I've read two discussions that seem to address my question - but I still cannot figure out how to do what I want to do. I'm placing a swale parallel to a curb line for a parking area. I've graded the bottom of the swale up at a 3:1 slope around the entire bottom. I now want to tie in the feature line on one side of the swale to the back of the curb line - keeping the existing elevations along the curb line. I want to grade the rest of the perimeter of the swale to the exiting ground surface at a 5:1 slope. See figure below:
I've tried tracing the back of the curb with a polyline - then making the polyline a feature line (getting elevations from existing surface) and then adding the feature line to my swale surface as a non-destructive breakline. But then I'm stumped - how do I get a grading from my swale feature line to the new curb feature line? I've tried doing a 5:1 grade to surface along the entire swale feature line - but the grading doesn't stop at the new breakline.I can't do an infill between the swale and the curb since that area is not closed. I can grade most of the swale perimeter to the existing surface at a 5:1, but where do I start and stop - and how do I tie that portion of the swale surface into the part that will be between the swale and the curb? Thanks for any help.
(Dam phone)
