Throughout the 1700s and 1800s, what did people in southern Louisiana do to protect their communities and land against floods?

During the 1700s and 1800s, people in southern Louisiana went through a number of floods. To protect themselves, they first built on natural levees. Later they worked to make these levees taller and larger. They continued to extend a system of levees in an attempt to protect their communities and their land, some of which was used for farming.