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� OSTP Mound Materials Worksheet L�IIVERSITY \ <br /> Minnesota Pollution UF MII�NESOTA ''` ,�`�"w <br /> Co�trol Agency - <br /> ProjectlD� 5'19i15 ���,pq,2Z <br /> A. Calculate Bed Irockl Volume:8ed Lenqth 12.C1 X Bed Widlh 12.BIX Dep[h = Volume ift'I <br /> 63.0 ft x 10.0 fc x �.o = 630.0 tc' <br /> Divide ft by 27 f['�yd'to calculate wbic ards: <br /> 630.0 ft = z7 = 23.3 yd' <br /> Add 20�for constructabiGty: 23.3 yd x 1.2 = 28.0 yd'' <br /> B. Calculate Clean Sond Volume: <br /> Volume Under Rock bed:Averoge Sand Depth x Media Width x Media tength =cubic feet <br /> 2.1 t� x 10A st x �� 63.0 tc = 1323.O�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 AAedia Bed Lengthi <br /> �� ft - 11 X � X �ft = � <br /> Volume from Width=11Upslope Mound He�ght- t�x AbsorpUon Width Beyond Bed X Media Bed Width� <br /> � ft - 11 X �� X �ft " � <br /> To[ol Cleon Sand Volume: Volume Jrom Length� Volume/rom Width- Volume Under Media <br /> � ft � � ft" - � ft = �ft, <br /> For a Mound on a slope greater than 1% <br /> Upslope Volume: I(Upslope Mound Heigh[ - 1 1 x 3 x 8ed Length�-2=cubic feet <br /> �� 3.5 ft - i i x 3.0 ft x 63.0 )-2= 236.3 fc <br /> pownslope Volume:IlDownslope Height� 7/ x Downslope Absorption Width x Media Length I-2 =cub�c feet <br /> i( 4.7 ft t� x 16.0 ft x 63.0 �-2= 1864.8 ft' <br /> Endslope Volume: IDownsiope Mound He�ghi- f) x 3 x Media Width =cubk feet <br /> i 4.7 ft� 1 1 X 3.0 ft X 10.0 fc = 111.0 ft' <br /> Total Clean Sand Yolume:Upslope Volume �Downslope Volume -Endslope Volume - Volume Under Medio <br /> 236.3 fc' • 1864.8 ft' - 11 1.0 ft' � 1323.0 ft'= 3535.1 fc' <br /> Divide ft'by 27 ft'!yd'to calculate cubic yards: 3535.1 ft = 2� = 130.9 yd' <br /> Add 20%for constructabil�ry: � 130.9 I, yd x 1.Z - ' 157.1 yd' <br /> C. Calculate Sondy 6erm Volume: <br /> Tota!8erm Volume lapprox/:(�Avg.Mound Height-0.5 ft topsall x Mound Wid[h x,v�ound leng[h�-2 =cubic feet <br /> i 4.1 . 0.5 �ft x 45.0 tc x 93.0 1-2 = 7533J ft <br /> 7o[a!Mound Volume-Gean Sond volume-Rock Yolume=cubic/ee[ <br /> 7533.7 ft' - 3535.1 fc - 630.0 fc' = 3368.6 ft' <br /> Divide ft'by 27 ft'/yd'to calculate cubic yards: 3368.6 ft` s 27 = 124.8 yd' <br /> Add 20�,for constructability: 124.8 yd' x t.2 - 149.7 yd' <br /> D. Calculate Topsoi!Moterial Volume Totol Mound Width X Toro!Mound Length X.5 Jt <br /> 45.0 ft x 93.0 fc x o.5 ft = 2092.7 fr <br /> Oivide ft'by 27 ft'/yd'to calculate cubic yards: 2092J ! rt' ; 27 = 77.5 yd' <br /> Add 20%for constructability: 77.5 yd' x t.1 = 93.0 yd' <br />