Where to find road materials and meshes for UE4?

Hello there. I am assigned to make map for game and for it I need road meshes and materials for making roads. I searched for it in Internet but could not find a right one. I used automotive materials (Ciber material from Unreal free pack) but it was too shiny. What I mean are free material and meshes. Thanks in advance.

There’s always the megascans stuff: