Effects of Hurricane Katrina in New Orleans after a brief period of overtopping (Industrial Canal) caused “scouring” or erosion of the earthen levee walls. In eastern New Orleans, levees along the Gulf Intracoastal Waterway failed in several places because they were built with sand and erodible materials instead of clay, an obvious construction flaw. Prior to Hurricane Katrina, New Orleans’ law enforcement was in disarray. It was inundated with corruption from higher up officials and had underpaid officers manning the streets. This enforcement lacked the trust of its citizens and failed to keep police brutality rates low. The city’s lack of organization caused for the New Orleans
Hurricane preparedness for New Orleans from the Mississippi River. In 1947, the Fort Lauderdale hurricane struck the New Orleans area. There was moderate wind damage. Flood prevention was largely successful in Orleans Parish, but there was severe flooding in the new East Jefferson suburbs near the Lake. Hurricane Flossy in 1956 resulted in flooding in parts of Eastern New Orleans. Hurricane Betsy in 1965 alerted a new generation to the threat posed by major hurricanes. As radar showed the storm heading for the city, a mandatory evacuation of Eastern New Orleans was declared. The Mississippi River-Gulf Outlet Canal channeled storm surge into the metro area.