David Summers David Hoffman J. David Rogers Adam Sevi Emitt C. Witt III Ronaldo Luna 2007 This article presents the post-Hurricane Katrina conditions of the flood-protection system of levees and floodwalls that failed in the environs of the Mississippi River Delta and New Orleans, La. Damage conditions and suggested mechanisms of failure are presented from the geotechnical point of view. application/pdf 10.3133/cir13063C en U.S. Geological Survey Geotechnical reconnaissance of the Mississippi River Delta flood-protection system after Hurricane Katrina reports