Before you create a pipe network, it may be useful for you to have existing data, such as ground surfaces and alignments, already in your drawing.
While it can be useful to have these items already set up in your drawing, you can create a pipe network even if these components are not yet created.
| Build the existing ground surfaces | Before you create a pipe network, it may be useful for you to have existing surface data. |
| Create the horizontal alignments | The pipe and structure objects in a pipe network can be associated with a referenced alignment. |