Hi,
I have a ditch end condition that has a 1:6 FS with a 4' flat bottom and a 1:6 BS. The ditch is controlled at 4' depth from edge of shoulder. Sometimes the ex ground is steeper than the 1:6 and the ditch end condition wont solve. In the case where my ditch needs to be deeper than 4' what do I need to do to stretch the FS down until it meets the ex slope and then draws the ditch and BS? I don't want to set the bottom FS point to infinite because I need it to stay at 4' as much as I can.
Thanks,