Creating a Wall Breakline in Civil 3D

To create a wall breakline, go to: *Toolspace → Prospector → Surface → Definition → Breaklines → Add* The *Add Breaklines* dialog box will open. In the *Description* field, enter a name for your wall, such as `Wall 1`. Then, under *Type**, select **Wall* and click **OK**. Step 2: Select the Wall Line Civil 3D will ask you to select the wall line. Select the polyline that represents the edge of the wall. Next, Civil 3D asks you to specify the offset side. This tells Civil 3D which side of the wall the offset points should be placed on. Step 3: Define the Wall Height You have two main options. *Option 1: Define By Object → All* Use *All* when the height difference is constant along the entire wall. For example, if you enter a delta of `4`, the offset points will have a 4-meter elevation difference from the original points. This is a simple way to model a wall with a constant height difference. *Option 2: Define By Vertex → Individual* Use *Individual* when the wall height varies along its length. For example: Vertex 1: 3 meters Vertex 2: 4 meters Vertex 3: 5 meters This allows you to specify a different value for each vertex. Step 4: Choose Elevation or Delta With **Individual**, you can define the offset points in two ways: *Elevation:* Enter the actual elevation of each offset point. *Delta:* Enter the elevation difference relative to the corresponding original point. Key Takeaway *All* means one consistent elevation difference along the wall. *Individual* means you can specify a separate value for each vertex. Choose *Elevation* for an absolute elevation, or *Delta* for a relative elevation difference.