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Glantz Warehouso 6-19-87 <br /> 87-4509 Pg. 3/4 <br /> Hydraulic Calculations <br /> Area to be retsined = 0.22 acrer�. <br /> Area to be bypassed = 0 acres <br /> Area Retai�ed - runoff coefficient <br /> cex = 0. 15 (light grass to bare ground) <br /> Cdev Q 0.90 <br /> Time of Concentration <br /> Length � 140 ft. <br /> Slope a 1.438 <br /> Vel = 0.65 fpe (grass) <br /> TC � 10 + 140 = 12. . i <br /> 0.85 (60) <br /> �, = 12.75 minutes <br /> Rainfail intensity - ],o year etorm <br /> I10 4 1.65 in/hr. (Everett• IDF curve) <br />� <br />