I am trying to figure out a way to create markers as seen from the attached image where an angled line (in dark red) is created between the lines to represent a connecting stream. With the data I am using, each break is actually an assessment unit and all assessment units form a segment (stream). Does anyone know how these are created? I would assume an "end of line" symbol" but not sure where to look for that.
I am using ArcMap 10.6 and have access to most all tools.