Web Reference: In this exercise, you will create a grading criteria set for a ditch grading, then create three criteria in the set. Each grading criteria provides a standard formula for creating a graded slope. Drainage flow lines OR ditch chevrons (contours) should be used to draft ditches. Never should both be combined to draft the same ditch. Only ditches that have a design grade (COGO profile) by Hydraulic Engineers are to be drafted by Roadway Design in the DRN file. Feb 23, 2025 · Learn how to build and manage gradings for ditches, slopes, and other s...more. Audio tracks for some languages were automatically generated. Learn more.
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