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OSTP Mound Materials Worksheet e-�- UNIVERSITY <br /> Minnesota Pollution OF MINNESOTA <br /> Control Agency <br /> Project D: v 11.09.22 <br /> A.Calculate Bed(rock)Volume:Bed length (2.0)X Bed Width .B)X Depth =Volumeft3 <br /> 0 <br /> 63.0 ftX 10. jft x 1.0 = 630.0 ft3 <br /> Divide ft3 by 27 ft3/yd3 to calculate cubic s: <br /> 630.0 j ft' + 27 = 23.3 yd' <br /> Add 20%for cmutrucWbility: 23.3 yd'X 1.2 = 28.0 jyd3 <br /> B. Calculate Clean Sand Volume: <br /> Volume Under Rock bed:Average Sand Depth x Media Width x Media Length =cubic feet <br /> 1.3 ft X 10.0 ft X 63.0 ft = 819.0 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 I I X I ft = <br /> Volume frau Width=((Upslope Mound Height-1)X Absorption Width Beyond Bed X Media Bed Width) <br /> ft -1) X I X I ft = <br /> Total Clean Sand Volume:Volume from Length+Volume from Width+Volume Under Media <br /> ft' + ft3 + ft3 ft3 <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 /> ((1 3.0 it -1) X 3.0 ft X 1 63.0 1 )-2- 189.0 ft3 <br /> Downslope Volume:((Downslope Height-1) x Downslope Absorption Width x Media Length)+2=cubic feet <br /> (( 3.6 ft-1) x 10.0 ft x 1 63.0 )+2= 819.0 ft3 <br /> Endslope Volume:(Downslope Mound Height-t)x 3 x Media Width=cubic feet <br /> (I 3.6 ft-I ) X 3.0 ft X 10.0 ft = 78.0 ft3 <br /> Total Clean Sand Volume:Upslope Volume +Downslope Volume +Endslope Volume +Volume Under Media <br /> 189.0 ft' + 1 819.0 1 ft' + 78.0 j ft' + 819.0 lw= 1 1905.0 ft3 <br /> Divide ft'by 27 ft3/yd'to calculate cubic yards: 1905.0 ft3 27 = 70.6 yd3 <br /> Add 20%for constructability: 70.6 yd3 X 1.2 = 84.7 yd' <br /> C.Calculate Sandy Berm Volume: <br /> Total Berm Volume(approx):((Avg.Mound Height-0.5 ft topsoil)x Mound Width x Mound Length)+2=cubic feet <br /> (1 3.3 0.5 )ft x 1 39.0 ftX 1 85.0 )+2- 4641.0 ft' <br /> Total Mound Volume-Clean Sand volume-Rock Volume-cubic feet <br /> 4641.0 j ft3 - 1905.0 ft' 630.0 ft3 = 2106.0 ft3 <br /> Divide ft'by 27 ft3/yd'to calculate cubic yards: 2106.0 ft3 + 27 = 78,0 yd3 <br /> Add 20%for constructability: 78.0 yd3 x 1.2 = 93.6 yd' <br /> D.Calculate Topsoil Material Volume:Total Mound Width X Total Mound Length X.5 ft <br /> 39.0 ft X 85.0 ft X 0.5 ft = 1657.5 ft3 <br /> Divide ft'by 27 ft'/yd3 to calculate cubic yards: 1657.5 ft' + 27 = 61.4 yd3 <br /> Add 20%for constructability: 61.4 yd3 x 1.2 - 73.7 yd3 <br />