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OSTP Mound Materiats <br /> UNIVERSITY <br /> Minnesota Pollution Worksheet OF MINNESOTA _ t��"�,��J <br /> Control Agency <br /> A. Calculate Bed (rock}Volume: Bed Length (2.C)X Bed Width (2.B)X Depth =Volume (ft') <br /> 63.0 ft x 10.0 ft X 1.0 = 630.0 ft' <br /> Divide ft3 by 27 ft3/yd3 to catculate cubic yards: <br /> 630.0 ft' : z7 = 23.3 yd3 <br /> Add 20%for constructabitity: 23.3 yd3 X 1.2 = 19.4 yd3 <br /> B. Calculate Clean Sand Volume: <br /> Upslope Votume: ((Upslope Mound Height - f)x 3 x Bed Length)+2=cubic feet <br /> (( 3.0 ft - 1) X 3.0 ft x 63.0 )�-2= 189.0 ft' <br /> Dow►nlope Volume: ((Dowr►slope Heiyht- 1) x Downstope Absorption Width x Medio Length)+2=cubic feet <br /> (( 3.6 ft- t) x 5.4 ft x 63.0 )+2= 441.0 ft3 <br /> fndslope Volume: (Downslope Mound Height- 1} x 3 x Media Wldth =cubic feet <br /> ( 3.6 ft- 1 ) X 3.0 ft X 10.0 ft = 78.0 ft' <br /> Vo(ume Under Rockbed:Avernge Sand Depth x Media Width x Media Length =cubic feet <br /> �.3 0.0 1.3 ft x 10.0 ft x 63.0 ft = 819.0 ft3 <br /> Totai Clean Sond Volume: Upslope Volume +pownslope Volume +Endslope Volume +Volume Under Media <br /> 189.0 ft' + 441.0 ft' + 7800 ft3 + 819.0 ft'= 1527.0 ft' <br /> Divide ft'by 27 ft'/yd3 to calculate cubic yards: 1527.0 ft' : 27 = 56.6 yd3 <br /> Add 20%for constructability: 56.6 yd3 X 1.2 = 67.9 yd3 <br /> C. Calculate Sandy Berm Volume: 3.3 0.0 <br /> Totnl Berm Volume(npprox): ((Avg. Mound Height- .5 ft topsoil)x Mound Width x Mound Length)=2=cu. ft. <br /> ( 3.3 _ 0.5 )ft x 39.0 ft x 85.0 )f 2= 4641.0 ft' <br /> Tota!Mound Volume-Ctean Sand volume-Rock Votume=cubic feet <br /> 4641.0 ft' - 1527,0 ft3 - 630.0 ft3 = 2484.0 ft3 <br /> Divide ft'by 27 ft3/yd3 to catculate cubic yards: 2484.0 ft3 : 27 = 92.0 yd3 <br /> Add 20%for constructability: 92.0 yd3 x 1.2 = 110.4 yd' <br /> D. Calculate Topsoil Moteria!Vofume:Total Mound Width X Total Mound Length X.5 ft <br /> 34.0 ft x 85.0 ft x 0.5 ft = 1657.5 ft3 <br /> Divide ft3 by 27 ft3/yd'to catcutate cubic yards: 1657.5 ft3 : Z7 = 61.4 yd3 <br /> Add 20%for constructabitity: 61.4 yd3 x 1.2 = 73.7 yd' <br /> I hereby certify that I have completed this work in accordance with all applicable ordinances,rules and laws. <br /> Joseph J Olson - �� 810 04/09/10 <br /> (Designer) (Signature) (License#) (Date) <br />