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<br />LS = ~72 66Jmx(slope factor) <br />The length-slope factor for the RUSLE subroutine is as follows: <br />Where: a. =Representative slope length (ft) <br />m = 0.6 for slope > 10% <br />m = 0.5 for 4% < slope < 10% <br />m = 0.4 for slope = 4% <br />m = 0.3 for slope < 4% <br />The slope factor is a piecewise linear relationship with the slope breakpoint at 8% as shown on Figure <br />5.5, Slope Factor for the RUSLE, contained in the SEDCAD Users Manual. <br />The sediment graph is then routed to a stmcmre using an exponential decay procedure incorporating <br />deposition of a particle size distribution. <br />Inputs for the sedimentology portion of the SEDCAD routine are: <br />• Pacicle size distribution <br />• Runoff volume <br />• Peak discharge <br />• Soil erodibility Factor <br />• Representative slope length <br />• Average slope <br />• Control practice factor <br />• Sediment specific weight <br />• Specific gravity and bulk submerged specit7c gravity <br />• Pond and spillway dimensions <br />Particle Size Distribution <br />• Particle size distribution was determined from the previously subrrutted sediment distribution. <br />