This is a bit of an oldie, but goodie. Civil 3D Pipe Label Styles can give me the Invert In or the Invert Out of a pipe, but not the invert between point a and point b. That limitation is never really an issue until you go to label the invert of a crossing pipe. If you’re like me the first time I encountered this issue, I first searched and searched the Plan Profile Pipe Label Style options. My disbelief grew with each minute, until I happened to look at my Google Talk and found one of my Civil 3D buddies online. It wasn’t until then I really believed Civil 3D couldn’t label a crossing invert…well that was until I expanded another node in the settings tab. That node? Station Elevation labels for Profile Views.
The Style
For my crossing pipe invert label, I created a new style under: Profile View > Label Styles > Station Elevation. Opening the style will reveal a simple, yet effective style. All I have done is added a text element that says INV=, and then includes the ‘Profile View Point Elevation” property. By employing this method I’m labeling the profile, not the pipe. It just so happens whenever I use this style, a pipe will be nearby. From a presentation standpoint, the label being a profile style verses a pipe style is indifferent. However from a data linking & management perspective, the separation is huge. Since I am using a profile style to label a pipe, if the pipe updates, the label will not. I’ll have to manually move the label to update the elevation to a new invert.
Labeling Inverts
Rather than going to pipe labels, I’ll go to Profiles > Add Profile View Labels > Add Profile View Labels…
Next, I’ll select my Pipe Invert Label Style from the Add Labels dialog, and click [Add]
After clicking [Add], Civil 3D will prompt you to select your profile view, then pick a station & elevation. To pick the station and elevation, use your Endpoint snap to select the same point twice.
Once you have selected the profile station & elevation to label, Civil 3D will display your profile label that so badly wants to grow up and become a pipe label style.
, as a highly-rated speaker at 
