CORRESPONDENCE_4/7/22 ASP RCSI APPENDICES

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FORWARD LANDFILL SURFACE WATER DESIGN ### 07/18/2014 Channel Qd s z1 z2 b y w Lining n R d tw a p r v v2/2g EGL No.US 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 0.2 2.0 4 5 6 25 19.0 0.20 2 2 0 2.5 10.0 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 * r^2/3 * s^1/2 / n z1 Left side slope z2 Right side slope b Bottom width of channel y Top of bank depth of channel w Top width of channel n Manning's 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. 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 Va 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) dc 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 * dc Z:1 Bank Side Slope (H:V) R Channel Curve Radius on Bend W Channel Top Width of Flow CHANNEL DESIGN NODES Site Data Channel Flow HYDRAULIC CHANNEL 1 OF 2