The
following table shows LS factors for freshly prepared constructed and other
highly disturbed soil condition with little or no cover (not applicable
to thawing soil)
| Slope
(%) |
Slope Length (ft.)
|
|
<3 |
6 |
9 |
12 |
15 |
25 |
50 |
75 |
100 |
150 |
200 |
250 |
300 |
400 |
600 |
800 |
1000 |
| 0.2 |
0.05 |
0.05 |
0.05 |
0.05 |
0.05 |
0.05 |
0.05 |
0.05 |
0.05 |
0.05 |
0.06 |
0.06 |
0.06 |
0.06 |
0.06 |
0.06 |
0.06 |
| 0.5 |
0.07 |
0.07 |
0.07 |
0.07 |
0.07 |
0.07 |
0.08 |
0.08 |
0.09 |
0.09 |
0.10 |
0.10 |
0.10 |
0.11 |
0.12 |
0.12 |
0.13 |
| 1.0 |
0.09 |
0.09 |
0.09 |
0.09 |
0.09 |
0.10 |
0.13 |
0.14 |
0.15 |
0.17 |
0.18 |
0.19 |
0.20 |
0.22 |
0.24 |
0.26 |
0.27 |
| 2.0 |
0.13 |
0.13 |
0.13 |
0.13 |
0.13 |
0.16 |
0.21 |
0.25 |
0.28 |
0.33 |
0.37 |
0.40 |
0.43 |
0.48 |
0.56 |
0.63 |
0.69 |
| 3.0 |
0.17 |
0.17 |
0.17 |
0.17 |
0.17 |
0.21 |
0.30 |
0.36 |
0.41 |
0.50 |
0.57 |
0.64 |
0.69 |
0.80 |
0.96 |
1.10 |
1.23 |
| 4.0 |
0.20 |
0.20 |
0.20 |
0.20 |
0.20 |
0.26 |
0.38 |
0.47 |
0.55 |
0.68 |
0.79 |
0.89 |
0.98 |
1.14 |
1.42 |
1.65 |
1.86 |
| 5.0 |
0.23 |
0.23 |
0.23 |
0.23 |
0.23 |
0.31 |
0.46 |
0.58 |
0.68 |
0.86 |
1.02 |
1.16 |
1.28 |
1.51 |
1.91 |
2.25 |
2.55 |
| 6.0 |
0.26 |
0.26 |
0.26 |
0.26 |
0.26 |
0.36 |
0.54 |
0.69 |
0.82 |
1.05 |
1.25 |
1.43 |
1.60 |
1.90 |
2.43 |
2.89 |
3.30 |
| 8.0 |
0.32 |
0.32 |
0.32 |
0.32 |
0.32 |
0.45 |
0.70 |
0.91 |
1.10 |
1.43 |
1.72 |
1.99 |
2.24 |
2.70 |
3.52 |
4.24 |
4.91 |
| 10.0 |
0.35 |
0.37 |
0.38 |
0.39 |
0.40 |
0.57 |
0.91 |
1.20 |
1.46 |
1.92 |
2.34 |
2.72 |
3.09 |
3.75 |
4.95 |
6.03 |
7.02 |
| 12.0 |
0.36 |
0.41 |
0.45 |
0.47 |
0.49 |
0.71 |
1.15 |
1.54 |
1.88 |
2.51 |
3.07 |
3.60 |
4.09 |
5.01 |
6.67 |
8.17 |
9.57 |
| 14.0 |
0.38 |
0.45 |
0.51 |
0.55 |
0.58 |
0.85 |
1.40 |
1.87 |
2.31 |
3.09 |
3.81 |
4.48 |
5.11 |
6.30 |
8.45 |
10.40 |
12.23 |
| 16.0 |
0.39 |
0.49 |
0.56 |
0.62 |
0.67 |
0.98 |
1.64 |
2.21 |
2.73 |
3.68 |
4.56 |
5.37 |
6.15 |
7.60 |
10.26 |
12.69 |
14.96 |
| 20.0 |
0.41 |
0.56 |
0.67 |
0.76 |
0.84 |
1.24 |
2.10 |
2.86 |
3.57 |
4.85 |
6.04 |
7.16 |
8.23 |
10.24 |
13.94 |
17.35 |
20.57 |
| 25.0 |
0.45 |
0.64 |
0.80 |
0.93 |
1.04 |
1.56 |
2.67 |
3.67 |
4.59 |
6.30 |
7.88 |
9.38 |
10.81 |
13.53 |
18.57 |
23.24 |
27.66 |
| 30.0 |
0.48 |
0.72 |
0.91 |
1.08 |
1.24 |
1.86 |
3.22 |
4.44 |
5.58 |
7.70 |
9.67 |
11.55 |
13.35 |
16.77 |
23.14 |
29.07 |
34.71 |
| 40.0 |
0.53 |
0.85 |
1.13 |
1.37 |
1.59 |
2.41 |
4.24 |
5.89 |
7.44 |
10.35 |
13.07 |
15.67 |
18.17 |
22.95 |
31.89 |
40.29 |
48.29 |
| 50.0 |
0.58 |
0.97 |
1.31 |
1.62 |
1.91 |
2.91 |
5.16 |
7.20 |
9.13 |
12.75 |
16.16 |
19.42 |
22.57 |
28.60 |
39.95 |
50.63 |
60.84 |
| 60.0 |
0.63 |
1.07 |
1.47 |
1.84 |
2.19 |
3.36 |
5.97 |
8.37 |
10.63 |
14.89 |
18.92 |
22.78 |
26.51 |
33.67 |
47.18 |
59.93 |
72.15 |
(From:
USDA Agricultural Handbook No. 703).
