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OSTP Mound Materiats Worksheet LNIVERSiTY <br /> Minnesow Poilution OF iV11NNES0'I'A <br /> Controi Ayen�y ,�\4 <br /> PrajectlD: <br /> A.Calculate Bed (rock)Vo(ume:Bed tength Q.0 X Bed Width 2.0)X Oepth =Yolume If[''i �07•14•�5 <br /> �-� ft X 10.0 �ft X 0.8 = 400.0 ft' <br /> Drv�de ft�by 27 fY/yd'to caicutate cubic ards: <br /> 400.0 ft' a 27 = 14.8 yd� <br /> Add 20%for cons[ructabiGty: 14 8 , _ <br /> yd'X 1.2 17.8 yd� <br /> B. Calcukate Cieon Sond Vo(ume: <br /> Vofume Under Rock bed:Averoge Sand pcpth x Medio Width x Medio Length =cuDic feet <br /> 21 ft X 10.0 ft X 50.0 ft = 1100.0 3 <br /> ft <br /> For a Mound on a slope from 0-1% <br /> Volume from Length=(�Upslope Mound Height-7►X Absorption Width Beyond eed X naedia Bed L <br /> ength) <br /> fc -�} x �� x �_-�tc = <br /> Volume from Wtdth=(�Upslope hWund Height-t)X�..,,,,�d�h g�o��X Media Bed Width) _ <br /> . � <br /> ft -i) X � x �ft <br /> Total Cleon$nnd Volume: Volume/rom Lenqth t Volume from Width-Vo(ume Under Medio <br /> ft� � ' <br /> ft� - ft' = ft' <br /> For a Mound on a slope greater ihan t% <br /> Upsfope Volume:�(Upslope�Heigh�x 3 x Bed Lenyth��2=cubic feet <br /> tf 3.5 ft •1) X 3A ft X 50.0 j-2= 187.5 ft3 <br /> Downslope Volume:��Downslope Height• 1/ x Downslope Absorption Width x Medio Leogth)�2=tubic feet <br /> 11 3.9 ft-1i X ibA ft X 50.0 }-2= 1760.0 ft� <br /> fndslope Volume:(Downslope Mound Height- l) x 3 x Media Width =cubu feet <br /> 1 3.9 ft-1 � X 3.0 ft X 10A ft = 87.0 3 <br /> f[ <br /> Tota(Qean Sond Volume:Upslope Volume -Downslope Vofume -Endslope Votume -Yolume Under Media <br /> 787.5 fc' : 1760•0 fi' • 87.0 <br /> fY - 7100.0 fC= 2534.5 ftj <br /> Divide ft'by 27 ft'/yd3 to calwta[e cubic yards: C2534.5 ft3 r 27 = 93.9 <br /> ��yd� <br /> Add 20%for cornvuctability: 93.9 <br /> G. Calcula[e Yd'X �.2 = �t2.6 yd3 <br /> Sandy Berm Volume: <br /> Tota!Berm Vo(ume Icpproxl:1(Avg.Mourb Height-0.5 ft topsoil►x Mound Width x Mound Length)-2=cubic feec <br /> � 3•?] - 0.5 �ft X a3.0 ft X 7q,p <br /> )-2= 5041.2 ft� <br /> Torot Mou,rd Votume-Ctean Sond votume-Rock Volume=cublc Jeet <br /> ��•Z ft' - 2534.5 � . <br /> ft 400.0 ft' = 215(s.7 f�i <br /> Divide ft'by 27 h'/yd'to catcutate cub�c yards: 2t56J ft' : 27 = 79.9 <br /> yd' <br /> Add 20`K for constructabilicy: 79 9 _ <br /> yd} x 1.2 95.9 �3 <br /> D. Calculate Topsoit Moteriol Volume:Tota(Mound W�d[h X Totvf hbund Leng[h X.5 JI <br /> � a3.0 rc x 7a.o �fc x 0.5 ft = 7597.0 ft> <br /> Divide ft'by 27 f['/yd'to calcutate cubic yards: 7591 A <br /> fY = 27 = 5g_q yd� <br /> Add ZO%for consVuciabiliry: 58.9 ' <br /> yd' x 1.2 = 70.7 yd3 <br />