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https://hdl.handle.net/11681/35494Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | United States. Army. Corps of Engineers. New Orleans District | - |
| dc.date.accessioned | 2020-02-10T16:28:49Z | - |
| dc.date.available | 2020-02-10T16:28:49Z | - |
| dc.date.issued | 2009-03 | - |
| dc.identifier.uri | https://hdl.handle.net/11681/35494 | - |
| dc.description | Individual Environmental Report | - |
| dc.description.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. | en_US |
| dc.description.tableofcontents | 1.0 INTRODUCTION..............................................................................................................2 1.1 PURPOSE AND NEED FOR THE PROPOSED ACTION ..............................3 1.2 AUTHORITY FOR THE PROPOSED ACTION ..............................................4 1.3 PRIOR REPORTS.................................................................................................5 1.4 INTEGRATION WITH OTHER INDIVIDUAL ENVIRONMENTAL REPORTS...............................................................................................................7 1.5 PUBLIC CONCERNS..........................................................................................8 1.6 DATA GAPS AND UNCERTAINTY ..................................................................9 2.0 ALTERNATIVES............................................................................................................11 2.1 ALTERNATIVES DEVELOPMENT AND PRELIMINARY SCREENING CRITERIA...................................................................................11 2.2 DESCRIPTION OF THE ALTERNATIVES ...................................................11 2.3 PROPOSED ACTION.........................................................................................15 2.4 ALTERNATIVES TO THE PROPOSED ACTION........................................23 2.5 ALTERNATIVES ELIMINATED FROM FURTHER CONSIDERATION .............................................................................................27 2.6 SUMMARY TABLE............................................................................................31 3.0 AFFECTED ENVIRONMENT AND ENVIRONMENTAL CONSEQUENCES.....32 3.1 ENVIRONMENTAL SETTING ........................................................................32 3.2 SIGNIFICANT RESOURCES ...........................................................................35 3.2.1 Lake Pontchartrain/Cnaals/Bayou St. John............................................... 36 3.2.2 Fisheries .................................................................................................... 44 3.2.3 Essential Fish Habitat ............................................................................... 51 3.2.4 Wildlife ..................................................................................................... 58 3.2.5 Threatened and Endangered Species ........................................................ 62 3.2.6 Non-Wet Upland.s.................................................................................... 71 3.2.7 Cultural Resources.................................................................................... 72 3.2.8 Recreation ................................................................................................. 80 3.2.9 Aesthetic (Visual) Resources.................................................................... 90 3.2.10 Air Quality ................................................................................................ 95 3.2.11 Noise ......................................................................................................... 97 3.2.12 Transportation ........................................................................................... 99 3.3 SOCIOECONOMIC RESOURCES ................................................................102 3.4 ENVIRONMENTAL JUSTICE .......................................................................110 3.5 HAZARDOUS, TOXIC, AND RADIOACTIVE WASTE.............................115 4.0 CUMULATIVE IMPACTS ..........................................................................................116 4.1 METHODOLOGY ............................................................................................116 4.2 DESCRIPTIONS OF PROJECTS CONSIDERED .......................................117 4.2.1 CEMVN HSDRRS IERs................................................................................ 117 4.2.2 Habitat Restoration, Creation, and Stabilization Projects....................... 123 4.2.2.1 Coastal Wetlands Planning, Protection, and Restoration Act (CWPPRA) Program Projects......................................................123 4.2.2.2 Mississippi River Gulf Outlet Deep-Draft De-authorization.......123 4.2.2.3 Coastal Impact Assistance Program.............................................123 4.2.2.4 State Coastal Planning and Restoration .......................................124 4.2.2.5 Miscellaneous Wetland Restoration Projects...............................125 4.2.3 Other Local Projects ....................................................................................... 125 4.3 SUMMARY OF CUMULATIVE IMPACTS .................................................125 5.0 SELECTION RATIONALE.........................................................................................126 6.0 COORDINATION AND CONSULTATION..............................................................127 6.1 PUBLIC INVOLVEMENT...............................................................................127 6.2 AGENCY COORDINATION...........................................................................128 7.0 MITIGATION................................................................................................................133 8.0 COMPLIANCE WITH ENVIRONMENTAL LAWS AND REGULATIONS.......133 9.0 CONCLUSIONS ............................................................................................................134 9.1 INTERIM DECISION.......................................................................................134 9.2 PREPARED BY .................................................................................................136 9.3 LITERATURE CITED .....................................................................................137 Appendix A: List of Acronyms and Definitions of Common Terms Appendix B: Public Comments Appendix C: Members of Interagency Environmental Team Appendix D: Interagency Correspondence Appendix E: Public Meeting Minutes | - |
| dc.format.extent | 280 pages / 5.812 Mb | - |
| dc.format.medium | PDF/A | - |
| dc.language.iso | en_US | en_US |
| dc.publisher | United States. Army. Corps of Engineers. New Orleans District. | en_US |
| dc.rights | Approved for Public Release; Distribution is Unlimited | - |
| dc.source | This Digital Resource was created in Microsoft Word and Adobe Acrobat | - |
| dc.subject | Inner Harbor Navigation Canal (La.) | en_US |
| dc.subject | Pontchartrain, Lake (La.) | en_US |
| dc.subject | Flood control | en_US |
| dc.subject | Hurricanes | en_US |
| dc.subject | Environmental management | en_US |
| dc.title | Final Individual Environmental Report, LPV, New Orleans Lakefront Levee, West of Inner Harbor Navigation Canal, Orleans Parish, Louisiana, IER #4 | en_US |
| dc.type | Report | en_US |
| Appears in Collections: | Environmental Documents | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IER 4 Final Document.pdf | 5.95 MB | Adobe PDF |  View/Open |