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. • . �Dl <br /> OSTP Mound Materials Worksheet UNIVERSI7Y <br /> Minnesota Poliution O�11/I1�f 1�ESU"3�� <br /> Cantrol Agency <br /> �+- Calculate Bed(rock)Vo(ume:Bed length (Z.0 X Bed�dth 2.6)X Depth =Volume ft3 v 11.0531 <br /> b3.0 ft X 10.0 ft x 1.0 = 630.0 ft3 <br /> Divide ft;by 27 ft'Jyd3 to catculate cubic ards: <br /> 630.0 tt3 = 27 = 23.3 yd' <br /> Add 20%for constructabitity: 23.3 yd'X 1.2 = 28.0 yd; <br /> B. Calculate Clean Sar�d Votume: <br /> Volume Under Rock bed:Average Sand Depth x Media Width x Media Length =cubic feet <br /> t.8 O.o 1.8 ft X 10.0 ft X 63.0 ft = 1144.5 ft' <br /> For a Mound on a slope from 0-1% <br /> Volume from Length=((Upslope Mound Height-1)X Absorption Width Beyond Bed X Media Bed Length) <br /> ft -1) X X ft = <br /> Yolume from Width=((Upslope Mound Height-1)X Absorption Width Beyond Bed X Media Bed Width) <br /> ft -1) X X ft m <br /> Totn!Cleon Sond Volume:Volume from Length+Volume Jrom Width+Volume Under Media <br /> ft3 + ft3 + ft3 = �_�fta <br /> For a Mound on a slope greater than 1% <br /> Upslope Volume:((Ups(ope Mound Height - 1)x 3 x Bed Length)+2=cubic feet <br /> (( 3.4 ft -�) X 3.Oft X 63.0 )-*2= 228.4 ft' <br /> Downslope Votume:((Downslope Height- i) x Dovmslope Absorption Width x Media Length)+2=cubic feet <br /> (( 4.2 ft-1) X 10.0 ft X 63.0 )�2= 1013.3 ft' � <br /> Ends[ope Volume:(Downs(o Mound Height-1)x 3 x Media Width =cubic feet <br /> ( 4.2 ft-1 ) X 3.0 ft X 10.0 ft = 96.5 ft3 <br /> Toto(Cleort Sond Volume:Upslope Vo(ume +pownslope Vo(ume +Ends(ope Volume +Volume Under Media <br /> 228.4 it' + 1013.3 ft' • 96.5 ft' + 1144.5 ft'= 2482.6 ft' <br /> Divide ft;by 27 ft'/yd3 to calculate cubic yards: �482.6 ft3 � 27 = 91.9 yd3 <br /> Add 20%for constructability: 91.9 yd;x 1.2 = 110.3 yd' <br /> C. Calculate Sandy Berm Vo(ume: 3.8 0.0 <br /> Tota(Berm Vo(ume(opprox):((Avg.Mound HeighY-.5 ft topsoil)x Mound Width x Mound Length)T 2=cu.ft. <br /> ( 3.8 _ 0.5 )ft X 34.9 ft x 96.7 )�2= 5602.4 ft3 <br /> Total Mound Vo(ume-Clean Sand volume-Rock Volume=cubic feet <br /> 5602.4 ft' - 2482.6 ft; - 630.0 ft' = 2489.8 ft' <br /> Divide ft3 by 27 ft'/yd'to calcutate cubic yards: 2489.8 ft' _. 27 = 92•2 yd' <br /> Add 20%for corntructability: 92.Z yd' x 1.2 = 110.7 yd3 <br /> D. Calculate Topsoil Moterial Volume:Tota!Mound Width X Total hbund length X.5 ft <br /> 34.9 ft X 96.7 ft X 0.5 ft = 1689.2 ft' <br /> Divide ft3 by 27 ft3/yd3 to calculate cubic yards: 1689.2 ft3 a 27 = 62.6 yd3 <br /> Add 20%for corutnxtability: 62.6 yd' x 1•2 = �5•� Yd3 <br />