Gentilly, New Orleans lying between the London Avenue Canal and Bayou St. John, fall outside of Gentilly, as do the Lakefront subdivisions of Lake Terrace and Lake Oaks, and the Lakefront campus of the University of New Orleans. Apart from the natural high ground along the Gentilly Ridge and the Lakefront section, itself raised above sea level on man-made land created by a project of the Orleans Levee Board in the early 20th century, Gentilly was badly damaged following Hurricane Katrina. The London Avenue Canal floodwalls were breached in two places by Katrina's storm surge, flooding most of the area. Gentilly's population has
Hurricane preparedness for New Orleans Wetlands of Louisiana. The weight of large buildings and infrastructure and the leaching of water, oil and gas from beneath the surface across the region have also contributed to the problem. Following the great floods of 1927, the Mississippi River was surrounded by a series of levees meant to protect the city from such floods. In 1965, New Orleans was hit by Hurricane Betsy, which caused tremendous flooding in the New Orleans area. The federal government began a levee-building program to protect New Orleans from a Category 3 hurricane (the same strength as Betsy). These series of levees were completed