Need help to find a mod

[hakonhellem]

Hello

Im looking for a mod like SFBT Urban Highway Set, where u can use the space under elevated highways. I do use the project symphony version of the MHW. I found this picture when googeling: http://imgur.com/Uojq50M

And i want that concrete "floor" under the elevated highway, as shown in red ring to the right in the picture. Anyone know the name of that mod or something similiar?

[vortext]

Looks like it's just the rock mod which shows and by the looks of it I reckon it's one of Ennedi's (1,2).