Laserfiche WebLink
Ditch Factor <br />• QZ <br />Shape <br />"Alternate A" <br />n (without riprap) <br />do <br />Sc <br />Vc <br />"Alternative B" <br />n (with riprap) <br />North Ditch <br />2.6 cfs <br />2:1 <br />V-ditch <br />0.025 <br />0.64 ft. <br />1.5% <br />3.20 fps <br />0.04 <br />Based on the above results, the East Ditch will be constructed with the <br />following minimum dimensions. <br />"Alternate A" (without riprap): <br />Minimum depth = 2 ft. <br />Side Slopes = 2:1 <br />• Slope = 0% to 1.5% <br />Maximum Velocity = 3.20 fps <br />Q = 2.6 cfs <br />Manning's N = 0.025 <br />Shape = V-ditch <br />"Alternate B" (with riprap): <br />Minimum depth = 2 ft. <br />Side Slopes = 2:1 <br />Ditch Slope = 1.5% to 50% <br />Maximum Velocity = 8.23 fps <br />Q = 2.6 cfs <br />Manning's N = 0.04 <br />Shape = V-ditch <br /> <br />12 <br />