Symbolize Overpass by Attribute

[Syvertson]

I am working in pro and trying to design a symbology for my own basemaps.  My road layer has a field called "ZORDER" for the purpose of modeling roads.  If roads meet and one road is supposed to pass under the other, it will be given a lower value in the ZORDER field.  I assume the answer is in symbol layers, but it only gives options in relation to the drawn symbology, not another field.  In the example shown below, The orange lines should pass below the yellow lines, but at another intersection it may be reversed.  As you can see in the drawing, some went over and some under, seemingly randomly.  Any ideas how I can do this?