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EIS Document(s):

2025 Draft GRR SEIS Mississippi River, Baton Rouge to the Gulf of Mexico Mississippi River-Gulf Outlet, Louisiana New Industrial Canal Lock and Connecting Channels Project.pdf (243 pp, 12058.734375 K)

Annex 1 - Clean Water Act 404 documentation.pdf (1 pp, 160.6474609375 K)

Annex 2 - USFWS Coordination Act Report.pdf (63 pp, 4893.8193359375 K)

Annex 3 - Scoping Meeting - Report, Comments, Transcript.pdf (160 pp, 8484.783203125 K)

Annex 4 - NHPA Section 106 May 2025.pdf (641 pp, 27793.4228515625 K)

Annex 5 - Endangered Species Act Consultation.pdf (26 pp, 3895.9716796875 K)

Annex 6 - Louisiana Coastal Resources Program - Federal Consistency Determination.pdf (2 pp, 205.568359375 K)

Annex 7 - Clean Water Act, Section 401 Water Quality Certification.pdf (2 pp, 230.947265625 K)

IHNC Appendix A - Environmental Cover Sheet.pdf (2 pp, 186.7431640625 K)

ANNEX 01_Inner Harbor Canal Lock LockSIM Model Report 08022019.pdf (171 pp, 4937.564453125 K)

ANNEX 02- REV- IHNC_Geotech Report (MVN-ED-F)_Write-up(cofferdam).pdf (100 pp, 5068.7451171875 K)

ANNEX 03 - Shallow Draft Cost July 2019.PDF (57 pp, 9826.9150390625 K)

ANNEX 04 - TCPS and Construction Schedule (2025).pdf (4 pp, 253.6904296875 K)

ANNEX 05 - IHNC Lock - Eng Sector Gate vs Miter Gate Write Up (2016).PDF (6 pp, 103.5595703125 K)

ANNEX 06- IHNC Lock- Cost and Closure Matrices.pdf (10 pp, 532.3818359375 K)

ANNEX 07 - IHNC Lock - ROM Cost CDF vs Venice Landfill.PDF (3 pp, 86.978515625 K)

ANNEX 12- IHNC Lock- FINAL Approved Riverine Cases 2010-07-26.pdf (6 pp, 353.5419921875 K)

IHNC Appendix E - Draft Transportation Mitigation Program 2025.pdf (25 pp, 621.8896484375 K)

IHNC Appendix E - July 2024 Traffic Study Growth Rate Addendum.pdf (5 pp, 3171.595703125 K)

IHNC Appendix E - July 2024 Traffic Study.pdf (752 pp, 54918.3955078125 K)

IHNC Appendix F - 1991_1st_Mini-Report.pdf (16 pp, 889.361328125 K)

IHNC Appendix F - 1992_2nd Mini-Report.pdf (41 pp, 5984.5849609375 K)

IHNC Appendix F - 1997 IHNC Lock Evaluation_Report_1 of 9.pdf (359 pp, 72104.9208984375 K)

IHNC Appendix F - 1998 IHNC Lock Evaluation EIS_Record of Decision 1998.pdf (2 pp, 1780.7001953125 K)

ANNEX 08 - IHNC Lock Quantities With 2024 Updates.PDF (57 pp, 7662.451171875 K)

ANNEX 09- FINAL- IHNC Lock Study Shallow_Eng Assessment Memo-2017 06 21.pdf (87 pp, 12755.708984375 K)

ANNEX 10- IHNC Lock Replacement GRR - Determination of Sill Depth for Shallow Draft Lock.pdf (3 pp, 127.693359375 K)

ANNEX 11 - IHNC Lock - 2025 Plates.pdf (109 pp, 68447.787109375 K)

ANNEX 13 T-Wall and St. Claude Bridge Feasibility Design.pdf (135 pp, 7490.9560546875 K)

ANNEX 14- Civil- St Claude SE and profile calcs-2019.pdf (2 pp, 84.0068359375 K)

IHNC Appendix B - Engineering.pdf (97 pp, 2420.908203125 K)

IHNC Appendix C - Real Estate.pdf (30 pp, 6315.5888671875 K)

Appendix D - Economics Addendum.pdf (42 pp, 886.6416015625 K)

Appendix D - Economics Attachment 1 Lock Capacity Analysis.pdf (27 pp, 1598.724609375 K)

Appendix D - Economics Attachment 2 Lock Capacity Calibration Report.pdf (12 pp, 275.8837890625 K)

Appendix D - Economics Attachment 3 Lock Capacity Optimized Tows and GA.pdf (9 pp, 218.4140625 K)

Appendix D - Economics Attachment 4 NIM recalibration.pdf (7 pp, 231.658203125 K)

Appendix D - Economics.pdf (212 pp, 7563.2041015625 K)

IHNC Appendix E - 1995 August Draft Evaluation Report CIMP Vol2.pdf (157 pp, 64725.4482421875 K)

IHNC Appendix E - 1997 CIMP Evaluation_Report_2 of 9.pdf (214 pp, 27728.65234375 K)

IHNC Appendix E - COPA Phase 1 and 2 Report.pdf (252 pp, 33597.9638671875 K)

IHNC Appendix E - Draft Community Impact Mitigation Plan 2025.pdf (40 pp, 855.572265625 K)

IHNC Appendix F - 2000 IHNC Lock Evaluation Report_Supplement 1.pdf (11 pp, 1266.5400390625 K)

IHNC Appendix F - 2009 IHNC Lock Final_SEIS_03_23_09.pdf (222 pp, 13990.92578125 K)

IHNC Appendix F - 2009 IHNC Lock SEIS 2009 Record of Decision.pdf (6 pp, 2426.880859375 K)

IHNC Appendix F - 2017 Draft GRR and Draft SEIS IHNC Lock Replacement Project.pdf (139 pp, 6172.4541015625 K)

Exhibit 1- 2011-09-09 Order and Reasons - HCNA vs Corps (IHNC).pdf (27 pp, 319.638671875 K)

Exhibit 2 - 2012-09-26 IHNC-PONO recommendation.pdf (3 pp, 171.9375 K)

Exhibit 3 - ASA memo for nonfed cost share revision_.pdf (1 pp, 506.009765625 K)

Exhibit 4 - May 16 2017 Battelle IEPR.pdf (72 pp, 994.478515625 K)

Exhibit 5 - IHNC HTRW Work Plan Approval Comment Responses to LDEQ.pdf (2 pp, 1092.9296875 K)

Exhibit 5 - Receipt of Letter - AI 9009.pdf (2 pp, 602.6318359375 K)

Exhibit 5 - USACE AI 9009.PDF (35 pp, 3990.041015625 K)