Laserfiche WebLink
<br />SEDIMENT VOLUME <br />The following sediment volume calculation is prepared in <br />accordance with U. 9 . Department of Agriculture, Technical <br />Notes, Agronomy Note #59, dated January, 1977. <br />USING THE UNIVERSAL SOIL LOSS EQUATION <br />A= R K L S C P <br />R = rainfall factor 30.00 <br />K = soil erodibility factor 0.32 <br />LS = combined length slope factor <br />A B C D E <br />Length Slope - ft. 400 700 1600 950 950 <br />Slope - % 31 75 70 68 74 <br />LS Factor 17 61 93 71 71 <br />C = cropping management factor <br />A B C D E <br />Crop Management <br />Canopy 25% <br />Cover - Grass <br />Ground Cover 40% 0.09 0.09 0.09 0.09 <br />Crop Management <br />Canopy 75% <br />Cover - Grass <br />Ground Cover 40% 0.08 <br />P = erosion control practice factor = 1.0 <br />SEDIMENT VOLUME <br />AREA R K LS C P A <br />A 30 0.32 17 0.09 1.0 14.69 <br />B 30 0.32 61 0.09 1.0 52.70 <br />C 30 0.32 93 0.08 1.0 71.42 <br />D 30 0.32 71 0.09 1.0 61.34 <br />E 30 0.32 71 0.09 1.0 61.34 <br />AREA ACRES A TONS/YEAR AF/YEAR DR AF/YEAR <br />A 5.5 14.69 80.8 0.032 0.750 0.02 <br />B 3.8 52.70 ~~.3199.2 0.080 0.250 0.02 <br />C 10.9 71.42 778.5 0.311 0.250 0.08 <br />D 3.9 61.34 239.2 0.096 0.500 0.05 <br />E 4.5 61.34 276.0 0.110 0.250 0.03 <br />TOTAL REQUIRED SEDIMENT VOLUME 0.197 <br /> C-14 3-29-91 <br />