What is an artificially constructed wall that regulates water levels called?

The levees breaking in New Orleans during Katrina caused one of the most devastating disasters. Many died and I had several family members displaced as a result.

... singing This will be the day that I die. Don McLean is one of my favorite singers.

arohanui, brain, is rye not a sort of

arohanui, but the levee was dry. Them good old boys drinking whiskey and rye...Then I get a bit confused, UK. rain

arohanui, it's only called a levee in America

"took my Chevvy to the levee..."

I had no clue lol

I've not been on this type of water😈