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https://hdl.handle.net/11681/34998Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | United States. Army. Corps of Engineers. Mississippi Valley Division. | - |
| dc.date.accessioned | 2019-12-23T18:29:42Z | - |
| dc.date.available | 2019-12-23T18:29:42Z | - |
| dc.date.issued | 2018-04 | - |
| dc.identifier.uri | https://hdl.handle.net/11681/34998 | - |
| dc.description | Integrated General Reevaluation Report and Supplemental Environmental Impact Statement | - |
| dc.description.abstract | The U.S. Army Corps of Engineers, in coordination with the non-Federal sponsor, the Louisiana Department of Transportation and Development, propose construction to deepen the existing Mississippi River Ship Channel, Gulf to Baton Rouge, Louisiana, project. Currently, the project provides deep draft navigation along the lower portion of the Mississippi River from River Mile (RM) 233.8 Above Head of Passes (AHP) to the Gulf of Mexico ending at RM 22 Below Head of Passes (BHP). The MRSC allows for deep draft access to the Louisiana ports of Plaquemines, St. Bernard, New Orleans, South Louisiana, and Baton Rouge. The Supplemental Appropriations Act of 1985, Public Law 99-88 authorized the deepening of the existing channel from its depth, at the time, of 40 feet (ft) to 55 ft in accordance with the Report of the Chief of Engineers dated April 9, 1983, SUBJECT: “Mississippi River Ship Channel, Gulf to Baton Rouge, Louisiana.” Construction of the channel was initially planned in three phases. Among other things, the first phase deepened the channel to 45 ft from the Gulf of Mexico beginning at RM 22 BHP to Donaldsonville, LA, and the second phase deepened the channel to 45 ft from Donaldsonville, LA to RM 232.4 AHP. The reach from RM 232.4 to 233.8 AHP was not deepened. The third phase planned to deepen the length of the entire project to 55 ft. At the time of this report, the third phase has not been constructed and it is proposed in this report that full implementation of the project to a depth of 55 ft be addressed in phases beyond the third phase of construction for the project. | en_US |
| dc.description.tableofcontents | Abstract ..................................................................................................................................................... i Executive Summary .............................................................................................................................. iii Table of Contents ................................................................................................................................. xiv List of Acronyms, Abbreviations and Symbols ............................................................................... xxi 1.0 Introduction ............................................................................................................................... 1-1 1.1 Project Description .................................................................................................................... 1-1 1.2 Project Authority ....................................................................................................................... 1-6 1.3 Pertinent Previous Studies and reports ..................................................................................... 1-9 1.4 Project Implementation ........................................................................................................... 1-13 1.5 Purpose for Action .................................................................................................................. 1-13 1.6 Purpose and Scope .................................................................................................................. 1-14 1.7 Problems, Need, and Opportunities ........................................................................................ 1-16 1.8 USACE Civil Works Guidance and Initiatives ..................................................................... 1-21 1.9 Additional Project Considerations - Project Datum .............................................................. 1-22 1.10 Non-Federal Sponsor .............................................................................................................. 1-24 2.0 Affected Environment ............................................................................................................... 2-1 2.1 Introduction ............................................................................................................................... 2-1 2.2 Water Environment ................................................................................................................... 2-6 2.3 Human Environment ............................................................................................................... 2-37 2.4 Natural Environment ............................................................................................................... 2-48 3.0 Plan Formulation ....................................................................................................................... 3-1 3.1 Prior Studies .............................................................................................................................. 3-1 3.2 Planning Objectives .................................................................................................................. 3-3 3.3 Planning Constraints ................................................................................................................. 3-4 3.4 Management Measures ............................................................................................................. 3-5 3.5 Existing Project Description ..................................................................................................... 3-9 3.6 Future Conditions .................................................................................................................... 3-19 3.7 Initial Array of Alternatives .................................................................................................... 3-23 3.8 Final Array of Alternatives ..................................................................................................... 3-25 3.9 Screening of Alternatives ........................................................................................................ 3-27 3.10 The Tentatively Selected Plan ................................................................................................ 3-28 3.11 Summary of Accounts and Comparison of Alternatives ...................................................... 3-35 3.12 Release of the Draft Report .................................................................................................... 3-36 3.13 Feasibility Level Design ......................................................................................................... 3-41 3.14 Recommended Plan ................................................................................................................ 3-48 4.0 Environmental Consequences for Comparative Analysis ................................................... 4-1 4.1 Description of Alternatives ....................................................................................................... 4-2 4.2 Water Environment ................................................................................................................... 4-8 4.3 Human Environment ............................................................................................................... 4-19 4.4 Natural Environment ............................................................................................................... 4-34 4.5 Cumulative Impacts ................................................................................................................ 4-51 4.6 Mitigation Requirements Associated With the Recommended Plan ................................... 4-70 5.0 The Recommended Plan ........................................................................................................... 5-1 5.2 Relocations with the Recommended Plan ............................................................................... 5-3 5.3 OMRR&R Associated with the Recommended Plan ............................................................. 5-3 5.4 General Navigation Features (GNF) and Local Service Facilities ......................................... 5-5 5.5 Risk and Uncertainty ................................................................................................................. 5-6 5.6 Mitigation Plan & Adaptive Management & Monitoring (AM&M) ..................................... 5-9 5.7 Implementation Requirements ............................................................................................... 5-12 5.8 Cost Apportionment ................................................................................................................ 5-13 5.9 USACE Environmental Operating Principles ....................................................................... 5-15 5.10 USACE Campaign Plan ......................................................................................................... 5-16 6. Environmental Laws & Compliance ............................................................................................... 1 6.1 Bald and Golden Eagle Protection Act of 1940 .................................................. 1 6.2 Clean Air Act of 1972, Amended 1990 ................................................................ 1 6.3 Clean Water Act of 1972 – Section 401.......................................................... 2 6.4 Clean Water Act of 1972 – Section 404 ........................................................ 2 6.5 Coastal Zone Management Act of 1972.................................... 3 6.6 Endangered Species Act of 1973................................... 3 6.7 Fish and Wildlife Coordination Act of 1934................................................ 4 6.8 Magnuson-Stevens Fishery Conservation and Management Act ...... 4 6.9 Marine Mammal Protection Act of 1972 .................................................. 4 6.10 Migratory Bird Treaty Act of 1918 & Migratory Bird Conservation Act of 1929..5 6.11 National Historic Preservation Act of 1966....................... 5 6.12 Resource Conservation and Recovery Act of 1976, as amended by the Hazardous and Solid Waste Amendments of 1984 ....................................................................................................... 6 6.13 Executive Order 11514, Protection and Enhancement of Environmental Quality ................... 6 6.14 Executive Order 11988, Floodplain Management ..................................................................... 7 6.15 Executive Order 11990, Protection of Wetlands ........................................................................ 7 6.16 Executive Order 12898, Federal Actions to Address Environmental Justice in Minority Populations and Low-Income Populations ................................................................................. 7 6.17 Executive Order 13112, Invasive Species .................................................................................. 7 6.18 Executive Order 13186, Responsibilities of Federal Agencies to Protect Migratory Birds ..... 8 6.19 Land and Water Conservation Fund Act of 1965 ....................................................................... 8 6.20 Marine Protection, Research and Sanctuaries Act of 1972 ........................................................ 8 6.21 Coastal Barrier Resources Act of 1982 ....................................................................................... 9 6.22 National Environmental Policy Act .......................................................................................... 10 7.0 Public involvement .................................................................................................................... 7-1 7.1 Public Scoping Meetings .......................................................................................................... 7-1 7.2 NEPA Cooperating Agencies ................................................................................................... 7-2 7.3 Review of the Draft Report ....................................................................................................... 7-2 7.4 Comments Received on the Draft Integrated GRR and SEIS. ............................................... 7-5 8.0 Recommendation ....................................................................................................................... 8-1 8.1 Recommended Plan .................................................................................................................. 8-1 8.2 Plan Implementation ................................................................................................................. 8-2 9.0 List of Preparers ........................................................................................................................ 9-1 MAP ANNEX Mississippi River Ship Channel – EGIS Map ID 17-005-001 APPENDICIES Appendix A: Environmental Appendix B: Real Estate Plan Appendix C: Engineering Appendix D: Economics Appendix E: Scoping Report Appendix F: Value Engineering Appendix G: EDR-OD-01 Appendix H: Hydraulic Reports Appendix I: Project Cost Appendix J: Public Comments and Responses to the Draft Integrated General Reevaluation Report and Supplemental Environmental Impact Statement Appendix K: Preliminary Assessment of the Dredge Material Management Plan Appendix L: References | - |
| dc.format.extent | 281 pages / 13.29 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 | Mississippi River | en_US |
| dc.subject | Louisiana | en_US |
| dc.subject | Channels (Hydraulic engineering) | en_US |
| dc.subject | Inland navigation | en_US |
| dc.subject | Environmental management | en_US |
| dc.title | Mississippi River Ship Channel, Gulf to Baton Rouge, LA: Integrated General Reevalution Report & Supplement III to the Final Environmental Impact Statement, Mississippi River Ship Channel, Baton Rouge to the Gulf, Louisiana Project | en_US |
| dc.type | Report | en_US |
| Appears in Collections: | Environmental Documents | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| aMRSC_Main Report.pdf | 13.62 MB | Adobe PDF |  View/Open |