Floodgates are built at the end of storm sewers. During high water, floodgates prevent river water from backing through the sewer into the cities.

What happens when floodgates open?

b) SHOW A FEELING OR ATTITUDEif the floodgates open, or if something opens the floodgates, someone begins to cry and show their emotions after keeping them hidden His display of kindness to her opened the floodgates again, and she began to sob loudly.

What is a floodgate for a house?

A Flood Gates is a removable flood defence product, which can be quickly deployed if there is a flood warning in your local area. The barrier slides into two permanent upright channels, which will be fixed to the wall either side of your door.