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t CIA <br />;£s <br />.4.9 <br />L0.95 <br />8.79 <br />7.36 <br />6.28 <br />5.56 <br />storm <br />: Feet) <br />detention <br />5040 <br />3280 <br />e rainfall <br />m duration <br />;let designed <br />SI;. <br />.• r <br />-r. <br />' e-; <br />Event NO. 1 Area’s or Storage Volumes irrum <br />Inflow <br />V = l/2bh = 1/2(10)(14.9) + 1/2(20)(14.9) <br />74.5 + 14.9 = 223.5 X 60 = 13,410 ft. <br />Outflow <br />V = 1/2 (17 ."■>) (9.3) + 1/2 (12.5) (9.3) <br />81.4 + 58.12 = 139.5 x 60 = 8,370 ft.^ <br />Event No. 2 <br />Inflow <br />V * l/2(.../) (10.95) + 10(10.95) + 1/2 (14.5) (10.95) <br />54.75 + 109.5 + 79.4 = 243.65 x 60 * 14,619 ft.^ <br />Outflow <br />1/2(22)(10.95) + 1/2(12.5)(10.95) <br />120.45 + 68.44 = 188.80 = 11,333.4 ft.3 <br />s.,v; ■■"’m'iTmsifjkV-^-iXr::x;;:r <br />..‘•5V ■ ;“V. "•; ••. ,* •:.• • . ■. ' ' : .^. ' ?*’ ’• t <br />yft ':; - ;y: <br />^ v' : x-- r'\: -b^-Vv <br />.*..**. '•'•f ••. ..*:A^m$ <br />,VX-:W <br />c ■ ;■ <br />'''.a <br />:‘s ''i