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https://hdl.handle.net/11681/36053
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DC Field | Value | Language |
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dc.contributor.author | United States. Army. Corps of Engineers. New Orleans District | - |
dc.date.accessioned | 2020-04-07T16:11:00Z | - |
dc.date.available | 2020-04-07T16:11:00Z | - |
dc.date.issued | 2010-11 | - |
dc.identifier.uri | https://hdl.handle.net/11681/36053 | - |
dc.description | Individual Environmental Report Supplemental | - |
dc.description.abstract | The United States Army Corps of Engineers-Mississippi Valley Division, New Orleans District has prepared this Individual Environmental Report Supplemental (IERS) #11.b – Tier 2 Borgne – Improved Protection on the Inner Harbor Navigation Canal (IHNC), Orleans and St. Bernard Parishes, Louisiana, referred to as IERS #11.b – Tier 2 Borgne – IHNC in the remainder of this report. This IERS has been prepared to evaluate the potential impacts associated with restoring and reinforcing approximately 4.6 miles (mi) of noncontiguous IHNC and Gulf Intracoastal Waterway (GIWW) levees and floodwalls in Orleans Parish, Louisiana. This document is the second supplement to Individual Environmental Report #11 (IER #11) – Tier 2 Borgne - Improved Protection on the Inner Harbor Navigation Canal, Orleans and St. Bernard Parishes, Louisiana, and evaluates strengthening secondary flood risk reduction structures against water that could potentially enter the GIWW and IHNC from overtopping of the primary risk reduction system, and internal rainfall. Evaluation of deficient segments of the IHNC Hurricane Storm Damage Risk Reduction System were divided into three reaches (Reach 1, 2, and 3) based on the sub-basins that are protected by the existing flood risk reduction system. | en_US |
dc.description.sponsorship | United States. Army. Corps of Engineers. | 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 .................................................................................................2 1.4 PUBLIC CONCERNS ...........................................................................................4 2.0 PROPOSED ACTION AND ALTERNATIVES .............................................................5 2.1 DESCRIPTION OF THE PROPOSED ACTION ..............................................5 2.1.1 Description of Restoration/Reinforcement Methods ...................................8 2.1.2 Proposed Restoration/Reinforcement Methods by Reach .........................11 2.1.3 Construction-Related Information for the Proposed Action ......................14 2.2 ALTERNATIVES TO THE PROPOSED ACTION ........................................18 2.2.1 No Action Alternative ................................................................................18 2.3 ALTERNATIVES ELIMINATED FROM FURTHER CONSIDERATION .............................................................................................18 2.3.1 Non-Structural Alternatives .......................................................................18 3.0 AFFECTED ENVIRONMENT AND ENVIRONMENTAL CONSEQUENCES .....20 3.1 ENVIRONMENTAL SETTING ........................................................................20 3.2 SIGNIFICANT RESOURCES ...........................................................................25 3.2.1 Water and Coastal Resources .....................................................................25 3.2.2 Upland Resources ......................................................................................28 3.2.3 Wildlife ......................................................................................................32 3.2.4 Threatened and Endangered Species .........................................................36 3.2.5 Cultural Resources .....................................................................................39 3.2.6 Recreational Resources ..............................................................................43 3.2.7 Aesthetics ...................................................................................................52 3.2.8 Noise ..........................................................................................................60 3.2.9 Air Quality .................................................................................................64 3.2.10 Transportation ............................................................................................69 3.2.10.1 Navigational Resources .............................................................69 3.2.10.2 Airports .....................................................................................69 3.2.10.3 Railroads ...................................................................................69 3.2.10.4 Surface Roads ...........................................................................70 3.3 SOCIOECONOMICS..........................................................................................73 3.3.1 Displacement of Population and Housing ..................................................84 3.3.2 Impacts to Employment, Business, and Industry .......................................85 3.3.3 Availability of Public Facilities and Services ............................................86 3.3.4 Effects on Transportation ...........................................................................87 3.3.5 Disruption of Community and Regional Growth .......................................88 3.3.6 Impacts to Tax Revenues and Property Values .........................................89 3.3.7 Changes in Community Cohesion .............................................................90 3.4 ENVIRONMENTAL JUSTICE .........................................................................91 3.5 HAZARDOUS, TOXIC, AND RADIOACTIVE WASTE ...............................93 4.0 CUMULATIVE IMPACTS ............................................................................................95 4.1 METHODOLOGY ..............................................................................................95 4.2 DESCRIPTION OF PROJECTS CONSIDERED ............................................96 4.3 CEMVN HSDRRS IERs......................................................................................99 5.0 SELECTION RATIONALE .........................................................................................107 6.0 COORDINATION AND CONSULTATION ..............................................................107 7.0 MITIGATION ................................................................................................................108 8.0 COMPLIANCE WITH ENVIRONMENTAL LAWS AND REGULATIONS .......108 9.0 CONCLUSION ..............................................................................................................109 10.0 PREPARED BY .............................................................................................................110 11.0 LITERATURE CITED .................................................................................................111 | - |
dc.format.extent | 276 pages / 27.64 MB | - |
dc.format.medium | - | |
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 | Inner Harbor Navigation Canal (La.) | en_US |
dc.title | Final Individual Environmental Report Supplemental, Improved Protection on the Inner Harbor Navigation Canal, Orleans and St. Bernard Parishes, IERS #11.b - Tier 2 Borgne - INHC | en_US |
dc.type | Report | en_US |
Appears in Collections: | Environmental Documents |
Files in This Item:
File | Description | Size | Format | |
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IERS 11.b Tier 2 Borgne Final Document.pdf | 27.64 MB | Adobe PDF | View/Open |