That is very cool that in almost every picture you sit and point out the drain. But the clogging is not cool at all. that is the major issue not only there but here as well. this is the reason why a little extra rain turns the roads into swimming pools. Maintenance should be utmost priority.
That is so nice of you to pin point such a problem as I said earlier, you have keen eyes for such things , being observant helps a lot in life.
Have a great day!