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ROCKY MOUNTAIN (THUNDERSTORM) UNIT HYDROGRAPH <br />Dam Name <br />Hours <br />Sub -Basin 1 <br />0.23 <br />Drainage Area = <br />4 sq. miles <br />Basin Slope = <br />1547 ft./mile <br />L = <br />4.55 mi., Length of Watercourse <br />Lca = <br />2 mi., Distance to Centroid <br />Kn = <br />0.25 -, Ave. Weighted Manning's n <br />DAMID: 000000 <br />Lg+D/2 = <br />4.26 <br />Hours <br />Basin Factor= <br />0.23 <br />12 <br />V. = <br />107.56 <br />cfs/Day <br />Qs = <br />25.2 <br />* q, cfs <br />PARAMETERS: <br />Calculated: Lag Time, Lg = 4.01 Hours Unit Duration, D = 43.74 minutes <br />Calculated Timesteo = 12.78 minutes <br />21 -Dec -17 <br />INITIALS <br />Data to be used Unit Duration, D = 30 minutes, round down to nearest of 5, 10, 15, 30, 60, 120, 180, or 360 <br />in Analysis Selected Timestep = 10 minutes, integer value evenly divisible into 60 <br />800 <br />loo <br />000 <br />sou <br />400 <br />a <br />x <br />U <br />o you <br />200 <br />loo <br />Unit Inflow Hydrograph <br />0 <br />000 S.00 luno lsoo 2uoo 2S0o 3000 <br />TIME, (Hours) <br />UI Record - Unit Graph <br />10 minute interval <br />UI <br />3 <br />5 <br />6 <br />9 <br />12 <br />19 <br />31 <br />55 <br />97 <br />149 <br />UI <br />195 <br />240 <br />286 <br />332 <br />380 <br />430 <br />480 <br />530 <br />580 <br />630 <br />UI <br />680 <br />706 <br />670 <br />634 <br />595 <br />556 <br />518 <br />480 <br />440 <br />403 <br />UI <br />365 <br />323 <br />287 <br />256 <br />230 <br />208 <br />190 <br />174 <br />160 <br />147 <br />UI <br />137 <br />127 <br />119 <br />112 <br />105 <br />98 <br />92 <br />87 <br />83 <br />78 <br />UI <br />74 <br />71 <br />68 <br />65 <br />61 <br />59 <br />56 <br />54 <br />51 <br />49 <br />UI <br />47 <br />45 <br />44 <br />43 <br />41 <br />40 <br />38 <br />37 <br />36 <br />35 <br />UI <br />33 <br />32 <br />31 <br />30 <br />29 <br />28 <br />27 <br />26 <br />25 <br />25 <br />UI <br />24 <br />23 <br />22 <br />21 <br />21 <br />20 <br />19 <br />19 <br />18 <br />18 <br />UI <br />17 <br />16 <br />16 <br />15 <br />15 <br />14 <br />14 <br />13 <br />13 <br />12 <br />UI <br />12 <br />12 <br />11 <br />11 <br />11 <br />10 <br />10 <br />9 <br />9 <br />9 <br />UI <br />8 <br />8 <br />8 <br />8 <br />7 <br />7 <br />7 <br />7 <br />7 <br />6 <br />USBR calculated unitgraph peak = <br />716 <br />Interpolated Peak = <br />706 <br />