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FORWARD LANDFILL a SURFACE WATER DESIGN 07/18/2014 CHANNEL DESIGN Site Data Channel Flow Channel NODES Qd s z1 z2 b y w Lining n R d tw a p r v v2/2g EGL No. US I DS Storm cfs % feet feet feet Material feet feet feet sq-ft feet feet fps feet feet 1 1 3 25 12.3 0.20 2 2 0 2.5 10.0 Earth 0.022 50 1.6 6.4 5.1 7.1 0.7 2.4 0.1 1.7 2 2 3 25 19.1 0.57 2 2 0 2.5 10.0 Earth 0.022 50 1.5 6.2 4.8 6.9 0.7 4.0 0.2 1.8 2 2 3 25 19.1 0.20 2 2 0 2.5 10.0 Earth 0.022 50 1.9 7.5 7.1 8.4 0.8 2.7 0.1 2.0 2 2 3 25 19.1 0.74 2 2 0 2.5 10.0 Earth 0.022 50 1.5 5.9 4.3 6.6 0.7 4.4 0.3 1.8 3 3 4 25 34.4 0.20 2 2 2 2.5 12.0 Earth 0.022 50 1.9 9.6 11.0 10.5 1.0 3.1 4 5 6 25 19.0 1 0.20 1 2 1 2 0 2.5 1 10.0 1 Earth 0.022 50 1.9 7.5 7.0 8.4 0.8 2.7 0.1 2.0 Variable Description Qd Design flow in cfs=1.49*a*r12/3*s11/2/n try z1 Left side slope z2 Right side slope FB b Bottom width of channel y Top of bank depth of channel Zi "- w Top width of channel 1 ZZ r v n Mannings friction factor s Channel slope=Energy slope for uniform steady state flow condition. d Depth of flowing water tw Top width of flowing water a Cross sectional area of flowing water. b P Wetted perimeter of flowing water. r Hydraulic radius of flowing water=a/p v Velocity of flowing water=Qd/a v2/2g Velocity head of flowing water EGL Energy grade depth of flowing water=d+v2/2g FR Froude number of flowing water Ve Average Velocity in Main Channel davg Average Flow Depth in Main Channel BS Bed Shear Stress=62.4*r*s(lbs/sf) SP Stream Power=BS*v(ft-lbs/sec/ft) do Sediment Diameter at Incipient Motion(FCD,Eq.11.6)=12*BS/(0.047*(165-62.4)) Ys Depth of Scour to Establish Armor Layer(FCD,Eq.11.8)=2*dc*(1/.5-1)=2*do Z:1 Bank Side Slope(H:V) R Channel Curve Radius on Bend W Channel Top Width of Flow HYDRAULIC CHANNEL 1 OF 2 0 0 0