Not long ago, we had nearly 5" of rainfall in just a few hours. I posted pictures of the flooded area which is actually designed to collect water so more severe flooding doesn't occur below.
This is obviously the flooded area #1 BEFORE
This is obviously the flooded area #2 BEFORE
To appreciate the size of this place, that's a pickup truck in the distance, in the right corner of the concrete strip, and the collection area extends much farther off to the left of the screen in all these pictures.