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SCS Table <br />Table 8.8 Selected USLE C Values for Construction, Mining, <br />W Forest Lands. <br />Condition <br />C factor <br />References <br />Condition <br />C factor <br />Reference <br />1. Bare soil conditions <br />5. Undisturbed forest <br />Undisturbed except scraped <br />0.66 -1.30 <br />• <br />100 -75% canopy, 100 -90% litter <br />OMI-O.O01 <br />c <br />Compacted <br />35 -2096 canopy. 70-40% liner <br />0.003-0.009 <br />C <br />Smooth <br />1.00 -1.40 <br />°d <br />6. Permanent pasture and brush cover <br />Roo raked <br />0.90 -1.20 <br />° <br />0% canopy. 80% ground cover <br />Disk tillage <br />Grass <br />0.013 <br />° <br />Fresh <br />1.00 <br />• <br />Weeds <br />0.043 <br />° <br />After one rain <br />0.89 <br />• <br />50% Emsh, 80% ground cover <br />2. Mulch <br />Grass <br />0.012 <br />e <br />Straw <br />7. Mechanically prepared woodland sites <br />03 toll/ac <br />0.30 <br />ad <br />Burned, 10% cover at ground <br />1.0 tooslac <br />0.18 <br />•d <br />Good soil <br />0.240 <br />e <br />2.0 tom/ac <br />0.09 <br />ad ' <br />Poor soil <br />0.360 <br />° <br />4.0 tons/ac <br />0.02 <br />•d <br />Burned. 0% cover at ground <br />Wood chips <br />Good soil <br />0.260 <br />t <br />OS tons* <br />0.90 <br />ad <br />Poor soil <br />0.450 <br />° <br />2A totWac <br />0.70 <br />ad <br />Disked, 0% cover at ground <br />4.0 tons/ac <br />0.42 <br />°d <br />Good soil <br />0.720 <br />e <br />6.0 tons/ac <br />0.22 <br />°d <br />Poor so il <br />0.940 <br />3. Chemical binders <br />Asphalt emulsion, 605 gallac <br />0.14-0.52 <br />• <br />Aquwn, T a-nck <br />0.67 <br />° <br />4. Seedings <br />No prepared seedbed <br />New planting <br />0.64 <br />• <br />After 60 days <br />Prepared:e�b� <br />034 <br />• <br />New planting <br />0.40 <br />° <br />After 60 days <br />0.05' <br />• <br />Note. Additional values are given in Appendix 8B. <br />nhospotation Research Board (1980). <br />0 1lartiiekt et at. (1988). <br />eWiscMaeier and Smith (1978). <br />'r AW et at. (1972). C factors for mulch vary depending on slope length and steepness. Slope length limits apply (see Appendix 8B. Table 8113). <br />REVISED AUGUST 2009 Attachment 2.05.3(3) -22 -6 <br />