What time frame are you speaking of? 1810??? 1900???<quoted text>
The citizens did most of the early levee building. Try and grasp this point.
Try to answer the question.
The levees that failed around NO were designed and built by the Army Corps of Enginners. These levees were 60-90% complete when Katrina struck. The Army has admitted that their design was at fault, causing the failure. Try to grasp this truth.