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Designer:Company:2-yr 5-yr 10-yr 25-yr 50-yr 100-yr 500-yrDate:1-hour rainfall depth, P1 (in) =0.83 1.09 1.33 1.69 1.99 2.31 3.14Project:a b cLocation:Rainfall Intensity Equation Coefficients =28.50 10.00 0.7862-yr 5-yr 10-yr 25-yr 50-yr 100-yr 500-yrOverland Flow LengthLi (ft)U/S Elevation(ft)(Optional)D/S Elevation(ft)(Optional)Overland Flow SlopeSi (ft/ft)Overland Flow Timeti (min)Channelized Flow LengthLt (ft)U/S Elevation(ft)(Optional)D/S Elevation(ft)(Optional)Channelized Flow SlopeSt (ft/ft)NRCS Conveyance Factor KChannelized Flow VelocityVt (ft/sec)Channelized Flow Timett (min)Computedtc (min)Regionaltc (min)Selectedtc (min)2-yr5-yr 10-yr 25-yr 50-yr 100-yr 500-yr 2-yr 5-yr 10-yr 25-yr 50-yr 100-yr 500-yr0.01 0.01 0.01 0.01 0.04 0.13 0.2730.3347.3443.99 1.02 1.35 1.65 2.09 2.47 2.86 3.89 0.32 0.48 0.71 1.39 6.35 21.99 63.54Cells of this color are for calculated results based on overridesMJGMerrick 1/18/2019GooseHaven Reservoir Drainage Basin ALafayette, Colorado Version 2.00 released May 20170.031500.00Rainfall Intensity, I (in/hr)1.89 17.0143.99100.0361928.00Peak Flow, Q (cfs)Calculation of Peak Runoff using Rational MethodOverland (Initial) Flow TimeChannelized (Travel) Flow TimeTime of ConcentrationRunoff Coefficient, CSubcatchment NameArea(ac)NRCS Hydrologic Soil GroupPercent ImperviousnessA 61.16 A2.0Select UDFCD location for NOAA Atlas 14 Rainfall Depths from the pulldown list OR enter your own depths obtained from the NOAA website (click this link)Cells of this color are for required user-inputCells of this color are for optional override valuesI/ℎ =a ∗ Pb + tt=0.3951.1 − CLS.t=L60KS= L60VComputed t= t+ tRegional t=26− 17i + L6014i+ 9SSelected t= maxt34353 ,minComputed t ,Regional t t34353=5 (urban) t34353=10 (non-urban)Q89: = CIAEXHIBIT E Attachment-Bpage 21 of 35