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Vs = 4329(T) - (40) (QoI (T) Vt = (Vs) (A) (Cdev) <br /> + 25 <br /> Qo = 0.67 = 1. 45 <br /> (0.60) (0.77) <br /> T - _ 2� + 2706 = 18. 20 minutes = <br /> 1.45 � <br /> �+' <br /> Vs = (4329) (18.2) - (40> (1 .45) t18.2) = 768. 15 CF/Ac " <br /> (Ig,2 + 2 �� <br /> y = (768. 15) (0.60) (0.77> = 355 CF '^� <br /> 0 <br /> t �� <br /> m <br /> o� <br /> � � <br /> Step 7 Outlet Control �^ <br /> This calculation is nat required because the site will � _ <br /> .,., <br /> -1 N <br /> be served by a regional detention pond. � � <br /> ��� <br /> x <br /> m.. <br /> 9tep Outlet Pipe 5�'^ <br /> Xm <br /> Q � �C � �I� �p� 25 year design storm �N <br /> � <br /> dev dev = � <br /> � r- <br /> . m <br /> p = (0.77) (1 .75) t0.60) = 0.81 CFS � <br /> dev � <br /> D <br /> An 8" diameter outlet pipe at a slope of 0.02 will carry = <br /> -� <br /> x <br /> 1 .7 CFS at e� velncity of 5. 2 FFS. N <br /> z <br /> 0 <br /> -i <br /> .. <br /> c� <br /> m <br /> � <br />