Effects of Hurricane Katrina in New Orleans Blanco ordered the complete evacuation of the remaining people that sought shelter in the Superdome. They were then transported to the Astrodome in Houston, Texas. As of mid-day Monday, August 29, the eye of Hurricane Katrina passed east of the City subjecting it to hurricane wind conditions, but sparing New Orleans the worst impact. The City seemed to have escaped most of the catastrophic wind damage and heavy rain that had been predicted. Most buildings came through well structurally. However, the city's levee and flood walls designed and built by the US Army Corps of Engineers breached in over fifty
Hurricane preparedness for New Orleans Hurricane Ivan's threat to the city resulted in the largest evacuation of the city to date. Mayor Ray Nagin issued a call for a voluntary evacuation of the city at 6 pm on September 13. An estimated 600,000 or more evacuated from Greater New Orleans. The contraflow plan was put into full effect for the first time, but rather late in the evacuation due to various confusions. This proved valuable practice, for the contraflow was implemented much more smoothly in 2005. Hurricane Pam was a hypothetical hurricane used as a disaster scenario to drive planning for a 13-parish area in