Dynamic Commercial Grading with Civil 3D (Everything You Need to Know) 

Commercial grading is one of the hardest design files to keep dynamic. We have all heard of using corridors to do the grading. But how?
In this video I show you step by step how to create a semi dynamic commercial grading file in Civil 3D 2023.2
0:00 Introduction
1:14 Dynamic Grading Concept
2:45 Grading File Setup
4:47 Creating Feature Lines
9:23 Create Corridor
11:55 Modifying Corridor
14:15 Adding to Corridor
18:30 Add Second Feature line to Corridor
19:24 This is how Dynamic Grading works
20:20 Adding Islands to Dynamic Surface
24:13 Outro