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
1915 New Orleans hurricane seas produced by the hurricane along the Louisiana coast arrived shortly before the storm made landfall. Evacuees departing the coast as late as September 28 reported no abnormal tides along the shore. However, sea levels began to rise at abnormally rapid rates on the morning of September 29 as the hurricane neared. By the afternoon hours, low-lying lands south of New Orleans and east towards Bay St. Louis, Mississippi, as well as areas adjacent to Lake Pontchartrain, were inundated by the quickly rising storm surge. Levee overtopping along Lake Pontchartrain resulted in the flooding of much of western New Orleans.