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OSTP Mound Materiats Worksheet uNI�ERSITY <br /> Minnesota Pollution OF MINNESOTA �`" ° <br /> Control Agency ,-`` <br /> Project I : v 11.09.22 <br /> A. Calculate Bed (rock)Volume: Bed Length (2.0 X Bed Width 2.6)X Depth =Volume ft' <br /> 26.0 ft X 10.0 ft X t.o = 260.0 ft' <br /> � Divide ft'by 27 ft3/yd3 to calculate cubfc ards: <br /> 260.0 ft' = 27 = 9.6 yd' <br /> Add 20%for constructability: 9.6 yd'X 1.2 = 1 1.6 yd' <br /> B. Calculate Clean Sand Volume: <br /> Volume Under Rock bed:Average Sand Depth x Media Width x Med�a Length =cubic feet <br /> 1.7 ft X 10.0 ft x 26.0 ft = 450.7 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 /> Totol Cleon Sand Vo(ume: Volume from Length+Volume jrom Width+ Volume Under Media <br /> ft' + ft' + ft3 = 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 /> (( 3.3 ft -�) X 3.Oft x 26.0 )�2= 91.0 ft' <br /> Downslope Volume: ((Downs/ope Height- 1) x Downslope Absorption Width x Media Length)�2=cubic feet <br /> (( 4.1 ft-1) X 16.0 ft X 26.0 )*2= 651.7 ft' , <br /> Endslope Volume:(Downslope Mound Height- 1) x 3 x Medio Wid[h =cubic feet <br /> ( 4.1 ft-� ) X 3.o ft X 10.0 ft = 94.0 ft' <br /> Totol Clean Sand Vo(ume:Upslope Volume +Downslope Volume +Endslope Volume +Volume Under Media <br /> 91.0 ft' + 651.7 ft' + 94.0 ft' + 450.7 ft'= 1287.4 ft' <br /> Divide ft'by 27 ft'/yd'to calculate cubic yards: 1287.4 ft' + 27 = 47.7 yd' <br /> Add 20%for corntructability: 47.7 yd'X 1.2 = 57.2 yd' <br /> C. Calcutate Sondy Berm Volume: <br /> Totol Berm Volume(approx): ((Avg.Mound Height-0.5 ft topsoil)x Mound Width x Mound Len th)+2=cubic feet <br /> ( 3.7 _ 0.5 )ft X 44.4 ft x 59.1 )�z= 4240.2 ft' <br /> Toto(Mound Volume-Clean Sand volume-Rock Volume=cubic feet <br /> 4240.2 ft' - 1287.4 ft' - 260.0 ft' = 2692.8 ft' <br /> Divide ft'by 27 ft'/yd3 to calcutate cubic yards: 2692.8 ft' = 27 = 99.7 yd' <br /> Add 20%for corutructability: 99.7 yd3 x 1.2 = 119.7 yd' <br /> D. Calculate Topsoil Materfal Volume:Total Mound Width X Total hbund Length X.5 ft <br /> 44.4 ft x 59.1 ft X 0.5 ft = 1311.4 ft' <br /> Divide ft'by 27 ft'/yd'to calculate cubic yards: 1311.4 ftl + 27 = 48.6 yd' <br /> Add 20%for corutructability: 48.6 yd} x 1.2 = 58.3 yd' <br />