I feel stupid for having to ask but...?

Question

what is the long rectangular opening at the side of street sidewalks used for draining excess water called? I'm looking for something other that drainage ditch..

thanks : ]

Answer 1

Sewer Drain, Storm Drain which ever you prefer it's a Drain

Answer 2

storm drain

Answer 3

Grid

Answer 4

It's called nothing else but drain...