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https://hdl.handle.net/11681/35535Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | United States. Army. Corps of Engineers. New Orleans District. | - |
| dc.date.accessioned | 2020-02-12T18:26:26Z | - |
| dc.date.available | 2020-02-12T18:26:26Z | - |
| dc.date.issued | 2010-02 | - |
| dc.identifier.uri | https://hdl.handle.net/11681/35535 | - |
| dc.description | Individual Environmental Report | - |
| dc.description.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. | en_US |
| dc.description.tableofcontents | 1.0 INTRODUCTION............................................................................................................. 1 1.1 PURPOSE AND NEED FOR THE PROPOSED ACTION ..............................2 1.2 AUTHORITY FOR THE PROPOSED ACTION ..............................................2 1.3 PRIOR REPORTS.................................................................................................3 1.4 INTEGRATION WITH OTHER INDIVIDUAL ENVIRONMENTAL REPORTS...............................................................................................................8 1.5 PUBLIC CONCERNS...........................................................................................8 1.6 DATA GAPS AND UNCERTAINTY..................................................................9 2.0 ALTERNATIVES........................................................................................................... 10 2.1 ALTERNATIVES DEVELOPMENT AND PRELIMINARY SCREENING CRITERIA...................................................................................10 2.2 DESCRIPTION OF THE ALTERNATIVES ...................................................10 2.3 PROPOSED ACTION.........................................................................................11 2.4 ALTERNATIVES TO THE PROPOSED ACTION........................................17 2.5 ALTERNATIVES ELIMINATED FROM FURTHER...................................24 CONSIDERATION .............................................................................................24 2.6 SUMMARY TABLE............................................................................................27 3.0 AFFECTED ENVIRONMENT AND ENVIRONMENTAL CONSEQUENCES....... 28 3.1 ENVIRONMENTAL SETTING ........................................................................28 3.2 SIGNIFICANT RESOURCES ...........................................................................32 3.2.1 Wetlands and Canals .................................................................33 3.2.2 Fisheries ......................................................................................40 3.2.3 Essential Fish Habitat................................................................44 3.2.5 Threatened and Endangered Species .......................................54 3.2.6 Non-wet Uplands........................................................................59 3.2.7 Cultural Resources.....................................................................61 3.2.8 Recreational Resources .............................................................63 3.2.10 Air Quality..................................................................................69 3.2.11 Noise ............................................................................................71 3.2.12 Transportation ...........................................................................74 3.3 SOCIOECONOMIC RESOURCES ..................................................................79 3.4 ENVIRONMENTAL JUSTICE .........................................................................88 3.5 HAZARDOUS, TOXIC, AND RADIOACTIVE WASTE...............................94 4.0 CUMULATIVE IMPACTS ........................................................................................... 95 4.1 METHODOLOGY ..............................................................................................96 4.2 DESCRIPTIONS OF PROJECTS CONSIDERED .........................................96 4.2.1 CEMVN HSDRRS IERs ...........................................................................97 4.2.2 Habitat Restoration, Creation, and Stabilization Projects........................105 4.2.2.1 Coastal Wetlands Planning, Protection and Restoration Act Program Projects....................................................105 4.2.2.2 Mississippi River Gulf Outlet Deep-Draft Deauthorization ......105 4.2.2.3 Coastal Impact Assistance Program..............................108 4.2.2.4 State Coastal Planning and Restoration .....................................108 4.2.3 Other Projects...........................................................................................110 4.3 SUMMARY OF CUMULATIVE IMPACTS .................................................110 5.0 SELECTION RATIONALE........................................................................................ 112 6.0 COORDINATION AND CONSULTATION............................................................. 113 6.1 PUBLIC INVOLVEMENT...............................................................................113 6.2 AGENCY COORDINATION...........................................................................114 7.0 MITIGATION............................................................................................................... 120 8.0 COMPLIANCE WITH ENVIRONMENTAL LAWS AND REGULATIONS...... 120 9.0 CONCLUSIONS ........................................................................................................... 121 9.1 FINAL DECISION ............................................................................................121 9.2 PREPARED BY .................................................................................................122 9.3 LITERATURE CITED .....................................................................................123 Appendix A: List of Acronyms and Definitions of Common Terms Appendix B: Public Comments Appendix C: Members of Interagency Environmental Team Appendix D: Agency and Tribal Government Coordination Documentation Appendix E: Air Quality Analysis | - |
| dc.format.extent | 203 pages / 11.12 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 | Pontchartrain, Lake (La.) | en_US |
| dc.subject | Flood control | en_US |
| dc.subject | Hurricanes | en_US |
| dc.subject | Environmental management | en_US |
| dc.subject | Wetlands | en_US |
| dc.title | Final Individual Environmental Report, Lake Pontchartrain and Vicinity, Caernarvon Floodwall, St. Bernard Parish, Louisiana, IER #9 | en_US |
| dc.type | Report | en_US |
| Appears in Collections: | Environmental Documents | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IER 9 Final Document.pdf | 11.39 MB | Adobe PDF |  View/Open |