Examples of RUSLE practice management factors for construction sites. Source: NYDEC, 2005.
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Surface condition P factor
Bare soil loose 1.0
Freshly disked or rough irregular surface 0.9
Compact smooth by equipment up and down hill 1.3
Compact smooth by equipment across slope 1.2
Contoured furrows
Slope (%) Maximum downslope length (ft) P factor
1-2 350 0.6
3-5 250 0.5
6-8 200 0.5
9-12 125 0.6
13-16 75 0.7
17-20 60 0.8
>20 50 0.8