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SEDCAD 4 for Windows <br />!`.w..:..1.1 <br />Id= -�MSn oe. W. 1 Q,4..-K <br />Structure Detail: <br />Structure #18 (ROMP Channel <br />F14 <br />Trapezoidal Riprap Channel Inputs: <br />. -- —, - - <br />=_ — - — <br />- z_-�— .. —i .r, <br />—r ——" <br />O <br />35.52 ds <br />Depth: <br />3.00 1.5:1 1.5:i 50.0 <br />1.00 <br />Riprap Channel Results: <br />PARER Method - Steep Slope Design <br />*Based on input from SedCad, the Formula D50 =((V'S ^0.17)/7.5) "2 (in feet) was used <br />to determine the required D50 size, as SedCad can't seem to handle a slope of 50% <br />and a flow of nearly 36 cfs while using the Simons /OSM steep slope method. The D50 <br />formula calculates a D50 value of 19 °, but for simplicity, 18" is specified <br />Filename: Pond F- 100year wA <br />Printed 02 -02 -2012 <br />TR -72 App. B-25 02112 <br />Design Discharge: <br />35.52 ds <br />Depth: <br />0.79 ft 1.79 ft <br />Top Wldth: <br />5.37 R 8.37 ft <br />Velocity: <br />10.75 Fps <br />X-Section Area: <br />330 sq ft <br />Hydraulic Radius: <br />0.565 R <br />Froude Number: <br />2.41 <br />Marming's n: <br />0.0670 <br />Dmin: <br />X5.00 k <br />D50: <br />9:00 In 18" Requlred" <br />Dmax: <br />12.09 In <br />*Based on input from SedCad, the Formula D50 =((V'S ^0.17)/7.5) "2 (in feet) was used <br />to determine the required D50 size, as SedCad can't seem to handle a slope of 50% <br />and a flow of nearly 36 cfs while using the Simons /OSM steep slope method. The D50 <br />formula calculates a D50 value of 19 °, but for simplicity, 18" is specified <br />Filename: Pond F- 100year wA <br />Printed 02 -02 -2012 <br />TR -72 App. B-25 02112 <br />