Southwest Pass survey data is referenced to Louisiana South State Plane Coordinates North American Data 1983 with sounding reference below Mean Lower Low Water in U.S. Survey Feet unless otherwise noted on the plan sheet.

South and Southwest Pass
   Survey title Survey date Survey date
       Sheet Name    River Mile Profile Cross-Sections & C/L Profile
Southwest Pass (MLLW)
   Sheet 1 09/12/2024 12/18/2024
       SW_01_SWP    MM 13.4-10.5 AHP PDF XYZ Shape PDF XYZ Shape
   Sheet 2 09/12/2024 12/18/2024
       SW_02_SWP    MM 10.5-7.7 AHP PDF XYZ Shape PDF XYZ Shape
   Sheet 3 09/12/2024 12/18/2024
       SW_03_SWP    MM 7.7-4.8 AHP PDF XYZ Shape PDF XYZ Shape
   Sheet 4 - Cubit's Gap 09/12/2024 12/20/2024
       SW_04_SWP    MM 4.8-2.0 AHP PDF XYZ Shape PDF XYZ Shape
   Sheet 5 - Head of Passes 09/12/2024 12/20/2024
       SW_05_SWP    MM 2.0-1.0 AHP PDF XYZ Shape PDF XYZ Shape
   Sheet 6 09/12/2024 12/19/2024
       SW_06_SWP    MM 1.0-3.7 PDF XYZ Shape PDF XYZ Shape
   Sheet 7 09/12/2024 12/19/2024
       SW_07_SWP    MM 3.7-6.7 PDF XYZ Shape PDF XYZ Shape
   Sheet 8 09/12/2024 12/19/2024
       SW_08_SWP    MM 6.7-9.6 PDF XYZ Shape PDF XYZ Shape
   Sheet 9 09/12/2024 12/19/2024
       SW_09_SWP    MM 9.6-12.4 PDF XYZ Shape PDF XYZ Shape
   Sheet 10 09/12/2024 12/19/2024
       SW_10_SWP    MM 12.4-15.2 PDF XYZ Shape PDF XYZ Shape
   Sheet 11 09/12/2024 12/19/2024
       SW_11_SWP    MM 15.2-18.0 PDF XYZ Shape PDF XYZ Shape
   Sheet 12 09/12/2024 12/19/2024
       SW_12_SWP    MM 18.0-21.0 PDF XYZ Shape PDF XYZ Shape
   Sheet 13 07/18/2024 12/17/2024
       SW_13_SWP    MM 19.2-22.0 PDF XYZ Shape PDF XYZ Shape
   Offshore Dredged Material Disposal Site 05/03/2023 08/13/2024
       SW_00_ODS    Offshore PDF XYZ Shape PDF XYZ Shape
   Pilottown Anchorage Area 06/24/2024 12/18/2024
       SW_00_PTA    MM 6.8-1.5 PDF XYZ Shape PDF XYZ Shape
South Pass (MLLW)
   Sheet 1 10/02/2024 09/17/2024
       SP_01_SPS    MM 0.0-1.0 PDF XYZ Shape PDF XYZ Shape
   Sheet 2 10/02/2024 09/17/2024
       SP_02_SPS    MM 1.0-3.5 PDF XYZ Shape PDF XYZ Shape
   Sheet 3 10/02/2024 09/17/2024
       SP_03_SPS    MM 3.5-6.5 PDF XYZ Shape PDF XYZ Shape
   Sheet 4 10/02/2024 09/17/2024
       SP_04_SPS    MM 6.5-9.2 PDF XYZ Shape PDF XYZ Shape
   Sheet 5 10/02/2024 09/17/2024
       SP_05_SPS    MM 9.2-12.1 PDF XYZ Shape PDF XYZ Shape
   Sheet 6 10/02/2024 09/17/2024
       SP_06_SPS    MM 12.1-Gulf PDF XYZ Shape PDF XYZ Shape