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does not have a way to include a base flow, so the pumped flow rate of 0.89 cfs must be added to the <br /> 100-Year runoff rate of 3.36 cfs for a total of 4.25 cfs. Interpolating from the stage vs. discharge table <br /> yields a peak pond elevation of 5532.58. SEDCAD Calculations for the discharge pond area can be found <br /> in Appendix C. <br /> Additional Rip Rap Considerations <br /> It is the author's experience that SEDCAD calculates a rip rap size that is either too small or too large <br /> depending on the method used when compared to other methods. Smaller is acceptable on long <br /> stretches of perimeter ditches, but near outlets and dams,the author prefers to use other methods. <br /> Calculations using other methods can be found in Appendix D.The SEDCAD channel calculations can be <br /> found in Appendices B and C. <br /> References <br /> OSMRE. Guidelines for the Use of the Revised Universal Soil Loss Equation on Mined Lands, Construction <br /> Sites, and Reclaimed Lands. Version 1.06.August 1998. <br /> USDA NRCS Conservation Engineering Division. Technical Release 55(TR-55). June 1986. <br /> USDA NRCS. Web Soil Survey. https://websoilsurvey.sc.eeov.usda.gov/App/HomePage.htm <br /> NOAA National Weather Service. Precipitation Frequency Data Server. <br /> https://hdsc.nws.noaa.goy/hdsc/pfds/ <br /> Blue Mountain Energy 4 Illustration 61 <br />