https://communities.bentley.com/products/road___site_design/f/geopak-inroads-mx-openroads-forum/137250/or-ss4-creating-a-corridor-boundary---extract-mesh-boundary-creates-circular-dependency---alternative-method-foundOK, I tried something I saw on Envision CAD's Tips. I want to create a Corridor Boundary. The tip said to display the top mesh and use the Extract Mesh Boundary tool. But it complains that this would create a Circular Dependency. The Element Informationen-USTelligent Community 12