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Particle Size Percent Finer <br /> 2.0000 100.0 <br /> 1.0000 100.0 <br /> 0.1000 85.0 <br /> 0.0500 80.0 <br /> 0.0020 20.0 <br /> 0.0001 0.0 <br /> The specific gravity of the soil and the submerged bulk specific gravity <br /> were estimated based on the reference cited above and are 2.5 and 1.25, <br /> respectively. <br /> Length - Slope Factors (L,S) <br /> The slope length (L) and the slope (S) were determined together <br /> according to the equation (Barfield et al . , 1981) : <br /> LS = [ . ]m (430x2 + 30x + 0.43) <br /> 7—L -----6—.6T3 <br /> where x is slope length, X is sin e , e is slope angle and m is an <br /> exponent dependent upon slope given by: <br /> slope < 3%; m = 0.3 <br /> slope = 4%; m = 0.4 <br /> slope > 5%; m = 0.5 <br /> and x = Stream Elevation Difference <br /> The Slope Length <br /> x = 990 feet H = 59 feet <br /> x = 990 = 0.0596 <br /> 59 <br /> LS = [99010.5 (430(0.0596)2 + 30(0.0596) + 0.43) <br /> 7776 <br /> = 2.09 <br /> 8 <br />