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STANDARD FORM SF -1 <br />TIME OF CONCENTRATION <br />Canyon Dolomite - Old Quarry <br />Final Drainage Report <br />f:nlrd�Mrl hv' .Inhn I -4—k. R-A—n �nqm I5 <br />Calculated using formulat = (1 87' (1.1 - C10)' L^0.5)1(S^0.333), where C10 = runoff coeff for 10 -year storm, L = overland flow length (ft), and S = slope in % <br />For travel time velocity, use MannIng's equation for a grass -lined channel, v = 1.491n ' M0.667' s'0.5 <br />Where r = hydraulic radius = area / wetted perimeter, n = Manning's "n" = 0.035; s = slope in ft/ft <br />Page A-5 hydrology—Canyon-Dolomit-RevOaday2015.xlsx tc <br />Sub -Basin Data Initial Overland Time (t,) <br />Travel Time (t) <br />t, = t; +4 <br />Check i< Final t, Remarks <br />Z <br />3 <br />O;erland <br />Flow <br />Length, L, <br />Designation Area, Ac C10 Ft. Slope, % t;, min' <br />oncen- <br />trated <br />Flow <br />Length, <br />Ft. <br />Vekx:dy, <br />Slope, % FPS " <br />Comp. t�, <br />t, min min <br />t, _ <br />(U180) <br />+10, <br />min Final t�, min <br />1 2 3 4 5 6 <br />7 <br />8 9 <br />10 ii <br />14 <br />PROPOSED <br />CONDITIONS <br />1 Quarry—outlet 33.70 0.28 500 25.52 11.6 <br />2314 <br />25.52 8.36 <br />4.6 16.2 <br />25.6 16.2 <br />Calculated using formulat = (1 87' (1.1 - C10)' L^0.5)1(S^0.333), where C10 = runoff coeff for 10 -year storm, L = overland flow length (ft), and S = slope in % <br />For travel time velocity, use MannIng's equation for a grass -lined channel, v = 1.491n ' M0.667' s'0.5 <br />Where r = hydraulic radius = area / wetted perimeter, n = Manning's "n" = 0.035; s = slope in ft/ft <br />Page A-5 hydrology—Canyon-Dolomit-RevOaday2015.xlsx tc <br />