This question already has an answer here:
I have a shapefile of lines and I would like to know an Arcmap tool to create a new shapefile with orthogonal lines from the midpoint of that existing line shapes. I know that it is possible to do it manually, but I have so many lines so it would be an impossible way.
Does anybody know an automate way to do it?
Yes, perpendicular lines that cross the middlepoint of the existing lines. An example would be like this: