Hurricane & Storm Damage Risk Reduction System

The greater New Orleans Hurricane & Storm Damage Risk Reduction System (HSDRRS) is an infrastructure system in southern Louisiana which seeks to provide the greater New Orleans area a 100-year level of risk reduction, meaning reduced risk from a storm surge that has a 1% chance of occurring or being exceeded in any given year. In 2019, the Army Corps of Engineers announced that due to an increased rate of sea level rise and continued sinking of soil the levee system would no longer offer original planned levels of protection as early as the year 2023.

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