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OSTP Mound Materials Worksheet u�I�ERSITY <br /> Minnesota Pollution OF �[NNESOTA \`` <br /> Control Agency " - - <br /> ProjectlD: v 11.09.22 <br /> A. Calculate Bed (rock)Volume:Bed Length (2.0 X Bed Width 2.B)X Depth =Volume ft3 <br /> 26.0 ft X 10.0 ft x i.0 = 260.0 ft' <br /> � Divide ft'by 27 ft'/yd3 to calculate cubic ards: <br /> 260.0 ft' + n = 9.6 yd' <br /> Add 20%for constructability: �9.6 yd'X 1.2 = 11,6 yd' <br /> B. Calculate Clean Sand Volume: <br /> Volume Under Rock bed:Average Sand Depth x Media Width x Media Length =cubic feet <br /> 1.7 ft X 10.0 ft X 26.0 ft = 442.0 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 /> Volume from Width=((Upslope Mound Height-1)X Absorption Width Beyond Bed X Media Bed Width) <br /> ft -1) X X ft = <br /> Total Clean Sand Volume: Volume from Length+Volume from Width+ Volume Under Medio <br /> ft3 + ft' + ft' = ft' <br /> For a Mound on a slope greater than 1% <br /> Upslope Volume: ((Upslope Mound Height - 1)x 3 x Bed Length)�2=cubic feet <br /> (( 3.0 ft -1) X 3.0 ft X 26.0 )+2= 78.0 ft' <br /> Downslope Volume: ((Downslope Height- 1) x Downslope Absorption Width x Media Length)f 2=cubic feet <br /> (( 4.4 ft-1) X 16.0 ft X 26.0 )�2= 707.2 ft' . <br /> Endslope Volume: (Downs(ope Mound Height- 1) x 3 x Media Width =cubic feet <br /> ( 4.4 ft-1 ) X 3.0 ft X 10.0 ft = 102.0 ft' <br /> Total Cleon Sand Volume:Upslope Volume +Downslope Volume +Endslope Volume +Volume Under Medfo <br /> 78.0 ft' + 707.2 ft' � 102.0 ft' + 442.0 ft'= 1329.2 ft' <br /> Divide ft'by 27 ft'/yd'to calculate cubic yards: 1329.2 ft' � 27 = 49.2 yd' <br /> Add 20%for constructability: 49.2 yd'X �.z = 5q,1 yd' <br /> C. Calculate Sandy Berm Volume: <br /> Total Berm Vo(ume(approx):((Avg.Mound Height-0.5 ft topsoil)x hbund Width x Mound Length)+2=cubic feet <br /> ( 3.7 _ 0.5 )ft x 56.9 ft X 61.2 )�2= 5571.5 ft' <br /> Total Mound Vo(ume-Cleon Sand volume-Rock Volume=cubic Jeet <br /> 5571.5 ft' - 1329.2 ft' - 260.0 ft' = 3982.3 ft' <br /> Divide ft'by 27 ft'/yd'to calculate cubic yards: 3982.3 ft' = 27 = 14],5 yd' <br /> Add 20%for constructability: 147.5 yd' x 1.2 = 177.0 yd' <br /> D. Calculate Topsoil Materiol Vo(ume:Total Mound Width X Total Mound Length X.5 Jt <br /> 56.9 ft X 61.2 ft x o.5 ft = 1741.1 ft' <br /> Divide ft'by 27 ft'/yd'to calculate cubic yards: 1741.1 ft' + 27 = 64.5 yd� <br /> Add 20%for corutructability: 64.5 yd' x 1.2 = ]].4 yd' <br />