paulb77 wrote:So the minimum is 2% and max is 20%. I took 1/.2 = 5' max. Sketched a 2'-6" radius circle (5' diameter) to verify the contour spacing to be no more than the circles. The 2% equals 50' so that's not an issue. Your calculations are correct. How did you actually apply the calculation for minimum slope? Does that sound right?
paulb77 wrote:honestly i just watched you tube videos and the "sample passing" solution for the grading on ncarb. everything i saw just stresses the contour spacing and forming swales correctly to direct water, am i being led in the wrong direction?
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