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FORWARD LANDFILL <br />SURFACE WATER DESIGN <br />### <br />07/18/2014 <br />US DS Storm <br />1 3 25 <br />2 3 25 <br />2 3 25 <br />2 3 25 <br />3 4 25 <br />5 6 25 <br />Description <br />Design flow in cfs = 1.49 * a * r^2/3 * s^1/2 / n <br />Left side slope <br />Right side slope <br />Bottom width of channel <br />Top of bank depth of channel <br />Top width of channel <br />Manning's friction factor <br />Channel slope = Energy slope for uniform steady state flow condition. <br />Depth of flowing water <br />Top width of flowing water <br />Cr oss sectional area of flowing water. <br />Wetted perimeter of flowing water. <br />Hydraulic radius of flowing water = a/p <br />Velocity of flowing water = Qd/a <br />Velocity head of flowing water <br />Energy grade depth of flowing water = d + v2/2g <br />Froude number of flowing water <br />Average Velocity in Main Channel <br />Average Flow Depth in Main Channel <br />Bed Shear Stress = 62.4 * r * s (lbs/sf) <br />Stream Power = BS * v (ft-lbs/sec/ft) <br />Sediment Diameter at Incipient Motion (FCD, Eq. 11.6) = 12 * BS / (0.047 * (165 - 62.4)) <br />Depth of Scour to Establish Armor Layer (FCD, Eq. 11.8) = 2*dc*(1/.5-1) = 2 * dc <br />Bank Side Slope (H:V) <br />Channel Curve Radius on Bend <br />Channel Top Width of Flow <br />NODES FR fb1 fb2 fb3 FBr FB Va davg BS SP D-Incipient Max V Max BS STABLE <br />feet feet feet feet feet FPS Ft lbs/sf ft-lbs/sec/ft Feet fps lbs/sf <br />0.3 0.50 0.00 0.01 0.51 0.91 2.4 1.6 0.1 0.2 0.02 3.0 1.0 YES <br />0.6 0.50 0.00 0.03 0.53 0.95 4.0 1.5 0.2 1.0 0.05 3.0 1.0 YES <br />0.3 0.50 0.00 0.02 0.52 0.62 2.7 1.9 0.1 0.3 0.02 3.0 1.0 YES <br />0.6 0.50 0.00 0.04 0.54 1.03 4.4 1.5 0.3 1.3 0.06 3.0 1.0 YES <br />0.4 0.50 0.00 0.03 0.53 0.60 3.1 1.9 0.1 0.4 0.03 3.0 1.0 YES <br />0.3 0.50 0.00 0.02 0.52 0.62 2.7 1.9 0.1 0.3 0.02 3.0 1.0 YES <br />Acceptable Channel Lining <br />HYDRAULIC CHANNEL 2 OF 2