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OSTP Mound Materials Worksheet UNIVERSITY ��,� <br /> Minnesota Pollution OF MINNESOTA <br /> Control Agency �,1� <br /> ProjectiD: v 06.12.13 <br /> A• Calculate Bed (rock)Vo(ume: Bed Length (2.0 X Bed Width 2.6)X Depth =Volume ft' <br /> 50.0 ft X 10.0 ft X 1.0 = 500.0 ft; <br /> Divide ft3 by 27 ft3/yd'to calculate cubic ards: <br /> 500.0 ft' : 27 = 18.5 yd3 <br /> Add 20%for constructability: 18.5 yd'X 1.2 = 22.2 ' <br /> yd <br /> B. Calculate Clean Sond Volume: <br /> Volume Under Rock bed:Average Sond Depth x Media Width x Media Length =cubic feet <br /> 1.3 ft X 10.0 ft X 50.0 ft = 658.3 ft3 <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 /> Tota(Clean Sand Vo(ume: Volume from Lenqth+ Vo(ume from Width+Vo(ume Under Media <br /> ft' + ft3 + ft' = ft3 <br /> For a Mound on a slope greater than 1% <br /> Ups(ope Volume: ((Upslope Mound Height - 1)x 3 x Bed Length��2=cubic feet <br /> (( 3.2 ft -1) X 3.0 ft X 50.0 )�2= 162.5 ft3 <br /> Downslope Volume: ((Downslope Height- 1) x Downslope Absorption Width x Media Length)-2=cubic feet <br /> (( 3.5 ft-1) X 16.0 ft X 50.0 )-2= 986,7 pt' <br /> Endslope Vo(ume: (Downslope Mound Height- 1) x 3 x Media Width =cubic feet <br /> ( 3.5 ft- 1 ) X 3.0 ft X 10.0 ft = 74.0 f�3 <br /> Total C(ean Sand Vo(ume: Upslope Vo(ume +Downslope Vofume +Ends(ope Vo(ume +Volume Under Medio <br /> 162.5 ft' + 986.7 ft' + 74.0 ft' + 658.3 3 3 <br /> ft = 1881.5 ft <br /> Divide ft'by 27 ft'/yd'to calculate cubic yards: 1881.5 qt3 , 27 = 6q,7 yd' <br /> Add 20%for constructability: 6g,7 = <br /> yd3 X 1.2 83.6 yd' <br /> C. Calculate Sandy Berm Volume: <br /> Tota(Berm Vo(ume(approx): ((Avg.Mound Height-0.5 ft topsoil)x Mound Width x Mound Length)-2=cubic feet <br /> ( 3.3 _ 0.5 )ft X 41 A ft X 72.0 )-2= 4157.4 ft' <br /> Tota(Mound Vo(ume-C(ean Sand volume-Rock Volume=cubic feet <br /> 4157.4 ft' _ 1881.5 ft' _ 500.0 ft3 = 1775.9 q�; <br /> Divide ft'by 27 ft'/yd'to calculate cubic yards: »�5•9 ft' : 27 = 65.8 yd' <br /> Add20%forconstructability: (,5,g Yd3 X �,2 = �g.q yd3 <br /> D. Calculate Topsoil Materia!Vo(ume: Totol Mound Width X Tota(Mound Length X.5 ft <br /> 41.0 ft X 72.0 ft X 0.5 ft = 1476.0 ft3 <br /> Divide ft'by 27 ft'/yd3 to catculate cubic yards: 1476.0 ft' : 27 = 54.7 yd3 <br /> Add 20%for constructability: 54•7 yd3 x 1.2 = 65.6 yd3 <br />