1. ERDC Knowledge Core
2. United States Army Corps of Engineers (USACE)
3. Mississippi Valley Division
4. New Orleans District
5. Environmental Documents

Title:	Final Individual Environmental Report, LPV, New Orleans Lakefront Levee, West of Inner Harbor Navigation Canal, Orleans Parish, Louisiana, IER #4
Authors:	United States. Army. Corps of Engineers. New Orleans District.
Keywords:	Inner Harbor Navigation Canal (La.) Pontchartrain, Lake (La.) Flood control Hurricanes Environmental management
Publisher:	United States. Army. Corps of Engineers. New Orleans District.
Abstract:	The U.S. Army Corps of Engineers, Mississippi Valley Division, New Orleans District, has prepared this Individual Environmental Report # 4 (IER # 4) to evaluate the potential impacts associated with a proposed action that would include changes involving multiple gates and ramps as well as a sector gate structure along the south shore of Lake Pontchartrain in Orleans Parish, Louisiana. For the purposes of this IER, the Lake Pontchartrain and Vicinity area has been divided into numerous reaches. Every reach is identified by a project identification number. Specifically, IER # 4 encompasses four reaches of the LPV Hurricane and Storm Damage Risk Reduction System: LPV 101, 102, 103, and 104. The HSDRRS within the IER # 4 project area totals approximately 5.8 miles in length (figures 1 and 2). This IER evaluates alternatives to modify, replace, build, or rebuild 13 vehicle access gates, one pedestrian gate, one sector gate structure on Bayou St. John, several floodwall sections, and several roadway ramps that occur within LPV reaches 101, 102, 103, and 104. The purpose and need for the proposed action is to provide, in a timely manner, the 100-year level of risk reduction from flood damage to Orleans Parish due to flooding from hurricanes and other severe storm events. 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 storm surge and wave-driven flooding that the New Orleans Metropolitan Area has a one percent chance of experiencing in any given year. The elevations of some existing levees, floodwalls, structures, and gates within the LPV project reaches included in IER # 4 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 harm to citizens and damage to infrastructure during a storm event. The safety of people in the region is the highest priority of the CEMVN.
Description:	Individual Environmental Report
Rights:	Approved for Public Release; Distribution is Unlimited
URI:	https://hdl.handle.net/11681/35494
Size:	280 pages / 5.812 Mb
Types of Materials:	PDF/A
Appears in Collections:	Environmental Documents