What is the proper term for this type of drainage?
Attached are 2 pictures of my backyard and semi-greenbelt and I am trying to figure out what the correct term is for this cement drainage thing?
It is right outside of my property line and it runs along the other property owners lines as well.
The area is slightly hilly and it's basically a greenbelt.
My assumption is, it's for drainage?
I cannot think of the name and it's killing me.....