <br /> (From Table 1-same as Linear Loading Rate) Contour Loading Rate is a recommended vnWe. <br /> �2. DISPERSAL MEDIA SIZIt�G <br /> A. Calculate Required Dtspersol Bed Area:Design Flow (1.A)=Design Media L.oeding Rate (1.E)=ft2 <br /> If a iarger dispersal media 675 GPD t 1.20 GPD/ft2 = 563 ft� <br /> area is desired,ertter size: 57� � . <br /> _ <br /> ' B. CalcuiateDispersat Bed Widtb:Contour Locding Rate-(1:G)-=Design Media i.00ding Rate (1.E)=�ed-YlSdth -- - - - <br /> .; ; <br /> `' ' 12.0 ft i 1.2 gpd/ft2 = 10 ft <br /> �. Lalculate Disper3a!Bed Length: Dispersa!9ed AreQ �Z.A)i Bed INsdth (2.Bj=Bed Length <br /> 570 ftZ : 10 ft � 57 ft <br /> D. Select Dispersnl Media: ❑ROCk <br /> ❑Other Approved Media Rock <br /> 3. ABSORPTION AREA SIZING <br /> Note:Mound set6acks are meawred from ihe Absorption Area. <br /> A. Calculate Absorptton�dth:Bed�dth {2.B)X MoFrnd Absorption Raifo {1.�=Absorption�dth � � � <br /> 10.0 ft X 2.0 � = 20.0 �t <br /> B. For slopes>i%, the.4bsorption NSdth is measured downhill from the upslope edge of the Bed. <br /> Calculate Downstope Absorption Width:Absorption 1Nidth (3.Aj -Bed Wdth (2.B)6 ft .� <br /> 20.0 ft - 10.0 ft = 10.0. _ , ft_. . ,, <br /> Commen�s: <br /> Siope,CLR Chcice,Matericl issues <br />