Road Overlaying ground texture

I have a weird issue with a road I created with a custom texture. The only texture its using at the minute is the diffuse but it overlays the ground texture no matter what. Turning off "Transparency Z-white" fixes it but removes the shadow from the road.


(imported from here)

I probably missed something well known, but any help would be appreciated

 

This happens with all decal roads use a concrete texture underneath and the issue goes away.

 

Aha ok, I knew it was going to be something simple, being a map making noob I've never noticed that happen before, but then again I was using dirt roads



Thanks for the help

 

Help please. I can´t create roads