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' 62.5 ft X 10.0 ft X 1.0 = 625.0 ft3 Divide ft3 by 27 ft3/yd3 to calculate cubic yards: 625.0 ft3 = 27 = 23.1 yd3 Add 20%for constructabitity: 23•� yd3 X 1•2 = 2�•8 Yd3 B. Calcutate Clean Sand Vofume: Upslope Volume: ((Ups(ope Mound Height- 1)x 3 x Media Length)=2=cubic feet (( 3.3 ft - 1) X 3.0 ft X 62.5 )=2 - 215.6 ft3 Downstope Volume: ((Downslope Height- 1) x Downslope Absorption Width x Media Length)=2 =cubic feet (( 4.5 ft- 1) X 5.4 ft X 62.5 )=2 - 328.1 ft3 Ends(ope Vo(ume: (Downslope Mound Height- 1) x 3 x Media Width =cubic feet ( 4.5 ft- 1 ) X 3.0 ft X 10.0 ft = 105.0 ft3 Volume Under Rockbed: Average Sand Depth x Media Width x Media Length =cubic feet 1.9 ft X 10.0 ft X 62.5 ft = 1187.5 ft3 Total Clenn Sand Volume: Upslope Volume +Downs(ope Volume +Ends(ope Volume + Yolume Under Media 215.6 ft3 + 328.1 ft3 + 105.0 ft3 + 1187.5 ft3 = 1836.3 ft3 Divide ft3 by 27 ft3/yd3 to catcutate cubic yards: 1836.3 ft3 = 27 = 68.0 yd3 Add 20%for constructability: 68.0 yd3 X 1.2 = 81•6 yd3 G. Calcutate Sandy Berm Volume: Tota[Berm Voiume (approximnte): Average Mound Height x Mound Width x Mound Length T 2 =cubic feet ( 3.9 ft X 47.0 ft X 91.0 )=2 - 8340.2 ft3 Total Mound Volume- C[ean.Sand vo(ume=cubic feet 8340.2 ft3 - 1836.3 ft3 = 6503.9 ft3 Divide ft3 by 27 ft3/yd3 to calcutate cubic yards: 6503.9 ft3 = 27 = 240.9 yd3 Add 20%for constructability: 240.9 yd3 x 1.2 = 289•1 yd3 D. Catcutate Topsoii Materia( Vo(ume: Tota(Mound Width X Tota(Mound Length X.5 ft 47.0 ft X 91.0 ft X 0.5 ft = 2138.5 ft3 Divide ft3 by 27 ft3/yd3 to calcutate cubic yards: 2138.5 ft3 = 27 = 79•2 yd3 Add 20%for constructabitity: �9•2 yd3 x 1.2 = 95•� yd3 I hereby certify that I have completed this woric in accordance with ali applicable ordinances, rules and laws. �_ Joseph Oison 810 10/29/2008 (Designer) � (Signature) {License#) (Date)