I've been address canvassing for the 2020 Census.
In my travels, I have seen an interesting driveway "feature".
It basically resembles a cinder block or cement block in texture.
It is a long "U" shaped channel w/ the "U" being about 2-3" W. The individual blocks are about 16" long. So they are set across the driveway to channel water from one side to another.
Does anyone know what they are called? And where to get them?