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So i created a Surface for a dredge prism. I have to grade 3 sides of it. 2 of the sides are graded 3:1 slope up to meet the existing surface which is set. The 3rd side is the back, it comes up at a 2:1 for a certain distance then comes up at a vertical face which would be the existing Seawall. Ive tried grading to distance and it just wont create a surface. Any help would be appreciated.
You can't make a surface with vertical faces. Offset a very small amount like a hundredth.