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Sedcad Notes: <br />• Revegetated Soil Piles with good cover <br />Test case is the west side of the D Portal topsoil stockpile. <br />Soils -Colorow loam and Cushman silt loam. Both K = .24. HSG = B per Table I-2 (page II.I- <br />18) <br />Structure #1 <br />CN = 62 Arid & semiazid rangelands -herbaceous -mixture of grass, weeds, and low- <br />growing brush, with brush the minor element -good condition. <br />C = 0.013 From RUSLE 1.06 <br />^ Time invariant <br />^ General land use - 9 -disturbed fill, topsoil, no rock cover. <br />• Vegetation info from plant community and site potential <br />^ Plant community - 12. Pasture/bunchgrass <br />^ Annual site production potential = 20001bs/ac for Colorow soils per NRCS. <br />Only 1000 lbs/ac used for this model. <br />^ 25% canopy cover -conservative estimate <br />^ 0.5' average fall height <br />• Roughness 1.0 -mixed grass prairie. <br />• Disturbance -yes <br />^ 10 yeazs since last disturbance (17 years actual) <br />• 75% total ground cover (conservative estimate) <br />P = 1 Conservative <br />L = 153 measured <br />S = 23% measured <br />Area = 2.22 acres <br />• <br />