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Title: Final Individual Environmental Report, Lake Pontchartrain and Vicinity, Caernarvon Floodwall, St. Bernard Parish, Louisiana, IER #9
Authors: United States. Army. Corps of Engineers. New Orleans District.
Keywords: Pontchartrain, Lake (La.)
Flood control
Environmental management
Publisher: United States. Army. Corps of Engineers. New Orleans District.
Abstract: The U.S. Army Corps of Engineers (USACE), Mississippi Valley Division, New Orleans District, has prepared this Individual Environmental Report (IER) # 9 to evaluate the potential impacts associated with the replacement of two floodgates, approximately 1,500 feet (ft) of floodwall, and a levee tie-in at the southwestern corner [terminus] of the Lake Pontchartrain and Vicinity Hurricane and Storm Damage Risk Reduction System Chalmette Loop Levee in St. Bernard Parish, Louisiana. The Caernarvon Floodwall and floodgates compose reach LPV 149 of the HSDRRS. It is the intent of the CEMVN to employ an integrated, comprehensive, and systems-based approach to hurricane and storm damage risk reduction by raising the HSDRRS to the 100-year level of risk reduction. The proposed action would satisfy the CEMVN’s purpose and need to provide the 100-year level of risk reduction from flood damage due to flooding from hurricanes and other tropical storms in the St. Bernard Parish area. The term “100-year level of risk reduction,” as it is used throughout this document, refers to a level of risk reduction which reduces the risk of hurricane surge and wave-driven flooding that the New Orleans Metropolitan Area has a 1 percent chance of experiencing each year. The elevations of the existing floodwall, gates, and levee tie-ins within the Caernarvon Floodwall complex are below the 100-year design elevation. The proposed action results from a defined need to reduce flood risk and storm damage to residences, businesses, and other infrastructure from hurricanes (100-year storm events) and other high water events. The completed HSDRRS would lower the risk of damage to property and infrastructure during a storm event. The safety of the people in the region is the highest priority of the CEMVN.
Description: Individual Environmental Report
Rights: Approved for Public Release; Distribution is Unlimited
Appears in Collections:Environmental Documents

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