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5 <br /> TR55 Tc Worksheet <br /> Hydraflow Hydrographs Extension for Autodesk®Civil 3D®by Autodesk,Inc.v2024 <br /> Hyd. No. 2 <br /> 10-Acre Basin <br /> Description A B C Totals <br /> Sheet Flow <br /> Manning's n-value = 0.050 0.011 0.011 <br /> Flow length (ft) = 0.0 0.0 0.0 <br /> Two-year 24-hr precip. (in) = 0.00 0.00 0.00 <br /> Land slope (%) = 0.00 0.00 0.00 <br /> Travel Time (min) = 0.00 + 0.00 + 0.00 = 0.00 <br /> Shallow Concentrated Flow <br /> Flow length (ft) = 1500.00 0.00 0.00 <br /> Watercourse slope (%) = 30.00 0.00 0.00 <br /> Surface description = Unpaved Paved Paved <br /> Average velocity (ft/s) =8.84 0.00 0.00 <br /> Travel Time (min) = 2.83 + 0.00 + 0.00 = 2.83 <br /> Channel Flow <br /> X sectional flow area (sqft) = 0.00 0.00 0.00 <br /> Wetted perimeter(ft) = 0.00 0.00 0.00 <br /> Channel slope (%) = 0.00 0.00 0.00 <br /> Manning's n-value = 0.015 0.015 0.015 <br /> Velocity (ft/s) =0.00 <br /> 0.00 <br /> 0.00 <br /> Flow length (ft) ({0})0.0 0.0 0.0 <br /> Travel Time (min) = 0.00 + 0.00 + 0.00 = 0.00 <br /> Total Travel Time,Tc 3.00 min <br />