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OSTP Mound Materiats Worksheet UNtVERSITY ` <br /> Minnesota Pollution OF MI NNESOTA �,���� <br /> Control Agency - <br /> ProjectlD: v 11.09.22 <br /> A. Calculate Bed (rock)Volume:Bed Length (2.0 X Bed Width (2.6)X Depth =Volume ft' <br /> 63.0 ft X 10.0 ft x �.o = 630.0 ft' <br /> Divide ft'by 27 ft'/yd�to calculate cubic ards: <br /> 630.0 ft' : z7 = 23.3 yd' <br /> Add 20%for constructability: 23.3 yd'X 1.2 = 28.0 yd' <br /> B. Calculate Clean Sand Vo(ume: <br /> Volume Under Rock bed:Average Sand Depth x Medio Width x Media Lenqth =cubic feet <br /> 2.1 ft X 10.0 ft x 63.0 ft = 1333,5 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 /> 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 Vo(ume: Volume jrom Length+Vo(ume from Width+Volume Under Media <br /> ft' + ft' + ft3 = ft' <br /> For a Mound on a slope greater than t% <br /> Upslope Volume:((Upslope Mound Height - 1)x 3 x Bed Length)*2=cubic feet <br /> (( 3.7 ft -t) x 3.o ft X 63.0 )�z= 252.0 ft' <br /> Downslope Volume:((Downslope Heiqht- 1) x Downslope Absorption Width x Media Length)�2=cubic feet <br /> (( 4.6 ft-�) X 16.0 ft X 63.0 )�z= 1797.6 ft' <br /> Endslope Volume:(Downs(ope Mound Height- 1) x 3 x Media Width =cubic feet <br /> ( 4.6 ft-1 ) X 3.0 ft X 10.0 ft = 107.0 ft' <br /> Totol Clean Sand Volume:Upslope Volume +Downslope Vo(ume +Endslope Volume +Volume Under Media <br /> 252.0 ft' + 1797.6 ft' + 107.0 ft' + 1333.5 ft'= 3490.1 ft' <br /> Divide ft'by 27 ft'/yd3 to calculate cubic yards: 3490.1 �t3 : z7 = 129.3 yd; <br /> Add 20%for constructability: 129.3 yd'X 1-2 = 155.1 yd3 <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 /> � 4.1 _ 0.5 �ft x 47.0 ft x 91.0 )�z= 7734.2 ft' <br /> Totol Mound Volume-C(ean Sond volume-Rock Volume=cubic jeet <br /> 7734.2 ft' - 3490.1 ft' - 630.0 ft' = 3614.1 ft' <br /> Divide ft'by 27 ft'/yd'to catculate cubic yards: 3614.1 ft' = 27 = 133.9 yd' <br /> Add 20%for constructability: 133.9 yd' x 1.2 = 160.6 yd' <br /> D. Catculate Topsoil Materia!Volume:Total Mound Width X Tota1 Mound Length X.5 ft <br /> 47.0 ft x 91.0 ft x 0.5 ft = 2138.�ft' <br /> Divide ft'by 27 ft'/yd'to calculate cubic yards: 2138.5 ft' = 27 = 79•2 yd3 <br /> Add 20%for constructability: 79.2 yd' x �•2 = 95.0 yd' <br />