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8" N-12 full pipe CALCS <br />TWO RIVERS ENGINEERING H1fDRAULIC CALCULATIONa <br />PROJECT NAME Leibald Watercrak <br />PROJECT NUMBER 95-013 <br />DATE 7/30/96 <br />FULL PIPE PARAMETERS <br />MANNING's N 0.011 ADS N-12 <br />SLOPE, S 0.0046 <br />FORMULAe V�1.486(R^.67)(S^.5)/N FORMULA <br />VELOCffY - 9.16231123 (R^.67) FPS CAPACffY , Q, CFS <br />Q�(0.463/N)(D�2.675^.5) <br />DIAMETER, IN. VELOCffY ,FPS DIAMETER, IN. CAPACffY, CFS <br />4 1.73 4 0.15 <br />6 2.28 6 0.45 <br />8 2.76 8 0.97 <br />12 3.62 12 2.85 <br />15 4.21 15 5.18 <br />18 4.75 18 8.43 <br />AREA TABLE <br />FORMULA A = PIE D^2/4 <br />DIAMETER, IN. <br />FULL <br />4 0.09 <br />6 0.20 <br />8 0.35 <br />12 0.79 <br />15 1.23 <br />18 1.77 <br />WETTED PERIMETER TAOLE HYDRAULIC RADIUS <br />FORMUTA WP = PIE D <br />FORMULA R • A/P <br />DIAMETER, IN. WP, FT DIAMETER, IN. <br />4 1.05 4 0.08 <br />6 1.57 6 0.13 <br />8 2.09 8 0.17 <br />12 3.14 12 0.25 <br />15 3.93 15 0.31 <br />18 4.71 18 0.38 <br />Page 1 <br />;1 <br />